N_("git stash create [<message>]")
#define BUILTIN_STASH_EXPORT_USAGE \
N_("git stash export (--print | --to-ref <ref>) [<stash>...]")
+#define BUILTIN_STASH_IMPORT_USAGE \
+ N_("git stash import <commit>")
#define BUILTIN_STASH_CLEAR_USAGE \
"git stash clear"
BUILTIN_STASH_CREATE_USAGE,
BUILTIN_STASH_STORE_USAGE,
BUILTIN_STASH_EXPORT_USAGE,
+ BUILTIN_STASH_IMPORT_USAGE,
NULL
};
NULL
};
+static const char * const git_stash_import_usage[] = {
+ BUILTIN_STASH_IMPORT_USAGE,
+ NULL
+};
static const char ref_stash[] = "refs/stash";
static struct strbuf stash_index_path = STRBUF_INIT;
* b_commit is set to the base commit
* i_commit is set to the commit containing the index tree
* u_commit is set to the commit containing the untracked files tree
+ * c_commit is set to the first parent (chain commit) when importing and is otherwise unset
* w_tree is set to the working tree
* b_tree is set to the base tree
* i_tree is set to the index tree
struct object_id b_commit;
struct object_id i_commit;
struct object_id u_commit;
+ struct object_id c_commit;
struct object_id w_tree;
struct object_id b_tree;
struct object_id i_tree;
return ret;
}
+static int do_import_stash(struct repository *r, const char *rev)
+{
+ struct object_id chain;
+ int res = 0;
+ const char *buffer = NULL;
+ unsigned long bufsize;
+ struct commit *this = NULL;
+ struct commit_list *items = NULL, *cur;
+ char *msg = NULL;
+
+ if (repo_get_oid(r, rev, &chain))
+ return error(_("not a valid revision: %s"), rev);
+
+ this = lookup_commit_reference(r, &chain);
+ if (!this)
+ return error(_("not a commit: %s"), rev);
+
+ /*
+ * Walk the commit history, finding each stash entry, and load data into
+ * the array.
+ */
+ for (;;) {
+ const char *author, *committer;
+ size_t author_len, committer_len;
+ const char *p;
+ const char *expected = "git stash <git@stash> 1000684800 +0000";
+ const char *prefix = "git stash: ";
+ struct commit *stash;
+ struct tree *tree = repo_get_commit_tree(r, this);
+
+ if (!tree ||
+ !oideq(&tree->object.oid, r->hash_algo->empty_tree) ||
+ (this->parents &&
+ (!this->parents->next || this->parents->next->next))) {
+ res = error(_("%s is not a valid exported stash commit"),
+ oid_to_hex(&this->object.oid));
+ goto out;
+ }
+
+ buffer = repo_get_commit_buffer(r, this, &bufsize);
+
+ if (!this->parents) {
+ /*
+ * We don't have any parents. Make sure this is our
+ * root commit.
+ */
+ author = find_commit_header(buffer, "author", &author_len);
+ committer = find_commit_header(buffer, "committer", &committer_len);
+
+ if (!author || !committer) {
+ error(_("cannot parse commit %s"), oid_to_hex(&this->object.oid));
+ goto out;
+ }
+
+ if (author_len != strlen(expected) ||
+ committer_len != strlen(expected) ||
+ memcmp(author, expected, author_len) ||
+ memcmp(committer, expected, committer_len)) {
+ res = error(_("found root commit %s with invalid data"), oid_to_hex(&this->object.oid));
+ goto out;
+ }
+ break;
+ }
+
+ p = strstr(buffer, "\n\n");
+ if (!p) {
+ res = error(_("cannot parse commit %s"), oid_to_hex(&this->object.oid));
+ goto out;
+ }
+
+ p += 2;
+ if (((size_t)(bufsize - (p - buffer)) < strlen(prefix)) ||
+ memcmp(prefix, p, strlen(prefix))) {
+ res = error(_("found stash commit %s without expected prefix"), oid_to_hex(&this->object.oid));
+ goto out;
+ }
+
+ stash = this->parents->next->item;
+
+ if (repo_parse_commit(r, this->parents->item) ||
+ repo_parse_commit(r, stash)) {
+ res = error(_("cannot parse parents of commit: %s"),
+ oid_to_hex(&this->object.oid));
+ goto out;
+ }
+
+ if (check_stash_topology(r, stash)) {
+ res = error(_("%s does not look like a stash commit"),
+ oid_to_hex(&stash->object.oid));
+ goto out;
+ }
+
+ repo_unuse_commit_buffer(r, this, buffer);
+ buffer = NULL;
+ items = commit_list_insert(stash, &items);
+ this = this->parents->item;
+ }
+
+ /*
+ * Now, walk each entry, adding it to the stash as a normal stash
+ * commit.
