diff options
Diffstat (limited to 'notes-merge.c')
-rw-r--r-- | notes-merge.c | 191 |
1 files changed, 96 insertions, 95 deletions
diff --git a/notes-merge.c b/notes-merge.c index 5998605acc..70e3fbeefb 100644 --- a/notes-merge.c +++ b/notes-merge.c @@ -22,21 +22,21 @@ void init_notes_merge_options(struct notes_merge_options *o) o->verbosity = NOTES_MERGE_VERBOSITY_DEFAULT; } -static int path_to_sha1(const char *path, unsigned char *sha1) +static int path_to_oid(const char *path, struct object_id *oid) { - char hex_sha1[40]; + char hex_oid[GIT_SHA1_HEXSZ]; int i = 0; - while (*path && i < 40) { + while (*path && i < GIT_SHA1_HEXSZ) { if (*path != '/') - hex_sha1[i++] = *path; + hex_oid[i++] = *path; path++; } - if (*path || i != 40) + if (*path || i != GIT_SHA1_HEXSZ) return -1; - return get_sha1_hex(hex_sha1, sha1); + return get_oid_hex(hex_oid, oid); } -static int verify_notes_filepair(struct diff_filepair *p, unsigned char *sha1) +static int verify_notes_filepair(struct diff_filepair *p, struct object_id *oid) { switch (p->status) { case DIFF_STATUS_MODIFIED: @@ -54,11 +54,11 @@ static int verify_notes_filepair(struct diff_filepair *p, unsigned char *sha1) return -1; } assert(!strcmp(p->one->path, p->two->path)); - return path_to_sha1(p->one->path, sha1); + return path_to_oid(p->one->path, oid); } static struct notes_merge_pair *find_notes_merge_pair_pos( - struct notes_merge_pair *list, int len, unsigned char *obj, + struct notes_merge_pair *list, int len, struct object_id *obj, int insert_new, int *occupied) { /* @@ -75,7 +75,7 @@ static struct notes_merge_pair *find_notes_merge_pair_pos( int i = last_index < len ? last_index : len - 1; int prev_cmp = 0, cmp = -1; while (i >= 0 && i < len) { - cmp = hashcmp(obj, list[i].obj.hash); + cmp = oidcmp(obj, &list[i].obj); if (!cmp) /* obj belongs @ i */ break; else if (cmp < 0 && prev_cmp <= 0) /* obj belongs < i */ @@ -114,8 +114,8 @@ static struct object_id uninitialized = { }; static struct notes_merge_pair *diff_tree_remote(struct notes_merge_options *o, - const unsigned char *base, - const unsigned char *remote, + const struct object_id *base, + const struct object_id *remote, int *num_changes) { struct diff_options opt; @@ -123,13 +123,13 @@ static struct notes_merge_pair *diff_tree_remote(struct notes_merge_options *o, int i, len = 0; trace_printf("\tdiff_tree_remote(base = %.7s, remote = %.7s)\n", - sha1_to_hex(base), sha1_to_hex(remote)); + oid_to_hex(base), oid_to_hex(remote)); diff_setup(&opt); DIFF_OPT_SET(&opt, RECURSIVE); opt.output_format = DIFF_FORMAT_NO_OUTPUT; diff_setup_done(&opt); - diff_tree_sha1(base, remote, "", &opt); + diff_tree_oid(base, remote, "", &opt); diffcore_std(&opt); changes = xcalloc(diff_queued_diff.nr, sizeof(struct notes_merge_pair)); @@ -138,19 +138,19 @@ static struct notes_merge_pair *diff_tree_remote(struct notes_merge_options *o, struct diff_filepair *p = diff_queued_diff.queue[i]; struct notes_merge_pair *mp; int occupied; - unsigned char obj[20]; + struct object_id obj; - if (verify_notes_filepair(p, obj)) { + if (verify_notes_filepair(p, &obj)) { trace_printf("\t\tCannot merge entry '%s' (%c): " "%.7s -> %.7s. Skipping!