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-rw-r--r--builtin/stash.c1887
1 files changed, 1887 insertions, 0 deletions
diff --git a/builtin/stash.c b/builtin/stash.c
new file mode 100644
index 0000000..4a6771c
--- /dev/null
+++ b/builtin/stash.c
@@ -0,0 +1,1887 @@
+#define USE_THE_INDEX_VARIABLE
+#include "builtin.h"
+#include "abspath.h"
+#include "config.h"
+#include "environment.h"
+#include "gettext.h"
+#include "hash.h"
+#include "hex.h"
+#include "object-name.h"
+#include "parse-options.h"
+#include "refs.h"
+#include "lockfile.h"
+#include "cache-tree.h"
+#include "unpack-trees.h"
+#include "merge-recursive.h"
+#include "merge-ort-wrappers.h"
+#include "strvec.h"
+#include "run-command.h"
+#include "dir.h"
+#include "entry.h"
+#include "preload-index.h"
+#include "read-cache.h"
+#include "rerere.h"
+#include "revision.h"
+#include "setup.h"
+#include "sparse-index.h"
+#include "log-tree.h"
+#include "diffcore.h"
+#include "exec-cmd.h"
+#include "reflog.h"
+#include "add-interactive.h"
+
+#define INCLUDE_ALL_FILES 2
+
+#define BUILTIN_STASH_LIST_USAGE \
+ N_("git stash list [<log-options>]")
+#define BUILTIN_STASH_SHOW_USAGE \
+ N_("git stash show [-u | --include-untracked | --only-untracked] [<diff-options>] [<stash>]")
+#define BUILTIN_STASH_DROP_USAGE \
+ N_("git stash drop [-q | --quiet] [<stash>]")
+#define BUILTIN_STASH_POP_USAGE \
+ N_("git stash pop [--index] [-q | --quiet] [<stash>]")
+#define BUILTIN_STASH_APPLY_USAGE \
+ N_("git stash apply [--index] [-q | --quiet] [<stash>]")
+#define BUILTIN_STASH_BRANCH_USAGE \
+ N_("git stash branch <branchname> [<stash>]")
+#define BUILTIN_STASH_STORE_USAGE \
+ N_("git stash store [(-m | --message) <message>] [-q | --quiet] <commit>")
+#define BUILTIN_STASH_PUSH_USAGE \
+ N_("git stash [push [-p | --patch] [-S | --staged] [-k | --[no-]keep-index] [-q | --quiet]\n" \
+ " [-u | --include-untracked] [-a | --all] [(-m | --message) <message>]\n" \
+ " [--pathspec-from-file=<file> [--pathspec-file-nul]]\n" \
+ " [--] [<pathspec>...]]")
+#define BUILTIN_STASH_SAVE_USAGE \
+ N_("git stash save [-p | --patch] [-S | --staged] [-k | --[no-]keep-index] [-q | --quiet]\n" \
+ " [-u | --include-untracked] [-a | --all] [<message>]")
+#define BUILTIN_STASH_CREATE_USAGE \
+ N_("git stash create [<message>]")
+#define BUILTIN_STASH_CLEAR_USAGE \
+ "git stash clear"
+
+static const char * const git_stash_usage[] = {
+ BUILTIN_STASH_LIST_USAGE,
+ BUILTIN_STASH_SHOW_USAGE,
+ BUILTIN_STASH_DROP_USAGE,
+ BUILTIN_STASH_POP_USAGE,
+ BUILTIN_STASH_APPLY_USAGE,
+ BUILTIN_STASH_BRANCH_USAGE,
+ BUILTIN_STASH_PUSH_USAGE,
+ BUILTIN_STASH_SAVE_USAGE,
+ BUILTIN_STASH_CLEAR_USAGE,
+ BUILTIN_STASH_CREATE_USAGE,
+ BUILTIN_STASH_STORE_USAGE,
+ NULL
+};
+
+static const char * const git_stash_list_usage[] = {
+ BUILTIN_STASH_LIST_USAGE,
+ NULL
+};
+
+static const char * const git_stash_show_usage[] = {
+ BUILTIN_STASH_SHOW_USAGE,
+ NULL
+};
+
+static const char * const git_stash_drop_usage[] = {
+ BUILTIN_STASH_DROP_USAGE,
+ NULL
+};
+
+static const char * const git_stash_pop_usage[] = {
+ BUILTIN_STASH_POP_USAGE,
+ NULL
+};
+
+static const char * const git_stash_apply_usage[] = {
+ BUILTIN_STASH_APPLY_USAGE,
+ NULL
+};
+
+static const char * const git_stash_branch_usage[] = {
+ BUILTIN_STASH_BRANCH_USAGE,
+ NULL
+};
+
+static const char * const git_stash_clear_usage[] = {
+ BUILTIN_STASH_CLEAR_USAGE,
+ NULL
+};
+
+static const char * const git_stash_store_usage[] = {
