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git/builtin/submodule--helper.c

2376 строки
64 KiB
C
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#define USE_THE_INDEX_COMPATIBILITY_MACROS
#include "builtin.h"
#include "repository.h"
#include "cache.h"
#include "config.h"
#include "parse-options.h"
#include "quote.h"
#include "pathspec.h"
#include "dir.h"
#include "submodule.h"
#include "submodule-config.h"
#include "string-list.h"
#include "run-command.h"
#include "remote.h"
#include "refs.h"
#include "refspec.h"
#include "connect.h"
#include "revision.h"
#include "diffcore.h"
#include "diff.h"
#include "object-store.h"
#include "dir.h"
#include "advice.h"
#define OPT_QUIET (1 << 0)
#define OPT_CACHED (1 << 1)
#define OPT_RECURSIVE (1 << 2)
#define OPT_FORCE (1 << 3)
typedef void (*each_submodule_fn)(const struct cache_entry *list_item,
void *cb_data);
static char *get_default_remote(void)
{
char *dest = NULL, *ret;
struct strbuf sb = STRBUF_INIT;
const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, NULL);
if (!refname)
die(_("No such ref: %s"), "HEAD");
/* detached HEAD */
if (!strcmp(refname, "HEAD"))
return xstrdup("origin");
if (!skip_prefix(refname, "refs/heads/", &refname))
die(_("Expecting a full ref name, got %s"), refname);
strbuf_addf(&sb, "branch.%s.remote", refname);
if (git_config_get_string(sb.buf, &dest))
ret = xstrdup("origin");
else
ret = dest;
strbuf_release(&sb);
return ret;
}
static int print_default_remote(int argc, const char **argv, const char *prefix)
{
char *remote;
if (argc != 1)
die(_("submodule--helper print-default-remote takes no arguments"));
remote = get_default_remote();
if (remote)
printf("%s\n", remote);
free(remote);
return 0;
}
static int starts_with_dot_slash(const char *str)
{
return str[0] == '.' && is_dir_sep(str[1]);
}
static int starts_with_dot_dot_slash(const char *str)
{
return str[0] == '.' && str[1] == '.' && is_dir_sep(str[2]);
}
/*
* Returns 1 if it was the last chop before ':'.
*/
static int chop_last_dir(char **remoteurl, int is_relative)
{
char *rfind = find_last_dir_sep(*remoteurl);
if (rfind) {
*rfind = '\0';
return 0;
}
rfind = strrchr(*remoteurl, ':');
if (rfind) {
*rfind = '\0';
return 1;
}
if (is_relative || !strcmp(".", *remoteurl))
die(_("cannot strip one component off url '%s'"),
*remoteurl);
free(*remoteurl);
*remoteurl = xstrdup(".");
return 0;
}
/*
* The `url` argument is the URL that navigates to the submodule origin
* repo. When relative, this URL is relative to the superproject origin
* URL repo. The `up_path` argument, if specified, is the relative
* path that navigates from the submodule working tree to the superproject
* working tree. Returns the origin URL of the submodule.
*
* Return either an absolute URL or filesystem path (if the superproject
* origin URL is an absolute URL or filesystem path, respectively) or a
* relative file system path (if the superproject origin URL is a relative
* file system path).
*
* When the output is a relative file system path, the path is either
* relative to the submodule working tree, if up_path is specified, or to
* the superproject working tree otherwise.
*
* NEEDSWORK: This works incorrectly on the domain and protocol part.
* remote_url url outcome expectation
* http://a.com/b ../c http://a.com/c as is
* http://a.com/b/ ../c http://a.com/c same as previous line, but
* ignore trailing slash in url
* http://a.com/b ../../c http://c error out
* http://a.com/b ../../../c http:/c error out
* http://a.com/b ../../../../c http:c error out
* http://a.com/b ../../../../../c .:c error out
* NEEDSWORK: Given how chop_last_dir() works, this function is broken
* when a local part has a colon in its path component, too.
*/
static char *relative_url(const char *remote_url,
const char *url,
const char *up_path)
{
int is_relative = 0;
int colonsep = 0;
char *out;
char *remoteurl = xstrdup(remote_url);
struct strbuf sb = STRBUF_INIT;
size_t len = strlen(remoteurl);
if (is_dir_sep(remoteurl[len-1]))
remoteurl[len-1] = '\0';
if (!url_is_local_not_ssh(remoteurl) || is_absolute_path(remoteurl))
is_relative = 0;
else {
is_relative = 1;
/*
* Prepend a './' to ensure all relative
* remoteurls start with './' or '../'
*/
if (!starts_with_dot_slash(remoteurl) &&
!starts_with_dot_dot_slash(remoteurl)) {
strbuf_reset(&sb);
strbuf_addf(&sb, "./%s", remoteurl);
free(remoteurl);
remoteurl = strbuf_detach(&sb, NULL);
}
}
/*
* When the url starts with '../', remove that and the
* last directory in remoteurl.
*/
while (url) {
if (starts_with_dot_dot_slash(url)) {
url += 3;
colonsep |= chop_last_dir(&remoteurl, is_relative);
} else if (starts_with_dot_slash(url))
url += 2;
else
break;
}
strbuf_reset(&sb);
strbuf_addf(&sb, "%s%s%s", remoteurl, colonsep ? ":" : "/", url);
if (ends_with(url, "/"))
strbuf_setlen(&sb, sb.len - 1);
free(remoteurl);
if (starts_with_dot_slash(sb.buf))
out = xstrdup(sb.buf + 2);
else
out = xstrdup(sb.buf);
strbuf_reset(&sb);
if (!up_path || !is_relative)
return out;
strbuf_addf(&sb, "%s%s", up_path, out);
free(out);
return strbuf_detach(&sb, NULL);
}
static int resolve_relative_url(int argc, const char **argv, const char *prefix)
{
char *remoteurl = NULL;
char *remote = get_default_remote();
const char *up_path = NULL;
char *res;
const char *url;
struct strbuf sb = STRBUF_INIT;
if (argc != 2 && argc != 3)
die("resolve-relative-url only accepts one or two arguments");
url = argv[1];
strbuf_addf(&sb, "remote.%s.url", remote);
free(remote);
if (git_config_get_string(sb.buf, &remoteurl))
/* the repository is its own authoritative upstream */
remoteurl = xgetcwd();
if (argc == 3)
up_path = argv[2];
res = relative_url(remoteurl, url, up_path);
puts(res);
free(res);
free(remoteurl);
return 0;
}
static int resolve_relative_url_test(int argc, const char **argv, const char *prefix)
{
char *remoteurl, *res;
const char *up_path, *url;
if (argc != 4)
die("resolve-relative-url-test only accepts three arguments: <up_path> <remoteurl> <url>");
up_path = argv[1];
remoteurl = xstrdup(argv[2]);
url = argv[3];
if (!strcmp(up_path, "(null)"))
up_path = NULL;
res = relative_url(remoteurl, url, up_path);
puts(res);
free(res);
free(remoteurl);
return 0;
}
/* the result should be freed by the caller. */
static char *get_submodule_displaypath(const char *path, const char *prefix)
{
const char *super_prefix = get_super_prefix();
if (prefix && super_prefix) {
BUG("cannot have prefix '%s' and superprefix '%s'",
prefix, super_prefix);
} else if (prefix) {
struct strbuf sb = STRBUF_INIT;
char *displaypath = xstrdup(relative_path(path, prefix, &sb));
strbuf_release(&sb);
return displaypath;
} else if (super_prefix) {
return xstrfmt("%s%s", super_prefix, path);
} else {
return xstrdup(path);
}
}
static char *compute_rev_name(const char *sub_path, const char* object_id)
{
struct strbuf sb = STRBUF_INIT;
const char ***d;
static const char *describe_bare[] = { NULL };
static const char *describe_tags[] = { "--tags", NULL };
static const char *describe_contains[] = { "--contains", NULL };
static const char *describe_all_always[] = { "--all", "--always", NULL };
static const char **describe_argv[] = { describe_bare, describe_tags,
describe_contains,
describe_all_always, NULL };
for (d = describe_argv; *d; d++) {
struct child_process cp = CHILD_PROCESS_INIT;
prepare_submodule_repo_env(&cp.env_array);
cp.dir = sub_path;
cp.git_cmd = 1;
cp.no_stderr = 1;
argv_array_push(&cp.args, "describe");
argv_array_pushv(&cp.args, *d);
argv_array_push(&cp.args, object_id);
if (!capture_command(&cp, &sb, 0)) {
strbuf_strip_suffix(&sb, "\n");
return strbuf_detach(&sb, NULL);
}
}
strbuf_release(&sb);
return NULL;
}
struct module_list {
const struct cache_entry **entries;
int alloc, nr;
};
#define MODULE_LIST_INIT { NULL, 0, 0 }
static int module_list_compute(int argc, const char **argv,
const char *prefix,
struct pathspec *pathspec,
struct module_list *list)
{
int i, result = 0;
char *ps_matched = NULL;
parse_pathspec(pathspec, 0,
PATHSPEC_PREFER_FULL,
prefix, argv);
if (pathspec->nr)
ps_matched = xcalloc(pathspec->nr, 1);
if (read_cache() < 0)
die(_("index file corrupt"));
for (i = 0; i < active_nr; i++) {
const struct cache_entry *ce = active_cache[i];
if (!match_pathspec(&the_index, pathspec, ce->name, ce_namelen(ce),
0, ps_matched, 1) ||
!S_ISGITLINK(ce->ce_mode))
continue;
ALLOC_GROW(list->entries, list->nr + 1, list->alloc);
list->entries[list->nr++] = ce;
while (i + 1 < active_nr &&
!strcmp(ce->name, active_cache[i + 1]->name))
/*
* Skip entries with the same name in different stages
* to make sure an entry is returned only once.
