#include "blob.h"
#include "thread-utils.h"
#include "quote.h"
+#include "remote.h"
+#include "worktree.h"
static int config_fetch_recurse_submodules = RECURSE_SUBMODULES_ON_DEMAND;
+static int config_update_recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
static int parallel_jobs = 1;
static struct string_list changed_submodule_paths = STRING_LIST_INIT_NODUP;
static int initialized_fetch_ref_tips;
-static struct sha1_array ref_tips_before_fetch;
-static struct sha1_array ref_tips_after_fetch;
+static struct oid_array ref_tips_before_fetch;
+static struct oid_array ref_tips_after_fetch;
/*
* The following flag is set if the .gitmodules file is unmerged. We then
}
}
+void gitmodules_config_sha1(const unsigned char *commit_sha1)
+{
+ struct strbuf rev = STRBUF_INIT;
+ unsigned char sha1[20];
+
+ if (gitmodule_sha1_from_commit(commit_sha1, sha1, &rev)) {
+ git_config_from_blob_sha1(submodule_config, rev.buf,
+ sha1, NULL);
+ }
+ strbuf_release(&rev);
+}
+
+/*
+ * NEEDSWORK: With the addition of different configuration options to determine
+ * if a submodule is of interests, the validity of this function's name comes
+ * into question. Once the dust has settled and more concrete terminology is
+ * decided upon, come up with a more proper name for this function. One
+ * potential candidate could be 'is_submodule_active()'.
+ *
+ * Determine if a submodule has been initialized at a given 'path'
+ */
+int is_submodule_initialized(const char *path)
+{
+ int ret = 0;
+ char *key = NULL;
+ char *value = NULL;
+ const struct string_list *sl;
+ const struct submodule *module = submodule_from_path(null_sha1, path);
+
+ /* early return if there isn't a path->module mapping */
+ if (!module)
+ return 0;
+
+ /* submodule.<name>.active is set */
+ key = xstrfmt("submodule.%s.active", module->name);
+ if (!git_config_get_bool(key, &ret)) {
+ free(key);
+ return ret;
+ }
+ free(key);
+
+ /* submodule.active is set */
+ sl = git_config_get_value_multi("submodule.active");
+ if (sl) {
+ struct pathspec ps;
+ struct argv_array args = ARGV_ARRAY_INIT;
+ const struct string_list_item *item;
+
+ for_each_string_list_item(item, sl) {
+ argv_array_push(&args, item->string);
+ }
+
+ parse_pathspec(&ps, 0, 0, NULL, args.argv);
+ ret = match_pathspec(&ps, path, strlen(path), 0, NULL, 1);
+
+ argv_array_clear(&args);
+ clear_pathspec(&ps);
+ return ret;
+ }
+
+ /* fallback to checking if the URL is set */
+ key = xstrfmt("submodule.%s.url", module->name);
+ ret = !git_config_get_string(key, &value);
+
+ free(value);
+ free(key);
+ return ret;
+}
+
+int is_submodule_populated_gently(const char *path, int *return_error_code)
+{
+ int ret = 0;
+ char *gitdir = xstrfmt("%s/.git", path);
+
+ if (resolve_gitdir_gently(gitdir, return_error_code))
+ ret = 1;
+
+ free(gitdir);
+ return ret;
+}
+
int parse_submodule_update_strategy(const char *value,
struct submodule_update_strategy *dst)
{
strbuf_release(&sb);
}
+static void prepare_submodule_repo_env_no_git_dir(struct argv_array *out)
+{
+ const char * const *var;
+
+ for (var = local_repo_env; *var; var++) {
+ if (strcmp(*var, CONFIG_DATA_ENVIRONMENT))
+ argv_array_push(out, *var);
+ }
+}
+
+void prepare_submodule_repo_env(struct argv_array *out)
+{
+ prepare_submodule_repo_env_no_git_dir(out);
+ argv_array_pushf(out, "%s=%s", GIT_DIR_ENVIRONMENT,
+ DEFAULT_GIT_DIR_ENVIRONMENT);
+}
+
/* Helper function to display the submodule header line prior to the full
