Merge branch 'jc/send-email'
[gitweb.git] / builtin-rev-list.c
index bc48a3e23081264d06f2659181a19b31694dd993..fb7fc92145b6a8baec340176abf40c6b37f45a8e 100644 (file)
@@ -7,6 +7,7 @@
 #include "tree-walk.h"
 #include "diff.h"
 #include "revision.h"
+#include "list-objects.h"
 #include "builtin.h"
 
 /* bits #0-15 in revision.h */
@@ -23,6 +24,7 @@ static const char rev_list_usage[] =
 "    --no-merges\n"
 "    --remove-empty\n"
 "    --all\n"
+"    --stdin\n"
 "  ordering output:\n"
 "    --topo-order\n"
 "    --date-order\n"
@@ -85,7 +87,7 @@ static void show_commit(struct commit *commit)
                static char pretty_header[16384];
                pretty_print_commit(revs.commit_format, commit, ~0,
                                    pretty_header, sizeof(pretty_header),
-                                   revs.abbrev, NULL, NULL);
+                                   revs.abbrev, NULL, NULL, revs.relative_date);
                printf("%s%c", pretty_header, hdr_termination);
        }
        fflush(stdout);
@@ -93,110 +95,28 @@ static void show_commit(struct commit *commit)
                free_commit_list(commit->parents);
                commit->parents = NULL;
        }
-       if (commit->buffer) {
-               free(commit->buffer);
-               commit->buffer = NULL;
-       }
+       free(commit->buffer);
+       commit->buffer = NULL;
 }
 
-static void process_blob(struct blob *blob,
-                        struct object_array *p,
-                        struct name_path *path,
-                        const char *name)
+static void show_object(struct object_array_entry *p)
 {
-       struct object *obj = &blob->object;
-
-       if (!revs.blob_objects)
-               return;
-       if (obj->flags & (UNINTERESTING | SEEN))
-               return;
-       obj->flags |= SEEN;
-       name = strdup(name);
-       add_object(obj, p, path, name);
-}
-
-static void process_tree(struct tree *tree,
-                        struct object_array *p,
-                        struct name_path *path,
-                        const char *name)
-{
-       struct object *obj = &tree->object;
-       struct tree_desc desc;
-       struct name_entry entry;
-       struct name_path me;
-
-       if (!revs.tree_objects)
-               return;
-       if (obj->flags & (UNINTERESTING | SEEN))
-               return;
-       if (parse_tree(tree) < 0)
-               die("bad tree object %s", sha1_to_hex(obj->sha1));
-       obj->flags |= SEEN;
-       name = strdup(name);
-       add_object(obj, p, path, name);
-       me.up = path;
-       me.elem = name;
-       me.elem_len = strlen(name);
-
-       desc.buf = tree->buffer;
-       desc.size = tree->size;
-
-       while (tree_entry(&desc, &entry)) {
-               if (S_ISDIR(entry.mode))
-                       process_tree(lookup_tree(entry.sha1), p, &me, entry.path);
-               else
-                       process_blob(lookup_blob(entry.sha1), p, &me, entry.path);
+       /* An object with name "foo\n0000000..." can be used to
+        * confuse downstream git-pack-objects very badly.
+        */
+       const char *ep = strchr(p->name, '\n');
+       if (ep) {
+               printf("%s %.*s\n", sha1_to_hex(p->item->sha1),
+                      (int) (ep - p->name),
+                      p->name);
        }
-       free(tree->buffer);
-       tree->buffer = NULL;
+       else
+               printf("%s %s\n", sha1_to_hex(p->item->sha1), p->name);
 }
 
