git-svn: several graft-branches improvements

diff --git a/fetch.c b/fetch.c
index f7f8902580f0f5e4eb7a63000f9987e63715cd09..238032b798008cd1f96d5083b63dc582f8191a1d 100644 (file)
--- a/fetch.c
+++ b/fetch.c
@@ -3,11 +3,13 @@
 #include "cache.h"
 #include "commit.h"
 #include "tree.h"
+#include "tree-walk.h"
 #include "tag.h"
 #include "blob.h"
 #include "refs.h"
 
 const char *write_ref = NULL;
+const char *write_ref_log_details = NULL;
 
 int get_tree = 0;
 int get_history = 0;
@@ -36,21 +38,33 @@ static int process(struct object *obj);
 
 static int process_tree(struct tree *tree)
 {
-       struct tree_entry_list *entry;
+       struct tree_desc desc;
+       struct name_entry entry;
 
        if (parse_tree(tree))
                return -1;
 
-       entry = tree->entries;
-       tree->entries = NULL;
-       while (entry) {
-               struct tree_entry_list *next = entry->next;
-               if (process(entry->item.any))
+       desc.buf = tree->buffer;
+       desc.size = tree->size;
+       while (tree_entry(&desc, &entry)) {
+               struct object *obj = NULL;
+
+               if (S_ISDIR(entry.mode)) {
+                       struct tree *tree = lookup_tree(entry.sha1);
+                       if (tree)
+                               obj = &tree->object;
+               }
+               else {
+                       struct blob *blob = lookup_blob(entry.sha1);
+                       if (blob)
+                               obj = &blob->object;
+               }
+               if (!obj || process(obj))
                        return -1;
-               free(entry->name);
-               free(entry);
-               entry = next;
        }
+       free(tree->buffer);
+       tree->buffer = NULL;
+       tree->size = 0;
        return 0;
 }
 
@@ -104,27 +118,27 @@ static struct object_list **process_queue_end = &process_queue;
 
 static int process_object(struct object *obj)
 {
-       if (obj->type == commit_type) {
+       if (obj->type == TYPE_COMMIT) {
                if (process_commit((struct commit *)obj))
                        return -1;
                return 0;
        }
-       if (obj->type == tree_type) {
+       if (obj->type == TYPE_TREE) {
                if (process_tree((struct tree *)obj))
                        return -1;
                return 0;
        }
-       if (obj->type == blob_type) {
+       if (obj->type == TYPE_BLOB) {
                return 0;
        }
-       if (obj->type == tag_type) {
+       if (obj->type == TYPE_TAG) {
                if (process_tag((struct tag *)obj))
                        return -1;
                return 0;
        }
        return error("Unable to determine requirements "
                     "of type %s for %s",
-                    obj->type, sha1_to_hex(obj->sha1));
+                    typename(obj->type), sha1_to_hex(obj->sha1));
 }
 
 static int process(struct object *obj)
@@ -136,7 +150,8 @@ static int process(struct object *obj)
        if (has_sha1_file(obj->sha1)) {
                /* We already have it, so we should scan it now. */
                obj->flags |= TO_SCAN;
-       } else {
+       }
+       else {
                if (obj->flags & COMPLETE)
                        return 0;
                prefetch(obj->sha1);
@@ -164,9 +179,7 @@ static int loop(void)
                 */
                if (! (obj->flags & TO_SCAN)) {
                        if (fetch(obj->sha1)) {
-                               report_missing(obj->type
-                                              ? obj->type
-                                              : "object", obj->sha1);
+                               report_missing(typename(obj->type), obj->sha1);
                                return -1;
                        }
                }
@@ -202,23 +215,52 @@ static int mark_complete(const char *path, const unsigned char *sha1)
 
 int pull(char *target)
 {
+       struct ref_lock *lock = NULL;
        unsigned char sha1[20];
+       char *msg;
+       int ret;
 
        save_commit_buffer = 0;
        track_object_refs = 0;
+       if (write_ref) {
+               lock = lock_ref_sha1(write_ref, NULL, 0);
+               if (!lock) {
+                       error("Can't lock ref %s", write_ref);
+                       return -1;
+               }
+       }
 
        if (!get_recover)
                for_each_ref(mark_complete);
 
-       if (interpret_target(target, sha1))
-               return error("Could not interpret %s as something to pull",
-                            target);
-       if (process(lookup_unknown_object(sha1)))
+       if (interpret_target(target, sha1)) {
+               error("Could not interpret %s as something to pull", target);
+               if (lock)
+                       unlock_ref(lock);
                return -1;
-       if (loop())
+       }
+       if (process(lookup_unknown_object(sha1))) {
+               if (lock)
+                       unlock_ref(lock);
+               return -1;
+       }
+       if (loop()) {
+               if (lock)
+                       unlock_ref(lock);
                return -1;
-       
-       if (write_ref)
-               write_ref_sha1_unlocked(write_ref, sha1);
+       }
+
+       if (write_ref) {
+               if (write_ref_log_details) {
+                       msg = xmalloc(strlen(write_ref_log_details) + 12);
+                       sprintf(msg, "fetch from %s", write_ref_log_details);
+               }
+               else
+                       msg = NULL;
+               ret = write_ref_sha1(lock, sha1, msg ? msg : "fetch (unknown)");
+               if (msg)
+                       free(msg);
+               return ret;
+       }
        return 0;
 }