static int config_fetch_recurse_submodules = RECURSE_SUBMODULES_ON_DEMAND;
static int config_update_recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
static int parallel_jobs = 1;
-static struct string_list changed_submodule_paths = STRING_LIST_INIT_NODUP;
+static struct string_list changed_submodule_paths = STRING_LIST_INIT_DUP;
static int initialized_fetch_ref_tips;
static struct oid_array ref_tips_before_fetch;
static struct oid_array ref_tips_after_fetch;
return submodule_from_path(null_sha1, ce->name);
}
+static struct oid_array *submodule_commits(struct string_list *submodules,
+ const char *path)
+{
+ struct string_list_item *item;
+
+ item = string_list_insert(submodules, path);
+ if (item->util)
+ return (struct oid_array *) item->util;
+
+ /* NEEDSWORK: should we have oid_array_init()? */
+ item->util = xcalloc(1, sizeof(struct oid_array));
+ return (struct oid_array *) item->util;
+}
+
+static void collect_changed_submodules_cb(struct diff_queue_struct *q,
+ struct diff_options *options,
+ void *data)
+{
+ int i;
+ struct string_list *changed = data;
+
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ struct oid_array *commits;
+ if (!S_ISGITLINK(p->two->mode))
+ continue;
+
+ if (S_ISGITLINK(p->one->mode)) {
+ /*
+ * NEEDSWORK: We should honor the name configured in
+ * the .gitmodules file of the commit we are examining
+ * here to be able to correctly follow submodules
+ * being moved around.
+ */
+ commits = submodule_commits(changed, p->two->path);
+ oid_array_append(commits, &p->two->oid);
+ } else {
+ /* Submodule is new or was moved here */
+ /*
+ * NEEDSWORK: When the .git directories of submodules
+ * live inside the superprojects .git directory some
+ * day we should fetch new submodules directly into
+ * that location too when config or options request
+ * that so they can be checked out from there.
+ */
+ continue;
+ }
+ }
+}
+
+/*
+ * Collect the paths of submodules in 'changed' which have changed based on
+ * the revisions as specified in 'argv'. Each entry in 'changed' will also
+ * have a corresponding 'struct oid_array' (in the 'util' field) which lists
+ * what the submodule pointers were updated to during the change.
+ */
+static void collect_changed_submodules(struct string_list *changed,
+ struct argv_array *argv)
+{
+ struct rev_info rev;
+ const struct commit *commit;
+
+ init_revisions(&rev, NULL);
+ setup_revisions(argv->argc, argv->argv, &rev, NULL);
+ if (prepare_revision_walk(&rev))
+ die("revision walk setup failed");
+
+ while ((commit = get_revision(&rev))) {
+ struct rev_info diff_rev;
+
+ init_revisions(&diff_rev, NULL);
+ diff_rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
+ diff_rev.diffopt.format_callback = collect_changed_submodules_cb;
+ diff_rev.diffopt.format_callback_data = changed;
+ diff_tree_combined_merge(commit, 1, &diff_rev);
+ }
+
+ reset_revision_walk();
+}
+
+static void free_submodules_oids(struct string_list *submodules)
+{
+ struct string_list_item *item;
+ for_each_string_list_item(item, submodules)
+ oid_array_clear((struct oid_array *) item->util);
+ string_list_clear(submodules, 1);
+}
+
static int has_remote(const char *refname, const struct object_id *oid,
int flags, void *cb_data)
{
{
int has_commit = 1;
+ /*
+ * Perform a cheap, but incorrect check for the existance of 'commits'.
+ * This is done by adding the submodule's object store to the in-core
+ * object store, and then querying for each commit's existance. If we
+ * do not have the commit object anywhere, there is no chance we have
+ * it in the object store of the correct submodule and have it
+ * reachable from a ref, so we can fail early without spawning rev-list
+ * which is expensive.
+ */
if (add_submodule_odb(path))
return 0;
oid_array_for_each_unique(commits, check_has_commit, &has_commit);
+
+ if (has_commit) {
+ /*
+ * Even if the submodule is checked out and the commit is
+ * present, make sure it exists in the submodule's object store
+ * and that it is reachable from a ref.
