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-rw-r--r--submodule.c221
1 files changed, 142 insertions, 79 deletions
diff --git a/submodule.c b/submodule.c
index 9767ba9893..c689070524 100644
--- a/submodule.c
+++ b/submodule.c
@@ -33,7 +33,7 @@ static struct oid_array ref_tips_after_fetch;
* will be disabled because we can't guess what might be configured in
* .gitmodules unless the user resolves the conflict.
*/
-int is_gitmodules_unmerged(const struct index_state *istate)
+int is_gitmodules_unmerged(struct index_state *istate)
{
int pos = index_name_pos(istate, GITMODULES_FILE, strlen(GITMODULES_FILE));
if (pos < 0) { /* .gitmodules not found or isn't merged */
@@ -113,7 +113,7 @@ int update_path_in_gitmodules(const char *oldpath, const char *newpath)
if (is_gitmodules_unmerged(the_repository->index))
die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first"));
- submodule = submodule_from_path(the_repository, &null_oid, oldpath);
+ submodule = submodule_from_path(the_repository, null_oid(), oldpath);
if (!submodule || !submodule->name) {
warning(_("Could not find section in .gitmodules where path=%s"), oldpath);
return -1;
@@ -142,7 +142,7 @@ int remove_path_from_gitmodules(const char *path)
if (is_gitmodules_unmerged(the_repository->index))
die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first"));
- submodule = submodule_from_path(the_repository, &null_oid, path);
+ submodule = submodule_from_path(the_repository, null_oid(), path);
if (!submodule || !submodule->name) {
warning(_("Could not find section in .gitmodules where path=%s"), path);
return -1;
@@ -165,6 +165,8 @@ void stage_updated_gitmodules(struct index_state *istate)
die(_("staging updated .gitmodules failed"));
}
+static struct string_list added_submodule_odb_paths = STRING_LIST_INIT_NODUP;
+
/* TODO: remove this function, use repo_submodule_init instead. */
int add_submodule_odb(const char *path)
{
@@ -178,17 +180,41 @@ int add_submodule_odb(const char *path)
ret = -1;
goto done;
}
- add_to_alternates_memory(objects_directory.buf);
+ string_list_insert(&added_submodule_odb_paths,
+ strbuf_detach(&objects_directory, NULL));
done:
strbuf_release(&objects_directory);
return ret;
}
+void add_submodule_odb_by_path(const char *path)
+{
+ string_list_insert(&added_submodule_odb_paths, xstrdup(path));
+}
+
+int register_all_submodule_odb_as_alternates(void)
+{
+ int i;
+ int ret = added_submodule_odb_paths.nr;
+
+ for (i = 0; i < added_submodule_odb_paths.nr; i++)
+ add_to_alternates_memory(added_submodule_odb_paths.items[i].string);
+ if (ret) {
+ string_list_clear(&added_submodule_odb_paths, 0);
+ trace2_data_intmax("submodule", the_repository,
+ "register_all_submodule_odb_as_alternates/registered", ret);
+ if (git_env_bool("GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB", 0))
+ BUG("register_all_submodule_odb_as_alternates() called");
+ }
+ return ret;
+}
+
void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
const char *path)
{
const struct submodule *submodule = submodule_from_path(the_repository,
- &null_oid, path);
+ null_oid(),
+ path);
if (submodule) {
const char *ignore;
char *key;
@@ -236,6 +262,11 @@ int option_parse_recurse_submodules_worktree_updater(const struct option *opt,
/*
* Determine if a submodule has been initialized at a given 'path'
*/
+/*
+ * NEEDSWORK: Emit a warning if submodule.active exists, but is valueless,
+ * ie, the config looks like: "[submodule] active\n".
+ * Since that is an invalid pathspec, we should inform the user.
