diff options
Diffstat (limited to 'sequencer.c')
| -rw-r--r-- | sequencer.c | 544 |
1 files changed, 374 insertions, 170 deletions
diff --git a/sequencer.c b/sequencer.c index 4034c0461b..00cefd129e 100644 --- a/sequencer.c +++ b/sequencer.c @@ -2,6 +2,7 @@ #include "config.h" #include "lockfile.h" #include "dir.h" +#include "object-store.h" #include "object.h" #include "commit.h" #include "sequencer.h" @@ -27,7 +28,9 @@ #include "worktree.h" #include "oidmap.h" #include "oidset.h" +#include "commit-slab.h" #include "alias.h" +#include "commit-reach.h" #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" @@ -61,12 +64,12 @@ static GIT_PATH_FUNC(rebase_path_done, "rebase-merge/done") * The file to keep track of how many commands were already processed (e.g. * for the prompt). */ -static GIT_PATH_FUNC(rebase_path_msgnum, "rebase-merge/msgnum"); +static GIT_PATH_FUNC(rebase_path_msgnum, "rebase-merge/msgnum") /* * The file to keep track of how many commands are to be processed in total * (e.g. for the prompt). */ -static GIT_PATH_FUNC(rebase_path_msgtotal, "rebase-merge/end"); +static GIT_PATH_FUNC(rebase_path_msgtotal, "rebase-merge/end") /* * The commit message that is planned to be used for any changes that * need to be committed following a user interaction. @@ -175,6 +178,7 @@ static int git_sequencer_config(const char *k, const char *v, void *cb) warning(_("invalid commit message cleanup mode '%s'"), s); + free((char *)s); return status; } @@ -222,13 +226,16 @@ 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; - trailer_info_get(&info, sb->buf); + opts.no_divider = 1; + + trailer_info_get(&info, sb->buf, &opts); if (info.trailer_start == info.trailer_end) return 0; @@ -304,7 +311,7 @@ static const char *action_name(const struct replay_opts *opts) case REPLAY_INTERACTIVE_REBASE: return N_("rebase -i"); } - die(_("Unknown action: %d"), opts->action); + die(_("unknown action: %d"), opts->action); } struct commit_message { @@ -355,7 +362,7 @@ 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()); + unlink(git_path_cherry_pick_head(the_repository)); return; } @@ -430,7 +437,7 @@ static int read_oneliner(struct strbuf *buf, static struct tree *empty_tree(void) { - return lookup_tree(the_hash_algo->empty_tree); + return lookup_tree(the_repository, the_repository->hash_algo->empty_tree); } static int error_dirty_index(struct replay_opts *opts) @@ -591,7 +598,7 @@ static int is_index_unchanged(void) if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, &head_oid, NULL)) return error(_("could not resolve HEAD commit")); - head_commit = lookup_commit(&head_oid); + head_commit = lookup_commit(the_repository, &head_oid); /* * If head_commit is NULL, check_commit, called from @@ -607,7 +614,7 @@ static int is_index_unchanged(void) if (!(cache_tree_oid = get_cache_tree_oid())) 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) @@ -636,7 +643,7 @@ 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)) @@ -644,18 +651,37 @@ 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; } + +/* + * write_author_script() used to fail to terminate the last line with a "'" and + * also escaped "'" incorrectly as "'\\\\''" rather than "'\\''". We check for + * the terminating "'" on the last line to see how "'" has been escaped in case + * git was upgraded while rebase was stopped. + */ +static int quoting_is_broken(const char *s, size_t n) +{ + /* Skip any empty lines in case the file was hand edited */ + while (n > 0 && s[--n] == '\n') + ; /* empty */ + if (n > 0 && s[n] != '\'') + return 1; + + return 0; +} + /* * Read a list of environment variable assignments (such as the author-script * file) into an environment block. Returns -1 on error, 0 otherwise. @@ -663,14 +689,18 @@ missing_author: static int