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#include "builtin.h"
#include "cache.h"
#include "parse-options.h"
#include "quote.h"
#include "pathspec.h"
#include "dir.h"
#include "utf8.h"
#include "submodule.h"
#include "submodule-config.h"
#include "string-list.h"
#include "run-command.h"
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 |
PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP,
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(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, prefix))
result = -1;
free(ps_matched);
return result;
}
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) {
printf("#unmatched\n");
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, sha1_to_hex(null_sha1));
else
printf("%06o %s %d\t", ce->ce_mode, sha1_to_hex(ce->sha1), ce_stage(ce));
utf8_fprintf(stdout, "%s\n", ce->name);
}
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>"));
gitmodules_config();
sub = submodule_from_path(null_sha1, argv[1]);
if (!sub)
die(_("no submodule mapping found in .gitmodules for path '%s'"),
argv[1]);
printf("%s\n", sub->name);
return 0;
}
static int clone_submodule(const char *path, const char *gitdir, const char *url,
const char *depth, const char *reference, int quiet)
{
struct child_process cp;
child_process_init(&cp);
argv_array_push(&cp.args, "clone");
argv_array_push(&cp.args, "--no-checkout");
if (quiet)
argv_array_push(&cp.args, "--quiet");
if (depth && *depth)
argv_array_pushl(&cp.args, "--depth", depth, NULL);
if (reference && *reference)
argv_array_pushl(&cp.args, "--reference", reference, NULL);
if (gitdir && *gitdir)
argv_array_pushl(&cp.args, "--separate-git-dir", gitdir, NULL);
argv_array_push(&cp.args, url);
argv_array_push(&cp.args, path);
cp.git_cmd = 1;
cp.env = local_repo_env;
cp.no_stdin = 1;
return run_command(&cp);
}
static int module_clone(int argc, const char **argv, const char *prefix)
{
const char *name = NULL, *url = NULL;
const char *reference = NULL, *depth = NULL;
int quiet = 0;
FILE *submodule_dot_git;
char *p, *path = NULL, *sm_gitdir;
struct strbuf rel_path = STRBUF_INIT;
struct strbuf sb = STRBUF_INIT;
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(0, "reference", &reference,
N_("string"),
N_("reference repository")),
OPT_STRING(0, "depth", &depth,
N_("string"),
N_("depth for shallow clones")),
OPT__QUIET(&quiet, "Suppress output for cloning a submodule"),
OPT_END()
};
const char *const git_submodule_helper_usage[] = {
N_("git submodule--helper clone [--prefix=<path>] [--quiet] "
"[--reference <repository>] [--name <name>] [--url <url>]"
"[--depth <depth>] [--] [<path>...]"),
NULL
};
argc = parse_options(argc, argv, prefix, module_clone_options,
git_submodule_helper_usage, 0);
if (!path || !*path)
die(_("submodule--helper: unspecified or empty --path"));
strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
sm_gitdir = xstrdup(absolute_path(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 (!file_exists(sm_gitdir)) {
if (safe_create_leading_directories_const(sm_gitdir) < 0)
die(_("could not create directory '%s'"), sm_gitdir);
if (clone_submodule(path, sm_gitdir, url, depth, reference, quiet))
die(_("clone of '%s' into submodule path '%s' failed"),
url, path);
} else {
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);
}
/* Write a .git file in the submodule to redirect to the superproject. */
strbuf_addf(&sb, "%s/.git", path);
if (safe_create_leading_directories_const(sb.buf) < 0)
die(_("could not create leading directories of '%s'"), sb.buf);
submodule_dot_git = fopen(sb.buf, "w");
if (!submodule_dot_git)
die_errno(_("cannot open file '%s'"), sb.buf);
fprintf_or_die(submodule_dot_git, "gitdir: %s\n",
relative_path(sm_gitdir, path, &rel_path));
if (fclose(submodule_dot_git))
die(_("could not close file %s"), sb.buf);
strbuf_reset(&sb);
strbuf_reset(&rel_path);
/* Redirect the worktree of the submodule in the superproject's config */
p = git_pathdup_submodule(path, "config");
if (!p)
die(_("could not get submodule directory for '%s'"), path);
git_config_set_in_file(p, "core.worktree",
relative_path(path, sm_gitdir, &rel_path));
strbuf_release(&sb);
strbuf_release(&rel_path);
free(sm_gitdir);
free(path);
free(p);
return 0;
}
struct cmd_struct {
const char *cmd;
int (*fn)(int, const char **, const char *);
};
static struct cmd_struct commands[] = {
{"list", module_list},
{"name", module_name},
{"clone", module_clone},
};
int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
{
int i;
if (argc < 2)
die(_("fatal: submodule--helper subcommand must be "
"called with a subcommand"));
for (i = 0; i < ARRAY_SIZE(commands); i++)
if (!strcmp(argv[1], commands[i].cmd))
return commands[i].fn(argc - 1, argv + 1, prefix);
die(_("fatal: '%s' is not a valid submodule--helper "
"subcommand"), argv[1]);
}
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