diff options
Diffstat (limited to 'builtin/notes.c')
| -rw-r--r-- | builtin/notes.c | 277 |
1 files changed, 238 insertions, 39 deletions
diff --git a/builtin/notes.c b/builtin/notes.c index 6d07aac80c..4d5556e2cb 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -17,6 +17,7 @@ #include "run-command.h" #include "parse-options.h" #include "string-list.h" +#include "notes-merge.h" static const char * const git_notes_usage[] = { "git notes [--ref <notes_ref>] [list [<object>]]", @@ -25,8 +26,12 @@ static const char * const git_notes_usage[] = { "git notes [--ref <notes_ref>] append [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]", "git notes [--ref <notes_ref>] edit [<object>]", "git notes [--ref <notes_ref>] show [<object>]", + "git notes [--ref <notes_ref>] merge [-v | -q] [-s <strategy> ] <notes_ref>", + "git notes merge --commit [-v | -q]", + "git notes merge --abort [-v | -q]", "git notes [--ref <notes_ref>] remove [<object>]", "git notes [--ref <notes_ref>] prune [-n | -v]", + "git notes [--ref <notes_ref>] get-ref", NULL }; @@ -61,6 +66,13 @@ static const char * const git_notes_show_usage[] = { NULL }; +static const char * const git_notes_merge_usage[] = { + "git notes merge [<options>] <notes_ref>", + "git notes merge --commit [<options>]", + "git notes merge --abort [<options>]", + NULL +}; + static const char * const git_notes_remove_usage[] = { "git notes remove [<object>]", NULL @@ -71,6 +83,11 @@ static const char * const git_notes_prune_usage[] = { NULL }; +static const char * const git_notes_get_ref_usage[] = { + "git notes get-ref", + NULL +}; + static const char note_template[] = "\n" "#\n" @@ -83,6 +100,16 @@ struct msg_arg { struct strbuf buf; }; +static void expand_notes_ref(struct strbuf *sb) +{ + if (!prefixcmp(sb->buf, "refs/notes/")) + return; /* we're happy */ + else if (!prefixcmp(sb->buf, "notes/")) + strbuf_insert(sb, 0, "refs/", 5); + else + strbuf_insert(sb, 0, "refs/notes/", 11); +} + static int list_each_note(const unsigned char *object_sha1, const unsigned char *note_sha1, char *note_path, void *cb_data) @@ -271,18 +298,17 @@ static int parse_reedit_arg(const struct option *opt, const char *arg, int unset return parse_reuse_arg(opt, arg, unset); } -int commit_notes(struct notes_tree *t, const char *msg) +void commit_notes(struct notes_tree *t, const char *msg) { - struct commit_list *parent; - unsigned char tree_sha1[20], prev_commit[20], new_commit[20]; struct strbuf buf = STRBUF_INIT; + unsigned char commit_sha1[20]; if (!t) t = &default_notes_tree; if (!t->initialized || !t->ref || !*t->ref) die("Cannot commit uninitialized/unreferenced notes tree"); if (!t->dirty) - return 0; /* don't have to commit an unchanged tree */ + return; /* don't have to commit an unchanged tree */ /* Prepare commit message and reflog message */ strbuf_addstr(&buf, "notes: "); /* commit message starts at index 7 */ @@ -290,27 +316,10 @@ int commit_notes(struct notes_tree *t, const char *msg) if (buf.buf[buf.len - 1] != '\n') strbuf_addch(&buf, '\n'); /* Make sure msg ends with newline */ - /* Convert notes tree to tree object */ - if (write_notes_tree(t, tree_sha1)) - die("Failed to write current notes tree to database"); - - /* Create new commit for the tree object */ - if (!read_ref(t->ref, prev_commit)) { /* retrieve parent commit */ - parent = xmalloc(sizeof(*parent)); - parent->item = lookup_commit(prev_commit); - parent->next = NULL; - } else { - hashclr(prev_commit); - parent = NULL; - } - if (commit_tree(buf.buf + 