read_env_script(struct argv_array *env) { struct strbuf script = STRBUF_INIT; - int i, count = 0; - char *p, *p2; + int i, count = 0, sq_bug; + const char *p2; + char *p; if (strbuf_read_file(&script, rebase_path_author_script(), 256) <= 0) return -1; - + /* write_author_script() used to quote incorrectly */ + sq_bug = quoting_is_broken(script.buf, script.len); for (p = script.buf; *p; p++) - if (skip_prefix(p, "'\\\\''", (const char **)&p2)) + if (sq_bug && skip_prefix(p, "'\\\\''", &p2)) + strbuf_splice(&script, p - script.buf, p2 - p, "'", 1); + else if (skip_prefix(p, "'\\''", &p2)) strbuf_splice(&script, p - script.buf, p2 - p, "'", 1); else if (*p == '\'') strbuf_splice(&script, p-- - script.buf, 1, "", 0); @@ -705,43 +735,51 @@ static const char *read_author_ident(struct strbuf *buf) const char *keys[] = { "GIT_AUTHOR_NAME=", "GIT_AUTHOR_EMAIL=", "GIT_AUTHOR_DATE=" }; - char *in, *out, *eol; - int i = 0, len; + 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 = out = buf->buf; i < 3 && in - buf->buf < buf->len; i++) { + 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'", + warning(_("could not parse '%s' (looking for '%s')"), rebase_path_author_script(), keys[i]); return NULL; } eol = strchrnul(in, '\n'); *eol = '\0'; - sq_dequote(in); - len = strlen(in); - - if (i > 0) /* separate values by spaces */ - *(out++) = ' '; - if (i == 1) /* email needs to be surrounded by <...> */ - *(out++) = '<'; - memmove(out, in, len); - out += len; - if (i == 1) /* email needs to be surrounded by <...> */ - *(out++) = '>'; + 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')", + warning(_("could not parse '%s' (looking for '%s')"), rebase_path_author_script(), keys[i]); return NULL; } - buf->len = out - buf->buf; + /* 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; + } + + 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; } @@ -786,11 +824,18 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts, 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; + const char *author = NULL; struct object_id root_commit, *cache_tree_oid; int res = 0; + if (is_rebase_i(opts)) { + author = read_author_ident(&script); + if (!author) { + strbuf_release(&script); + return -1; + } + } + if (!defmsg) BUG("root commit without message"); @@ -1098,7 +1143,7 @@ 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(oid); + commit = lookup_commit(the_repository, oid); if (!commit) die(_("couldn't look up newly created commit")); if (parse_commit(commit)) @@ -1173,10 +1218,10 @@ static int parse_head(struct commit **head) if (get_oid("HEAD", &oid)) { current_head = NULL; } else { - current_head = lookup_commit_reference(&oid); + current_head = lookup_commit_reference(the_repository, &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)); } @@ -1241,14 +1286,14 @@ static int try_to_commit(struct strbuf *msg, const char *author, commit_list_insert(current_head, &parents); } - if (write_cache_as_tree(&tree, 0, NULL)) { + if (write_index_as_tree(&tree, &the_index, get_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)) { + if (!(flags & ALLOW_EMPTY) && oideq(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; } @@ -1322,8 +1367,8 @@ static int do_commit(const char *msg_file, const char *author, &oid); strbuf_release(&sb); if (!res) { - unlink(git_path_cherry_pick_head()); - unlink(git_path_merge_msg()); + unlink(git_path_cherry_pick_head(the_repository)); + unlink(git_path_merge_msg(the_repository)); if (!is_rebase_i(opts)) print_commit_summary(NULL, &oid, SUMMARY_SHOW_AUTHOR_DATE); @@ -1353,7 +1398,7 @@ 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)); } /* @@ -1442,7 +1487,7 @@ static const char *command_to_string(const enum todo_command command) { if (command < TODO_COMMENT) return todo_command_info[command].str; - die("Unknown command: %d", command); + die(_("unknown command: %d"), command); } static char command_to_char(const enum todo_command command) @@ -1508,7 +1553,7 @@ 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(&head))) + if (!