+ BUILTIN_STASH_STORE_USAGE,
+ NULL
+};
+
+static const char * const git_stash_push_usage[] = {
+ BUILTIN_STASH_PUSH_USAGE,
+ NULL
+};
+
+static const char * const git_stash_save_usage[] = {
+ BUILTIN_STASH_SAVE_USAGE,
+ NULL
+};
+
+static const char ref_stash[] = "refs/stash";
+static struct strbuf stash_index_path = STRBUF_INIT;
+
+/*
+ * w_commit is set to the commit containing the working tree
+ * 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
+ * w_tree is set to the working tree
+ * b_tree is set to the base tree
+ * i_tree is set to the index tree
+ * u_tree is set to the untracked files tree
+ */
+struct stash_info {
+ struct object_id w_commit;
+ struct object_id b_commit;
+ struct object_id i_commit;
+ struct object_id u_commit;
+ struct object_id w_tree;
+ struct object_id b_tree;
+ struct object_id i_tree;
+ struct object_id u_tree;
+ struct strbuf revision;
+ int is_stash_ref;
+ int has_u;
+};
+
+#define STASH_INFO_INIT { \
+ .revision = STRBUF_INIT, \
+}
+
+static void free_stash_info(struct stash_info *info)
+{
+ strbuf_release(&info->revision);
+}
+
+static void assert_stash_like(struct stash_info *info, const char *revision)
+{
+ if (get_oidf(&info->b_commit, "%s^1", revision) ||
+ get_oidf(&info->w_tree, "%s:", revision) ||
+ get_oidf(&info->b_tree, "%s^1:", revision) ||
+ get_oidf(&info->i_tree, "%s^2:", revision))
+ die(_("'%s' is not a stash-like commit"), revision);
+}
+
+static int get_stash_info(struct stash_info *info, int argc, const char **argv)
+{
+ int ret;
+ char *end_of_rev;
+ char *expanded_ref;
+ const char *revision;
+ const char *commit = NULL;
+ struct object_id dummy;
+ struct strbuf symbolic = STRBUF_INIT;
+
+ if (argc > 1) {
+ int i;
+ struct strbuf refs_msg = STRBUF_INIT;
+
+ for (i = 0; i < argc; i++)
+ strbuf_addf(&refs_msg, " '%s'", argv[i]);
+
+ fprintf_ln(stderr, _("Too many revisions specified:%s"),
+ refs_msg.buf);
+ strbuf_release(&refs_msg);
+
+ return -1;
+ }
+
+ if (argc == 1)
+ commit = argv[0];
+
+ if (!commit) {
+ if (!ref_exists(ref_stash)) {
+ fprintf_ln(stderr, _("No stash entries found."));
+ return -1;
+ }
+
+ strbuf_addf(&info->revision, "%s@{0}", ref_stash);
+ } else if (strspn(commit, "0123456789") == strlen(commit)) {
+ strbuf_addf(&info->revision, "%s@{%s}", ref_stash, commit);
+ } else {
+ strbuf_addstr(&info->revision, commit);
+ }
+
+ revision = info->revision.buf;
+
+ if (repo_get_oid(the_repository, revision, &info->w_commit))
+ return error(_("%s is not a valid reference"), revision);
+
+ assert_stash_like(info, revision);
+
+ info->has_u = !get_oidf(&info->u_tree, "%s^3:", revision);
+
+ end_of_rev = strchrnul(revision, '@');
+ strbuf_add(&symbolic, revision, end_of_rev - revision);
+
+ ret = repo_dwim_ref(the_repository, symbolic.buf, symbolic.len,
+ &dummy, &expanded_ref, 0);
+ strbuf_release(&symbolic);
+ switch (ret) {
+ case 0: /* Not found, but valid ref */
+ info->is_stash_ref = 0;
+ break;
+ case 1:
+ info->is_stash_ref = !strcmp(expanded_ref, ref_stash);
+ break;
+ default: /* Invalid or ambiguous */
+ break;
+ }
+
+ free(expanded_ref);
+ return !(ret == 0 || ret == 1);
+}
+
+static int do_clear_stash(void)
+{
+ struct object_id obj;
+ if (repo_get_oid(the_repository, ref_stash, &obj))
+ return 0;
+
+ return delete_ref(NULL, ref_stash, &obj, 0);
+}
+
+static int clear_stash(int argc, const char **argv, const char *prefix)
+{
+ struct option options[] = {
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_clear_usage,