\n", p->one->path, p->status, oid_to_hex(&p->one->oid), oid_to_hex(&p->two->oid)); continue; } - mp = find_notes_merge_pair_pos(changes, len, obj, 1, &occupied); + mp = find_notes_merge_pair_pos(changes, len, &obj, 1, &occupied); if (occupied) { /* We've found an addition/deletion pair */ - assert(!hashcmp(mp->obj.hash, obj)); + assert(!oidcmp(&mp->obj, &obj)); if (is_null_oid(&p->one->oid)) { /* addition */ assert(is_null_oid(&mp->remote)); oidcpy(&mp->remote, &p->two->oid); @@ -160,7 +160,7 @@ static struct notes_merge_pair *diff_tree_remote(struct notes_merge_options *o, } else assert(!"Invalid existing change recorded"); } else { - hashcpy(mp->obj.hash, obj); + oidcpy(&mp->obj, &obj); oidcpy(&mp->base, &p->one->oid); oidcpy(&mp->local, &uninitialized); oidcpy(&mp->remote, &p->two->oid); @@ -179,45 +179,45 @@ static struct notes_merge_pair *diff_tree_remote(struct notes_merge_options *o, static void diff_tree_local(struct notes_merge_options *o, struct notes_merge_pair *changes, int len, - const unsigned char *base, - const unsigned char *local) + const struct object_id *base, + const struct object_id *local) { struct diff_options opt; int i; trace_printf("\tdiff_tree_local(len = %i, base = %.7s, local = %.7s)\n", - len, sha1_to_hex(base), sha1_to_hex(local)); + len, oid_to_hex(base), oid_to_hex(local)); diff_setup(&opt); DIFF_OPT_SET(&opt, RECURSIVE); opt.output_format = DIFF_FORMAT_NO_OUTPUT; diff_setup_done(&opt); - diff_tree_sha1(base, local, "", &opt); + diff_tree_oid(base, local, "", &opt); diffcore_std(&opt); for (i = 0; i < diff_queued_diff.nr; i++) { struct diff_filepair *p = diff_queued_diff.queue[i]; struct notes_merge_pair *mp; int match; - unsigned char obj[20]; + struct object_id obj; - if (verify_notes_filepair(p, obj)) { + if (verify_notes_filepair(p, &obj)) { trace_printf("\t\tCannot merge entry '%s' (%c): " "%.7s -> %.7s. Skipping!\n", p->one->path, p->status, oid_to_hex(&p->one->oid), oid_to_hex(&p->two->oid)); continue; } - mp = find_notes_merge_pair_pos(changes, len, obj, 0, &match); + mp = find_notes_merge_pair_pos(changes, len, &obj, 0, &match); if (!match) { trace_printf("\t\tIgnoring local-only change for %s: " - "%.7s -> %.7s\n", sha1_to_hex(obj), + "%.7s -> %.7s\n", oid_to_hex(&obj), oid_to_hex(&p->one->oid), oid_to_hex(&p->two->oid)); continue; } - assert(!hashcmp(mp->obj.hash, obj)); + assert(!oidcmp(&mp->obj, &obj)); if (is_null_oid(&p->two->oid)) { /* deletion */ /* * Either this is a true deletion (1), or it is part @@ -292,11 +292,11 @@ static void check_notes_merge_worktree(struct notes_merge_options *o) git_path(NOTES_MERGE_WORKTREE)); } -static void write_buf_to_worktree(const unsigned char *obj, +static void write_buf_to_worktree(const struct object_id *obj, const char *buf, unsigned long size) { int fd; - char *path = git_pathdup(NOTES_MERGE_WORKTREE "/%s", sha1_to_hex(obj)); + char *path = git_pathdup(NOTES_MERGE_WORKTREE "/%s", oid_to_hex(obj)); if (safe_create_leading_directories_const(path)) die_errno("unable to create directory for '%s'", path); @@ -320,19 +320,19 @@ static void write_buf_to_worktree(const unsigned char *obj, free(path); } -static void write_note_to_worktree(const unsigned char *obj, - const unsigned char *note) +static void write_note_to_worktree(const struct object_id *obj, + const struct object_id *note) { enum object_type type; unsigned long size; - void *buf = read_sha1_file(note, &type, &size); + void *buf = read_sha1_file(note->hash, &type, &size); if (!buf) die("cannot read note %s for object %s", - sha1_to_hex(note), sha1_to_hex(obj)); + oid_to_hex(note), oid_to_hex(obj)); if (type != OBJ_BLOB) die("blob expected in note %s for object %s", - sha1_to_hex(note), sha1_to_hex(obj)); + oid_to_hex(note), oid_to_hex(obj)); write_buf_to_worktree(obj, buf, size); free(buf); } @@ -358,7 +358,7 @@ static int ll_merge_in_worktree(struct notes_merge_options *o, if ((status < 0) || !result_buf.ptr) die("Failed to execute internal merge"); - write_buf_to_worktree(p->obj.hash, result_buf.ptr, result_buf.size); + write_buf_to_worktree(&p->obj, result_buf.ptr, result_buf.size); free(result_buf.ptr); return status; @@ -393,7 +393,7 @@ static int merge_one_change_manual(struct notes_merge_options *o, "deleted in %s and modified in %s. Version from %s " "left in tree.