(head_commit = lookup_commit_reference(the_repository, &head))) return error(_("could not read HEAD")); if (!(head_message = get_commit_buffer(head_commit, NULL))) return error(_("could not read HEAD's commit message")); @@ -1540,13 +1585,13 @@ static int update_squash_messages(enum todo_command command, unlink(rebase_path_fixup_msg()); strbuf_addf(&buf, "\n%c ", comment_line_char); strbuf_addf(&buf, _("This is the commit message #%d:"), - ++opts->current_fixup_count); + ++opts->current_fixup_count + 1); strbuf_addstr(&buf, "\n\n"); strbuf_addstr(&buf, body); } else if (command == TODO_FIXUP) { strbuf_addf(&buf, "\n%c ", comment_line_char); strbuf_addf(&buf, _("The commit message #%d will be skipped:"), - ++opts->current_fixup_count); + ++opts->current_fixup_count + 1); strbuf_addstr(&buf, "\n\n"); strbuf_add_commented_lines(&buf, body, strlen(body)); } else @@ -1611,7 +1656,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, struct replay_opts *opts, int final_fixup) { unsigned int flags = opts->edit ? EDIT_MSG : 0; - const char *msg_file = opts->edit ? NULL : git_path_merge_msg(); + const char *msg_file = opts->edit ? NULL : git_path_merge_msg(the_repository); struct object_id head; struct commit *base, *next, *parent; const char *base_label, *next_label; @@ -1627,13 +1672,13 @@ 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_cache_as_tree(&head, 0, NULL)) + if (write_index_as_tree(&head, &the_index, get_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; @@ -1676,7 +1721,7 @@ 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); @@ -1753,12 +1798,12 @@ 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(); + const char *dest = git_path_squash_msg(the_repository); 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()); + unlink(git_path_merge_msg(the_repository)); msg_file = dest; flags |= EDIT_MSG; } @@ -1773,15 +1818,16 @@ static int do_pick_commit(enum todo_command command, struct commit *commit, res = do_recursive_merge(base, next, base_label, next_label, &head, &msgbuf, opts); if (res < 0) - return res; + goto leave; + res |= write_message(msgbuf.buf, msgbuf.len, - git_path_merge_msg(), 0); + git_path_merge_msg(the_repository), 0); } else { struct commit_list *common = NULL; struct commit_list *remotes = NULL; res = write_message(msgbuf.buf, msgbuf.len, - git_path_merge_msg(), 0); + git_path_merge_msg(the_repository), 0); commit_list_insert(base, &common); commit_list_insert(next, &remotes); @@ -1860,8 +1906,6 @@ static int prepare_revs(struct replay_opts *opts) if (prepare_revision_walk(opts->revs)) return error(_("revision walk setup failed")); - if (!opts->revs->commits) - return error(_("empty commit set passed")); return 0; } @@ -2005,7 +2049,7 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol) if (status < 0) return -1; - item->commit = lookup_commit_reference(&commit_oid); + item->commit = lookup_commit_reference(the_repository, &commit_oid); return !item->commit; } @@ -2203,6 +2247,7 @@ static int populate_opts_cb(const char *key, const char *value, void *data) static void read_strategy_opts(struct replay_opts *opts, struct strbuf *buf) { int i; + char *strategy_opts_string; strbuf_reset(buf); if (!read_oneliner(buf, rebase_path_strategy(), 0)) @@ -2211,7 +2256,11 @@ static void read_strategy_opts(struct replay_opts *opts, struct strbuf *buf) if (!read_oneliner(buf, rebase_path_strategy_opts(), 0)) return; - opts->xopts_nr = split_cmdline(buf->buf, (const char ***)&opts->xopts); + 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++) { const