*/
i++;
}
if (ps_matched && report_path_error(ps_matched, pathspec))
result = -1;
free(ps_matched);
return result;
}
static void module_list_active(struct module_list *list)
{
int i;
struct module_list active_modules = MODULE_LIST_INIT;
for (i = 0; i < list->nr; i++) {
const struct cache_entry *ce = list->entries[i];
if (!is_submodule_active(the_repository, ce->name))
continue;
ALLOC_GROW(active_modules.entries,
active_modules.nr + 1,
active_modules.alloc);
active_modules.entries[active_modules.nr++] = ce;
}
free(list->entries);
*list = active_modules;
}
static char *get_up_path(const char *path)
{
int i;
struct strbuf sb = STRBUF_INIT;
for (i = count_slashes(path); i; i--)
strbuf_addstr(&sb, "../");
/*
* Check if 'path' ends with slash or not
* for having the same output for dir/sub_dir
* and dir/sub_dir/
*/
if (!is_dir_sep(path[strlen(path) - 1]))
strbuf_addstr(&sb, "../");
return strbuf_detach(&sb, NULL);
}
static int module_list(int argc, const char **argv, const char *prefix)
{
int i;
struct pathspec pathspec;
struct module_list list = MODULE_LIST_INIT;
struct option module_list_options[] = {
OPT_STRING(0, "prefix", &prefix,
N_("path"),
N_("alternative anchor for relative paths")),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper list [--prefix=<path>] [<path>...]"),
NULL
};
argc = parse_options(argc, argv, prefix, module_list_options,
git_submodule_helper_usage, 0);
if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
return 1;
for (i = 0; i < list.nr; i++) {
const struct cache_entry *ce = list.entries[i];
if (ce_stage(ce))
printf("%06o %s U\t", ce->ce_mode, oid_to_hex(&null_oid));
else
printf("%06o %s %d\t", ce->ce_mode,
oid_to_hex(&ce->oid), ce_stage(ce));
fprintf(stdout, "%s\n", ce->name);
}
return 0;
}
static void for_each_listed_submodule(const struct module_list *list,
each_submodule_fn fn, void *cb_data)
{
int i;
for (i = 0; i < list->nr; i++)
fn(list->entries[i], cb_data);
}
struct foreach_cb {
int argc;
const char **argv;
const char *prefix;
int quiet;
int recursive;
};
#define FOREACH_CB_INIT { 0 }
static void runcommand_in_submodule_cb(const struct cache_entry *list_item,
void *cb_data)
{
struct foreach_cb *info = cb_data;
const char *path = list_item->name;
const struct object_id *ce_oid = &list_item->oid;
const struct submodule *sub;
struct child_process cp = CHILD_PROCESS_INIT;
char *displaypath;
displaypath = get_submodule_displaypath(path, info->prefix);
sub = submodule_from_path(the_repository, &null_oid, path);
if (!sub)
die(_("No url found for submodule path '%s' in .gitmodules"),
displaypath);
if (!is_submodule_populated_gently(path, NULL))
goto cleanup;
prepare_submodule_repo_env(&cp.env_array);
/*
* For the purpose of executing <command> in the submodule,
* separate shell is used for the purpose of running the
* child process.
*/
cp.use_shell = 1;
cp.dir = path;
/*
* NEEDSWORK: the command currently has access to the variables $name,
* $sm_path, $displaypath, $sha1 and $toplevel only when the command
* contains a single argument. This is done for maintaining a faithful
* translation from shell script.
*/
if (info->argc == 1) {
char *toplevel = xgetcwd();
struct strbuf sb = STRBUF_INIT;
argv_array_pushf(&cp.env_array, "name=%s", sub->name);
argv_array_pushf(&cp.env_array, "sm_path=%s", path);
argv_array_pushf(&cp.env_array, "displaypath=%s", displaypath);
argv_array_pushf(&cp.env_array, "sha1=%s",
oid_to_hex(ce_oid));
argv_array_pushf(&cp.env_array, "toplevel=%s", toplevel);
/*
* Since the path variable was accessible from the script
* before porting, it is also made available after porting.
* The environment variable "PATH" has a very special purpose
* on windows. And since environment variables are
* case-insensitive in windows, it interferes with the
* existing PATH variable. Hence, to avoid that, we expose
* path via the args argv_array and not via env_array.
*/
sq_quote_buf(&sb, path);
argv_array_pushf(&cp.args, "path=%s; %s",
sb.buf, info->argv[0]);
strbuf_release(&sb);
free(toplevel);
} else {
argv_array_pushv(&cp.args, info->argv);
}
if (!info->quiet)
printf(_("Entering '%s'\n"), displaypath);
if (info->argv[0] && run_command(&cp))
die(_("run_command returned non-zero status for %s\n."),
displaypath);
if (info->recursive) {
struct child_process cpr = CHILD_PROCESS_INIT;
cpr.git_cmd = 1;
cpr.dir = path;
prepare_submodule_repo_env(&cpr.env_array);
argv_array_pushl(&cpr.args, "--super-prefix", NULL);
argv_array_pushf(&cpr.args, "%s/", displaypath);
argv_array_pushl(&cpr.args, "submodule--helper", "foreach", "--recursive",
NULL);
if (info->quiet)
argv_array_push(&cpr.args, "--quiet");
argv_array_push(&cpr.args, "--");
argv_array_pushv(&cpr.args, info->argv);
if (run_command(&cpr))
die(_("run_command returned non-zero status while "
"recursing in the nested submodules of %s\n."),
displaypath);
}
cleanup:
free(displaypath);
}
static int module_foreach(int argc, const char **argv, const char *prefix)
{
struct foreach_cb info = FOREACH_CB_INIT;
struct pathspec pathspec;
struct module_list list = MODULE_LIST_INIT;
struct option module_foreach_options[] = {
OPT__QUIET(&info.quiet, N_("Suppress output of entering each submodule command")),
OPT_BOOL(0, "recursive", &info.recursive,
N_("Recurse into nested submodules")),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper foreach [--quiet] [--recursive] [--] <command>"),
NULL
};
argc = parse_options(argc, argv, prefix, module_foreach_options,
git_submodule_helper_usage, 0);
if (module_list_compute(0, NULL, prefix, &pathspec, &list) < 0)
return 1;
info.argc = argc;
info.argv = argv;
info.prefix = prefix;
for_each_listed_submodule(&list, runcommand_in_submodule_cb, &info);
return 0;
}
static char *compute_submodule_clone_url(const char *rel_url)
{
char *remoteurl, *relurl;
char *remote = get_default_remote();
struct strbuf remotesb = STRBUF_INIT;
strbuf_addf(&remotesb, "remote.%s.url", remote);
if (git_config_get_string(remotesb.buf, &remoteurl)) {
warning(_("could not look up configuration '%s'. Assuming this repository is its own authoritative upstream."), remotesb.buf);
remoteurl = xgetcwd();
}
relurl = relative_url(remoteurl, rel_url, NULL);
free(remote);
free(remoteurl);
strbuf_release(&remotesb);
return relurl;
}
struct init_cb {
const char *prefix;
unsigned int flags;
};
#define INIT_CB_INIT { NULL, 0 }
static void init_submodule(const char *path, const char *prefix,
unsigned int flags)
{
const struct submodule *sub;
struct strbuf sb = STRBUF_INIT;
char *upd = NULL, *url = NULL, *displaypath;
displaypath = get_submodule_displaypath(path, prefix);
sub = submodule_from_path(the_repository, &null_oid, path);
if (!sub)
die(_("No url found for submodule path '%s' in .gitmodules"),
displaypath);
/*
* NEEDSWORK: In a multi-working-tree world, this needs to be
* set in the per-worktree config.