+ */
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf out = STRBUF_INIT;
+
+ argv_array_pushl(&cp.args, "rev-list", "-n", "1", NULL);
+ oid_array_for_each_unique(commits, append_oid_to_argv, &cp.args);
+ argv_array_pushl(&cp.args, "--not", "--all", NULL);
+
+ prepare_submodule_repo_env(&cp.env_array);
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ cp.dir = path;
+
+ if (capture_command(&cp, &out, GIT_MAX_HEXSZ + 1) || out.len)
+ has_commit = 0;
+
+ strbuf_release(&out);
+ }
+
return has_commit;
}
return 0;
}
-static struct oid_array *submodule_commits(struct string_list *submodules,
- const char *path)
-{
- struct string_list_item *item;
-
- item = string_list_insert(submodules, path);
- if (item->util)
- return (struct oid_array *) item->util;
-
- /* NEEDSWORK: should we have oid_array_init()? */
- item->util = xcalloc(1, sizeof(struct oid_array));
- return (struct oid_array *) item->util;
-}
-
-static void collect_submodules_from_diff(struct diff_queue_struct *q,
- struct diff_options *options,
- void *data)
-{
- int i;
- struct string_list *submodules = data;
-
- for (i = 0; i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- struct oid_array *commits;
- if (!S_ISGITLINK(p->two->mode))
- continue;
- commits = submodule_commits(submodules, p->two->path);
- oid_array_append(commits, &p->two->oid);
- }
-}
-
-static void find_unpushed_submodule_commits(struct commit *commit,
- struct string_list *needs_pushing)
-{
- struct rev_info rev;
-
- init_revisions(&rev, NULL);
- rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
- rev.diffopt.format_callback = collect_submodules_from_diff;
- rev.diffopt.format_callback_data = needs_pushing;
- diff_tree_combined_merge(commit, 1, &rev);
-}
-
-static void free_submodules_sha1s(struct string_list *submodules)
-{
- struct string_list_item *item;
- for_each_string_list_item(item, submodules)
- oid_array_clear((struct oid_array *) item->util);
- string_list_clear(submodules, 1);
-}
-
int find_unpushed_submodules(struct oid_array *commits,
const char *remotes_name, struct string_list *needs_pushing)
{
- struct rev_info rev;
- struct commit *commit;
struct string_list submodules = STRING_LIST_INIT_DUP;
struct string_list_item *submodule;
struct argv_array argv = ARGV_ARRAY_INIT;
- init_revisions(&rev, NULL);
-
/* argv.argv[0] will be ignored by setup_revisions */
argv_array_push(&argv, "find_unpushed_submodules");
oid_array_for_each_unique(commits, append_oid_to_argv, &argv);
argv_array_push(&argv, "--not");
argv_array_pushf(&argv, "--remotes=%s", remotes_name);
- setup_revisions(argv.argc, argv.argv, &rev, NULL);
- if (prepare_revision_walk(&rev))
- die("revision walk setup failed");
-
- while ((commit = get_revision(&rev)) != NULL)
- find_unpushed_submodule_commits(commit, &submodules);
-
- reset_revision_walk();
- argv_array_clear(&argv);
+ collect_changed_submodules(&submodules, &argv);
for_each_string_list_item(submodule, &submodules) {
- struct oid_array *commits = (struct oid_array *) submodule->util;
+ struct oid_array *commits = submodule->util;
+ const char *path = submodule->string;
- if (submodule_needs_pushing(submodule->string, commits))
- string_list_insert(needs_pushing, submodule->string);
+ if (submodule_needs_pushing(path, commits))
+ string_list_insert(needs_pushing, path);
}
- free_submodules_sha1s(&submodules);
+
+ free_submodules_oids(&submodules);
+ argv_array_clear(&argv);
return needs_pushing->nr;
}
return ret;
}
-static int is_submodule_commit_present(const char *path, unsigned char sha1[20])
-{
- int is_present = 0;
- if (!add_submodule_odb(path) && lookup_commit_reference(sha1)) {
- /* Even if the submodule is checked out and the commit is
- * present, make sure it is reachable from a ref. */
- struct child_process cp = CHILD_PROCESS_INIT;
- const char *argv[] = {"rev-list", "-n", "1", NULL, "--not", "--all", NULL};
- struct strbuf buf = STRBUF_INIT;
-
- argv[3] = sha1_to_hex(sha1);
- cp.argv = argv;
- prepare_submodule_repo_env(&cp.env_array);
- cp.git_cmd = 1;
- cp.no_stdin = 1;
- cp.dir = path;
- if (!capture_command(&cp, &buf, 1024) && !buf.len)
- is_present = 1;
-
- strbuf_release(&buf);
- }
- return is_present;
-}
-
-static void submodule_collect_changed_cb(struct diff_queue_struct *q,
- struct diff_options *options,
- void *data)
+static int append_oid_to_array(const char *ref, const struct object_id *oid,
+ int flags, void *data)
{
- int i;
- for (i = 0; i < q->nr; i++) {
- struct diff_filepair *p = q->queue[i];
- if (!S_ISGITLINK(p->two->mode))
- continue;
-
- if (S_ISGITLINK(p->one->mode)) {
- /* NEEDSWORK: We should honor the name configured in
