mirror of
https://github.com/git/git.git
synced 2024-11-23 18:05:29 +08:00
Merge branch 'jl/submodule-rm'
"git rm submodule" cannot blindly remove a submodule directory as its working tree may have local changes, and worse yet, it may even have its repository embedded in it. Teach it some special cases where it is safe to remove a submodule, specifically, when there is no local changes in the submodule working tree, and its repository is not embedded in its working tree but is elsewhere and uses the gitfile mechanism to point at it. * jl/submodule-rm: submodule: teach rm to remove submodules unless they contain a git directory
This commit is contained in:
Jeff King
commit
d21240fafa
@ -107,6 +107,21 @@ as well as modifications of existing paths.
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Typically you would first remove all tracked files from the working
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tree using this command:
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Submodules
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~~~~~~~~~~
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Only submodules using a gitfile (which means they were cloned
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with a git version 1.7.8 or newer) will be removed from the work
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tree, as their repository lives inside the .git directory of the
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superproject. If a submodule (or one of those nested inside it)
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still uses a .git directory, `git rm` will fail - no matter if forced
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or not - to protect the submodule's history.
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A submodule is considered up-to-date when the HEAD is the same as
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recorded in the index, no tracked files are modified and no untracked
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files that aren't ignored are present in the submodules work tree.
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Ignored files are deemed expendable and won't stop a submodule's work
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tree from being removed.
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----------------
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git ls-files -z | xargs -0 rm -f
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----------------
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125
builtin/rm.c
125
builtin/rm.c
@ -9,6 +9,7 @@
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#include "cache-tree.h"
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#include "tree-walk.h"
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#include "parse-options.h"
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#include "submodule.h"
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static const char * const builtin_rm_usage[] = {
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N_("git rm [options] [--] <file>..."),
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@ -17,9 +18,58 @@ static const char * const builtin_rm_usage[] = {
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static struct {
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int nr, alloc;
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const char **name;
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struct {
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const char *name;
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char is_submodule;
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} *entry;
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} list;
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static int get_ours_cache_pos(const char *path, int pos)
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{
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int i = -pos - 1;
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while ((i < active_nr) && !strcmp(active_cache[i]->name, path)) {
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if (ce_stage(active_cache[i]) == 2)
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return i;
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i++;
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}
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return -1;
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}
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static int check_submodules_use_gitfiles(void)
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{
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int i;
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int errs = 0;
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for (i = 0; i < list.nr; i++) {
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const char *name = list.entry[i].name;
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int pos;
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struct cache_entry *ce;
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struct stat st;
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pos = cache_name_pos(name, strlen(name));
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if (pos < 0) {
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pos = get_ours_cache_pos(name, pos);
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if (pos < 0)
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continue;
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}
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ce = active_cache[pos];
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if (!S_ISGITLINK(ce->ce_mode) ||
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(lstat(ce->name, &st) < 0) ||
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is_empty_dir(name))
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continue;
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if (!submodule_uses_gitfile(name))
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errs = error(_("submodule '%s' (or one of its nested "
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"submodules) uses a .git directory\n"
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"(use 'rm -rf' if you really want to remove "
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"it including all of its history)"), name);
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}
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return errs;
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}
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static int check_local_mod(unsigned char *head, int index_only)
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{
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/*
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@ -37,15 +87,26 @@ static int check_local_mod(unsigned char *head, int index_only)
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struct stat st;
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int pos;
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struct cache_entry *ce;
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const char *name = list.name[i];
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const char *name = list.entry[i].name;
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unsigned char sha1[20];
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unsigned mode;
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int local_changes = 0;
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int staged_changes = 0;
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pos = cache_name_pos(name, strlen(name));
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if (pos < 0)
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continue; /* removing unmerged entry */
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if (pos < 0) {
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/*
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* Skip unmerged entries except for populated submodules
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* that could lose history when removed.
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*/
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pos = get_ours_cache_pos(name, pos);
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if (pos < 0)
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continue;
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if (!S_ISGITLINK(active_cache[pos]->ce_mode) ||
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is_empty_dir(name))
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continue;
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}
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ce = active_cache[pos];
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if (lstat(ce->name, &st) < 0) {
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@ -58,9 +119,10 @@ static int check_local_mod(unsigned char *head, int index_only)
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/* if a file was removed and it is now a
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* directory, that is the same as ENOENT as
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* far as git is concerned; we do not track
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* directories.
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* directories unless they are submodules.
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*/
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continue;
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if (!S_ISGITLINK(ce->ce_mode))
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continue;
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}
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/*
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@ -80,8 +142,11 @@ static int check_local_mod(unsigned char *head, int index_only)
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/*
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* Is the index different from the file in the work tree?
