diff options
Diffstat (limited to 'sequencer.c')
| -rw-r--r-- | sequencer.c | 2927 |
1 files changed, 1893 insertions, 1034 deletions
diff --git a/sequencer.c b/sequencer.c index 65d371c746..8909a46770 100644 --- a/sequencer.c +++ b/sequencer.c @@ -14,9 +14,10 @@ #include "diff.h" #include "revision.h" #include "rerere.h" -#include "merge-recursive.h" +#include "merge-ort.h" +#include "merge-ort-wrappers.h" #include "refs.h" -#include "argv-array.h" +#include "strvec.h" #include "quote.h" #include "trailer.h" #include "log-tree.h" @@ -30,15 +31,18 @@ #include "oidset.h" #include "commit-slab.h" #include "alias.h" +#include "commit-reach.h" +#include "rebase-interactive.h" +#include "reset.h" #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" -const char sign_off_header[] = "Signed-off-by: "; +static const char sign_off_header[] = "Signed-off-by: "; static const char cherry_picked_prefix[] = "(cherry picked from commit "; GIT_PATH_FUNC(git_path_commit_editmsg, "COMMIT_EDITMSG") -GIT_PATH_FUNC(git_path_seq_dir, "sequencer") +static GIT_PATH_FUNC(git_path_seq_dir, "sequencer") static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo") static GIT_PATH_FUNC(git_path_opts_file, "sequencer/opts") @@ -52,7 +56,11 @@ static GIT_PATH_FUNC(rebase_path, "rebase-merge") * the lines are processed, they are removed from the front of this * file and written to the tail of 'done'. */ -static GIT_PATH_FUNC(rebase_path_todo, "rebase-merge/git-rebase-todo") +GIT_PATH_FUNC(rebase_path_todo, "rebase-merge/git-rebase-todo") +GIT_PATH_FUNC(rebase_path_todo_backup, "rebase-merge/git-rebase-todo.backup") + +GIT_PATH_FUNC(rebase_path_dropped, "rebase-merge/dropped") + /* * The rebase command lines that have already been processed. A line * is moved here when it is first handled, before any associated user @@ -113,7 +121,7 @@ static GIT_PATH_FUNC(rebase_path_author_script, "rebase-merge/author-script") static GIT_PATH_FUNC(rebase_path_amend, "rebase-merge/amend") /* * When we stop at a given patch via the "edit" command, this file contains - * the abbreviated commit name of the corresponding patch. + * the commit object name of the corresponding patch. */ static GIT_PATH_FUNC(rebase_path_stopped_sha, "rebase-merge/stopped-sha") /* @@ -127,7 +135,7 @@ static GIT_PATH_FUNC(rebase_path_rewritten_pending, "rebase-merge/rewritten-pending") /* - * The path of the file containig the OID of the "squash onto" commit, i.e. + * The path of the file containing the OID of the "squash onto" commit, i.e. * the dummy commit used for `reset [new root]`. */ static GIT_PATH_FUNC(rebase_path_squash_onto, "rebase-merge/squash-onto") @@ -140,11 +148,14 @@ static GIT_PATH_FUNC(rebase_path_refs_to_delete, "rebase-merge/refs-to-delete") /* * The following files are written by git-rebase just after parsing the - * command-line (and are only consumed, not modified, by the sequencer). + * command-line. */ static GIT_PATH_FUNC(rebase_path_gpg_sign_opt, "rebase-merge/gpg_sign_opt") +static GIT_PATH_FUNC(rebase_path_cdate_is_adate, "rebase-merge/cdate_is_adate") +static GIT_PATH_FUNC(rebase_path_ignore_date, "rebase-merge/ignore_date") static GIT_PATH_FUNC(rebase_path_orig_head, "rebase-merge/orig-head") static GIT_PATH_FUNC(rebase_path_verbose, "rebase-merge/verbose") +static GIT_PATH_FUNC(rebase_path_quiet, "rebase-merge/quiet") static GIT_PATH_FUNC(rebase_path_signoff, "rebase-merge/signoff") static GIT_PATH_FUNC(rebase_path_head_name, "rebase-merge/head-name") static GIT_PATH_FUNC(rebase_path_onto, "rebase-merge/onto") @@ -152,6 +163,9 @@ static GIT_PATH_FUNC(rebase_path_autostash, "rebase-merge/autostash") static GIT_PATH_FUNC(rebase_path_strategy, "rebase-merge/strategy") static GIT_PATH_FUNC(rebase_path_strategy_opts, "rebase-merge/strategy_opts") static GIT_PATH_FUNC(rebase_path_allow_rerere_autoupdate, "rebase-merge/allow_rerere_autoupdate") +static GIT_PATH_FUNC(rebase_path_reschedule_failed_exec, "rebase-merge/reschedule-failed-exec") +static GIT_PATH_FUNC(rebase_path_drop_redundant_commits, "rebase-merge/drop_redundant_commits") +static GIT_PATH_FUNC(rebase_path_keep_redundant_commits, "rebase-merge/keep_redundant_commits") static int git_sequencer_config(const char *k, const char *v, void *cb) { @@ -165,17 +179,22 @@ static int git_sequencer_config(const char *k, const char *v, void *cb) if (status) return status; - if (!strcmp(s, "verbatim")) + if (!strcmp(s, "verbatim")) { opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_NONE; - else if (!strcmp(s, "whitespace")) + opts->explicit_cleanup = 1; + } else if (!strcmp(s, "whitespace")) { opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_SPACE; - else if (!strcmp(s, "strip")) + opts->explicit_cleanup = 1; + } else if (!strcmp(s, "strip")) { opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_ALL; - else if (!strcmp(s, "scissors")) - opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_SPACE; - else + opts->explicit_cleanup = 1; + } else if (!strcmp(s, "scissors")) { + opts->default_msg_cleanup = COMMIT_MSG_CLEANUP_SCISSORS; + opts->explicit_cleanup = 1; + } else { warning(_("invalid commit message cleanup mode '%s'"), s); + } free((char *)s); return status; @@ -186,6 +205,20 @@ static int git_sequencer_config(const char *k, const char *v, void *cb) return 0; } + if (!opts->default_strategy && !strcmp(k, "pull.twohead")) { + int ret = git_config_string((const char**)&opts->default_strategy, k, v); + if (ret == 0) { + /* + * pull.twohead is allowed to be multi-valued; we only + * care about the first value. + */ + char *tmp = strchr(opts->default_strategy, ' '); + if (tmp) + *tmp = '\0'; + } + return ret; + } + status = git_gpg_config(k, v, NULL); if (status) return status; @@ -225,13 +258,25 @@ static const char *get_todo_path(const struct replay_opts *opts) * Returns 3 when sob exists within conforming footer as last entry */ static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob, - int ignore_footer) + size_t ignore_footer) { + struct process_trailer_options opts = PROCESS_TRAILER_OPTIONS_INIT; struct trailer_info info; - int i; + size_t i; int found_sob = 0, found_sob_last = 0; + char saved_char; + + opts.no_divider = 1; + + if (ignore_footer) { + saved_char = sb->buf[sb->len - ignore_footer]; + sb->buf[sb->len - ignore_footer] = '\0'; + } - trailer_info_get(&info, sb->buf); + trailer_info_get(&info, sb->buf, &opts); + + if (ignore_footer) + sb->buf[sb->len - ignore_footer] = saved_char; if (info.trailer_start == info.trailer_end) return 0; @@ -265,7 +310,7 @@ static const char *gpg_sign_opt_quoted(struct replay_opts *opts) int sequencer_remove_state(struct replay_opts *opts) { struct strbuf buf = STRBUF_INIT; - int i; + int i, ret = 0; if (is_rebase_i(opts) && strbuf_read_file(&buf, rebase_path_refs_to_delete(), 0) > 0) { @@ -274,8 +319,10 @@ int sequencer_remove_state(struct replay_opts *opts) char *eol = strchr(p, '\n'); if (eol) *eol = '\0'; - if (delete_ref("(rebase -i) cleanup", p, NULL, 0) < 0) + if (delete_ref("(rebase) cleanup", p, NULL, 0) < 0) { warning(_("could not delete '%s'"), p); + ret = -1; + } if (!eol) break; p = eol + 1; @@ -283,6 +330,7 @@ int sequencer_remove_state(struct replay_opts *opts) } free(opts->gpg_sign); + free(opts->default_strategy); free(opts->strategy); for (i = 0; i < opts->xopts_nr; i++) free(opts->xopts[i]); @@ -291,10 +339,11 @@ int sequencer_remove_state(struct replay_opts *opts) strbuf_reset(&buf); strbuf_addstr(&buf, get_dir(opts)); - remove_dir_recursively(&buf, 0); + if (remove_dir_recursively(&buf, 0)) + ret = error(_("could not remove '%s'"), buf.buf); strbuf_release(&buf); - return 0; + return ret; } static const char *action_name(const struct replay_opts *opts) @@ -305,7 +354,7 @@ static const char *action_name(const struct replay_opts *opts) case REPLAY_PICK: return N_("cherry-pick"); case REPLAY_INTERACTIVE_REBASE: - return N_("rebase -i"); + return N_("rebase"); } die(_("unknown action: %d"), opts->action); } @@ -333,7 +382,7 @@ static int get_message(struct commit *commit, struct commit_message *out) subject_len = find_commit_subject(out->message, &subject); out->subject = xmemdupz(subject, subject_len); - out->label = xstrfmt("%s... %s", abbrev, out->subject); + out->label = xstrfmt("%s (%s)", abbrev, out->subject); out->parent_label = xstrfmt("parent of %s", out->label); return 0; @@ -347,7 +396,8 @@ static void free_message(struct commit *commit, struct commit_message *msg) unuse_commit_buffer(commit, msg->message); } -static void print_advice(int show_hint, struct replay_opts *opts) +static void print_advice(struct repository *r, int show_hint, + struct replay_opts *opts) { char *msg = getenv("GIT_CHERRY_PICK_HELP"); @@ -358,7 +408,8 @@ static void print_advice(int show_hint, struct replay_opts *opts) * (typically rebase --interactive) wants to take care * of the commit itself so remove CHERRY_PICK_HEAD */ - unlink(git_path_cherry_pick_head(the_repository)); + refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD", + NULL, 0); return; } @@ -397,25 +448,15 @@ static int write_message(const void *buf, size_t len, const char *filename, return 0; } -/* - * Reads a file that was presumably written by a shell script, i.e. with an - * end-of-line marker that needs to be stripped. - * - * Note that only the last end-of-line marker is stripped, consistent with the - * behavior of "$(cat path)" in a shell script. - * - * Returns 1 if the file was read, 0 if it could not be read or does not exist. - */ -static int read_oneliner(struct strbuf *buf, - const char *path, int skip_if_empty) +int read_oneliner(struct strbuf *buf, + const char *path, unsigned flags) { int orig_len = buf->len; - if (!file_exists(path)) - return 0; - if (strbuf_read_file(buf, path, 0) < 0) { - warning_errno(_("could not read '%s'"), path); + if ((flags & READ_ONELINER_WARN_MISSING) || + (errno != ENOENT && errno != ENOTDIR)) + warning_errno(_("could not read '%s'"), path); return 0; } @@ -425,20 +466,20 @@ static int read_oneliner(struct strbuf *buf, buf->buf[buf->len] = '\0'; } - if (skip_if_empty && buf->len == orig_len) + if ((flags & READ_ONELINER_SKIP_IF_EMPTY) && buf->len == orig_len) return 0; return 1; } -static struct tree *empty_tree(void) +static struct tree *empty_tree(struct repository *r) { - return lookup_tree(the_repository, the_repository->hash_algo->empty_tree); + return lookup_tree(r, the_hash_algo->empty_tree); } -static int error_dirty_index(struct replay_opts *opts) +static int error_dirty_index(struct repository *repo, struct replay_opts *opts) { - if (read_cache_unmerged()) + if (repo_read_index_unmerged(repo)) return error_resolve_conflict(_(action_name(opts))); error(_("your local changes would be overwritten by %s."), @@ -463,15 +504,18 @@ static void update_abort_safety_file(void) write_file(git_path_abort_safety_file(), "%s", ""); } -static int fast_forward_to(const struct object_id *to, const struct object_id *from, - int unborn, struct replay_opts *opts) +static int fast_forward_to(struct repository *r, + const struct object_id *to, + const struct object_id *from, + int unborn, + struct replay_opts *opts) { struct ref_transaction *transaction; struct strbuf sb = STRBUF_INIT; struct strbuf err = STRBUF_INIT; - read_cache(); - if (checkout_fast_forward(from, to, 1)) + repo_read_index(r); + if (checkout_fast_forward(r, from, to, 1)) return -1; /* the callee should have complained already */ strbuf_addf(&sb, _("%s: fast-forward"), _(action_name(opts))); @@ -497,40 +541,86 @@ static int fast_forward_to(const struct object_id *to, const struct object_id *f return 0; } -void append_conflicts_hint(struct strbuf *msgbuf) +enum commit_msg_cleanup_mode get_cleanup_mode(const char *cleanup_arg, + int use_editor) +{ + if (!cleanup_arg || !strcmp(cleanup_arg, "default")) + return use_editor ? COMMIT_MSG_CLEANUP_ALL : + COMMIT_MSG_CLEANUP_SPACE; + else if (!strcmp(cleanup_arg, "verbatim")) + return COMMIT_MSG_CLEANUP_NONE; + else if (!strcmp(cleanup_arg, "whitespace")) + return COMMIT_MSG_CLEANUP_SPACE; + else if (!strcmp(cleanup_arg, "strip")) + return COMMIT_MSG_CLEANUP_ALL; + else if (!strcmp(cleanup_arg, "scissors")) + return use_editor ? COMMIT_MSG_CLEANUP_SCISSORS : + COMMIT_MSG_CLEANUP_SPACE; + else + die(_("Invalid cleanup mode %s"), cleanup_arg); +} + +/* + * NB using int rather than enum cleanup_mode to stop clang's + * -Wtautological-constant-out-of-range-compare complaining that the comparison + * is always true. + */ +static const char *describe_cleanup_mode(int cleanup_mode) +{ + static const char *modes[] = { "whitespace", + "verbatim", + "scissors", + "strip" }; + + if (cleanup_mode < ARRAY_SIZE(modes)) + return modes[cleanup_mode]; + + BUG("invalid cleanup_mode provided (%d)", cleanup_mode); +} + +void append_conflicts_hint(struct index_state *istate, + struct strbuf *msgbuf, enum commit_msg_cleanup_mode cleanup_mode) { int i; + if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS) { + strbuf_addch(msgbuf, '\n'); + wt_status_append_cut_line(msgbuf); + strbuf_addch(msgbuf, comment_line_char); + } + strbuf_addch(msgbuf, '\n'); strbuf_commented_addf(msgbuf, "Conflicts:\n"); - for (i = 0; i < active_nr;) { - const struct cache_entry *ce = active_cache[i++]; + for (i = 0; i < istate->cache_nr;) { + const struct cache_entry *ce = istate->cache[i++]; if (ce_stage(ce)) { strbuf_commented_addf(msgbuf, "\t%s\n", ce->name); - while (i < active_nr && !strcmp(ce->name, - active_cache[i]->name)) + while (i < istate->cache_nr && + !strcmp(ce->name, istate->cache[i]->name)) i++; } } } -static int do_recursive_merge(struct commit *base, struct commit *next, +static int do_recursive_merge(struct repository *r, + struct commit *base, struct commit *next, const char *base_label, const char *next_label, struct object_id *head, struct strbuf *msgbuf, struct replay_opts *opts) { struct merge_options o; - struct tree *result, *next_tree, *base_tree, *head_tree; - int clean; - char **xopt; + struct merge_result result; + struct tree *next_tree, *base_tree, *head_tree; + int clean, show_output; + int i; struct lock_file index_lock = LOCK_INIT; - if (hold_locked_index(&index_lock, LOCK_REPORT_ON_ERROR) < 0) + if (repo_hold_locked_index(r, &index_lock, LOCK_REPORT_ON_ERROR) < 0) return -1; - read_cache(); + repo_read_index(r); - init_merge_options(&o); + init_merge_options(&o, r); o.ancestor = base ? base_label : "(empty tree)"; o.branch1 = "HEAD"; o.branch2 = next ? next_label : "(empty tree)"; @@ -539,62 +629,78 @@ static int do_recursive_merge(struct commit *base, struct commit *next, o.show_rename_progress = 1; head_tree = parse_tree_indirect(head); - next_tree = next ? get_commit_tree(next) : empty_tree(); - base_tree = base ? get_commit_tree(base) : empty_tree(); + next_tree = next ? get_commit_tree(next) : empty_tree(r); + base_tree = base ? get_commit_tree(base) : empty_tree(r); - for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++) - parse_merge_opt(&o, *xopt); + for (i = 0; i < opts->xopts_nr; i++) + parse_merge_opt(&o, opts->xopts[i]); - clean = merge_trees(&o, - head_tree, - next_tree, base_tree, &result); - if (is_rebase_i(opts) && clean <= 0) - fputs(o.obuf.buf, stdout); - strbuf_release(&o.obuf); - diff_warn_rename_limit("merge.renamelimit", o.needed_rename_limit, 0); + if (opts->strategy && !strcmp(opts->strategy, "ort")) { + memset(&result, 0, sizeof(result)); + merge_incore_nonrecursive(&o, base_tree, head_tree, next_tree, + &result); + show_output = !is_rebase_i(opts) || !result.clean; + /* + * TODO: merge_switch_to_result will update index/working tree; + * we only really want to do that if !result.clean || this is + * the final patch to be picked. But determining this is the + * final patch would take some work, and "head_tree" would need + * to be replace with the tree the index matched before we + * started doing any picks. + */ + merge_switch_to_result(&o, head_tree, &result, 1, show_output); + clean = result.clean; + } else { + clean = merge_trees(&o, head_tree, next_tree, base_tree); + if (is_rebase_i(opts) && clean <= 0) + fputs(o.obuf.buf, stdout); + strbuf_release(&o.obuf); + } if (clean < 0) { rollback_lock_file(&index_lock); return clean; } - if (write_locked_index(&the_index, &index_lock, + if (write_locked_index(r->index, &index_lock, COMMIT_LOCK | SKIP_IF_UNCHANGED)) /* * TRANSLATORS: %s will be "revert", "cherry-pick" or - * "rebase -i". + * "rebase". */ return error(_("%s: Unable to write new index file"), _(action_name(opts))); if (!clean) - append_conflicts_hint(msgbuf); + append_conflicts_hint(r->index, msgbuf, + opts->default_msg_cleanup); return !clean; } -static struct object_id *get_cache_tree_oid(void) +static struct object_id *get_cache_tree_oid(struct index_state *istate) { - if (!active_cache_tree) - active_cache_tree = cache_tree(); + if (!istate->cache_tree) + istate->cache_tree = cache_tree(); - if (!cache_tree_fully_valid(active_cache_tree)) - if (cache_tree_update(&the_index, 0)) { + if (!cache_tree_fully_valid(istate->cache_tree)) + if (cache_tree_update(istate, 0)) { error(_("unable to update cache tree")); return NULL; } - return &active_cache_tree->oid; + return &istate->cache_tree->oid; } -static int is_index_unchanged(void) +static int is_index_unchanged(struct repository *r) { struct object_id head_oid, *cache_tree_oid; struct commit *head_commit; + struct index_state *istate = r->index; if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, &head_oid, NULL)) return error(_("could not resolve HEAD commit")); - head_commit = lookup_commit(the_repository, &head_oid); + head_commit = lookup_commit(r, &head_oid); /* * If head_commit is NULL, check_commit, called from @@ -607,10 +713,10 @@ static int is_index_unchanged(void) if (parse_commit(head_commit)) return -1; - if (!(cache_tree_oid = get_cache_tree_oid())) + if (!(cache_tree_oid = get_cache_tree_oid(istate))) return -1; - return !oidcmp(cache_tree_oid, get_commit_tree_oid(head_commit)); + return oideq(cache_tree_oid, get_commit_tree_oid(head_commit)); } static int write_author_script(const char *message) @@ -639,7 +745,7 @@ missing_author: else if (*message != '\'') strbuf_addch(&buf, *(message++)); else - strbuf_addf(&buf, "'\\\\%c'", *(message++)); + strbuf_addf(&buf, "'\\%c'", *(message++)); strbuf_addstr(&buf, "'\nGIT_AUTHOR_EMAIL='"); while (*message && *message != '\n' && *message != '\r') if (skip_prefix(message, "> ", &message)) @@ -647,46 +753,144 @@ missing_author: else if (*message != '\'') strbuf_addch(&buf, *(message++)); else - strbuf_addf(&buf, "'\\\\%c'", *(message++)); + strbuf_addf(&buf, "'\\%c'", *(message++)); strbuf_addstr(&buf, "'\nGIT_AUTHOR_DATE='@"); while (*message && *message != '\n' && *message != '\r') if (*message != '\'') strbuf_addch(&buf, *(message++)); else - strbuf_addf(&buf, "'\\\\%c'", *(message++)); + strbuf_addf(&buf, "'\\%c'", *(message++)); strbuf_addch(&buf, '\''); res = write_message(buf.buf, buf.len, rebase_path_author_script(), 1); strbuf_release(&buf); return res; } -/* - * Read a list of environment variable assignments (such as the author-script - * file) into an environment block. Returns -1 on error, 0 otherwise. +/** + * Take a series of KEY='VALUE' lines where VALUE part is + * sq-quoted, and append <KEY, VALUE> at the end of the string list */ -static int read_env_script(struct argv_array *env) +static int parse_key_value_squoted(char *buf, struct string_list *list) { - struct strbuf script = STRBUF_INIT; - int i, count = 0; - char *p, *p2; + while (*buf) { + struct string_list_item *item; + char *np; + char *cp = strchr(buf, '='); + if (!cp) { + np = strchrnul(buf, '\n'); + return error(_("no key present in '%.