\n", oid_to_hex(&p->obj), lref, rref, rref); - write_note_to_worktree(p->obj.hash, p->remote.hash); + write_note_to_worktree(&p->obj, &p->remote); } else if (is_null_oid(&p->remote)) { /* D/F conflict, checkout p->local */ assert(!is_null_oid(&p->local)); @@ -402,7 +402,7 @@ static int merge_one_change_manual(struct notes_merge_options *o, "deleted in %s and modified in %s. Version from %s " "left in tree.\n", oid_to_hex(&p->obj), rref, lref, lref); - write_note_to_worktree(p->obj.hash, p->local.hash); + write_note_to_worktree(&p->obj, &p->local); } else { /* "regular" conflict, checkout result of ll_merge() */ const char *reason = "content"; @@ -444,14 +444,14 @@ static int merge_one_change(struct notes_merge_options *o, if (o->verbosity >= 2) printf("Using remote notes for %s\n", oid_to_hex(&p->obj)); - if (add_note(t, p->obj.hash, p->remote.hash, combine_notes_overwrite)) + if (add_note(t, &p->obj, &p->remote, combine_notes_overwrite)) die("BUG: combine_notes_overwrite failed"); return 0; case NOTES_MERGE_RESOLVE_UNION: if (o->verbosity >= 2) printf("Concatenating local and remote notes for %s\n", oid_to_hex(&p->obj)); - if (add_note(t, p->obj.hash, p->remote.hash, combine_notes_concatenate)) + if (add_note(t, &p->obj, &p->remote, combine_notes_concatenate)) die("failed to concatenate notes " "(combine_notes_concatenate)"); return 0; @@ -459,7 +459,7 @@ static int merge_one_change(struct notes_merge_options *o, if (o->verbosity >= 2) printf("Concatenating unique lines in local and remote " "notes for %s\n", oid_to_hex(&p->obj)); - if (add_note(t, p->obj.hash, p->remote.hash, combine_notes_cat_sort_uniq)) + if (add_note(t, &p->obj, &p->remote, combine_notes_cat_sort_uniq)) die("failed to concatenate notes " "(combine_notes_cat_sort_uniq)"); return 0; @@ -491,7 +491,7 @@ static int merge_changes(struct notes_merge_options *o, !oidcmp(&p->local, &p->base)) { /* no local change; adopt remote change */ trace_printf("\t\t\tno local change, adopted remote\n"); - if (add_note(t, p->obj.hash, p->remote.hash, + if (add_note(t, &p->obj, &p->remote, combine_notes_overwrite)) die("BUG: combine_notes_overwrite failed"); } else { @@ -505,16 +505,17 @@ static int merge_changes(struct notes_merge_options *o, } static int merge_from_diffs(struct notes_merge_options *o, - const unsigned char *base, - const unsigned char *local, - const unsigned char *remote, struct notes_tree *t) + const struct object_id *base, + const struct object_id *local, + const struct object_id *remote, + struct notes_tree *t) { struct notes_merge_pair *changes; int num_changes, conflicts; trace_printf("\tmerge_from_diffs(base = %.7s, local = %.7s, " - "remote = %.7s)\n", sha1_to_hex(base), sha1_to_hex(local), - sha1_to_hex(remote)); + "remote = %.7s)\n", oid_to_hex(base), oid_to_hex(local), + oid_to_hex(remote)); changes = diff_tree_remote(o, base, remote, &num_changes); diff_tree_local(o, changes, num_changes, base, local); @@ -533,62 +534,62 @@ static int merge_from_diffs(struct notes_merge_options *o, int notes_merge(struct notes_merge_options *o, struct notes_tree *local_tree, - unsigned char *result_sha1) + struct object_id *result_oid) { - unsigned char local_sha1[20], remote_sha1[20]; + struct object_id local_oid, remote_oid; struct commit *local, *remote; struct commit_list *bases = NULL; - const unsigned char *base_sha1, *base_tree_sha1; + const struct object_id *base_oid, *base_tree_oid; int result = 0; assert(o->local_ref && o->remote_ref); assert(!strcmp(o->local_ref, local_tree->ref)); - hashclr(result_sha1); + oidclr(result_oid); trace_printf("notes_merge(o->local_ref = %s, o->remote_ref = %s)\n", o->local_ref, o->remote_ref); /* Dereference o->local_ref into local_sha1 */ - if (read_ref_full(o->local_ref, 0, local_sha1, NULL)) + if (read_ref_full(o->local_ref, 0, local_oid.hash, NULL)) die("Failed to resolve local notes ref '%s'", o->local_ref); else if (!check_refname_format(o->local_ref, 0) && - is_null_sha1(local_sha1)) - local = NULL; /* local_sha1 == null_sha1 indicates unborn ref */ - else if (!