diff options
Diffstat (limited to 'third_party/git/list-objects.c')
| -rw-r--r-- | third_party/git/list-objects.c | 423 |
1 files changed, 0 insertions, 423 deletions
diff --git a/third_party/git/list-objects.c b/third_party/git/list-objects.c deleted file mode 100644 index e19589baa0..0000000000 --- a/third_party/git/list-objects.c +++ /dev/null @@ -1,423 +0,0 @@ -#include "cache.h" -#include "tag.h" -#include "commit.h" -#include "tree.h" -#include "blob.h" -#include "diff.h" -#include "tree-walk.h" -#include "revision.h" -#include "list-objects.h" -#include "list-objects-filter.h" -#include "list-objects-filter-options.h" -#include "packfile.h" -#include "object-store.h" -#include "trace.h" - -struct traversal_context { - struct rev_info *revs; - show_object_fn show_object; - show_commit_fn show_commit; - void *show_data; - struct filter *filter; -}; - -static void process_blob(struct traversal_context *ctx, - struct blob *blob, - struct strbuf *path, - const char *name) -{ - struct object *obj = &blob->object; - size_t pathlen; - enum list_objects_filter_result r; - - if (!ctx->revs->blob_objects) - return; - if (!obj) - die("bad blob object"); - if (obj->flags & (UNINTERESTING | SEEN)) - return; - - /* - * Pre-filter known-missing objects when explicitly requested. - * Otherwise, a missing object error message may be reported - * later (depending on other filtering criteria). - * - * Note that this "--exclude-promisor-objects" pre-filtering - * may cause the actual filter to report an incomplete list - * of missing objects. - */ - if (ctx->revs->exclude_promisor_objects && - !has_object_file(&obj->oid) && - is_promisor_object(&obj->oid)) - return; - - pathlen = path->len; - strbuf_addstr(path, name); - r = list_objects_filter__filter_object(ctx->revs->repo, - LOFS_BLOB, obj, - path->buf, &path->buf[pathlen], - ctx->filter); - if (r & LOFR_MARK_SEEN) - obj->flags |= SEEN; - if (r & LOFR_DO_SHOW) - ctx->show_object(obj, path->buf, ctx->show_data); - strbuf_setlen(path, pathlen); -} - -/* - * Processing a gitlink entry currently does nothing, since - * we do not recurse into the subproject. - * - * We *could* eventually add a flag that actually does that, - * which would involve: - * - is the subproject actually checked out? - * - if so, see if the subproject has already been added - * to the alternates list, and add it if not. - * - process the commit (or tag) the gitlink points to - * recursively. - * - * However, it's unclear whether there is really ever any - * reason to see superprojects and subprojects as such a - * "unified" object pool (potentially resulting in a totally - * humongous pack - avoiding which was the whole point of - * having gitlinks in the first place!). - * - * So for now, there is just a note that we *could* follow - * the link, and how to do it. Whether it necessarily makes - * any sense what-so-ever to ever do that is another issue. - */ -static void process_gitlink(struct traversal_context *ctx, - const unsigned char *sha1, - struct strbuf *path, - const char *name) -{ - /* Nothing to do */ -} - -static void process_tree(struct traversal_context *ctx, - struct tree *tree, - struct strbuf *base, - const char *name); - -static void process_tree_contents(struct traversal_context *ctx, - struct tree *tree, - struct strbuf *base) -{ - struct tree_desc desc; - struct name_entry entry; - enum interesting match = ctx->revs->diffopt.pathspec.nr == 0 ? - all_entries_interesting : entry_not_interesting; - - init_tree_desc(&desc, tree->buffer, tree->size); - - while (tree_entry(&desc, &entry)) { - if (match != all_entries_interesting) { - match = tree_entry_interesting(ctx->revs->repo->index, - &entry, base, 0, - &ctx->revs->diffopt.pathspec); - if (match == all_entries_not_interesting) - break; - if (match == entry_not_interesting) - continue; - } - - if (S_ISDIR(entry.mode)) { - struct tree *t = lookup_tree(ctx->revs->repo, &entry.oid); - if (!t) { - die(_("entry '%s' in tree %s has tree mode, " - "but is not a tree"), - entry.path, oid_to_hex(&tree->object.oid)); - } - t->object.flags |= NOT_USER_GIVEN; - process_tree(ctx, t, base, entry.path); - } - else if (S_ISGITLINK(entry.mode)) - process_gitlink(ctx, entry.oid.hash, - base, entry.path); - else { - struct blob *b = lookup_blob(ctx->revs->repo, &entry.oid); - if (!b) { - die(_("entry '%s' in tree %s has blob mode, " - "but is not a blob"), - entry.path, oid_to_hex(&tree->object.oid)); - } - b->object.flags |= NOT_USER_GIVEN; - process_blob(ctx, b, base, entry.path); - } - } -} - -static void process_tree(struct traversal_context *ctx, - struct tree *tree, - struct strbuf *base, - const char *name) -{ - struct object *obj = &tree->object; - struct rev_info *revs = ctx->revs; - int baselen = base->len; - enum list_objects_filter_result r; - int failed_parse; - - if (!revs->tree_objects) - return; - if (!obj) - die("bad tree object"); - if (obj->flags & (UNINTERESTING | SEEN)) - return; - - failed_parse = parse_tree_gently(tree, 1); - if (failed_parse) { - if (revs->ignore_missing_links) - return; - - /* - * Pre-filter known-missing tree objects when explicitly - * requested. This may cause the actual filter to report - * an incomplete list of missing objects. - */ - if (revs->exclude_promisor_objects && - is_promisor_object(&obj->oid)) - return; - - if (!revs->do_not_die_on_missing_tree) - die("bad tree object %s", oid_to_hex(&obj->oid)); - } - - strbuf_addstr(base, name); - r = list_objects_filter__filter_object(ctx->revs->repo, - LOFS_BEGIN_TREE, obj, - base->buf, &base->buf[baselen], - ctx->filter); - if (r & LOFR_MARK_SEEN) - obj->flags |= SEEN; - if (r & LOFR_DO_SHOW) - ctx->show_object(obj, base->buf, ctx->show_data); - if (base->len) - strbuf_addch(base, '/'); - - if (r & LOFR_SKIP_TREE) - trace_printf("Skipping contents of tree %s...\n", base->buf); - else if (!failed_parse) - process_tree_contents(ctx, tree, base); - - r = list_objects_filter__filter_object(ctx->revs->repo, - LOFS_END_TREE, obj, - base->buf, &base->buf[baselen], - ctx->filter); - if (r & LOFR_MARK_SEEN) - obj->flags |= SEEN; - if (r & LOFR_DO_SHOW) - ctx->show_object(obj, base->buf, ctx->show_data); - - strbuf_setlen(base, baselen); - free_tree_buffer(tree); -} - -static void mark_edge_parents_uninteresting(struct commit *commit, - struct rev_info *revs, - show_edge_fn show_edge) -{ - struct commit_list *parents; - - for (parents = commit->parents; parents; parents = parents->next) { - struct commit *parent = parents->item; - if (!(parent->object.flags & UNINTERESTING)) - continue; - mark_tree_uninteresting(revs->repo, get_commit_tree(parent)); - if (revs->edge_hint && !(parent->object.flags & SHOWN)) { - parent->object.flags |= SHOWN; - show_edge(parent); - } - } -} - -static void add_edge_parents(struct commit *commit, - struct rev_info *revs, - show_edge_fn show_edge, - struct oidset *set) -{ - struct commit_list *parents; - - for (parents = commit->parents; parents; parents = parents->next) { - struct commit *parent = parents->item; - struct tree *tree = get_commit_tree(parent); - - if (!tree) - continue; - - oidset_insert(set, &tree->object.oid); - - if (!(parent->object.flags & UNINTERESTING)) - continue; - tree->object.flags |= UNINTERESTING; - - if (revs->edge_hint && !(parent->object.flags & SHOWN)) { - parent->object.flags |= SHOWN; - show_edge(parent); - } - } -} - -void mark_edges_uninteresting(struct rev_info *revs, - show_edge_fn show_edge, - int sparse) -{ - struct commit_list *list; - int i; - - if (sparse) { - struct oidset set; - oidset_init(&set, 16); - - for (list = revs->commits; list; list = list->next) { - struct commit *commit = list->item; - struct tree *tree = get_commit_tree(commit); - - if (commit->object.flags & UNINTERESTING) - tree->object.flags |= UNINTERESTING; - - oidset_insert(&set, &tree->object.oid); - add_edge_parents(commit, revs, show_edge, &set); - } - - mark_trees_uninteresting_sparse(revs->repo, &set); - oidset_clear(&set); - } else { - for (list = revs->commits; list; list = list->next) { - struct commit *commit = list->item; - if (commit->object.flags & UNINTERESTING) { - mark_tree_uninteresting(revs->repo, - get_commit_tree(commit)); - if (revs->edge_hint_aggressive && !