diff options
Diffstat (limited to 'builtin/stash.c')
-rw-r--r-- | builtin/stash.c | 353 |
1 files changed, 208 insertions, 145 deletions
diff --git a/builtin/stash.c b/builtin/stash.c index 0c52a3b849..9bc85f91cd 100644 --- a/builtin/stash.c +++ b/builtin/stash.c @@ -7,7 +7,7 @@ #include "cache-tree.h" #include "unpack-trees.h" #include "merge-recursive.h" -#include "argv-array.h" +#include "strvec.h" #include "run-command.h" #include "dir.h" #include "rerere.h" @@ -185,7 +185,7 @@ static int get_stash_info(struct stash_info *info, int argc, const char **argv) end_of_rev = strchrnul(revision, '@'); strbuf_add(&symbolic, revision, end_of_rev - revision); - ret = dwim_ref(symbolic.buf, symbolic.len, &dummy, &expanded_ref); + ret = dwim_ref(symbolic.buf, symbolic.len, &dummy, &expanded_ref, 0); strbuf_release(&symbolic); switch (ret) { case 0: /* Not found, but valid ref */ @@ -277,8 +277,8 @@ static int diff_tree_binary(struct strbuf *out, struct object_id *w_commit) * however it should be done together with apply_cached. */ cp.git_cmd = 1; - argv_array_pushl(&cp.args, "diff-tree", "--binary", NULL); - argv_array_pushf(&cp.args, "%s^2^..%s^2", w_commit_hex, w_commit_hex); + strvec_pushl(&cp.args, "diff-tree", "--binary", NULL); + strvec_pushf(&cp.args, "%s^2^..%s^2", w_commit_hex, w_commit_hex); return pipe_command(&cp, NULL, 0, out, 0, NULL, 0); } @@ -293,7 +293,7 @@ static int apply_cached(struct strbuf *out) * buffer. */ cp.git_cmd = 1; - argv_array_pushl(&cp.args, "apply", "--cached", NULL); + strvec_pushl(&cp.args, "apply", "--cached", NULL); return pipe_command(&cp, out->buf, out->len, NULL, 0, NULL, 0); } @@ -306,7 +306,7 @@ static int reset_head(void) * API for resetting. */ cp.git_cmd = 1; - argv_array_push(&cp.args, "reset"); + strvec_push(&cp.args, "reset"); return run_command(&cp); } @@ -325,35 +325,6 @@ static void add_diff_to_buf(struct diff_queue_struct *q, } } -static int get_newly_staged(struct strbuf *out, struct object_id *c_tree) -{ - struct child_process cp = CHILD_PROCESS_INIT; - const char *c_tree_hex = oid_to_hex(c_tree); - - /* - * diff-index is very similar to diff-tree above, and should be - * converted together with update_index. - */ - cp.git_cmd = 1; - argv_array_pushl(&cp.args, "diff-index", "--cached", "--name-only", - "--diff-filter=A", NULL); - argv_array_push(&cp.args, c_tree_hex); - return pipe_command(&cp, NULL, 0, out, 0, NULL, 0); -} - -static int update_index(struct strbuf *out) -{ - struct child_process cp = CHILD_PROCESS_INIT; - - /* - * Update-index is very complicated and may need to have a public - * function exposed in order to remove this forking. - */ - cp.git_cmd = 1; - argv_array_pushl(&cp.args, "update-index", "--add", "--stdin", NULL); - return pipe_command(&cp, out->buf, out->len, NULL, 0, NULL, 0); -} - static int restore_untracked(struct object_id *u_tree) { int res; @@ -365,10 +336,10 @@ static int restore_untracked(struct object_id *u_tree) * run_command to fork processes that will not interfere. */ cp.git_cmd = 1; - argv_array_push(&cp.args, "read-tree"); - argv_array_push(&cp.args, oid_to_hex(u_tree)); - argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", - stash_index_path.buf); + strvec_push(&cp.args, "read-tree"); + strvec_push(&cp.args, oid_to_hex(u_tree)); + strvec_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", + stash_index_path.buf); if (run_command(&cp)) { remove_path(stash_index_path.buf); return -1; @@ -376,15 +347,130 @@ static int restore_untracked(struct object_id *u_tree) child_process_init(&cp); cp.git_cmd = 1; - argv_array_pushl(&cp.args, "checkout-index", "--all", NULL); - argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", - stash_index_path.buf); + strvec_pushl(&cp.args, "checkout-index", "--all", NULL); + strvec_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", + stash_index_path.buf); res = run_command(&cp); remove_path(stash_index_path.buf); return res; } +static void unstage_changes_unless_new(struct object_id *orig_tree) +{ + /* + * When we enter this function, there has been a clean merge of + * relevant trees, and the merge logic always stages whatever merges + * cleanly. We want to unstage those changes, unless it corresponds + * to a file that didn't exist as of orig_tree. + * + * However, if any SKIP_WORKTREE path is modified relative to + * orig_tree, then we want to clear the SKIP_WORKTREE bit and write + * it to the worktree before unstaging. + */ + + struct checkout state = CHECKOUT_INIT; + struct diff_options diff_opts; + struct lock_file lock = LOCK_INIT; + int i; + + /* If any entries have skip_worktree set, we'll have to check 'em out */ + state.force = 1; + state.quiet = 1; + state.refresh_cache = 1; + state.istate = &the_index; + + /* + * Step 1: get a difference between orig_tree (which corresponding + * to the index before a merge was run) and the current index + * (reflecting the changes brought in by the merge). + */ + diff_setup(&diff_opts); + diff_opts.flags.recursive = 1; + diff_opts.detect_rename = 0; + diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT; + diff_setup_done(&diff_opts); + + do_diff_cache(orig_tree, &diff_opts); + diffcore_std(&diff_opts); + + /* Iterate over the paths that changed due to the merge... */ + for (i = 0; i < diff_queued_diff.nr; i++) { + struct diff_filepair *p; + struct cache_entry *ce; + int pos; + + /* Look up the path's position in the current index. */ + p = diff_queued_diff.queue[i]; + pos = index_name_pos(&the_index, p->two->path, + strlen(p->two->path)); + + /* + * Step 2: Place changes in the working tree + * + * Stash is about restoring changes *to the working tree*. + * So if the merge successfully got a new version of some + * path, but left it out of the working tree, then clear the + * SKIP_WORKTREE bit and write it to the working tree. + */ + if (pos >= 0 && ce_skip_worktree(active_cache[pos])) { + struct stat st; + + ce = active_cache[pos]; + if (!lstat(ce->name, &st)) { + /* Conflicting path present; relocate it */ + struct strbuf new_path = STRBUF_INIT; + int fd; + + strbuf_addf(&new_path, + "%s.stash.XXXXXX", ce->name); + fd = xmkstemp(new_path.buf); + close(fd); + printf(_("WARNING: Untracked file in way of " + "tracked file! Renaming\n " + " %s -> %s\n" + " to make room.