7, tree_sha1, parent, new_commit, NULL)) - die("Failed to commit notes tree to database"); - - /* Update notes ref with new commit */ - update_ref(buf.buf, t->ref, new_commit, prev_commit, 0, DIE_ON_ERR); + create_notes_commit(t, NULL, buf.buf + 7, commit_sha1); + update_ref(buf.buf, t->ref, commit_sha1, NULL, 0, DIE_ON_ERR); strbuf_release(&buf); - return 0; } combine_notes_fn parse_combine_notes_fn(const char *v) @@ -321,6 +330,8 @@ combine_notes_fn parse_combine_notes_fn(const char *v) return combine_notes_ignore; else if (!strcasecmp(v, "concatenate")) return combine_notes_concatenate; + else if (!strcasecmp(v, "cat_sort_uniq")) + return combine_notes_cat_sort_uniq; else return NULL; } @@ -538,7 +549,7 @@ static int add(int argc, const char **argv, const char *prefix) { OPTION_CALLBACK, 'C', "reuse-message", &msg, "OBJECT", "reuse specified note object", PARSE_OPT_NONEG, parse_reuse_arg}, - OPT_BOOLEAN('f', "force", &force, "replace existing notes"), + OPT__FORCE(&force, "replace existing notes"), OPT_END() }; @@ -573,8 +584,8 @@ static int add(int argc, const char **argv, const char *prefix) if (is_null_sha1(new_note)) remove_note(t, object); - else - add_note(t, object, new_note, combine_notes_overwrite); + else if (add_note(t, object, new_note, combine_notes_overwrite)) + die("BUG: combine_notes_overwrite failed"); snprintf(logmsg, sizeof(logmsg), "Notes %s by 'git notes %s'", is_null_sha1(new_note) ? "removed" : "added", "add"); @@ -594,7 +605,7 @@ static int copy(int argc, const char **argv, const char *prefix) struct notes_tree *t; const char *rewrite_cmd = NULL; struct option options[] = { - OPT_BOOLEAN('f', "force", &force, "replace existing notes"), + OPT__FORCE(&force, "replace existing notes"), OPT_BOOLEAN(0, "stdin", &from_stdin, "read objects from stdin"), OPT_STRING(0, "for-rewrite", &rewrite_cmd, "command", "load rewriting config for <command> (implies " @@ -653,7 +664,8 @@ static int copy(int argc, const char **argv, const char *prefix) goto out; } - add_note(t, object, from_note, combine_notes_overwrite); + if (add_note(t, object, from_note, combine_notes_overwrite)) + die("BUG: combine_notes_overwrite failed"); commit_notes(t, "Notes added by 'git notes copy'"); out: free_notes(t); @@ -712,8 +724,8 @@ static int append_edit(int argc, const char **argv, const char *prefix) if (is_null_sha1(new_note)) remove_note(t, object); - else - add_note(t, object, new_note, combine_notes_overwrite); + else if (add_note(t, object, new_note, combine_notes_overwrite)) + die("BUG: combine_notes_overwrite failed"); snprintf(logmsg, sizeof(logmsg), "Notes %s by 'git notes %s'", is_null_sha1(new_note) ? "removed" : "added", argv[0]); @@ -761,6 +773,180 @@ static int show(int argc, const char **argv, const char *prefix) return retval; } +static int merge_abort(struct notes_merge_options *o) +{ + int ret = 0; + + /* + * Remove .git/NOTES_MERGE_PARTIAL and .git/NOTES_MERGE_REF, and call + * notes_merge_abort() to remove .git/NOTES_MERGE_WORKTREE. + */ + + if (delete_ref("NOTES_MERGE_PARTIAL", NULL, 0)) + ret += error("Failed to delete ref NOTES_MERGE_PARTIAL"); + if (delete_ref("NOTES_MERGE_REF", NULL, REF_NODEREF)) + ret += error("Failed to delete ref NOTES_MERGE_REF"); + if (notes_merge_abort(o)) + ret += error("Failed to remove 'git notes merge' worktree"); + return ret; +} + +static int merge_commit(struct notes_merge_options *o) +{ + struct strbuf msg = STRBUF_INIT; + unsigned char sha1[20], parent_sha1[20]; + struct notes_tree *t; + struct commit *partial; + struct pretty_print_context pretty_ctx; + + /* + * Read partial merge result from .git/NOTES_MERGE_PARTIAL, + * and target notes ref from .git/NOTES_MERGE_REF. + */ + + if (get_sha1("NOTES_MERGE_PARTIAL", sha1)) + die("Failed to read ref NOTES_MERGE_PARTIAL"); + else if (!