*s'"), + (int) (np - buf), buf); + } + np = strchrnul(cp, '\n'); + *cp++ = '\0'; + item = string_list_append(list, buf); + + buf = np + (*np == '\n'); + *np = '\0'; + cp = sq_dequote(cp); + if (!cp) + return error(_("unable to dequote value of '%s'"), + item->string); + item->util = xstrdup(cp); + } + return 0; +} - if (strbuf_read_file(&script, rebase_path_author_script(), 256) <= 0) - return -1; +/** + * Reads and parses the state directory's "author-script" file, and sets name, + * email and date accordingly. + * Returns 0 on success, -1 if the file could not be parsed. + * + * The author script is of the format: + * + * GIT_AUTHOR_NAME='$author_name' + * GIT_AUTHOR_EMAIL='$author_email' + * GIT_AUTHOR_DATE='$author_date' + * + * where $author_name, $author_email and $author_date are quoted. We are strict + * with our parsing, as the file was meant to be eval'd in the now-removed + * git-am.sh/git-rebase--interactive.sh scripts, and thus if the file differs + * from what this function expects, it is better to bail out than to do + * something that the user does not expect. + */ +int read_author_script(const char *path, char **name, char **email, char **date, + int allow_missing) +{ + struct strbuf buf = STRBUF_INIT; + struct string_list kv = STRING_LIST_INIT_DUP; + int retval = -1; /* assume failure */ + int i, name_i = -2, email_i = -2, date_i = -2, err = 0; - for (p = script.buf; *p; p++) - if (skip_prefix(p, "'\\\\''", (const char **)&p2)) - strbuf_splice(&script, p - script.buf, p2 - p, "'", 1); - else if (*p == '\'') - strbuf_splice(&script, p-- - script.buf, 1, "", 0); - else if (*p == '\n') { - *p = '\0'; - count++; - } + if (strbuf_read_file(&buf, path, 256) <= 0) { + strbuf_release(&buf); + if (errno == ENOENT && allow_missing) + return 0; + else + return error_errno(_("could not open '%s' for reading"), + path); + } + + if (parse_key_value_squoted(buf.buf, &kv)) + goto finish; - for (i = 0, p = script.buf; i < count; i++) { - argv_array_push(env, p); - p += strlen(p) + 1; + for (i = 0; i < kv.nr; i++) { + if (!strcmp(kv.items[i].string, "GIT_AUTHOR_NAME")) { + if (name_i != -2) + name_i = error(_("'GIT_AUTHOR_NAME' already given")); + else + name_i = i; + } else if (!strcmp(kv.items[i].string, "GIT_AUTHOR_EMAIL")) { + if (email_i != -2) + email_i = error(_("'GIT_AUTHOR_EMAIL' already given")); + else + email_i = i; + } else if (!strcmp(kv.items[i].string, "GIT_AUTHOR_DATE")) { + if (date_i != -2) + date_i = error(_("'GIT_AUTHOR_DATE' already given")); + else + date_i = i; + } else { + err = error(_("unknown variable '%s'"), + kv.items[i].string); + } } + if (name_i == -2) + error(_("missing 'GIT_AUTHOR_NAME'")); + if (email_i == -2) + error(_("missing 'GIT_AUTHOR_EMAIL'")); + if (date_i == -2) + error(_("missing 'GIT_AUTHOR_DATE'")); + if (date_i < 0 || email_i < 0 || date_i < 0 || err) + goto finish; + *name = kv.items[name_i].util; + *email = kv.items[email_i].util; + *date = kv.items[date_i].util; + retval = 0; +finish: + string_list_clear(&kv, !!retval); + strbuf_release(&buf); + return retval; +} + +/* + * Read a GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL AND GIT_AUTHOR_DATE from a + * file with shell quoting into struct strvec. Returns -1 on + * error, 0 otherwise. + */ +static int read_env_script(struct strvec *env) +{ + char *name, *email, *date; + + if (read_author_script(rebase_path_author_script(), + &name, &email, &date, 0)) + return -1; + + strvec_pushf(env, "GIT_AUTHOR_NAME=%s", name); + strvec_pushf(env, "GIT_AUTHOR_EMAIL=%s", email); + strvec_pushf(env, "GIT_AUTHOR_DATE=%s", date); + free(name); + free(email); + free(date); return 0; } @@ -703,58 +907,20 @@ static char *get_author(const char *message) return NULL; } -/* Read author-script and return an ident line (author <email> timestamp) */ -static const char *read_author_ident(struct strbuf *buf) +static const char *author_date_from_env_array(const struct strvec *env) { - const char *keys[] = { - "GIT_AUTHOR_NAME=", "GIT_AUTHOR_EMAIL=", "GIT_AUTHOR_DATE=" - }; - struct strbuf out = STRBUF_INIT; - char *in, *eol; - const char *val[3]; - int i = 0; - - if (strbuf_read_file(buf, rebase_path_author_script(), 256) <= 0) - return NULL; - - /* dequote values and construct ident line in-place */ - for (in = buf->buf; i < 3 && in - buf->buf < buf->len; i++) { - if (!skip_prefix(in, keys[i], (const char **)&in)) { - warning(_("could not parse '%s' (looking for '%s'"), - rebase_path_author_script(), keys[i]); - return NULL; - } - - eol = strchrnul(in, '\n'); - *eol = '\0'; - if (!sq_dequote(in)) { - warning(_("bad quoting on %s value in '%s'"), - keys[i], rebase_path_author_script()); - return NULL; - } - val[i] = in; - in = eol + 1; - } - - if (i < 3) { - warning(_("could not parse '%s' (looking for '%s')"), - rebase_path_author_script(), keys[i]); - return NULL; - } - - /* validate date since fmt_ident() will die() on bad value */ - if (parse_date(val[2], &out)){ - warning(_("invalid date format '%s' in '%s'"), - val[2], rebase_path_author_script()); - strbuf_release(&out); - return NULL; - } + int i; + const char *date; - strbuf_reset(&out); - strbuf_addstr(&out, fmt_ident(val[0], val[1], val[2], 0)); - strbuf_swap(buf, &out); - strbuf_release(&out); - return buf->buf; + for (i = 0; i < env->nr; i++) + if (skip_prefix(env->v[i], + "GIT_AUTHOR_DATE=", &date)) + return date; + /* + * If GIT_AUTHOR_DATE is missing we should have already errored out when + * reading the script + */ + BUG("GIT_AUTHOR_DATE missing from author script"); } static const char staged_changes_advice[] = @@ -778,6 +944,23 @@ N_("you have staged changes in your working tree\n" #define VERIFY_MSG (1<<4) #define CREATE_ROOT_COMMIT (1<<5) +static int run_command_silent_on_success(struct child_process *cmd) +{ + struct strbuf buf = STRBUF_INIT; + int rc; + + cmd->stdout_to_stderr = 1; + rc = pipe_command(cmd, + NULL, 0, + NULL, 0, + &buf, 0); + + if (rc) + fputs(buf.buf, stderr); + strbuf_release(&buf); + return rc; +} + /* * If we are cherry-pick, and if the merge did not result in * hand-editing, we will hit this commit and inherit the original @@ -790,104 +973,62 @@ N_("you have staged changes in your working tree\n" * interactive rebase: in that case, we will want to retain the * author metadata. */ -static int run_git_commit(const char *defmsg, struct replay_opts *opts, +static int run_git_commit(const char *defmsg, + struct replay_opts *opts, unsigned int flags) { struct child_process cmd = CHILD_PROCESS_INIT; - const char *value; - - if ((flags & CREATE_ROOT_COMMIT) && !(flags & AMEND_MSG)) { - struct strbuf msg = STRBUF_INIT, script = STRBUF_INIT; - const char *author = is_rebase_i(opts) ? - read_author_ident(&script) : NULL; - struct object_id root_commit, *cache_tree_oid; - int res = 0; - - if (!defmsg) - BUG("root commit without message"); - - if (!(cache_tree_oid = get_cache_tree_oid())) - res = -1; - - if (!res) - res = strbuf_read_file(&msg, defmsg, 0); - - if (res <= 0) - res = error_errno(_("could not read '%s'"), defmsg); - else - res = commit_tree(msg.buf, msg.len, cache_tree_oid, - NULL, &root_commit, author, - opts->gpg_sign); - - strbuf_release(&msg); - strbuf_release(&script); - if (!res) { - update_ref(NULL, "CHERRY_PICK_HEAD", &root_commit, NULL, - REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR); - res = update_ref(NULL, "HEAD", &root_commit, NULL, 0, - UPDATE_REFS_MSG_ON_ERR); - } - return res < 0 ? error(_("writing root commit")) : 0; - } cmd.git_cmd = 1; - if (is_rebase_i(opts)) { - if (!(flags & EDIT_MSG)) { - cmd.stdout_to_stderr = 1; - cmd.err = -1; - } - - if (read_env_script(&cmd.env_array)) { - const char *gpg_opt = gpg_sign_opt_quoted(opts); + if (is_rebase_i(opts) && read_env_script(&cmd.env_array)) { + const char *gpg_opt = gpg_sign_opt_quoted(opts); - return error(_(staged_changes_advice), - gpg_opt, gpg_opt); - } + return error(_(staged_changes_advice), + gpg_opt, gpg_opt); } - argv_array_push(&cmd.args, "commit"); + if (opts->committer_date_is_author_date) + strvec_pushf(&cmd.env_array, "GIT_COMMITTER_DATE=%s", + opts->ignore_date ? + "" : + author_date_from_env_array(&cmd.env_array)); + if (opts->ignore_date) + strvec_push(&cmd.env_array, "GIT_AUTHOR_DATE="); + + strvec_push(&cmd.args, "commit"); if (!(flags & VERIFY_MSG)) - argv_array_push(&cmd.args, "-n"); + strvec_push(&cmd.args, "-n"); if ((flags & AMEND_MSG)) - argv_array_push(&cmd.args, "--amend"); + strvec_push(&cmd.args, "--amend"); if (opts->gpg_sign) - argv_array_pushf(&cmd.args, "-S%s", opts->gpg_sign); + strvec_pushf(&cmd.args, "-S%s", opts->gpg_sign); + else + strvec_push(&cmd.args, "--no-gpg-sign"); if (defmsg) - argv_array_pushl(&cmd.args, "-F", defmsg, NULL); + strvec_pushl(&cmd.args, "-F", defmsg, NULL); else if (!(flags & EDIT_MSG)) - argv_array_pushl(&cmd.args, "-C", "HEAD", NULL); + strvec_pushl(&cmd.args, "-C", "HEAD", NULL); if ((flags & CLEANUP_MSG)) - argv_array_push(&cmd.args, "--cleanup=strip"); + strvec_push(&cmd.args, "--cleanup=strip"); if ((flags & EDIT_MSG)) - argv_array_push(&cmd.args, "-e"); + strvec_push(&cmd.args, "-e"); else if (!(flags & CLEANUP_MSG) && !opts->signoff && !opts->record_origin && - git_config_get_value("commit.cleanup", &value)) - argv_array_push(&cmd.args, "--cleanup=verbatim"); + !opts->explicit_cleanup) + strvec_push(&cmd.args, "--cleanup=verbatim"); if ((flags & ALLOW_EMPTY)) - argv_array_push(&cmd.args, "--allow-empty"); + strvec_push(&cmd.args, "--allow-empty"); - if (opts->allow_empty_message) - argv_array_push(&cmd.args, "--allow-empty-message"); - - if (cmd.err == -1) { - /* hide stderr on success */ - struct strbuf buf = STRBUF_INIT; - int rc = pipe_command(&cmd, - NULL, 0, - /* stdout is already redirected */ - NULL, 0, - &buf, 0); - if (rc) - fputs(buf.buf, stderr); - strbuf_release(&buf); - return rc; - } + if (!(flags & EDIT_MSG)) + strvec_push(&cmd.args, "--allow-empty-message"); - return run_command(&cmd); + if (is_rebase_i(opts) && !(flags & EDIT_MSG)) + return run_command_silent_on_success(&cmd); + else + return run_command(&cmd); } static int rest_is_empty(const struct strbuf *sb, int start) @@ -916,6 +1057,16 @@ static int rest_is_empty(const struct strbuf *sb, int start) return 1; } +void cleanup_message(struct strbuf *msgbuf, + enum commit_msg_cleanup_mode cleanup_mode, int verbose) +{ + if (verbose || /* Truncate the message just before the diff, if any. */ + cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS) + strbuf_setlen(msgbuf, wt_status_locate_end(msgbuf->buf, msgbuf->len)); + if (cleanup_mode != COMMIT_MSG_CLEANUP_NONE) + strbuf_stripspace(msgbuf, cleanup_mode == COMMIT_MSG_CLEANUP_ALL); +} + /* * Find out if the message in the strbuf contains only whitespace and * Signed-off-by lines. @@ -1006,6 +1157,7 @@ static int run_rewrite_hook(const struct object_id *oldoid, proc.argv = argv; proc.in = -1; proc.stdout_to_stderr = 1; + proc.trace2_hook_name = "post-rewrite"; code = start_command(&proc); if (code) @@ -1019,7 +1171,8 @@ static int run_rewrite_hook(const struct object_id *oldoid, return finish_command(&proc); } -void commit_post_rewrite(const struct commit *old_head, +void commit_post_rewrite(struct repository *r, + const struct commit *old_head, const struct object_id *new_head) { struct notes_rewrite_cfg *cfg; @@ -1028,32 +1181,31 @@ void commit_post_rewrite(const struct commit *old_head, if (cfg) { /* we are amending, so old_head is not NULL */ copy_note_for_rewrite(cfg, &old_head->object.oid, new_head); - finish_copy_notes_for_rewrite(cfg, "Notes added by 'git commit --amend'"); + finish_copy_notes_for_rewrite(r, cfg, "Notes added by 'git commit --amend'"); } run_rewrite_hook(&old_head->object.oid, new_head); } -static int run_prepare_commit_msg_hook(struct strbuf *msg, const char *commit) +static int run_prepare_commit_msg_hook(struct repository *r, + struct strbuf *msg, + const char *commit) { - struct argv_array hook_env = ARGV_ARRAY_INIT; - int ret; - const char *name; + int ret = 0; + const char *name, *arg1 = NULL, *arg2 = NULL; name = git_path_commit_editmsg(); if (write_message(msg->buf, msg->len, name, 0)) return -1; - argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", get_index_file()); - argv_array_push(&hook_env, "GIT_EDITOR=:"); - if (commit) - ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name, - "commit", commit, NULL); - else - ret = run_hook_le(hook_env.argv, "prepare-commit-msg", name, - "message", NULL); - if (ret) + if (commit) { + arg1 = "commit"; + arg2 = commit; + } else { + arg1 = "message"; + } + if (run_commit_hook(0, r->index_file, "prepare-commit-msg", name, + arg1, arg2, NULL)) ret = error(_("'prepare-commit-msg' hook failed")); - argv_array_clear(&hook_env); return ret; } @@ -1099,7 +1251,9 @@ static const char *implicit_ident_advice(void) } -void print_commit_summary(const char *prefix, const struct object_id *oid, +void print_commit_summary(struct repository *r, + const char *prefix, + const struct object_id *oid, unsigned int flags) { struct rev_info rev; @@ -1110,7 +1264,7 @@ void print_commit_summary(const char *prefix, const struct object_id *oid, struct strbuf author_ident = STRBUF_INIT; struct strbuf committer_ident = STRBUF_INIT; - commit = lookup_commit(the_repository, oid); + commit = lookup_commit(r, oid); if (!commit) die(_("couldn't look up newly created commit")); if (parse_commit(commit)) @@ -1143,7 +1297,7 @@ void print_commit_summary(const char *prefix, const struct object_id *oid, strbuf_release(&author_ident); strbuf_release(&committer_ident); - init_revisions(&rev, prefix); + repo_init_revisions(r, &rev, prefix); setup_revisions(0, NULL, &rev, NULL); rev.diff = 1; @@ -1177,7 +1331,7 @@ void print_commit_summary(const char *prefix, const struct object_id *oid, strbuf_release(&format); } -static int parse_head(struct commit **head) +static int parse_head(struct repository *r, struct commit **head) { struct commit *current_head; struct object_id oid; @@ -1185,10 +1339,10 @@ static int parse_head(struct commit **head) if (get_oid("HEAD", &oid)) { current_head = NULL; } else { - current_head = lookup_commit_reference(the_repository, &oid); + current_head = lookup_commit_reference(r, &oid); if (!current_head) return error(_("could not parse HEAD")); - if (oidcmp(&oid, ¤t_head->object.oid)) { + if (!oideq(&oid, ¤t_head->object.oid)) { warning(_("HEAD %s is not a commit!"), oid_to_hex(&oid)); } @@ -1209,26 +1363,28 @@ static int parse_head(struct commit **head) * 0 - success * 1 - run 'git commit' */ -static int try_to_commit(struct strbuf *msg, const char *author, +static int try_to_commit(struct repository *r, + struct strbuf *msg, const char *author, struct replay_opts *opts, unsigned int flags, struct object_id *oid) { struct object_id tree; - struct commit *current_head; + struct commit *current_head = NULL; struct commit_list *parents = NULL; struct commit_extra_header *extra = NULL; struct strbuf err = STRBUF_INIT; struct strbuf commit_msg = STRBUF_INIT; char *amend_author = NULL; + const char *committer = NULL; const char *hook_commit = NULL; enum commit_msg_cleanup_mode cleanup; int res = 0; - if (parse_head(¤t_head)) + if (parse_head(r, ¤t_head)) return -1; if (flags & AMEND_MSG) { - const char *exclude_gpgsig[] = { "gpgsig", NULL }; + const char *exclude_gpgsig[] = { "gpgsig", "gpgsig-sha256", NULL }; const char *out_enc = get_commit_output_encoding(); const char *message = logmsg_reencode(current_head, NULL, out_enc); @@ -1249,24 +1405,41 @@ static int try_to_commit(struct strbuf *msg, const char *author, } parents = copy_commit_list(current_head->parents); extra = read_commit_extra_headers(current_head, exclude_gpgsig); - } else if (current_head) { + } else if (current_head && + (!(flags & CREATE_ROOT_COMMIT) || (flags & AMEND_MSG))) { commit_list_insert(current_head, &parents); } - if (write_index_as_tree(&tree, &the_index, get_index_file(), 0, NULL)) { + if (write_index_as_tree(&tree, r->index, r->index_file, 0, NULL)) { res = error(_("git write-tree failed to write a tree")); goto out; } - if (!(flags & ALLOW_EMPTY) && !oidcmp(current_head ? - get_commit_tree_oid(current_head) : - the_hash_algo->empty_tree, &tree)) { - res = 1; /* run 'git commit' to display error message */ - goto out; + if (!(flags & ALLOW_EMPTY)) { + struct commit *first_parent = current_head; + + if (flags & AMEND_MSG) { + if (current_head->parents) { + first_parent = current_head->parents->item; + if (repo_parse_commit(r, first_parent)) { + res = error(_("could not parse HEAD commit")); + goto out; + } + } else { + first_parent = NULL; + } + } + if (oideq(first_parent + ? get_commit_tree_oid(first_parent) + : the_hash_algo->empty_tree, + &tree)) { + res = 1; /* run 'git commit' to display error message */ + goto out; + } } if (find_hook("prepare-commit-msg")) { - res = run_prepare_commit_msg_hook(msg, hook_commit); + res = run_prepare_commit_msg_hook(r, msg, hook_commit); if (res) goto out; if (strbuf_read_file(&commit_msg, git_path_commit_editmsg(), @@ -1279,20 +1452,72 @@ static int try_to_commit(struct strbuf *msg, const char *author, msg = &commit_msg; } - cleanup = (flags & CLEANUP_MSG) ? COMMIT_MSG_CLEANUP_ALL : - opts->default_msg_cleanup; + if (flags & CLEANUP_MSG) + cleanup = COMMIT_MSG_CLEANUP_ALL; + else if ((opts->signoff || opts->record_origin) && + !opts->explicit_cleanup) + cleanup = COMMIT_MSG_CLEANUP_SPACE; + else + cleanup = opts->default_msg_cleanup; if (cleanup != COMMIT_MSG_CLEANUP_NONE) strbuf_stripspace(msg, cleanup == COMMIT_MSG_CLEANUP_ALL); - if (!opts->allow_empty_message && message_is_empty(msg, cleanup)) { + if ((flags & EDIT_MSG) && message_is_empty(msg, cleanup)) { res = 1; /* run 'git commit' to display error message */ goto out; } - reset_ident_date(); + if (opts->committer_date_is_author_date) { + struct ident_split id; + struct strbuf date = STRBUF_INIT; + + if (!opts->ignore_date) { + if (split_ident_line(&id, author, (int)strlen(author)) < 0) { + res = error(_("invalid author identity '%s'"), + author); + goto out; + } + if (!id.date_begin) { + res = error(_( + "corrupt author: missing date information")); + goto out; + } + strbuf_addf(&date, "@%.