\n"), + ce->name, new_path.buf); + if (rename(ce->name, new_path.buf)) + die("Failed to move %s to %s\n", + ce->name, new_path.buf); + strbuf_release(&new_path); + } + checkout_entry(ce, &state, NULL, NULL); + ce->ce_flags &= ~CE_SKIP_WORKTREE; + } + + /* + * Step 3: "unstage" changes, as long as they are still tracked + */ + if (p->one->oid_valid) { + /* + * Path existed in orig_tree; restore index entry + * from that tree in order to "unstage" the changes. + */ + int option = ADD_CACHE_OK_TO_REPLACE; + if (pos < 0) + option = ADD_CACHE_OK_TO_ADD; + + ce = make_cache_entry(&the_index, + p->one->mode, + &p->one->oid, + p->one->path, + 0, 0); + add_index_entry(&the_index, ce, option); + } + } + diff_flush(&diff_opts); + + /* + * Step 4: write the new index to disk + */ + repo_hold_locked_index(the_repository, &lock, LOCK_DIE_ON_ERROR); + if (write_locked_index(&the_index, &lock, + COMMIT_LOCK | SKIP_IF_UNCHANGED)) + die(_("Unable to write index.")); +} + static int do_apply_stash(const char *prefix, struct stash_info *info, int index, int quiet) { @@ -419,7 +505,7 @@ static int do_apply_stash(const char *prefix, struct stash_info *info, ret = apply_cached(&out); strbuf_release(&out); if (ret) - return error(_("conflicts in index." + return error(_("conflicts in index. " "Try without --index.")); discard_cache(); @@ -467,26 +553,7 @@ static int do_apply_stash(const char *prefix, struct stash_info *info, if (reset_tree(&index_tree, 0, 0)) return -1; } else { - struct strbuf out = STRBUF_INIT; - - if (get_newly_staged(&out, &c_tree)) { - strbuf_release(&out); - return -1; - } - - if (reset_tree(&c_tree, 0, 1)) { - strbuf_release(&out); - return -1; - } - - ret = update_index(&out); - strbuf_release(&out); - if (ret) - return -1; - - /* read back the result of update_index() back from the disk */ - discard_cache(); - read_cache(); + unstage_changes_unless_new(&c_tree); } if (!quiet) { @@ -499,11 +566,11 @@ static int do_apply_stash(const char *prefix, struct stash_info *info, */ cp.git_cmd = 1; cp.dir = prefix; - argv_array_pushf(&cp.env_array, GIT_WORK_TREE_ENVIRONMENT"=%s", - absolute_path(get_git_work_tree())); - argv_array_pushf(&cp.env_array, GIT_DIR_ENVIRONMENT"=%s", - absolute_path(get_git_dir())); - argv_array_push(&cp.args, "status"); + strvec_pushf(&cp.env_array, GIT_WORK_TREE_ENVIRONMENT"=%s", + absolute_path(get_git_work_tree())); + strvec_pushf(&cp.env_array, GIT_DIR_ENVIRONMENT"=%s", + absolute_path(get_git_dir())); + strvec_push(&cp.args, "status"); run_command(&cp); } @@ -534,11 +601,22 @@ static int apply_stash(int argc, const char **argv, const char *prefix) return ret; } +static int reject_reflog_ent(struct object_id *ooid, struct object_id *noid, + const char *email, timestamp_t timestamp, int tz, + const char *message, void *cb_data) +{ + return 1; +} + +static int reflog_is_empty(const char *refname) +{ + return !for_each_reflog_ent(refname, reject_reflog_ent, NULL); +} + static int do_drop_stash(struct stash_info *info, int quiet) { int ret; struct child_process cp_reflog = CHILD_PROCESS_INIT; - struct child_process cp = CHILD_PROCESS_INIT; /* * reflog does not provide a simple function for deleting refs. One will @@ -546,9 +624,9 @@ static int do_drop_stash(struct stash_info *info, int quiet) */ cp_reflog.git_cmd = 1; - argv_array_pushl(&cp_reflog.args, "reflog", "delete", "--updateref", - "--rewrite", NULL); - argv_array_push(&cp_reflog.args, info->revision.buf); + strvec_pushl(&cp_reflog.args, "reflog", "delete", "--updateref", + "--rewrite", NULL); + strvec_push(&cp_reflog.args, info->revision.buf); ret = run_command(&cp_reflog); if (!ret) { if (!quiet) @@ -559,19 +637,7 @@ static int do_drop_stash(struct stash_info *info, int quiet) info->revision.buf); } - /* - * This could easily be replaced by get_oid, but currently it will throw - * a fatal error when a reflog is empty, which we can not recover