[PATCH 26/27] upload-pack: add get_reachable_list()
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
object.h | 2 +-
upload-pack.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++---
2 files changed, 50 insertions(+), 4 deletions(-)
diff --git a/object.h b/object.h
index f8b6442..614a006 100644
--- a/object.h
+++ b/object.h
@@ -31,7 +31,7 @@ struct object_array {
* revision.h: 0---------10 26
* fetch-pack.c: 0---4
* walker.c: 0-2
- * upload-pack.c: 11----------------19
+ * upload-pack.c: 4 11----------------19
* builtin/blame.c: 12-13
* bisect.c: 16
* bundle.c: 16
diff --git a/upload-pack.c b/upload-pack.c
index 5942f99..1d4f914 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -453,7 +453,8 @@ static int is_our_ref(struct object *o)
}
static int do_reachable_revlist(struct child_process *cmd,
- struct object_array *src)
+ struct object_array *src,
+ struct object_array *reachable)
{
static const char *argv[] = {
"rev-list", "--stdin", NULL,
@@ -484,6 +485,8 @@ static int do_reachable_revlist(struct child_process *cmd,
o = get_indexed_object(--i);
if (!o)
continue;
+ if (reachable && o->type == OBJ_COMMIT)
+ o->flags &= ~TMP_MARK;
if (!is_our_ref(o))
continue;
memcpy(namebuf + 1, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ);
@@ -495,8 +498,13 @@ static int do_reachable_revlist(struct child_process *cmd,
namebuf[40] = '\n';
for (i = 0; i < src->nr; i++) {
o = src->objects[i].item;
- if (is_our_ref(o))
+ if (is_our_ref(o)) {
+ if (reachable)
+ add_object_array(o, NULL, reachable);
continue;
+ }
+ if (reachable && o->type == OBJ_COMMIT)
+ o->flags |= TMP_MARK;
memcpy(namebuf, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ);
if (write_in_full(cmd->in, namebuf, 41) < 0) {
sigchain_pop(SIGPIPE);
@@ -517,13 +525,51 @@ error:
return -1;
}
+static int get_reachable_list(struct object_array *src,
+ struct object_array *reachable)
+{
+ struct child_process cmd = CHILD_PROCESS_INIT;
+ int i, ret = do_reachable_revlist(&cmd, src, reachable);
+ struct object *o;
+ char namebuf[42]; /* ^ + SHA-1 + LF */
+
+ if (ret < 0)
+ return -1;
+
+ while ((i = read_in_full(cmd.out, namebuf, 41)) == 41) {
+ struct object_id sha1;
+
+ if (namebuf[40] != '\n' || get_oid_hex(namebuf, &sha1))
+ break;
+
+ o = lookup_object(sha1.hash);
+ if (o && o->type == OBJ_COMMIT) {
+ o->flags &= ~TMP_MARK;
+ }
+ }
+ for (i = get_max_object_index(); 0 < i; i--) {
+ o = get_indexed_object(i - 1);
+ if (o && o->type == OBJ_COMMIT &&
+ (o->flags & TMP_MARK)) {
+ add_object_array(o, NULL, reachable);
+ o->flags &= ~TMP_MARK;
+ }
+ }
+ close(cmd.out);
+
+ if (finish_command(&cmd))
+ return -1;
+
+ return 0;
+}
+
static int check_unreachable(struct object_array *src)
{
struct child_process cmd = CHILD_PROCESS_INIT;
char buf[1];
int i;
- if (do_reachable_revlist(&cmd, src) < 0)
+ if (do_reachable_revlist(&cmd, src, NULL) < 0)
return 0;
/*
--
2.8.2.524.g6ff3d78
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>