+ */
int is_submodule_active(struct repository *repo, const char *path)
{
int ret = 0;
@@ -244,7 +275,7 @@ int is_submodule_active(struct repository *repo, const char *path)
const struct string_list *sl;
const struct submodule *module;
- module = submodule_from_path(repo, &null_oid, path);
+ module = submodule_from_path(repo, null_oid(), path);
/* early return if there isn't a path->module mapping */
if (!module)
@@ -301,7 +332,7 @@ int is_submodule_populated_gently(const char *path, int *return_error_code)
/*
* Dies if the provided 'prefix' corresponds to an unpopulated submodule
*/
-void die_in_unpopulated_submodule(const struct index_state *istate,
+void die_in_unpopulated_submodule(struct index_state *istate,
const char *prefix)
{
int i, prefixlen;
@@ -331,7 +362,7 @@ void die_in_unpopulated_submodule(const struct index_state *istate,
/*
* Dies if any paths in the provided pathspec descends into a submodule
*/
-void die_path_inside_submodule(const struct index_state *istate,
+void die_path_inside_submodule(struct index_state *istate,
const struct pathspec *ps)
{
int i, j;
@@ -483,35 +514,19 @@ static void print_submodule_diff_summary(struct repository *r, struct rev_info *
strbuf_release(&sb);
}
-static void prepare_submodule_repo_env_no_git_dir(struct strvec *out)
-{
- const char * const *var;
-
- for (var = local_repo_env; *var; var++) {
- if (strcmp(*var, CONFIG_DATA_ENVIRONMENT))
- strvec_push(out, *var);
- }
-}
-
void prepare_submodule_repo_env(struct strvec *out)
{
- prepare_submodule_repo_env_no_git_dir(out);
- strvec_pushf(out, "%s=%s", GIT_DIR_ENVIRONMENT,
- DEFAULT_GIT_DIR_ENVIRONMENT);
+ prepare_other_repo_env(out, DEFAULT_GIT_DIR_ENVIRONMENT);
}
static void prepare_submodule_repo_env_in_gitdir(struct strvec *out)
{
- prepare_submodule_repo_env_no_git_dir(out);
- strvec_pushf(out, "%s=.", GIT_DIR_ENVIRONMENT);
+ prepare_other_repo_env(out, ".");
}
/*
* Initialize a repository struct for a submodule based on the provided 'path'.
*
- * Unlike repo_submodule_init, this tolerates submodules not present
- * in .gitmodules. This function exists only to preserve historical behavior,
- *
* Returns the repository struct on success,
* NULL when the submodule is not present.
*/
@@ -709,8 +724,20 @@ void show_submodule_inline_diff(struct diff_options *o, const char *path,
strvec_push(&cp.args, oid_to_hex(new_oid));
prepare_submodule_repo_env(&cp.env_array);
- if (start_command(&cp))
+
+ if (!is_directory(path)) {
+ /* fall back to absorbed git dir, if any */
+ if (!sub)
+ goto done;
+ cp.dir = sub->gitdir;
+ strvec_push(&cp.env_array, GIT_DIR_ENVIRONMENT "=.");
+ strvec_push(&cp.env_array, GIT_WORK_TREE_ENVIRONMENT "=.");
+ }
+
+ if (start_command(&cp)) {
diff_emit_submodule_error(o, "(diff failed)\n");
+ goto done;
+ }
while (strbuf_getwholeline_fd(&sb, cp.out, '\n') != EOF)
diff_emit_submodule_pipethrough(o, sb.buf, sb.len);
@@ -745,7 +772,7 @@ const struct submodule *submodule_from_ce(const struct cache_entry *ce)
if (!should_update_submodules())
return NULL;
- return submodule_from_path(the_repository, &null_oid, ce->name);
+ return submodule_from_path(the_repository, null_oid(), ce->name);
}
static struct oid_array *submodule_commits(struct string_list *submodules,
@@ -903,23 +930,33 @@ struct has_commit_data {
static int check_has_commit(const struct object_id *oid, void *data)
{
struct has_commit_data *cb = data;
+ struct repository subrepo;
+ enum object_type type;
- enum object_type type = oid_object_info(cb->repo, oid, NULL);
+ if (repo_submodule_init(&subrepo, cb->repo, cb->path, null_oid())) {
+ cb->result = 0;
+ goto cleanup;
+ }
+
+ type = oid_object_info(&subrepo, oid, NULL);
switch (type) {
case OBJ_COMMIT:
- return 0;
+ goto cleanup;
case OBJ_BAD:
/*
* Object is missing or invalid. If invalid, an error message
* has already been printed.