*
* Set active flag for the submodule being initialized
*/
if (!is_submodule_active(the_repository, path)) {
strbuf_addf(&sb, "submodule.%s.active", sub->name);
git_config_set_gently(sb.buf, "true");
strbuf_reset(&sb);
}
/*
* Copy url setting when it is not set yet.
* To look up the url in .git/config, we must not fall back to
* .gitmodules, so look it up directly.
*/
strbuf_addf(&sb, "submodule.%s.url", sub->name);
if (git_config_get_string(sb.buf, &url)) {
if (!sub->url)
die(_("No url found for submodule path '%s' in .gitmodules"),
displaypath);
url = xstrdup(sub->url);
/* Possibly a url relative to parent */
if (starts_with_dot_dot_slash(url) ||
starts_with_dot_slash(url)) {
char *oldurl = url;
url = compute_submodule_clone_url(oldurl);
free(oldurl);
}
if (git_config_set_gently(sb.buf, url))
die(_("Failed to register url for submodule path '%s'"),
displaypath);
if (!(flags & OPT_QUIET))
fprintf(stderr,
_("Submodule '%s' (%s) registered for path '%s'\n"),
sub->name, url, displaypath);
}
strbuf_reset(&sb);
/* Copy "update" setting when it is not set yet */
strbuf_addf(&sb, "submodule.%s.update", sub->name);
if (git_config_get_string(sb.buf, &upd) &&
sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) {
if (sub->update_strategy.type == SM_UPDATE_COMMAND) {
fprintf(stderr, _("warning: command update mode suggested for submodule '%s'\n"),
sub->name);
upd = xstrdup("none");
} else
upd = xstrdup(submodule_strategy_to_string(&sub->update_strategy));
if (git_config_set_gently(sb.buf, upd))
die(_("Failed to register update mode for submodule path '%s'"), displaypath);
}
strbuf_release(&sb);
free(displaypath);
free(url);
free(upd);
}
static void init_submodule_cb(const struct cache_entry *list_item, void *cb_data)
{
struct init_cb *info = cb_data;
init_submodule(list_item->name, info->prefix, info->flags);
}
static int module_init(int argc, const char **argv, const char *prefix)
{
struct init_cb info = INIT_CB_INIT;
struct pathspec pathspec;
struct module_list list = MODULE_LIST_INIT;
int quiet = 0;
struct option module_init_options[] = {
OPT__QUIET(&quiet, N_("Suppress output for initializing a submodule")),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper init [<options>] [<path>]"),
NULL
};
argc = parse_options(argc, argv, prefix, module_init_options,
git_submodule_helper_usage, 0);
if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
return 1;
/*
* If there are no path args and submodule.active is set then,
* by default, only initialize 'active' modules.
*/
if (!argc && git_config_get_value_multi("submodule.active"))
module_list_active(&list);
info.prefix = prefix;
if (quiet)
info.flags |= OPT_QUIET;
for_each_listed_submodule(&list, init_submodule_cb, &info);
return 0;
}
struct status_cb {
const char *prefix;
unsigned int flags;
};
#define STATUS_CB_INIT { NULL, 0 }
static void print_status(unsigned int flags, char state, const char *path,
const struct object_id *oid, const char *displaypath)
{
if (flags & OPT_QUIET)
return;
printf("%c%s %s", state, oid_to_hex(oid), displaypath);
if (state == ' ' || state == '+') {
const char *name = compute_rev_name(path, oid_to_hex(oid));
if (name)
printf(" (%s)", name);
}
printf("\n");
}
static int handle_submodule_head_ref(const char *refname,
const struct object_id *oid, int flags,
void *cb_data)
{
struct object_id *output = cb_data;
if (oid)
oidcpy(output, oid);
return 0;
}
static void status_submodule(const char *path, const struct object_id *ce_oid,
unsigned int ce_flags, const char *prefix,
unsigned int flags)
{
char *displaypath;
struct argv_array diff_files_args = ARGV_ARRAY_INIT;
struct rev_info rev;
int diff_files_result;
struct strbuf buf = STRBUF_INIT;
const char *git_dir;
if (!submodule_from_path(the_repository, &null_oid, path))
die(_("no submodule mapping found in .gitmodules for path '%s'"),
path);
displaypath = get_submodule_displaypath(path, prefix);
if ((CE_STAGEMASK & ce_flags) >> CE_STAGESHIFT) {
print_status(flags, 'U', path, &null_oid, displaypath);
goto cleanup;
}
strbuf_addf(&buf, "%s/.git", path);
git_dir = read_gitfile(buf.buf);
if (!git_dir)
git_dir = buf.buf;
if (!is_submodule_active(the_repository, path) ||
!is_git_directory(git_dir)) {
print_status(flags, '-', path, ce_oid, displaypath);
strbuf_release(&buf);
goto cleanup;
}
strbuf_release(&buf);
argv_array_pushl(&diff_files_args, "diff-files",
"--ignore-submodules=dirty", "--quiet", "--",
path, NULL);
git_config(git_diff_basic_config, NULL);
repo_init_revisions(the_repository, &rev, NULL);
rev.abbrev = 0;
diff_files_args.argc = setup_revisions(diff_files_args.argc,
diff_files_args.argv,
&rev, NULL);
diff_files_result = run_diff_files(&rev, 0);
if (!diff_result_code(&rev.diffopt, diff_files_result)) {
print_status(flags, ' ', path, ce_oid,
displaypath);
} else if (!(flags & OPT_CACHED)) {
struct object_id oid;
struct ref_store *refs = get_submodule_ref_store(path);
if (!refs) {
print_status(flags, '-', path, ce_oid, displaypath);
goto cleanup;
}
if (refs_head_ref(refs, handle_submodule_head_ref, &oid))
die(_("could not resolve HEAD ref inside the "
"submodule '%s'"), path);
print_status(flags, '+', path, &oid, displaypath);
} else {
print_status(flags, '+', path, ce_oid, displaypath);
}
if (flags & OPT_RECURSIVE) {
struct child_process cpr = CHILD_PROCESS_INIT;
cpr.git_cmd = 1;
cpr.dir = path;
prepare_submodule_repo_env(&cpr.env_array);
argv_array_push(&cpr.args, "--super-prefix");
argv_array_pushf(&cpr.args, "%s/", displaypath);
argv_array_pushl(&cpr.args, "submodule--helper", "status",
"--recursive", NULL);
if (flags & OPT_CACHED)
argv_array_push(&cpr.args, "--cached");
if (flags & OPT_QUIET)
argv_array_push(&cpr.args, "--quiet");
if (run_command(&cpr))
die(_("failed to recurse into submodule '%s'"), path);
}
cleanup:
argv_array_clear(&diff_files_args);
free(displaypath);
}
static void status_submodule_cb(const struct cache_entry *list_item,
void *cb_data)
{
struct status_cb *info = cb_data;
status_submodule(list_item->name, &list_item->oid, list_item->ce_flags,
info->prefix, info->flags);
}
static int module_status(int argc, const char **argv, const char *prefix)
{
struct status_cb info = STATUS_CB_INIT;
struct pathspec pathspec;
struct module_list list = MODULE_LIST_INIT;
int quiet = 0;
struct option module_status_options[] = {
OPT__QUIET(&quiet, N_("Suppress submodule status output")),
OPT_BIT(0, "cached", &info.flags, N_("Use commit stored in the index instead of the one stored in the submodule HEAD"), OPT_CACHED),
OPT_BIT(0, "recursive", &info.flags, N_("recurse into nested submodules"), OPT_RECURSIVE),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule status [--quiet] [--cached] [--recursive] [<path>...]"),
NULL
};
argc = parse_options(argc, argv, prefix, module_status_options,
git_submodule_helper_usage, 0);
if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
return 1;
info.prefix = prefix;
if (quiet)
info.flags |= OPT_QUIET;
for_each_listed_submodule(&list, status_submodule_cb, &info);
return 0;
}
static int module_name(int argc, const char **argv, const char *prefix)
{
const struct submodule *sub;
if (argc != 2)
usage(_("git submodule--helper name <path>"));
sub = submodule_from_path(the_repository, &null_oid, argv[1]);
if (!sub)
die(_("no submodule mapping found in .gitmodules for path '%s'"),
argv[1]);
printf("%s\n", sub->name);
return 0;
}
struct sync_cb {
const char *prefix;
unsigned int flags;
};
#define SYNC_CB_INIT { NULL, 0 }
static void sync_submodule(const char *path, const char *prefix,
unsigned int flags)
{
const struct submodule *sub;
char *remote_key = NULL;
char *sub_origin_url, *super_config_url, *displaypath;
struct strbuf sb = STRBUF_INIT;
struct child_process cp = CHILD_PROCESS_INIT;
char *sub_config_path = NULL;
if (!is_submodule_active(the_repository, path))
return;
sub = submodule_from_path(the_repository, &null_oid, path);
if (sub && sub->url) {