*s %.*s", + (int)(id.date_end - id.date_begin), + id.date_begin, + (int)(id.tz_end - id.tz_begin), + id.tz_begin); + } else { + reset_ident_date(); + } + committer = fmt_ident(getenv("GIT_COMMITTER_NAME"), + getenv("GIT_COMMITTER_EMAIL"), + WANT_COMMITTER_IDENT, + opts->ignore_date ? NULL : date.buf, + IDENT_STRICT); + strbuf_release(&date); + } else { + reset_ident_date(); + } + + if (opts->ignore_date) { + struct ident_split id; + char *name, *email; + + if (split_ident_line(&id, author, strlen(author)) < 0) { + error(_("invalid author identity '%s'"), author); + goto out; + } + name = xmemdupz(id.name_begin, id.name_end - id.name_begin); + email = xmemdupz(id.mail_begin, id.mail_end - id.mail_begin); + author = fmt_ident(name, email, WANT_AUTHOR_IDENT, NULL, + IDENT_STRICT); + free(name); + free(email); + } - if (commit_tree_extended(msg->buf, msg->len, &tree, parents, - oid, author, opts->gpg_sign, extra)) { + if (commit_tree_extended(msg->buf, msg->len, &tree, parents, oid, + author, committer, opts->gpg_sign, extra)) { res = error(_("failed to write commit object")); goto out; } @@ -1303,8 +1528,9 @@ static int try_to_commit(struct strbuf *msg, const char *author, goto out; } + run_commit_hook(0, r->index_file, "post-commit", NULL); if (flags & AMEND_MSG) - commit_post_rewrite(current_head, oid); + commit_post_rewrite(r, current_head, oid); out: free_commit_extra_headers(extra); @@ -1315,13 +1541,23 @@ out: return res; } -static int do_commit(const char *msg_file, const char *author, - struct replay_opts *opts, unsigned int flags) +static int write_rebase_head(struct object_id *oid) +{ + if (update_ref("rebase", "REBASE_HEAD", oid, + NULL, REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR)) + return error(_("could not update %s"), "REBASE_HEAD"); + + return 0; +} + +static int do_commit(struct repository *r, + const char *msg_file, const char *author, + struct replay_opts *opts, unsigned int flags, + struct object_id *oid) { int res = 1; - if (!(flags & EDIT_MSG) && !(flags & VERIFY_MSG) && - !(flags & CREATE_ROOT_COMMIT)) { + if (!(flags & EDIT_MSG) && !(flags & VERIFY_MSG)) { struct object_id oid; struct strbuf sb = STRBUF_INIT; @@ -1330,20 +1566,25 @@ static int do_commit(const char *msg_file, const char *author, "from '%s'"), msg_file); - res = try_to_commit(msg_file ? &sb : NULL, author, opts, flags, - &oid); + res = try_to_commit(r, msg_file ? &sb : NULL, + author, opts, flags, &oid); strbuf_release(&sb); if (!res) { - unlink(git_path_cherry_pick_head(the_repository)); - unlink(git_path_merge_msg(the_repository)); + refs_delete_ref(get_main_ref_store(r), "", + "CHERRY_PICK_HEAD", NULL, 0); + unlink(git_path_merge_msg(r)); if (!is_rebase_i(opts)) - print_commit_summary(NULL, &oid, + print_commit_summary(r, NULL, &oid, SUMMARY_SHOW_AUTHOR_DATE); return res; } } - if (res == 1) + if (res == 1) { + if (is_rebase_i(opts) && oid) + if (write_rebase_head(oid)) + return -1; return run_git_commit(msg_file, opts, flags); + } return res; } @@ -1365,30 +1606,39 @@ static int is_original_commit_empty(struct commit *commit) ptree_oid = the_hash_algo->empty_tree; /* commit is root */ } - return !oidcmp(ptree_oid, get_commit_tree_oid(commit)); + return oideq(ptree_oid, get_commit_tree_oid(commit)); } /* - * Do we run "git commit" with "--allow-empty"? + * Should empty commits be allowed? Return status: + * <0: Error in is_index_unchanged(r) or is_original_commit_empty(commit) + * 0: Halt on empty commit + * 1: Allow empty commit + * 2: Drop empty commit */ -static int allow_empty(struct replay_opts *opts, struct commit *commit) +static int allow_empty(struct repository *r, + struct replay_opts *opts, + struct commit *commit) { - int index_unchanged, empty_commit; + int index_unchanged, originally_empty; /* - * Three cases: + * Four cases: * * (1) we do not allow empty at all and error out. * - * (2) we allow ones that were initially empty, but - * forbid the ones that become empty; + * (2) we allow ones that were initially empty, and + * just drop the ones that become empty + * + * (3) we allow ones that were initially empty, but + * halt for the ones that become empty; * - * (3) we allow both. + * (4) we allow both. */ if (!opts->allow_empty) return 0; /* let "git commit" barf as necessary */ - index_unchanged = is_index_unchanged(); + index_unchanged = is_index_unchanged(r); if (index_unchanged < 0) return index_unchanged; if (!index_unchanged) @@ -1397,40 +1647,17 @@ static int allow_empty(struct replay_opts *opts, struct commit *commit) if (opts->keep_redundant_commits) return 1; - empty_commit = is_original_commit_empty(commit); - if (empty_commit < 0) - return empty_commit; - if (!empty_commit) - return 0; - else + originally_empty = is_original_commit_empty(commit); + if (originally_empty < 0) + return originally_empty; + if (originally_empty) return 1; + else if (opts->drop_redundant_commits) + return 2; + else + return 0; } -/* - * Note that ordering matters in this enum. Not only must it match the mapping - * below, it is also divided into several sections that matter. When adding - * new commands, make sure you add it in the right section. - */ -enum todo_command { - /* commands that handle commits */ - TODO_PICK = 0, - TODO_REVERT, - TODO_EDIT, - TODO_REWORD, - TODO_FIXUP, - TODO_SQUASH, - /* commands that do something else than handling a single commit */ - TODO_EXEC, - TODO_LABEL, - TODO_RESET, - TODO_MERGE, - /* commands that do nothing but are counted for reporting progress */ - TODO_NOOP, - TODO_DROP, - /* comments (not counted for reporting progress) */ - TODO_COMMENT -}; - static struct { char c; const char *str; @@ -1442,6 +1669,7 @@ static struct { { 'f', "fixup" }, { 's', "squash" }, { 'x', "exec" }, + { 'b', "break" }, { 'l', "label" }, { 't', "reset" }, { 'm', "merge" }, @@ -1459,7 +1687,7 @@ static const char *command_to_string(const enum todo_command command) static char command_to_char(const enum todo_command command) { - if (command < TODO_COMMENT && todo_command_info[command].c) + if (command < TODO_COMMENT) return todo_command_info[command].c; return comment_line_char; } @@ -1490,12 +1718,15 @@ static int is_pick_or_similar(enum todo_command command) } } -static int update_squash_messages(enum todo_command command, - struct commit *commit, struct replay_opts *opts) +static int update_squash_messages(struct repository *r, + enum todo_command command, + struct commit *commit, + struct replay_opts *opts) { struct strbuf buf = STRBUF_INIT; int res; const char *message, *body; + const char *encoding = get_commit_output_encoding(); if (opts->current_fixup_count > 0) { struct strbuf header = STRBUF_INIT; @@ -1520,9 +1751,9 @@ static int update_squash_messages(enum todo_command command, if (get_oid("HEAD", &head)) return error(_("need a HEAD to fixup")); - if (!(head_commit = lookup_commit_reference(the_repository, &head))) + if (!(head_commit = lookup_commit_reference(r, &head))) return error(_("could not read HEAD")); - if (!(head_message = get_commit_buffer(head_commit, NULL))) + if (!(head_message = logmsg_reencode(head_commit, NULL, encoding))) return error(_("could not read HEAD's commit message")); find_commit_subject(head_message, &body); @@ -1543,7 +1774,7 @@ static int update_squash_messages(enum todo_command command, unuse_commit_buffer(head_commit, head_message); } - if (!(message = get_commit_buffer(commit, NULL))) + if (!(message = logmsg_reencode(commit, NULL, encoding))) return error(_("could not read commit message of %s"), oid_to_hex(&commit->object.oid)); find_commit_subject(message, &body); @@ -1581,7 +1812,8 @@ static int update_squash_messages(enum todo_command command, return res; } -static void flush_rewritten_pending(void) { +static void flush_rewritten_pending(void) +{ struct strbuf buf = STRBUF_INIT; struct object_id newoid; FILE *out; @@ -1606,7 +1838,8 @@ static void flush_rewritten_pending(void) { } static void record_in_rewritten(struct object_id *oid, - enum todo_command next_command) { + enum todo_command next_command) +{ FILE *out = fopen_or_warn(rebase_path_rewritten_pending(), "a"); if (!out) @@ -1619,18 +1852,21 @@ static void record_in_rewritten(struct object_id *oid, flush_rewritten_pending(); } -static int do_pick_commit(enum todo_command command, struct commit *commit, - struct replay_opts *opts, int final_fixup) +static int do_pick_commit(struct repository *r, + enum todo_command command, + struct commit *commit, + struct replay_opts *opts, + int final_fixup, int *check_todo) { unsigned int flags = opts->edit ? EDIT_MSG : 0; - const char *msg_file = opts->edit ? NULL : git_path_merge_msg(the_repository); + const char *msg_file = opts->edit ? NULL : git_path_merge_msg(r); struct object_id head; struct commit *base, *next, *parent; const char *base_label, *next_label; char *author = NULL; struct commit_message msg = { NULL, NULL, NULL, NULL }; struct strbuf msgbuf = STRBUF_INIT; - int res, unborn = 0, allow; + int res, unborn = 0, reword = 0, allow, drop_commit; if (opts->no_commit) { /* @@ -1639,24 +1875,24 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, * that represents the "current" state for merge-recursive * to work on. */ - if (write_index_as_tree(&head, &the_index, get_index_file(), 0, NULL)) + if (write_index_as_tree(&head, r->index, r->index_file, 0, NULL)) return error(_("your index file is unmerged.")); } else { unborn = get_oid("HEAD", &head); /* Do we want to generate a root commit? */ if (is_pick_or_similar(command) && opts->have_squash_onto && - !oidcmp(&head, &opts->squash_onto)) { + oideq(&head, &opts->squash_onto)) { if (is_fixup(command)) return error(_("cannot fixup root commit")); flags |= CREATE_ROOT_COMMIT; unborn = 1; } else if (unborn) oidcpy(&head, the_hash_algo->empty_tree); - if (index_differs_from(unborn ? empty_tree_oid_hex() : "HEAD", + if (index_differs_from(r, unborn ? empty_tree_oid_hex() : "HEAD", NULL, 0)) - return error_dirty_index(opts); + return error_dirty_index(r, opts); } - discard_cache(); + discard_index(r->index); if (!commit->parents) parent = NULL; @@ -1677,9 +1913,13 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, return error(_("commit %s does not have parent %d"), oid_to_hex(&commit->object.oid), opts->mainline); parent = p->item; - } else if (0 < opts->mainline) - return error(_("mainline was specified but commit %s is not a merge."), - oid_to_hex(&commit->object.oid)); + } else if (1 < opts->mainline) + /* + * Non-first parent explicitly specified as mainline for + * non-merge commit + */ + return error(_("commit %s does not have parent %d"), + oid_to_hex(&commit->object.oid), opts->mainline); else parent = commit->parents->item; @@ -1688,15 +1928,15 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, oid_to_hex(&commit->object.oid)); if (opts->allow_ff && !is_fixup(command) && - ((parent && !oidcmp(&parent->object.oid, &head)) || + ((parent && oideq(&parent->object.oid, &head)) || (!parent && unborn))) { if (is_rebase_i(opts)) write_author_script(msg.message); - res = fast_forward_to(&commit->object.oid, &head, unborn, + res = fast_forward_to(r, &commit->object.oid, &head, unborn, opts); if (res || command != TODO_REWORD) goto leave; - flags |= EDIT_MSG | AMEND_MSG | VERIFY_MSG; + reword = 1; msg_file = NULL; goto fast_forward_edit; } @@ -1754,9 +1994,9 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, } if (command == TODO_REWORD) - flags |= EDIT_MSG | VERIFY_MSG; + reword = 1; else if (is_fixup(command)) { - if (update_squash_messages(command, commit, opts)) + if (update_squash_messages(r, command, commit, opts)) return -1; flags |= AMEND_MSG; if (!final_fixup) @@ -1765,12 +2005,12 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, flags |= CLEANUP_MSG; msg_file = rebase_path_fixup_msg(); } else { - const char *dest = git_path_squash_msg(the_repository); + const char *dest = git_path_squash_msg(r); unlink(dest); if (copy_file(dest, rebase_path_squash_msg(), 0666)) return error(_("could not rename '%s' to '%s'"), rebase_path_squash_msg(), dest); - unlink(git_path_merge_msg(the_repository)); + unlink(git_path_merge_msg(r)); msg_file = dest; flags |= EDIT_MSG; } @@ -1781,24 +2021,27 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, if (is_rebase_i(opts) && write_author_script(msg.message) < 0) res = -1; - else if (!opts->strategy || !strcmp(opts->strategy, "recursive") || command == TODO_REVERT) { - res = do_recursive_merge(base, next, base_label, next_label, + else if (!opts->strategy || + !strcmp(opts->strategy, "recursive") || + !strcmp(opts->strategy, "ort") || + command == TODO_REVERT) { + res = do_recursive_merge(r, base, next, base_label, next_label, &head, &msgbuf, opts); if (res < 0) goto leave; res |= write_message(msgbuf.buf, msgbuf.len, - git_path_merge_msg(the_repository), 0); + git_path_merge_msg(r), 0); } else { struct commit_list *common = NULL; struct commit_list *remotes = NULL; res = write_message(msgbuf.buf, msgbuf.len, - git_path_merge_msg(the_repository), 0); + git_path_merge_msg(r), 0); commit_list_insert(base, &common); commit_list_insert(next, &remotes); - res |= try_merge_command(opts->strategy, + res |= try_merge_command(r, opts->strategy, opts->xopts_nr, (const char **)opts->xopts, common, oid_to_hex(&head), remotes); free_commit_list(common); @@ -1812,7 +2055,9 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, * However, if the merge did not even start, then we don't want to * write it at all. */ - if (command == TODO_PICK && !opts->no_commit && (res == 0 || res == 1) && + if ((command == TODO_PICK || command == TODO_REWORD || + command == TODO_EDIT) && !opts->no_commit && + (res == 0 || res == 1) && update_ref(NULL, "CHERRY_PICK_HEAD", &commit->object.oid, NULL, REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR)) res = -1; @@ -1826,25 +2071,44 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, ? _("could not revert %s... %s") : _("could not apply %s... %s"), short_commit_name(commit), msg.subject); - print_advice(res == 1, opts); - rerere(opts->allow_rerere_auto); + print_advice(r, res == 1, opts); + repo_rerere(r, opts->allow_rerere_auto); goto leave; } - allow = allow_empty(opts, commit); + drop_commit = 0; + allow = allow_empty(r, opts, commit); if (allow < 0) { res = allow; goto leave; - } else if (allow) + } else if (allow == 1) { flags |= ALLOW_EMPTY; - if (!opts->no_commit) { -fast_forward_edit: + } else if (allow == 2) { + drop_commit = 1; + refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD", + NULL, 0); + unlink(git_path_merge_msg(r)); + fprintf(stderr, + _("dropping %s %s -- patch contents already upstream\n"), + oid_to_hex(&commit->object.oid), msg.subject); + } /* else allow == 0 and there's nothing special to do */ + if (!opts->no_commit && !drop_commit) { if (author || command == TODO_REVERT || (flags & AMEND_MSG)) - res = do_commit(msg_file, author, opts, flags); + res = do_commit(r, msg_file, author, opts, flags, + commit? &commit->object.oid : NULL); else res = error(_("unable to parse commit author")); + *check_todo = !!(flags & EDIT_MSG); + if (!res && reword) { +fast_forward_edit: + res = run_git_commit(NULL, opts, EDIT_MSG | + VERIFY_MSG | AMEND_MSG | + (flags & ALLOW_EMPTY)); + *check_todo = 1; + } } + if (!res && final_fixup) { unlink(rebase_path_fixup_msg()); unlink(rebase_path_squash_msg()); @@ -1876,18 +2140,19 @@ static int prepare_revs(struct replay_opts *opts) return 0; } -static int read_and_refresh_cache(struct replay_opts *opts) +static int read_and_refresh_cache(struct repository *r, + struct replay_opts *opts) { struct lock_file index_lock = LOCK_INIT; - int index_fd = hold_locked_index(&index_lock, 0); - if (read_index_preload(&the_index, NULL) < 0) { + int index_fd = repo_hold_locked_index(r, &index_lock, 0); + if (repo_read_index(r) < 0) { rollback_lock_file(&index_lock); return error(_("git %s: failed to read the index"), _(action_name(opts))); } - refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL); + refresh_index(r->index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL); if (index_fd >= 0) { - if (write_locked_index(&the_index, &index_lock, + if (write_locked_index(r->index, &index_lock, COMMIT_LOCK | SKIP_IF_UNCHANGED)) { return error(_("git %s: failed to refresh the index"), _(action_name(opts))); @@ -1900,26 +2165,7 @@ enum todo_item_flags { TODO_EDIT_MERGE_MSG = 1 }; -struct todo_item { - enum todo_command command; - struct commit *commit; - unsigned int flags; - const char *arg; - int arg_len; - size_t offset_in_buf; -}; - -struct todo_list { - struct strbuf buf; - struct todo_item *items; - int nr, alloc, current; - int done_nr, total_nr; - struct stat_data stat; -}; - -#define TODO_LIST_INIT { STRBUF_INIT } - -static void todo_list_release(struct todo_list *todo_list) +void todo_list_release(struct todo_list *todo_list) { strbuf_release(&todo_list->buf); FREE_AND_NULL(todo_list->items); @@ -1929,10 +2175,30 @@ static void todo_list_release(struct todo_list *todo_list) static struct todo_item *append_new_todo(struct todo_list *todo_list) { ALLOC_GROW(todo_list->items, todo_list->nr + 1, todo_list->alloc); + todo_list->total_nr++; return todo_list->items + todo_list->nr++; } -static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) +const char *todo_item_get_arg(struct todo_list *todo_list, + struct todo_item *item) +{ + return todo_list->buf.buf + item->arg_offset; +} + +static int is_command(enum todo_command command, const char **bol) +{ + const char *str = todo_command_info[command].str; + const char nick = todo_command_info[command].c; + const char *p = *bol + 1; + + return skip_prefix(*bol, str, bol) || + ((nick && **bol == nick) && + (*p == ' ' || *p == '\t' || *p == '\n' || *p == '\r' || !