*/
cb->result = 0;
- return 0;
+ goto cleanup;
default:
die(_("submodule entry '%s' (%s) is a %s, not a commit"),
cb->path, oid_to_hex(oid), type_name(type));
}
+cleanup:
+ repo_clear(&subrepo);
+ return 0;
}
static int submodule_has_commits(struct repository *r,
@@ -1037,7 +1074,7 @@ int find_unpushed_submodules(struct repository *r,
const struct submodule *submodule;
const char *path = NULL;
- submodule = submodule_from_name(r, &null_oid, name->string);
+ submodule = submodule_from_name(r, null_oid(), name->string);
if (submodule)
path = submodule->path;
else
@@ -1224,7 +1261,7 @@ static void calculate_changed_submodule_paths(struct repository *r,
const struct submodule *submodule;
const char *path = NULL;
- submodule = submodule_from_name(r, &null_oid, name->string);
+ submodule = submodule_from_name(r, null_oid(), name->string);
if (submodule)
path = submodule->path;
else
@@ -1293,9 +1330,11 @@ struct submodule_parallel_fetch {
struct strbuf submodules_with_errors;
};
-#define SPF_INIT {0, STRVEC_INIT, NULL, NULL, 0, 0, 0, 0, \
- STRING_LIST_INIT_DUP, \
- NULL, 0, 0, STRBUF_INIT}
+#define SPF_INIT { \
+ .args = STRVEC_INIT, \
+ .changed_submodule_names = STRING_LIST_INIT_DUP, \
+ .submodules_with_errors = STRBUF_INIT, \
+}
static int get_fetch_recurse_config(const struct submodule *submodule,
struct submodule_parallel_fetch *spf)
@@ -1361,7 +1400,7 @@ static struct fetch_task *fetch_task_create(struct repository *r,
struct fetch_task *task = xmalloc(sizeof(*task));
memset(task, 0, sizeof(*task));
- task->sub = submodule_from_path(r, &null_oid, path);
+ task->sub = submodule_from_path(r, null_oid(), path);
if (!task->sub) {
/*
* No entry in .gitmodules? Technically not a submodule,
@@ -1393,24 +1432,13 @@ static void fetch_task_release(struct fetch_task *p)
}
static struct repository *get_submodule_repo_for(struct repository *r,
- const struct submodule *sub)
+ const char *path)
{
struct repository *ret = xmalloc(sizeof(*ret));
- if (repo_submodule_init(ret, r, sub)) {
- /*
- * No entry in .gitmodules? Technically not a submodule,
- * but historically we supported repositories that happen to be
- * in-place where a gitlink is. Keep supporting them.