+ PARSE_OPT_STOP_AT_NON_OPTION);
+
+ if (argc)
+ return error(_("git stash clear with arguments is "
+ "unimplemented"));
+
+ return do_clear_stash();
+}
+
+static int reset_tree(struct object_id *i_tree, int update, int reset)
+{
+ int nr_trees = 1;
+ struct unpack_trees_options opts;
+ struct tree_desc t[MAX_UNPACK_TREES];
+ struct tree *tree;
+ struct lock_file lock_file = LOCK_INIT;
+
+ repo_read_index_preload(the_repository, NULL, 0);
+ if (refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL))
+ return -1;
+
+ repo_hold_locked_index(the_repository, &lock_file, LOCK_DIE_ON_ERROR);
+
+ memset(&opts, 0, sizeof(opts));
+
+ tree = parse_tree_indirect(i_tree);
+ if (parse_tree(tree))
+ return -1;
+
+ init_tree_desc(t, tree->buffer, tree->size);
+
+ opts.head_idx = 1;
+ opts.src_index = &the_index;
+ opts.dst_index = &the_index;
+ opts.merge = 1;
+ opts.reset = reset ? UNPACK_RESET_PROTECT_UNTRACKED : 0;
+ opts.update = update;
+ if (update)
+ opts.preserve_ignored = 0; /* FIXME: !overwrite_ignore */
+ opts.fn = oneway_merge;
+
+ if (unpack_trees(nr_trees, t, &opts))
+ return -1;
+
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
+ return error(_("unable to write new index file"));
+
+ return 0;
+}
+
+static int diff_tree_binary(struct strbuf *out, struct object_id *w_commit)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+ const char *w_commit_hex = oid_to_hex(w_commit);
+
+ /*
+ * Diff-tree would not be very hard to replace with a native function,
+ * however it should be done together with apply_cached.
+ */
+ cp.git_cmd = 1;
+ strvec_pushl(&cp.args, "diff-tree", "--binary", NULL);
+ strvec_pushf(&cp.args, "%s^2^..%s^2", w_commit_hex, w_commit_hex);
+
+ return pipe_command(&cp, NULL, 0, out, 0, NULL, 0);
+}
+
+static int apply_cached(struct strbuf *out)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ /*
+ * Apply currently only reads either from stdin or a file, thus
+ * apply_all_patches would have to be updated to optionally take a
+ * buffer.
+ */
+ cp.git_cmd = 1;
+ strvec_pushl(&cp.args, "apply", "--cached", NULL);
+ return pipe_command(&cp, out->buf, out->len, NULL, 0, NULL, 0);
+}
+
+static int reset_head(void)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ /*
+ * Reset is overall quite simple, however there is no current public
+ * API for resetting.
+ */
+ cp.git_cmd = 1;
+ strvec_pushl(&cp.args, "reset", "--quiet", "--refresh", NULL);
+
+ return run_command(&cp);
+}
+
+static int is_path_a_directory(const char *path)
+{
+ /*
+ * This function differs from abspath.c:is_directory() in that
+ * here we use lstat() instead of stat(); we do not want to
+ * follow symbolic links here.
+ */
+ struct stat st;
+ return (!lstat(path, &st) && S_ISDIR(st.st_mode));
+}
+
+static void add_diff_to_buf(struct diff_queue_struct *q,
+ struct diff_options *options UNUSED,
+ void *data)
+{
+ int i;
+
+ for (i = 0; i < q->nr; i++) {
+ if (is_path_a_directory(q->queue[i]->one->path))
+ continue;
+
+ strbuf_addstr(data, q->queue[i]->one->path);
+
+ /* NUL-terminate: will be fed to update-index -z */
+ strbuf_addch(data, '\0');
+ }
+}
+
+static int restore_untracked(struct object_id *u_tree)
+{
+ int res;
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ /*
+ * We need to run restore files from a given index, but without
+ * affecting the current index, so we use GIT_INDEX_FILE with
+ * run_command to fork processes that will not interfere.
