From 2e27bd7731d47b374c1c14b53af07b3bfa39fcac Mon Sep 17 00:00:00 2001 From: Derrick Stolee Date: Fri, 6 Apr 2018 19:09:38 +0000 Subject: [PATCH] treewide: replace maybe_tree with accessor methods In anticipation of making trees load lazily, create a Coccinelle script (contrib/coccinelle/commit.cocci) to ensure that all references to the 'maybe_tree' member of struct commit are either mutations or accesses through get_commit_tree() or get_commit_tree_oid(). Apply the Coccinelle script to create the rest of the patch. Signed-off-by: Derrick Stolee Signed-off-by: Junio C Hamano --- blame.c | 18 +++++++++--------- builtin/checkout.c | 18 ++++++++++++------ builtin/diff.c | 2 +- builtin/fast-export.c | 6 +++--- builtin/log.c | 4 ++-- builtin/reflog.c | 2 +- commit-graph.c | 2 +- contrib/coccinelle/commit.cocci | 30 ++++++++++++++++++++++++++++++ fsck.c | 8 +++++--- http-push.c | 2 +- line-log.c | 4 ++-- list-objects.c | 10 +++++----- log-tree.c | 6 +++--- merge-recursive.c | 4 ++-- notes-merge.c | 9 +++++---- packfile.c | 2 +- pretty.c | 5 +++-- ref-filter.c | 2 +- revision.c | 8 ++++---- sequencer.c | 12 ++++++------ sha1_name.c | 2 +- tree.c | 4 ++-- walker.c | 2 +- 23 files changed, 101 insertions(+), 61 deletions(-) create mode 100644 contrib/coccinelle/commit.cocci diff --git a/blame.c b/blame.c index b78e649cac..7f5700b324 100644 --- a/blame.c +++ b/blame.c @@ -553,10 +553,10 @@ static struct blame_origin *find_origin(struct commit *parent, diff_setup_done(&diff_opts); if (is_null_oid(&origin->commit->object.oid)) - do_diff_cache(&parent->maybe_tree->object.oid, &diff_opts); + do_diff_cache(get_commit_tree_oid(parent), &diff_opts); else - diff_tree_oid(&parent->maybe_tree->object.oid, - &origin->commit->maybe_tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parent), + get_commit_tree_oid(origin->commit), "", &diff_opts); diffcore_std(&diff_opts); @@ -622,10 +622,10 @@ static struct blame_origin *find_rename(struct commit *parent, diff_setup_done(&diff_opts); if (is_null_oid(&origin->commit->object.oid)) - do_diff_cache(&parent->maybe_tree->object.oid, &diff_opts); + do_diff_cache(get_commit_tree_oid(parent), &diff_opts); else - diff_tree_oid(&parent->maybe_tree->object.oid, - &origin->commit->maybe_tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parent), + get_commit_tree_oid(origin->commit), "", &diff_opts); diffcore_std(&diff_opts); @@ -1257,10 +1257,10 @@ static void find_copy_in_parent(struct blame_scoreboard *sb, diff_opts.flags.find_copies_harder = 1; if (is_null_oid(&target->commit->object.oid)) - do_diff_cache(&parent->maybe_tree->object.oid, &diff_opts); + do_diff_cache(get_commit_tree_oid(parent), &diff_opts); else - diff_tree_oid(&parent->maybe_tree->object.oid, - &target->commit->maybe_tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parent), + get_commit_tree_oid(target->commit), "", &diff_opts); if (!diff_opts.flags.find_copies_harder) diff --git a/builtin/checkout.c b/builtin/checkout.c index ca6aa29794..4e803ae092 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -484,7 +484,8 @@ static int merge_working_tree(const struct checkout_opts *opts, resolve_undo_clear(); if (opts->force) { - ret = reset_tree(new_branch_info->commit->maybe_tree, opts, 1, writeout_error); + ret = reset_tree(get_commit_tree(new_branch_info->commit), + opts, 