- */
- struct strbuf gitdir = STRBUF_INIT;
- strbuf_repo_worktree_path(&gitdir, r, "%s/.git", sub->path);
- if (repo_init(ret, gitdir.buf, NULL)) {
- strbuf_release(&gitdir);
- free(ret);
- return NULL;
- }
- strbuf_release(&gitdir);
+ if (repo_submodule_init(ret, r, path, null_oid())) {
+ free(ret);
+ return NULL;
}
return ret;
@@ -1452,7 +1480,7 @@ static int get_next_submodule(struct child_process *cp,
continue;
}
- task->repo = get_submodule_repo_for(spf->r, task->sub);
+ task->repo = get_submodule_repo_for(spf->r, task->sub->path);
if (task->repo) {
struct strbuf submodule_prefix = STRBUF_INIT;
child_process_init(cp);
@@ -1831,14 +1859,16 @@ out:
void submodule_unset_core_worktree(const struct submodule *sub)
{
- char *config_path = xstrfmt("%s/modules/%s/config",
- get_git_dir(), sub->name);
+ struct strbuf config_path = STRBUF_INIT;
- if (git_config_set_in_file_gently(config_path, "core.worktree", NULL))
+ submodule_name_to_gitdir(&config_path, the_repository, sub->name);
+ strbuf_addstr(&config_path, "/config");
+
+ if (git_config_set_in_file_gently(config_path.buf, "core.worktree", NULL))
warning(_("Could not unset core.worktree setting in submodule '%s'"),
sub->path);
- free(config_path);
+ strbuf_release(&config_path);
}
static const char *get_super_prefix_or_empty(void)
@@ -1878,6 +1908,7 @@ static void submodule_reset_index(const char *path)
strvec_pushf(&cp.args, "--super-prefix=%s%s/",
get_super_prefix_or_empty(), path);
+ /* TODO: determine if this might overwright untracked files */
strvec_pushl(&cp.args, "read-tree", "-u", "--reset", NULL);
strvec_push(&cp.args, empty_tree_oid_hex());
@@ -1917,7 +1948,7 @@ int submodule_move_head(const char *path,
if (old_head && !is_submodule_populated_gently(path, error_code_ptr))
return 0;
- sub = submodule_from_path(the_repository, &null_oid, path);
+ sub = submodule_from_path(the_repository, null_oid(), path);
if (!sub)
BUG("could not get submodule information for '%s'", path);
@@ -1934,20 +1965,22 @@ int submodule_move_head(const char *path,
absorb_git_dir_into_superproject(path,
ABSORB_GITDIR_RECURSE_SUBMODULES);
} else {
- char *gitdir = xstrfmt("%s/modules/%s",
- get_git_dir(), sub->name);
- connect_work_tree_and_git_dir(path, gitdir, 0);
- free(gitdir);
+ struct strbuf gitdir = STRBUF_INIT;
+ submodule_name_to_gitdir(&gitdir, the_repository,
+ sub->name);
+ connect_work_tree_and_git_dir(path, gitdir.buf, 0);
+ strbuf_release(&gitdir);
/* make sure the index is clean as well */
submodule_reset_index(path);
}
if (old_head && (flags & SUBMODULE_MOVE_HEAD_FORCE)) {
- char *gitdir = xstrfmt("%s/modules/%s",
- get_git_dir(), sub->name);
- connect_work_tree_and_git_dir(path, gitdir, 1);
- free(gitdir);
+ struct strbuf gitdir = STRBUF_INIT;
+ submodule_name_to_gitdir(&gitdir, the_repository,
+ sub->name);
+ connect_work_tree_and_git_dir(path, gitdir.buf, 1);
+ strbuf_release(&gitdir);
}
}
@@ -2062,7 +2095,7 @@ int validate_submodule_git_dir(char *git_dir, const char *submodule_name)
static void relocate_single_git_dir_into_superproject(const char *path)
{
char *old_git_dir = NULL, *real_old_git_dir = NULL, *real_new_git_dir = NULL;
- char *new_git_dir;
+ struct strbuf new_gitdir = STRBUF_INIT;
const struct submodule *sub;
if (submodule_uses_worktrees(path))
@@ -2076,18 +2109,17 @@ static void relocate_single_git_dir_into_superproject(const char *path)
real_old_git_dir = real_pathdup(old_git_dir, 1);
- sub = submodule_from_path(the_repository, &null_oid, path);
+ sub = submodule_from_path(the_repository, null_oid(), path);
if (!sub)
die(_("could not lookup name for submodule '%s'"), path);
