return s;
}
+static int submodule_has_dirty_index(const struct submodule *sub)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ prepare_submodule_repo_env_no_git_dir(&cp.env_array);
+
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "diff-index", "--quiet",
+ "--cached", "HEAD", NULL);
+ cp.no_stdin = 1;
+ cp.no_stdout = 1;
+ cp.dir = sub->path;
+ if (start_command(&cp))
+ die("could not recurse into submodule '%s'", sub->path);
+
+ return finish_command(&cp);
+}
+
+static void submodule_reset_index(const char *path)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+ prepare_submodule_repo_env_no_git_dir(&cp.env_array);
+
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ cp.dir = path;
+
+ argv_array_pushf(&cp.args, "--super-prefix=%s%s/",
+ get_super_prefix_or_empty(), path);
+ argv_array_pushl(&cp.args, "read-tree", "-u", "--reset", NULL);
+
+ argv_array_push(&cp.args, EMPTY_TREE_SHA1_HEX);
+
+ if (run_command(&cp))
+ die("could not reset submodule index");
+}
+
+/**
+ * Moves a submodule at a given path from a given head to another new head.
+ * For edge cases (a submodule coming into existence or removing a submodule)
+ * pass NULL for old or new respectively.
+ */
+int submodule_move_head(const char *path,
+ const char *old,
+ const char *new,
+ unsigned flags)
+{
+ int ret = 0;
+ struct child_process cp = CHILD_PROCESS_INIT;
+ const struct submodule *sub;
+
+ sub = submodule_from_path(null_sha1, path);
+
+ if (!sub)
+ die("BUG: could not get submodule information for '%s'", path);
+
+ if (old && !(flags & SUBMODULE_MOVE_HEAD_FORCE)) {
+ /* Check if the submodule has a dirty index. */
+ if (submodule_has_dirty_index(sub))
+ return error(_("submodule '%s' has dirty index"), path);
+ }
+
+ if (!(flags & SUBMODULE_MOVE_HEAD_DRY_RUN)) {
+ if (old) {
+ if (!submodule_uses_gitfile(path))
+ absorb_git_dir_into_superproject("", path,
+ ABSORB_GITDIR_RECURSE_SUBMODULES);
+ } else {
+ struct strbuf sb = STRBUF_INIT;
+ strbuf_addf(&sb, "%s/modules/%s",
+ get_git_common_dir(), sub->name);
+ connect_work_tree_and_git_dir(path, sb.buf);
+ strbuf_release(&sb);
+
+ /* make sure the index is clean as well */
+ submodule_reset_index(path);
+ }
+ }
+
+ prepare_submodule_repo_env_no_git_dir(&cp.env_array);
+
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ cp.dir = path;
+
+ argv_array_pushf(&cp.args, "--super-prefix=%s%s/",
+ get_super_prefix_or_empty(), path);
+ argv_array_pushl(&cp.args, "read-tree", NULL);
+
+ if (flags & SUBMODULE_MOVE_HEAD_DRY_RUN)
+ argv_array_push(&cp.args, "-n");
+ else
+ argv_array_push(&cp.args, "-u");
+
+ if (flags & SUBMODULE_MOVE_HEAD_FORCE)
+ argv_array_push(&cp.args, "--reset");
+ else
+ argv_array_push(&cp.args, "-m");
+
+ argv_array_push(&cp.args, old ? old : EMPTY_TREE_SHA1_HEX);
+ argv_array_push(&cp.args, new ? new : EMPTY_TREE_SHA1_HEX);
+
+ if (run_command(&cp)) {
+ ret = -1;
+ goto out;
+ }
+
+ if (!(flags & SUBMODULE_MOVE_HEAD_DRY_RUN)) {
+ if (new) {
+ struct child_process cp1 = CHILD_PROCESS_INIT;
+ /* also set the HEAD accordingly */
+ cp1.git_cmd = 1;
+ cp1.no_stdin = 1;
+ cp1.dir = path;
+
+ argv_array_pushl(&cp1.args, "update-ref", "HEAD",
+ new ? new : EMPTY_TREE_SHA1_HEX, NULL);
+
+ if (run_command(&cp1)) {
+ ret = -1;
+ goto out;
+ }
+ } else {
+ struct strbuf sb = STRBUF_INIT;
+
