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authorJunio C Hamano <gitster@pobox.com>2016-07-11 17:31:04 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-07-11 17:31:04 (GMT)
commitbb2d8a817df91c68742e10ace2a791de176f7247 (patch)
tree615ed2efe90c6434e3b5bde3cc0d5418f6d09587
parent89b8710fce0d1b3d99c0a1c218bacb82ff0811e4 (diff)
parentbb9d91b4ed54df7bd970c82971ba2851e6735d72 (diff)
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Merge branch 'sb/submodule-clone-retry'
"git submodule update" that drives many "git clone" could eventually hit flaky servers/network conditions on one of the submodules; the command learned to retry the attempt. * sb/submodule-clone-retry: submodule update: continue when a clone fails submodule--helper: initial clone learns retry logic
-rw-r--r--builtin/submodule--helper.c66
-rwxr-xr-xgit-submodule.sh2
2 files changed, 60 insertions, 8 deletions
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index c7deb55..b22352b 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -590,10 +590,14 @@ struct submodule_update_clone {
/* If we want to stop as fast as possible and return an error */
unsigned quickstop : 1;
+
+ /* failed clones to be retried again */
+ const struct cache_entry **failed_clones;
+ int failed_clones_nr, failed_clones_alloc;
};
#define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \
SUBMODULE_UPDATE_STRATEGY_INIT, 0, -1, NULL, NULL, NULL, NULL, \
- STRING_LIST_INIT_DUP, 0}
+ STRING_LIST_INIT_DUP, 0, NULL, 0, 0}
static void next_submodule_warn_missing(struct submodule_update_clone *suc,
@@ -718,23 +722,47 @@ cleanup:
static int update_clone_get_next_task(struct child_process *child,
struct strbuf *err,
void *suc_cb,
- void **void_task_cb)
+ void **idx_task_cb)
{
struct submodule_update_clone *suc = suc_cb;
+ const struct cache_entry *ce;
+ int index;
for (; suc->current < suc->list.nr; suc->current++) {
- const struct cache_entry *ce = suc->list.entries[suc->current];
+ ce = suc->list.entries[suc->current];
if (prepare_to_clone_next_submodule(ce, child, suc, err)) {
+ int *p = xmalloc(sizeof(*p));
+ *p = suc->current;
+ *idx_task_cb = p;
suc->current++;
return 1;
}
}
+
+ /*
+ * The loop above tried cloning each submodule once, now try the
+ * stragglers again, which we can imagine as an extension of the
+ * entry list.
+ */
+ index = suc->current - suc->list.nr;
+ if (index < suc->failed_clones_nr) {
+ int *p;
+ ce = suc->failed_clones[index];
+ if (!prepare_to_clone_next_submodule(ce, child, suc, err))
+ die("BUG: ce was a submodule before?");
+ p = xmalloc(sizeof(*p));
+ *p = suc->current;
+ *idx_task_cb = p;
+ suc->current ++;
+ return 1;
+ }
+
return 0;
}
static int update_clone_start_failure(struct strbuf *err,
void *suc_cb,
- void *void_task_cb)
+ void *idx_task_cb)
{
struct submodule_update_clone *suc = suc_cb;
suc->quickstop = 1;
@@ -744,15 +772,39 @@ static int update_clone_start_failure(struct strbuf *err,
static int update_clone_task_finished(int result,
struct strbuf *err,
void *suc_cb,
- void *void_task_cb)
+ void *idx_task_cb)
{
+ const struct cache_entry *ce;
struct submodule_update_clone *suc = suc_cb;
+ int *idxP = *(int**)idx_task_cb;
+ int idx = *idxP;
+ free(idxP);
+
if (!result)
return 0;
- suc->quickstop = 1;
- return 1;
+ if (idx < suc->list.nr) {
+ ce = suc->list.entries[idx];
+ strbuf_addf(err, _("Failed to clone '%s'. Retry scheduled"),
+ ce->name);
+ strbuf_addch(err, '\n');
+ ALLOC_GROW(suc->failed_clones,
+ suc->failed_clones_nr + 1,
+ suc->failed_clones_alloc);
+ suc->failed_clones[suc->failed_clones_nr++] = ce;
+ return 0;
+ } else {
+ idx = suc->current - suc->list.nr;
+ ce = suc->failed_clones[idx];
+ strbuf_addf(err, _("Failed to clone '%s' a second time, aborting"),
+ ce->name);
+ strbuf_addch(err, '\n');
+ suc->quickstop = 1;
+ return 1;
+ }
+
+ return 0;
}
static int update_clone(int argc, const char **argv, const char *prefix)
diff --git a/git-submodule.sh b/git-submodule.sh
index b39ac10..7c62b53 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -705,7 +705,7 @@ cmd_update()
if test $res -gt 0
then
die_msg="$(eval_gettext "Failed to recurse into submodule path '\$displaypath'")"
- if test $res -eq 1
+ if test $res -ne 2
then
err="${err};$die_msg"
continue