*p) && + (*bol = p)); +} + +static int parse_insn_line(struct repository *r, struct todo_item *item, + const char *buf, const char *bol, char *eol) { struct object_id commit_oid; char *end_of_object_name; @@ -1946,17 +2212,13 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) if (bol == eol || *bol == '\r' || *bol == comment_line_char) { item->command = TODO_COMMENT; item->commit = NULL; - item->arg = bol; + item->arg_offset = bol - buf; item->arg_len = eol - bol; return 0; } for (i = 0; i < TODO_COMMENT; i++) - if (skip_prefix(bol, todo_command_info[i].str, &bol)) { - item->command = i; - break; - } else if (bol[1] == ' ' && *bol == todo_command_info[i].c) { - bol++; + if (is_command(i, &bol)) { item->command = i; break; } @@ -1967,12 +2229,12 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) padding = strspn(bol, " \t"); bol += padding; - if (item->command == TODO_NOOP) { + if (item->command == TODO_NOOP || item->command == TODO_BREAK) { if (bol != eol) return error(_("%s does not accept arguments: '%s'"), command_to_string(item->command), bol); item->commit = NULL; - item->arg = bol; + item->arg_offset = bol - buf; item->arg_len = eol - bol; return 0; } @@ -1984,7 +2246,7 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) if (item->command == TODO_EXEC || item->command == TODO_LABEL || item->command == TODO_RESET) { item->commit = NULL; - item->arg = bol; + item->arg_offset = bol - buf; item->arg_len = (int)(eol - bol); return 0; } @@ -1998,7 +2260,7 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) } else { item->flags |= TODO_EDIT_MERGE_MSG; item->commit = NULL; - item->arg = bol; + item->arg_offset = bol - buf; item->arg_len = (int)(eol - bol); return 0; } @@ -2008,24 +2270,57 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) saved = *end_of_object_name; *end_of_object_name = '\0'; status = get_oid(bol, &commit_oid); + if (status < 0) + error(_("could not parse '%s'"), bol); /* return later */ *end_of_object_name = saved; - item->arg = end_of_object_name + strspn(end_of_object_name, " \t"); - item->arg_len = (int)(eol - item->arg); + bol = end_of_object_name + strspn(end_of_object_name, " \t"); + item->arg_offset = bol - buf; + item->arg_len = (int)(eol - bol); if (status < 0) - return -1; + return status; - item->commit = lookup_commit_reference(the_repository, &commit_oid); - return !item->commit; + item->commit = lookup_commit_reference(r, &commit_oid); + return item->commit ? 0 : -1; } -static int parse_insn_buffer(char *buf, struct todo_list *todo_list) +int sequencer_get_last_command(struct repository *r, enum replay_action *action) +{ + const char *todo_file, *bol; + struct strbuf buf = STRBUF_INIT; + int ret = 0; + + todo_file = git_path_todo_file(); + if (strbuf_read_file(&buf, todo_file, 0) < 0) { + if (errno == ENOENT || errno == ENOTDIR) + return -1; + else + return error_errno("unable to open '%s'", todo_file); + } + bol = buf.buf + strspn(buf.buf, " \t\r\n"); + if (is_command(TODO_PICK, &bol) && (*bol == ' ' || *bol == '\t')) + *action = REPLAY_PICK; + else if (is_command(TODO_REVERT, &bol) && + (*bol == ' ' || *bol == '\t')) + *action = REPLAY_REVERT; + else + ret = -1; + + strbuf_release(&buf); + + return ret; +} + +int todo_list_parse_insn_buffer(struct repository *r, char *buf, + struct todo_list *todo_list) { struct todo_item *item; char *p = buf, *next_p; int i, res = 0, fixup_okay = file_exists(rebase_path_done()); + todo_list->current = todo_list->nr = 0; + for (i = 1; *p; i++, p = next_p) { char *eol = strchrnul(p, '\n'); @@ -2036,10 +2331,13 @@ static int parse_insn_buffer(char *buf, struct todo_list *todo_list) item = append_new_todo(todo_list); item->offset_in_buf = p - todo_list->buf.buf; - if (parse_insn_line(item, p, eol)) { + if (parse_insn_line(r, item, buf, p, eol)) { res = error(_("invalid line %d: %.*s"), i, (int)(eol - p), p); - item->command = TODO_NOOP; + item->command = TODO_COMMENT + 1; + item->arg_offset = p - buf; + item->arg_len = (int)(eol - p); + item->commit = NULL; } if (fixup_okay) @@ -2097,8 +2395,76 @@ static ssize_t strbuf_read_file_or_whine(struct strbuf *sb, const char *path) return len; } -static int read_populate_todo(struct todo_list *todo_list, - struct replay_opts *opts) +static int have_finished_the_last_pick(void) +{ + struct strbuf buf = STRBUF_INIT; + const char *eol; + const char *todo_path = git_path_todo_file(); + int ret = 0; + + if (strbuf_read_file(&buf, todo_path, 0) < 0) { + if (errno == ENOENT) { + return 0; + } else { + error_errno("unable to open '%s'", todo_path); + return 0; + } + } + /* If there is only one line then we are done */ + eol = strchr(buf.buf, '\n'); + if (!eol || !eol[1]) + ret = 1; + + strbuf_release(&buf); + + return ret; +} + +void sequencer_post_commit_cleanup(struct repository *r, int verbose) +{ + struct replay_opts opts = REPLAY_OPTS_INIT; + int need_cleanup = 0; + + if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD")) { + if (!refs_delete_ref(get_main_ref_store(r), "", + "CHERRY_PICK_HEAD", NULL, 0) && + verbose) + warning(_("cancelling a cherry picking in progress")); + opts.action = REPLAY_PICK; + need_cleanup = 1; + } + + if (refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) { + if (!refs_delete_ref(get_main_ref_store(r), "", "REVERT_HEAD", + NULL, 0) && + verbose) + warning(_("cancelling a revert in progress")); + opts.action = REPLAY_REVERT; + need_cleanup = 1; + } + + if (!need_cleanup) + return; + + if (!have_finished_the_last_pick()) + return; + + sequencer_remove_state(&opts); +} + +static void todo_list_write_total_nr(struct todo_list *todo_list) +{ + FILE *f = fopen_or_warn(rebase_path_msgtotal(), "w"); + + if (f) { + fprintf(f, "%d\n", todo_list->total_nr); + fclose(f); + } +} + +static int read_populate_todo(struct repository *r, + struct todo_list *todo_list, + struct replay_opts *opts) { struct stat st; const char *todo_file = get_todo_path(opts); @@ -2113,7 +2479,7 @@ static int read_populate_todo(struct todo_list *todo_list, return error(_("could not stat '%s'"), todo_file); fill_stat_data(&todo_list->stat, &st); - res = parse_insn_buffer(todo_list->buf.buf, todo_list); + res = todo_list_parse_insn_buffer(r, todo_list->buf.buf, todo_list); if (res) { if (is_rebase_i(opts)) return error(_("please fix this using " @@ -2141,10 +2507,9 @@ static int read_populate_todo(struct todo_list *todo_list, if (is_rebase_i(opts)) { struct todo_list done = TODO_LIST_INIT; - FILE *f = fopen_or_warn(rebase_path_msgtotal(), "w"); if (strbuf_read_file(&done.buf, rebase_path_done(), 0) > 0 && - !parse_insn_buffer(done.buf.buf, &done)) + !todo_list_parse_insn_buffer(r, done.buf.buf, &done)) todo_list->done_nr = count_commands(&done); else todo_list->done_nr = 0; @@ -2153,10 +2518,7 @@ static int read_populate_todo(struct todo_list *todo_list, + count_commands(todo_list); todo_list_release(&done); - if (f) { - fprintf(f, "%d\n", todo_list->total_nr); - fclose(f); - } + todo_list_write_total_nr(todo_list); } return 0; @@ -2183,6 +2545,15 @@ static int populate_opts_cb(const char *key, const char *value, void *data) opts->no_commit = git_config_bool_or_int(key, value, &error_flag); else if (!strcmp(key, "options.edit")) opts->edit = git_config_bool_or_int(key, value, &error_flag); + else if (!strcmp(key, "options.allow-empty")) + opts->allow_empty = + git_config_bool_or_int(key, value, &error_flag); + else if (!strcmp(key, "options.allow-empty-message")) + opts->allow_empty_message = + git_config_bool_or_int(key, value, &error_flag); + else if (!strcmp(key, "options.keep-redundant-commits")) + opts->keep_redundant_commits = + git_config_bool_or_int(key, value, &error_flag); else if (!strcmp(key, "options.signoff")) opts->signoff = git_config_bool_or_int(key, value, &error_flag); else if (!strcmp(key, "options.record-origin")) @@ -2202,7 +2573,10 @@ static int populate_opts_cb(const char *key, const char *value, void *data) opts->allow_rerere_auto = git_config_bool_or_int(key, value, &error_flag) ? RERERE_AUTOUPDATE : RERERE_NOAUTOUPDATE; - else + else if (!strcmp(key, "options.default-msg-cleanup")) { + opts->explicit_cleanup = 1; + opts->default_msg_cleanup = get_cleanup_mode(value, 1); + } else return error(_("invalid key: %s"), key); if (!error_flag) @@ -2211,21 +2585,14 @@ static int populate_opts_cb(const char *key, const char *value, void *data) return 0; } -static void read_strategy_opts(struct replay_opts *opts, struct strbuf *buf) +void parse_strategy_opts(struct replay_opts *opts, char *raw_opts) { int i; - char *strategy_opts_string; + char *strategy_opts_string = raw_opts; - strbuf_reset(buf); - if (!read_oneliner(buf, rebase_path_strategy(), 0)) - return; - opts->strategy = strbuf_detach(buf, NULL); - if (!read_oneliner(buf, rebase_path_strategy_opts(), 0)) - return; - - strategy_opts_string = buf->buf; if (*strategy_opts_string == ' ') strategy_opts_string++; + opts->xopts_nr = split_cmdline(strategy_opts_string, (const char ***)&opts->xopts); for (i = 0; i < opts->xopts_nr; i++) { @@ -2236,12 +2603,26 @@ static void read_strategy_opts(struct replay_opts *opts, struct strbuf *buf) } } +static void read_strategy_opts(struct replay_opts *opts, struct strbuf *buf) +{ + strbuf_reset(buf); + if (!read_oneliner(buf, rebase_path_strategy(), 0)) + return; + opts->strategy = strbuf_detach(buf, NULL); + if (!read_oneliner(buf, rebase_path_strategy_opts(), 0)) + return; + + parse_strategy_opts(opts, buf->buf); +} + static int read_populate_opts(struct replay_opts *opts) { if (is_rebase_i(opts)) { struct strbuf buf = STRBUF_INIT; + int ret = 0; - if (read_oneliner(&buf, rebase_path_gpg_sign_opt(), 1)) { + if (read_oneliner(&buf, rebase_path_gpg_sign_opt(), + READ_ONELINER_SKIP_IF_EMPTY)) { if (!starts_with(buf.buf, "-S")) strbuf_reset(&buf); else { @@ -2251,7 +2632,8 @@ static int read_populate_opts(struct replay_opts *opts) strbuf_reset(&buf); } - if (read_oneliner(&buf, rebase_path_allow_rerere_autoupdate(), 1)) { + if (read_oneliner(&buf, rebase_path_allow_rerere_autoupdate(), + READ_ONELINER_SKIP_IF_EMPTY)) { if (!strcmp(buf.buf, "--rerere-autoupdate")) opts->allow_rerere_auto = RERERE_AUTOUPDATE; else if (!strcmp(buf.buf, "--no-rerere-autoupdate")) @@ -2262,16 +2644,39 @@ static int read_populate_opts(struct replay_opts *opts) if (file_exists(rebase_path_verbose())) opts->verbose = 1; + if (file_exists(rebase_path_quiet())) + opts->quiet = 1; + if (file_exists(rebase_path_signoff())) { opts->allow_ff = 0; opts->signoff = 1; } + if (file_exists(rebase_path_cdate_is_adate())) { + opts->allow_ff = 0; + opts->committer_date_is_author_date = 1; + } + + if (file_exists(rebase_path_ignore_date())) { + opts->allow_ff = 0; + opts->ignore_date = 1; + } + + if (file_exists(rebase_path_reschedule_failed_exec())) + opts->reschedule_failed_exec = 1; + + if (file_exists(rebase_path_drop_redundant_commits())) + opts->drop_redundant_commits = 1; + + if (file_exists(rebase_path_keep_redundant_commits())) + opts->keep_redundant_commits = 1; + read_strategy_opts(opts, &buf); - strbuf_release(&buf); + strbuf_reset(&buf); if (read_oneliner(&opts->current_fixups, - rebase_path_current_fixups(), 1)) { + rebase_path_current_fixups(), + READ_ONELINER_SKIP_IF_EMPTY)) { const char *p = opts->current_fixups.buf; opts->current_fixup_count = 1; while ((p = strchr(p, '\n'))) { @@ -2281,12 +2686,16 @@ static int read_populate_opts(struct replay_opts *opts) } if (read_oneliner(&buf, rebase_path_squash_onto(), 0)) { - if (get_oid_hex(buf.buf, &opts->squash_onto) < 0) - return error(_("unusable squash-onto")); + if (get_oid_committish(buf.buf, &opts->squash_onto) < 0) { + ret = error(_("unusable squash-onto")); + goto done_rebase_i; + } opts->have_squash_onto = 1; } - return 0; +done_rebase_i: + strbuf_release(&buf); + return ret; } if (!file_exists(git_path_opts_file())) @@ -2303,26 +2712,85 @@ static int read_populate_opts(struct replay_opts *opts) return 0; } +static void write_strategy_opts(struct replay_opts *opts) +{ + int i; + struct strbuf buf = STRBUF_INIT; + + for (i = 0; i < opts->xopts_nr; ++i) + strbuf_addf(&buf, " --%s", opts->xopts[i]); + + write_file(rebase_path_strategy_opts(), "%s\n", buf.buf); + strbuf_release(&buf); +} + +int write_basic_state(struct replay_opts *opts, const char *head_name, + struct commit *onto, const struct object_id *orig_head) +{ + if (head_name) + write_file(rebase_path_head_name(), "%s\n", head_name); + if (onto) + write_file(rebase_path_onto(), "%s\n", + oid_to_hex(&onto->object.oid)); + if (orig_head) + write_file(rebase_path_orig_head(), "%s\n", + oid_to_hex(orig_head)); + + if (opts->quiet) + write_file(rebase_path_quiet(), "%s", ""); + if (opts->verbose) + write_file(rebase_path_verbose(), "%s", ""); + if (opts->strategy) + write_file(rebase_path_strategy(), "%s\n", opts->strategy); + if (opts->xopts_nr > 0) + write_strategy_opts(opts); + + if (opts->allow_rerere_auto == RERERE_AUTOUPDATE) + write_file(rebase_path_allow_rerere_autoupdate(), "--rerere-autoupdate\n"); + else if (opts->allow_rerere_auto == RERERE_NOAUTOUPDATE) + write_file(rebase_path_allow_rerere_autoupdate(), "--no-rerere-autoupdate\n"); + + if (opts->gpg_sign) + write_file(rebase_path_gpg_sign_opt(), "-S%s\n", opts->gpg_sign); + if (opts->signoff) + write_file(rebase_path_signoff(), "--signoff\n"); + if (opts->drop_redundant_commits) + write_file(rebase_path_drop_redundant_commits(), "%s", ""); + if (opts->keep_redundant_commits) + write_file(rebase_path_keep_redundant_commits(), "%s", ""); + if (opts->committer_date_is_author_date) + write_file(rebase_path_cdate_is_adate(), "%s", ""); + if (opts->ignore_date) + write_file(rebase_path_ignore_date(), "%s", ""); + if (opts->reschedule_failed_exec) + write_file(rebase_path_reschedule_failed_exec(), "%s", ""); + + return 0; +} + static int walk_revs_populate_todo(struct todo_list *todo_list, struct replay_opts *opts) { enum todo_command command = opts->action == REPLAY_PICK ? TODO_PICK : TODO_REVERT; const char *command_string = todo_command_info[command].str; + const char *encoding; struct commit *commit; if (prepare_revs(opts)) return -1; + encoding = get_log_output_encoding(); + while ((commit = get_revision(opts->revs))) { struct todo_item *item = append_new_todo(todo_list); - const char *commit_buffer = get_commit_buffer(commit, NULL); + const char *commit_buffer = logmsg_reencode(commit, NULL, encoding); const char *subject; int subject_len; item->command = command; item->commit = commit; - item->arg = NULL; + item->arg_offset = 0; item->arg_len = 0; item->offset_in_buf = todo_list->buf.len; subject_len = find_commit_subject(commit_buffer, &subject); @@ -2337,15 +2805,42 @@ static int walk_revs_populate_todo(struct todo_list *todo_list, return 0; } -static int create_seq_dir(void) +static int create_seq_dir(struct repository *r) { - if (file_exists(git_path_seq_dir())) { - error(_("a cherry-pick or revert is already in progress")); - advise(_("try \"git cherry-pick (--continue | --quit | --abort)\"")); + enum replay_action action; + const char *in_progress_error = NULL; + const char *in_progress_advice = NULL; + unsigned int advise_skip = + refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD") || + refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD"); + + if (!sequencer_get_last_command(r, &action)) { + switch (action) { + case REPLAY_REVERT: + in_progress_error = _("revert is already in progress"); + in_progress_advice = + _("try \"git revert (--continue | %s--abort | --quit)\""); + break; + case REPLAY_PICK: + in_progress_error = _("cherry-pick is already in progress"); + in_progress_advice = + _("try \"git cherry-pick (--continue | %s--abort | --quit)\""); + break; + default: + BUG("unexpected action in create_seq_dir"); + } + } + if (in_progress_error) { + error("%s", in_progress_error); + if (advice_sequencer_in_use) + advise(in_progress_advice, + advise_skip ? "--skip | " : ""); return -1; - } else if (mkdir(git_path_seq_dir(), 0777) < 0) + } + if (mkdir(git_path_seq_dir(), 0777) < 0) return error_errno(_("could not create sequencer directory '%s'"), git_path_seq_dir()); + return 0; } @@ -2393,35 +2888,49 @@ static int rollback_is_safe(void) if (get_oid("HEAD", &actual_head)) oidclr(&actual_head); - return !oidcmp(&actual_head, &expected_head); + return oideq(&actual_head, &expected_head); } -static int reset_for_rollback(const struct object_id *oid) +static int reset_merge(const struct object_id *oid) { - const char *argv[4]; /* reset --merge <arg> + NULL */ + int ret; + struct strvec argv = STRVEC_INIT; - argv[0] = "reset"; - argv[1] = "--merge"; - argv[2] = oid_to_hex(oid); - argv[3] = NULL; - return run_command_v_opt(argv, RUN_GIT_CMD); + strvec_pushl(&argv, "reset", "--merge", NULL); + + if (!is_null_oid(oid)) + strvec_push(&argv, oid_to_hex(oid)); + + ret = run_command_v_opt(argv.v, RUN_GIT_CMD); + strvec_clear(&argv); + + return ret; } -static int rollback_single_pick(void) +static int rollback_single_pick(struct repository *r) { struct object_id head_oid; - if (!file_exists(git_path_cherry_pick_head(the_repository)) && - !file_exists(git_path_revert_head(the_repository))) + if (!refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") && + !refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) return error(_("no cherry-pick or revert in progress")); if (read_ref_full("HEAD", 0, &head_oid, NULL)) return error(_("cannot resolve HEAD")); if (is_null_oid(&head_oid)) return error(_("cannot abort from a branch yet to be born")); - return reset_for_rollback(&head_oid); + return reset_merge(&head_oid); } -int sequencer_rollback(struct replay_opts *opts) +static int skip_single_pick(void) +{ + struct object_id head; + + if (read_ref_full("HEAD", 0, &head, NULL)) + return error(_("cannot resolve HEAD")); + return reset_merge(&head); +} + +int sequencer_rollback(struct repository *r, struct replay_opts *opts) { FILE *f; struct object_id oid; @@ -2435,7 +2944,7 @@ int sequencer_rollback(struct replay_opts *opts) * If CHERRY_PICK_HEAD or REVERT_HEAD indicates * a single-cherry-pick in progress, abort that. */ - return rollback_single_pick(); + return rollback_single_pick(r); } if (!f) return error_errno(_("cannot open '%s'"), git_path_head_file()); @@ -2461,7 +2970,7 @@ int sequencer_rollback(struct replay_opts *opts) warning(_("You seem to have moved HEAD. " "Not rewinding, check your HEAD!")); } else - if (reset_for_rollback(&oid)) + if (reset_merge(&oid)) goto fail; strbuf_release(&buf); return sequencer_remove_state(opts); @@ -2470,6 +2979,71 @@ fail: return -1; } +int sequencer_skip(struct repository *r, struct replay_opts *opts) +{ + enum replay_action action = -1; + sequencer_get_last_command(r, &action); + + /* + * Check whether the subcommand requested to skip the commit is actually + * in progress and that it's safe to skip the commit. + * + * opts->action tells us which subcommand requested to skip the commit. + * If the corresponding .git/<ACTION>_HEAD exists, we know that the + * action is in progress and we can skip the commit. + * + * Otherwise we check that the last instruction was related to the + * particular subcommand we're trying to execute and barf if that's not + * the case. + * + * Finally we check that the rollback is "safe", i.e., has the HEAD + * moved? In this case, it doesn't make sense to "reset the merge" and + * "skip the commit" as the user already handled this by committing. But + * we'd not want to barf here, instead give advice on how to proceed. We + * only need to check that when .git/<ACTION>_HEAD doesn't exist because + * it gets removed when the user commits, so if it still exists we're + * sure the user can't have committed before. + */ + switch (opts->action) { + case REPLAY_REVERT: + if (!refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) { + if (action != REPLAY_REVERT) + return error(_("no revert in progress")); + if (!rollback_is_safe()) + goto give_advice; + } + break; + case REPLAY_PICK: + if (!refs_ref_exists(get_main_ref_store(r), + "CHERRY_PICK_HEAD")) { + if (action != REPLAY_PICK) + return error(_("no cherry-pick in progress")); + if (!rollback_is_safe()) + goto give_advice; + } + break; + default: + BUG("unexpected action in sequencer_skip"); + } + + if (skip_single_pick()) + return error(_("failed to skip the commit")); + if (!is_directory(git_path_seq_dir())) + return 0; + + return sequencer_continue(r, opts); + +give_advice: + error(_("there is nothing to skip")); + + if (advice_resolve_conflict) { + advise(_("have you committed already?