From: Jonathan Nieder Date: Fri, 18 Nov 2011 01:27:46 +0000 (-0600) Subject: notes merge: eliminate OUTPUT macro X-Git-Tag: v1.7.7.4~3^2 X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=5f9f8d15f176a02cc66531cf5b5f749bec068961;p=git.git notes merge: eliminate OUTPUT macro The macro is variadic, which breaks support for pre-C99 compilers, and it hides an "if", which can make code hard to understand on first reading if some arguments have side-effects. The OUTPUT macro seems to have been inspired by the "output" function from merge-recursive. But that function in merge-recursive exists to indent output based on the level of recursion and there is no similar justification for such a function in "notes merge". Noticed with 'make CC="gcc -std=c89 -pedantic"': notes-merge.c:24:22: warning: anonymous variadic macros were introduced in C99 [-Wvariadic-macros] Encouraged-by: Nguyễn Thái Ngọc Duy Signed-off-by: Jonathan Nieder Acked-by: Johan Herland Signed-off-by: Junio C Hamano --- diff --git a/notes-merge.c b/notes-merge.c index 1467ad317..ec02da132 100644 --- a/notes-merge.c +++ b/notes-merge.c @@ -21,14 +21,6 @@ void init_notes_merge_options(struct notes_merge_options *o) o->verbosity = NOTES_MERGE_VERBOSITY_DEFAULT; } -#define OUTPUT(o, v, ...) \ - do { \ - if ((o)->verbosity >= (v)) { \ - printf(__VA_ARGS__); \ - puts(""); \ - } \ - } while (0) - static int path_to_sha1(const char *path, unsigned char *sha1) { char hex_sha1[40]; @@ -392,21 +384,26 @@ static int merge_one_change_manual(struct notes_merge_options *o, strbuf_addf(&(o->commit_msg), "\t%s\n", sha1_to_hex(p->obj)); - OUTPUT(o, 2, "Auto-merging notes for %s", sha1_to_hex(p->obj)); + if (o->verbosity >= 2) + printf("Auto-merging notes for %s\n", sha1_to_hex(p->obj)); check_notes_merge_worktree(o); if (is_null_sha1(p->local)) { /* D/F conflict, checkout p->remote */ assert(!is_null_sha1(p->remote)); - OUTPUT(o, 1, "CONFLICT (delete/modify): Notes for object %s " - "deleted in %s and modified in %s. Version from %s " - "left in tree.", sha1_to_hex(p->obj), lref, rref, rref); + if (o->verbosity >= 1) + printf("CONFLICT (delete/modify): Notes for object %s " + "deleted in %s and modified in %s. Version from %s " + "left in tree.\n", + sha1_to_hex(p->obj), lref, rref, rref); write_note_to_worktree(p->obj, p->remote); } else if (is_null_sha1(p->remote)) { /* D/F conflict, checkout p->local */ assert(!is_null_sha1(p->local)); - OUTPUT(o, 1, "CONFLICT (delete/modify): Notes for object %s " - "deleted in %s and modified in %s. Version from %s " - "left in tree.", sha1_to_hex(p->obj), rref, lref, lref); + if (o->verbosity >= 1) + printf("CONFLICT (delete/modify): Notes for object %s " + "deleted in %s and modified in %s. Version from %s " + "left in tree.\n", + sha1_to_hex(p->obj), rref, lref, lref); write_note_to_worktree(p->obj, p->local); } else { /* "regular" conflict, checkout result of ll_merge() */ @@ -415,8 +412,9 @@ static int merge_one_change_manual(struct notes_merge_options *o, reason = "add/add"; assert(!is_null_sha1(p->local)); assert(!is_null_sha1(p->remote)); - OUTPUT(o, 1, "CONFLICT (%s): Merge conflict in notes for " - "object %s", reason, sha1_to_hex(p->obj)); + if (o->verbosity >= 1) + printf("CONFLICT (%s): Merge conflict in notes for " + "object %s\n", reason, sha1_to_hex(p->obj)); ll_merge_in_worktree(o, p); } @@ -438,24 +436,30 @@ static int merge_one_change(struct notes_merge_options *o, case NOTES_MERGE_RESOLVE_MANUAL: return merge_one_change_manual(o, p, t); case NOTES_MERGE_RESOLVE_OURS: - OUTPUT(o, 2, "Using local notes for %s", sha1_to_hex(p->obj)); + if (o->verbosity >= 2) + printf("Using local notes for %s\n", + sha1_to_hex(p->obj)); /* nothing to do */ return 0; case NOTES_MERGE_RESOLVE_THEIRS: - OUTPUT(o, 2, "Using remote notes for %s", sha1_to_hex(p->obj)); + if (o->verbosity >= 2) + printf("Using remote notes for %s\n", + sha1_to_hex(p->obj)); if (add_note(t, p->obj, p->remote, combine_notes_overwrite)) die("BUG: combine_notes_overwrite failed"); return 0; case NOTES_MERGE_RESOLVE_UNION: - OUTPUT(o, 2, "Concatenating local and remote notes for %s", - sha1_to_hex(p->obj)); + if (o->verbosity >= 2) + printf("Concatenating local and remote notes for %s\n", + sha1_to_hex(p->obj)); if (add_note(t, p->obj, p->remote, combine_notes_concatenate)) die("failed to concatenate notes " "(combine_notes_concatenate)"); return 0; case NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ: - OUTPUT(o, 