- new_git_dir = git_pathdup("modules/%s", sub->name);
- if (validate_submodule_git_dir(new_git_dir, sub->name) < 0)
+ submodule_name_to_gitdir(&new_gitdir, the_repository, sub->name);
+ if (validate_submodule_git_dir(new_gitdir.buf, sub->name) < 0)
die(_("refusing to move '%s' into an existing git dir"),
real_old_git_dir);
- 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);
- free(new_git_dir);
+ if (safe_create_leading_directories_const(new_gitdir.buf) < 0)
+ die(_("could not create directory '%s'"), new_gitdir.buf);
+ real_new_git_dir = real_pathdup(new_gitdir.buf, 1);
fprintf(stderr, _("Migrating git directory of '%s%s' from\n'%s' to\n'%s'\n"),
get_super_prefix_or_empty(), path,
@@ -2098,6 +2130,7 @@ static void relocate_single_git_dir_into_superproject(const char *path)
free(old_git_dir);
free(real_old_git_dir);
free(real_new_git_dir);
+ strbuf_release(&new_gitdir);
}
/*
@@ -2117,6 +2150,7 @@ void absorb_git_dir_into_superproject(const char *path,
/* Not populated? */
if (!sub_git_dir) {
const struct submodule *sub;
+ struct strbuf sub_gitdir = STRBUF_INIT;
if (err_code == READ_GITFILE_ERR_STAT_FAILED) {
/* unpopulated as expected */
@@ -2135,11 +2169,12 @@ void absorb_git_dir_into_superproject(const char *path,
* superproject did not rewrite the git file links yet,
* fix it now.
*/
- sub = submodule_from_path(the_repository, &null_oid, path);
+ sub = submodule_from_path(the_repository, null_oid(), 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), 0);
+ submodule_name_to_gitdir(&sub_gitdir, the_repository, sub->name);
+ connect_work_tree_and_git_dir(path, sub_gitdir.buf, 0);
+ strbuf_release(&sub_gitdir);
} else {
/* Is it already absorbed into the superprojects git dir? */
char *real_sub_git_dir = real_pathdup(sub_git_dir, 1);
@@ -2283,15 +2318,43 @@ int submodule_to_gitdir(struct strbuf *buf, const char *submodule)
strbuf_addstr(buf, git_dir);
}
if (!is_git_directory(buf->buf)) {
- sub = submodule_from_path(the_repository, &null_oid, submodule);
+ sub = submodule_from_path(the_repository, null_oid(),
+ submodule);
if (!sub) {
ret = -1;
goto cleanup;
}
strbuf_reset(buf);
- strbuf_git_path(buf, "%s/%s", "modules", sub->name);
+ submodule_name_to_gitdir(buf, the_repository, sub->name);
}
cleanup:
return ret;
}
+
+void submodule_name_to_gitdir(struct strbuf *buf, struct repository *r,
+ const char *submodule_name)
+{
+ /*
+ * NEEDSWORK: The current way of mapping a submodule's name to
+ * its location in .git/modules/ has problems with some naming
+ * schemes. For example, if a submodule is named "foo" and
+ * another is named "foo/bar" (whether present in the same
+ * superproject commit or not - the problem will arise if both
+ * superproject commits have been checked out at any point in
+ * time), or if two submodule names only have different cases in
+ * a case-insensitive filesystem.
+ *
+ * There are several solutions, including encoding the path in
+ * some way, introducing a submodule.<name>.gitdir config in
+ * .git/config (not .gitmodules) that allows overriding what the
+ * gitdir of a submodule would be (and teach Git, upon noticing
+ * a clash, to automatically determine a non-clashing name and
+ * to write such a config), or introducing a
+ * submodule.<name>.gitdir config in .gitmodules that repo
+ * administrators can explicitly set. Nothing has been decided,
+ * so for now, just append the name at the end of the path.
+ */
+ strbuf_repo_git_path(buf, r, "modules/");
+ strbuf_addstr(buf, submodule_name);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 08:14:55 +0000