\n" + "try \"git %s --continue\""), + action == REPLAY_REVERT ? "revert" : "cherry-pick"); + } + return -1; +} + static int save_todo(struct todo_list *todo_list, struct replay_opts *opts) { struct lock_file todo_lock = LOCK_INIT; @@ -2517,56 +3091,80 @@ static int save_opts(struct replay_opts *opts) int res = 0; if (opts->no_commit) - res |= git_config_set_in_file_gently(opts_file, "options.no-commit", "true"); + res |= git_config_set_in_file_gently(opts_file, + "options.no-commit", "true"); if (opts->edit) - res |= git_config_set_in_file_gently(opts_file, "options.edit", "true"); + res |= git_config_set_in_file_gently(opts_file, + "options.edit", "true"); + if (opts->allow_empty) + res |= git_config_set_in_file_gently(opts_file, + "options.allow-empty", "true"); + if (opts->allow_empty_message) + res |= git_config_set_in_file_gently(opts_file, + "options.allow-empty-message", "true"); + if (opts->keep_redundant_commits) + res |= git_config_set_in_file_gently(opts_file, + "options.keep-redundant-commits", "true"); if (opts->signoff) - res |= git_config_set_in_file_gently(opts_file, "options.signoff", "true"); + res |= git_config_set_in_file_gently(opts_file, + "options.signoff", "true"); if (opts->record_origin) - res |= git_config_set_in_file_gently(opts_file, "options.record-origin", "true"); + res |= git_config_set_in_file_gently(opts_file, + "options.record-origin", "true"); if (opts->allow_ff) - res |= git_config_set_in_file_gently(opts_file, "options.allow-ff", "true"); + res |= git_config_set_in_file_gently(opts_file, + "options.allow-ff", "true"); if (opts->mainline) { struct strbuf buf = STRBUF_INIT; strbuf_addf(&buf, "%d", opts->mainline); - res |= git_config_set_in_file_gently(opts_file, "options.mainline", buf.buf); + res |= git_config_set_in_file_gently(opts_file, + "options.mainline", buf.buf); strbuf_release(&buf); } if (opts->strategy) - res |= git_config_set_in_file_gently(opts_file, "options.strategy", opts->strategy); + res |= git_config_set_in_file_gently(opts_file, + "options.strategy", opts->strategy); if (opts->gpg_sign) - res |= git_config_set_in_file_gently(opts_file, "options.gpg-sign", opts->gpg_sign); + res |= git_config_set_in_file_gently(opts_file, + "options.gpg-sign", opts->gpg_sign); if (opts->xopts) { int i; for (i = 0; i < opts->xopts_nr; i++) res |= git_config_set_multivar_in_file_gently(opts_file, - "options.strategy-option", - opts->xopts[i], "^$", 0); + "options.strategy-option", + opts->xopts[i], "^$", 0); } if (opts->allow_rerere_auto) - res |= git_config_set_in_file_gently(opts_file, "options.allow-rerere-auto", - opts->allow_rerere_auto == RERERE_AUTOUPDATE ? - "true" : "false"); + res |= git_config_set_in_file_gently(opts_file, + "options.allow-rerere-auto", + opts->allow_rerere_auto == RERERE_AUTOUPDATE ? + "true" : "false"); + + if (opts->explicit_cleanup) + res |= git_config_set_in_file_gently(opts_file, + "options.default-msg-cleanup", + describe_cleanup_mode(opts->default_msg_cleanup)); return res; } -static int make_patch(struct commit *commit, struct replay_opts *opts) +static int make_patch(struct repository *r, + struct commit *commit, + struct replay_opts *opts) { struct strbuf buf = STRBUF_INIT; struct rev_info log_tree_opt; - const char *subject, *p; + const char *subject; + char hex[GIT_MAX_HEXSZ + 1]; int res = 0; - p = short_commit_name(commit); - if (write_message(p, strlen(p), rebase_path_stopped_sha(), 1) < 0) + oid_to_hex_r(hex, &commit->object.oid); + if (write_message(hex, strlen(hex), rebase_path_stopped_sha(), 1) < 0) return -1; - if (update_ref("rebase", "REBASE_HEAD", &commit->object.oid, - NULL, REF_NO_DEREF, UPDATE_REFS_MSG_ON_ERR)) - res |= error(_("could not update %s"), "REBASE_HEAD"); + res |= write_rebase_head(&commit->object.oid); strbuf_addf(&buf, "%s/patch", get_dir(opts)); memset(&log_tree_opt, 0, sizeof(log_tree_opt)); - init_revisions(&log_tree_opt, NULL); + repo_init_revisions(r, &log_tree_opt, NULL); log_tree_opt.abbrev = 0; log_tree_opt.diff = 1; log_tree_opt.diffopt.output_format = DIFF_FORMAT_PATCH; @@ -2584,7 +3182,8 @@ static int make_patch(struct commit *commit, struct replay_opts *opts) strbuf_addf(&buf, "%s/message", get_dir(opts)); if (!file_exists(buf.buf)) { - const char *commit_buffer = get_commit_buffer(commit, NULL); + const char *encoding = get_commit_output_encoding(); + const char *commit_buffer = logmsg_reencode(commit, NULL, encoding); find_commit_subject(commit_buffer, &subject); res |= write_message(subject, strlen(subject), buf.buf, 1); unuse_commit_buffer(commit, commit_buffer); @@ -2606,17 +3205,19 @@ static int intend_to_amend(void) return write_message(p, strlen(p), rebase_path_amend(), 1); } -static int error_with_patch(struct commit *commit, - const char *subject, int subject_len, - struct replay_opts *opts, int exit_code, int to_amend) +static int error_with_patch(struct repository *r, + struct commit *commit, + const char *subject, int subject_len, + struct replay_opts *opts, + int exit_code, int to_amend) { if (commit) { - if (make_patch(commit, opts)) + if (make_patch(r, commit, opts)) return -1; } else if (copy_file(rebase_path_message(), - git_path_merge_msg(the_repository), 0666)) + git_path_merge_msg(r), 0666)) return error(_("unable to copy '%s' to '%s'"), - git_path_merge_msg(the_repository), rebase_path_message()); + git_path_merge_msg(r), rebase_path_message()); if (to_amend) { if (intend_to_amend()) @@ -2647,39 +3248,42 @@ static int error_with_patch(struct commit *commit, return exit_code; } -static int error_failed_squash(struct commit *commit, - struct replay_opts *opts, int subject_len, const char *subject) +static int error_failed_squash(struct repository *r, + struct commit *commit, + struct replay_opts *opts, + int subject_len, + const char *subject) { if (copy_file(rebase_path_message(), rebase_path_squash_msg(), 0666)) return error(_("could not copy '%s' to '%s'"), rebase_path_squash_msg(), rebase_path_message()); - unlink(git_path_merge_msg(the_repository)); - if (copy_file(git_path_merge_msg(the_repository), rebase_path_message(), 0666)) + unlink(git_path_merge_msg(r)); + if (copy_file(git_path_merge_msg(r), rebase_path_message(), 0666)) return error(_("could not copy '%s' to '%s'"), rebase_path_message(), - git_path_merge_msg(the_repository)); - return error_with_patch(commit, subject, subject_len, opts, 1, 0); + git_path_merge_msg(r)); + return error_with_patch(r, commit, subject, subject_len, opts, 1, 0); } -static int do_exec(const char *command_line) +static int do_exec(struct repository *r, const char *command_line) { - struct argv_array child_env = ARGV_ARRAY_INIT; + struct strvec child_env = STRVEC_INIT; const char *child_argv[] = { NULL, NULL }; int dirty, status; - fprintf(stderr, "Executing: %s\n", command_line); + fprintf(stderr, _("Executing: %s\n"), command_line); child_argv[0] = command_line; - argv_array_pushf(&child_env, "GIT_DIR=%s", absolute_path(get_git_dir())); - argv_array_pushf(&child_env, "GIT_WORK_TREE=%s", - absolute_path(get_git_work_tree())); + strvec_pushf(&child_env, "GIT_DIR=%s", absolute_path(get_git_dir())); + strvec_pushf(&child_env, "GIT_WORK_TREE=%s", + absolute_path(get_git_work_tree())); status = run_command_v_opt_cd_env(child_argv, RUN_USING_SHELL, NULL, - child_env.argv); + child_env.v); /* force re-reading of the cache */ - if (discard_cache() < 0 || read_cache() < 0) + if (discard_index(r->index) < 0 || repo_read_index(r) < 0) return error(_("could not read index")); - dirty = require_clean_work_tree("rebase", NULL, 1, 1); + dirty = require_clean_work_tree(r, "rebase", NULL, 1, 1); if (status) { warning(_("execution failed: %s\n%s" @@ -2703,7 +3307,7 @@ static int do_exec(const char *command_line) status = 1; } - argv_array_clear(&child_env); + strvec_clear(&child_env); return status; } @@ -2745,9 +3349,9 @@ static int safe_append(const char *filename, const char *fmt, ...) return 0; } -static int do_label(const char *name, int len) +static int do_label(struct repository *r, const char *name, int len) { - struct ref_store *refs = get_main_ref_store(the_repository); + struct ref_store *refs = get_main_ref_store(r); struct ref_transaction *transaction; struct strbuf ref_name = STRBUF_INIT, err = STRBUF_INIT; struct strbuf msg = STRBUF_INIT; @@ -2758,7 +3362,7 @@ static int do_label(const char *name, int len) return error(_("illegal label name: '%.*s'"), len, name); strbuf_addf(&ref_name, "refs/rewritten/%.*s", len, name); - strbuf_addf(&msg, "rebase -i (label) '%.*s'", len, name); + strbuf_addf(&msg, "rebase (label) '%.*s'", len, name); transaction = ref_store_transaction_begin(refs, &err); if (!transaction) { @@ -2788,7 +3392,9 @@ static int do_label(const char *name, int len) static const char *reflog_message(struct replay_opts *opts, const char *sub_action, const char *fmt, ...); -static int do_reset(const char *name, int len, struct replay_opts *opts) +static int do_reset(struct repository *r, + const char *name, int len, + struct replay_opts *opts) { struct strbuf ref_name = STRBUF_INIT; struct object_id oid; @@ -2796,9 +3402,9 @@ static int do_reset(const char *name, int len, struct replay_opts *opts) struct tree_desc desc; struct tree *tree; struct unpack_trees_options unpack_tree_opts; - int ret = 0, i; + int ret = 0; - if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) + if (repo_hold_locked_index(r, &lock, LOCK_REPORT_ON_ERROR) < 0) return -1; if (len == 10 && !strncmp("[new root]", name, len)) { @@ -2816,10 +3422,13 @@ static int do_reset(const char *name, int len, struct replay_opts *opts) } oidcpy(&oid, &opts->squash_onto); } else { + int i; + /* Determine the length of the label */ for (i = 0; i < len; i++) if (isspace(name[i])) - len = i; + break; + len = i; strbuf_addf(&ref_name, "refs/rewritten/%.*s", len, name); if (get_oid(ref_name.buf, &oid) && @@ -2834,19 +3443,20 @@ static int do_reset(const char *name, int len, struct replay_opts *opts) memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts)); setup_unpack_trees_porcelain(&unpack_tree_opts, "reset"); unpack_tree_opts.head_idx = 1; - unpack_tree_opts.src_index = &the_index; - unpack_tree_opts.dst_index = &the_index; + unpack_tree_opts.src_index = r->index; + unpack_tree_opts.dst_index = r->index; unpack_tree_opts.fn = oneway_merge; unpack_tree_opts.merge = 1; unpack_tree_opts.update = 1; + init_checkout_metadata(&unpack_tree_opts.meta, name, &oid, NULL); - if (read_cache_unmerged()) { + if (repo_read_index_unmerged(r)) { rollback_lock_file(&lock); strbuf_release(&ref_name); return error_resolve_conflict(_(action_name(opts))); } - if (!fill_tree_descriptor(&desc, &oid)) { + if (!fill_tree_descriptor(r, &desc, &oid)) { error(_("failed to find tree of %s"), oid_to_hex(&oid)); rollback_lock_file(&lock); free((void *)desc.buffer); @@ -2862,9 +3472,9 @@ static int do_reset(const char *name, int len, struct replay_opts *opts) } tree = parse_tree_indirect(&oid); - prime_cache_tree(&the_index, tree); + prime_cache_tree(r, r->index, tree); - if (write_locked_index(&the_index, &lock, COMMIT_LOCK) < 0) + if (write_locked_index(r->index, &lock, COMMIT_LOCK) < 0) ret = error(_("could not write index")); free((void *)desc.buffer); @@ -2897,7 +3507,9 @@ static struct commit *lookup_label(const char *label, int len, return commit; } -static int do_merge(struct commit *commit, const char *arg, int arg_len, +static int do_merge(struct repository *r, + struct commit *commit, + const char *arg, int arg_len, int flags, struct replay_opts *opts) { int run_commit_flags = (flags & TODO_EDIT_MERGE_MSG) ? @@ -2906,12 +3518,17 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, struct commit *head_commit, *merge_commit, *i; struct commit_list *bases, *j, *reversed = NULL; struct commit_list *to_merge = NULL, **tail = &to_merge; + const char *strategy = !opts->xopts_nr && + (!opts->strategy || + !strcmp(opts->strategy, "recursive") || + !strcmp(opts->strategy, "ort")) ? + NULL : opts->strategy; struct merge_options o; int merge_arg_len, oneline_offset, can_fast_forward, ret, k; static struct lock_file lock; const char *p; - if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) { + if (repo_hold_locked_index(r, &lock, LOCK_REPORT_ON_ERROR) < 0) { ret = -1; goto leave_merge; } @@ -2954,7 +3571,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, } if (opts->have_squash_onto && - !oidcmp(&head_commit->object.oid, &opts->squash_onto)) { + oideq(&head_commit->object.oid, &opts->squash_onto)) { /* * When the user tells us to "merge" something into a * "[new root]", let's simply fast-forward to the merge head. @@ -2964,14 +3581,15 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, ret = error(_("octopus merge cannot be executed on " "top of a [new root]")); else - ret = fast_forward_to(&to_merge->item->object.oid, + ret = fast_forward_to(r, &to_merge->item->object.oid, &head_commit->object.oid, 0, opts); goto leave_merge; } if (commit) { - const char *message = get_commit_buffer(commit, NULL); + const char *encoding = get_commit_output_encoding(); + const char *message = logmsg_reencode(commit, NULL, encoding); const char *body; int len; @@ -2983,11 +3601,11 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, write_author_script(message); find_commit_subject(message, &body); len = strlen(body); - ret = write_message(body, len, git_path_merge_msg(the_repository), 0); + ret = write_message(body, len, git_path_merge_msg(r), 0); unuse_commit_buffer(commit, message); if (ret) { error_errno(_("could not write '%s'"), - git_path_merge_msg(the_repository)); + git_path_merge_msg(r)); goto leave_merge; } } else { @@ -3009,11 +3627,11 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, len = buf.len; } - ret = write_message(p, len, git_path_merge_msg(the_repository), 0); + ret = write_message(p, len, git_path_merge_msg(r), 0); strbuf_release(&buf); if (ret) { error_errno(_("could not write '%s'"), - git_path_merge_msg(the_repository)); + git_path_merge_msg(r)); goto leave_merge; } } @@ -3023,8 +3641,8 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, * commit, we cannot fast-forward. */ can_fast_forward = opts->allow_ff && commit && commit->parents && - !oidcmp(&commit->parents->item->object.oid, - &head_commit->object.oid); + oideq(&commit->parents->item->object.oid, + &head_commit->object.oid); /* * If any merge head is different from the original one, we cannot @@ -3034,7 +3652,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, struct commit_list *p = commit->parents->next; for (j = to_merge; j && p; j = j->next, p = p->next) - if (oidcmp(&j->item->object.oid, + if (!oideq(&j->item->object.oid, &p->item->object.oid)) { can_fast_forward = 0; break; @@ -3049,12 +3667,16 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, if (can_fast_forward) { rollback_lock_file(&lock); - ret = fast_forward_to(&commit->object.oid, + ret = fast_forward_to(r, &commit->object.oid, &head_commit->object.oid, 0, opts); + if (flags & TODO_EDIT_MERGE_MSG) { + run_commit_flags |= AMEND_MSG; + goto fast_forward_edit; + } goto leave_merge; } - if (to_merge->next) { + if (strategy || to_merge->next) { /* Octopus merge */ struct child_process cmd = CHILD_PROCESS_INIT; @@ -3065,61 +3687,92 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, goto leave_merge; } + if (opts->committer_date_is_author_date) + strvec_pushf(&cmd.env_array, "GIT_COMMITTER_DATE=%s", + opts->ignore_date ? + "" : + author_date_from_env_array(&cmd.env_array)); + if (opts->ignore_date) + strvec_push(&cmd.env_array, "GIT_AUTHOR_DATE="); + cmd.git_cmd = 1; - argv_array_push(&cmd.args, "merge"); - argv_array_push(&cmd.args, "-s"); - argv_array_push(&cmd.args, "octopus"); - argv_array_push(&cmd.args, "--no-edit"); - argv_array_push(&cmd.args, "--no-ff"); - argv_array_push(&cmd.args, "--no-log"); - argv_array_push(&cmd.args, "--no-stat"); - argv_array_push(&cmd.args, "-F"); - argv_array_push(&cmd.args, git_path_merge_msg(the_repository)); + strvec_push(&cmd.args, "merge"); + strvec_push(&cmd.args, "-s"); + if (!strategy) + strvec_push(&cmd.args, "octopus"); + else { + strvec_push(&cmd.args, strategy); + for (k = 0; k < opts->xopts_nr; k++) + strvec_pushf(&cmd.args, + "-X%s", opts->xopts[k]); + } + strvec_push(&cmd.args, "--no-edit"); + strvec_push(&cmd.args, "--no-ff"); + strvec_push(&cmd.args, "--no-log"); + strvec_push(&cmd.args, "--no-stat"); + strvec_push(&cmd.args, "-F"); + strvec_push(&cmd.args, git_path_merge_msg(r)); if (opts->gpg_sign) - argv_array_push(&cmd.args, opts->gpg_sign); + strvec_pushf(&cmd.args, "-S%s", opts->gpg_sign); + else + strvec_push(&cmd.args, "--no-gpg-sign"); /* Add the tips to be merged */ for (j = to_merge; j; j = j->next) - argv_array_push(&cmd.args, - oid_to_hex(&j->item->object.oid)); + strvec_push(&cmd.args, + oid_to_hex(&j->item->object.oid)); strbuf_release(&ref_name); - unlink(git_path_cherry_pick_head(the_repository)); + refs_delete_ref(get_main_ref_store(r), "", "CHERRY_PICK_HEAD", + NULL, 0); rollback_lock_file(&lock); - rollback_lock_file(&lock); ret = run_command(&cmd); /* force re-reading of the cache */ - if (!ret && (discard_cache() < 0 || read_cache() < 0)) + if (!ret && (discard_index(r->index) < 0 || + repo_read_index(r) < 0)) ret = error(_("could not read index")); goto leave_merge; } merge_commit = to_merge->item; - write_message(oid_to_hex(&merge_commit->object.oid), GIT_SHA1_HEXSZ, - git_path_merge_head(the_repository), 0); - write_message("no-ff", 5, git_path_merge_mode(the_repository), 0); - bases = get_merge_bases(head_commit, merge_commit); - if (bases && !oidcmp(&merge_commit->object.oid, - &bases->item->object.oid)) { + if (bases && oideq(&merge_commit->object.oid, + &bases->item->object.oid)) { ret = 0; /* skip merging an ancestor of HEAD */ goto leave_merge; } + write_message(oid_to_hex(&merge_commit->object.oid), the_hash_algo->hexsz, + git_path_merge_head(r), 0); + write_message("no-ff", 5, git_path_merge_mode(r), 0); + for (j = bases; j; j = j->next) commit_list_insert(j->item, &reversed); free_commit_list(bases); - read_cache(); - init_merge_options(&o); + repo_read_index(r); + init_merge_options(&o, r); o.branch1 = "HEAD"; o.branch2 = ref_name.buf; o.buffer_output = 2; - ret = merge_recursive(&o, head_commit, merge_commit, reversed, &i); + if (opts->strategy && !strcmp(opts->strategy, "ort")) { + /* + * TODO: Should use merge_incore_recursive() and + * merge_switch_to_result(), skipping the call to + * merge_switch_to_result() when we don't actually need to + * update the index and working copy immediately. + */ + ret = merge_ort_recursive(&o, + head_commit, merge_commit, reversed, + &i); + } else { + ret = merge_recursive(&o, head_commit, merge_commit, reversed, + &i); + } if (ret <= 0) fputs(o.obuf.buf, stdout); strbuf_release(&o.obuf); @@ -3138,23 +3791,24 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, */ ret = !ret; - if (active_cache_changed && - write_locked_index(&the_index, &lock, COMMIT_LOCK)) { + if (r->index->cache_changed && + write_locked_index(r->index, &lock, COMMIT_LOCK)) { ret = error(_("merge: Unable to write new index file")); goto leave_merge; } rollback_lock_file(&lock); if (ret) - rerere(opts->allow_rerere_auto); + repo_rerere(r, opts->allow_rerere_auto); else /* * In case of problems, we now want to return a positive * value (a negative one would indicate that the `merge` * command needs to be rescheduled). */ - ret = !!run_git_commit(git_path_merge_msg(the_repository), opts, - run_commit_flags); + fast_forward_edit: + ret = !!run_git_commit(git_path_merge_msg(r), opts, + run_commit_flags); leave_merge: strbuf_release(&ref_name); @@ -3189,59 +3843,142 @@ static enum todo_command peek_command(struct todo_list *todo_list, int offset) return -1; } -static int apply_autostash(struct replay_opts *opts) +void create_autostash(struct repository *r, const char *path, + const char *default_reflog_action) +{ + struct strbuf buf = STRBUF_INIT; + struct lock_file lock_file = LOCK_INIT; + int fd; + + fd = repo_hold_locked_index(r, &lock_file, 0); + refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL); + if (0 <= fd) + repo_update_index_if_able(r, &lock_file); + rollback_lock_file(&lock_file); + + if (has_unstaged_changes(r, 1) || + has_uncommitted_changes(r, 1)) { + struct child_process stash = CHILD_PROCESS_INIT; + struct object_id oid; + + strvec_pushl(&stash.args, + "stash", "create", "autostash", NULL); + stash.git_cmd = 1; + stash.no_stdin = 1; + strbuf_reset(&buf); + if (capture_command(&stash, &buf, GIT_MAX_HEXSZ)) + die(_("Cannot autostash")); + strbuf_trim_trailing_newline(&buf); + if (get_oid(buf.buf, &oid)) + die(_("Unexpected stash response: '%s'"), + buf.buf); + strbuf_reset(&buf); + strbuf_add_unique_abbrev(&buf, &oid, DEFAULT_ABBREV); + + if (safe_create_leading_directories_const(path)) + die(_("Could not create directory for '%s'"), + path); + write_file(path, "%s", oid_to_hex(&oid)); + printf(_("Created autostash: %s\n"), buf.buf); + if (reset_head(r, NULL, "reset --hard", + NULL, RESET_HEAD_HARD, NULL, NULL, + default_reflog_action) < 0) + die(_("could not reset --hard")); + + if (discard_index(r->index) < 0 || + repo_read_index(r) < 0) + die(_("could not read index")); + } + strbuf_release(&buf); +} + +static int apply_save_autostash_oid(const char *stash_oid, int attempt_apply) { - struct strbuf stash_sha1 = STRBUF_INIT; struct child_process child = CHILD_PROCESS_INIT; int ret = 0; - if (!read_oneliner(&stash_sha1, rebase_path_autostash(), 1)) { - strbuf_release(&stash_sha1); - return 0; + if (attempt_apply) { + child.git_cmd = 1; + child.no_stdout = 1; + child.no_stderr = 1; + strvec_push(&child.args, "stash"); + strvec_push(&child.args, "apply"); + strvec_push(&child.args, stash_oid); + ret = run_command(&child); } - strbuf_trim(&stash_sha1); - child.git_cmd = 1; - child.no_stdout = 1; - child.no_stderr = 1; - argv_array_push(&child.args, "stash"); - argv_array_push(&child.args, "apply"); - argv_array_push(&child.args, stash_sha1.buf); - if (!run_command(&child)) + if (attempt_apply && !ret) fprintf(stderr, _("Applied autostash.\n")); else { struct child_process store = CHILD_PROCESS_INIT; store.git_cmd = 1; - argv_array_push(&store.args, "stash"); - argv_array_push(&store.args, "store"); - argv_array_push(&store.args, "-m"); - argv_array_push(&store.args, "autostash"); - argv_array_push(&store.args, "-q"); - argv_array_push(&store.args, stash_sha1.buf); + strvec_push(&store.args, "stash"); + strvec_push(&store.args, "store"); + strvec_push(&store.args, "-m"); + strvec_push(&store.args, "autostash"); + strvec_push(&store.args, "-q"); + strvec_push(&store.args, stash_oid); if (run_command(&store)) - ret = error(_("cannot store %s"), stash_sha1.buf); + ret = error(_("cannot store %s"), stash_oid); else fprintf(stderr, - _("Applying autostash resulted in conflicts.\n" + _("%s\n" "Your changes are safe in the stash.\n" "You can run \"git stash pop\" or" - " \"git stash drop\" at any time.\n")); + " \"git stash drop\" at any time.\n"), + attempt_apply ? + _("Applying autostash resulted in conflicts.") : + _("Autostash exists; creating a new stash entry.")); + } + + return ret; +} + +static int apply_save_autostash(const char *path, int attempt_apply) +{ + struct strbuf stash_oid = STRBUF_INIT; + int ret = 0; + + if (!read_oneliner(&stash_oid, path, + READ_ONELINER_SKIP_IF_EMPTY)) { + strbuf_release(&stash_oid); + return 0; } + strbuf_trim(&stash_oid); + + ret = apply_save_autostash_oid(stash_oid.buf, attempt_apply); - strbuf_release(&stash_sha1); + unlink(path); + strbuf_release(&stash_oid); return ret; } +int save_autostash(const char *path) +{ + return apply_save_autostash(path, 0); +} + +int apply_autostash(const char *path) +{ + return apply_save_autostash(path, 1); +} + +int apply_autostash_oid(const char *stash_oid) +{ + return apply_save_autostash_oid(stash_oid, 1); +} + static const char *reflog_message(struct replay_opts *opts, const char *sub_action, const char *fmt, ...) { va_list ap; static struct strbuf buf = STRBUF_INIT; + char *reflog_action = getenv(GIT_REFLOG_ACTION); va_start(ap, fmt); strbuf_reset(&buf); - strbuf_addstr(&buf, action_name(opts)); + strbuf_addstr(&buf, reflog_action ? reflog_action : action_name(opts)); if (sub_action) strbuf_addf(&buf, " (%s)", sub_action); if (fmt) { @@ -3253,6 +3990,62 @@ static const char *reflog_message(struct replay_opts *opts, return buf.buf; } +static int run_git_checkout(struct repository *r, struct replay_opts *opts, + const char *commit, const char *action) +{ + struct child_process cmd = CHILD_PROCESS_INIT; + int ret; + + cmd.git_cmd = 1; + + strvec_push(&cmd.args, "checkout"); + strvec_push(&cmd.args, commit); + strvec_pushf(&cmd.env_array, GIT_REFLOG_ACTION "=%s", action); + + if (opts->verbose) + ret = run_command(&cmd); + else + ret = run_command_silent_on_success(&cmd); + + if (!ret) + discard_index(r->index); + + return ret; +} + +static int checkout_onto(struct repository *r, struct replay_opts *opts, + const char *onto_name, const struct object_id *onto, + const struct object_id *orig_head) +{ + const char *action = reflog_message(opts, "start", "checkout %s", onto_name); + + if (run_git_checkout(r, opts, oid_to_hex(onto), action)) { + apply_autostash(rebase_path_autostash()); + sequencer_remove_state(opts); + return error(_("could not detach HEAD")); + } + + return update_ref(NULL, "ORIG_HEAD", orig_head, NULL, 0, UPDATE_REFS_MSG_ON_ERR); +} + +static int stopped_at_head(struct repository *r) +{ + struct object_id head; + struct commit *commit; + struct commit_message message; + + if (get_oid("HEAD", &head) || + !(commit = lookup_commit(r, &head)) || + parse_commit(commit) || get_message(commit, &message)) + fprintf(stderr, _("Stopped at HEAD\n")); + else { + fprintf(stderr, _("Stopped at %s\n"), message.label); + free_message(commit, &message); + } + return 0; + +} + static const char rescheduled_advice[] = N_("Could not execute the todo command\n" "\n" @@ -3264,19 +4057,29 @@ N_("Could not execute the todo command\n" " git rebase --edit-todo\n" " git rebase --continue\n"); -static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) +static int pick_commits(struct repository *r, + struct todo_list *todo_list, + struct replay_opts *opts) { int res = 0, reschedule = 0; + char *prev_reflog_action; + /* Note that 0 for 3rd parameter of setenv means set only if not set */ setenv(GIT_REFLOG_ACTION, action_name(opts), 0); + prev_reflog_action = xstrdup(getenv(GIT_REFLOG_ACTION)); if (opts->allow_ff) assert(!(opts->signoff || opts->no_commit || - opts->record_origin || opts->edit)); - if (read_and_refresh_cache(opts)) + opts->record_origin || opts->edit || + opts->committer_date_is_author_date || + opts->ignore_date)); + if (read_and_refresh_cache(r, opts)) return -1; while (todo_list->current < todo_list->nr) { struct todo_item *item = todo_list->items + todo_list->current; + const char *arg = todo_item_get_arg(todo_list, item); + int check_todo = 0; + if (save_todo(todo_list, opts)) return -1; if (is_rebase_i(opts)) { @@ -3289,24 +4092,35 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) fprintf(f, "%d\n", todo_list->done_nr); fclose(f); } - fprintf(stderr, "Rebasing (%d/%d)%s", - todo_list->done_nr, - todo_list->total_nr, - opts->verbose ? "\n" : "\r"); + if (!opts->quiet) + fprintf(stderr, _("Rebasing (%d/%d)%s"), + todo_list->done_nr, + todo_list->total_nr, + opts->verbose ? "\n" : "\r"); } unlink(rebase_path_message()); unlink(rebase_path_author_script()); unlink(rebase_path_stopped_sha()); unlink(rebase_path_amend()); + unlink(git_path_merge_head(r)); delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF); + + if (item->command == TODO_BREAK) { + if (!opts->verbose) + term_clear_line(); + return stopped_at_head(r); + } } if (item->command <= TODO_SQUASH) { if (is_rebase_i(opts)) - setenv("GIT_REFLOG_ACTION", reflog_message(opts, + setenv(GIT_REFLOG_ACTION, reflog_message(opts, command_to_string(item->command), NULL), 1); - res = do_pick_commit(item->command, item->commit, - opts, is_final_fixup(todo_list)); + res = do_pick_commit(r, item->command, item->commit, + opts, is_final_fixup(todo_list), + &check_todo); + if (is_rebase_i(opts)) + setenv(GIT_REFLOG_ACTION, prev_reflog_action, 1); if (is_rebase_i(opts) && res < 0) { /* Reschedule */ advise(_(rescheduled_advice), @@ -3320,14 +4134,16 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) } if (item->command == TODO_EDIT) { struct commit *commit = item->commit; - if (!res) + if (!res) { + if (!opts->verbose) + term_clear_line(); fprintf(stderr, _("Stopped at %s... %.*s\n"), short_commit_name(commit), - item->arg_len, item->arg); - return error_with_patch(commit, - item->arg, item->arg_len, opts, res, - !res); + item->arg_len, arg); + } + return error_with_patch(r, commit, + arg, item->arg_len, opts, res, !res); } if (is_rebase_i(opts) && !res) record_in_rewritten(&item->commit->object.oid, @@ -3335,8 +4151,8 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) if (res && is_fixup(item->command)) { if (res == 1) intend_to_amend(); - return error_failed_squash(item->commit, opts, - item->arg_len, item->arg); + return error_failed_squash(r, item->commit, opts, + item->arg_len, arg); } else if (res && is_rebase_i(opts) && item->commit) { int to_amend = 0; struct object_id oid; @@ -3349,46 +4165,39 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) */ if (item->command == TODO_REWORD && !get_oid("HEAD", &oid) && - (!oidcmp(&item->commit->object.oid, &oid) || + (oideq(&item->commit->object.oid, &oid) || (opts->have_squash_onto && - !oidcmp(&opts->squash_onto, &oid)))) + oideq(&opts->squash_onto, &oid)))) to_amend = 1; - return res | error_with_patch(item->commit, - item->arg, item->arg_len, opts, + return res | error_with_patch(r, item->commit, + arg, item->arg_len, opts, res, to_amend); } } else if (item->command == TODO_EXEC) { - char *end_of_arg = (char *)(item->arg + item->arg_len); + char *end_of_arg = (char *)(arg + item->arg_len); int saved = *end_of_arg; - struct stat st; + if (!opts->verbose) + term_clear_line(); *end_of_arg = '\0'; - res = do_exec(item->arg); + res = do_exec(r, arg); *end_of_arg = saved; - /* Reread the todo file if it has changed. */ - if (res) - ; /* fall through */ - else if (stat(get_todo_path(opts), &st)) - res = error_errno(_("could not stat '%s'"), - get_todo_path(opts)); - else if (match_stat_data(&todo_list->stat, &st)) { - todo_list_release(todo_list); - if (read_populate_todo(todo_list, opts)) - res = -1; /* message was printed */ - /* `current` will be incremented below */ - todo_list->current = -1; + if (res) { + if (opts->reschedule_failed_exec) + reschedule = 1; } + check_todo = 1; } else if (item->command == TODO_LABEL) { - if ((res = do_label(item->arg, item->arg_len))) + if ((res = do_label(r, arg, item->arg_len))) reschedule = 1; } else if (item->command == TODO_RESET) { - if ((res = do_reset(item->arg, item->arg_len, opts))) + if ((res = do_reset(r, arg, item->arg_len, opts))) reschedule = 1; } else if (item->command == TODO_MERGE) { - if ((res = do_merge(item->commit, - item->arg, item->arg_len, + if ((res = do_merge(r, item->commit, + arg, item->arg_len, item->flags, opts)) < 0) reschedule = 1; else if (item->commit) @@ -3396,10 +4205,9 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) peek_command(todo_list, 1)); if (res > 0) /* failed with merge conflicts */ - return error_with_patch(item->commit, - item->arg, - item->arg_len, opts, - res, 0); + return error_with_patch(r, item->commit, + arg, item->arg_len, + opts, res, 0); } else if (!is_noop(item->command)) return error(_("unknown command %d"), item->command); @@ -3412,10 +4220,24 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) if (save_todo(todo_list, opts)) return -1; if (item->commit) - return error_with_patch(item->commit, - item->arg, - item->arg_len, opts, - res, 0); + return error_with_patch(r, + item->commit, + arg, item->arg_len, + opts, res, 0); + } else if (is_rebase_i(opts) && check_todo && !res) { + struct stat st; + + if (stat(get_todo_path(opts), &st)) { + res = error_errno(_("could not stat '%s'"), + get_todo_path(opts)); + } else if (match_stat_data(&todo_list->stat, &st)) { + /* Reread the todo file if it has changed. */ + todo_list_release(todo_list); + if (read_populate_todo(r, todo_list, opts)) + res = -1; /* message was printed */ + /* `current` will be incremented below */ + todo_list->current = -1; + } } todo_list->current++; @@ -3477,7 +4299,7 @@ cleanup_head_ref: struct object_id orig, head; memset(&log_tree_opt, 0, sizeof(log_tree_opt)); - init_revisions(&log_tree_opt, NULL); + repo_init_revisions(r, &log_tree_opt, NULL); log_tree_opt.diff = 1; log_tree_opt.diffopt.output_format = DIFF_FORMAT_DIFFSTAT; @@ -3500,9 +4322,9 @@ cleanup_head_ref: child.in = open(rebase_path_rewritten_list(), O_RDONLY); child.git_cmd = 1; - argv_array_push(&child.args, "notes"); - argv_array_push(&child.args, "copy"); - argv_array_push(&child.args, "--for-rewrite=rebase"); + strvec_push(&child.args, "notes"); + strvec_push(&child.args, "copy"); + strvec_push(&child.args, "--for-rewrite=rebase"); /* we don't care if this copying failed */ run_command(&child); @@ -3512,16 +4334,22 @@ cleanup_head_ref: hook.in = open(rebase_path_rewritten_list(), O_RDONLY); hook.stdout_to_stderr = 1; - argv_array_push(&hook.args, post_rewrite_hook); - argv_array_push(&hook.args, "rebase"); + hook.trace2_hook_name = "post-rewrite"; + strvec_push(&hook.args, post_rewrite_hook); + strvec_push(&hook.args, "rebase"); /* we don't care if this hook failed */ run_command(&hook); } } - apply_autostash(opts); + apply_autostash(rebase_path_autostash()); - fprintf(stderr, "Successfully rebased and updated %s.\n", - head_ref.buf); + if (!opts->quiet) { + if (!opts->verbose) + term_clear_line(); + fprintf(stderr, + _("Successfully rebased and updated %s.\n"), + head_ref.buf); + } strbuf_release(&buf); strbuf_release(&head_ref); @@ -3534,26 +4362,27 @@ cleanup_head_ref: return sequencer_remove_state(opts); } -static int continue_single_pick(void) +static int continue_single_pick(struct repository *r) { const char *argv[] = { "commit", NULL }; - if (!file_exists(git_path_cherry_pick_head(the_repository)) && - !file_exists(git_path_revert_head(the_repository))) + if (!refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") && + !refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) return error(_("no cherry-pick or revert in progress")); return run_command_v_opt(argv, RUN_GIT_CMD); } -static int commit_staged_changes(struct replay_opts *opts, +static int commit_staged_changes(struct repository *r, + struct replay_opts *opts, struct todo_list *todo_list) { unsigned int flags = ALLOW_EMPTY | EDIT_MSG; unsigned int final_fixup = 0, is_clean; - if (has_unstaged_changes(1)) + if (has_unstaged_changes(r, 1)) return error(_("cannot rebase: You have unstaged changes.")); - is_clean = !has_uncommitted_changes(0); + is_clean = !has_uncommitted_changes(r, 0); if (file_exists(rebase_path_amend())) { struct strbuf rev = STRBUF_INIT; @@ -3566,7 +4395,7 @@ static int commit_staged_changes(struct replay_opts *opts, if (get_oid_hex(rev.buf, &to_amend)) return error(_("invalid contents: '%s'"), rebase_path_amend()); - if (!is_clean && oidcmp(&head, &to_amend)) + if (!is_clean && !oideq(&head, &to_amend)) return error(_("\nYou have uncommitted changes in your " "working tree. Please, commit them\n" "first and then run 'git rebase " @@ -3578,9 +4407,20 @@ static int commit_staged_changes(struct replay_opts *opts, * the commit message and if there was a squash, let the user * edit it. */ - if (is_clean && !oidcmp(&head, &to_amend) && - opts->current_fixup_count > 0 && - file_exists(rebase_path_stopped_sha())) { + if (!is_clean || !opts->current_fixup_count) + ; /* this is not the final fixup */ + else if (!oideq(&head, &to_amend) || + !file_exists(rebase_path_stopped_sha())) { + /* was a final fixup or squash done manually? */ + if (!is_fixup(peek_command(todo_list, 0))) { + unlink(rebase_path_fixup_msg()); + unlink(rebase_path_squash_msg()); + unlink(rebase_path_current_fixups()); + strbuf_reset(&opts->current_fixups); + opts->current_fixup_count = 0; + } + } else { + /* we are in a fixup/squash chain */ const char *p = opts->current_fixups.buf; int len = opts->current_fixups.len; @@ -3625,9 +4465,10 @@ static int commit_staged_changes(struct replay_opts *opts, */ struct commit *commit; const char *path = rebase_path_squash_msg(); + const char *encoding = get_commit_output_encoding(); - if (parse_head(&commit) || - !(p = get_commit_buffer(commit, NULL)) || + if (parse_head(r, &commit) || + !