from. - */ - cp.git_cmd = 1; - /* Even though --quiet is specified, rev-parse still outputs the hash */ - cp.no_stdout = 1; - argv_array_pushl(&cp.args, "rev-parse", "--verify", "--quiet", NULL); - argv_array_pushf(&cp.args, "%s@{0}", ref_stash); - ret = run_command(&cp); - - /* do_clear_stash if we just dropped the last stash entry */ - if (ret) + if (reflog_is_empty(ref_stash)) do_clear_stash(); return 0; @@ -663,9 +729,9 @@ static int branch_stash(int argc, const char **argv, const char *prefix) return -1; cp.git_cmd = 1; - argv_array_pushl(&cp.args, "checkout", "-b", NULL); - argv_array_push(&cp.args, branch); - argv_array_push(&cp.args, oid_to_hex(&info.b_commit)); + strvec_pushl(&cp.args, "checkout", "-b", NULL); + strvec_push(&cp.args, branch); + strvec_push(&cp.args, oid_to_hex(&info.b_commit)); ret = run_command(&cp); if (!ret) ret = do_apply_stash(prefix, &info, 1, 0); @@ -692,11 +758,11 @@ static int list_stash(int argc, const char **argv, const char *prefix) return 0; cp.git_cmd = 1; - argv_array_pushl(&cp.args, "log", "--format=%gd: %gs", "-g", - "--first-parent", "-m", NULL); - argv_array_pushv(&cp.args, argv); - argv_array_push(&cp.args, ref_stash); - argv_array_push(&cp.args, "--"); + strvec_pushl(&cp.args, "log", "--format=%gd: %gs", "-g", + "--first-parent", "-m", NULL); + strvec_pushv(&cp.args, argv); + strvec_push(&cp.args, ref_stash); + strvec_push(&cp.args, "--"); return run_command(&cp); } @@ -727,8 +793,8 @@ static int show_stash(int argc, const char **argv, const char *prefix) int ret = 0; struct stash_info info; struct rev_info rev; - struct argv_array stash_args = ARGV_ARRAY_INIT; - struct argv_array revision_args = ARGV_ARRAY_INIT; + struct strvec stash_args = STRVEC_INIT; + struct strvec revision_args = STRVEC_INIT; struct option options[] = { OPT_END() }; @@ -737,16 +803,16 @@ static int show_stash(int argc, const char **argv, const char *prefix) git_config(git_diff_ui_config, NULL); init_revisions(&rev, prefix); - argv_array_push(&revision_args, argv[0]); + strvec_push(&revision_args, argv[0]); for (i = 1; i < argc; i++) { if (argv[i][0] != '-') - argv_array_push(&stash_args, argv[i]); + strvec_push(&stash_args, argv[i]); else - argv_array_push(&revision_args, argv[i]); + strvec_push(&revision_args, argv[i]); } - ret = get_stash_info(&info, stash_args.argc, stash_args.argv); - argv_array_clear(&stash_args); + ret = get_stash_info(&info, stash_args.nr, stash_args.v); + strvec_clear(&stash_args); if (ret) return -1; @@ -754,7 +820,7 @@ static int show_stash(int argc, const char **argv, const char *prefix) * The config settings are applied only if there are not passed * any options. */ - if (revision_args.argc == 1) { + if (revision_args.nr == 1) { if (show_stat) rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT; @@ -767,7 +833,7 @@ static int show_stash(int argc, const char **argv, const char *prefix) } } - argc = setup_revisions(revision_args.argc, revision_args.argv, &rev, NULL); + argc = setup_revisions(revision_args.nr, revision_args.v, &rev, NULL); if (argc > 1) { free_stash_info(&info); usage_with_options(git_stash_show_usage, options); @@ -842,12 +908,12 @@ static int store_stash(int argc, const char **argv, const char *prefix) return do_store_stash(&obj, stash_msg, quiet); } -static void add_pathspecs(struct argv_array *args, +static void add_pathspecs(struct strvec *args, const