+ */
+ cp.git_cmd = 1;
+ strvec_push(&cp.args, "read-tree");
+ strvec_push(&cp.args, oid_to_hex(u_tree));
+ strvec_pushf(&cp.env, "GIT_INDEX_FILE=%s",
+ stash_index_path.buf);
+ if (run_command(&cp)) {
+ remove_path(stash_index_path.buf);
+ return -1;
+ }
+
+ child_process_init(&cp);
+ cp.git_cmd = 1;
+ strvec_pushl(&cp.args, "checkout-index", "--all", NULL);
+ strvec_pushf(&cp.env, "GIT_INDEX_FILE=%s",
+ stash_index_path.buf);
+
+ res = run_command(&cp);
+ remove_path(stash_index_path.buf);
+ return res;
+}
+
+static void unstage_changes_unless_new(struct object_id *orig_tree)
+{
+ /*
+ * When we enter this function, there has been a clean merge of
+ * relevant trees, and the merge logic always stages whatever merges
+ * cleanly. We want to unstage those changes, unless it corresponds
+ * to a file that didn't exist as of orig_tree.
+ *
+ * However, if any SKIP_WORKTREE path is modified relative to
+ * orig_tree, then we want to clear the SKIP_WORKTREE bit and write
+ * it to the worktree before unstaging.
+ */
+
+ struct checkout state = CHECKOUT_INIT;
+ struct diff_options diff_opts;
+ struct lock_file lock = LOCK_INIT;
+ int i;
+
+ /* If any entries have skip_worktree set, we'll have to check 'em out */
+ state.force = 1;
+ state.quiet = 1;
+ state.refresh_cache = 1;
+ state.istate = &the_index;
+
+ /*
+ * Step 1: get a difference between orig_tree (which corresponding
+ * to the index before a merge was run) and the current index
+ * (reflecting the changes brought in by the merge).
+ */
+ repo_diff_setup(the_repository, &diff_opts);
+ diff_opts.flags.recursive = 1;
+ diff_opts.detect_rename = 0;
+ diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT;
+ diff_setup_done(&diff_opts);
+
+ do_diff_cache(orig_tree, &diff_opts);
+ diffcore_std(&diff_opts);
+
+ /* Iterate over the paths that changed due to the merge... */
+ for (i = 0; i < diff_queued_diff.nr; i++) {
+ struct diff_filepair *p;
+ struct cache_entry *ce;
+ int pos;
+
+ /* Look up the path's position in the current index. */
+ p = diff_queued_diff.queue[i];
+ pos = index_name_pos(&the_index, p->two->path,
+ strlen(p->two->path));
+
+ /*
+ * Step 2: Place changes in the working tree
+ *
+ * Stash is about restoring changes *to the working tree*.
+ * So if the merge successfully got a new version of some
+ * path, but left it out of the working tree, then clear the
+ * SKIP_WORKTREE bit and write it to the working tree.
+ */
+ if (pos >= 0 && ce_skip_worktree(the_index.cache[pos])) {
+ struct stat st;
+
+ ce = the_index.cache[pos];
+ if (!lstat(ce->name, &st)) {
+ /* Conflicting path present; relocate it */
+ struct strbuf new_path = STRBUF_INIT;
+ int fd;
+
+ strbuf_addf(&new_path,
+ "%s.stash.XXXXXX", ce->name);
+ fd = xmkstemp(new_path.buf);
+ close(fd);
+ printf(_("WARNING: Untracked file in way of "
+ "tracked file! Renaming\n "
+ " %s -> %s\n"
+ " to make room.\n"),
+ ce->name, new_path.buf);
+ if (rename(ce->name, new_path.buf))
+ die("Failed to move %s to %s\n",
+ ce->name, new_path.buf);
+ strbuf_release(&new_path);
+ }
+ checkout_entry(ce, &state, NULL, NULL);
+ ce->ce_flags &= ~CE_SKIP_WORKTREE;
+ }
+
+ /*
+ * Step 3: "unstage" changes, as long as they are still tracked
+ */
+ if (p->one->oid_valid) {
+ /*
+ * Path existed in orig_tree; restore index entry
+ * from that tree in order to "unstage" the changes.
