@@ -763,9 +763,6 @@ static int update_local_ref(struct ref *ref,
what = _("[new ref]");
}
- if ((recurse_submodules != RECURSE_SUBMODULES_OFF) &&
- (recurse_submodules != RECURSE_SUBMODULES_ON))
- check_for_new_submodule_commits(&ref->new_oid);
r = s_update_ref(msg, ref, 0);
format_display(display, r ? '!' : '*', what,
r ? _("unable to update local ref") : NULL,
@@ -779,9 +776,6 @@ static int update_local_ref(struct ref *ref,
strbuf_add_unique_abbrev(&quickref, ¤t->object.oid, DEFAULT_ABBREV);
strbuf_addstr(&quickref, "..");
strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
- if ((recurse_submodules != RECURSE_SUBMODULES_OFF) &&
- (recurse_submodules != RECURSE_SUBMODULES_ON))
- check_for_new_submodule_commits(&ref->new_oid);
r = s_update_ref("fast-forward", ref, 1);
format_display(display, r ? '!' : ' ', quickref.buf,
r ? _("unable to update local ref") : NULL,
@@ -794,9 +788,6 @@ static int update_local_ref(struct ref *ref,
strbuf_add_unique_abbrev(&quickref, ¤t->object.oid, DEFAULT_ABBREV);
strbuf_addstr(&quickref, "...");
strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
- if ((recurse_submodules != RECURSE_SUBMODULES_OFF) &&
- (recurse_submodules != RECURSE_SUBMODULES_ON))
- check_for_new_submodule_commits(&ref->new_oid);
r = s_update_ref("forced-update", ref, 1);
format_display(display, r ? '!' : '+', quickref.buf,
r ? _("unable to update local ref") : _("forced update"),
@@ -892,6 +883,8 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
ref->force = rm->peer_ref->force;
}
+ if (recurse_submodules != RECURSE_SUBMODULES_OFF)
+ check_for_new_submodule_commits(&rm->old_oid);
if (!strcmp(rm->name, "HEAD")) {
kind = "";
@@ -1231,8 +1231,14 @@ struct submodule_parallel_fetch {
int result;
struct string_list changed_submodule_names;
+
+ /* Pending fetches by OIDs */
+ struct fetch_task **oid_fetch_tasks;
+ int oid_fetch_tasks_nr, oid_fetch_tasks_alloc;
};
-#define SPF_INIT {0, ARGV_ARRAY_INIT, NULL, NULL, 0, 0, 0, 0, STRING_LIST_INIT_DUP }
+#define SPF_INIT {0, ARGV_ARRAY_INIT, NULL, NULL, 0, 0, 0, 0, \
+ STRING_LIST_INIT_DUP, \
+ NULL, 0, 0}
static int get_fetch_recurse_config(const struct submodule *submodule,
struct submodule_parallel_fetch *spf)
@@ -1259,6 +1265,76 @@ static int get_fetch_recurse_config(const struct submodule *submodule,
return spf->default_option;
}
+/*
+ * Fetch in progress (if callback data) or
+ * pending (if in oid_fetch_tasks in struct submodule_parallel_fetch)
+ */
+struct fetch_task {
+ struct repository *repo;
+ const struct submodule *sub;
+ unsigned free_sub : 1; /* Do we need to free the submodule? */
+
+ struct oid_array *commits; /* Ensure these commits are fetched */
+};
+
+/**
+ * When a submodule is not defined in .gitmodules, we cannot access it
+ * via the regular submodule-config. Create a fake submodule, which we can
+ * work on.
+ */
+static const struct submodule *get_non_gitmodules_submodule(const char *path)
+{
+ struct submodule *ret = NULL;
+ const char *name = default_name_or_path(path);
+
+ if (!name)
+ return NULL;
+
+ ret = xmalloc(sizeof(*ret));
+ memset(ret, 0, sizeof(*ret));
+ ret->path = name;
+ ret->name = name;
+
+ return (const struct submodule *) ret;
+}
+
+static struct fetch_task *fetch_task_create(struct repository *r,
+ const char *path)
+{
+ struct fetch_task *task = xmalloc(sizeof(*task));
+ memset(task, 0, sizeof(*task));
+
+ task->sub = submodule_from_path(r, &null_oid, path);
+ if (!task->sub) {
+ /*
+ * No entry in .gitmodules? Technically not a submodule,
+ * but historically we supported repositories that happen to be
+ * in-place where a gitlink is. Keep supporting them.