if (starts_with_dot_dot_slash(sub->url) ||
starts_with_dot_slash(sub->url)) {
char *remote_url, *up_path;
char *remote = get_default_remote();
strbuf_addf(&sb, "remote.%s.url", remote);
if (git_config_get_string(sb.buf, &remote_url))
remote_url = xgetcwd();
up_path = get_up_path(path);
sub_origin_url = relative_url(remote_url, sub->url, up_path);
super_config_url = relative_url(remote_url, sub->url, NULL);
free(remote);
free(up_path);
free(remote_url);
} else {
sub_origin_url = xstrdup(sub->url);
super_config_url = xstrdup(sub->url);
}
} else {
sub_origin_url = xstrdup("");
super_config_url = xstrdup("");
}
displaypath = get_submodule_displaypath(path, prefix);
if (!(flags & OPT_QUIET))
printf(_("Synchronizing submodule url for '%s'\n"),
displaypath);
strbuf_reset(&sb);
strbuf_addf(&sb, "submodule.%s.url", sub->name);
if (git_config_set_gently(sb.buf, super_config_url))
die(_("failed to register url for submodule path '%s'"),
displaypath);
if (!is_submodule_populated_gently(path, NULL))
goto cleanup;
prepare_submodule_repo_env(&cp.env_array);
cp.git_cmd = 1;
cp.dir = path;
argv_array_pushl(&cp.args, "submodule--helper",
"print-default-remote", NULL);
strbuf_reset(&sb);
if (capture_command(&cp, &sb, 0))
die(_("failed to get the default remote for submodule '%s'"),
path);
strbuf_strip_suffix(&sb, "\n");
remote_key = xstrfmt("remote.%s.url", sb.buf);
strbuf_reset(&sb);
submodule_to_gitdir(&sb, path);
strbuf_addstr(&sb, "/config");
if (git_config_set_in_file_gently(sb.buf, remote_key, sub_origin_url))
die(_("failed to update remote for submodule '%s'"),
path);
if (flags & OPT_RECURSIVE) {
struct child_process cpr = CHILD_PROCESS_INIT;
cpr.git_cmd = 1;
cpr.dir = path;
prepare_submodule_repo_env(&cpr.env_array);
argv_array_push(&cpr.args, "--super-prefix");
argv_array_pushf(&cpr.args, "%s/", displaypath);
argv_array_pushl(&cpr.args, "submodule--helper", "sync",
"--recursive", NULL);
if (flags & OPT_QUIET)
argv_array_push(&cpr.args, "--quiet");
if (run_command(&cpr))
die(_("failed to recurse into submodule '%s'"),
path);
}
cleanup:
free(super_config_url);
free(sub_origin_url);
strbuf_release(&sb);
free(remote_key);
free(displaypath);
free(sub_config_path);
}
static void sync_submodule_cb(const struct cache_entry *list_item, void *cb_data)
{
struct sync_cb *info = cb_data;
sync_submodule(list_item->name, info->prefix, info->flags);
}
static int module_sync(int argc, const char **argv, const char *prefix)
{
struct sync_cb info = SYNC_CB_INIT;
struct pathspec pathspec;
struct module_list list = MODULE_LIST_INIT;
int quiet = 0;
int recursive = 0;
struct option module_sync_options[] = {
OPT__QUIET(&quiet, N_("Suppress output of synchronizing submodule url")),
OPT_BOOL(0, "recursive", &recursive,
N_("Recurse into nested submodules")),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper sync [--quiet] [--recursive] [<path>]"),
NULL
};
argc = parse_options(argc, argv, prefix, module_sync_options,
git_submodule_helper_usage, 0);
if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
return 1;
info.prefix = prefix;
if (quiet)
info.flags |= OPT_QUIET;
if (recursive)
info.flags |= OPT_RECURSIVE;
for_each_listed_submodule(&list, sync_submodule_cb, &info);
return 0;
}
struct deinit_cb {
const char *prefix;
unsigned int flags;
};
#define DEINIT_CB_INIT { NULL, 0 }
static void deinit_submodule(const char *path, const char *prefix,
unsigned int flags)
{
const struct submodule *sub;
char *displaypath = NULL;
struct child_process cp_config = CHILD_PROCESS_INIT;
struct strbuf sb_config = STRBUF_INIT;
char *sub_git_dir = xstrfmt("%s/.git", path);
sub = submodule_from_path(the_repository, &null_oid, path);
if (!sub || !sub->name)
goto cleanup;
displaypath = get_submodule_displaypath(path, prefix);
/* remove the submodule work tree (unless the user already did it) */
if (is_directory(path)) {
struct strbuf sb_rm = STRBUF_INIT;
const char *format;
/*
* protect submodules containing a .git directory
* NEEDSWORK: instead of dying, automatically call
* absorbgitdirs and (possibly) warn.
*/
if (is_directory(sub_git_dir))
die(_("Submodule work tree '%s' contains a .git "
"directory (use 'rm -rf' if you really want "
"to remove it including all of its history)"),
displaypath);
if (!(flags & OPT_FORCE)) {
struct child_process cp_rm = CHILD_PROCESS_INIT;
cp_rm.git_cmd = 1;
argv_array_pushl(&cp_rm.args, "rm", "-qn",
path, NULL);
if (run_command(&cp_rm))
die(_("Submodule work tree '%s' contains local "
"modifications; use '-f' to discard them"),
displaypath);
}
strbuf_addstr(&sb_rm, path);
if (!remove_dir_recursively(&sb_rm, 0))
format = _("Cleared directory '%s'\n");
else
format = _("Could not remove submodule work tree '%s'\n");
if (!(flags & OPT_QUIET))
printf(format, displaypath);
submodule_unset_core_worktree(sub);
strbuf_release(&sb_rm);
}
if (mkdir(path, 0777))
printf(_("could not create empty submodule directory %s"),
displaypath);
cp_config.git_cmd = 1;
argv_array_pushl(&cp_config.args, "config", "--get-regexp", NULL);
argv_array_pushf(&cp_config.args, "submodule.%s\\.", sub->name);
/* remove the .git/config entries (unless the user already did it) */
if (!capture_command(&cp_config, &sb_config, 0) && sb_config.len) {
char *sub_key = xstrfmt("submodule.%s", sub->name);
/*
* remove the whole section so we have a clean state when
* the user later decides to init this submodule again
*/
git_config_rename_section_in_file(NULL, sub_key, NULL);
if (!(flags & OPT_QUIET))
printf(_("Submodule '%s' (%s) unregistered for path '%s'\n"),
sub->name, sub->url, displaypath);
free(sub_key);
}
cleanup:
free(displaypath);
free(sub_git_dir);
strbuf_release(&sb_config);
}
static void deinit_submodule_cb(const struct cache_entry *list_item,
void *cb_data)
{
struct deinit_cb *info = cb_data;
deinit_submodule(list_item->name, info->prefix, info->flags);
}
static int module_deinit(int argc, const char **argv, const char *prefix)
{
struct deinit_cb info = DEINIT_CB_INIT;
struct pathspec pathspec;
struct module_list list = MODULE_LIST_INIT;
int quiet = 0;
int force = 0;
int all = 0;
struct option module_deinit_options[] = {
OPT__QUIET(&quiet, N_("Suppress submodule status output")),
OPT__FORCE(&force, N_("Remove submodule working trees even if they contain local changes"), 0),
OPT_BOOL(0, "all", &all, N_("Unregister all submodules")),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule deinit [--quiet] [-f | --force] [--all | [--] [<path>...]]"),
NULL
};
argc = parse_options(argc, argv, prefix, module_deinit_options,
git_submodule_helper_usage, 0);
if (all && argc) {
error("pathspec and --all are incompatible");
usage_with_options(git_submodule_helper_usage,
module_deinit_options);
}
if (!argc && !all)
die(_("Use '--all' if you really want to deinitialize all submodules"));
if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
return 1;
info.prefix = prefix;
if (quiet)
info.flags |= OPT_QUIET;
if (force)
info.flags |= OPT_FORCE;
for_each_listed_submodule(&list, deinit_submodule_cb, &info);
return 0;
}
static int clone_submodule(const char *path, const char *gitdir, const char *url,
const char *depth, struct string_list *reference, int dissociate,
int quiet, int progress, int single_branch)
{
struct child_process cp = CHILD_PROCESS_INIT;
argv_array_push(&cp.args, "clone");
argv_array_push(&cp.args, "--no-checkout");
if (quiet)
argv_array_push(&cp.args, "--quiet");
if (progress)
argv_array_push(&cp.args, "--progress");
if (depth && *depth)
argv_array_pushl(&cp.args, "--depth", depth, NULL);
if (reference->nr) {
struct string_list_item *item;
for_each_string_list_item(item, reference)
argv_array_pushl(&cp.args, "--reference",
item->string, NULL);
}
if (dissociate)
argv_array_push(&cp.args, "--dissociate");
if (gitdir && *gitdir)
argv_array_pushl(&cp.args, "--separate-git-dir", gitdir, NULL);
if (single_branch >= 0)
argv_array_push(&cp.args, single_branch ?