char *arg = opts->xopts[i]; @@ -2314,6 +2363,10 @@ static int walk_revs_populate_todo(struct todo_list *todo_list, short_commit_name(commit), subject_len, subject); unuse_commit_buffer(commit, commit_buffer); } + + if (!todo_list->nr) + return error(_("empty commit set passed")); + return 0; } @@ -2373,7 +2426,7 @@ 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) @@ -2391,8 +2444,8 @@ static int rollback_single_pick(void) { struct object_id head_oid; - if (!file_exists(git_path_cherry_pick_head()) && - !file_exists(git_path_revert_head())) + if (!file_exists(git_path_cherry_pick_head(the_repository)) && + !file_exists(git_path_revert_head(the_repository))) return error(_("no cherry-pick or revert in progress")); if (read_ref_full("HEAD", 0, &head_oid, NULL)) return error(_("cannot resolve HEAD")); @@ -2590,23 +2643,39 @@ static int error_with_patch(struct commit *commit, const char *subject, int subject_len, struct replay_opts *opts, int exit_code, int to_amend) { - if (make_patch(commit, opts)) - return -1; + if (commit) { + if (make_patch(commit, opts)) + return -1; + } else if (copy_file(rebase_path_message(), + git_path_merge_msg(the_repository), 0666)) + return error(_("unable to copy '%s' to '%s'"), + git_path_merge_msg(the_repository), rebase_path_message()); if (to_amend) { if (intend_to_amend()) return -1; - fprintf(stderr, "You can amend the commit now, with\n" - "\n" - " git commit --amend %s\n" - "\n" - "Once you are satisfied with your changes, run\n" - "\n" - " git rebase --continue\n", gpg_sign_opt_quoted(opts)); - } else if (exit_code) - fprintf(stderr, "Could not apply %s... %.*s\n", - short_commit_name(commit), subject_len, subject); + fprintf(stderr, + _("You can amend the commit now, with\n" + "\n" + " git commit --amend %s\n" + "\n" + "Once you are satisfied with your changes, run\n" + "\n" + " git rebase --continue\n"), + gpg_sign_opt_quoted(opts)); + } else if (exit_code) { + if (commit) + fprintf_ln(stderr, _("Could not apply %s... %.*s"), + short_commit_name(commit), subject_len, subject); + else + /* + * We don't have the hash of the parent so + * just print the line from the todo file. + */ + fprintf_ln(stderr, _("Could not merge %.*s"), + subject_len, subject); + } return exit_code; } @@ -2617,10 +2686,11 @@ static int error_failed_squash(struct commit *commit, 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()); - if (copy_file(git_path_merge_msg(), rebase_path_message(), 0666)) + unlink(git_path_merge_msg(the_repository)); + if (copy_file(git_path_merge_msg(the_repository), rebase_path_message(), 0666)) return error(_("could not copy '%s' to '%s'"), - rebase_path_message(), git_path_merge_msg()); + rebase_path_message(), + git_path_merge_msg(the_repository)); return error_with_patch(commit, subject, subject_len, opts, 1, 0); } @@ -2633,6 +2703,8 @@ static int do_exec(const char *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())); status = run_command_v_opt_cd_env(child_argv, RUN_USING_SHELL, NULL, child_env.argv); @@ -2716,7 +2788,7 @@ static int do_label(const char *name, int len) struct object_id head_oid; if (len == 1 && *name == '#') - return error("Illegal label name: '%.*s'", len, name); + 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); @@ -2838,6 +2910,26 @@ static int do_reset(const char *name, int len, struct replay_opts *opts) return ret; } +static struct commit *lookup_label(const char *label, int len, + struct strbuf *buf) +{ + struct commit *commit; + + strbuf_reset(buf); + strbuf_addf(buf, "refs/rewritten/%.