(partial = lookup_commit_reference(sha1))) + die("Could not find commit from NOTES_MERGE_PARTIAL."); + else if (parse_commit(partial)) + die("Could not parse commit from NOTES_MERGE_PARTIAL."); + + if (partial->parents) + hashcpy(parent_sha1, partial->parents->item->object.sha1); + else + hashclr(parent_sha1); + + t = xcalloc(1, sizeof(struct notes_tree)); + init_notes(t, "NOTES_MERGE_PARTIAL", combine_notes_overwrite, 0); + + o->local_ref = resolve_ref("NOTES_MERGE_REF", sha1, 0, 0); + if (!o->local_ref) + die("Failed to resolve NOTES_MERGE_REF"); + + if (notes_merge_commit(o, t, partial, sha1)) + die("Failed to finalize notes merge"); + + /* Reuse existing commit message in reflog message */ + memset(&pretty_ctx, 0, sizeof(pretty_ctx)); + format_commit_message(partial, "%s", &msg, &pretty_ctx); + strbuf_trim(&msg); + strbuf_insert(&msg, 0, "notes: ", 7); + update_ref(msg.buf, o->local_ref, sha1, + is_null_sha1(parent_sha1) ? NULL : parent_sha1, + 0, DIE_ON_ERR); + + free_notes(t); + strbuf_release(&msg); + return merge_abort(o); +} + +static int merge(int argc, const char **argv, const char *prefix) +{ + struct strbuf remote_ref = STRBUF_INIT, msg = STRBUF_INIT; + unsigned char result_sha1[20]; + struct notes_tree *t; + struct notes_merge_options o; + int do_merge = 0, do_commit = 0, do_abort = 0; + int verbosity = 0, result; + const char *strategy = NULL; + struct option options[] = { + OPT_GROUP("General options"), + OPT__VERBOSITY(&verbosity), + OPT_GROUP("Merge options"), + OPT_STRING('s', "strategy", &strategy, "strategy", + "resolve notes conflicts using the given strategy " + "(manual/ours/theirs/union/cat_sort_uniq)"), + OPT_GROUP("Committing unmerged notes"), + { OPTION_BOOLEAN, 0, "commit", &do_commit, NULL, + "finalize notes merge by committing unmerged notes", + PARSE_OPT_NOARG | PARSE_OPT_NONEG }, + OPT_GROUP("Aborting notes merge resolution"), + { OPTION_BOOLEAN, 0, "abort", &do_abort, NULL, + "abort notes merge", + PARSE_OPT_NOARG | PARSE_OPT_NONEG }, + OPT_END() + }; + + argc = parse_options(argc, argv, prefix, options, + git_notes_merge_usage, 0); + + if (strategy || do_commit + do_abort == 0) + do_merge = 1; + if (do_merge + do_commit + do_abort != 1) { + error("cannot mix --commit, --abort or -s/--strategy"); + usage_with_options(git_notes_merge_usage, options); + } + + if (do_merge && argc != 1) { + error("Must specify a notes ref to merge"); + usage_with_options(git_notes_merge_usage, options); + } else if (!do_merge && argc) { + error("too many parameters"); + usage_with_options(git_notes_merge_usage, options); + } + + init_notes_merge_options(&o); + o.verbosity = verbosity + NOTES_MERGE_VERBOSITY_DEFAULT; + + if (do_abort) + return merge_abort(&o); + if (do_commit) + return merge_commit(&o); + + o.local_ref = default_notes_ref(); + strbuf_addstr(&remote_ref, argv[0]); + expand_notes_ref(&remote_ref); + o.remote_ref = remote_ref.buf; + + if (strategy) { + if (!strcmp(strategy, "manual")) + o.strategy = NOTES_MERGE_RESOLVE_MANUAL; + else if (!strcmp(strategy, "ours")) + o.strategy = NOTES_MERGE_RESOLVE_OURS; + else if (!strcmp(strategy, "theirs")) + o.strategy = NOTES_MERGE_RESOLVE_THEIRS; + else if (!strcmp(strategy, "union")) + o.strategy = NOTES_MERGE_RESOLVE_UNION; + else if (!strcmp(strategy, "cat_sort_uniq")) + o.strategy = NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ; + else { + error("Unknown -s/--strategy: %s", strategy); + usage_with_options(git_notes_merge_usage, options); + } + } + + t = init_notes_check("merge"); + + strbuf_addf(&msg, "notes: Merged notes from %s into %s", + remote_ref.buf, default_notes_ref()); + strbuf_add(&(o.commit_msg), msg.buf + 7, msg.len - 7); /* skip "notes: " */ + + result = notes_merge(&o, t, result_sha1); + + if (result >= 0) /* Merge resulted (trivially) in result_sha1 */ + /* Update default notes ref with new commit */ + update_ref(msg.buf, default_notes_ref(), result_sha1, NULL, + 0, DIE_ON_ERR); + else { /* Merge has unresolved conflicts */ + /* Update .git/NOTES_MERGE_PARTIAL with partial merge result */ + update_ref(msg.buf, "NOTES_MERGE_PARTIAL", result_sha1, NULL, + 0, DIE_ON_ERR); + /* Store ref-to-be-updated into .git/NOTES_MERGE_REF */ + if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL)) + die("Failed to store link to current notes ref (%s)", + default_notes_ref()); + printf("Automatic notes merge failed. Fix conflicts in %s and " + "commit the result with 'git notes merge --commit', or " + "abort the merge with 'git notes merge --abort'.\n", + git_path(NOTES_MERGE_WORKTREE)); + } + + free_notes(t); + strbuf_release(&remote_ref); + strbuf_release(&msg); + return result < 0; /* return non-zero on conflicts */ +} + static int remove_cmd(int argc, const char **argv, const char *prefix) { struct option options[] = { @@ -804,9 +990,8 @@ static int prune(int argc, const char **argv, const char *prefix) struct notes_tree *t; int show_only = 0, verbose = 0; struct option options[] = { - OPT_BOOLEAN('n', "dry-run", &show_only, - "do not remove, show only"), - OPT_BOOLEAN('v', "verbose", &verbose, "report pruned notes"), + OPT__DRY_RUN(&show_only, "do not remove, show only"), + OPT__VERBOSE(&verbose, "report pruned notes"), OPT_END() }; @@ -828,6 +1013,21 @@ static int prune(int argc, const char **argv, const char *prefix) return 0; } +static int get_ref(int argc, const char **argv, const char *prefix) +{ + struct option options[] = { OPT_END() }; + argc = parse_options(argc, argv, prefix, options, + git_notes_get_ref_usage, 0); + + if (argc) { + error("too many parameters"); + usage_with_options(git_notes_get_ref_usage, options); + } + + puts(default_notes_ref()); + return 0; +} + int cmd_notes(int argc, const char **argv, const char *prefix) { int result; @@ -844,13 +1044,8 @@ int cmd_notes(int argc, const char **argv, const char *prefix) if (override_notes_ref) { struct strbuf sb = STRBUF_INIT; - if (!prefixcmp(override_notes_ref, "refs/notes/")) - /* we're happy */; - else if (!prefixcmp(override_notes_ref, "notes/")) - strbuf_addstr(&sb, "refs/"); - else - strbuf_addstr(&sb, "refs/notes/"); strbuf_addstr(&sb, override_notes_ref); + expand_notes_ref(&sb); setenv("GIT_NOTES_REF", sb.buf, 1); strbuf_release(&sb); } @@ -865,10 +1060,14 @@ int cmd_notes(int argc, const char **argv, const char *prefix) result = append_edit(argc, argv, prefix); else if (!strcmp(argv[0], "show")) result = show(argc, argv, prefix); + else if (!strcmp(argv[0], "merge")) + result = merge(argc, argv, prefix); else if (!strcmp(argv[0], "remove")) result = remove_cmd(argc, argv, prefix); else if (!strcmp(argv[0], "prune")) result = prune(argc, argv, prefix); + else if (!strcmp(argv[0], "get-ref")) + result = get_ref(argc, argv, prefix); else { result = error("Unknown subcommand: %s", argv[0]); usage_with_options(git_notes_usage, options); |