зеркало из https://github.com/microsoft/git.git
submodule: port submodule subcommand 'status' from shell to C
This aims to make git-submodule 'status' a built-in. Hence, the function cmd_status() is ported from shell to C. This is done by introducing four functions: module_status(), submodule_status_cb(), submodule_status() and print_status(). The function module_status() acts as the front-end of the subcommand. It parses subcommand's options and then calls the function module_list_compute() for computing the list of submodules. Then this functions calls for_each_listed_submodule() looping through the list obtained. Then for_each_listed_submodule() calls submodule_status_cb() for each of the submodule in its list. The function submodule_status_cb() calls submodule_status() after passing appropriate arguments to the funciton. Function submodule_status() is responsible for generating the status each submodule it is called for, and then calls print_status(). Finally, the function print_status() handles the printing of submodule's status. Function set_name_rev() is also ported from git-submodule to the submodule--helper builtin function compute_rev_name(), which now generates the value of the revision name as required. Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Stefan Beller <sbeller@google.com> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Prathamesh Chavan
Junio C Hamano
Родитель
9f580a6260
Коммит
a9f8a37584
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@ -13,8 +13,13 @@
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#include "remote.h"
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#include "refs.h"
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#include "connect.h"
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#include "revision.h"
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#include "diffcore.h"
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#include "diff.h"
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#define OPT_QUIET (1 << 0)
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#define OPT_CACHED (1 << 1)
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#define OPT_RECURSIVE (1 << 2)
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typedef void (*each_submodule_fn)(const struct cache_entry *list_item,
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void *cb_data);
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@ -245,6 +250,44 @@ static char *get_submodule_displaypath(const char *path, const char *prefix)
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}
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}
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static char *compute_rev_name(const char *sub_path, const char* object_id)
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{
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struct strbuf sb = STRBUF_INIT;
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const char ***d;
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static const char *describe_bare[] = { NULL };
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static const char *describe_tags[] = { "--tags", NULL };
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static const char *describe_contains[] = { "--contains", NULL };
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static const char *describe_all_always[] = { "--all", "--always", NULL };
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static const char **describe_argv[] = { describe_bare, describe_tags,
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describe_contains,
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describe_all_always, NULL };
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for (d = describe_argv; *d; d++) {
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struct child_process cp = CHILD_PROCESS_INIT;
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prepare_submodule_repo_env(&cp.env_array);
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cp.dir = sub_path;
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cp.git_cmd = 1;
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cp.no_stderr = 1;
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argv_array_push(&cp.args, "describe");
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argv_array_pushv(&cp.args, *d);
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argv_array_push(&cp.args, object_id);
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if (!capture_command(&cp, &sb, 0)) {
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strbuf_strip_suffix(&sb, "\n");
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return strbuf_detach(&sb, NULL);
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}
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}
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strbuf_release(&sb);
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return NULL;
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}
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struct module_list {
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const struct cache_entry **entries;
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int alloc, nr;
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@ -504,6 +547,160 @@ static int module_init(int argc, const char **argv, const char *prefix)
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return 0;
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}
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struct status_cb {
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const char *prefix;
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unsigned int flags;
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};
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#define STATUS_CB_INIT { NULL, 0 }
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static void print_status(unsigned int flags, char state, const char *path,
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const struct object_id *oid, const char *displaypath)
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{
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if (flags & OPT_QUIET)
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return;
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printf("%c%s %s", state, oid_to_hex(oid), displaypath);
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if (state == ' ' || state == '+')
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printf(" (%s)", compute_rev_name(path, oid_to_hex(oid)));
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printf("\n");
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}
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static int handle_submodule_head_ref(const char *refname,
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const struct object_id *oid, int flags,
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void *cb_data)
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{
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struct object_id *output = cb_data;
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if (oid)
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oidcpy(output, oid);
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return 0;
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}
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static void status_submodule(const char *path, const struct object_id *ce_oid,
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unsigned int ce_flags, const char *prefix,
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unsigned int flags)
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{
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char *displaypath;
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struct argv_array diff_files_args = ARGV_ARRAY_INIT;
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struct rev_info rev;
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int diff_files_result;
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if (!submodule_from_path(&null_oid, path))
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die(_("no submodule mapping found in .gitmodules for path '%s'"),
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path);
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displaypath = get_submodule_displaypath(path, prefix);
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if ((CE_STAGEMASK & ce_flags) >> CE_STAGESHIFT) {
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print_status(flags, 'U', path, &null_oid, displaypath);
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goto cleanup;
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}
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if (!is_submodule_active(the_repository, path)) {
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print_status(flags, '-', path, ce_oid, displaypath);
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goto cleanup;
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}
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argv_array_pushl(&diff_files_args, "diff-files",
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"--ignore-submodules=dirty", "--quiet", "--",
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path, NULL);
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git_config(git_diff_basic_config, NULL);
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init_revisions(&rev, prefix);
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rev.abbrev = 0;
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diff_files_args.argc = setup_revisions(diff_files_args.argc,
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diff_files_args.argv,
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&rev, NULL);
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diff_files_result = run_diff_files(&rev, 0);
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if (!diff_result_code(&rev.diffopt, diff_files_result)) {
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print_status(flags, ' ', path, ce_oid,
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displaypath);
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} else if (!(flags & OPT_CACHED)) {
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struct object_id oid;
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if (refs_head_ref(get_submodule_ref_store(path),
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handle_submodule_head_ref, &oid))
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die(_("could not resolve HEAD ref inside the"
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"submodule '%s'"), path);
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print_status(flags, '+', path, &oid, displaypath);
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} else {
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print_status(flags, '+', path, ce_oid, displaypath);
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}