*s", len, label); + commit = lookup_commit_reference_by_name(buf->buf); + if (!commit) { + /* fall back to non-rewritten ref or commit */ + strbuf_splice(buf, 0, strlen("refs/rewritten/"), "", 0); + commit = lookup_commit_reference_by_name(buf->buf); + } + + if (!commit) + error(_("could not resolve '%s'"), buf->buf); + + return commit; +} + static int do_merge(struct commit *commit, const char *arg, int arg_len, int flags, struct replay_opts *opts) { @@ -2846,8 +2938,9 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, struct strbuf ref_name = STRBUF_INIT; struct commit *head_commit, *merge_commit, *i; struct commit_list *bases, *j, *reversed = NULL; + struct commit_list *to_merge = NULL, **tail = &to_merge; struct merge_options o; - int merge_arg_len, oneline_offset, can_fast_forward, ret; + int merge_arg_len, oneline_offset, can_fast_forward, ret, k; static struct lock_file lock; const char *p; @@ -2862,38 +2955,51 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, goto leave_merge; } - oneline_offset = arg_len; - merge_arg_len = strcspn(arg, " \t\n"); - p = arg + merge_arg_len; - p += strspn(p, " \t\n"); - if (*p == '#' && (!p[1] || isspace(p[1]))) { - p += 1 + strspn(p + 1, " \t\n"); - oneline_offset = p - arg; - } else if (p - arg < arg_len) - BUG("octopus merges are not supported yet: '%s'", p); - - strbuf_addf(&ref_name, "refs/rewritten/%.*s", merge_arg_len, arg); - merge_commit = lookup_commit_reference_by_name(ref_name.buf); - if (!merge_commit) { - /* fall back to non-rewritten ref or commit */ - strbuf_splice(&ref_name, 0, strlen("refs/rewritten/"), "", 0); - merge_commit = lookup_commit_reference_by_name(ref_name.buf); + /* + * For octopus merges, the arg starts with the list of revisions to be + * merged. The list is optionally followed by '#' and the oneline. + */ + merge_arg_len = oneline_offset = arg_len; + for (p = arg; p - arg < arg_len; p += strspn(p, " \t\n")) { + if (!*p) + break; + if (*p == '#' && (!p[1] || isspace(p[1]))) { + p += 1 + strspn(p + 1, " \t\n"); + oneline_offset = p - arg; + break; + } + k = strcspn(p, " \t\n"); + if (!k) + continue; + merge_commit = lookup_label(p, k, &ref_name); + if (!merge_commit) { + ret = error(_("unable to parse '%.*s'"), k, p); + goto leave_merge; + } + tail = &commit_list_insert(merge_commit, tail)->next; + p += k; + merge_arg_len = p - arg; } - if (!merge_commit) { - ret = error(_("could not resolve '%s'"), ref_name.buf); + if (!to_merge) { + ret = error(_("nothing to merge: '%.*s'"), arg_len, arg); goto leave_merge; } 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. */ rollback_lock_file(&lock); - ret = fast_forward_to(&merge_commit->object.oid, - &head_commit->object.oid, 0, opts); + if (to_merge->next) + ret = error(_("octopus merge cannot be executed on " + "top of a [new root]")); + else + ret = fast_forward_to(&to_merge->item->object.oid, + &head_commit->object.oid, 0, + opts); goto leave_merge; } @@ -2910,11 +3016,11 @@ 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(), 0); + ret = write_message(body, len, git_path_merge_msg(the_repository), 0); unuse_commit_buffer(commit, message); if (ret) { error_errno(_("could not write '%s'"), - git_path_merge_msg()); + git_path_merge_msg(the_repository)); goto leave_merge; } } else { @@ -2929,17 +3035,18 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, p = arg + oneline_offset; len = arg_len - oneline_offset; } else { - strbuf_addf(&buf, "Merge branch '%.*s'", + strbuf_addf(&buf, "Merge %s '%.