(local = lookup_commit_reference(local_sha1))) + is_null_oid(&local_oid)) + local = NULL; /* local_oid == null_oid indicates unborn ref */ + else if (!(local = lookup_commit_reference(&local_oid))) die("Could not parse local commit %s (%s)", - sha1_to_hex(local_sha1), o->local_ref); - trace_printf("\tlocal commit: %.7s\n", sha1_to_hex(local_sha1)); + oid_to_hex(&local_oid), o->local_ref); + trace_printf("\tlocal commit: %.7s\n", oid_to_hex(&local_oid)); - /* Dereference o->remote_ref into remote_sha1 */ - if (get_sha1(o->remote_ref, remote_sha1)) { + /* Dereference o->remote_ref into remote_oid */ + if (get_oid(o->remote_ref, &remote_oid)) { /* - * Failed to get remote_sha1. If o->remote_ref looks like an + * Failed to get remote_oid. If o->remote_ref looks like an * unborn ref, perform the merge using an empty notes tree. */ if (!check_refname_format(o->remote_ref, 0)) { - hashclr(remote_sha1); + oidclr(&remote_oid); remote = NULL; } else { die("Failed to resolve remote notes ref '%s'", o->remote_ref); } - } else if (!(remote = lookup_commit_reference(remote_sha1))) { + } else if (!(remote = lookup_commit_reference(&remote_oid))) { die("Could not parse remote commit %s (%s)", - sha1_to_hex(remote_sha1), o->remote_ref); + oid_to_hex(&remote_oid), o->remote_ref); } - trace_printf("\tremote commit: %.7s\n", sha1_to_hex(remote_sha1)); + trace_printf("\tremote commit: %.7s\n", oid_to_hex(&remote_oid)); if (!local && !remote) die("Cannot merge empty notes ref (%s) into empty notes ref " "(%s)", o->remote_ref, o->local_ref); if (!local) { /* result == remote commit */ - hashcpy(result_sha1, remote_sha1); + oidcpy(result_oid, &remote_oid); goto found_result; } if (!remote) { /* result == local commit */ - hashcpy(result_sha1, local_sha1); + oidcpy(result_oid, &local_oid); goto found_result; } assert(local && remote); @@ -596,48 +597,48 @@ int notes_merge(struct notes_merge_options *o, /* Find merge bases */ bases = get_merge_bases(local, remote); if (!bases) { - base_sha1 = null_sha1; - base_tree_sha1 = EMPTY_TREE_SHA1_BIN; + base_oid = &null_oid; + base_tree_oid = &empty_tree_oid; if (o->verbosity >= 4) printf("No merge base found; doing history-less merge\n"); } else if (!bases->next) { - base_sha1 = bases->item->object.oid.hash; - base_tree_sha1 = bases->item->tree->object.oid.hash; + base_oid = &bases->item->object.oid; + base_tree_oid = &bases->item->tree->object.oid; if (o->verbosity >= 4) printf("One merge base found (%.7s)\n", - sha1_to_hex(base_sha1)); + oid_to_hex(base_oid)); } else { /* TODO: How to handle multiple merge-bases? */ - base_sha1 = bases->item->object.oid.hash; - base_tree_sha1 = bases->item->tree->object.oid.hash; + base_oid = &bases->item->object.oid; + base_tree_oid = &bases->item->tree->object.oid; if (o->verbosity >= 3) printf("Multiple merge bases found. Using the first " - "(%.7s)\n", sha1_to_hex(base_sha1)); + "(%.7s)\n", oid_to_hex(base_oid)); } if (o->verbosity >= 4) printf("Merging remote commit %.7s into local commit %.7s with " "merge-base %.7s\n", oid_to_hex(&remote->object.oid), oid_to_hex(&local->object.oid), - sha1_to_hex(base_sha1)); + oid_to_hex(base_oid)); - if (!hashcmp(remote->object.oid.hash, base_sha1)) { + if (!oidcmp(&remote->object.oid, base_oid)) { /* Already merged; result == local commit */ if (o->verbosity >= 2) printf("Already up-to-date!