static int check_submodules_use_gitfiles(void)
{
int i;
int errs = 0;
for (i = 0; i < list.nr; i++) {
const char *name = list.entry[i].name;
int pos;
struct cache_entry *ce;
struct stat st;
pos = cache_name_pos(name, strlen(name));
if (pos < 0) {
pos = get_ours_cache_pos(name, pos);
if (pos < 0)
continue;
}
ce = active_cache[pos];
if (!S_ISGITLINK(ce->ce_mode) ||
(lstat(ce->name, &st) < 0) ||
is_empty_dir(name))
continue;
if (!submodule_uses_gitfile(name))
errs = error(_("submodule '%s' (or one of its nested "
"submodules) uses a .git directory\n"
"(use 'rm -rf' if you really want to remove "
"it including all of its history)"), name);
}
return errs;
}
static int check_submodules_use_gitfiles(void)
{
int i;
int errs = 0;
struct string_list files = STRING_LIST_INIT_NODUP;
for (i = 0; i < list.nr; i++) {
const char *name = list.entry[i].name;
int pos;
const struct cache_entry *ce;
pos = cache_name_pos(name, strlen(name));
if (pos < 0) {
pos = get_ours_cache_pos(name, pos);
if (pos < 0)
continue;
}
ce = active_cache[pos];
if (!S_ISGITLINK(ce->ce_mode) ||
!file_exists(ce->name) ||
is_empty_dir(name))
continue;
if (!submodule_uses_gitfile(name))
string_list_append(&files, name);
}
error_removing_concrete_submodules(&files, &errs);
return errs;
}
static void submodules_absorb_gitdir_if_needed(const char *prefix)
{
int i;
for (i = 0; i < list.nr; i++) {
const char *name = list.entry[i].name;
int pos;
const struct cache_entry *ce;
pos = cache_name_pos(name, strlen(name));
if (pos < 0) {
pos = get_ours_cache_pos(name, pos);
if (pos < 0)
continue;
}
ce = active_cache[pos];
if (!S_ISGITLINK(ce->ce_mode) ||
!file_exists(ce->name) ||
is_empty_dir(name))
continue;
if (!submodule_uses_gitfile(name))
absorb_git_dir_into_superproject(prefix, name,
ABSORB_GITDIR_RECURSE_SUBMODULES);
}
}
int ok_to_remove_submodule(const char *path)
{
struct stat st;
ssize_t len;
struct child_process cp;
const char *argv[] = {
"status",
"--porcelain",
"-u",
"--ignore-submodules=none",
NULL,
};
struct strbuf buf = STRBUF_INIT;
int ok_to_remove = 1;
if ((lstat(path, &st) < 0) || is_empty_dir(path))
return 1;
if (!submodule_uses_gitfile(path))
return 0;
memset(&cp, 0, sizeof(cp));
cp.argv = argv;
cp.env = local_repo_env;
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);
len = strbuf_read(&buf, cp.out, 1024);
if (len > 2)
ok_to_remove = 0;
close(cp.out);
if (finish_command(&cp))
die("'git status --porcelain -uall --ignore-submodules=none' failed in submodule %s", path);
strbuf_release(&buf);
return ok_to_remove;
}
int ok_to_remove_submodule(const char *path)
{
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;
if (!file_exists(path) || is_empty_dir(path))
return 1;
if (!submodule_uses_gitfile(path))
return 0;
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);
len = strbuf_read(&buf, cp.out, 1024);
if (len > 2)
ok_to_remove = 0;
close(cp.out);
if (finish_command(&cp))
die("'git status --porcelain -uall --ignore-submodules=none' failed in submodule %s", path);
strbuf_release(&buf);
return ok_to_remove;
}
int depopulate_submodule(const char *path)
{
struct strbuf dot_git = STRBUF_INIT;
struct child_process cp;
const char *argv[] = {"rm", "-rf", path, NULL};
/* Is it populated? */
strbuf_addf(&dot_git, "%s/.git", path);
if (!resolve_gitdir(dot_git.buf)) {
strbuf_release(&dot_git);
return 0;
}
strbuf_release(&dot_git);
/* Does it have a .git directory? */
if (!submodule_uses_gitfile(path)) {
warning(_("cannot remove submodule '%s' because it (or one of "
"its nested submodules) uses a .git directory"),
path);
return -1;
}
/* Remove the whole submodule directory */
memset(&cp, 0, sizeof(cp));
cp.argv = argv;
cp.env = local_repo_env;
cp.git_cmd = 0;
cp.no_stdin = 1;
if (run_command(&cp)) {
warning("Could not remove submodule %s", path);
strbuf_release(&dot_git);
return -1;
}
return 0;
}
static int check_local_mod(unsigned char *head, int index_only)
{
/*
* Items in list are already sorted in the cache order,
* so we could do this a lot more efficiently by using
* tree_desc based traversal if we wanted to, but I am
* lazy, and who cares if removal of files is a tad
* slower than the theoretical maximum speed?