+ */
+ task->sub = get_non_gitmodules_submodule(path);
+ if (!task->sub) {
+ free(task);
+ return NULL;
+ }
+
+ task->free_sub = 1;
+ }
+
+ return task;
+}
+
+static void fetch_task_release(struct fetch_task *p)
+{
+ if (p->free_sub)
+ free((void*)p->sub);
+ p->free_sub = 0;
+ p->sub = NULL;
+
+ if (p->repo)
+ repo_clear(p->repo);
+ FREE_AND_NULL(p->repo);
+}
+
static struct repository *get_submodule_repo_for(struct repository *r,
const struct submodule *sub)
{
@@ -1286,39 +1362,29 @@ static struct repository *get_submodule_repo_for(struct repository *r,
static int get_next_submodule(struct child_process *cp,
struct strbuf *err, void *data, void **task_cb)
{
- int ret = 0;
struct submodule_parallel_fetch *spf = data;
for (; spf->count < spf->r->index->cache_nr; spf->count++) {
- struct strbuf submodule_prefix = STRBUF_INIT;
const struct cache_entry *ce = spf->r->index->cache[spf->count];
const char *default_argv;
- const struct submodule *submodule;
- struct repository *repo;
- struct submodule default_submodule = SUBMODULE_INIT;
+ struct fetch_task *task;
if (!S_ISGITLINK(ce->ce_mode))
continue;
- submodule = submodule_from_path(spf->r, &null_oid, ce->name);
- if (!submodule) {
- const char *name = default_name_or_path(ce->name);
- if (name) {
- default_submodule.path = name;
- default_submodule.name = name;
- submodule = &default_submodule;
- }
- }
+ task = fetch_task_create(spf->r, ce->name);
+ if (!task)
+ continue;
- switch (get_fetch_recurse_config(submodule, spf))
+ switch (get_fetch_recurse_config(task->sub, spf))
{
default:
case RECURSE_SUBMODULES_DEFAULT:
case RECURSE_SUBMODULES_ON_DEMAND:
- if (!submodule ||
+ if (!task->sub ||
!string_list_lookup(
&spf->changed_submodule_names,
- submodule->name))
+ task->sub->name))
continue;
default_argv = "on-demand";
break;
@@ -1329,11 +1395,11 @@ static int get_next_submodule(struct child_process *cp,
continue;
}
- strbuf_addf(&submodule_prefix, "%s%s/", spf->prefix, ce->name);
- repo = get_submodule_repo_for(spf->r, submodule);
- if (repo) {
+ task->repo = get_submodule_repo_for(spf->r, task->sub);
+ if (task->repo) {
+ struct strbuf submodule_prefix = STRBUF_INIT;
child_process_init(cp);
- cp->dir = xstrdup(repo->gitdir);
+ cp->dir = task->repo->gitdir;
prepare_submodule_repo_env_in_gitdir(&cp->env_array);
cp->git_cmd = 1;
if (!spf->quiet)
@@ -1343,12 +1409,22 @@ static int get_next_submodule(struct child_process *cp,
argv_array_pushv(&cp->args, spf->args.argv);
argv_array_push(&cp->args, default_argv);
argv_array_push(&cp->args, "--submodule-prefix");
+
+ strbuf_addf(&submodule_prefix, "%s%s/",
+ spf->prefix,
+ task->sub->path);
argv_array_push(&cp->args, submodule_prefix.buf);
- repo_clear(repo);
- free(repo);
- ret = 1;
+ spf->count++;
+ *task_cb = task;
+
+ strbuf_release(&submodule_prefix);
+ return 1;
} else {
+
+ fetch_task_release(task);
+ free(task);
+
/*
* An empty directory is normal,
* the submodule is not initialized
@@ -1361,12 +1437,38 @@ static int get_next_submodule(struct child_process *cp,
ce->name);
}
}
+ }
+
+ if (spf->oid_fetch_tasks_nr) {
+ struct fetch_task *task =
+ spf->oid_fetch_tasks[spf->oid_fetch_tasks_nr - 1];
+ struct strbuf submodule_prefix = STRBUF_INIT;
+ spf->oid_fetch_tasks_nr--;
+
+ strbuf_addf(&submodule_prefix, "%s%s/",