* summary output. If it can locate the submodule objects directory it will
* attempt to lookup both the left and right commits and put them into the
config_fetch_recurse_submodules = value;
}
+void set_config_update_recurse_submodules(int value)
+{
+ config_update_recurse_submodules = value;
+}
+
+int should_update_submodules(void)
+{
+ return config_update_recurse_submodules == RECURSE_SUBMODULES_ON;
+}
+
+const struct submodule *submodule_from_ce(const struct cache_entry *ce)
+{
+ if (!S_ISGITLINK(ce->ce_mode))
+ return NULL;
+
+ if (!should_update_submodules())
+ return NULL;
+
+ return submodule_from_path(null_sha1, ce->name);
+}
+
static int has_remote(const char *refname, const struct object_id *oid,
int flags, void *cb_data)
{
return 1;
}
-static int append_sha1_to_argv(const unsigned char sha1[20], void *data)
+static int append_oid_to_argv(const struct object_id *oid, void *data)
{
struct argv_array *argv = data;
- argv_array_push(argv, sha1_to_hex(sha1));
+ argv_array_push(argv, oid_to_hex(oid));
return 0;
}
-static int check_has_commit(const unsigned char sha1[20], void *data)
+static int check_has_commit(const struct object_id *oid, void *data)
{
int *has_commit = data;
- if (!lookup_commit_reference(sha1))
+ if (!lookup_commit_reference(oid->hash))
*has_commit = 0;
return 0;
}
-static int submodule_has_commits(const char *path, struct sha1_array *commits)
+static int submodule_has_commits(const char *path, struct oid_array *commits)
{
int has_commit = 1;
if (add_submodule_odb(path))
return 0;
- sha1_array_for_each_unique(commits, check_has_commit, &has_commit);
+ oid_array_for_each_unique(commits, check_has_commit, &has_commit);
return has_commit;
}
-static int submodule_needs_pushing(const char *path, struct sha1_array *commits)
+static int submodule_needs_pushing(const char *path, struct oid_array *commits)
{
if (!submodule_has_commits(path, commits))
/*
int needs_pushing = 0;
argv_array_push(&cp.args, "rev-list");
- sha1_array_for_each_unique(commits, append_sha1_to_argv, &cp.args);
+ oid_array_for_each_unique(commits, append_oid_to_argv, &cp.args);
argv_array_pushl(&cp.args, "--not", "--remotes", "-n", "1" , NULL);
prepare_submodule_repo_env(&cp.env_array);
return 0;
}
-static struct sha1_array *submodule_commits(struct string_list *submodules,
+static struct oid_array *submodule_commits(struct string_list *submodules,
const char *path)
{
struct string_list_item *item;
item = string_list_insert(submodules, path);
if (item->util)
- return (struct sha1_array *) item->util;
+ return (struct oid_array *) item->util;
- /* NEEDSWORK: should we have sha1_array_init()? */
- item->util = xcalloc(1, sizeof(struct sha1_array));
- return (struct sha1_array *) item->util;
+ /* NEEDSWORK: should we have oid_array_init()? */
+ item->util = xcalloc(1, sizeof(struct oid_array));
+ return (struct oid_array *) item->util;
}
static void collect_submodules_from_diff(struct diff_queue_struct *q,
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
- struct sha1_array *commits;
+ struct oid_array *commits;
if (!S_ISGITLINK(p->two->mode))
continue;
commits = submodule_commits(submodules, p->two->path);
- sha1_array_append(commits, p->two->oid.hash);
+ oid_array_append(commits, &p->two->oid);
}
}
{
struct string_list_item *item;
for_each_string_list_item(item, submodules)
- sha1_array_clear((struct sha1_array *) item->util);