struct pathspec *ps) { int i; for (i = 0; i < ps->nr; i++) - argv_array_push(args, ps->items[i].original); + strvec_push(args, ps->items[i].original); } /* @@ -864,7 +930,7 @@ static int get_untracked_files(const struct pathspec *ps, int include_untracked, int found = 0; struct dir_struct dir; - memset(&dir, 0, sizeof(dir)); + dir_init(&dir); if (include_untracked != INCLUDE_ALL_FILES) setup_standard_excludes(&dir); @@ -875,12 +941,9 @@ static int get_untracked_files(const struct pathspec *ps, int include_untracked, strbuf_addstr(untracked_files, ent->name); /* NUL-terminate: will be fed to update-index -z */ strbuf_addch(untracked_files, '\0'); - free(ent); } - free(dir.entries); - free(dir.ignored); - clear_directory(&dir); + dir_clear(&dir); return found; } @@ -960,9 +1023,9 @@ static int save_untracked_files(struct stash_info *info, struct strbuf *msg, struct index_state istate = { NULL }; cp_upd_index.git_cmd = 1; - argv_array_pushl(&cp_upd_index.args, "update-index", "-z", "--add", - "--remove", "--stdin", NULL); - argv_array_pushf(&cp_upd_index.env_array, "GIT_INDEX_FILE=%s", + strvec_pushl(&cp_upd_index.args, "update-index", "-z", "--add", + "--remove", "--stdin", NULL); + strvec_pushf(&cp_upd_index.env_array, "GIT_INDEX_FILE=%s", stash_index_path.buf); strbuf_addf(&untracked_msg, "untracked files on %s\n", msg->buf); @@ -1003,9 +1066,9 @@ static int stash_patch(struct stash_info *info, const struct pathspec *ps, remove_path(stash_index_path.buf); cp_read_tree.git_cmd = 1; - argv_array_pushl(&cp_read_tree.args, "read-tree", "HEAD", NULL); - argv_array_pushf(&cp_read_tree.env_array, "GIT_INDEX_FILE=%s", - stash_index_path.buf); + strvec_pushl(&cp_read_tree.args, "read-tree", "HEAD", NULL); + strvec_pushf(&cp_read_tree.env_array, "GIT_INDEX_FILE=%s", + stash_index_path.buf); if (run_command(&cp_read_tree)) { ret = -1; goto done; @@ -1034,8 +1097,8 @@ static int stash_patch(struct stash_info *info, const struct pathspec *ps, } cp_diff_tree.git_cmd = 1; - argv_array_pushl(&cp_diff_tree.args, "diff-tree", "-p", "-U1", "HEAD", - oid_to_hex(&info->w_tree), "--", NULL); + strvec_pushl(&cp_diff_tree.args, "diff-tree", "-p", "-U1", "HEAD", + oid_to_hex(&info->w_tree), "--", NULL); if (pipe_command(&cp_diff_tree, NULL, 0, out_patch, 0, NULL, 0)) { ret = -1; goto done; @@ -1088,11 +1151,11 @@ static int stash_working_tree(struct stash_info *info, const struct pathspec *ps } cp_upd_index.git_cmd = 1; - argv_array_pushl(&cp_upd_index.args, "update-index", - "--ignore-skip-worktree-entries", - "-z", "--add", "--remove", "--stdin", NULL); - argv_array_pushf(&cp_upd_index.env_array, "GIT_INDEX_FILE=%s", - stash_index_path.buf); + strvec_pushl(&cp_upd_index.args, "update-index", + "--ignore-skip-worktree-entries", + "-z", "--add", "--remove", "--stdin", NULL); + strvec_pushf(&cp_upd_index.env_array, "GIT_INDEX_FILE=%s", + stash_index_path.buf); if (pipe_command(&cp_upd_index, diff_output.buf, diff_output.len, NULL, 0, NULL, 0)) { @@ -1342,10 +1405,10 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q struct child_process cp = CHILD_PROCESS_INIT; cp.git_cmd = 1; - argv_array_pushl(&cp.args, "clean", "--force", - "--quiet", "-d", NULL); + strvec_pushl(&cp.args, "clean", "--force", + "--quiet", "-d", NULL); if (include_untracked == INCLUDE_ALL_FILES) - argv_array_push(&cp.args, "-x"); + strvec_push(&cp.args, "-x"); if (run_command(&cp)) { ret = -1; goto done; @@ -1359,12 +1422,12 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q struct strbuf out = STRBUF_INIT; cp_add.git_cmd = 1; - argv_array_push(&cp_add.args, "add"); + strvec_push(&cp_add.args, "add"); if (!include_untracked) - argv_array_push(&cp_add.args, "-u"); + strvec_push(&cp_add.args, "-u"); if (include_untracked == INCLUDE_ALL_FILES) - argv_array_push(&cp_add.args, "--force"); - argv_array_push(&cp_add.args, "--"); + strvec_push(&cp_add.args, "--force"); + strvec_push(&cp_add.args, "--"); add_pathspecs(&cp_add.args, ps); if (run_command(&cp_add)) { ret = -1; @@ -1372,9 +1435,9 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q } cp_diff.git_cmd = 1; - argv_array_pushl(&cp_diff.args, "diff-index", "-p", - "--cached", "--binary", "HEAD", "--", - NULL); + strvec_pushl(&cp_diff.args, "diff-index", "-p", + "--cached", "--binary", "HEAD", "--", + NULL); add_pathspecs(&cp_diff.args, ps); if (pipe_command(&cp_diff, NULL, 0, &out, 0, NULL, 0)) { ret = -1; @@ -1382,8 +1445,8 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q } cp_apply.git_cmd = 1; - argv_array_pushl(&cp_apply.args, "apply", "--index", - "-R", NULL); + strvec_pushl(&cp_apply.args, "apply", "--index", + "-R", NULL); if (pipe_command(&cp_apply, out.buf, out.len, NULL, 0, NULL, 0)) { ret = -1; @@ -1392,8 +1455,8 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q } else { struct child_process cp = CHILD_PROCESS_INIT; cp.git_cmd = 1; - argv_array_pushl(&cp.args, "reset", "--hard", "-q", - "--no-recurse-submodules", NULL); + strvec_pushl(&cp.args, "reset", "--hard", "-q", + "--no-recurse-submodules", NULL); if (run_command(&cp)) { ret = -1; goto done; @@ -1404,10 +1467,10 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q struct child_process cp = CHILD_PROCESS_INIT; cp.git_cmd = 1; - argv_array_pushl(&cp.args, "checkout", "--no-overlay", - oid_to_hex(&info.i_tree), "--", NULL); + strvec_pushl(&cp.args, "checkout", "--no-overlay", + oid_to_hex(&info.i_tree), "--", NULL); if (!ps->nr) - argv_array_push(&cp.args, ":/"); + strvec_push(&cp.args, ":/"); else add_pathspecs(&cp.args, ps); if (run_command(&cp)) { @@ -1420,7 +1483,7 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q struct child_process cp = CHILD_PROCESS_INIT; cp.git_cmd = 1; - argv_array_pushl(&cp.args, "apply", "-R", NULL); + strvec_pushl(&cp.args, "apply", "-R", NULL); if (pipe_command(&cp, patch.buf, patch.len, NULL, 0, NULL, 0)) { if (!quiet) @@ -1434,7 +1497,7 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q struct child_process cp = CHILD_PROCESS_INIT; cp.git_cmd = 1; - argv_array_pushl(&cp.args, "reset", "-q", "--", NULL); + strvec_pushl(&cp.args, "reset", "-q", "--", NULL); add_pathspecs(&cp.args, ps); if (run_command(&cp)) { ret = -1; @@ -1560,7 +1623,7 @@ int cmd_stash(int argc, const char **argv, const char *prefix) { pid_t pid = getpid(); const char *index_file; - struct argv_array args = ARGV_ARRAY_INIT; + struct strvec args = STRVEC_INIT; struct option options[] = { OPT_END() @@ -1609,7 +1672,7 @@ int cmd_stash(int argc, const char **argv, const char *prefix) git_stash_usage, options); /* Assume 'stash push' */ - argv_array_push(&args, "push"); - argv_array_pushv(&args, argv); - return !!push_stash(args.argc, args.argv, prefix, 1); + strvec_push(&args, "push"); + strvec_pushv(&args, argv); + return !!push_stash(args.nr, args.v, prefix, 1); } |