"--single-branch" :
"--no-single-branch");
argv_array_push(&cp.args, "--");
argv_array_push(&cp.args, url);
argv_array_push(&cp.args, path);
cp.git_cmd = 1;
prepare_submodule_repo_env(&cp.env_array);
cp.no_stdin = 1;
return run_command(&cp);
}
struct submodule_alternate_setup {
const char *submodule_name;
enum SUBMODULE_ALTERNATE_ERROR_MODE {
SUBMODULE_ALTERNATE_ERROR_DIE,
SUBMODULE_ALTERNATE_ERROR_INFO,
SUBMODULE_ALTERNATE_ERROR_IGNORE
} error_mode;
struct string_list *reference;
};
#define SUBMODULE_ALTERNATE_SETUP_INIT { NULL, \
SUBMODULE_ALTERNATE_ERROR_IGNORE, NULL }
static const char alternate_error_advice[] = N_(
"An alternate computed from a superproject's alternate is invalid.\n"
"To allow Git to clone without an alternate in such a case, set\n"
"submodule.alternateErrorStrategy to 'info' or, equivalently, clone with\n"
"'--reference-if-able' instead of '--reference'."
);
static int add_possible_reference_from_superproject(
struct object_directory *odb, void *sas_cb)
{
struct submodule_alternate_setup *sas = sas_cb;
size_t len;
/*
* If the alternate object store is another repository, try the
* standard layout with .git/(modules/<name>)+/objects
*/
if (strip_suffix(odb->path, "/objects", &len)) {
char *sm_alternate;
struct strbuf sb = STRBUF_INIT;
struct strbuf err = STRBUF_INIT;
strbuf_add(&sb, odb->path, len);
/*
* We need to end the new path with '/' to mark it as a dir,
* otherwise a submodule name containing '/' will be broken
* as the last part of a missing submodule reference would
* be taken as a file name.
*/
strbuf_addf(&sb, "/modules/%s/", sas->submodule_name);
sm_alternate = compute_alternate_path(sb.buf, &err);
if (sm_alternate) {
string_list_append(sas->reference, xstrdup(sb.buf));
free(sm_alternate);
} else {
switch (sas->error_mode) {
case SUBMODULE_ALTERNATE_ERROR_DIE:
if (advice_submodule_alternate_error_strategy_die)
advise(_(alternate_error_advice));
die(_("submodule '%s' cannot add alternate: %s"),
sas->submodule_name, err.buf);
case SUBMODULE_ALTERNATE_ERROR_INFO:
fprintf_ln(stderr, _("submodule '%s' cannot add alternate: %s"),
sas->submodule_name, err.buf);
case SUBMODULE_ALTERNATE_ERROR_IGNORE:
; /* nothing */
}
}
strbuf_release(&sb);
}
return 0;
}
static void prepare_possible_alternates(const char *sm_name,
struct string_list *reference)
{
char *sm_alternate = NULL, *error_strategy = NULL;
struct submodule_alternate_setup sas = SUBMODULE_ALTERNATE_SETUP_INIT;
git_config_get_string("submodule.alternateLocation", &sm_alternate);
if (!sm_alternate)
return;
git_config_get_string("submodule.alternateErrorStrategy", &error_strategy);
if (!error_strategy)
error_strategy = xstrdup("die");
sas.submodule_name = sm_name;
sas.reference = reference;
if (!strcmp(error_strategy, "die"))
sas.error_mode = SUBMODULE_ALTERNATE_ERROR_DIE;
else if (!strcmp(error_strategy, "info"))
sas.error_mode = SUBMODULE_ALTERNATE_ERROR_INFO;
else if (!strcmp(error_strategy, "ignore"))
sas.error_mode = SUBMODULE_ALTERNATE_ERROR_IGNORE;
else
die(_("Value '%s' for submodule.alternateErrorStrategy is not recognized"), error_strategy);
if (!strcmp(sm_alternate, "superproject"))
foreach_alt_odb(add_possible_reference_from_superproject, &sas);
else if (!strcmp(sm_alternate, "no"))
; /* do nothing */
else
die(_("Value '%s' for submodule.alternateLocation is not recognized"), sm_alternate);
free(sm_alternate);
free(error_strategy);
}
static int module_clone(int argc, const char **argv, const char *prefix)
{
const char *name = NULL, *url = NULL, *depth = NULL;
int quiet = 0;
int progress = 0;
char *p, *path = NULL, *sm_gitdir;
struct strbuf sb = STRBUF_INIT;
struct string_list reference = STRING_LIST_INIT_NODUP;
int dissociate = 0, require_init = 0;
char *sm_alternate = NULL, *error_strategy = NULL;
int single_branch = -1;
struct option module_clone_options[] = {
OPT_STRING(0, "prefix", &prefix,
N_("path"),
N_("alternative anchor for relative paths")),
OPT_STRING(0, "path", &path,
N_("path"),
N_("where the new submodule will be cloned to")),
OPT_STRING(0, "name", &name,
N_("string"),
N_("name of the new submodule")),
OPT_STRING(0, "url", &url,
N_("string"),
N_("url where to clone the submodule from")),
OPT_STRING_LIST(0, "reference", &reference,
N_("repo"),
N_("reference repository")),
OPT_BOOL(0, "dissociate", &dissociate,
N_("use --reference only while cloning")),
OPT_STRING(0, "depth", &depth,
N_("string"),
N_("depth for shallow clones")),
OPT__QUIET(&quiet, "Suppress output for cloning a submodule"),
OPT_BOOL(0, "progress", &progress,
N_("force cloning progress")),
OPT_BOOL(0, "require-init", &require_init,
N_("disallow cloning into non-empty directory")),
OPT_BOOL(0, "single-branch", &single_branch,
N_("clone only one branch, HEAD or --branch")),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper clone [--prefix=<path>] [--quiet] "
"[--reference <repository>] [--name <name>] [--depth <depth>] "
"[--single-branch] "
"--url <url> --path <path>"),
NULL
};
argc = parse_options(argc, argv, prefix, module_clone_options,
git_submodule_helper_usage, 0);
if (argc || !url || !path || !*path)
usage_with_options(git_submodule_helper_usage,
module_clone_options);
strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
sm_gitdir = absolute_pathdup(sb.buf);
strbuf_reset(&sb);
if (!is_absolute_path(path)) {
strbuf_addf(&sb, "%s/%s", get_git_work_tree(), path);
path = strbuf_detach(&sb, NULL);
} else
path = xstrdup(path);
if (validate_submodule_git_dir(sm_gitdir, name) < 0)
die(_("refusing to create/use '%s' in another submodule's "
"git dir"), sm_gitdir);
if (!file_exists(sm_gitdir)) {
if (safe_create_leading_directories_const(sm_gitdir) < 0)
die(_("could not create directory '%s'"), sm_gitdir);
prepare_possible_alternates(name, &reference);
if (clone_submodule(path, sm_gitdir, url, depth, &reference, dissociate,
quiet, progress, single_branch))
die(_("clone of '%s' into submodule path '%s' failed"),
url, path);
} else {
if (require_init && !access(path, X_OK) && !is_empty_dir(path))
die(_("directory not empty: '%s'"), path);
if (safe_create_leading_directories_const(path) < 0)
die(_("could not create directory '%s'"), path);
strbuf_addf(&sb, "%s/index", sm_gitdir);
unlink_or_warn(sb.buf);
strbuf_reset(&sb);
}
connect_work_tree_and_git_dir(path, sm_gitdir, 0);
p = git_pathdup_submodule(path, "config");
if (!p)
die(_("could not get submodule directory for '%s'"), path);
/* setup alternateLocation and alternateErrorStrategy in the cloned submodule if needed */
git_config_get_string("submodule.alternateLocation", &sm_alternate);
if (sm_alternate)
git_config_set_in_file(p, "submodule.alternateLocation",
sm_alternate);
git_config_get_string("submodule.alternateErrorStrategy", &error_strategy);
if (error_strategy)
git_config_set_in_file(p, "submodule.alternateErrorStrategy",
error_strategy);
free(sm_alternate);
free(error_strategy);
strbuf_release(&sb);
