add -p: improve error messages
[gitweb.git] / list-objects.c
index b3931fa434dc99a481569697585e3bb21190c932..0966cdc9fa8dd448aa9955a2fb5324ae8ebbf97d 100644 (file)
@@ -7,16 +7,21 @@
 #include "tree-walk.h"
 #include "revision.h"
 #include "list-objects.h"
+#include "list-objects-filter.h"
+#include "list-objects-filter-options.h"
 
 static void process_blob(struct rev_info *revs,
                         struct blob *blob,
                         show_object_fn show,
                         struct strbuf *path,
                         const char *name,
-                        void *cb_data)
+                        void *cb_data,
+                        filter_object_fn filter_fn,
+                        void *filter_data)
 {
        struct object *obj = &blob->object;
        size_t pathlen;
+       enum list_objects_filter_result r = LOFR_MARK_SEEN | LOFR_DO_SHOW;
 
        if (!revs->blob_objects)
                return;
@@ -24,11 +29,17 @@ static void process_blob(struct rev_info *revs,
                die("bad blob object");
        if (obj->flags & (UNINTERESTING | SEEN))
                return;
-       obj->flags |= SEEN;
 
        pathlen = path->len;
        strbuf_addstr(path, name);
-       show(obj, path->buf, cb_data);
+       if (filter_fn)
+               r = filter_fn(LOFS_BLOB, obj,
+                             path->buf, &path->buf[pathlen],
+                             filter_data);
+       if (r & LOFR_MARK_SEEN)
+               obj->flags |= SEEN;
+       if (r & LOFR_DO_SHOW)
+               show(obj, path->buf, cb_data);
        strbuf_setlen(path, pathlen);
 }
 
@@ -69,7 +80,9 @@ static void process_tree(struct rev_info *revs,
                         show_object_fn show,
                         struct strbuf *base,
                         const char *name,
-                        void *cb_data)
+                        void *cb_data,
+                        filter_object_fn filter_fn,
+                        void *filter_data)
 {
        struct object *obj = &tree->object;
        struct tree_desc desc;
@@ -77,6 +90,7 @@ static void process_tree(struct rev_info *revs,
        enum interesting match = revs->diffopt.pathspec.nr == 0 ?
                all_entries_interesting: entry_not_interesting;
        int baselen = base->len;
+       enum list_objects_filter_result r = LOFR_MARK_SEEN | LOFR_DO_SHOW;
 
        if (!revs->tree_objects)
                return;
@@ -90,9 +104,15 @@ static void process_tree(struct rev_info *revs,
                die("bad tree object %s", oid_to_hex(&obj->oid));
        }
 
-       obj->flags |= SEEN;
        strbuf_addstr(base, name);
-       show(obj, base->buf, cb_data);
+       if (filter_fn)
+               r = filter_fn(LOFS_BEGIN_TREE, obj,
+                             base->buf, &base->buf[baselen],
+                             filter_data);
+       if (r & LOFR_MARK_SEEN)
+               obj->flags |= SEEN;
+       if (r & LOFR_DO_SHOW)
+               show(obj, base->buf, cb_data);
        if (base->len)
                strbuf_addch(base, '/');
 
@@ -112,7 +132,7 @@ static void process_tree(struct rev_info *revs,
                        process_tree(revs,
                                     lookup_tree(entry.oid),
                                     show, base, entry.path,
-                                    cb_data);
+                                    cb_data, filter_fn, filter_data);
                else if (S_ISGITLINK(entry.mode))
                        process_gitlink(revs, entry.oid->hash,
                                        show, base, entry.path,
@@ -121,8 +141,19 @@ static void process_tree(struct rev_info *revs,
                        process_blob(revs,
                                     lookup_blob(entry.oid),
                                     show, base, entry.path,
-                                    cb_data);
+                                    cb_data, filter_fn, filter_data);
        }
+
+       if (filter_fn) {
+               r = filter_fn(LOFS_END_TREE, obj,
+                             base->buf, &base->buf[baselen],
+                             filter_data);
+               if (r & LOFR_MARK_SEEN)
+                       obj->flags |= SEEN;
+               if (r & LOFR_DO_SHOW)
+                       show(obj, base->buf, cb_data);
+       }
+
        strbuf_setlen(base, baselen);
        free_tree_buffer(tree);
 }
@@ -183,25 +214,17 @@ static void add_pending_tree(struct rev_info *revs, struct tree *tree)
        add_pending_object(revs, &tree->object, "");
 }
 