+ oid_array_clear((struct oid_array *) item->util);
string_list_clear(submodules, 1);
}
-int find_unpushed_submodules(struct sha1_array *commits,
+int find_unpushed_submodules(struct oid_array *commits,
const char *remotes_name, struct string_list *needs_pushing)
{
struct rev_info rev;
/* argv.argv[0] will be ignored by setup_revisions */
argv_array_push(&argv, "find_unpushed_submodules");
- sha1_array_for_each_unique(commits, append_sha1_to_argv, &argv);
+ oid_array_for_each_unique(commits, append_oid_to_argv, &argv);
argv_array_push(&argv, "--not");
argv_array_pushf(&argv, "--remotes=%s", remotes_name);
argv_array_clear(&argv);
for_each_string_list_item(submodule, &submodules) {
- struct sha1_array *commits = (struct sha1_array *) submodule->util;
+ struct oid_array *commits = (struct oid_array *) submodule->util;
if (submodule_needs_pushing(submodule->string, commits))
string_list_insert(needs_pushing, submodule->string);
return needs_pushing->nr;
}
-static int push_submodule(const char *path, int dry_run)
+static int push_submodule(const char *path,
+ const struct remote *remote,
+ const char **refspec, int refspec_nr,
+ const struct string_list *push_options,
+ int dry_run)
{
if (add_submodule_odb(path))
return 1;
if (dry_run)
argv_array_push(&cp.args, "--dry-run");
+ if (push_options && push_options->nr) {
+ const struct string_list_item *item;
+ for_each_string_list_item(item, push_options)
+ argv_array_pushf(&cp.args, "--push-option=%s",
+ item->string);
+ }
+
+ if (remote->origin != REMOTE_UNCONFIGURED) {
+ int i;
+ argv_array_push(&cp.args, remote->name);
+ for (i = 0; i < refspec_nr; i++)
+ argv_array_push(&cp.args, refspec[i]);
+ }
+
prepare_submodule_repo_env(&cp.env_array);
cp.git_cmd = 1;
cp.no_stdin = 1;
return 1;
}
-int push_unpushed_submodules(struct sha1_array *commits,
- const char *remotes_name,
+/*
+ * Perform a check in the submodule to see if the remote and refspec work.
+ * Die if the submodule can't be pushed.
+ */
+static void submodule_push_check(const char *path, const struct remote *remote,
+ const char **refspec, int refspec_nr)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+ int i;
+
+ argv_array_push(&cp.args, "submodule--helper");
+ argv_array_push(&cp.args, "push-check");
+ argv_array_push(&cp.args, remote->name);
+
+ for (i = 0; i < refspec_nr; i++)
+ argv_array_push(&cp.args, refspec[i]);
+
+ prepare_submodule_repo_env(&cp.env_array);
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ cp.no_stdout = 1;
+ cp.dir = path;
+
+ /*
+ * Simply indicate if 'submodule--helper push-check' failed.
+ * More detailed error information will be provided by the
+ * child process.
+ */
+ if (run_command(&cp))
+ die("process for submodule '%s' failed", path);
+}
+
+int push_unpushed_submodules(struct oid_array *commits,
+ const struct remote *remote,
+ const char **refspec, int refspec_nr,
+ const struct string_list *push_options,
int dry_run)
{
int i, ret = 1;
struct string_list needs_pushing = STRING_LIST_INIT_DUP;
- if (!find_unpushed_submodules(commits, remotes_name, &needs_pushing))
+ if (!find_unpushed_submodules(commits, remote->name, &needs_pushing))
return 1;
+ /*
+ * Verify that the remote and refspec can be propagated to all
+ * submodules. This check can be skipped if the remote and refspec
+ * won't be propagated due to the remote being unconfigured (e.g. a URL
+ * instead of a remote name).