+ */
+ int option = ADD_CACHE_OK_TO_REPLACE;
+ if (pos < 0)
+ option = ADD_CACHE_OK_TO_ADD;
+
+ ce = make_cache_entry(&the_index,
+ p->one->mode,
+ &p->one->oid,
+ p->one->path,
+ 0, 0);
+ add_index_entry(&the_index, ce, option);
+ }
+ }
+ diff_flush(&diff_opts);
+
+ /*
+ * Step 4: write the new index to disk
+ */
+ repo_hold_locked_index(the_repository, &lock, LOCK_DIE_ON_ERROR);
+ if (write_locked_index(&the_index, &lock,
+ COMMIT_LOCK | SKIP_IF_UNCHANGED))
+ die(_("Unable to write index."));
+}
+
+static int do_apply_stash(const char *prefix, struct stash_info *info,
+ int index, int quiet)
+{
+ int clean, ret;
+ int has_index = index;
+ struct merge_options o;
+ struct object_id c_tree;
+ struct object_id index_tree;
+ struct tree *head, *merge, *merge_base;
+ struct lock_file lock = LOCK_INIT;
+
+ repo_read_index_preload(the_repository, NULL, 0);
+ if (repo_refresh_and_write_index(the_repository, REFRESH_QUIET, 0, 0,
+ NULL, NULL, NULL))
+ return -1;
+
+ if (write_index_as_tree(&c_tree, &the_index, get_index_file(), 0,
+ NULL))
+ return error(_("cannot apply a stash in the middle of a merge"));
+
+ if (index) {
+ if (oideq(&info->b_tree, &info->i_tree) ||
+ oideq(&c_tree, &info->i_tree)) {
+ has_index = 0;
+ } else {
+ struct strbuf out = STRBUF_INIT;
+
+ if (diff_tree_binary(&out, &info->w_commit)) {
+ strbuf_release(&out);
+ return error(_("could not generate diff %s^!."),
+ oid_to_hex(&info->w_commit));
+ }
+
+ ret = apply_cached(&out);
+ strbuf_release(&out);
+ if (ret)
+ return error(_("conflicts in index. "
+ "Try without --index."));
+
+ discard_index(&the_index);
+ repo_read_index(the_repository);
+ if (write_index_as_tree(&index_tree, &the_index,
+ get_index_file(), 0, NULL))
+ return error(_("could not save index tree"));
+
+ reset_head();
+ discard_index(&the_index);
+ repo_read_index(the_repository);
+ }
+ }
+
+ init_merge_options(&o, the_repository);
+
+ o.branch1 = "Updated upstream";
+ o.branch2 = "Stashed changes";
+ o.ancestor = "Stash base";
+
+ if (oideq(&info->b_tree, &c_tree))
+ o.branch1 = "Version stash was based on";
+
+ if (quiet)
+ o.verbosity = 0;
+
+ if (o.verbosity >= 3)
+ printf_ln(_("Merging %s with %s"), o.branch1, o.branch2);
+
+ head = lookup_tree(o.repo, &c_tree);
+ merge = lookup_tree(o.repo, &info->w_tree);
+ merge_base = lookup_tree(o.repo, &info->b_tree);
+
+ repo_hold_locked_index(o.repo, &lock, LOCK_DIE_ON_ERROR);
+ clean = merge_ort_nonrecursive(&o, head, merge, merge_base);
+
+ /*
+ * If 'clean' >= 0, reverse the value for 'ret' so 'ret' is 0 when the
+ * merge was clean, and nonzero if the merge was unclean or encountered
+ * an error.
+ */
+ ret = clean >= 0 ? !clean : clean;
+
+ if (ret < 0)
+ rollback_lock_file(&lock);
+ else if (write_locked_index(o.repo->index, &lock,
+ COMMIT_LOCK | SKIP_IF_UNCHANGED))
+ ret = error(_("could not write index"));
+
+ if (ret) {
+ repo_rerere(the_repository, 0);
+
+ if (index)
+ fprintf_ln(stderr, _("Index was not unstashed."));
+
+ goto restore_untracked;
+ }
+
+ if (has_index) {
+ if (reset_tree(&index_tree, 0, 0))
+ ret = -1;
+ } else {
+ unstage_changes_unless_new(&c_tree);
+ }
+
+restore_untracked:
+ if (info->has_u && restore_untracked(&info->u_tree))
+ ret = error(_("could not restore untracked files from stash"));
+
+ if (!quiet) {
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ /*
+ * Status is quite simple and could be replaced with calls to
+ * wt_status in the future, but it adds complexities which may
+ * require more tests.