+ strbuf_addf(&sb, "%s/.git", path);
+ unlink_or_warn(sb.buf);
+ strbuf_release(&sb);
+
+ if (is_empty_dir(path))
+ rmdir_or_warn(path);
+ }
+ }
+out:
+ return ret;
+}
+
static int find_first_merges(struct object_array *result, const char *path,
struct commit *a, struct commit *b)
{
/* If it is an actual gitfile, it doesn't need migration. */
return;
- real_old_git_dir = real_pathdup(old_git_dir);
+ real_old_git_dir = real_pathdup(old_git_dir, 1);
sub = submodule_from_path(null_sha1, path);
if (!sub)
new_git_dir = git_path("modules/%s", sub->name);
if (safe_create_leading_directories_const(new_git_dir) < 0)
die(_("could not create directory '%s'"), new_git_dir);
- real_new_git_dir = real_pathdup(new_git_dir);
+ real_new_git_dir = real_pathdup(new_git_dir, 1);
fprintf(stderr, _("Migrating git directory of '%s%s' from\n'%s' to\n'%s'\n"),
get_super_prefix_or_empty(), path,
git_path("modules/%s", sub->name));
} else {
/* Is it already absorbed into the superprojects git dir? */
- char *real_sub_git_dir = real_pathdup(sub_git_dir);
- char *real_common_git_dir = real_pathdup(get_git_common_dir());
+ char *real_sub_git_dir = real_pathdup(sub_git_dir, 1);
+ char *real_common_git_dir = real_pathdup(get_git_common_dir(), 1);
if (!starts_with(real_sub_git_dir, real_common_git_dir))
relocate_single_git_dir_into_superproject(prefix, path);
strbuf_release(&sb);
}
}
+
+const char *get_superproject_working_tree(void)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf sb = STRBUF_INIT;
+ const char *one_up = real_path_if_valid("../");
+ const char *cwd = xgetcwd();
+ const char *ret = NULL;
+ const char *subpath;
+ int code;
+ ssize_t len;
+
+ if (!is_inside_work_tree())
+ /*
+ * FIXME:
+ * We might have a superproject, but it is harder
+ * to determine.
+ */
+ return NULL;
+
+ if (!one_up)
+ return NULL;
+
+ subpath = relative_path(cwd, one_up, &sb);
+
+ prepare_submodule_repo_env(&cp.env_array);
+ argv_array_pop(&cp.env_array);
+
+ argv_array_pushl(&cp.args, "--literal-pathspecs", "-C", "..",
+ "ls-files", "-z", "--stage", "--full-name", "--",
+ subpath, NULL);
+ strbuf_reset(&sb);
+
+ cp.no_stdin = 1;
+ cp.no_stderr = 1;
+ cp.out = -1;
+ cp.git_cmd = 1;
+
+ if (start_command(&cp))
+ die(_("could not start ls-files in .."));
+
+ len = strbuf_read(&sb, cp.out, PATH_MAX);
+ close(cp.out);
+
+ if (starts_with(sb.buf, "160000")) {
+ int super_sub_len;
+ int cwd_len = strlen(cwd);
+ char *super_sub, *super_wt;
+
+ /*
+ * There is a superproject having this repo as a submodule.
+ * The format is <mode> SP <hash> SP <stage> TAB <full name> \0,
+ * We're only interested in the name after the tab.
+ */
+ super_sub = strchr(sb.buf, '\t') + 1;
+ super_sub_len = sb.buf + sb.len - super_sub - 1;
+
+ if (super_sub_len > cwd_len ||
+ strcmp(&cwd[cwd_len - super_sub_len], super_sub))
+ die (_("BUG: returned path string doesn't match cwd?"));
+
+ super_wt = xstrdup(cwd);
+ super_wt[cwd_len - super_sub_len] = '\0';
+
+ ret = real_path(super_wt);
+ free(super_wt);
+ }
+ strbuf_release(&sb);
+
+ code = finish_command(&cp);
+
+ if (code == 128)
+ /* '../' is not a git repository */
+ return NULL;
+ if (code == 0 && len == 0)
+ /* There is an unrelated git repository at '../' */
+ return NULL;
+ if (code)
+ die(_("ls-tree returned unexpected return code %d"), code);
+
+ return ret;
+}