1, writeout_error); if (ret) return ret; } else { @@ -570,18 +571,23 @@ static int merge_working_tree(const struct checkout_opts *opts, o.verbosity = 0; work = write_tree_from_memory(&o); - ret = reset_tree(new_branch_info->commit->maybe_tree, opts, 1, + ret = reset_tree(get_commit_tree(new_branch_info->commit), + opts, 1, writeout_error); if (ret) return ret; o.ancestor = old_branch_info->name; o.branch1 = new_branch_info->name; o.branch2 = "local"; - ret = merge_trees(&o, new_branch_info->commit->maybe_tree, work, - old_branch_info->commit->maybe_tree, &result); + ret = merge_trees(&o, + get_commit_tree(new_branch_info->commit), + work, + get_commit_tree(old_branch_info->commit), + &result); if (ret < 0) exit(128); - ret = reset_tree(new_branch_info->commit->maybe_tree, opts, 0, + ret = reset_tree(get_commit_tree(new_branch_info->commit), + opts, 0, writeout_error); strbuf_release(&o.obuf); if (ret) @@ -1002,7 +1008,7 @@ static int parse_branchname_arg(int argc, const char **argv, *source_tree = parse_tree_indirect(rev); } else { parse_commit_or_die(new_branch_info->commit); - *source_tree = new_branch_info->commit->maybe_tree; + *source_tree = get_commit_tree(new_branch_info->commit); } if (!*source_tree) /* case (1): want a tree */ diff --git a/builtin/diff.c b/builtin/diff.c index 34f18a5f3f..bfefff3a84 100644 --- a/builtin/diff.c +++ b/builtin/diff.c @@ -398,7 +398,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) if (!obj) die(_("invalid object '%s' given."), name); if (obj->type == OBJ_COMMIT) - obj = &((struct commit *)obj)->maybe_tree->object; + obj = &get_commit_tree(((struct commit *)obj))->object; if (obj->type == OBJ_TREE) { obj->flags |= flags; diff --git a/builtin/fast-export.c b/builtin/fast-export.c index 91e526b30d..c1304234cd 100644 --- a/builtin/fast-export.c +++ b/builtin/fast-export.c @@ -578,11 +578,11 @@ static void handle_commit(struct commit *commit, struct rev_info *rev, get_object_mark(&commit->parents->item->object) != 0 && !full_tree) { parse_commit_or_die(commit->parents->item); - diff_tree_oid(&commit->parents->item->maybe_tree->object.oid, - &commit->maybe_tree->object.oid, "", &rev->diffopt); + diff_tree_oid(get_commit_tree_oid(commit->parents->item), + get_commit_tree_oid(commit), "", &rev->diffopt); } else - diff_root_tree_oid(&commit->maybe_tree->object.oid, + diff_root_tree_oid(get_commit_tree_oid(commit), "", &rev->diffopt); /* Export the referenced blobs, and remember the marks. */ diff --git a/builtin/log.c b/builtin/log.c index a1fbc608bc..f4d30d2f3d 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -1064,8 +1064,8 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, diff_setup_done(&opts); - diff_tree_oid(&origin->maybe_tree->object.oid, - &head->maybe_tree->object.oid, + diff_tree_oid(get_commit_tree_oid(origin), + get_commit_tree_oid(head), "", &opts); diffcore_std(&opts); diff_flush(&opts); diff --git a/builtin/reflog.c b/builtin/reflog.c index 29d80a35a1..1ce4276d31 100644 --- a/builtin/reflog.c +++ b/builtin/reflog.c @@ -153,7 +153,7 @@ static int commit_is_complete(struct commit *commit) for (i = 0; i < found.nr; i++) { struct commit *c = (struct commit *)found.objects[i].item; - if (!tree_is_complete(&c->maybe_tree->object.oid)) { + if (!tree_is_complete(get_commit_tree_oid(c))) { is_incomplete = 1; c->object.flags |= INCOMPLETE; } diff --git a/commit-graph.c b/commit-graph.c index 49c622c556..264aa6d919 100644 --- a/commit-graph.c +++ b/commit-graph.c @@ -369,7 +369,7 @@ static void write_graph_chunk_data(struct hashfile *f, int hash_len, uint32_t packedDate[2]; parse_commit(*list); - hashwrite(f, (*list)->maybe_tree->object.oid.hash, hash_len); + hashwrite(f, get_commit_tree_oid(*list)->hash, hash_len); parent = (*list)->parents; diff --git a/contrib/coccinelle/commit.cocci b/contrib/coccinelle/commit.cocci new file mode 100644 index 0000000000..ac38525941 --- /dev/null +++ b/contrib/coccinelle/commit.cocci @@ -0,0 +1,30 @@ +@@ +expression c; +@@ +- &c->maybe_tree->object.oid ++ get_commit_tree_oid(c) + +@@ +expression c; +@@ +- c->maybe_tree->object.oid.hash ++ get_commit_tree_oid(c)->hash + +@@ +expression c; +@@ +- c->maybe_tree ++ get_commit_tree(c) + +@@ +expression c; +expression s; +@@ +- get_commit_tree(c) = s ++ c->maybe_tree = s + +@@ +expression c; +@@ +- return get_commit_tree(c); ++ return c->maybe_tree; diff --git a/fsck.c b/fsck.c index 3228ca5bee..695fd71b13 100644 --- a/fsck.c +++ b/fsck.c @@ -396,9 +396,11 @@ static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_optio name = get_object_name(options, &commit->object); if (name) - put_object_name(options, &commit->maybe_tree->object, "%s:", name); + put_object_name(options, &get_commit_tree(commit)->object, + "%s:", name); - result = options->walk((struct object *)commit->maybe_tree, OBJ_TREE, data, options); + result = options->walk((struct object *)get_commit_tree(commit), + OBJ_TREE, data, options); if (result < 0) return result; res = result; @@ -772,7 +774,7 @@ static int fsck_commit_buffer(struct commit *commit, const char *buffer, err = fsck_ident(&buffer, &commit->object, options); if (err) return err; - if (!commit->maybe_tree) { + if (!get_commit_tree(commit)) { err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", sha1_to_hex(tree_sha1)); if (err) return err; diff --git a/http-push.c b/http-push.c index d83479f32f..53a217291e 100644 --- a/http-push.c +++ b/http-push.c @@ -1330,7 +1330,7 @@ static int get_delta(struct rev_info *revs, struct remote_lock *lock) int count = 0; while ((commit = get_revision(revs)) != NULL) { - p = process_tree(commit->maybe_tree, p); + p = process_tree(get_commit_tree(commit), p); commit->object.flags |= LOCAL; if (!(commit->object.flags & UNINTERESTING)) count += add_send_request(&commit->object, lock); diff --git a/line-log.c b/line-log.c index e714969ca2..437d44c00a 100644 --- a/line-log.c +++ b/line-log.c @@ -817,8 +817,8 @@ static void queue_diffs(struct line_log_data *range, assert(commit); DIFF_QUEUE_CLEAR(&diff_queued_diff); - diff_tree_oid(parent ? &parent->maybe_tree->object.oid : NULL, - &commit->maybe_tree->object.oid, "", opt); + diff_tree_oid(parent ? get_commit_tree_oid(parent) : NULL, + get_commit_tree_oid(commit), "", opt); if (opt->detect_rename) { filter_diffs_for_paths(range, 1); if (diff_might_be_rename()) diff --git a/list-objects.c b/list-objects.c index bfd09f545c..3eec510357 100644 --- a/list-objects.c +++ b/list-objects.c @@ -195,7 +195,7 @@ static void mark_edge_parents_uninteresting(struct commit *commit, struct commit *parent = parents->item; if (!