+ */
+ cp.git_cmd = 1;
+ cp.dir = prefix;
+ strvec_pushf(&cp.env, GIT_WORK_TREE_ENVIRONMENT"=%s",
+ absolute_path(get_git_work_tree()));
+ strvec_pushf(&cp.env, GIT_DIR_ENVIRONMENT"=%s",
+ absolute_path(get_git_dir()));
+ strvec_push(&cp.args, "status");
+ run_command(&cp);
+ }
+
+ return ret;
+}
+
+static int apply_stash(int argc, const char **argv, const char *prefix)
+{
+ int ret = -1;
+ int quiet = 0;
+ int index = 0;
+ struct stash_info info = STASH_INFO_INIT;
+ struct option options[] = {
+ OPT__QUIET(&quiet, N_("be quiet, only report errors")),
+ OPT_BOOL(0, "index", &index,
+ N_("attempt to recreate the index")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_apply_usage, 0);
+
+ if (get_stash_info(&info, argc, argv))
+ goto cleanup;
+
+ ret = do_apply_stash(prefix, &info, index, quiet);
+cleanup:
+ free_stash_info(&info);
+ return ret;
+}
+
+static int reject_reflog_ent(struct object_id *ooid UNUSED,
+ struct object_id *noid UNUSED,
+ const char *email UNUSED,
+ timestamp_t timestamp UNUSED,
+ int tz UNUSED, const char *message UNUSED,
+ void *cb_data UNUSED)
+{
+ return 1;
+}
+
+static int reflog_is_empty(const char *refname)
+{
+ return !for_each_reflog_ent(refname, reject_reflog_ent, NULL);
+}
+
+static int do_drop_stash(struct stash_info *info, int quiet)
+{
+ if (!reflog_delete(info->revision.buf,
+ EXPIRE_REFLOGS_REWRITE | EXPIRE_REFLOGS_UPDATE_REF,
+ 0)) {
+ if (!quiet)
+ printf_ln(_("Dropped %s (%s)"), info->revision.buf,
+ oid_to_hex(&info->w_commit));
+ } else {
+ return error(_("%s: Could not drop stash entry"),
+ info->revision.buf);
+ }
+
+ if (reflog_is_empty(ref_stash))
+ do_clear_stash();
+
+ return 0;
+}
+
+static int get_stash_info_assert(struct stash_info *info, int argc,
+ const char **argv)
+{
+ int ret = get_stash_info(info, argc, argv);
+
+ if (ret < 0)
+ return ret;
+
+ if (!info->is_stash_ref)
+ return error(_("'%s' is not a stash reference"), info->revision.buf);
+
+ return 0;
+}
+
+static int drop_stash(int argc, const char **argv, const char *prefix)
+{
+ int ret = -1;
+ int quiet = 0;
+ struct stash_info info = STASH_INFO_INIT;
+ struct option options[] = {
+ OPT__QUIET(&quiet, N_("be quiet, only report errors")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_drop_usage, 0);
+
+ if (get_stash_info_assert(&info, argc, argv))
+ goto cleanup;
+
+ ret = do_drop_stash(&info, quiet);
+cleanup:
+ free_stash_info(&info);
+ return ret;
+}
+
+static int pop_stash(int argc, const char **argv, const char *prefix)
+{
+ int ret = -1;
+ int index = 0;
+ int quiet = 0;
+ struct stash_info info = STASH_INFO_INIT;
+ struct option options[] = {
+ OPT__QUIET(&quiet, N_("be quiet, only report errors")),
+ OPT_BOOL(0, "index", &index,
+ N_("attempt to recreate the index")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_pop_usage, 0);
+
+ if (get_stash_info_assert(&info, argc, argv))
+ goto cleanup;
+
+ if ((ret = do_apply_stash(prefix, &info, index, quiet)))
+ printf_ln(_("The stash entry is kept in case "
+ "you need it again."));
+ else
+ ret = do_drop_stash(&info, quiet);
+
+cleanup:
+ free_stash_info(&info);
+ return ret;
+}
+
+static int branch_stash(int argc, const char **argv, const char *prefix)
+{
+ int ret = -1;
+ const char *branch = NULL;
+ struct stash_info info = STASH_INFO_INIT;
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct option options[] = {
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_branch_usage, 0);
+
+ if (!argc) {
+ fprintf_ln(stderr, _("No branch name specified"));
+ return -1;
+ }
+
+ branch = argv[0];
+
+ if (get_stash_info(&info, argc - 1, argv + 1))
+ goto cleanup;
+
+ cp.git_cmd = 1;
+ strvec_pushl(&cp.args, "checkout", "-b", NULL);
