From a0be62c100897573ef1575ec0d5e8b215e9dcafe Mon Sep 17 00:00:00 2001 From: Johan Herland Date: Mon, 12 Mar 2012 15:57:13 +0100 Subject: notes-merge: use opendir/readdir instead of using read_directory() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit notes_merge_commit() only needs to list all entries (non-recursively) under a directory, which can be easily accomplished with opendir/readdir and would be more lightweight than read_directory(). read_directory() is designed to list paths inside a working directory. Using it outside of its scope may lead to undesired effects. Apparently, one of the undesired effects of read_directory() is that it doesn't deal with being given absolute paths. This creates problems for notes_merge_commit() when git_path() returns an absolute path, which happens when the current working directory is in a subdirectory of the .git directory. Originally-by: Nguyễn Thái Ngọc Duy Updated-by: Johan Herland Signed-off-by: Johan Herland Signed-off-by: Junio C Hamano --- notes-merge.c | 50 ++++++++++++++++++++++++++++++-------------------- 1 file changed, 30 insertions(+), 20 deletions(-) (limited to 'notes-merge.c') diff --git a/notes-merge.c b/notes-merge.c index fb0832f97d..3a16af2817 100644 --- a/notes-merge.c +++ b/notes-merge.c @@ -687,51 +687,60 @@ int notes_merge_commit(struct notes_merge_options *o, { /* * Iterate through files in .git/NOTES_MERGE_WORKTREE and add all - * found notes to 'partial_tree'. Write the updates notes tree to + * found notes to 'partial_tree'. Write the updated notes tree to * the DB, and commit the resulting tree object while reusing the * commit message and parents from 'partial_commit'. * Finally store the new commit object SHA1 into 'result_sha1'. */ - struct dir_struct dir; - char *path = xstrdup(git_path(NOTES_MERGE_WORKTREE "/")); - int path_len = strlen(path), i; + DIR *dir; + struct dirent *e; + struct strbuf path = STRBUF_INIT; char *msg = strstr(partial_commit->buffer, "\n\n"); struct strbuf sb_msg = STRBUF_INIT; + int baselen; + strbuf_addstr(&path, git_path(NOTES_MERGE_WORKTREE)); if (o->verbosity >= 3) - printf("Committing notes in notes merge worktree at %.*s\n", - path_len - 1, path); + printf("Committing notes in notes merge worktree at %s\n", + path.buf); if (!msg || msg[2] == '\0') die("partial notes commit has empty message"); msg += 2; - memset(&dir, 0, sizeof(dir)); - read_directory(&dir, path, path_len, NULL); - for (i = 0; i < dir.nr; i++) { - struct dir_entry *ent = dir.entries[i]; + dir = opendir(path.buf); + if (!dir) + die_errno("could not open %s", path.buf); + + strbuf_addch(&path, '/'); + baselen = path.len; + while ((e = readdir(dir)) != NULL) { struct stat st; - const char *relpath = ent->name + path_len; unsigned char obj_sha1[20], blob_sha1[20]; - if (ent->len - path_len != 40 || get_sha1_hex(relpath, obj_sha1)) { + if (is_dot_or_dotdot(e->d_name)) + continue; + + if (strlen(e->d_name) != 40 || get_sha1_hex(e->d_name, obj_sha1)) { if (o->verbosity >= 3) - printf("Skipping non-SHA1 entry '%s'\n", - ent->name); + printf("Skipping non-SHA1 entry '%s%s'\n", + path.buf, e->d_name); continue; } + strbuf_addstr(&path, e->d_name); /* write file as blob, and add to partial_tree */ - if (stat(ent->name, &st)) - die_errno("Failed to stat '%s'", ent->name); - if (index_path(blob_sha1, ent->name, &st, HASH_WRITE_OBJECT)) - die("Failed to write blob object from '%s'", ent->name); + if (stat(path.buf, &st)) + die_errno("Failed to stat '%s'", path.buf); + if (index_path(blob_sha1, path.buf, &st, HASH_WRITE_OBJECT)) + die("Failed to write blob object from '%s'", path.buf); if (add_note(partial_tree, obj_sha1, blob_sha1, NULL)) die("Failed to add resolved note '%s' to notes tree", - ent->name); + path.buf); if (o->verbosity >= 4) printf("Added resolved note for object %s: %s\n", sha1_to_hex(obj_sha1), sha1_to_hex(blob_sha1)); + strbuf_setlen(&path, baselen); } strbuf_attach(&sb_msg, msg, strlen(msg), strlen(msg) + 1); @@ -740,7 +749,8 @@ int notes_merge_commit(struct notes_merge_options *o, if (o->verbosity >= 4) printf("Finalized notes merge commit: %s\n", sha1_to_hex(result_sha1)); - free(path); + strbuf_release(&path); + closedir(dir); return 0; } -- cgit v1.2.3 From dabba590aa0e94a8deb6f0e827144697895bcfe8 Mon Sep 17 00:00:00 2001 From: Johan Herland Date: Thu, 15 Mar 2012 15:58:56 +0100 Subject: notes-merge: Don't remove .git/NOTES_MERGE_WORKTREE; it may be the user's cwd When a