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* If it's a submodule, is its work tree modified?
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*/
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if (ce_match_stat(ce, &st, 0))
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if (ce_match_stat(ce, &st, 0) ||
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(S_ISGITLINK(ce->ce_mode) &&
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!ok_to_remove_submodule(ce->name)))
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local_changes = 1;
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/*
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@ -115,10 +180,18 @@ static int check_local_mod(unsigned char *head, int index_only)
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errs = error(_("'%s' has changes staged in the index\n"
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"(use --cached to keep the file, "
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"or -f to force removal)"), name);
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if (local_changes)
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errs = error(_("'%s' has local modifications\n"
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"(use --cached to keep the file, "
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"or -f to force removal)"), name);
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if (local_changes) {
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if (S_ISGITLINK(ce->ce_mode) &&
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!submodule_uses_gitfile(name)) {
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errs = error(_("submodule '%s' (or one of its nested "
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"submodules) uses a .git directory\n"
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"(use 'rm -rf' if you really want to remove "
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"it including all of its history)"), name);
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} else
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errs = error(_("'%s' has local modifications\n"
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"(use --cached to keep the file, "
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"or -f to force removal)"), name);
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}
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}
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}
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return errs;
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@ -173,8 +246,9 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
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struct cache_entry *ce = active_cache[i];
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if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen))
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continue;
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ALLOC_GROW(list.name, list.nr + 1, list.alloc);
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list.name[list.nr++] = ce->name;
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ALLOC_GROW(list.entry, list.nr + 1, list.alloc);
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list.entry[list.nr].name = ce->name;
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list.entry[list.nr++].is_submodule = S_ISGITLINK(ce->ce_mode);
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}
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if (pathspec) {
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@ -215,6 +289,9 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
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hashclr(sha1);
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if (check_local_mod(sha1, index_only))
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exit(1);
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} else if (!index_only) {
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if (check_submodules_use_gitfiles())
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exit(1);
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}
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/*
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@ -222,7 +299,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
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* the index unless all of them succeed.
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*/
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for (i = 0; i < list.nr; i++) {
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const char *path = list.name[i];
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const char *path = list.entry[i].name;
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if (!quiet)
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printf("rm '%s'\n", path);
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@ -244,7 +321,25 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
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if (!index_only) {
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int removed = 0;
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for (i = 0; i < list.nr; i++) {
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const char *path = list.name[i];
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const char *path = list.entry[i].name;
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if (list.entry[i].is_submodule) {
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if (is_empty_dir(path)) {
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if (!rmdir(path)) {
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removed = 1;
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continue;
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}
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} else {
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struct strbuf buf = STRBUF_INIT;
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strbuf_addstr(&buf, path);
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if (!remove_dir_recursively(&buf, 0)) {
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removed = 1;
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strbuf_release(&buf);
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continue;
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}
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strbuf_release(&buf);
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/* Fallthrough and let remove_path() fail. */
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}
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}
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if (!remove_path(path)) {
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removed = 1;
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continue;
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80
submodule.c
80
submodule.c
@ -759,6 +759,86 @@ unsigned is_submodule_modified(const char *path, int ignore_untracked)
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return dirty_submodule;
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}