+ */
+ for (cur = items; cur; cur = cur->next) {
+ const char *p;
+ struct object_id *oid;
+
+ this = cur->item;
+ oid = &this->object.oid;
+ buffer = repo_get_commit_buffer(r, this, &bufsize);
+ if (!buffer) {
+ res = error(_("cannot read commit buffer for %s"), oid_to_hex(oid));
+ goto out;
+ }
+
+ p = strstr(buffer, "\n\n");
+ if (!p) {
+ res = error(_("cannot parse commit %s"), oid_to_hex(oid));
+ goto out;
+ }
+
+ p += 2;
+ msg = xmemdupz(p, bufsize - (p - buffer));
+ repo_unuse_commit_buffer(r, this, buffer);
+ buffer = NULL;
+
+ if (do_store_stash(oid, msg, 1)) {
+ res = error(_("cannot save the stash for %s"), oid_to_hex(oid));
+ goto out;
+ }
+ FREE_AND_NULL(msg);
+ }
+out:
+ if (this && buffer)
+ repo_unuse_commit_buffer(r, this, buffer);
+ free_commit_list(items);
+ free(msg);
+
+ return res;
+}
+
+static int import_stash(int argc, const char **argv, const char *prefix,
+ struct repository *repo)
+{
+ struct option options[] = {
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_import_usage,
+ PARSE_OPT_KEEP_DASHDASH);
+
+ if (argc != 1)
+ usage_msg_opt("a revision is required", git_stash_import_usage, options);
+
+ return do_import_stash(repo, argv[0]);
+}
+
struct stash_entry_data {
struct repository *r;
struct commit_list **items;
OPT_SUBCOMMAND("create", &fn, create_stash),
OPT_SUBCOMMAND("push", &fn, push_stash_unassumed),
OPT_SUBCOMMAND("export", &fn, export_stash),
+ OPT_SUBCOMMAND("import", &fn, import_stash),
OPT_SUBCOMMAND_F("save", &fn, save_stash, PARSE_OPT_NOCOMPLETE),
OPT_END()
};
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-unique-files.sh
+test_expect_success 'setup' '
+ test_oid_cache <<-EOF
+ export_base sha1:73c9bab443d1f88ac61aa533d2eeaaa15451239c
+ export_base sha256:f210fa6346e3e2ce047bdb570426b17075980c1ac01fec8fc4b75bd3ab4bcfe4
+ EOF
+'
+
test_expect_success 'usage on cmd and subcommand invalid option' '
test_expect_code 129 git stash --invalid-option 2>usage &&
grep "or: git stash" usage &&
)
'
+test_expect_success 'stash export and import round-trip stashes' '
+ git reset &&
+ >untracked &&
+ >tracked1 &&
+ >tracked2 &&
+ git add tracked* &&
+ git stash -- &&
+ >subdir/untracked &&
+ >subdir/tracked1 &&
+ >subdir/tracked2 &&
+ git add subdir/tracked* &&
+ git stash --include-untracked -- subdir/ &&
+ git tag t-stash0 stash@{0} &&
+ git tag t-stash1 stash@{1} &&
+ simple=$(git stash export --print) &&
+ git stash clear &&
+ git stash import "$simple" &&
+ test_cmp_rev stash@{0} t-stash0 &&
+ test_cmp_rev stash@{1} t-stash1 &&
+ git stash export --to-ref refs/heads/foo &&
+ test_cmp_rev "$(test_oid empty_tree)" foo: &&
+ test_cmp_rev "$(test_oid empty_tree)" foo^: &&
+ test_cmp_rev t-stash0 foo^2 &&
+ test_cmp_rev t-stash1 foo^^2 &&