(p = logmsg_reencode(commit, NULL, encoding)) || write_message(p, strlen(p), path, 0)) { unuse_commit_buffer(commit, p); return error(_("could not write file: " @@ -3642,9 +4483,10 @@ static int commit_staged_changes(struct replay_opts *opts, } if (is_clean) { - const char *cherry_pick_head = git_path_cherry_pick_head(the_repository); - - if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) + if (refs_ref_exists(get_main_ref_store(r), + "CHERRY_PICK_HEAD") && + refs_delete_ref(get_main_ref_store(r), "", + "CHERRY_PICK_HEAD", NULL, 0)) return error(_("could not remove CHERRY_PICK_HEAD")); if (!final_fixup) return 0; @@ -3654,6 +4496,7 @@ static int commit_staged_changes(struct replay_opts *opts, opts, flags)) return error(_("could not commit staged changes.")); unlink(rebase_path_amend()); + unlink(git_path_merge_head(r)); if (final_fixup) { unlink(rebase_path_fixup_msg()); unlink(rebase_path_squash_msg()); @@ -3670,36 +4513,47 @@ static int commit_staged_changes(struct replay_opts *opts, return 0; } -int sequencer_continue(struct replay_opts *opts) +int sequencer_continue(struct repository *r, struct replay_opts *opts) { struct todo_list todo_list = TODO_LIST_INIT; int res; - if (read_and_refresh_cache(opts)) + if (read_and_refresh_cache(r, opts)) return -1; if (read_populate_opts(opts)) return -1; if (is_rebase_i(opts)) { - if ((res = read_populate_todo(&todo_list, opts))) + if ((res = read_populate_todo(r, &todo_list, opts))) goto release_todo_list; - if (commit_staged_changes(opts, &todo_list)) - return -1; + + if (file_exists(rebase_path_dropped())) { + if ((res = todo_list_check_against_backup(r, &todo_list))) + goto release_todo_list; + + unlink(rebase_path_dropped()); + } + + if (commit_staged_changes(r, opts, &todo_list)) { + res = -1; + goto release_todo_list; + } } else if (!file_exists(get_todo_path(opts))) - return continue_single_pick(); - else if ((res = read_populate_todo(&todo_list, opts))) + return continue_single_pick(r); + else if ((res = read_populate_todo(r, &todo_list, opts))) goto release_todo_list; if (!is_rebase_i(opts)) { /* Verify that the conflict has been resolved */ - if (file_exists(git_path_cherry_pick_head(the_repository)) || - file_exists(git_path_revert_head(the_repository))) { - res = continue_single_pick(); + if (refs_ref_exists(get_main_ref_store(r), + "CHERRY_PICK_HEAD") || + refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD")) { + res = continue_single_pick(r); if (res) goto release_todo_list; } - if (index_differs_from("HEAD", NULL, 0)) { - res = error_dirty_index(opts); + if (index_differs_from(r, "HEAD", NULL, 0)) { + res = error_dirty_index(r, opts); goto release_todo_list; } todo_list.current++; @@ -3707,33 +4561,40 @@ int sequencer_continue(struct replay_opts *opts) struct strbuf buf = STRBUF_INIT; struct object_id oid; - if (read_oneliner(&buf, rebase_path_stopped_sha(), 1) && - !get_oid_committish(buf.buf, &oid)) + if (read_oneliner(&buf, rebase_path_stopped_sha(), + READ_ONELINER_SKIP_IF_EMPTY) && + !get_oid_hex(buf.buf, &oid)) record_in_rewritten(&oid, peek_command(&todo_list, 0)); strbuf_release(&buf); } - res = pick_commits(&todo_list, opts); + res = pick_commits(r, &todo_list, opts); release_todo_list: todo_list_release(&todo_list); return res; } -static int single_pick(struct commit *cmit, struct replay_opts *opts) +static int single_pick(struct repository *r, + struct commit *cmit, + struct replay_opts *opts) { + int check_todo; + setenv(GIT_REFLOG_ACTION, action_name(opts), 0); - return do_pick_commit(opts->action == REPLAY_PICK ? - TODO_PICK : TODO_REVERT, cmit, opts, 0); + return do_pick_commit(r, opts->action == REPLAY_PICK ? + TODO_PICK : TODO_REVERT, cmit, opts, 0, + &check_todo); } -int sequencer_pick_revisions(struct replay_opts *opts) +int sequencer_pick_revisions(struct repository *r, + struct replay_opts *opts) { struct todo_list todo_list = TODO_LIST_INIT; struct object_id oid; int i, res; assert(opts->revs); - if (read_and_refresh_cache(opts)) + if (read_and_refresh_cache(r, opts)) return -1; for (i = 0; i < opts->revs->pending.nr; i++) { @@ -3745,8 +4606,8 @@ int sequencer_pick_revisions(struct replay_opts *opts) continue; if (!get_oid(name, &oid)) { - if (!lookup_commit_reference_gently(the_repository, &oid, 1)) { - enum object_type type = oid_object_info(the_repository, + if (!lookup_commit_reference_gently(r, &oid, 1)) { + enum object_type type = oid_object_info(r, &oid, NULL); return error(_("%s: can't cherry-pick a %s"), @@ -3775,7 +4636,7 @@ int sequencer_pick_revisions(struct replay_opts *opts) return error(_("empty commit set passed")); if (get_revision(opts->revs)) BUG("unexpected extra commit from walk"); - return single_pick(cmit, opts); + return single_pick(r, cmit, opts); } /* @@ -3785,7 +4646,7 @@ int sequencer_pick_revisions(struct replay_opts *opts) */ if (walk_revs_populate_todo(&todo_list, opts) || - create_seq_dir() < 0) + create_seq_dir(r) < 0) return -1; if (get_oid("HEAD", &oid) && (opts->action == REPLAY_REVERT)) return error(_("can't revert as initial commit")); @@ -3794,20 +4655,19 @@ int sequencer_pick_revisions(struct replay_opts *opts) if (save_opts(opts)) return -1; update_abort_safety_file(); - res = pick_commits(&todo_list, opts); + res = pick_commits(r, &todo_list, opts); todo_list_release(&todo_list); return res; } -void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag) +void append_signoff(struct strbuf *msgbuf, size_t ignore_footer, unsigned flag) { unsigned no_dup_sob = flag & APPEND_SIGNOFF_DEDUP; struct strbuf sob = STRBUF_INIT; int has_footer; strbuf_addstr(&sob, sign_off_header); - strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"), - getenv("GIT_COMMITTER_EMAIL"))); + strbuf_addstr(&sob, fmt_name(WANT_COMMITTER_IDENT)); strbuf_addch(&sob, '\n'); if (!ignore_footer) @@ -3865,9 +4725,14 @@ struct labels_entry { char label[FLEX_ARRAY]; }; -static int labels_cmp(const void *fndata, const struct labels_entry *a, - const struct labels_entry *b, const void *key) +static int labels_cmp(const void *fndata, const struct hashmap_entry *eptr, + const struct hashmap_entry *entry_or_key, const void *key) { + const struct labels_entry *a, *b; + + a = container_of(eptr, const struct labels_entry, entry); + b = container_of(entry_or_key, const struct labels_entry, entry); + return key ? strcmp(a->label, key) : strcmp(a->label, b->label); } @@ -3888,7 +4753,6 @@ static const char *label_oid(struct object_id *oid, const char *label, struct labels_entry *labels_entry; struct string_entry *string_entry; struct object_id dummy; - size_t len; int i; string_entry = oidmap_get(&state->commit2label, oid); @@ -3908,11 +4772,11 @@ static const char *label_oid(struct object_id *oid, const char *label, * abbreviation for any uninteresting commit's names that does not * clash with any other label. */ + strbuf_reset(&state->buf); if (!label) { char *p; - strbuf_reset(&state->buf); - strbuf_grow(&state->buf, GIT_SHA1_HEXSZ); + strbuf_grow(&state->buf, GIT_MAX_HEXSZ); label = p = state->buf.buf; find_unique_abbrev_r(p, oid, default_abbrev); @@ -3925,7 +4789,7 @@ static const char *label_oid(struct object_id *oid, const char *label, size_t i = strlen(p) + 1; oid_to_hex_r(p, oid); - for (; i < GIT_SHA1_HEXSZ; i++) { + for (; i < the_hash_algo->hexsz; i++) { char save = p[i]; p[i] = '\0'; if (!hashmap_get_from_hash(&state->labels, @@ -3934,37 +4798,60 @@ static const char *label_oid(struct object_id *oid, const char *label, p[i] = save; } } - } else if (((len = strlen(label)) == the_hash_algo->hexsz && - !get_oid_hex(label, &dummy)) || - (len == 1 && *label == '#') || - hashmap_get_from_hash(&state->labels, - strihash(label), label)) { + } else { + struct strbuf *buf = &state->buf; + /* - * If the label already exists, or if the label is a valid full - * OID, or the label is a '#' (which we use as a separator - * between merge heads and oneline), we append a dash and a - * number to make it unique. + * Sanitize labels by replacing non-alpha-numeric characters + * (including white-space ones) by dashes, as they might be + * illegal in file names (and hence in ref names). + * + * Note that we retain non-ASCII UTF-8 characters (identified + * via the most significant bit). They should be all acceptable + * in file names. We do not validate the UTF-8 here, that's not + * the job of this function. */ - struct strbuf *buf = &state->buf; + for (; *label; label++) + if ((*label & 0x80) || isalnum(*label)) + strbuf_addch(buf, *label); + /* avoid leading dash and double-dashes */ + else if (buf->len && buf->buf[buf->len - 1] != '-') + strbuf_addch(buf, '-'); + if (!buf->len) { + strbuf_addstr(buf, "rev-"); + strbuf_add_unique_abbrev(buf, oid, default_abbrev); + } + label = buf->buf; - strbuf_reset(buf); - strbuf_add(buf, label, len); + if ((buf->len == the_hash_algo->hexsz && + !get_oid_hex(label, &dummy)) || + (buf->len == 1 && *label == '#') || + hashmap_get_from_hash(&state->labels, + strihash(label), label)) { + /* + * If the label already exists, or if the label is a + * valid full OID, or the label is a '#' (which we use + * as a separator between merge heads and oneline), we + * append a dash and a number to make it unique. + */ + size_t len = buf->len; - for (i = 2; ; i++) { - strbuf_setlen(buf, len); - strbuf_addf(buf, "-%d", i); - if (!hashmap_get_from_hash(&state->labels, - strihash(buf->buf), - buf->buf)) - break; - } + for (i = 2; ; i++) { + strbuf_setlen(buf, len); + strbuf_addf(buf, "-%d", i); + if (!hashmap_get_from_hash(&state->labels, + strihash(buf->buf), + buf->buf)) + break; + } - label = buf->buf; + label = buf->buf; + } } FLEX_ALLOC_STR(labels_entry, label, label); - hashmap_entry_init(labels_entry, strihash(label)); - hashmap_add(&state->labels, labels_entry); + hashmap_entry_init(&labels_entry->entry, strihash(label)); + hashmap_add(&state->labels, &labels_entry->entry); FLEX_ALLOC_STR(string_entry, string, label); oidcpy(&string_entry->entry.oid, oid); @@ -3974,11 +4861,12 @@ static const char *label_oid(struct object_id *oid, const char *label, } static int make_script_with_merges(struct pretty_print_context *pp, - struct rev_info *revs, FILE *out, + struct rev_info *revs, struct strbuf *out, unsigned flags) { int keep_empty = flags & TODO_LIST_KEEP_EMPTY; int rebase_cousins = flags & TODO_LIST_REBASE_COUSINS; + int root_with_onto = flags & TODO_LIST_ROOT_WITH_ONTO; struct strbuf buf = STRBUF_INIT, oneline = STRBUF_INIT; struct strbuf label = STRBUF_INIT; struct commit_list *commits = NULL, **tail = &commits, *iter; @@ -3998,14 +4886,19 @@ static int make_script_with_merges(struct pretty_print_context *pp, oidmap_init(&commit2todo, 0); oidmap_init(&state.commit2label, 0); - hashmap_init(&state.labels, (hashmap_cmp_fn) labels_cmp, NULL, 0); + hashmap_init(&state.labels, labels_cmp, NULL, 0); strbuf_init(&state.buf, 32); if (revs->cmdline.nr && (revs->cmdline.rev[0].flags & BOTTOM)) { + struct labels_entry *onto_label_entry; struct object_id *oid = &revs->cmdline.rev[0].item->oid; FLEX_ALLOC_STR(entry, string, "onto"); oidcpy(&entry->entry.oid, oid); oidmap_put(&state.commit2label, entry); + + FLEX_ALLOC_STR(onto_label_entry, label, "onto"); + hashmap_entry_init(&onto_label_entry->entry, strihash("onto")); + hashmap_add(&state.labels, &onto_label_entry->entry); } /* @@ -4026,6 +4919,8 @@ static int make_script_with_merges(struct pretty_print_context *pp, is_empty = is_original_commit_empty(commit); if (!is_empty && (commit->object.flags & PATCHSAME)) continue; + if (is_empty && !keep_empty) + continue; strbuf_reset(&oneline); pretty_print_commit(pp, commit, &oneline); @@ -4034,11 +4929,12 @@ static int make_script_with_merges(struct pretty_print_context *pp, if (!to_merge) { /* non-merge commit: easy case */ strbuf_reset(&buf); - if (!keep_empty && is_empty) - strbuf_addf(&buf, "%c ", comment_line_char); strbuf_addf(&buf, "%s %s %s", cmd_pick, oid_to_hex(&commit->object.oid), oneline.buf); + if (is_empty) + strbuf_addf(&buf, " %c empty", + comment_line_char); FLEX_ALLOC_STR(entry, string, buf.buf); oidcpy(&entry->entry.oid, &commit->object.oid); @@ -4060,10 +4956,6 @@ static int make_script_with_merges(struct pretty_print_context *pp, else strbuf_addbuf(&label, &oneline); - for (p1 = label.buf; *p1; p1++) - if (isspace(*p1)) - *(char *)p1 = '-'; - strbuf_reset(&buf); strbuf_addf(&buf, "%s -C %s", cmd_merge, oid_to_hex(&commit->object.oid)); @@ -4102,13 +4994,11 @@ static int make_script_with_merges(struct pretty_print_context *pp, struct object_id *oid = &parent->item->object.oid; if (!oidset_contains(&interesting, oid)) continue; - if (!oidset_contains(&child_seen, oid)) - oidset_insert(&child_seen, oid); - else + if (oidset_insert(&child_seen, oid)) label_oid(oid, "branch-point", &state); } - /* Add HEAD as implict "tip of branch" */ + /* Add HEAD as implicit "tip of branch" */ if (!iter->next) tips_tail = &commit_list_insert(iter->item, tips_tail)->next; @@ -4121,7 +5011,7 @@ static int make_script_with_merges(struct pretty_print_context *pp, * gathering commits not yet shown, reversing the list on the fly, * then outputting that list (labeling revisions as needed). */ - fprintf(out, "%s onto\n", cmd_label); + strbuf_addf(out, "%s onto\n", cmd_label); for (iter = tips; iter; iter = iter->next) { struct commit_list *list = NULL, *iter2; @@ -4131,9 +5021,9 @@ static int make_script_with_merges(struct pretty_print_context *pp, entry = oidmap_get(&state.commit2label, &commit->object.oid); if (entry) - fprintf(out, "\n%c Branch %s\n", comment_line_char, entry->string); + strbuf_addf(out, "\n%c Branch %s\n", comment_line_char, entry->string); else - fprintf(out, "\n"); + strbuf_addch(out, '\n'); while (oidset_contains(&interesting, &commit->object.oid) && !oidset_contains(&shown, &commit->object.oid)) { @@ -4146,8 +5036,9 @@ static int make_script_with_merges(struct pretty_print_context *pp, } if (!commit) - fprintf(out, "%s %s\n", cmd_reset, - rebase_cousins ? "onto" : "[new root]"); + strbuf_addf(out, "%s %s\n", cmd_reset, + rebase_cousins || root_with_onto ? + "onto" : "[new root]"); else { const char *to = NULL; @@ -4160,12 +5051,12 @@ static int make_script_with_merges(struct pretty_print_context *pp, &state); if (!to || !strcmp(to, "onto")) - fprintf(out, "%s onto\n", cmd_reset); + strbuf_addf(out, "%s onto\n", cmd_reset); else { strbuf_reset(&oneline); pretty_print_commit(pp, commit, &oneline); - fprintf(out, "%s %s # %s\n", - cmd_reset, to, oneline.buf); + strbuf_addf(out, "%s %s # %s\n", + cmd_reset, to, oneline.buf); } } @@ -4174,11 +5065,11 @@ static int make_script_with_merges(struct pretty_print_context *pp, entry = oidmap_get(&commit2todo, oid); /* only show if not already upstream */ if (entry) - fprintf(out, "%s\n", entry->string); + strbuf_addf(out, "%s\n", entry->string); entry = oidmap_get(&state.commit2label, oid); if (entry) - fprintf(out, "%s %s\n", - cmd_label, entry->string); + strbuf_addf(out, "%s %s\n", + cmd_label, entry->string); oidset_insert(&shown, oid); } @@ -4194,29 +5085,29 @@ static int make_script_with_merges(struct pretty_print_context *pp, oidmap_free(&commit2todo, 1); oidmap_free(&state.commit2label, 1); - hashmap_free(&state.labels, 1); + hashmap_clear_and_free(&state.labels, struct labels_entry, entry); strbuf_release(&state.buf); return 0; } -int sequencer_make_script(FILE *out, int argc, const char **argv, - unsigned flags) +int sequencer_make_script(struct repository *r, struct strbuf *out, int argc, + const char **argv, unsigned flags) { char *format = NULL; struct pretty_print_context pp = {0}; - struct strbuf buf = STRBUF_INIT; struct rev_info revs; struct commit *commit; int keep_empty = flags & TODO_LIST_KEEP_EMPTY; const char *insn = flags & TODO_LIST_ABBREVIATE_CMDS ? "p" : "pick"; int rebase_merges = flags & TODO_LIST_REBASE_MERGES; + int reapply_cherry_picks = flags & TODO_LIST_REAPPLY_CHERRY_PICKS; - init_revisions(&revs, NULL); + repo_init_revisions(r, &revs, NULL); revs.verbose_header = 1; if (!rebase_merges) revs.max_parents = 1; - revs.cherry_mark = 1; + revs.cherry_mark = !reapply_cherry_picks; revs.limited = 1; revs.reverse = 1; revs.right_only = 1; @@ -4244,20 +5135,19 @@ int sequencer_make_script(FILE *out, int argc, const char **argv, return make_script_with_merges(&pp, &revs, out, flags); while ((commit = get_revision(&revs))) { - int is_empty = is_original_commit_empty(commit); + int is_empty = is_original_commit_empty(commit); if (!is_empty && (commit->object.flags & PATCHSAME)) continue; - strbuf_reset(&buf); - if (!keep_empty && is_empty) - strbuf_addf(&buf, "%c ", comment_line_char); - strbuf_addf(&buf, "%s %s ", insn, + if (is_empty && !keep_empty) + continue; + strbuf_addf(out, "%s %s ", insn, oid_to_hex(&commit->object.oid)); - pretty_print_commit(&pp, commit, &buf); - strbuf_addch(&buf, '\n'); - fputs(buf.buf, out); + pretty_print_commit(&pp, commit, out); + if (is_empty) + strbuf_addf(out, " %c empty", comment_line_char); + strbuf_addch(out, '\n'); } - strbuf_release(&buf); return 0; } @@ -4265,90 +5155,98 @@ int sequencer_make_script(FILE *out, int argc, const char **argv, * Add commands after pick and (series of) squash/fixup commands * in the todo list. */ -int sequencer_add_exec_commands(const char *commands) +void todo_list_add_exec_commands(struct todo_list *todo_list, + struct string_list *commands) { - const char *todo_file = rebase_path_todo(); - struct todo_list todo_list = TODO_LIST_INIT; - struct strbuf *buf = &todo_list.buf; - size_t offset = 0, commands_len = strlen(commands); - int i, insert; + struct strbuf *buf = &todo_list->buf; + size_t base_offset = buf->len; + int i, insert, nr = 0, alloc = 0; + struct todo_item *items = NULL, *base_items = NULL; + + base_items = xcalloc(commands->nr, sizeof(struct todo_item)); + for (i = 0; i < commands->nr; i++) { + size_t command_len = strlen(commands->items[i].string); - if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0) - return error(_("could not read '%s'."), todo_file); + strbuf_addstr(buf, commands->items[i].string); + strbuf_addch(buf, '\n'); - if (parse_insn_buffer(todo_list.buf.buf, &todo_list)) { - todo_list_release(&todo_list); - return error(_("unusable todo list: '%s'"), todo_file); + base_items[i].command = TODO_EXEC; + base_items[i].offset_in_buf = base_offset; + base_items[i].arg_offset = base_offset + strlen("exec "); + base_items[i].arg_len = command_len - strlen("exec "); + + base_offset += command_len + 1; } /* * Insert <commands> after every pick. Here, fixup/squash chains * are considered part of the pick, so we insert the commands *after* * those chains if there are any. + * + * As we insert the exec commands immediately after rearranging + * any fixups and before the user edits the list, a fixup chain + * can never contain comments (any comments are empty picks that + * have been commented out because the user did not specify + * --keep-empty). So, it is safe to insert an exec command + * without looking at the command following a comment. */ - insert = -1; - for (i = 0; i < todo_list.nr; i++) { - enum todo_command command = todo_list.items[i].command; - - if (insert >= 0) { - /* skip fixup/squash chains */ - if (command == TODO_COMMENT) - continue; - else if (is_fixup(command)) { - insert = i + 1; - continue; - } - strbuf_insert(buf, - todo_list.items[insert].offset_in_buf + - offset, commands, commands_len); - offset += commands_len; - insert = -1; + insert = 0; + for (i = 0; i < todo_list->nr; i++) { + enum todo_command command = todo_list->items[i].command; + if (insert && !is_fixup(command)) { + ALLOC_GROW(items, nr + commands->nr, alloc); + COPY_ARRAY(items + nr, base_items, commands->nr); + nr += commands->nr; + + insert = 0; } + ALLOC_GROW(items, nr + 1, alloc); + items[nr++] = todo_list->items[i]; + if (command == TODO_PICK || command == TODO_MERGE) - insert = i + 1; + insert = 1; } /* insert or append final <commands> */ - if (insert >= 0 && insert < todo_list.nr) - strbuf_insert(buf, todo_list.items[insert].offset_in_buf + - offset, commands, commands_len); - else if (insert >= 0 || !offset) - strbuf_add(buf, commands, commands_len); + if (insert || nr == todo_list->nr) { + ALLOC_GROW(items, nr + commands->nr, alloc); + COPY_ARRAY(items + nr, base_items, commands->nr); + nr += commands->nr; + } - i = write_message(buf->buf, buf->len, todo_file, 0); - todo_list_release(&todo_list); - return i; + free(base_items); + FREE_AND_NULL(todo_list->items); + todo_list->items = items; + todo_list->nr = nr; + todo_list->alloc = alloc; } -int transform_todos(unsigned flags) +static void todo_list_to_strbuf(struct repository *r, struct todo_list *todo_list, + struct strbuf *buf, int num, unsigned flags) { - const char *todo_file = rebase_path_todo(); - struct todo_list todo_list = TODO_LIST_INIT; - struct strbuf buf = STRBUF_INIT; struct todo_item *item; - int i; + int i, max = todo_list->nr; - if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0) - return error(_("could not read '%s'."), todo_file); + if (num > 0 && num < max) + max = num; - if (parse_insn_buffer(todo_list.buf.buf, &todo_list)) { - todo_list_release(&todo_list); - return error(_("unusable todo list: '%s'"), todo_file); - } + for (item = todo_list->items, i = 0; i < max; i++, item++) { + char cmd; - for (item = todo_list.items, i = 0; i < todo_list.nr; i++, item++) { /* if the item is not a command write it and continue */ if (item->command >= TODO_COMMENT) { - strbuf_addf(&buf, "%.