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int submodule_uses_gitfile(const char *path)
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{
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struct child_process cp;
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const char *argv[] = {
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"submodule",
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"foreach",
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"--quiet",
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"--recursive",
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"test -f .git",
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NULL,
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};
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struct strbuf buf = STRBUF_INIT;
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const char *git_dir;
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strbuf_addf(&buf, "%s/.git", path);
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git_dir = read_gitfile(buf.buf);
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if (!git_dir) {
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strbuf_release(&buf);
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return 0;
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}
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strbuf_release(&buf);
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/* Now test that all nested submodules use a gitfile too */
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memset(&cp, 0, sizeof(cp));
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cp.argv = argv;
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cp.env = local_repo_env;
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cp.git_cmd = 1;
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cp.no_stdin = 1;
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cp.no_stderr = 1;
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cp.no_stdout = 1;
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cp.dir = path;
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if (run_command(&cp))
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return 0;
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|
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return 1;
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}
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|
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int ok_to_remove_submodule(const char *path)
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{
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struct stat st;
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ssize_t len;
|
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struct child_process cp;
|
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const char *argv[] = {
|
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"status",
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"--porcelain",
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"-u",
|
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"--ignore-submodules=none",
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NULL,
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};
|
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struct strbuf buf = STRBUF_INIT;
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int ok_to_remove = 1;
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|
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if ((lstat(path, &st) < 0) || is_empty_dir(path))
|
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return 1;
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|
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if (!submodule_uses_gitfile(path))
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return 0;
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|
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memset(&cp, 0, sizeof(cp));
|
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cp.argv = argv;
|
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cp.env = local_repo_env;
|
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cp.git_cmd = 1;
|
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cp.no_stdin = 1;
|
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cp.out = -1;
|
||||
cp.dir = path;
|
||||
if (start_command(&cp))
|
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die("Could not run 'git status --porcelain -uall --ignore-submodules=none' in submodule %s", path);
|
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|
||||
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);
|
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return ok_to_remove;
|
||||
}
|
||||
|
||||
static int find_first_merges(struct object_array *result, const char *path,
|
||||
struct commit *a, struct commit *b)
|
||||
{
|
||||
|
||||
@ -28,6 +28,8 @@ int fetch_populated_submodules(const struct argv_array *options,
|
||||
const char *prefix, int command_line_option,
|
||||
int quiet);
|
||||
unsigned is_submodule_modified(const char *path, int ignore_untracked);
|
||||
int submodule_uses_gitfile(const char *path);
|
||||
int ok_to_remove_submodule(const char *path);
|
||||
int merge_submodule(unsigned char result[20], const char *path, const unsigned char base[20],
|
||||
const unsigned char a[20], const unsigned char b[20], int search);
|
||||
int find_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_name,
|
||||
|
||||
343
t/t3600-rm.sh
343
t/t3600-rm.sh
@ -262,4 +262,347 @@ test_expect_success 'rm removes subdirectories recursively' '
|
||||
! test -d dir
|
||||
'
|
||||
|
||||
cat >expect <<EOF
|
||||
D submod
|
||||
EOF
|
||||
|
||||
cat >expect.modified <<EOF
|
||||
M submod
|
||||
EOF
|
||||
|
||||
test_expect_success 'rm removes empty submodules from work tree' '
|
||||
mkdir submod &&
|
||||
git update-index --add --cacheinfo 160000 $(git rev-parse HEAD) submod &&
|
||||
git config -f .gitmodules submodule.sub.url ./. &&
|
||||
git config -f .gitmodules submodule.sub.path submod &&
|
||||
git submodule init &&
|
||||
git add .gitmodules &&
|
||||
git commit -m "add submodule" &&
|
||||
git rm submod &&
|
||||
test ! -e submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm removes removed submodule from index' '
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
rm -rf submod &&
|
||||
git rm submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm removes work tree of unmodified submodules' '
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
git rm submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a populated submodule with different HEAD fails unless forced' '
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
(cd submod &&
|
||||
git checkout HEAD^
|
||||
) &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -f submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.modified actual &&
|
||||
git rm -f submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a populated submodule with modifications fails unless forced' '
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
(cd submod &&
|
||||
echo X >empty
|
||||
) &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -f submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.modified actual &&
|
||||