\n"); - hashcpy(result_sha1, local->object.oid.hash); + oidcpy(result_oid, &local->object.oid); goto found_result; } - if (!hashcmp(local->object.oid.hash, base_sha1)) { + if (!oidcmp(&local->object.oid, base_oid)) { /* Fast-forward; result == remote commit */ if (o->verbosity >= 2) printf("Fast-forward\n"); - hashcpy(result_sha1, remote->object.oid.hash); + oidcpy(result_oid, &remote->object.oid); goto found_result; } - result = merge_from_diffs(o, base_tree_sha1, local->tree->object.oid.hash, - remote->tree->object.oid.hash, local_tree); + result = merge_from_diffs(o, base_tree_oid, &local->tree->object.oid, + &remote->tree->object.oid, local_tree); if (result != 0) { /* non-trivial merge (with or without conflicts) */ /* Commit (partial) result */ @@ -646,28 +647,28 @@ int notes_merge(struct notes_merge_options *o, commit_list_insert(local, &parents); create_notes_commit(local_tree, parents, o->commit_msg.buf, o->commit_msg.len, - result_sha1); + result_oid->hash); } found_result: free_commit_list(bases); strbuf_release(&(o->commit_msg)); - trace_printf("notes_merge(): result = %i, result_sha1 = %.7s\n", - result, sha1_to_hex(result_sha1)); + trace_printf("notes_merge(): result = %i, result_oid = %.7s\n", + result, oid_to_hex(result_oid)); return result; } int notes_merge_commit(struct notes_merge_options *o, struct notes_tree *partial_tree, struct commit *partial_commit, - unsigned char *result_sha1) + struct object_id *result_oid) { /* * Iterate through files in .git/NOTES_MERGE_WORKTREE and add all * 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'. + * Finally store the new commit object OID into 'result_oid'. */ DIR *dir; struct dirent *e; @@ -676,7 +677,7 @@ int notes_merge_commit(struct notes_merge_options *o, const char *msg = strstr(buffer, "\n\n"); int baselen; - strbuf_addstr(&path, git_path(NOTES_MERGE_WORKTREE)); + git_path_buf(&path, NOTES_MERGE_WORKTREE); if (o->verbosity >= 3) printf("Committing notes in notes merge worktree at %s\n", path.buf); @@ -693,12 +694,12 @@ int notes_merge_commit(struct notes_merge_options *o, baselen = path.len; while ((e = readdir(dir)) != NULL) { struct stat st; - unsigned char obj_sha1[20], blob_sha1[20]; + struct object_id obj_oid, blob_oid; if (is_dot_or_dotdot(e->d_name)) continue; - if (strlen(e->d_name) != 40 || get_sha1_hex(e->d_name, obj_sha1)) { + if (get_oid_hex(e->d_name, &obj_oid)) { if (o->verbosity >= 3) printf("Skipping non-SHA1 entry '%s%s'\n", path.buf, e->d_name); @@ -709,23 +710,23 @@ int notes_merge_commit(struct notes_merge_options *o, /* write file as blob, and add to partial_tree */ if (stat(path.buf, &st)) die_errno("Failed to stat '%s'", path.buf); - if (index_path(blob_sha1, path.buf, &st, HASH_WRITE_OBJECT)) + if (index_path(blob_oid.hash, 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)) + if (add_note(partial_tree, &obj_oid, &blob_oid, NULL)) die("Failed to add resolved note '%s' to notes tree", 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)); + oid_to_hex(&obj_oid), oid_to_hex(&blob_oid)); strbuf_setlen(&path, baselen); } create_notes_commit(partial_tree, partial_commit->parents, - msg, strlen(msg), result_sha1); + msg, strlen(msg), result_oid->hash); unuse_commit_buffer(partial_commit, buffer); if (o->verbosity >= 4) printf("Finalized notes merge commit: %s\n", - sha1_to_hex(result_sha1)); + oid_to_hex(result_oid)); strbuf_release(&path); closedir(dir); return 0; @@ -741,7 +742,7 @@ int notes_merge_abort(struct notes_merge_options *o) struct strbuf buf = STRBUF_INIT; int ret; - strbuf_addstr(&buf, git_path(NOTES_MERGE_WORKTREE)); + git_path_buf(&buf, NOTES_MERGE_WORKTREE); if (o->verbosity >= 3) printf("Removing notes merge worktree at %s/*\n", buf.buf); ret = remove_dir_recursively(&buf, REMOVE_DIR_KEEP_TOPLEVEL); |