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-rw-r--r--builtin/clone.c113
1 files changed, 66 insertions, 47 deletions
diff --git a/builtin/clone.c b/builtin/clone.c
index f044a8c27f..fb75f7ee64 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -50,7 +50,8 @@ static int option_verbosity;
static int option_progress = -1;
static enum transport_family family;
static struct string_list option_config = STRING_LIST_INIT_NODUP;
-static struct string_list option_reference = STRING_LIST_INIT_NODUP;
+static struct string_list option_required_reference = STRING_LIST_INIT_NODUP;
+static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP;
static int option_dissociate;
static int max_jobs = -1;
@@ -79,8 +80,10 @@ static struct option builtin_clone_options[] = {
N_("number of submodules cloned in parallel")),
OPT_STRING(0, "template", &option_template, N_("template-directory"),
N_("directory from which templates will be used")),
- OPT_STRING_LIST(0, "reference", &option_reference, N_("repo"),
+ OPT_STRING_LIST(0, "reference", &option_required_reference, N_("repo"),
N_("reference repository")),
+ OPT_STRING_LIST(0, "reference-if-able", &option_optional_reference,
+ N_("repo"), N_("reference repository")),
OPT_BOOL(0, "dissociate", &option_dissociate,
N_("use --reference only while cloning")),
OPT_STRING('o', "origin", &option_origin, N_("name"),
@@ -282,50 +285,37 @@ static void strip_trailing_slashes(char *dir)
static int add_one_reference(struct string_list_item *item, void *cb_data)
{
- char *ref_git;
- const char *repo;
- struct strbuf alternate = STRBUF_INIT;
-
- /* Beware: read_gitfile(), real_path() and mkpath() return static buffer */
- ref_git = xstrdup(real_path(item->string));
-
- repo = read_gitfile(ref_git);
- if (!repo)
- repo = read_gitfile(mkpath("%s/.git", ref_git));
- if (repo) {
- free(ref_git);
- ref_git = xstrdup(repo);
- }
+ struct strbuf err = STRBUF_INIT;
+ int *required = cb_data;
+ char *ref_git = compute_alternate_path(item->string, &err);
- if (!repo && is_directory(mkpath("%s/.git/objects", ref_git))) {
- char *ref_git_git = mkpathdup("%s/.git", ref_git);
- free(ref_git);
- ref_git = ref_git_git;
- } else if (!is_directory(mkpath("%s/objects", ref_git))) {
+ if (!ref_git) {
+ if (*required)
+ die("%s", err.buf);
+ else
+ fprintf(stderr,
+ _("info: Could not add alternate for '%s': %s\n"),
+ item->string, err.buf);
+ } else {
struct strbuf sb = STRBUF_INIT;
- if (get_common_dir(&sb, ref_git))
- die(_("reference repository '%s' as a linked checkout is not supported yet."),
- item->string);
- die(_("reference repository '%s' is not a local repository."),
- item->string);
+ strbuf_addf(&sb, "%s/objects", ref_git);
+ add_to_alternates_file(sb.buf);
+ strbuf_release(&sb);
}
- if (!access(mkpath("%s/shallow", ref_git), F_OK))
- die(_("reference repository '%s' is shallow"), item->string);
-
- if (!access(mkpath("%s/info/grafts", ref_git), F_OK))
- die(_("reference repository '%s' is grafted"), item->string);
-
- strbuf_addf(&alternate, "%s/objects", ref_git);
- add_to_alternates_file(alternate.buf);
- strbuf_release(&alternate);
+ strbuf_release(&err);
free(ref_git);
return 0;
}
static void setup_reference(void)
{
- for_each_string_list(&option_reference, add_one_reference, NULL);
+ int required = 1;
+ for_each_string_list(&option_required_reference,
+ add_one_reference, &required);
+ required = 0;
+ for_each_string_list(&option_optional_reference,
+ add_one_reference, &required);
}
static void copy_alternates(struct strbuf *src, struct strbuf *dst,
@@ -680,7 +670,7 @@ static void update_head(const struct ref *our, const struct ref *remote,
}
}
-static int checkout(void)
+static int checkout(int submodule_progress)
{
unsigned char sha1[20];
char *head;
@@ -744,6 +734,9 @@ static int checkout(void)
if (max_jobs != -1)
argv_array_pushf(&args, "--jobs=%d", max_jobs);
+ if (submodule_progress)
+ argv_array_push(&args, "--progress");
+
err = run_command_v_opt(args.argv, RUN_GIT_CMD);
argv_array_clear(&args);
}
@@ -851,6 +844,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
const char *src_ref_prefix = "refs/heads/";
struct remote *remote;
int err = 0, complete_refs_before_fetch = 1;
+ int submodule_progress;
struct refspec *refspec;
const char *fetch_pattern;
@@ -941,23 +935,40 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
set_git_work_tree(work_tree);
}
- junk_git_dir = git_dir;
+ junk_git_dir = real_git_dir ? real_git_dir : git_dir;
if (safe_create_leading_directories_const(git_dir) < 0)
die(_("could not create leading directories of '%s'"), git_dir);
- set_git_dir_init(git_dir, real_git_dir, 0);
- if (real_git_dir) {
- git_dir = real_git_dir;
- junk_git_dir = real_git_dir;
- }
-
if (0 <= option_verbosity) {
if (option_bare)
fprintf(stderr, _("Cloning into bare repository '%s'...\n"), dir);
else
fprintf(stderr, _("Cloning into '%s'...\n"), dir);
}
- init_db(option_template, INIT_DB_QUIET);
+
+ if (option_recursive) {
+ if (option_required_reference.nr &&
+ option_optional_reference.nr)
+ die(_("clone --recursive is not compatible with "
+ "both --reference and --reference-if-able"));
+ else if (option_required_reference.nr) {
+ string_list_append(&option_config,
+ "submodule.alternateLocation=superproject");
+ string_list_append(&option_config,
+ "submodule.alternateErrorStrategy=die");
+ } else if (option_optional_reference.nr) {
+ string_list_append(&option_config,
+ "submodule.alternateLocation=superproject");
+ string_list_append(&option_config,
+ "submodule.alternateErrorStrategy=info");
+ }
+ }
+
+ init_db(git_dir, real_git_dir, option_template, INIT_DB_QUIET);
+
+ if (real_git_dir)
+ git_dir = real_git_dir;
+
write_config(&option_config);
git_config(git_default_config, NULL);
@@ -977,7 +988,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
git_config_set(key.buf, repo);
strbuf_reset(&key);
- if (option_reference.nr)
+ if (option_required_reference.nr || option_optional_reference.nr)
setup_reference();
fetch_pattern = value.buf;
@@ -1090,6 +1101,14 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
update_head(our_head_points_at, remote_head, reflog_msg.buf);
+ /*
+ * We want to show progress for recursive submodule clones iff
+ * we did so for the main clone. But only the transport knows
+ * the final decision for this flag, so we need to rescue the value
+ * before we free the transport.
+ */
+ submodule_progress = transport->progress;
+
transport_unlock_pack(transport);
transport_disconnect(transport);
@@ -1099,7 +1118,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
}
junk_mode = JUNK_LEAVE_REPO;
- err = checkout();
+ err = checkout(submodule_progress);
strbuf_release(&reflog_msg);
strbuf_release(&branch_top);