+ */
+ if (remote->origin != REMOTE_UNCONFIGURED)
+ for (i = 0; i < needs_pushing.nr; i++)
+ submodule_push_check(needs_pushing.items[i].string,
+ remote, refspec, refspec_nr);
+
+ /* Actually push the submodules */
for (i = 0; i < needs_pushing.nr; i++) {
const char *path = needs_pushing.items[i].string;
fprintf(stderr, "Pushing submodule '%s'\n", path);
- if (!push_submodule(path, dry_run)) {
+ if (!push_submodule(path, remote, refspec, refspec_nr,
+ push_options, dry_run)) {
fprintf(stderr, "Unable to push submodule '%s'\n", path);
ret = 0;
}
static int add_sha1_to_array(const char *ref, const struct object_id *oid,
int flags, void *data)
{
- sha1_array_append(data, oid->hash);
+ oid_array_append(data, oid);
return 0;
}
-void check_for_new_submodule_commits(unsigned char new_sha1[20])
+void check_for_new_submodule_commits(struct object_id *oid)
{
if (!initialized_fetch_ref_tips) {
for_each_ref(add_sha1_to_array, &ref_tips_before_fetch);
initialized_fetch_ref_tips = 1;
}
- sha1_array_append(&ref_tips_after_fetch, new_sha1);
+ oid_array_append(&ref_tips_after_fetch, oid);
}
-static int add_sha1_to_argv(const unsigned char sha1[20], void *data)
+static int add_oid_to_argv(const struct object_id *oid, void *data)
{
- argv_array_push(data, sha1_to_hex(sha1));
+ argv_array_push(data, oid_to_hex(oid));
return 0;
}
init_revisions(&rev, NULL);
argv_array_push(&argv, "--"); /* argv[0] program name */
- sha1_array_for_each_unique(&ref_tips_after_fetch,
- add_sha1_to_argv, &argv);
+ oid_array_for_each_unique(&ref_tips_after_fetch,
+ add_oid_to_argv, &argv);
argv_array_push(&argv, "--not");
- sha1_array_for_each_unique(&ref_tips_before_fetch,
- add_sha1_to_argv, &argv);
+ oid_array_for_each_unique(&ref_tips_before_fetch,
+ add_oid_to_argv, &argv);
setup_revisions(argv.argc, argv.argv, &rev, NULL);
if (prepare_revision_walk(&rev))
die("revision walk setup failed");
}
argv_array_clear(&argv);
- sha1_array_clear(&ref_tips_before_fetch);
- sha1_array_clear(&ref_tips_after_fetch);
+ oid_array_clear(&ref_tips_before_fetch);
+ oid_array_clear(&ref_tips_after_fetch);
initialized_fetch_ref_tips = 0;
}
unsigned is_submodule_modified(const char *path, int ignore_untracked)
{
- ssize_t len;
struct child_process cp = CHILD_PROCESS_INIT;
- const char *argv[] = {
- "status",
- "--porcelain",
- NULL,
- NULL,
- };
struct strbuf buf = STRBUF_INIT;
+ FILE *fp;
unsigned dirty_submodule = 0;
- const char *line, *next_line;
const char *git_dir;
+ int ignore_cp_exit_code = 0;
strbuf_addf(&buf, "%s/.git", path);
git_dir = read_gitfile(buf.buf);
if (!git_dir)
git_dir = buf.buf;
- if (!is_directory(git_dir)) {
+ if (!is_git_directory(git_dir)) {
+ if (is_directory(git_dir))
+ die(_("'%s' not recognized as a git repository"), git_dir);
strbuf_release(&buf);
/* The submodule is not checked out, so it is not modified */
return 0;
-
}
strbuf_reset(&buf);
+ argv_array_pushl(&cp.args, "status", "--porcelain=2", NULL);
if (ignore_untracked)
- argv[2] = "-uno";
+ argv_array_push(&cp.args, "-uno");
- cp.argv = argv;
prepare_submodule_repo_env(&cp.env_array);
cp.git_cmd = 1;
cp.no_stdin = 1;
cp.out = -1;
cp.dir = path;
if (start_command(&cp))
- die("Could not run 'git status --porcelain' in submodule %s", path);
+ die("Could not run 'git status --porcelain=2' in submodule %s", path);
- len = strbuf_read(&buf, cp.out, 1024);
- line = buf.buf;
- while (len > 2) {
- if ((line[0] == '?') && (line[1] == '?')) {
+ fp = xfdopen(cp.out, "r");
+ while (strbuf_getwholeline(&buf, fp, '\n') != EOF) {
+ /* regular untracked files */
+ if (buf.buf[0] == '?')
dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED;
- if (dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
- break;
- } else {
- dirty_submodule |= DIRTY_SUBMODULE_MODIFIED;
- if (ignore_untracked ||
- (dirty_submodule & DIRTY_SUBMODULE_UNTRACKED))
- break;
+
+ if (buf.buf[0] == 'u' ||
+ buf.buf[0] == '1' ||
+ buf.buf[0] == '2') {
+ /* T = line type, XY = status, SSSS = submodule state */
+ if (buf.len < strlen("T XY SSSS"))
+ die("BUG: invalid status --porcelain=2 line %s",
+ buf.buf);
+
+ if (buf.buf[5] == 'S' && buf.buf[8] == 'U')
+ /* nested untracked file */
+ dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED;
+
+ if (buf.buf[0] == 'u' ||
+ buf.buf[0] == '2' ||
+ memcmp(buf.buf + 5, "S..U", 4))
+ /* other change */
+ dirty_submodule |= DIRTY_SUBMODULE_MODIFIED;
}
- next_line = strchr(line, '\n');
- if (!next_line)
+
+ if ((dirty_submodule & DIRTY_SUBMODULE_MODIFIED) &&
+ ((dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ||
+ ignore_untracked)) {
+ /*
+ * We're not interested in any further information from
+ * the child any more, neither output nor its exit code.
+ */
+ ignore_cp_exit_code = 1;
break;
- next_line++;
- len -= (next_line - line);
- line = next_line;
+ }
}
- close(cp.out);
+ fclose(fp);
- if (finish_command(&cp))
- die("'git status --porcelain' failed in submodule %s", path);
+ if (finish_command(&cp) && !ignore_cp_exit_code)
+ die("'git status --porcelain=2' failed in submodule %s", path);
strbuf_release(&buf);
return dirty_submodule;
return 1;
}
-int ok_to_remove_submodule(const char *path)
+/*
+ * Check if it is a bad idea to remove a submodule, i.e. if we'd lose data
+ * when doing so.
+ *
+ * Return 1 if we'd lose data, return 0 if the removal is fine,
+ * and negative values for errors.
+ */
+int bad_to_remove_submodule(const char *path, unsigned flags)
{
ssize_t len;
struct child_process cp = CHILD_PROCESS_INIT;
- const char *argv[] = {
- "status",
- "--porcelain",
- "-u",
- "--ignore-submodules=none",
- NULL,
- };
struct strbuf buf = STRBUF_INIT;
- int ok_to_remove = 1;
+ int ret = 0;
if (!file_exists(path) || is_empty_dir(path))
- return 1;
+ return 0;
if (!submodule_uses_gitfile(path))
- return 0;
+ return 1;
+
+ argv_array_pushl(&cp.args, "status", "--porcelain",
+ "--ignore-submodules=none", NULL);
+
+ if (flags & SUBMODULE_REMOVAL_IGNORE_UNTRACKED)
+ argv_array_push(&cp.args, "-uno");
+ else
+ argv_array_push(&cp.args, "-uall");
+
+ if (!(flags & SUBMODULE_REMOVAL_IGNORE_IGNORED_UNTRACKED))
+ argv_array_push(&cp.args, "--ignored");
- cp.argv = argv;
prepare_submodule_repo_env(&cp.env_array);
cp.git_cmd = 1;
cp.no_stdin = 1;
cp.out = -1;
cp.dir = path;
- if (start_command(&cp))
- die("Could not run 'git status --porcelain -uall --ignore-submodules=none' in submodule %s", path);
+ if (start_command(&cp)) {
+ if (flags & SUBMODULE_REMOVAL_DIE_ON_ERROR)
+ die(_("could not start 'git status' in submodule '%s'"),
+ path);
+ ret = -1;
+ goto out;
+ }
len = strbuf_read(&buf, cp.out, 1024);
if (len > 2)
- ok_to_remove = 0;
+ ret = 1;
close(cp.out);
- if (finish_command(&cp))