free(sm_gitdir);
free(path);
free(p);
return 0;
}
static void determine_submodule_update_strategy(struct repository *r,
int just_cloned,
const char *path,
const char *update,
struct submodule_update_strategy *out)
{
const struct submodule *sub = submodule_from_path(r, &null_oid, path);
char *key;
const char *val;
key = xstrfmt("submodule.%s.update", sub->name);
if (update) {
if (parse_submodule_update_strategy(update, out) < 0)
die(_("Invalid update mode '%s' for submodule path '%s'"),
update, path);
} else if (!repo_config_get_string_const(r, key, &val)) {
if (parse_submodule_update_strategy(val, out) < 0)
die(_("Invalid update mode '%s' configured for submodule path '%s'"),
val, path);
} else if (sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) {
if (sub->update_strategy.type == SM_UPDATE_COMMAND)
BUG("how did we read update = !command from .gitmodules?");
out->type = sub->update_strategy.type;
out->command = sub->update_strategy.command;
} else
out->type = SM_UPDATE_CHECKOUT;
if (just_cloned &&
(out->type == SM_UPDATE_MERGE ||
out->type == SM_UPDATE_REBASE ||
out->type == SM_UPDATE_NONE))
out->type = SM_UPDATE_CHECKOUT;
free(key);
}
static int module_update_module_mode(int argc, const char **argv, const char *prefix)
{
const char *path, *update = NULL;
int just_cloned;
struct submodule_update_strategy update_strategy = { .type = SM_UPDATE_CHECKOUT };
if (argc < 3 || argc > 4)
die("submodule--helper update-module-clone expects <just-cloned> <path> [<update>]");
just_cloned = git_config_int("just_cloned", argv[1]);
path = argv[2];
if (argc == 4)
update = argv[3];
determine_submodule_update_strategy(the_repository,
just_cloned, path, update,
&update_strategy);
fputs(submodule_strategy_to_string(&update_strategy), stdout);
return 0;
}
struct update_clone_data {
const struct submodule *sub;
struct object_id oid;
unsigned just_cloned;
};
struct submodule_update_clone {
/* index into 'list', the list of submodules to look into for cloning */
int current;
struct module_list list;
unsigned warn_if_uninitialized : 1;
/* update parameter passed via commandline */
struct submodule_update_strategy update;
/* configuration parameters which are passed on to the children */
int progress;
int quiet;
int recommend_shallow;
struct string_list references;
int dissociate;
unsigned require_init;
const char *depth;
const char *recursive_prefix;
const char *prefix;
int single_branch;
/* to be consumed by git-submodule.sh */
struct update_clone_data *update_clone;
int update_clone_nr; int update_clone_alloc;
/* 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;
int max_jobs;
};
#define SUBMODULE_UPDATE_CLONE_INIT { \
.list = MODULE_LIST_INIT, \
.update = SUBMODULE_UPDATE_STRATEGY_INIT, \
.recommend_shallow = -1, \
.references = STRING_LIST_INIT_DUP, \
.single_branch = -1, \
.max_jobs = 1, \
}
static void next_submodule_warn_missing(struct submodule_update_clone *suc,
struct strbuf *out, const char *displaypath)
{
/*
* Only mention uninitialized submodules when their
* paths have been specified.
*/
if (suc->warn_if_uninitialized) {
strbuf_addf(out,
_("Submodule path '%s' not initialized"),
displaypath);
strbuf_addch(out, '\n');
strbuf_addstr(out,
_("Maybe you want to use 'update --init'?"));
strbuf_addch(out, '\n');
}
}
/**
* Determine whether 'ce' needs to be cloned. If so, prepare the 'child' to
* run the clone. Returns 1 if 'ce' needs to be cloned, 0 otherwise.
*/
static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
struct child_process *child,
struct submodule_update_clone *suc,
struct strbuf *out)
{
const struct submodule *sub = NULL;
const char *url = NULL;
const char *update_string;
enum submodule_update_type update_type;
char *key;
struct strbuf displaypath_sb = STRBUF_INIT;
struct strbuf sb = STRBUF_INIT;
const char *displaypath = NULL;
int needs_cloning = 0;
int need_free_url = 0;
if (ce_stage(ce)) {
if (suc->recursive_prefix)
strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name);
else
strbuf_addstr(&sb, ce->name);
strbuf_addf(out, _("Skipping unmerged submodule %s"), sb.buf);
strbuf_addch(out, '\n');
goto cleanup;
}
sub = submodule_from_path(the_repository, &null_oid, ce->name);
if (suc->recursive_prefix)
displaypath = relative_path(suc->recursive_prefix,
ce->name, &displaypath_sb);
else
displaypath = ce->name;
if (!sub) {
next_submodule_warn_missing(suc, out, displaypath);
goto cleanup;
}
key = xstrfmt("submodule.%s.update", sub->name);
if (!repo_config_get_string_const(the_repository, key, &update_string)) {
update_type = parse_submodule_update_type(update_string);
} else {
update_type = sub->update_strategy.type;
}
free(key);
if (suc->update.type == SM_UPDATE_NONE
|| (suc->update.type == SM_UPDATE_UNSPECIFIED
&& update_type == SM_UPDATE_NONE)) {
strbuf_addf(out, _("Skipping submodule '%s'"), displaypath);
strbuf_addch(out, '\n');
goto cleanup;
}
/* Check if the submodule has been initialized. */
if (!is_submodule_active(the_repository, ce->name)) {
next_submodule_warn_missing(suc, out, displaypath);
goto cleanup;
}
strbuf_reset(&sb);
strbuf_addf(&sb, "submodule.%s.url", sub->name);
if (repo_config_get_string_const(the_repository, sb.buf, &url)) {
if (starts_with_dot_slash(sub->url) ||
starts_with_dot_dot_slash(sub->url)) {
url = compute_submodule_clone_url(sub->url);
need_free_url = 1;
} else
url = sub->url;
}
strbuf_reset(&sb);
strbuf_addf(&sb, "%s/.git", ce->name);
needs_cloning = !file_exists(sb.buf);
ALLOC_GROW(suc->update_clone, suc->update_clone_nr + 1,
suc->update_clone_alloc);
oidcpy(&suc->update_clone[suc->update_clone_nr].oid, &ce->oid);
suc->update_clone[suc->update_clone_nr].just_cloned = needs_cloning;
suc->update_clone[suc->update_clone_nr].sub = sub;
suc->update_clone_nr++;
if (!needs_cloning)
goto cleanup;
child->git_cmd = 1;
child->no_stdin = 1;
child->stdout_to_stderr = 1;
child->err = -1;
argv_array_push(&child->args, "submodule--helper");
argv_array_push(&child->args, "clone");
if (suc->progress)
argv_array_push(&child->args, "--progress");
if (suc->quiet)
argv_array_push(&child->args, "--quiet");
if (suc->prefix)
argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL);
if (suc->recommend_shallow && sub->recommend_shallow == 1)
argv_array_push(&child->args, "--depth=1");
if (suc->require_init)
argv_array_push(&child->args, "--require-init");
argv_array_pushl(&child->args, "--path", sub->path, NULL);
argv_array_pushl(&child->args, "--name", sub->name, NULL);
argv_array_pushl(&child->args, "--url", url, NULL);
if (suc->references.nr) {
struct string_list_item *item;
for_each_string_list_item(item, &suc->references)
argv_array_pushl(&child->args, "--reference", item->string, NULL);
}
if (suc->dissociate)
argv_array_push(&child->args, "--dissociate");
if (suc->depth)
argv_array_push(&child->args, suc->depth);
if (suc->single_branch >= 0)
argv_array_push(&child->args, suc->single_branch ?