*/
int i, no_head;
int errs = 0;
no_head = is_null_sha1(head);
for (i = 0; i < list.nr; i++) {
struct stat st;
int pos;
struct cache_entry *ce;
const char *name = list.entry[i].name;
unsigned char sha1[20];
unsigned mode;
int local_changes = 0;
int staged_changes = 0;
pos = cache_name_pos(name, strlen(name));
if (pos < 0) {
/*
* Skip unmerged entries except for populated submodules
* that could lose history when removed.
*/
pos = get_ours_cache_pos(name, pos);
if (pos < 0)
continue;
if (!S_ISGITLINK(active_cache[pos]->ce_mode) ||
is_empty_dir(name))
continue;
}
ce = active_cache[pos];
if (lstat(ce->name, &st) < 0) {
if (errno != ENOENT && errno != ENOTDIR)
warning("'%s': %s", ce->name, strerror(errno));
/* It already vanished from the working tree */
continue;
}
else if (S_ISDIR(st.st_mode)) {
/* if a file was removed and it is now a
* directory, that is the same as ENOENT as
* far as git is concerned; we do not track
* directories unless they are submodules.
*/
if (!S_ISGITLINK(ce->ce_mode))
continue;
}
/*
* "rm" of a path that has changes need to be treated
* carefully not to allow losing local changes
* accidentally. A local change could be (1) file in
* work tree is different since the index; and/or (2)
* the user staged a content that is different from
* the current commit in the index.
*
* In such a case, you would need to --force the
* removal. However, "rm --cached" (remove only from
* the index) is safe if the index matches the file in
* the work tree or the HEAD commit, as it means that
* the content being removed is available elsewhere.
*/
/*
* Is the index different from the file in the work tree?
* If it's a submodule, is its work tree modified?
*/
if (ce_match_stat(ce, &st, 0) ||
(S_ISGITLINK(ce->ce_mode) &&
!ok_to_remove_submodule(ce->name)))
local_changes = 1;
/*
* Is the index different from the HEAD commit? By
* definition, before the very initial commit,
* anything staged in the index is treated by the same
* way as changed from the HEAD.
*/
if (no_head
|| get_tree_entry(head, name, sha1, &mode)
|| ce->ce_mode != create_ce_mode(mode)
|| hashcmp(ce->sha1, sha1))
staged_changes = 1;
/*
* If the index does not match the file in the work
* tree and if it does not match the HEAD commit
* either, (1) "git rm" without --cached definitely
* will lose information; (2) "git rm --cached" will
* lose information unless it is about removing an
* "intent to add" entry.
*/
if (local_changes && staged_changes) {
if (!index_only || !(ce->ce_flags & CE_INTENT_TO_ADD))
errs = error(_("'%s' has staged content different "
"from both the file and the HEAD\n"
"(use -f to force removal)"), name);
}
else if (!index_only) {
if (staged_changes)
errs = error(_("'%s' has changes staged in the index\n"
"(use --cached to keep the file, "
"or -f to force removal)"), name);
if (local_changes) {
if (S_ISGITLINK(ce->ce_mode) &&
!submodule_uses_gitfile(name)) {
errs = error(_("submodule '%s' (or one of its nested "
"submodules) uses a .git directory\n"
"(use 'rm -rf' if you really want to remove "
"it including all of its history)"), name);
} else
errs = error(_("'%s' has local modifications\n"
"(use --cached to keep the file, "
"or -f to force removal)"), name);
}
}
}
return errs;
}