+ git log --first-parent --format="%s" refs/heads/foo >log &&
+ grep "^git stash: " log >log2 &&
+ test_line_count = 13 log2 &&
+ git stash clear &&
+ git stash import foo &&
+ test_cmp_rev stash@{0} t-stash0 &&
+ test_cmp_rev stash@{1} t-stash1
+'
+
+test_expect_success 'stash import appends commits' '
+ git log --format=oneline -g refs/stash >out &&
+ cat out out >out2 &&
+ git stash import refs/heads/foo &&
+ git log --format=oneline -g refs/stash >actual &&
+ test_line_count = $(wc -l <out2) actual
+'
+
+test_expect_success 'stash export can accept specified stashes' '
+ git stash clear &&
+ git stash import foo &&
+ git stash export --to-ref refs/heads/bar stash@{1} stash@{0} &&
+ git stash clear &&
+ git stash import refs/heads/bar &&
+ test_cmp_rev stash@{1} t-stash0 &&
+ test_cmp_rev stash@{0} t-stash1 &&
+ git log --format=oneline -g refs/stash >actual &&
+ test_line_count = 2 actual
+'
+
+test_expect_success 'stash export rejects invalid arguments' '
+ test_must_fail git stash export --print --to-ref refs/heads/invalid 2>err &&
+ grep "exactly one of --print and --to-ref is required" err &&
+ test_must_fail git stash export 2>err2 &&
+ grep "exactly one of --print and --to-ref is required" err2
+'
+
+test_expect_success 'stash can import and export zero stashes' '
+ git stash clear &&
+ git stash export --to-ref refs/heads/baz &&
+ test_cmp_rev "$(test_oid empty_tree)" baz: &&
+ test_cmp_rev "$(test_oid export_base)" baz &&
+ test_must_fail git rev-parse baz^1 &&
+ git stash import baz &&
+ test_must_fail git rev-parse refs/stash
+'
+
+test_expect_success 'stash rejects invalid attempts to import commits' '
+ git stash import foo &&
+ test_must_fail git stash import HEAD 2>output &&
+ oid=$(git rev-parse HEAD) &&
+ grep "$oid is not a valid exported stash commit" output &&
+ test_cmp_rev stash@{0} t-stash0 &&
+
+ git checkout --orphan orphan &&
+ git commit-tree $(test_oid empty_tree) -p "$oid" -p "$oid^" -m "" >fake-commit &&
+ git update-ref refs/heads/orphan "$(cat fake-commit)" &&
+ oid=$(git rev-parse HEAD) &&
+ test_must_fail git stash import orphan 2>output &&
+ grep "found stash commit $oid without expected prefix" output &&
+ test_cmp_rev stash@{0} t-stash0 &&
+
+ git checkout --orphan orphan2 &&
+ git commit-tree $(test_oid empty_tree) -m "" >fake-commit &&
+ git update-ref refs/heads/orphan2 "$(cat fake-commit)" &&
+ oid=$(git rev-parse HEAD) &&
+ test_must_fail git stash import orphan2 2>output &&
+ grep "found root commit $oid with invalid data" output &&
+ test_cmp_rev stash@{0} t-stash0
+'
+
test_expect_success 'stash apply should succeed with unmodified file' '
echo base >file &&
git add file &&
projects / thirdparty / git.git / commitdiff