-static void show_commit_list(struct rev_info *revs)
+static void show_edge(struct commit *commit)
 {
-       int i;
-       struct commit *commit;
-       struct object_array objects = { 0, 0, NULL };
-
-       while ((commit = get_revision(revs)) != NULL) {
-               process_tree(commit->tree, &objects, NULL, "");
-               show_commit(commit);
-       }
-       for (i = 0; i < revs->pending.nr; i++) {
-               struct object_array_entry *pending = revs->pending.objects + i;
-               struct object *obj = pending->item;
-               const char *name = pending->name;
-               if (obj->flags & (UNINTERESTING | SEEN))
-                       continue;
-               if (obj->type == OBJ_TAG) {
-                       obj->flags |= SEEN;
-                       add_object_array(obj, name, &objects);
-                       continue;
-               }
-               if (obj->type == OBJ_TREE) {
-                       process_tree((struct tree *)obj, &objects, NULL, name);
-                       continue;
-               }
-               if (obj->type == OBJ_BLOB) {
-                       process_blob((struct blob *)obj, &objects, NULL, name);
-                       continue;
-               }
-               die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
-       }
-       for (i = 0; i < objects.nr; i++) {
-               struct object_array_entry *p = objects.objects + i;
-
-               /* An object with name "foo\n0000000..." can be used to
-                * confuse downstream git-pack-objects very badly.
-                */
-               const char *ep = strchr(p->name, '\n');
-               if (ep) {
-                       printf("%s %.*s\n", sha1_to_hex(p->item->sha1),
-                              (int) (ep - p->name),
-                              p->name);
-               }
-               else
-                       printf("%s %s\n", sha1_to_hex(p->item->sha1), p->name);
-       }
+       printf("-%s\n", sha1_to_hex(commit->object.sha1));
 }
 
 /*
@@ -277,32 +197,20 @@ static struct commit_list *find_bisection(struct commit_list *list)
        return best;
 }
 
-static void mark_edge_parents_uninteresting(struct commit *commit)
+static void read_revisions_from_stdin(struct rev_info *revs)
 {
-       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(parent->tree);
-               if (revs.edge_hint && !(parent->object.flags & SHOWN)) {
-                       parent->object.flags |= SHOWN;
-                       printf("-%s\n", sha1_to_hex(parent->object.sha1));
-               }
-       }
-}
+       char line[1000];
 
-static void mark_edges_uninteresting(struct commit_list *list)
-{
-       for ( ; list; list = list->next) {
-               struct commit *commit = list->item;
-
-               if (commit->object.flags & UNINTERESTING) {
-                       mark_tree_uninteresting(commit->tree);
-                       continue;
-               }
-               mark_edge_parents_uninteresting(commit);
+       while (fgets(line, sizeof(line), stdin) != NULL) {
+               int len = strlen(line);
+               if (line[len - 1] == '\n')
+                       line[--len] = 0;
+               if (!len)
+                       break;
+               if (line[0] == '-')
+                       die("options not supported in --stdin mode");
+               if (handle_revision_arg(line, revs, 0, 1))
+                       die("bad revision '%s'", line);
        }
 }
 
@@ -310,6 +218,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
 {
        struct commit_list *list;
        int i;
+       int read_from_stdin = 0;
 
        init_revisions(&revs, prefix);
        revs.abbrev = 0;
@@ -331,6 +240,12 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
                        bisect_list = 1;
                        continue;
                }
+               if (!strcmp(arg, "--stdin")) {
+                       if (read_from_stdin++)
+                               die("--stdin given twice?");
+                       read_revisions_from_stdin(&revs);
+                       continue;
+               }
                usage(rev_list_usage);
 
        }
@@ -354,19 +269,19 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
            revs.diff)
                usage(rev_list_usage);
 
-       save_commit_buffer = revs.verbose_header;
+       save_commit_buffer = revs.verbose_header || revs.grep_filter;
        track_object_refs = 0;
        if (bisect_list)
                revs.limited = 1;
 
        prepare_revision_walk(&revs);
        if (revs.tree_objects)
-               mark_edges_uninteresting(revs.commits);
+               mark_edges_uninteresting(revs.commits, &revs, show_edge);
 
        if (bisect_list)
                revs.commits = find_bisection(revs.commits);
 
-       show_commit_list(&revs);
+       traverse_commit_list(&revs, show_commit, show_object);
 
        return 0;
 }