(commit->object.flags & SHOWN)) { - commit->object.flags |= SHOWN; - show_edge(commit); - } - continue; - } - mark_edge_parents_uninteresting(commit, revs, show_edge); - } - } - - if (revs->edge_hint_aggressive) { - for (i = 0; i < revs->cmdline.nr; i++) { - struct object *obj = revs->cmdline.rev[i].item; - struct commit *commit = (struct commit *)obj; - if (obj->type != OBJ_COMMIT || !(obj->flags & UNINTERESTING)) - continue; - mark_tree_uninteresting(revs->repo, - get_commit_tree(commit)); - if (!(obj->flags & SHOWN)) { - obj->flags |= SHOWN; - show_edge(commit); - } - } - } -} - -static void add_pending_tree(struct rev_info *revs, struct tree *tree) -{ - add_pending_object(revs, &tree->object, ""); -} - -static void traverse_trees_and_blobs(struct traversal_context *ctx, - struct strbuf *base) -{ - int i; - - assert(base->len == 0); - - for (i = 0; i < ctx->revs->pending.nr; i++) { - struct object_array_entry *pending = ctx->revs->pending.objects + i; - struct object *obj = pending->item; - const char *name = pending->name; - const char *path = pending->path; - if (obj->flags & (UNINTERESTING | SEEN)) - continue; - if (obj->type == OBJ_TAG) { - obj->flags |= SEEN; - ctx->show_object(obj, name, ctx->show_data); - continue; - } - if (!path) - path = ""; - if (obj->type == OBJ_TREE) { - process_tree(ctx, (struct tree *)obj, base, path); - continue; - } - if (obj->type == OBJ_BLOB) { - process_blob(ctx, (struct blob *)obj, base, path); - continue; - } - die("unknown pending object %s (%s)", - oid_to_hex(&obj->oid), name); - } - object_array_clear(&ctx->revs->pending); -} - -static void do_traverse(struct traversal_context *ctx) -{ - struct commit *commit; - struct strbuf csp; /* callee's scratch pad */ - strbuf_init(&csp, PATH_MAX); - - while ((commit = get_revision(ctx->revs)) != NULL) { - /* - * an uninteresting boundary commit may not have its tree - * parsed yet, but we are not going to show them anyway - */ - if (!ctx->revs->tree_objects) - ; /* do not bother loading tree */ - else if (get_commit_tree(commit)) { - struct tree *tree = get_commit_tree(commit); - tree->object.flags |= NOT_USER_GIVEN; - add_pending_tree(ctx->revs, tree); - } else if (commit->object.parsed) { - die(_("unable to load root tree for commit %s"), - oid_to_hex(&commit->object.oid)); - } - ctx->show_commit(commit, ctx->show_data); - - if (ctx->revs->tree_blobs_in_commit_order) - /* - * NEEDSWORK: Adding the tree and then flushing it here - * needs a reallocation for each commit. Can we pass the - * tree directory without allocation churn? - */ - traverse_trees_and_blobs(ctx, &csp); - } - traverse_trees_and_blobs(ctx, &csp); - strbuf_release(&csp); -} - -void traverse_commit_list(struct rev_info *revs, - show_commit_fn show_commit, - show_object_fn show_object, - void *show_data) -{ - struct traversal_context ctx; - ctx.revs = revs; - ctx.show_commit = show_commit; - ctx.show_object = show_object; - ctx.show_data = show_data; - ctx.filter = NULL; - do_traverse(&ctx); -} - -void traverse_commit_list_filtered( - struct list_objects_filter_options *filter_options, - struct rev_info *revs, - show_commit_fn show_commit, - show_object_fn show_object, - void *show_data, - struct oidset *omitted) -{ - struct traversal_context ctx; - - ctx.revs = revs; - ctx.show_object = show_object; - ctx.show_commit = show_commit; - ctx.show_data = show_data; - ctx.filter = list_objects_filter__init(omitted, filter_options); - do_traverse(&ctx); - list_objects_filter__free(ctx.filter); -} |