(parent->object.flags & UNINTERESTING)) continue; - mark_tree_uninteresting(parent->maybe_tree); + mark_tree_uninteresting(get_commit_tree(parent)); if (revs->edge_hint && !(parent->object.flags & SHOWN)) { parent->object.flags |= SHOWN; show_edge(parent); @@ -212,7 +212,7 @@ void mark_edges_uninteresting(struct rev_info *revs, show_edge_fn show_edge) struct commit *commit = list->item; if (commit->object.flags & UNINTERESTING) { - mark_tree_uninteresting(commit->maybe_tree); + mark_tree_uninteresting(get_commit_tree(commit)); if (revs->edge_hint_aggressive && !(commit->object.flags & SHOWN)) { commit->object.flags |= SHOWN; show_edge(commit); @@ -227,7 +227,7 @@ void mark_edges_uninteresting(struct rev_info *revs, show_edge_fn show_edge) struct commit *commit = (struct commit *)obj; if (obj->type != OBJ_COMMIT || !(obj->flags & UNINTERESTING)) continue; - mark_tree_uninteresting(commit->maybe_tree); + mark_tree_uninteresting(get_commit_tree(commit)); if (!(obj->flags & SHOWN)) { obj->flags |= SHOWN; show_edge(commit); @@ -300,8 +300,8 @@ static void do_traverse(struct rev_info *revs, * an uninteresting boundary commit may not have its tree * parsed yet, but we are not going to show them anyway */ - if (commit->maybe_tree) - add_pending_tree(revs, commit->maybe_tree); + if (get_commit_tree(commit)) + add_pending_tree(revs, get_commit_tree(commit)); show_commit(commit, show_data); if (revs->tree_blobs_in_commit_order) diff --git a/log-tree.c b/log-tree.c index 99499af57c..c106bd70df 100644 --- a/log-tree.c +++ b/log-tree.c @@ -806,7 +806,7 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log return 0; parse_commit_or_die(commit); - oid = &commit->maybe_tree->object.oid; + oid = get_commit_tree_oid(commit); /* Root commit? */ parents = get_saved_parents(opt, commit); @@ -831,7 +831,7 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log * we merged _in_. */ parse_commit_or_die(parents->item); - diff_tree_oid(&parents->item->maybe_tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parents->item), oid, "", &opt->diffopt); log_tree_diff_flush(opt); return !opt->loginfo; @@ -846,7 +846,7 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log struct commit *parent = parents->item; parse_commit_or_die(parent); - diff_tree_oid(&parent->maybe_tree->object.oid, + diff_tree_oid(get_commit_tree_oid(parent), oid, "", &opt->diffopt); log_tree_diff_flush(opt); diff --git a/merge-recursive.c b/merge-recursive.c index 0f75d75d17..8de6e36527 100644 --- a/merge-recursive.c +++ b/merge-recursive.c @@ -2154,8 +2154,8 @@ int merge_recursive(struct merge_options *o, read_cache(); o->ancestor = "merged common ancestors"; - clean = merge_trees(o, h1->maybe_tree, h2->maybe_tree, - merged_common_ancestors->maybe_tree, + clean = merge_trees(o, get_commit_tree(h1), get_commit_tree(h2), + get_commit_tree(merged_common_ancestors), &mrtree); if (clean < 0) { flush_output(o); diff --git a/notes-merge.c b/notes-merge.c index 1d3edc8942..4a73a2169b 100644 --- a/notes-merge.c +++ b/notes-merge.c @@ -600,14 +600,14 @@ int notes_merge(struct notes_merge_options *o, printf("No merge base found; doing history-less merge\n"); } else if (!bases->next) { base_oid = &bases->item->object.oid; - base_tree_oid = &bases->item->maybe_tree->object.oid; + base_tree_oid = get_commit_tree_oid(bases->item); if (o->verbosity >= 4) printf("One merge base found (%.7s)\n", oid_to_hex(base_oid)); } else { /* TODO: How to handle multiple merge-bases? */ base_oid = &bases->item->object.oid; - base_tree_oid = &bases->item->maybe_tree->object.oid; + base_tree_oid = get_commit_tree_oid(bases->item); if (o->verbosity >= 3) printf("Multiple merge bases found. Using the first " "(%.7s)\n", oid_to_hex(base_oid)); @@ -634,8 +634,9 @@ int notes_merge(struct notes_merge_options *o, goto found_result; } - result = merge_from_diffs(o, base_tree_oid, &local->maybe_tree->object.oid, - &remote->maybe_tree->object.oid, local_tree); + result = merge_from_diffs(o, base_tree_oid, + get_commit_tree_oid(local), + get_commit_tree_oid(remote), local_tree); if (result != 0) { /* non-trivial merge (with or without conflicts) */ /* Commit (partial) result */ diff --git a/packfile.c b/packfile.c index 3eb9c4a36e..88ba819151 100644 --- a/packfile.c +++ b/packfile.c @@ -1925,7 +1925,7 @@ static int add_promisor_object(const struct object_id *oid, struct commit *commit = (struct commit *) obj; struct commit_list *parents = commit->parents; - oidset_insert(set, &commit->maybe_tree->object.oid); + oidset_insert(set, get_commit_tree_oid(commit)); for (; parents; parents = parents->next) oidset_insert(set, &parents->item->object.oid); } else if (obj->type == OBJ_TAG) { diff --git a/pretty.c b/pretty.c index 42095ea495..15997f5e01 100644 --- a/pretty.c +++ b/pretty.c @@ -1161,10 +1161,11 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */ strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET)); return 1; case 'T': /* tree hash */ - strbuf_addstr(sb, oid_to_hex(&commit->maybe_tree->object.oid)); + strbuf_addstr(sb, oid_to_hex(get_commit_tree_oid(commit))); return 1; case 't': /* abbreviated tree hash */ - strbuf_add_unique_abbrev(sb, commit->maybe_tree->object.oid.hash, + strbuf_add_unique_abbrev(sb, + get_commit_tree_oid(commit)->hash, c->pretty_ctx->abbrev); return 1; case 'P': /* parent hashes */ diff --git a/ref-filter.c b/ref-filter.c index a59654cfd3..cffd8bf3ce 100644 --- a/ref-filter.c +++ b/ref-filter.c @@ -815,7 +815,7 @@ static void grab_commit_values(struct atom_value *val, int deref, struct object if (deref) name++; if (!strcmp(name, "tree")) { - v->s = xstrdup(oid_to_hex(&commit->maybe_tree->object.oid)); + v->s = xstrdup(oid_to_hex(get_commit_tree_oid(commit))); } else if (!strcmp(name, "numparent")) { v->value = commit_list_count(commit->parents); diff --git a/revision.c b/revision.c index f61d1c9307..d64d2a859e 100644 --- a/revision.c +++ b/revision.c @@ -439,8 +439,8 @@ static void file_change(struct diff_options *options, static int rev_compare_tree(struct rev_info *revs, struct commit *parent, struct commit *commit) { - struct tree *t1 = parent->maybe_tree; - struct tree *t2 = commit->maybe_tree; + struct tree *t1 = get_commit_tree(parent); + struct tree *t2 = get_commit_tree(commit); if (!t1) return REV_TREE_NEW; @@ -476,7 +476,7 @@ static int rev_compare_tree(struct rev_info *revs, static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit) { int retval; - struct tree *t1 = commit->maybe_tree; + struct tree *t1 = get_commit_tree(commit); if (!t1) return 0; @@ -614,7 +614,7 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit) if (!revs->prune) return; - if (!commit->maybe_tree) + if (!get_commit_tree(commit)) return; if (!commit->parents) { diff --git a/sequencer.c b/sequencer.c index 9269607a48..abebf6988f 100644 --- a/sequencer.c +++ b/sequencer.c @@ -501,8 +501,8 @@ static int do_recursive_merge(struct commit *base, struct commit *next, o.show_rename_progress = 1; head_tree = parse_tree_indirect(head); - next_tree = next ? next->maybe_tree : empty_tree(); - base_tree = base ? base->maybe_tree : empty_tree(); + next_tree = next ? get_commit_tree(next) : empty_tree(); + base_tree = base ? get_commit_tree(base) : empty_tree(); for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++) parse_merge_opt(&o, *xopt); @@ -562,7 +562,7 @@ static int is_index_unchanged(void) return error(_("unable to update cache tree")); return !oidcmp(&active_cache_tree->oid, - &head_commit->maybe_tree->object.oid); + get_commit_tree_oid(head_commit)); } static int write_author_script(const char *message) @@ -1119,7 +1119,7 @@ static int try_to_commit(struct strbuf *msg, const char *author, } if (!(flags & ALLOW_EMPTY) && !oidcmp(current_head ? - ¤t_head->maybe_tree->object.oid : + get_commit_tree_oid(current_head) : &empty_tree_oid, &tree)) { res = 1; /* run 'git commit' to display error message */ goto out; @@ -1217,12 +1217,12 @@ static int is_original_commit_empty(struct commit *commit) if (parse_commit(parent)) return error(_("could not parse parent commit %s"), oid_to_hex(&parent->object.oid)); - ptree_oid = &parent->maybe_tree->object.oid; + ptree_oid = get_commit_tree_oid(parent); } else { ptree_oid = the_hash_algo->empty_tree; /* commit is root */ } - return !oidcmp(ptree_oid, &commit->maybe_tree->object.oid); + return !oidcmp(ptree_oid, get_commit_tree_oid(commit)); } /* diff --git a/sha1_name.c b/sha1_name.c index 6ca2a2de37..c9dead6b80 100644 --- a/sha1_name.c +++ b/sha1_name.c @@ -896,7 +896,7 @@ struct object *peel_to_type(const char *name, int namelen, if (o->type == OBJ_TAG) o = ((struct tag*) o)->tagged; else if (o->type == OBJ_COMMIT) - o = &(((struct commit *) o)->maybe_tree->object); + o = &(get_commit_tree(((struct commit *)o))->object); else { if (name) error("%.*s: expected %s type, but the object " diff --git a/tree.c b/tree.c index dbc5e0be54..dec53f3eca 100644 --- a/tree.c +++ b/tree.c @@ -109,7 +109,7 @@ static int read_tree_1(struct tree *tree, struct strbuf *base, oid_to_hex(entry.oid), base->buf, entry.path); - oidcpy(&oid, &commit->maybe_tree->object.oid); + oidcpy(&oid, get_commit_tree_oid(commit)); } else continue; @@ -248,7 +248,7 @@ struct tree *parse_tree_indirect(const struct object_id *oid) if (obj->type == OBJ_TREE) return (struct tree *) obj; else if (obj->type == OBJ_COMMIT) - obj = &(((struct commit *) obj)->maybe_tree->object); + obj = &(get_commit_tree(((struct commit *)obj))->object); else if (obj->type == OBJ_TAG) obj = ((struct tag *) obj)->tagged; else diff --git a/walker.c b/walker.c index 1d5f3059a2..f51b855872 100644 --- a/walker.c +++ b/walker.c @@ -87,7 +87,7 @@ static int process_commit(struct walker *walker, struct commit *commit) walker_say(walker, "walk %s\n", oid_to_hex(&commit->object.oid)); if (walker->get_tree) { - if (process(walker, &commit->maybe_tree->object)) + if (process(walker, &get_commit_tree(commit)->object)) return -1; if (!walker->get_all) walker->get_tree = 0;