manual notes merge is committed or aborted, we need to remove the temporary worktree at .git/NOTES_MERGE_WORKTREE. However, removing the entire directory is not good if the user ran the 'git notes merge --commit/--abort' from within that directory. On Windows, the directory removal would simply fail, while on POSIX systems, users would suddenly find themselves in an invalid current directory. Therefore, instead of deleting the entire directory, we delete everything _within_ the directory, and leave the (empty) directory in place. This would cause a subsequent notes merge to abort, complaining about a previous - unfinished - notes merge (due to the presence of .git/NOTES_MERGE_WORKTREE), so we also need to adjust this check to only trigger when .git/NOTES_MERGE_WORKTREE is non-empty. Finally, adjust the t3310 manual notes merge testcases to correctly handle the existence of an empty .git/NOTES_MERGE_WORKTREE directory. Inspired-by: Junio C Hamano Signed-off-by: Johan Herland Signed-off-by: Junio C Hamano --- notes-merge.c | 13 +++++++++---- t/t3310-notes-merge-manual-resolve.sh | 8 ++++---- 2 files changed, 13 insertions(+), 8 deletions(-) (limited to 'notes-merge.c') diff --git a/notes-merge.c b/notes-merge.c index 3a16af2817..74aa77ce4b 100644 --- a/notes-merge.c +++ b/notes-merge.c @@ -267,7 +267,8 @@ static void check_notes_merge_worktree(struct notes_merge_options *o) * Must establish NOTES_MERGE_WORKTREE. * Abort if NOTES_MERGE_WORKTREE already exists */ - if (file_exists(git_path(NOTES_MERGE_WORKTREE))) { + if (file_exists(git_path(NOTES_MERGE_WORKTREE)) && + !is_empty_dir(git_path(NOTES_MERGE_WORKTREE))) { if (advice_resolve_conflict) die("You have not concluded your previous " "notes merge (%s exists).\nPlease, use " @@ -756,14 +757,18 @@ int notes_merge_commit(struct notes_merge_options *o, int notes_merge_abort(struct notes_merge_options *o) { - /* Remove .git/NOTES_MERGE_WORKTREE directory and all files within */ + /* + * Remove all files within .git/NOTES_MERGE_WORKTREE. We do not remove + * the .git/NOTES_MERGE_WORKTREE directory itself, since it might be + * the current working directory of the user. + */ struct strbuf buf = STRBUF_INIT; int ret; strbuf_addstr(&buf, git_path(NOTES_MERGE_WORKTREE)); if (o->verbosity >= 3) - printf("Removing notes merge worktree at %s\n", buf.buf); - ret = remove_dir_recursively(&buf, 0); + printf("Removing notes merge worktree at %s/*\n", buf.buf); + ret = remove_dir_recursively(&buf, REMOVE_DIR_KEEP_TOPLEVEL); strbuf_release(&buf); return ret; } diff --git a/t/t3310-notes-merge-manual-resolve.sh b/t/t3310-notes-merge-manual-resolve.sh index d6d6ac608b..195bb97f85 100755 --- a/t/t3310-notes-merge-manual-resolve.sh +++ b/t/t3310-notes-merge-manual-resolve.sh @@ -324,7 +324,7 @@ y and z notes on 4th commit EOF git notes merge --commit && # No .git/NOTES_MERGE_* files left - test_must_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && + test_might_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && test_cmp /dev/null output && # Merge commit has pre-merge y and pre-merge z as parents test "$(git rev-parse refs/notes/m^1)" = "$(cat pre_merge_y)" && @@ -386,7 +386,7 @@ test_expect_success 'redo merge of z into m (== y) with default ("manual") resol test_expect_success 'abort notes merge' ' git notes merge --abort && # No .git/NOTES_MERGE_* files left - test_must_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && + test_might_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && test_cmp /dev/null output && # m has not moved (still == y) test "$(git rev-parse refs/notes/m)" = "$(cat pre_merge_y)" && @@ -453,7 +453,7 @@ EOF # Finalize merge git notes merge --commit && # No .git/NOTES_MERGE_* files left - test_must_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && + test_might_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && test_cmp /dev/null output && # Merge commit has pre-merge y and pre-merge z as parents test "$(git rev-parse refs/notes/m^1)" = "$(cat pre_merge_y)" && @@ -542,7 +542,7 @@ EOF test_expect_success 'resolve situation by aborting the notes merge' ' git notes merge --abort && # No .git/NOTES_MERGE_* files left - test_must_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && + test_might_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && test_cmp /dev/null output && # m has not moved (still == w) test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/w)" && -- cgit v1.2.3