+ strvec_push(&cp.args, branch);
+ strvec_push(&cp.args, oid_to_hex(&info.b_commit));
+ ret = run_command(&cp);
+ if (!ret)
+ ret = do_apply_stash(prefix, &info, 1, 0);
+ if (!ret && info.is_stash_ref)
+ ret = do_drop_stash(&info, 0);
+
+cleanup:
+ free_stash_info(&info);
+ return ret;
+}
+
+static int list_stash(int argc, const char **argv, const char *prefix)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct option options[] = {
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_list_usage,
+ PARSE_OPT_KEEP_UNKNOWN_OPT);
+
+ if (!ref_exists(ref_stash))
+ return 0;
+
+ cp.git_cmd = 1;
+ strvec_pushl(&cp.args, "log", "--format=%gd: %gs", "-g",
+ "--first-parent", NULL);
+ strvec_pushv(&cp.args, argv);
+ strvec_push(&cp.args, ref_stash);
+ strvec_push(&cp.args, "--");
+ return run_command(&cp);
+}
+
+static int show_stat = 1;
+static int show_patch;
+static int show_include_untracked;
+
+static int git_stash_config(const char *var, const char *value,
+ const struct config_context *ctx, void *cb)
+{
+ if (!strcmp(var, "stash.showstat")) {
+ show_stat = git_config_bool(var, value);
+ return 0;
+ }
+ if (!strcmp(var, "stash.showpatch")) {
+ show_patch = git_config_bool(var, value);
+ return 0;
+ }
+ if (!strcmp(var, "stash.showincludeuntracked")) {
+ show_include_untracked = git_config_bool(var, value);
+ return 0;
+ }
+ return git_diff_basic_config(var, value, ctx, cb);
+}
+
+static void diff_include_untracked(const struct stash_info *info, struct diff_options *diff_opt)
+{
+ const struct object_id *oid[] = { &info->w_commit, &info->u_tree };
+ struct tree *tree[ARRAY_SIZE(oid)];
+ struct tree_desc tree_desc[ARRAY_SIZE(oid)];
+ struct unpack_trees_options unpack_tree_opt = { 0 };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(oid); i++) {
+ tree[i] = parse_tree_indirect(oid[i]);
+ if (parse_tree(tree[i]) < 0)
+ die(_("failed to parse tree"));
+ init_tree_desc(&tree_desc[i], tree[i]->buffer, tree[i]->size);
+ }
+
+ unpack_tree_opt.head_idx = -1;
+ unpack_tree_opt.src_index = &the_index;
+ unpack_tree_opt.dst_index = &the_index;
+ unpack_tree_opt.merge = 1;
+ unpack_tree_opt.fn = stash_worktree_untracked_merge;
+
+ if (unpack_trees(ARRAY_SIZE(tree_desc), tree_desc, &unpack_tree_opt))
+ die(_("failed to unpack trees"));
+
+ do_diff_cache(&info->b_commit, diff_opt);
+}
+
+static int show_stash(int argc, const char **argv, const char *prefix)
+{
+ int i;
+ int ret = -1;
+ struct stash_info info = STASH_INFO_INIT;
+ struct rev_info rev;
+ struct strvec stash_args = STRVEC_INIT;
+ struct strvec revision_args = STRVEC_INIT;
+ enum {
+ UNTRACKED_NONE,
+ UNTRACKED_INCLUDE,
+ UNTRACKED_ONLY
+ } show_untracked = show_include_untracked ? UNTRACKED_INCLUDE : UNTRACKED_NONE;
+ struct option options[] = {
+ OPT_SET_INT('u', "include-untracked", &show_untracked,
+ N_("include untracked files in the stash"),
+ UNTRACKED_INCLUDE),
+ OPT_SET_INT_F(0, "only-untracked", &show_untracked,
+ N_("only show untracked files in the stash"),
+ UNTRACKED_ONLY, PARSE_OPT_NONEG),
+ OPT_END()
+ };
+ int do_usage = 0;
+
+ init_diff_ui_defaults();
+ git_config(git_diff_ui_config, NULL);
+ repo_init_revisions(the_repository, &rev, prefix);
+
+ argc = parse_options(argc, argv, prefix, options, git_stash_show_usage,
+ PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN_OPT |
+ PARSE_OPT_KEEP_DASHDASH);
+
+ strvec_push(&revision_args, argv[0]);
+ for (i = 1; i < argc; i++) {
+ if (argv[i][0] != '-')
+ strvec_push(&stash_args, argv[i]);
+ else
+ strvec_push(&revision_args, argv[i]);
+ }
+
+ if (get_stash_info(&info, stash_args.nr, stash_args.v))
+ goto cleanup;
+
+ /*
+ * The config settings are applied only if there are not passed
+ * any options.