*s\n", item->arg_len, item->arg); + strbuf_addf(buf, "%.*s\n", item->arg_len, + todo_item_get_arg(todo_list, item)); continue; } /* add command to the buffer */ - if (flags & TODO_LIST_ABBREVIATE_CMDS) - strbuf_addch(&buf, command_to_char(item->command)); + cmd = command_to_char(item->command); + if ((flags & TODO_LIST_ABBREVIATE_CMDS) && cmd) + strbuf_addch(buf, cmd); else - strbuf_addstr(&buf, command_to_string(item->command)); + strbuf_addstr(buf, command_to_string(item->command)); /* add commit id */ if (item->commit) { @@ -4358,185 +5256,57 @@ int transform_todos(unsigned flags) if (item->command == TODO_MERGE) { if (item->flags & TODO_EDIT_MERGE_MSG) - strbuf_addstr(&buf, " -c"); + strbuf_addstr(buf, " -c"); else - strbuf_addstr(&buf, " -C"); + strbuf_addstr(buf, " -C"); } - strbuf_addf(&buf, " %s", oid); + strbuf_addf(buf, " %s", oid); } /* add all the rest */ if (!item->arg_len) - strbuf_addch(&buf, '\n'); + strbuf_addch(buf, '\n'); else - strbuf_addf(&buf, " %.*s\n", item->arg_len, item->arg); + strbuf_addf(buf, " %.*s\n", item->arg_len, + todo_item_get_arg(todo_list, item)); } - - i = write_message(buf.buf, buf.len, todo_file, 0); - todo_list_release(&todo_list); - return i; } -enum check_level { - CHECK_IGNORE = 0, CHECK_WARN, CHECK_ERROR -}; - -static enum check_level get_missing_commit_check_level(void) +int todo_list_write_to_file(struct repository *r, struct todo_list *todo_list, + const char *file, const char *shortrevisions, + const char *shortonto, int num, unsigned flags) { - const char *value; - - if (git_config_get_value("rebase.missingcommitscheck", &value) || - !strcasecmp("ignore", value)) - return CHECK_IGNORE; - if (!strcasecmp("warn", value)) - return CHECK_WARN; - if (!strcasecmp("error", value)) - return CHECK_ERROR; - warning(_("unrecognized setting %s for option " - "rebase.missingCommitsCheck. Ignoring."), value); - return CHECK_IGNORE; -} - -define_commit_slab(commit_seen, unsigned char); -/* - * Check if the user dropped some commits by mistake - * Behaviour determined by rebase.missingCommitsCheck. - * Check if there is an unrecognized command or a - * bad SHA-1 in a command. - */ -int check_todo_list(void) -{ - enum check_level check_level = get_missing_commit_check_level(); - struct strbuf todo_file = STRBUF_INIT; - struct todo_list todo_list = TODO_LIST_INIT; - struct strbuf missing = STRBUF_INIT; - int advise_to_edit_todo = 0, res = 0, i; - struct commit_seen commit_seen; - - init_commit_seen(&commit_seen); - - strbuf_addstr(&todo_file, rebase_path_todo()); - if (strbuf_read_file_or_whine(&todo_list.buf, todo_file.buf) < 0) { - res = -1; - goto leave_check; - } - advise_to_edit_todo = res = - parse_insn_buffer(todo_list.buf.buf, &todo_list); - - if (res || check_level == CHECK_IGNORE) - goto leave_check; - - /* Mark the commits in git-rebase-todo as seen */ - for (i = 0; i < todo_list.nr; i++) { - struct commit *commit = todo_list.items[i].commit; - if (commit) - *commit_seen_at(&commit_seen, commit) = 1; - } - - todo_list_release(&todo_list); - strbuf_addstr(&todo_file, ".backup"); - if (strbuf_read_file_or_whine(&todo_list.buf, todo_file.buf) < 0) { - res = -1; - goto leave_check; - } - strbuf_release(&todo_file); - res = !!parse_insn_buffer(todo_list.buf.buf, &todo_list); - - /* Find commits in git-rebase-todo.backup yet unseen */ - for (i = todo_list.nr - 1; i >= 0; i--) { - struct todo_item *item = todo_list.items + i; - struct commit *commit = item->commit; - if (commit && !*commit_seen_at(&commit_seen, commit)) { - strbuf_addf(&missing, " - %s %.*s\n", - short_commit_name(commit), - item->arg_len, item->arg); - *commit_seen_at(&commit_seen, commit) = 1; - } - } - - /* Warn about missing commits */ - if (!missing.len) - goto leave_check; - - if (check_level == CHECK_ERROR) - advise_to_edit_todo = res = 1; - - fprintf(stderr, - _("Warning: some commits may have been dropped accidentally.\n" - "Dropped commits (newer to older):\n")); - - /* Make the list user-friendly and display */ - fputs(missing.buf, stderr); - strbuf_release(&missing); + int res; + struct strbuf buf = STRBUF_INIT; - fprintf(stderr, _("To avoid this message, use \"drop\" to " - "explicitly remove a commit.\n\n" - "Use 'git config rebase.missingCommitsCheck' to change " - "the level of warnings.\n" - "The possible behaviours are: ignore, warn, error.\n\n")); + todo_list_to_strbuf(r, todo_list, &buf, num, flags); + if (flags & TODO_LIST_APPEND_TODO_HELP) + append_todo_help(count_commands(todo_list), + shortrevisions, shortonto, &buf); -leave_check: - clear_commit_seen(&commit_seen); - strbuf_release(&todo_file); - todo_list_release(&todo_list); - - if (advise_to_edit_todo) - fprintf(stderr, - _("You can fix this with 'git rebase --edit-todo' " - "and then run 'git rebase --continue'.\n" - "Or you can abort the rebase with 'git rebase" - " --abort'.\n")); + res = write_message(buf.buf, buf.len, file, 0); + strbuf_release(&buf); return res; } -static int rewrite_file(const char *path, const char *buf, size_t len) -{ - int rc = 0; - int fd = open(path, O_WRONLY | O_TRUNC); - if (fd < 0) - return error_errno(_("could not open '%s' for writing"), path); - if (write_in_full(fd, buf, len) < 0) - rc = error_errno(_("could not write to '%s'"), path); - if (close(fd) && !rc) - rc = error_errno(_("could not close '%s'"), path); - return rc; -} - /* skip picking commits whose parents are unchanged */ -int skip_unnecessary_picks(void) +static int skip_unnecessary_picks(struct repository *r, + struct todo_list *todo_list, + struct object_id *base_oid) { - const char *todo_file = rebase_path_todo(); - struct strbuf buf = STRBUF_INIT; - struct todo_list todo_list = TODO_LIST_INIT; - struct object_id onto_oid, *oid = &onto_oid, *parent_oid; - int fd, i; - - if (!read_oneliner(&buf, rebase_path_onto(), 0)) - return error(_("could not read 'onto'")); - if (get_oid(buf.buf, &onto_oid)) { - strbuf_release(&buf); - return error(_("need a HEAD to fixup")); - } - strbuf_release(&buf); - - if (strbuf_read_file_or_whine(&todo_list.buf, todo_file) < 0) - return -1; - if (parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) { - todo_list_release(&todo_list); - return -1; - } + struct object_id *parent_oid; + int i; - for (i = 0; i < todo_list.nr; i++) { - struct todo_item *item = todo_list.items + i; + for (i = 0; i < todo_list->nr; i++) { + struct todo_item *item = todo_list->items + i; if (item->command >= TODO_NOOP) continue; if (item->command != TODO_PICK) break; if (parse_commit(item->commit)) { - todo_list_release(&todo_list); return error(_("could not parse commit '%s'"), oid_to_hex(&item->commit->object.oid)); } @@ -4545,46 +5315,124 @@ int skip_unnecessary_picks(void) if (item->commit->parents->next) break; /* merge commit */ parent_oid = &item->commit->parents->item->object.oid; - if (hashcmp(parent_oid->hash, oid->hash)) + if (!oideq(parent_oid, base_oid)) break; - oid = &item->commit->object.oid; + oidcpy(base_oid, &item->commit->object.oid); } if (i > 0) { - int offset = get_item_line_offset(&todo_list, i); const char *done_path = rebase_path_done(); - fd = open(done_path, O_CREAT | O_WRONLY | O_APPEND, 0666); - if (fd < 0) { - error_errno(_("could not open '%s' for writing"), - done_path); - todo_list_release(&todo_list); - return -1; - } - if (write_in_full(fd, todo_list.buf.buf, offset) < 0) { + if (todo_list_write_to_file(r, todo_list, done_path, NULL, NULL, i, 0)) { error_errno(_("could not write to '%s'"), done_path); - todo_list_release(&todo_list); - close(fd); return -1; } - close(fd); - if (rewrite_file(rebase_path_todo(), todo_list.buf.buf + offset, - todo_list.buf.len - offset) < 0) { - todo_list_release(&todo_list); - return -1; - } + MOVE_ARRAY(todo_list->items, todo_list->items + i, todo_list->nr - i); + todo_list->nr -= i; + todo_list->current = 0; + todo_list->done_nr += i; - todo_list.current = i; - if (is_fixup(peek_command(&todo_list, 0))) - record_in_rewritten(oid, peek_command(&todo_list, 0)); + if (is_fixup(peek_command(todo_list, 0))) + record_in_rewritten(base_oid, peek_command(todo_list, 0)); } - todo_list_release(&todo_list); - printf("%s\n", oid_to_hex(oid)); - return 0; } +int complete_action(struct repository *r, struct replay_opts *opts, unsigned flags, + const char *shortrevisions, const char *onto_name, + struct commit *onto, const struct object_id *orig_head, + struct string_list *commands, unsigned autosquash, + struct todo_list *todo_list) +{ + char shortonto[GIT_MAX_HEXSZ + 1]; + const char *todo_file = rebase_path_todo(); + struct todo_list new_todo = TODO_LIST_INIT; + struct strbuf *buf = &todo_list->buf, buf2 = STRBUF_INIT; + struct object_id oid = onto->object.oid; + int res; + + find_unique_abbrev_r(shortonto, &oid, DEFAULT_ABBREV); + + if (buf->len == 0) { + struct todo_item *item = append_new_todo(todo_list); + item->command = TODO_NOOP; + item->commit = NULL; + item->arg_len = item->arg_offset = item->flags = item->offset_in_buf = 0; + } + + if (autosquash && todo_list_rearrange_squash(todo_list)) + return -1; + + if (commands->nr) + todo_list_add_exec_commands(todo_list, commands); + + if (count_commands(todo_list) == 0) { + apply_autostash(rebase_path_autostash()); + sequencer_remove_state(opts); + + return error(_("nothing to do")); + } + + res = edit_todo_list(r, todo_list, &new_todo, shortrevisions, + shortonto, flags); + if (res == -1) + return -1; + else if (res == -2) { + apply_autostash(rebase_path_autostash()); + sequencer_remove_state(opts); + + return -1; + } else if (res == -3) { + apply_autostash(rebase_path_autostash()); + sequencer_remove_state(opts); + todo_list_release(&new_todo); + + return error(_("nothing to do")); + } else if (res == -4) { + checkout_onto(r, opts, onto_name, &onto->object.oid, orig_head); + todo_list_release(&new_todo); + + return -1; + } + + /* Expand the commit IDs */ + todo_list_to_strbuf(r, &new_todo, &buf2, -1, 0); + strbuf_swap(&new_todo.buf, &buf2); + strbuf_release(&buf2); + new_todo.total_nr -= new_todo.nr; + if (todo_list_parse_insn_buffer(r, new_todo.buf.buf, &new_todo) < 0) + BUG("invalid todo list after expanding IDs:\n%s", + new_todo.buf.buf); + + if (opts->allow_ff && skip_unnecessary_picks(r, &new_todo, &oid)) { + todo_list_release(&new_todo); + return error(_("could not skip unnecessary pick commands")); + } + + if (todo_list_write_to_file(r, &new_todo, todo_file, NULL, NULL, -1, + flags & ~(TODO_LIST_SHORTEN_IDS))) { + todo_list_release(&new_todo); + return error_errno(_("could not write '%s'"), todo_file); + } + + res = -1; + + if (checkout_onto(r, opts, onto_name, &oid, orig_head)) + goto cleanup; + + if (require_clean_work_tree(r, "rebase", "", 1, 1)) + goto cleanup; + + todo_list_write_total_nr(&new_todo); + res = pick_commits(r, &new_todo, opts); + +cleanup: + todo_list_release(&new_todo); + + return res; +} + struct subject2item_entry { struct hashmap_entry entry; int i; @@ -4592,9 +5440,15 @@ struct subject2item_entry { }; static int subject2item_cmp(const void *fndata, - const struct subject2item_entry *a, - const struct subject2item_entry *b, const void *key) + const struct hashmap_entry *eptr, + const struct hashmap_entry *entry_or_key, + const void *key) { + const struct subject2item_entry *a, *b; + + a = container_of(eptr, const struct subject2item_entry, entry); + b = container_of(entry_or_key, const struct subject2item_entry, entry); + return key ? strcmp(a->subject, key) : strcmp(a->subject, b->subject); } @@ -4609,21 +5463,13 @@ define_commit_slab(commit_todo_item, struct todo_item *); * message will have to be retrieved from the commit (as the oneline in the * script cannot be trusted) in order to normalize the autosquash arrangement. */ -int rearrange_squash(void) +int todo_list_rearrange_squash(struct todo_list *todo_list) { - const char *todo_file = rebase_path_todo(); - struct todo_list todo_list = TODO_LIST_INIT; struct hashmap subject2item; - int res = 0, rearranged = 0, *next, *tail, i; + int rearranged = 0, *next, *tail, i, nr = 0, alloc = 0; char **subjects; struct commit_todo_item commit_todo; - - if (strbuf_read_file_or_whine(&todo_list.buf, todo_file) < 0) - return -1; - if (parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) { - todo_list_release(&todo_list); - return -1; - } + struct todo_item *items = NULL; init_commit_todo_item(&commit_todo); /* @@ -4635,14 +5481,13 @@ int rearrange_squash(void) * In that case, last[i] will indicate the index of the latest item to * be moved to appear after the i'th. */ - hashmap_init(&subject2item, (hashmap_cmp_fn) subject2item_cmp, - NULL, todo_list.nr); - ALLOC_ARRAY(next, todo_list.nr); - ALLOC_ARRAY(tail, todo_list.nr); - ALLOC_ARRAY(subjects, todo_list.nr); - for (i = 0; i < todo_list.nr; i++) { + hashmap_init(&subject2item, subject2item_cmp, NULL, todo_list->nr); + ALLOC_ARRAY(next, todo_list->nr); + ALLOC_ARRAY(tail, todo_list->nr); + ALLOC_ARRAY(subjects, todo_list->nr); + for (i = 0; i < todo_list->nr; i++) { struct strbuf buf = STRBUF_INIT; - struct todo_item *item = todo_list.items + i; + struct todo_item *item = todo_list->items + i; const char *commit_buffer, *subject, *p; size_t subject_len; int i2 = -1; @@ -4655,7 +5500,6 @@ int rearrange_squash(void) } if (is_fixup(item->command)) { - todo_list_release(&todo_list); clear_commit_todo_item(&commit_todo); return error(_("the script was already rearranged.")); } @@ -4663,7 +5507,7 @@ int rearrange_squash(void) *commit_todo_item_at(&commit_todo, item->commit) = item; parse_commit(item->commit); - commit_buffer = get_commit_buffer(item->commit, NULL); + commit_buffer = logmsg_reencode(item->commit, NULL, "UTF-8"); find_commit_subject(commit_buffer, &subject); format_subject(&buf, subject, " "); subject = subjects[i] = strbuf_detach(&buf, &subject_len); @@ -4680,8 +5524,11 @@ int rearrange_squash(void) break; } - if ((entry = hashmap_get_from_hash(&subject2item, - strhash(p), p))) + entry = hashmap_get_entry_from_hash(&subject2item, + strhash(p), p, + struct subject2item_entry, + entry); + if (entry) /* found by title */ i2 = entry->i; else if (!strchr(p, ' ') && @@ -4690,7 +5537,7 @@ int rearrange_squash(void) *commit_todo_item_at(&commit_todo, commit2)) /* found by commit name */ i2 = *commit_todo_item_at(&commit_todo, commit2) - - todo_list.items; + - todo_list->items; else { /* copy can be a prefix of the commit subject */ for (i2 = 0; i2 < i; i2++) @@ -4703,28 +5550,30 @@ int rearrange_squash(void) } if (i2 >= 0) { rearranged = 1; - todo_list.items[i].command = + todo_list->items[i].command = starts_with(subject, "fixup!") ? TODO_FIXUP : TODO_SQUASH; - if (next[i2] < 0) + if (tail[i2] < 0) { + next[i] = next[i2]; next[i2] = i; - else + } else { + next[i] = next[tail[i2]]; next[tail[i2]] = i; + } tail[i2] = i; } else if (!hashmap_get_from_hash(&subject2item, strhash(subject), subject)) { FLEX_ALLOC_MEM(entry, subject, subject, subject_len); entry->i = i; - hashmap_entry_init(entry, strhash(entry->subject)); - hashmap_put(&subject2item, entry); + hashmap_entry_init(&entry->entry, + strhash(entry->subject)); + hashmap_put(&subject2item, &entry->entry); } } if (rearranged) { - struct strbuf buf = STRBUF_INIT; - - for (i = 0; i < todo_list.nr; i++) { - enum todo_command command = todo_list.items[i].command; + for (i = 0; i < todo_list->nr; i++) { + enum todo_command command = todo_list->items[i].command; int cur = i; /* @@ -4735,37 +5584,47 @@ int rearrange_squash(void) continue; while (cur >= 0) { - const char *bol = - get_item_line(&todo_list, cur); - const char *eol = - get_item_line(&todo_list, cur + 1); - - /* replace 'pick', by 'fixup' or 'squash' */ - command = todo_list.items[cur].command; - if (is_fixup(command)) { - strbuf_addstr(&buf, - todo_command_info[command].str); - bol += strcspn(bol, " \t"); - } - - strbuf_add(&buf, bol, eol - bol); - + ALLOC_GROW(items, nr + 1, alloc); + items[nr++] = todo_list->items[cur]; cur = next[cur]; } } - res = rewrite_file(todo_file, buf.buf, buf.len); - strbuf_release(&buf); + FREE_AND_NULL(todo_list->items); + todo_list->items = items; + todo_list->nr = nr; + todo_list->alloc = alloc; } free(next); free(tail); - for (i = 0; i < todo_list.nr; i++) + for (i = 0; i < todo_list->nr; i++) free(subjects[i]); free(subjects); - hashmap_free(&subject2item, 1); - todo_list_release(&todo_list); + hashmap_clear_and_free(&subject2item, struct subject2item_entry, entry); clear_commit_todo_item(&commit_todo); - return res; + + return 0; +} + +int sequencer_determine_whence(struct repository *r, enum commit_whence *whence) +{ + if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD")) { + struct object_id cherry_pick_head, rebase_head; + + if (file_exists(git_path_seq_dir())) + *whence = FROM_CHERRY_PICK_MULTI; + if (file_exists(rebase_path()) && + !get_oid("REBASE_HEAD", &rebase_head) && + !get_oid("CHERRY_PICK_HEAD", &cherry_pick_head) && + oideq(&rebase_head, &cherry_pick_head)) + *whence = FROM_REBASE_PICK; + else + *whence = FROM_CHERRY_PICK_SINGLE; + + return 1; + } + + return 0; } |