"--single-branch" :
"--no-single-branch");
cleanup:
strbuf_reset(&displaypath_sb);
strbuf_reset(&sb);
if (need_free_url)
free((void*)url);
return needs_cloning;
}
static int update_clone_get_next_task(struct child_process *child,
struct strbuf *err,
void *suc_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++) {
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)) {
suc->current ++;
strbuf_addstr(err, "BUG: submodule considered for "
"cloning, doesn't need cloning "
"any more?\n");
return 0;
}
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 *idx_task_cb)
{
struct submodule_update_clone *suc = suc_cb;
suc->quickstop = 1;
return 1;
}
static int update_clone_task_finished(int result,
struct strbuf *err,
void *suc_cb,
void *idx_task_cb)
{
const struct cache_entry *ce;
struct submodule_update_clone *suc = suc_cb;
int *idxP = idx_task_cb;
int idx = *idxP;
free(idxP);
if (!result)
return 0;
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->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 git_update_clone_config(const char *var, const char *value,
void *cb)
{
int *max_jobs = cb;
if (!strcmp(var, "submodule.fetchjobs"))
*max_jobs = parse_submodule_fetchjobs(var, value);
return 0;
}
static void update_submodule(struct update_clone_data *ucd)
{
fprintf(stdout, "dummy %s %d\t%s\n",
oid_to_hex(&ucd->oid),
ucd->just_cloned,
ucd->sub->path);
}
static int update_submodules(struct submodule_update_clone *suc)
{
int i;
run_processes_parallel_tr2(suc->max_jobs, update_clone_get_next_task,
update_clone_start_failure,
update_clone_task_finished, suc, "submodule",
"parallel/update");
/*
* We saved the output and put it out all at once now.
* That means:
* - the listener does not have to interleave their (checkout)
* work with our fetching. The writes involved in a
* checkout involve more straightforward sequential I/O.
* - the listener can avoid doing any work if fetching failed.
*/
if (suc->quickstop)
return 1;
for (i = 0; i < suc->update_clone_nr; i++)
update_submodule(&suc->update_clone[i]);
return 0;
}
static int update_clone(int argc, const char **argv, const char *prefix)
{
const char *update = NULL;
struct pathspec pathspec;
struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT;
struct option module_update_clone_options[] = {
OPT_STRING(0, "prefix", &prefix,
N_("path"),
N_("path into the working tree")),
OPT_STRING(0, "recursive-prefix", &suc.recursive_prefix,
N_("path"),
N_("path into the working tree, across nested "
"submodule boundaries")),
OPT_STRING(0, "update", &update,
N_("string"),
N_("rebase, merge, checkout or none")),
OPT_STRING_LIST(0, "reference", &suc.references, N_("repo"),
N_("reference repository")),
OPT_BOOL(0, "dissociate", &suc.dissociate,
N_("use --reference only while cloning")),
OPT_STRING(0, "depth", &suc.depth, "<depth>",
N_("Create a shallow clone truncated to the "
"specified number of revisions")),
OPT_INTEGER('j', "jobs", &suc.max_jobs,
N_("parallel jobs")),
OPT_BOOL(0, "recommend-shallow", &suc.recommend_shallow,
N_("whether the initial clone should follow the shallow recommendation")),
OPT__QUIET(&suc.quiet, N_("don't print cloning progress")),
OPT_BOOL(0, "progress", &suc.progress,
N_("force cloning progress")),
OPT_BOOL(0, "require-init", &suc.require_init,
N_("disallow cloning into non-empty directory")),
OPT_BOOL(0, "single-branch", &suc.single_branch,
N_("clone only one branch, HEAD or --branch")),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper update-clone [--prefix=<path>] [<path>...]"),
NULL
};
suc.prefix = prefix;
update_clone_config_from_gitmodules(&suc.max_jobs);
git_config(git_update_clone_config, &suc.max_jobs);
argc = parse_options(argc, argv, prefix, module_update_clone_options,
git_submodule_helper_usage, 0);
if (update)
if (parse_submodule_update_strategy(update, &suc.update) < 0)
die(_("bad value for update parameter"));
if (module_list_compute(argc, argv, prefix, &pathspec, &suc.list) < 0)
return 1;
if (pathspec.nr)
suc.warn_if_uninitialized = 1;
return update_submodules(&suc);
}
static int resolve_relative_path(int argc, const char **argv, const char *prefix)
{
struct strbuf sb = STRBUF_INIT;
if (argc != 3)
die("submodule--helper relative-path takes exactly 2 arguments, got %d", argc);
printf("%s", relative_path(argv[1], argv[2], &sb));
strbuf_release(&sb);
return 0;
}
static const char *remote_submodule_branch(const char *path)
{
const struct submodule *sub;
const char *branch = NULL;
char *key;
sub = submodule_from_path(the_repository, &null_oid, path);
if (!sub)
return NULL;
key = xstrfmt("submodule.%s.branch", sub->name);
if (repo_config_get_string_const(the_repository, key, &branch))
branch = sub->branch;
free(key);
if (!branch)
return "master";
if (!strcmp(branch, ".")) {
const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, NULL);
if (!refname)
die(_("No such ref: %s"), "HEAD");
/* detached HEAD */
if (!strcmp(refname, "HEAD"))
die(_("Submodule (%s) branch configured to inherit "
"branch from superproject, but the superproject "
"is not on any branch"), sub->name);
if (!skip_prefix(refname, "refs/heads/", &refname))
die(_("Expecting a full ref name, got %s"), refname);
return refname;
}
return branch;
}
static int resolve_remote_submodule_branch(int argc, const char **argv,
const char *prefix)
{
const char *ret;
struct strbuf sb = STRBUF_INIT;
if (argc != 2)
die("submodule--helper remote-branch takes exactly one arguments, got %d", argc);
ret = remote_submodule_branch(argv[1]);
if (!ret)
die("submodule %s doesn't exist", argv[1]);
printf("%s", ret);
strbuf_release(&sb);
return 0;
}
static int push_check(int argc, const char **argv, const char *prefix)
{
struct remote *remote;
const char *superproject_head;
char *head;
int detached_head = 0;
struct object_id head_oid;
if (argc < 3)
die("submodule--helper push-check requires at least 2 arguments");
/*
* superproject's resolved head ref.
* if HEAD then the superproject is in a detached head state, otherwise
* it will be the resolved head ref.
*/
superproject_head = argv[1];
argv++;
argc--;
/* Get the submodule's head ref and determine if it is detached */
head = resolve_refdup("HEAD", 0, &head_oid, NULL);
if (!head)
die(_("Failed to resolve HEAD as a valid ref."));
if (!strcmp(head, "HEAD"))
detached_head = 1;
/*
* The remote must be configured.
* This is to avoid pushing to the exact same URL as the parent.
*/
remote = pushremote_get(argv[1]);
if (!remote || remote->origin == REMOTE_UNCONFIGURED)
die("remote '%s' not configured", argv[1]);
/* Check the refspec */
if (argc > 2) {
int i;
struct ref *local_refs = get_local_heads();
struct refspec refspec = REFSPEC_INIT_PUSH;
refspec_appendn(&refspec, argv + 2, argc - 2);
for (i = 0; i < refspec.nr; i++) {
const struct refspec_item *rs = &refspec.items[i];
if (rs->pattern || rs->matching)
continue;
/* LHS must match a single ref */
switch (count_refspec_match(rs->src, local_refs, NULL)) {
case 1:
break;
case 0:
/*
* If LHS matches 'HEAD' then we need to ensure
* that it matches the same named branch
* checked out in the superproject.