2, "Concatenating unique lines in local and remote " - "notes for %s", sha1_to_hex(p->obj)); + if (o->verbosity >= 2) + printf("Concatenating unique lines in local and remote " + "notes for %s\n", sha1_to_hex(p->obj)); if (add_note(t, p->obj, p->remote, combine_notes_cat_sort_uniq)) die("failed to concatenate notes " "(combine_notes_cat_sort_uniq)"); @@ -518,8 +522,9 @@ static int merge_from_diffs(struct notes_merge_options *o, conflicts = merge_changes(o, changes, &num_changes, t); free(changes); - OUTPUT(o, 4, "Merge result: %i unmerged notes and a %s notes tree", - conflicts, t->dirty ? "dirty" : "clean"); + if (o->verbosity >= 4) + printf("Merge result: %i unmerged notes and a %s notes tree\n", + conflicts, t->dirty ? "dirty" : "clean"); return conflicts ? -1 : 1; } @@ -616,33 +621,40 @@ int notes_merge(struct notes_merge_options *o, if (!bases) { base_sha1 = null_sha1; base_tree_sha1 = EMPTY_TREE_SHA1_BIN; - OUTPUT(o, 4, "No merge base found; doing history-less merge"); + if (o->verbosity >= 4) + printf("No merge base found; doing history-less merge\n"); } else if (!bases->next) { base_sha1 = bases->item->object.sha1; base_tree_sha1 = bases->item->tree->object.sha1; - OUTPUT(o, 4, "One merge base found (%.7s)", - sha1_to_hex(base_sha1)); + if (o->verbosity >= 4) + printf("One merge base found (%.7s)\n", + sha1_to_hex(base_sha1)); } else { /* TODO: How to handle multiple merge-bases? */ base_sha1 = bases->item->object.sha1; base_tree_sha1 = bases->item->tree->object.sha1; - OUTPUT(o, 3, "Multiple merge bases found. Using the first " - "(%.7s)", sha1_to_hex(base_sha1)); + if (o->verbosity >= 3) + printf("Multiple merge bases found. Using the first " + "(%.7s)\n", sha1_to_hex(base_sha1)); } - OUTPUT(o, 4, "Merging remote commit %.7s into local commit %.7s with " - "merge-base %.7s", sha1_to_hex(remote->object.sha1), - sha1_to_hex(local->object.sha1), sha1_to_hex(base_sha1)); + if (o->verbosity >= 4) + printf("Merging remote commit %.7s into local commit %.7s with " + "merge-base %.7s\n", sha1_to_hex(remote->object.sha1), + sha1_to_hex(local->object.sha1), + sha1_to_hex(base_sha1)); if (!hashcmp(remote->object.sha1, base_sha1)) { /* Already merged; result == local commit */ - OUTPUT(o, 2, "Already up-to-date!"); + if (o->verbosity >= 2) + printf("Already up-to-date!\n"); hashcpy(result_sha1, local->object.sha1); goto found_result; } if (!hashcmp(local->object.sha1, base_sha1)) { /* Fast-forward; result == remote commit */ - OUTPUT(o, 2, "Fast-forward"); + if (o->verbosity >= 2) + printf("Fast-forward\n"); hashcpy(result_sha1, remote->object.sha1); goto found_result; } @@ -684,8 +696,9 @@ int notes_merge_commit(struct notes_merge_options *o, int path_len = strlen(path), i; const char *msg = strstr(partial_commit->buffer, "\n\n"); - OUTPUT(o, 3, "Committing notes in notes merge worktree at %.*s", - path_len - 1, path); + if (o->verbosity >= 3) + printf("Committing notes in notes merge worktree at %.*s\n", + path_len - 1, path); if (!msg || msg[2] == '\0') die("partial notes commit has empty message"); @@ -700,7 +713,9 @@ int notes_merge_commit(struct notes_merge_options *o, unsigned char obj_sha1[20], blob_sha1[20]; if (ent->len - path_len != 40 || get_sha1_hex(relpath, obj_sha1)) { - OUTPUT(o, 3, "Skipping non-SHA1 entry '%s'", ent->name); + if (o->verbosity >= 3) + printf("Skipping non-SHA1 entry '%s'\n", + ent->name); continue; } @@ -712,14 +727,16 @@ int notes_merge_commit(struct notes_merge_options *o, if (add_note(partial_tree, obj_sha1, blob_sha1, NULL)) die("Failed to add resolved note '%s' to notes tree", ent->name); - OUTPUT(o, 4, "Added resolved note for object %s: %s", - sha1_to_hex(obj_sha1), sha1_to_hex(blob_sha1)); + if (o->verbosity >= 4) + printf("Added resolved note for object %s: %s\n", + sha1_to_hex(obj_sha1), sha1_to_hex(blob_sha1)); } create_notes_commit(partial_tree, partial_commit->parents, msg, result_sha1); - OUTPUT(o, 4, "Finalized notes merge commit: %s", - sha1_to_hex(result_sha1)); + if (o->verbosity >= 4) + printf("Finalized notes merge commit: %s\n", + sha1_to_hex(result_sha1)); return 0; } @@ -730,7 +747,8 @@ int notes_merge_abort(struct notes_merge_options *o) int ret; strbuf_addstr(&buf, git_path(NOTES_MERGE_WORKTREE)); - OUTPUT(o, 3, "Removing notes merge worktree at %s", buf.buf); + if (o->verbosity >= 3) + printf("Removing notes merge worktree at %s\n", buf.buf); ret = remove_dir_recursively(&buf, 0); strbuf_release(&buf); return ret;