*s'", + to_merge->next ? "branches" : "branch", merge_arg_len, arg); p = buf.buf; len = buf.len; } - ret = write_message(p, len, git_path_merge_msg(), 0); + ret = write_message(p, len, git_path_merge_msg(the_repository), 0); strbuf_release(&buf); if (ret) { error_errno(_("could not write '%s'"), - git_path_merge_msg()); + git_path_merge_msg(the_repository)); goto leave_merge; } } @@ -2949,39 +3056,87 @@ 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 the merge head is different from the original one, we cannot + * If any merge head is different from the original one, we cannot * fast-forward. */ if (can_fast_forward) { - struct commit_list *second_parent = commit->parents->next; + struct commit_list *p = commit->parents->next; - if (second_parent && !second_parent->next && - oidcmp(&merge_commit->object.oid, - &second_parent->item->object.oid)) + for (j = to_merge; j && p; j = j->next, p = p->next) + if (!oideq(&j->item->object.oid, + &p->item->object.oid)) { + can_fast_forward = 0; + break; + } + /* + * If the number of merge heads differs from the original merge + * commit, we cannot fast-forward. + */ + if (j || p) can_fast_forward = 0; } - if (can_fast_forward && commit->parents->next && - !commit->parents->next->next && - !oidcmp(&commit->parents->next->item->object.oid, - &merge_commit->object.oid)) { + if (can_fast_forward) { rollback_lock_file(&lock); ret = fast_forward_to(&commit->object.oid, &head_commit->object.oid, 0, opts); goto leave_merge; } + if (to_merge->next) { + /* Octopus merge */ + struct child_process cmd = CHILD_PROCESS_INIT; + + if (read_env_script(&cmd.env_array)) { + const char *gpg_opt = gpg_sign_opt_quoted(opts); + + ret = error(_(staged_changes_advice), gpg_opt, gpg_opt); + goto leave_merge; + } + + 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)); + if (opts->gpg_sign) + argv_array_push(&cmd.args, opts->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)); + + strbuf_release(&ref_name); + unlink(git_path_cherry_pick_head(the_repository)); + 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)) + 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(), 0); - write_message("no-ff", 5, git_path_merge_mode(), 0); + 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; @@ -3031,12 +3186,13 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len, * value (a negative one would indicate that the `merge` * command needs to be rescheduled). */ - ret = !!run_git_commit(git_path_merge_msg(), opts, + ret = !!run_git_commit(git_path_merge_msg(the_repository), opts, run_commit_flags); leave_merge: strbuf_release(&ref_name); rollback_lock_file(&lock); + free_commit_list(to_merge); return ret; } @@ -3214,10 +3370,27 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts) intend_to_amend(); return error_failed_squash(item->commit, opts, item->arg_len, item->arg); - } else if (res && is_rebase_i(opts) && item->commit) + } else if (res && is_rebase_i(opts) && item->commit) { + int to_amend = 0; + struct object_id oid; + + /* + * If we are rewording and have either + * fast-forwarded already, or are about to + * create a new root commit, we want to amend, + * otherwise we do not. + */ + if (item->command == TODO_REWORD && + !get_oid("HEAD", &oid) && + (oideq(&item->commit->object.oid, &oid) || + (opts->have_squash_onto && + oideq(&opts->squash_onto, &oid)))) + to_amend = 1; + return res | error_with_patch(item->commit, - item->arg, item->arg_len, opts, res, - item->command == TODO_REWORD); + item->arg, item->arg_len, opts, + res, to_amend); + } } else if (item->command == TODO_EXEC) { char *end_of_arg = (char *)(item->arg + item->arg_len); int saved = *end_of_arg; @@ -3398,8 +3571,8 @@ static int continue_single_pick(void) { const char *argv[] = { "commit", NULL }; - if (!file_exists(git_path_cherry_pick_head()) && - !file_exists(git_path_revert_head())) + if (!file_exists(git_path_cherry_pick_head(the_repository)) && + !file_exists(git_path_revert_head(the_repository))) return error(_("no cherry-pick or revert in progress")); return run_command_v_opt(argv, RUN_GIT_CMD); } @@ -3426,7 +3599,7 @@ 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 " @@ -3438,7 +3611,7 @@ 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) && + if (is_clean && oideq(&head, &to_amend) && opts->current_fixup_count > 0 && file_exists(rebase_path_stopped_sha())) { const char *p = opts->current_fixups.buf; @@ -3502,7 +3675,7 @@ static int commit_staged_changes(struct replay_opts *opts, } if (is_clean) { - const char *cherry_pick_head = git_path_cherry_pick_head(); + const char *cherry_pick_head = git_path_cherry_pick_head(the_repository); if (file_exists(cherry_pick_head) && unlink(cherry_pick_head)) return error(_("could not remove CHERRY_PICK_HEAD")); @@ -3552,8 +3725,8 @@ int sequencer_continue(struct replay_opts *opts) if (!is_rebase_i(opts)) { /* Verify that the conflict has been resolved */ - if (file_exists(git_path_cherry_pick_head()) || - file_exists(git_path_revert_head())) { + if (file_exists(git_path_cherry_pick_head(the_repository)) || + file_exists(git_path_revert_head(the_repository))) { res = continue_single_pick(); if (res) goto release_todo_list; @@ -3605,7 +3778,7 @@ int sequencer_pick_revisions(struct replay_opts *opts) continue; if (!get_oid(name, &oid)) { - if (!lookup_commit_reference_gently(&oid, 1)) { + if (!lookup_commit_reference_gently(the_repository, &oid, 1)) { enum object_type type = oid_object_info(the_repository, &oid, NULL); @@ -3631,8 +3804,10 @@ int sequencer_pick_revisions(struct replay_opts *opts) if (prepare_revision_walk(opts->revs)) return error(_("revision walk setup failed")); cmit = get_revision(opts->revs); - if (!cmit || get_revision(opts->revs)) - return error("BUG: expected exactly one commit from walk"); + if (!cmit) + return error(_("empty commit set passed")); + if (get_revision(opts->revs)) + BUG("unexpected extra commit from walk"); return single_pick(cmit, opts); } @@ -3657,7 +3832,7 @@ int sequencer_pick_revisions(struct replay_opts *opts) 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; @@ -3874,7 +4049,6 @@ static int make_script_with_merges(struct pretty_print_context *pp, */ while ((commit = get_revision(revs))) { struct commit_list *to_merge; - int is_octopus; const char *p1, *p2; struct object_id *oid; int is_empty; @@ -3906,11 +4080,6 @@ static int make_script_with_merges(struct pretty_print_context *pp, continue; } - is_octopus = to_merge && to_merge->next; - - if (is_octopus) - BUG("Octopus merges not yet supported"); - /* Create a label */ strbuf_reset(&label); if (skip_prefix(oneline.buf, "Merge ", &p1) && @@ -3932,13 +4101,17 @@ static int make_script_with_merges(struct pretty_print_context *pp, strbuf_addf(&buf, "%s -C %s", cmd_merge, oid_to_hex(&commit->object.oid)); - /* label the tip of merged branch */ - oid = &to_merge->item->object.oid; - strbuf_addch(&buf, ' '); + /* label the tips of merged branches */ + for (; to_merge; to_merge = to_merge->next) { + oid = &to_merge->item->object.oid; + strbuf_addch(&buf, ' '); + + if (!oidset_contains(&interesting, oid)) { + strbuf_addstr(&buf, label_oid(oid, NULL, + &state)); + continue; + } - if (!oidset_contains(&interesting, oid)) - strbuf_addstr(&buf, label_oid(oid, NULL, &state)); - else { tips_tail = &commit_list_insert(to_merge->item, tips_tail)->next; @@ -3991,7 +4164,7 @@ static int make_script_with_merges(struct pretty_print_context *pp, entry = oidmap_get(&state.commit2label, &commit->object.oid); if (entry) - fprintf(out, "\n# Branch %s\n", entry->string); + fprintf(out, "\n%c Branch %s\n", comment_line_char, entry->string); else fprintf(out, "\n"); @@ -4129,10 +4302,9 @@ int sequencer_add_exec_commands(const char *commands) { const char *todo_file = rebase_path_todo(); struct todo_list todo_list = TODO_LIST_INIT; - struct todo_item *item; struct strbuf *buf = &todo_list.buf; size_t offset = 0, commands_len = strlen(commands); - int i, first; + int i, insert; if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0) return