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if (flags & OPT_RECURSIVE) {
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struct child_process cpr = CHILD_PROCESS_INIT;
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cpr.git_cmd = 1;
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cpr.dir = path;
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prepare_submodule_repo_env(&cpr.env_array);
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argv_array_push(&cpr.args, "--super-prefix");
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argv_array_pushf(&cpr.args, "%s/", displaypath);
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argv_array_pushl(&cpr.args, "submodule--helper", "status",
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"--recursive", NULL);
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if (flags & OPT_CACHED)
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argv_array_push(&cpr.args, "--cached");
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if (flags & OPT_QUIET)
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argv_array_push(&cpr.args, "--quiet");
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if (run_command(&cpr))
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die(_("failed to recurse into submodule '%s'"), path);
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}
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cleanup:
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argv_array_clear(&diff_files_args);
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free(displaypath);
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}
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static void status_submodule_cb(const struct cache_entry *list_item,
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void *cb_data)
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{
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struct status_cb *info = cb_data;
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status_submodule(list_item->name, &list_item->oid, list_item->ce_flags,
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info->prefix, info->flags);
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}
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static int module_status(int argc, const char **argv, const char *prefix)
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{
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struct status_cb info = STATUS_CB_INIT;
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struct pathspec pathspec;
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struct module_list list = MODULE_LIST_INIT;
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int quiet = 0;
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struct option module_status_options[] = {
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OPT__QUIET(&quiet, N_("Suppress submodule status output")),
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OPT_BIT(0, "cached", &info.flags, N_("Use commit stored in the index instead of the one stored in the submodule HEAD"), OPT_CACHED),
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OPT_BIT(0, "recursive", &info.flags, N_("recurse into nested submodules"), OPT_RECURSIVE),
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OPT_END()
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};
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const char *const git_submodule_helper_usage[] = {
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N_("git submodule status [--quiet] [--cached] [--recursive] [<path>...]"),
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NULL
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};
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argc = parse_options(argc, argv, prefix, module_status_options,
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git_submodule_helper_usage, 0);
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if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0)
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return 1;
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info.prefix = prefix;
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if (quiet)
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info.flags |= OPT_QUIET;
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for_each_listed_submodule(&list, status_submodule_cb, &info);
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return 0;
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}
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static int module_name(int argc, const char **argv, const char *prefix)
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{
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const struct submodule *sub;
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@ -1301,6 +1498,7 @@ static struct cmd_struct commands[] = {
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{"resolve-relative-url", resolve_relative_url, 0},
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{"resolve-relative-url-test", resolve_relative_url_test, 0},
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{"init", module_init, SUPPORT_SUPER_PREFIX},
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{"status", module_status, SUPPORT_SUPER_PREFIX},
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{"remote-branch", resolve_remote_submodule_branch, 0},
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{"push-check", push_check, 0},
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{"absorb-git-dirs", absorb_git_dirs, SUPPORT_SUPER_PREFIX},
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@ -758,18 +758,6 @@ cmd_update()
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}
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}
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set_name_rev () {
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revname=$( (
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sanitize_submodule_env
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cd "$1" && {
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git describe "$2" 2>/dev/null ||
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git describe --tags "$2" 2>/dev/null ||
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git describe --contains "$2" 2>/dev/null ||
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git describe --all --always "$2"
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}
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) )
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test -z "$revname" || revname=" ($revname)"
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}
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#
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# Show commit summary for submodules in index or working tree
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#
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@ -1016,54 +1004,7 @@ cmd_status()
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shift
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done
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{
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git submodule--helper list --prefix "$wt_prefix" "$@" ||
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echo "#unmatched" $?
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} |
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while read -r mode sha1 stage sm_path
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do
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die_if_unmatched "$mode" "$sha1"
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name=$(git submodule--helper name "$sm_path") || exit
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displaypath=$(git submodule--helper relative-path "$prefix$sm_path" "$wt_prefix")
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if test "$stage" = U
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then
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say "U$sha1 $displaypath"
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continue
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fi
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if ! git submodule--helper is-active "$sm_path" ||
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{
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! test -d "$sm_path"/.git &&
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! test -f "$sm_path"/.git
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}
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then
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say "-$sha1 $displaypath"
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continue;
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fi
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if git diff-files --ignore-submodules=dirty --quiet -- "$sm_path"
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then
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set_name_rev "$sm_path" "$sha1"
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say " $sha1 $displaypath$revname"
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else
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if test -z "$cached"
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then
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sha1=$(sanitize_submodule_env; cd "$sm_path" && git rev-parse --verify HEAD)
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fi
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set_name_rev "$sm_path" "$sha1"
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say "+$sha1 $displaypath$revname"
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fi
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if test -n "$recursive"
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then
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(
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prefix="$displaypath/"
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sanitize_submodule_env
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wt_prefix=
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cd "$sm_path" &&
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eval cmd_status
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) ||
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die "$(eval_gettext "Failed to recurse into submodule path '\$sm_path'")"
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fi
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done
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git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper status ${GIT_QUIET:+--quiet} ${cached:+--cached} ${recursive:+--recursive} "$@"
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}
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#
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# Sync remote urls for submodules
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