- die("'git status --porcelain -uall --ignore-submodules=none' failed in submodule %s", path);
-
+ if (finish_command(&cp)) {
+ if (flags & SUBMODULE_REMOVAL_DIE_ON_ERROR)
+ die(_("could not run 'git status' in submodule '%s'"),
+ path);
+ ret = -1;
+ }
+out:
strbuf_release(&buf);
- return ok_to_remove;
+ return ret;
+}
+
+static const char *get_super_prefix_or_empty(void)
+{
+ const char *s = get_super_prefix();
+ if (!s)
+ s = "";
+ 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, 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,
memset(&rev_opts, 0, sizeof(rev_opts));
/* get all revisions that merge commit a */
- snprintf(merged_revision, sizeof(merged_revision), "^%s",
+ xsnprintf(merged_revision, sizeof(merged_revision), "^%s",
oid_to_hex(&a->object.oid));
init_revisions(&revs, NULL);
rev_opts.submodule = path;
return 0;
}
-/* Update gitfile and core.worktree setting to connect work tree and git dir */
-void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
+int parallel_submodules(void)
{
- struct strbuf file_name = STRBUF_INIT;
- struct strbuf rel_path = STRBUF_INIT;
- const char *real_work_tree = xstrdup(real_path(work_tree));
-
- /* Update gitfile */
- strbuf_addf(&file_name, "%s/.git", work_tree);
- write_file(file_name.buf, "gitdir: %s",
- relative_path(git_dir, real_work_tree, &rel_path));
-
- /* Update core.worktree setting */
- strbuf_reset(&file_name);
- strbuf_addf(&file_name, "%s/config", git_dir);
- git_config_set_in_file(file_name.buf, "core.worktree",
- relative_path(real_work_tree, git_dir,
- &rel_path));
-
- strbuf_release(&file_name);
- strbuf_release(&rel_path);
- free((void *)real_work_tree);
+ return parallel_jobs;
}
-int parallel_submodules(void)
+/*
+ * Embeds a single submodules git directory into the superprojects git dir,
+ * non recursively.
+ */
+static void relocate_single_git_dir_into_superproject(const char *prefix,
+ const char *path)
{
- return parallel_jobs;
+ char *old_git_dir = NULL, *real_old_git_dir = NULL, *real_new_git_dir = NULL;
+ const char *new_git_dir;
+ const struct submodule *sub;
+
+ if (submodule_uses_worktrees(path))
+ die(_("relocate_gitdir for submodule '%s' with "
+ "more than one worktree not supported"), path);
+
+ old_git_dir = xstrfmt("%s/.git", path);
+ if (read_gitfile(old_git_dir))
+ /* If it is an actual gitfile, it doesn't need migration. */
+ return;
+
+ real_old_git_dir = real_pathdup(old_git_dir, 1);
+
+ sub = submodule_from_path(null_sha1, path);
+ if (!sub)
+ die(_("could not lookup name for submodule '%s'"), path);
+
+ 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, 1);
+
+ fprintf(stderr, _("Migrating git directory of '%s%s' from\n'%s' to\n'%s'\n"),
+ get_super_prefix_or_empty(), path,
+ real_old_git_dir, real_new_git_dir);
+
+ relocate_gitdir(path, real_old_git_dir, real_new_git_dir);
+
+ free(old_git_dir);
+ free(real_old_git_dir);
+ free(real_new_git_dir);
}
-void prepare_submodule_repo_env(struct argv_array *out)
+/*
+ * Migrate the git directory of the submodule given by path from
+ * having its git directory within the working tree to the git dir nested
+ * in its superprojects git dir under modules/.