-void traverse_commit_list(struct rev_info *revs,
-                         show_commit_fn show_commit,
-                         show_object_fn show_object,
-                         void *data)
+static void traverse_trees_and_blobs(struct rev_info *revs,
+                                    struct strbuf *base,
+                                    show_object_fn show_object,
+                                    void *show_data,
+                                    filter_object_fn filter_fn,
+                                    void *filter_data)
 {
        int i;
-       struct commit *commit;
-       struct strbuf base;
 
-       strbuf_init(&base, PATH_MAX);
-       while ((commit = get_revision(revs)) != NULL) {
-               /*
-                * an uninteresting boundary commit may not have its tree
-                * parsed yet, but we are not going to show them anyway
-                */
-               if (commit->tree)
-                       add_pending_tree(revs, commit->tree);
-               show_commit(commit, data);
-       }
+       assert(base->len == 0);
+
        for (i = 0; i < revs->pending.nr; i++) {
                struct object_array_entry *pending = revs->pending.objects + i;
                struct object *obj = pending->item;
@@ -211,24 +234,89 @@ void traverse_commit_list(struct rev_info *revs,
                        continue;
                if (obj->type == OBJ_TAG) {
                        obj->flags |= SEEN;
-                       show_object(obj, name, data);
+                       show_object(obj, name, show_data);
                        continue;
                }
                if (!path)
                        path = "";
                if (obj->type == OBJ_TREE) {
                        process_tree(revs, (struct tree *)obj, show_object,
-                                    &base, path, data);
+                                    base, path, show_data,
+                                    filter_fn, filter_data);
                        continue;
                }
                if (obj->type == OBJ_BLOB) {
                        process_blob(revs, (struct blob *)obj, show_object,
-                                    &base, path, data);
+                                    base, path, show_data,
+                                    filter_fn, filter_data);
                        continue;
                }
                die("unknown pending object %s (%s)",
                    oid_to_hex(&obj->oid), name);
        }
        object_array_clear(&revs->pending);
-       strbuf_release(&base);
+}
+
+static void do_traverse(struct rev_info *revs,
+                       show_commit_fn show_commit,
+                       show_object_fn show_object,
+                       void *show_data,
+                       filter_object_fn filter_fn,
+                       void *filter_data)
+{
+       struct commit *commit;
+       struct strbuf csp; /* callee's scratch pad */
+       strbuf_init(&csp, PATH_MAX);
+
+       while ((commit = get_revision(revs)) != NULL) {
+               /*
+                * an uninteresting boundary commit may not have its tree
+                * parsed yet, but we are not going to show them anyway
+                */
+               if (commit->tree)
+                       add_pending_tree(revs, commit->tree);
+               show_commit(commit, show_data);
+
+               if (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(revs, &csp,
+                                                show_object, show_data,
+                                                filter_fn, filter_data);
+       }
+       traverse_trees_and_blobs(revs, &csp,
+                                show_object, show_data,
+                                filter_fn, filter_data);
+       strbuf_release(&csp);
+}
+
+void traverse_commit_list(struct rev_info *revs,
+                         show_commit_fn show_commit,
+                         show_object_fn show_object,
+                         void *show_data)
+{
+       do_traverse(revs, show_commit, show_object, show_data, NULL, NULL);
+}
+
+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)
+{
+       filter_object_fn filter_fn = NULL;
+       filter_free_fn filter_free_fn = NULL;
+       void *filter_data = NULL;
+
+       filter_data = list_objects_filter__init(omitted, filter_options,
+                                               &filter_fn, &filter_free_fn);
+       do_traverse(revs, show_commit, show_object, show_data,
+                   filter_fn, filter_data);
+       if (filter_data && filter_free_fn)
+               filter_free_fn(filter_data);
 }