- * the .gitmodules file of the commit we are examining
- * here to be able to correctly follow submodules
- * being moved around. */
- struct string_list_item *path;
- path = unsorted_string_list_lookup(&changed_submodule_paths, p->two->path);
- if (!path && !is_submodule_commit_present(p->two->path, p->two->oid.hash))
- string_list_append(&changed_submodule_paths, xstrdup(p->two->path));
- } else {
- /* Submodule is new or was moved here */
- /* NEEDSWORK: When the .git directories of submodules
- * live inside the superprojects .git directory some
- * day we should fetch new submodules directly into
- * that location too when config or options request
- * that so they can be checked out from there. */
- continue;
- }
- }
-}
-
-static int add_sha1_to_array(const char *ref, const struct object_id *oid,
- int flags, void *data)
-{
- oid_array_append(data, oid);
+ struct oid_array *array = data;
+ oid_array_append(array, oid);
return 0;
}
void check_for_new_submodule_commits(struct object_id *oid)
{
if (!initialized_fetch_ref_tips) {
- for_each_ref(add_sha1_to_array, &ref_tips_before_fetch);
+ for_each_ref(append_oid_to_array, &ref_tips_before_fetch);
initialized_fetch_ref_tips = 1;
}
oid_array_append(&ref_tips_after_fetch, oid);
}
-static int add_oid_to_argv(const struct object_id *oid, void *data)
-{
- argv_array_push(data, oid_to_hex(oid));
- return 0;
-}
-
static void calculate_changed_submodule_paths(void)
{
- struct rev_info rev;
- struct commit *commit;
struct argv_array argv = ARGV_ARRAY_INIT;
+ struct string_list changed_submodules = STRING_LIST_INIT_DUP;
+ const struct string_list_item *item;
/* No need to check if there are no submodules configured */
if (!submodule_from_path(NULL, NULL))
return;
- init_revisions(&rev, NULL);
argv_array_push(&argv, "--"); /* argv[0] program name */
oid_array_for_each_unique(&ref_tips_after_fetch,
- add_oid_to_argv, &argv);
+ append_oid_to_argv, &argv);
argv_array_push(&argv, "--not");
oid_array_for_each_unique(&ref_tips_before_fetch,
- add_oid_to_argv, &argv);
- setup_revisions(argv.argc, argv.argv, &rev, NULL);
- if (prepare_revision_walk(&rev))
- die("revision walk setup failed");
+ append_oid_to_argv, &argv);
/*
* Collect all submodules (whether checked out or not) for which new
* commits have been recorded upstream in "changed_submodule_paths".
*/
- while ((commit = get_revision(&rev))) {
- struct commit_list *parent = commit->parents;
- while (parent) {
- struct diff_options diff_opts;
- diff_setup(&diff_opts);
- DIFF_OPT_SET(&diff_opts, RECURSIVE);
- diff_opts.output_format |= DIFF_FORMAT_CALLBACK;
- diff_opts.format_callback = submodule_collect_changed_cb;
- diff_setup_done(&diff_opts);
- diff_tree_sha1(parent->item->object.oid.hash, commit->object.oid.hash, "", &diff_opts);
- diffcore_std(&diff_opts);
- diff_flush(&diff_opts);
- parent = parent->next;
- }
+ collect_changed_submodules(&changed_submodules, &argv);
+
+ for_each_string_list_item(item, &changed_submodules) {
+ struct oid_array *commits = item->util;
+ const char *path = item->string;
+
+ if (!submodule_has_commits(path, commits))
+ string_list_append(&changed_submodule_paths, path);
}
+ free_submodules_oids(&changed_submodules);
argv_array_clear(&argv);
oid_array_clear(&ref_tips_before_fetch);
oid_array_clear(&ref_tips_after_fetch);
int ret = 0;
struct child_process cp = CHILD_PROCESS_INIT;
const struct submodule *sub;
+ int *error_code_ptr, error_code;
+
+ if (!is_submodule_initialized(path))
+ return 0;
+
+ if (flags & SUBMODULE_MOVE_HEAD_FORCE)
+ /*
+ * Pass non NULL pointer to is_submodule_populated_gently
+ * to prevent die()-ing. We'll use connect_work_tree_and_git_dir
+ * to fixup the submodule in the force case later.
+ */
+ error_code_ptr = &error_code;
+ else
+ error_code_ptr = NULL;
+
+ if (old && !is_submodule_populated_gently(path, error_code_ptr))
+ return 0;
sub = submodule_from_path(null_sha1, path);
absorb_git_dir_into_superproject("", path,
ABSORB_GITDIR_RECURSE_SUBMODULES);
} else {
- struct strbuf sb = STRBUF_INIT;
- strbuf_addf(&sb, "%s/modules/%s",
+ char *gitdir = xstrfmt("%s/modules/%s",
get_git_common_dir(), sub->name);
- connect_work_tree_and_git_dir(path, sb.buf);
- strbuf_release(&sb);
+ connect_work_tree_and_git_dir(path, gitdir);
+ free(gitdir);
/* make sure the index is clean as well */
submodule_reset_index(path);
}
+
+ if (old && (flags & SUBMODULE_MOVE_HEAD_FORCE)) {
+ char *gitdir = xstrfmt("%s/modules/%s",
+ get_git_common_dir(), sub->name);
+ connect_work_tree_and_git_dir(path, gitdir);
+ free(gitdir);
+ }
}
prepare_submodule_repo_env(&cp.env_array);