+ spf->prefix, task->sub->path);
+
+ child_process_init(cp);
+ prepare_submodule_repo_env_in_gitdir(&cp->env_array);
+ cp->git_cmd = 1;
+ cp->dir = task->repo->gitdir;
+
+ argv_array_init(&cp->args);
+ argv_array_pushv(&cp->args, spf->args.argv);
+ argv_array_push(&cp->args, "on-demand");
+ argv_array_push(&cp->args, "--submodule-prefix");
+ argv_array_push(&cp->args, submodule_prefix.buf);
+
+ /* NEEDSWORK: have get_default_remote from submodule--helper */
+ argv_array_push(&cp->args, "origin");
+ oid_array_for_each_unique(task->commits,
+ append_oid_to_argv, &cp->args);
+
+ *task_cb = task;
strbuf_release(&submodule_prefix);
- if (ret) {
- spf->count++;
- return 1;
- }
+ return 1;
}
+
return 0;
}
@@ -1374,20 +1476,66 @@ static int fetch_start_failure(struct strbuf *err,
void *cb, void *task_cb)
{
struct submodule_parallel_fetch *spf = cb;
+ struct fetch_task *task = task_cb;
spf->result = 1;
+ fetch_task_release(task);
return 0;
}
+static int commit_missing_in_sub(const struct object_id *oid, void *data)
+{
+ struct repository *subrepo = data;
+
+ enum object_type type = oid_object_info(subrepo, oid, NULL);
+
+ return type != OBJ_COMMIT;
+}
+
static int fetch_finish(int retvalue, struct strbuf *err,
void *cb, void *task_cb)
{
struct submodule_parallel_fetch *spf = cb;
+ struct fetch_task *task = task_cb;
+
+ struct string_list_item *it;
+ struct oid_array *commits;
if (retvalue)
spf->result = 1;
+ if (!task || !task->sub)
+ BUG("callback cookie bogus");
+
+ /* Is this the second time we process this submodule? */
+ if (task->commits)
+ goto out;
+
+ it = string_list_lookup(&spf->changed_submodule_names, task->sub->name);
+ if (!it)
+ /* Could be an unchanged submodule, not contained in the list */
+ goto out;
+
+ commits = it->util;
+ oid_array_filter(commits,
+ commit_missing_in_sub,
+ task->repo);
+
+ /* Are there commits we want, but do not exist? */
+ if (commits->nr) {
+ task->commits = commits;
+ ALLOC_GROW(spf->oid_fetch_tasks,
+ spf->oid_fetch_tasks_nr + 1,
+ spf->oid_fetch_tasks_alloc);
+ spf->oid_fetch_tasks[spf->oid_fetch_tasks_nr] = task;
+ spf->oid_fetch_tasks_nr++;
+ return 0;
+ }
+
+out:
+ fetch_task_release(task);
+
return 0;
}
@@ -600,4 +600,121 @@ test_expect_success "fetch new commits when submodule got renamed" '
test_cmp expect actual
'
+test_expect_success "fetch new submodule commits on-demand outside standard refspec" '
+ # add a second submodule and ensure it is around in downstream first
+ git clone submodule sub1 &&
+ git submodule add ./sub1 &&
+ git commit -m "adding a second submodule" &&
+ git -C downstream pull &&
+ git -C downstream submodule update --init --recursive &&
+
+ git checkout --detach &&
+
+ C=$(git -C submodule commit-tree -m "new change outside refs/heads" HEAD^{tree}) &&
+ git -C submodule update-ref refs/changes/1 $C &&
+ git update-index --cacheinfo 160000 $C submodule &&
+ test_tick &&
+
+ D=$(git -C sub1 commit-tree -m "new change outside refs/heads" HEAD^{tree}) &&
+ git -C sub1 update-ref refs/changes/2 $D &&
+ git update-index --cacheinfo 160000 $D sub1 &&
+
+ git commit -m "updated submodules outside of refs/heads" &&
+ E=$(git rev-parse HEAD) &&
+ git update-ref refs/changes/3 $E &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules origin refs/changes/3:refs/heads/my_branch &&