*/
if (!strcmp(rs->src, "HEAD")) {
if (!detached_head &&
!strcmp(head, superproject_head))
break;
die("HEAD does not match the named branch in the superproject");
}
/* fallthrough */
default:
die("src refspec '%s' must name a ref",
rs->src);
}
}
refspec_clear(&refspec);
}
free(head);
return 0;
}
static int ensure_core_worktree(int argc, const char **argv, const char *prefix)
{
const struct submodule *sub;
const char *path;
char *cw;
struct repository subrepo;
if (argc != 2)
BUG("submodule--helper ensure-core-worktree <path>");
path = argv[1];
sub = submodule_from_path(the_repository, &null_oid, path);
if (!sub)
BUG("We could get the submodule handle before?");
if (repo_submodule_init(&subrepo, the_repository, sub))
die(_("could not get a repository handle for submodule '%s'"), path);
if (!repo_config_get_string(&subrepo, "core.worktree", &cw)) {
char *cfg_file, *abs_path;
const char *rel_path;
struct strbuf sb = STRBUF_INIT;
cfg_file = repo_git_path(&subrepo, "config");
abs_path = absolute_pathdup(path);
rel_path = relative_path(abs_path, subrepo.gitdir, &sb);
git_config_set_in_file(cfg_file, "core.worktree", rel_path);
free(cfg_file);
free(abs_path);
strbuf_release(&sb);
}
return 0;
}
static int absorb_git_dirs(int argc, const char **argv, const char *prefix)
{
int i;
struct pathspec pathspec;
struct module_list list = MODULE_LIST_INIT;
unsigned flags = ABSORB_GITDIR_RECURSE_SUBMODULES;
struct option embed_gitdir_options[] = {
OPT_STRING(0, "prefix", &prefix,
N_("path"),
N_("path into the working tree")),
OPT_BIT(0, "--recursive", &flags, N_("recurse into submodules"),
ABSORB_GITDIR_RECURSE_SUBMODULES),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper absorb-git-dirs [<options>] [<path>...]"),
NULL
};
argc = parse_options(argc, argv, prefix, embed_gitdir_options,
git_submodule_helper_usage, 0);
if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
return 1;
for (i = 0; i < list.nr; i++)
absorb_git_dir_into_superproject(list.entries[i]->name, flags);
return 0;
}
static int is_active(int argc, const char **argv, const char *prefix)
{
if (argc != 2)
die("submodule--helper is-active takes exactly 1 argument");
return !is_submodule_active(the_repository, argv[1]);
}
/*
* Exit non-zero if any of the submodule names given on the command line is
* invalid. If no names are given, filter stdin to print only valid names
* (which is primarily intended for testing).
*/
static int check_name(int argc, const char **argv, const char *prefix)
{
if (argc > 1) {
while (*++argv) {
if (check_submodule_name(*argv) < 0)
return 1;
}
} else {
struct strbuf buf = STRBUF_INIT;
while (strbuf_getline(&buf, stdin) != EOF) {
if (!check_submodule_name(buf.buf))
printf("%s\n", buf.buf);
}
strbuf_release(&buf);
}
return 0;
}
static int module_config(int argc, const char **argv, const char *prefix)
{
enum {
CHECK_WRITEABLE = 1,
DO_UNSET = 2
} command = 0;
struct option module_config_options[] = {
OPT_CMDMODE(0, "check-writeable", &command,
N_("check if it is safe to write to the .gitmodules file"),
CHECK_WRITEABLE),
OPT_CMDMODE(0, "unset", &command,
N_("unset the config in the .gitmodules file"),
DO_UNSET),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper config <name> [<value>]"),
N_("git submodule--helper config --unset <name>"),
N_("git submodule--helper config --check-writeable"),
NULL
};
argc = parse_options(argc, argv, prefix, module_config_options,
git_submodule_helper_usage, PARSE_OPT_KEEP_ARGV0);
if (argc == 1 && command == CHECK_WRITEABLE)
return is_writing_gitmodules_ok() ? 0 : -1;
/* Equivalent to ACTION_GET in builtin/config.c */
if (argc == 2 && command != DO_UNSET)
return print_config_from_gitmodules(the_repository, argv[1]);
/* Equivalent to ACTION_SET in builtin/config.c */
if (argc == 3 || (argc == 2 && command == DO_UNSET)) {
const char *value = (argc == 3) ? argv[2] : NULL;
if (!is_writing_gitmodules_ok())
die(_("please make sure that the .gitmodules file is in the working tree"));
return config_set_in_gitmodules_file_gently(argv[1], value);
}
usage_with_options(git_submodule_helper_usage, module_config_options);
}
static int module_set_url(int argc, const char **argv, const char *prefix)
{
int quiet = 0;
const char *newurl;
const char *path;
char *config_name;
struct option options[] = {
OPT__QUIET(&quiet, N_("Suppress output for setting url of a submodule")),
OPT_END()
};
const char *const usage[] = {
N_("git submodule--helper set-url [--quiet] <path> <newurl>"),
NULL
};
argc = parse_options(argc, argv, prefix, options, usage, 0);
if (argc != 2 || !(path = argv[0]) || !(newurl = argv[1]))
usage_with_options(usage, options);
config_name = xstrfmt("submodule.%s.url", path);
config_set_in_gitmodules_file_gently(config_name, newurl);
sync_submodule(path, prefix, quiet ? OPT_QUIET : 0);
free(config_name);
return 0;
}
static int module_set_branch(int argc, const char **argv, const char *prefix)
{
int opt_default = 0, ret;
const char *opt_branch = NULL;
const char *path;
char *config_name;
/*
* We accept the `quiet` option for uniformity across subcommands,
* though there is nothing to make less verbose in this subcommand.
*/
struct option options[] = {
OPT_NOOP_NOARG('q', "quiet"),
OPT_BOOL('d', "default", &opt_default,
N_("set the default tracking branch to master")),
OPT_STRING('b', "branch", &opt_branch, N_("branch"),
N_("set the default tracking branch")),
OPT_END()
};
const char *const usage[] = {
N_("git submodule--helper set-branch [-q|--quiet] (-d|--default) <path>"),
N_("git submodule--helper set-branch [-q|--quiet] (-b|--branch) <branch> <path>"),
NULL
};
argc = parse_options(argc, argv, prefix, options, usage, 0);
if (!opt_branch && !opt_default)
die(_("--branch or --default required"));
if (opt_branch && opt_default)
die(_("--branch and --default are mutually exclusive"));
if (argc != 1 || !(path = argv[0]))
usage_with_options(usage, options);
config_name = xstrfmt("submodule.%s.branch", path);
ret = config_set_in_gitmodules_file_gently(config_name, opt_branch);
free(config_name);
return !!ret;
}
#define SUPPORT_SUPER_PREFIX (1<<0)
struct cmd_struct {
const char *cmd;
int (*fn)(int, const char **, const char *);
unsigned option;
};
static struct cmd_struct commands[] = {
{"list", module_list, 0},
{"name", module_name, 0},
{"clone", module_clone, 0},
{"update-module-mode", module_update_module_mode, 0},
{"update-clone", update_clone, 0},
{"ensure-core-worktree", ensure_core_worktree, 0},
{"relative-path", resolve_relative_path, 0},
{"resolve-relative-url", resolve_relative_url, 0},
{"resolve-relative-url-test", resolve_relative_url_test, 0},
{"foreach", module_foreach, SUPPORT_SUPER_PREFIX},
{"init", module_init, SUPPORT_SUPER_PREFIX},
{"status", module_status, SUPPORT_SUPER_PREFIX},
{"print-default-remote", print_default_remote, 0},
{"sync", module_sync, SUPPORT_SUPER_PREFIX},
{"deinit", module_deinit, 0},
{"remote-branch", resolve_remote_submodule_branch, 0},
{"push-check", push_check, 0},
{"absorb-git-dirs", absorb_git_dirs, SUPPORT_SUPER_PREFIX},
{"is-active", is_active, 0},
{"check-name", check_name, 0},
{"config", module_config, 0},
{"set-url", module_set_url, 0},
{"set-branch", module_set_branch, 0},
};
int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
{
int i;
if (argc < 2 || !strcmp(argv[1], "-h"))
usage("git submodule--helper <command>");
for (i = 0; i < ARRAY_SIZE(commands); i++) {
if (!strcmp(argv[1], commands[i].cmd)) {
if (get_super_prefix() &&
!(commands[i].option & SUPPORT_SUPER_PREFIX))
die(_("%s doesn't support --super-prefix"),
commands[i].cmd);
return commands[i].fn(argc - 1, argv + 1, prefix);
}
}
die(_("'%s' is not a valid submodule--helper "
"subcommand"), argv[1]);
}
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