[PATCH] git-tar-tree: make file contents accessible to write_header()

[git.git] / rev-tree.c

diff --git a/rev-tree.c b/rev-tree.c
index fe114ab..bfc8b12 100644 (file)
--- a/rev-tree.c
+++ b/rev-tree.c
@@ -1,10 +1,5 @@
-#define _XOPEN_SOURCE /* glibc2 needs this */
-#define _BSD_SOURCE /* for tm.tm_gmtoff */
-#include <time.h>
-#include <ctype.h>
-
 #include "cache.h"
-#include "revision.h"
+#include "commit.h"
 
 /*
  * revision.h leaves the low 16 bits of the "flags" field of the
@@ -18,38 +13,7 @@ static int basemask = 0;
 
 static void read_cache_file(const char *path)
 {
-       FILE *file = fopen(path, "r");
-       char line[500];
-
-       if (!file)
-               die("bad revtree cache file (%s)", path);
-
-       while (fgets(line, sizeof(line), file)) {
-               unsigned long date;
-               unsigned char sha1[20];
-               struct revision *rev;
-               const char *buf;
-
-               if (sscanf(line, "%lu", &date) != 1)
-                       break;
-               buf = strchr(line, ' ');
-               if (!buf)
-                       break;
-               if (get_sha1_hex(buf+1, sha1))
-                       break;
-               rev = lookup_rev(sha1);
-               rev->flags |= SEEN;
-               rev->date = date;
-
-               /* parents? */
-               while ((buf = strchr(buf+1, ' ')) != NULL) {
-                       unsigned char parent[20];
-                       if (get_sha1_hex(buf + 1, parent))
-                               break;
-                       add_relationship(rev, parent);
-               }
-       }
-       fclose(file);
+       die("no revtree cache file yet");
 }
 
 /*
@@ -61,16 +25,16 @@ static void read_cache_file(const char *path)
  * And sometimes we're only interested in "edge" commits, ie
  * places where the marking changes between parent and child.
  */
-static int interesting(struct revision *rev)
+static int interesting(struct commit *rev)
 {
-       unsigned mask = marked(rev);
+       unsigned mask = rev->object.flags;
 
        if (!mask)
                return 0;
        if (show_edges) {
-               struct parent *p = rev->parent;
+               struct commit_list *p = rev->parents;
                while (p) {
-                       if (mask != marked(p->parent))
+                       if (mask != p->item->object.flags)
                                return 1;
                        p = p->next;
                }
@@ -82,6 +46,23 @@ static int interesting(struct revision *rev)
        return 1;
 }
 
+void process_commit(unsigned char *sha1)
+{
+       struct commit_list *parents;
+       struct commit *obj = lookup_commit(sha1);
+
+       if (obj->object.parsed)
+               return;
+
+       parse_commit(obj);
+       
+       parents = obj->parents;
+       while (parents) {
+               process_commit(parents->item->object.sha1);
+               parents = parents->next;
+       }
+}
+
 /*
  * Usage: rev-tree [--edges] [--cache <cache-file>] <commit-id> [<commit-id2>]
  *
@@ -103,8 +84,7 @@ int main(int argc, char **argv)
                char *arg = argv[i];
 
                if (!strcmp(arg, "--cache")) {
-                       read_cache_file(argv[2]);
-                       i++;
+                       read_cache_file(argv[++i]);
                        continue;
                }
 
@@ -117,9 +97,9 @@ int main(int argc, char **argv)
                        arg++;
                        basemask |= 1<<nr;
                }
-               if (nr >= MAX_COMMITS || get_sha1_hex(arg, sha1[nr]))
+               if (nr >= MAX_COMMITS || get_sha1(arg, sha1[nr]))
                        usage("rev-tree [--edges] [--cache <cache-file>] <commit-id> [<commit-id>]");
-               parse_commit(sha1[nr]);
+               process_commit(sha1[nr]);
                nr++;
        }
 
@@ -127,22 +107,30 @@ int main(int argc, char **argv)
         * Now we have the maximal tree. Walk the different sha files back to the root.
         */
        for (i = 0; i < nr; i++)
-               mark_reachable(lookup_rev(sha1[i]), 1 << i);
+               mark_reachable(&lookup_commit(sha1[i])->object, 1 << i);
 
        /*
         * Now print out the results..
         */
-       for (i = 0; i < nr_revs; i++) {
-               struct revision *rev = revs[i];
-               struct parent *p;
+       for (i = 0; i < nr_objs; i++) {
+               struct object *obj = objs[i];
+               struct commit *commit;
+               struct commit_list *p;
+
+               if (obj->type != commit_type)
+                       continue;
+
+               commit = (struct commit *) obj;
 
-               if (!interesting(rev))
+               if (!interesting(commit))
                        continue;
 
-               printf("%lu %s:%d", rev->date, sha1_to_hex(rev->sha1), marked(rev));
-               p = rev->parent;
+               printf("%lu %s:%d", commit->date, sha1_to_hex(obj->sha1), 
+                      obj->flags);
+               p = commit->parents;
                while (p) {
-                       printf(" %s:%d", sha1_to_hex(p->parent->sha1), marked(p->parent));
+                       printf(" %s:%d", sha1_to_hex(p->item->object.sha1), 
+                              p->item->object.flags);
                        p = p->next;
                }
                printf("\n");