+ git -C submodule cat-file -t $C &&
+ git -C sub1 cat-file -t $D &&
+ git checkout --recurse-submodules FETCH_HEAD
+ )
+'
+
+test_expect_success 'fetch new submodule commit on-demand in FETCH_HEAD' '
+ # depends on the previous test for setup
+
+ C=$(git -C submodule commit-tree -m "another change outside refs/heads" HEAD^{tree}) &&
+ git -C submodule update-ref refs/changes/4 $C &&
+ git update-index --cacheinfo 160000 $C submodule &&
+ test_tick &&
+
+ D=$(git -C sub1 commit-tree -m "another change outside refs/heads" HEAD^{tree}) &&
+ git -C sub1 update-ref refs/changes/5 $D &&
+ git update-index --cacheinfo 160000 $D sub1 &&
+
+ git commit -m "updated submodules outside of refs/heads" &&
+ E=$(git rev-parse HEAD) &&
+ git update-ref refs/changes/6 $E &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules origin refs/changes/6 &&
+ git -C submodule cat-file -t $C &&
+ git -C sub1 cat-file -t $D &&
+ git checkout --recurse-submodules FETCH_HEAD
+ )
+'
+
+test_expect_success 'fetch new submodule commits on-demand without .gitmodules entry' '
+ # depends on the previous test for setup
+
+ git config -f .gitmodules --remove-section submodule.sub1 &&
+ git add .gitmodules &&
+ git commit -m "delete gitmodules file" &&
+ git checkout -B master &&
+ git -C downstream fetch &&
+ git -C downstream checkout origin/master &&
+
+ C=$(git -C submodule commit-tree -m "yet another change outside refs/heads" HEAD^{tree}) &&
+ git -C submodule update-ref refs/changes/7 $C &&
+ git update-index --cacheinfo 160000 $C submodule &&
+ test_tick &&
+
+ D=$(git -C sub1 commit-tree -m "yet another change outside refs/heads" HEAD^{tree}) &&
+ git -C sub1 update-ref refs/changes/8 $D &&
+ git update-index --cacheinfo 160000 $D sub1 &&
+
+ git commit -m "updated submodules outside of refs/heads" &&
+ E=$(git rev-parse HEAD) &&
+ git update-ref refs/changes/9 $E &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules origin refs/changes/9 &&
+ git -C submodule cat-file -t $C &&
+ git -C sub1 cat-file -t $D &&
+ git checkout --recurse-submodules FETCH_HEAD
+ )
+'
+
+test_expect_success 'fetch new submodule commit intermittently referenced by superproject' '
+ # depends on the previous test for setup
+
+ D=$(git -C sub1 commit-tree -m "change 10 outside refs/heads" HEAD^{tree}) &&
+ E=$(git -C sub1 commit-tree -m "change 11 outside refs/heads" HEAD^{tree}) &&
+ F=$(git -C sub1 commit-tree -m "change 12 outside refs/heads" HEAD^{tree}) &&
+
+ git -C sub1 update-ref refs/changes/10 $D &&
+ git update-index --cacheinfo 160000 $D sub1 &&
+ git commit -m "updated submodules outside of refs/heads" &&
+
+ git -C sub1 update-ref refs/changes/11 $E &&
+ git update-index --cacheinfo 160000 $E sub1 &&
+ git commit -m "updated submodules outside of refs/heads" &&
+
+ git -C sub1 update-ref refs/changes/12 $F &&
+ git update-index --cacheinfo 160000 $F sub1 &&
+ git commit -m "updated submodules outside of refs/heads" &&
+
+ G=$(git rev-parse HEAD) &&
+ git update-ref refs/changes/13 $G &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules origin refs/changes/13 &&
+
+ git -C sub1 cat-file -t $D &&
+ git -C sub1 cat-file -t $E &&
+ git -C sub1 cat-file -t $F
+ )
+'
+
test_done