+ */
+void absorb_git_dir_into_superproject(const char *prefix,
+ const char *path,
+ unsigned flags)
{
- const char * const *var;
+ int err_code;
+ const char *sub_git_dir;
+ struct strbuf gitdir = STRBUF_INIT;
+ strbuf_addf(&gitdir, "%s/.git", path);
+ sub_git_dir = resolve_gitdir_gently(gitdir.buf, &err_code);
+
+ /* Not populated? */
+ if (!sub_git_dir) {
+ const struct submodule *sub;
+
+ if (err_code == READ_GITFILE_ERR_STAT_FAILED) {
+ /* unpopulated as expected */
+ strbuf_release(&gitdir);
+ return;
+ }
- for (var = local_repo_env; *var; var++) {
- if (strcmp(*var, CONFIG_DATA_ENVIRONMENT))
- argv_array_push(out, *var);
+ if (err_code != READ_GITFILE_ERR_NOT_A_REPO)
+ /* We don't know what broke here. */
+ read_gitfile_error_die(err_code, path, NULL);
+
+ /*
+ * Maybe populated, but no git directory was found?
+ * This can happen if the superproject is a submodule
+ * itself and was just absorbed. The absorption of the
+ * superproject did not rewrite the git file links yet,
+ * fix it now.
+ */
+ sub = submodule_from_path(null_sha1, path);
+ if (!sub)
+ die(_("could not lookup name for submodule '%s'"), path);
+ connect_work_tree_and_git_dir(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, 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);
+
+ free(real_sub_git_dir);
+ free(real_common_git_dir);
+ }
+ strbuf_release(&gitdir);
+
+ if (flags & ABSORB_GITDIR_RECURSE_SUBMODULES) {
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf sb = STRBUF_INIT;
+
+ if (flags & ~ABSORB_GITDIR_RECURSE_SUBMODULES)
+ die("BUG: we don't know how to pass the flags down?");
+
+ strbuf_addstr(&sb, get_super_prefix_or_empty());
+ strbuf_addstr(&sb, path);
+ strbuf_addch(&sb, '/');
+
+ cp.dir = path;
+ cp.git_cmd = 1;
+ cp.no_stdin = 1;
+ argv_array_pushl(&cp.args, "--super-prefix", sb.buf,
+ "submodule--helper",
+ "absorb-git-dirs", NULL);
+ prepare_submodule_repo_env(&cp.env_array);
+ if (run_command(&cp))
+ die(_("could not recurse into submodule '%s'"), 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);
}
- argv_array_push(out, "GIT_DIR=.git");
+ 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;
+}
+
+int submodule_to_gitdir(struct strbuf *buf, const char *submodule)
+{
+ const struct submodule *sub;
+ const char *git_dir;
+ int ret = 0;
+
+ strbuf_reset(buf);
+ strbuf_addstr(buf, submodule);
+ strbuf_complete(buf, '/');
+ strbuf_addstr(buf, ".git");
+
+ git_dir = read_gitfile(buf->buf);
+ if (git_dir) {
+ strbuf_reset(buf);
+ strbuf_addstr(buf, git_dir);
+ }
+ if (!is_git_directory(buf->buf)) {
+ gitmodules_config();
+ sub = submodule_from_path(null_sha1, submodule);
+ if (!sub) {
+ ret = -1;
+ goto cleanup;
+ }
+ strbuf_reset(buf);
+ strbuf_git_path(buf, "%s/%s", "modules", sub->name);
+ }
+
+cleanup:
+ return ret;
}