git rm -f submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a populated submodule with untracked files fails unless forced' '
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
(cd submod &&
|
||||
echo X >untracked
|
||||
) &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -f submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.modified actual &&
|
||||
git rm -f submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'setup submodule conflict' '
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
git checkout -b branch1 &&
|
||||
echo 1 >nitfol &&
|
||||
git add nitfol &&
|
||||
git commit -m "added nitfol 1" &&
|
||||
git checkout -b branch2 master &&
|
||||
echo 2 >nitfol &&
|
||||
git add nitfol &&
|
||||
git commit -m "added nitfol 2" &&
|
||||
git checkout -b conflict1 master &&
|
||||
(cd submod &&
|
||||
git fetch &&
|
||||
git checkout branch1
|
||||
) &&
|
||||
git add submod &&
|
||||
git commit -m "submod 1" &&
|
||||
git checkout -b conflict2 master &&
|
||||
(cd submod &&
|
||||
git checkout branch2
|
||||
) &&
|
||||
git add submod &&
|
||||
git commit -m "submod 2"
|
||||
'
|
||||
|
||||
cat >expect.conflict <<EOF
|
||||
UU submod
|
||||
EOF
|
||||
|
||||
test_expect_success 'rm removes work tree of unmodified conflicted submodule' '
|
||||
git checkout conflict1 &&
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
test_must_fail git merge conflict2 &&
|
||||
git rm submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a conflicted populated submodule with different HEAD fails unless forced' '
|
||||
git checkout conflict1 &&
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
(cd submod &&
|
||||
git checkout HEAD^
|
||||
) &&
|
||||
test_must_fail git merge conflict2 &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -f submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.conflict actual &&
|
||||
git rm -f submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a conflicted populated submodule with modifications fails unless forced' '
|
||||
git checkout conflict1 &&
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
(cd submod &&
|
||||
echo X >empty
|
||||
) &&
|
||||
test_must_fail git merge conflict2 &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -f submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.conflict actual &&
|
||||
git rm -f submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a conflicted populated submodule with untracked files fails unless forced' '
|
||||
git checkout conflict1 &&
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
(cd submod &&
|
||||
echo X >untracked
|
||||
) &&
|
||||
test_must_fail git merge conflict2 &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -f submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.conflict actual &&
|
||||
git rm -f submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a conflicted populated submodule with a .git directory fails even when forced' '
|
||||
git checkout conflict1 &&
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
(cd submod &&
|
||||
rm .git &&
|
||||
cp -a ../.git/modules/sub .git &&
|
||||
GIT_WORK_TREE=. git config --unset core.worktree
|
||||
) &&
|
||||
test_must_fail git merge conflict2 &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -d submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.conflict actual &&
|
||||
test_must_fail git rm -f submod &&
|
||||
test -d submod &&
|
||||
test -d submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.conflict actual &&
|
||||
git merge --abort &&
|
||||
rm -rf submod
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a conflicted unpopulated submodule succeeds' '
|
||||
git checkout conflict1 &&
|
||||
git reset --hard &&
|
||||
test_must_fail git merge conflict2 &&
|
||||
git rm submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a populated submodule with a .git directory fails even when forced' '
|
||||
git checkout -f master &&
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
(cd submod &&
|
||||
rm .git &&
|
||||
cp -a ../.git/modules/sub .git &&
|
||||
GIT_WORK_TREE=. git config --unset core.worktree
|
||||
) &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -d submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
! test -s actual &&
|
||||
test_must_fail git rm -f submod &&
|
||||
test -d submod &&
|
||||
test -d submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
! test -s actual &&
|
||||
rm -rf submod
|
||||
'
|
||||
|
||||
cat >expect.deepmodified <<EOF
|
||||
M submod/subsubmod
|
||||
EOF
|
||||
|
||||
test_expect_success 'setup subsubmodule' '
|
||||
git reset --hard &&
|
||||
git submodule update &&
|
||||
(cd submod &&
|
||||
git update-index --add --cacheinfo 160000 $(git rev-parse HEAD) subsubmod &&
|
||||
git config -f .gitmodules submodule.sub.url ../. &&
|
||||
git config -f .gitmodules submodule.sub.path subsubmod &&
|
||||
git submodule init &&
|
||||
git add .gitmodules &&
|
||||
git commit -m "add subsubmodule" &&
|
||||
git submodule update subsubmod
|
||||
) &&
|
||||
git commit -a -m "added deep submodule"
|
||||
'
|
||||
|
||||
test_expect_success 'rm recursively removes work tree of unmodified submodules' '
|
||||
git rm submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a populated nested submodule with different nested HEAD fails unless forced' '
|
||||
git reset --hard &&
|
||||
git submodule update --recursive &&
|
||||
(cd submod/subsubmod &&
|
||||
git checkout HEAD^
|
||||
) &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -f submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.modified actual &&
|
||||
git rm -f submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a populated nested submodule with nested modifications fails unless forced' '
|
||||
git reset --hard &&
|
||||
git submodule update --recursive &&
|
||||
(cd submod/subsubmod &&
|
||||
echo X >empty
|
||||
) &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -f submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.modified actual &&
|
||||
git rm -f submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a populated nested submodule with nested untracked files fails unless forced' '
|
||||
git reset --hard &&
|
||||
git submodule update --recursive &&
|
||||
(cd submod/subsubmod &&
|
||||
echo X >untracked
|
||||
) &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -f submod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect.modified actual &&
|
||||
git rm -f submod &&
|
||||
test ! -d submod &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'rm of a populated nested submodule with a nested .git directory fails even when forced' '
|
||||
git reset --hard &&
|
||||
git submodule update --recursive &&
|
||||
(cd submod/subsubmod &&
|
||||
rm .git &&
|
||||
cp -a ../../.git/modules/sub/modules/sub .git &&
|
||||
GIT_WORK_TREE=. git config --unset core.worktree
|
||||
) &&
|
||||
test_must_fail git rm submod &&
|
||||
test -d submod &&
|
||||
test -d submod/subsubmod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
! test -s actual &&
|
||||
test_must_fail git rm -f submod &&
|
||||
test -d submod &&
|
||||
test -d submod/subsubmod/.git &&
|
||||
git status -s -uno --ignore-submodules=none > actual &&
|
||||
! test -s actual &&
|
||||
rm -rf submod
|
||||
'
|
||||
|
||||
test_done
|
||||
|
||||
Loading…
Reference in New Issue
Block a user