error(_("could not read '%s'."), todo_file); @@ -4142,19 +4314,40 @@ int sequencer_add_exec_commands(const char *commands) return error(_("unusable todo list: '%s'"), todo_file); } - first = 1; - /* insert <commands> before every pick except the first one */ - for (item = todo_list.items, i = 0; i < todo_list.nr; i++, item++) { - if (item->command == TODO_PICK && !first) { - strbuf_insert(buf, item->offset_in_buf + offset, - commands, commands_len); + /* + * 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. + */ + 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; } - first = 0; + + if (command == TODO_PICK || command == TODO_MERGE) + insert = i + 1; } - /* append final <commands> */ - strbuf_add(buf, commands, commands_len); + /* 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); i = write_message(buf->buf, buf->len, todo_file, 0); todo_list_release(&todo_list); @@ -4238,6 +4431,7 @@ static enum check_level get_missing_commit_check_level(void) return CHECK_IGNORE; } +define_commit_slab(commit_seen, unsigned char); /* * Check if the user dropped some commits by mistake * Behaviour determined by rebase.missingCommitsCheck. @@ -4251,6 +4445,9 @@ int check_todo_list(void) 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) { @@ -4267,7 +4464,7 @@ int check_todo_list(void) for (i = 0; i < todo_list.nr; i++) { struct commit *commit = todo_list.items[i].commit; if (commit) - commit->util = (void *)1; + *commit_seen_at(&commit_seen, commit) = 1; } todo_list_release(&todo_list); @@ -4283,11 +4480,11 @@ int check_todo_list(void) 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->util) { + if (commit && !*commit_seen_at(&commit_seen, commit)) { strbuf_addf(&missing, " - %s %.*s\n", short_commit_name(commit), item->arg_len, item->arg); - commit->util = (void *)1; + *commit_seen_at(&commit_seen, commit) = 1; } } @@ -4313,6 +4510,7 @@ int check_todo_list(void) "The possible behaviours are: ignore, warn, error.\n\n")); leave_check: + clear_commit_seen(&commit_seen); strbuf_release(&todo_file); todo_list_release(&todo_list); @@ -4380,7 +4578,7 @@ 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, oid)) break; oid = &item->commit->object.oid; } @@ -4433,6 +4631,8 @@ static int subject2item_cmp(const void *fndata, return key ? strcmp(a->subject, key) : strcmp(a->subject, b->subject); } +define_commit_slab(commit_todo_item, struct todo_item *); + /* * Rearrange the todo list that has both "pick commit-id msg" and "pick * commit-id fixup!/squash! msg" in it so that the latter is put immediately @@ -4449,6 +4649,7 @@ int rearrange_squash(void) struct hashmap subject2item; int res = 0, rearranged = 0, *next, *tail, i; char **subjects; + struct commit_todo_item commit_todo; if (strbuf_read_file_or_whine(&todo_list.buf, todo_file) < 0) return -1; @@ -4457,6 +4658,7 @@ int rearrange_squash(void) return -1; } + init_commit_todo_item(&commit_todo); /* * The hashmap maps onelines to the respective todo list index. * @@ -4487,10 +4689,11 @@ 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.")); } - item->commit->util = item; + *commit_todo_item_at(&commit_todo, item->commit) = item; parse_commit(item->commit); commit_buffer = get_commit_buffer(item->commit, NULL); @@ -4517,9 +4720,9 @@ int rearrange_squash(void) else if (!strchr(p, ' ') && (commit2 = lookup_commit_reference_by_name(p)) && - commit2->util) + *commit_todo_item_at(&commit_todo, commit2)) /* found by commit name */ - i2 = (struct todo_item *)commit2->util + i2 = *commit_todo_item_at(&commit_todo, commit2) - todo_list.items; else { /* copy can be a prefix of the commit subject */ @@ -4596,5 +4799,6 @@ int rearrange_squash(void) hashmap_free(&subject2item, 1); todo_list_release(&todo_list); + clear_commit_todo_item(&commit_todo); return res; } |