summaryrefslogtreecommitdiff
path: root/builtin/pack-objects.c
diff options
context:
space:
mode:
Diffstat (limited to 'builtin/pack-objects.c')
-rw-r--r--builtin/pack-objects.c65
1 files changed, 51 insertions, 14 deletions
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 80ab6c3..b1895aa 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -409,25 +409,56 @@ static unsigned long write_object(struct sha1file *f,
return hdrlen + datalen;
}
-static int write_one(struct sha1file *f,
- struct object_entry *e,
- off_t *offset)
+enum write_one_status {
+ WRITE_ONE_SKIP = -1, /* already written */
+ WRITE_ONE_BREAK = 0, /* writing this will bust the limit; not written */
+ WRITE_ONE_WRITTEN = 1, /* normal */
+ WRITE_ONE_RECURSIVE = 2 /* already scheduled to be written */
+};
+
+static enum write_one_status write_one(struct sha1file *f,
+ struct object_entry *e,
+ off_t *offset)
{
unsigned long size;
+ int recursing;
- /* offset is non zero if object is written already. */
- if (e->idx.offset || e->preferred_base)
- return -1;
+ /*
+ * we set offset to 1 (which is an impossible value) to mark
+ * the fact that this object is involved in "write its base
+ * first before writing a deltified object" recursion.
+ */
+ recursing = (e->idx.offset == 1);
+ if (recursing) {
+ warning("recursive delta detected for object %s",
+ sha1_to_hex(e->idx.sha1));
+ return WRITE_ONE_RECURSIVE;
+ } else if (e->idx.offset || e->preferred_base) {
+ /* offset is non zero if object is written already. */
+ return WRITE_ONE_SKIP;
+ }
/* if we are deltified, write out base object first. */
- if (e->delta && !write_one(f, e->delta, offset))
- return 0;
+ if (e->delta) {
+ e->idx.offset = 1; /* now recurse */
+ switch (write_one(f, e->delta, offset)) {
+ case WRITE_ONE_RECURSIVE:
+ /* we cannot depend on this one */
+ e->delta = NULL;
+ break;
+ default:
+ break;
+ case WRITE_ONE_BREAK:
+ e->idx.offset = recursing;
+ return WRITE_ONE_BREAK;
+ }
+ }
e->idx.offset = *offset;
size = write_object(f, e, *offset);
if (!size) {
- e->idx.offset = 0;
- return 0;
+ e->idx.offset = recursing;
+ return WRITE_ONE_BREAK;
}
written_list[nr_written++] = &e->idx;
@@ -435,7 +466,7 @@ static int write_one(struct sha1file *f,
if (signed_add_overflows(*offset, size))
die("pack too large for current definition of off_t");
*offset += size;
- return 1;
+ return WRITE_ONE_WRITTEN;
}
static int mark_tagged(const char *path, const unsigned char *sha1, int flag,
@@ -640,7 +671,7 @@ static void write_pack_file(void)
nr_written = 0;
for (; i < nr_objects; i++) {
struct object_entry *e = write_order[i];
- if (!write_one(f, e, &offset))
+ if (write_one(f, e, &offset) == WRITE_ONE_BREAK)
break;
display_progress(progress_state, written);
}
@@ -840,6 +871,10 @@ static int add_object_entry(const unsigned char *sha1, enum object_type type,
off_t offset = find_pack_entry_one(sha1, p);
if (offset) {
if (!found_pack) {
+ if (!is_pack_valid(p)) {
+ warning("packfile %s cannot be accessed", p->pack_name);
+ continue;
+ }
found_offset = offset;
found_pack = p;
}
@@ -1011,7 +1046,7 @@ static void add_pbase_object(struct tree_desc *tree,
while (tree_entry(tree,&entry)) {
if (S_ISGITLINK(entry.mode))
continue;
- cmp = tree_entry_len(entry.path, entry.sha1) != cmplen ? 1 :
+ cmp = tree_entry_len(&entry) != cmplen ? 1 :
memcmp(name, entry.path, cmplen);
if (cmp > 0)
continue;
@@ -2109,7 +2144,9 @@ static void show_commit(struct commit *commit, void *data)
commit->object.flags |= OBJECT_ADDED;
}
-static void show_object(struct object *obj, const struct name_path *path, const char *last)
+static void show_object(struct object *obj,
+ const struct name_path *path, const char *last,
+ void *data)
{
char *name = path_name(path, last);