+ */
+ if (revision_args.nr == 1) {
+ if (show_stat)
+ rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT;
+
+ if (show_patch)
+ rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
+
+ if (!show_stat && !show_patch) {
+ ret = 0;
+ goto cleanup;
+ }
+ }
+
+ argc = setup_revisions(revision_args.nr, revision_args.v, &rev, NULL);
+ if (argc > 1)
+ goto usage;
+ if (!rev.diffopt.output_format) {
+ rev.diffopt.output_format = DIFF_FORMAT_PATCH;
+ diff_setup_done(&rev.diffopt);
+ }
+
+ rev.diffopt.flags.recursive = 1;
+ setup_diff_pager(&rev.diffopt);
+ switch (show_untracked) {
+ case UNTRACKED_NONE:
+ diff_tree_oid(&info.b_commit, &info.w_commit, "", &rev.diffopt);
+ break;
+ case UNTRACKED_ONLY:
+ if (info.has_u)
+ diff_root_tree_oid(&info.u_tree, "", &rev.diffopt);
+ break;
+ case UNTRACKED_INCLUDE:
+ if (info.has_u)
+ diff_include_untracked(&info, &rev.diffopt);
+ else
+ diff_tree_oid(&info.b_commit, &info.w_commit, "", &rev.diffopt);
+ break;
+ }
+ log_tree_diff_flush(&rev);
+
+ ret = diff_result_code(&rev.diffopt);
+cleanup:
+ strvec_clear(&stash_args);
+ free_stash_info(&info);
+ release_revisions(&rev);
+ if (do_usage)
+ usage_with_options(git_stash_show_usage, options);
+ return ret;
+usage:
+ do_usage = 1;
+ goto cleanup;
+}
+
+static int do_store_stash(const struct object_id *w_commit, const char *stash_msg,
+ int quiet)
+{
+ struct stash_info info;
+ char revision[GIT_MAX_HEXSZ];
+
+ oid_to_hex_r(revision, w_commit);
+ assert_stash_like(&info, revision);
+
+ if (!stash_msg)
+ stash_msg = "Created via \"git stash store\".";
+
+ if (update_ref(stash_msg, ref_stash, w_commit, NULL,
+ REF_FORCE_CREATE_REFLOG,
+ quiet ? UPDATE_REFS_QUIET_ON_ERR :
+ UPDATE_REFS_MSG_ON_ERR)) {
+ if (!quiet) {
+ fprintf_ln(stderr, _("Cannot update %s with %s"),
+ ref_stash, oid_to_hex(w_commit));
+ }
+ return -1;
+ }
+
+ return 0;
+}
+
+static int store_stash(int argc, const char **argv, const char *prefix)
+{
+ int quiet = 0;
+ const char *stash_msg = NULL;
+ struct object_id obj;
+ struct object_context dummy;
+ struct option options[] = {
+ OPT__QUIET(&quiet, N_("be quiet")),
+ OPT_STRING('m', "message", &stash_msg, "message",
+ N_("stash message")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_store_usage,
+ PARSE_OPT_KEEP_UNKNOWN_OPT);
+
+ if (argc != 1) {
+ if (!quiet)
+ fprintf_ln(stderr, _("\"git stash store\" requires one "
+ "<commit> argument"));
+ return -1;
+ }
+
+ if (get_oid_with_context(the_repository,
+ argv[0], quiet ? GET_OID_QUIETLY : 0, &obj,
+ &dummy)) {
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot update %s with %s"),
+ ref_stash, argv[0]);
+ return -1;
+ }
+
+ return do_store_stash(&obj, stash_msg, quiet);
+}
+
+static void add_pathspecs(struct strvec *args,
+ const struct pathspec *ps) {
+ int i;
+
+ for (i = 0; i < ps->nr; i++)
+ strvec_push(args, ps->items[i].original);
+}
+
+/*
+ * `untracked_files` will be filled with the names of untracked files.
+ * The return value is:
+ *
+ * = 0 if there are not any untracked files
+ * > 0 if there are untracked files
+ */
+static int get_untracked_files(const struct pathspec *ps, int include_untracked,
+ struct strbuf *untracked_files)
+{
+ int i;
+ int found = 0;
+ struct dir_struct dir = DIR_INIT;
+
+ if (include_untracked != INCLUDE_ALL_FILES)
+ setup_standard_excludes(&dir);
+
+ fill_directory(&dir, the_repository->index, ps);
+ for (i = 0; i < dir.nr; i++) {
+ struct dir_entry *ent = dir.entries[i];
+ found++;
+ strbuf_addstr(untracked_files, ent->name);
+ /* NUL-terminate: will be fed to update-index -z */
+ strbuf_addch(untracked_files, '\0');
+ }
+
+ dir_clear(&dir);
+ return found;
+}
+
+/*
+ * The return value of `check_changes_tracked_files()` can be:
+ *
+ * < 0 if there was an error
+ * = 0 if there are no changes.
+ * > 0 if there are changes.
+ */
+static int check_changes_tracked_files(const struct pathspec *ps)
+{
+ struct rev_info rev;
+ struct object_id dummy;
+ int ret = 0;
+
+ /* No initial commit. */
+ if (repo_get_oid(the_repository, "HEAD", &dummy))
+ return -1;
+
+ if (repo_read_index(the_repository) < 0)
+ return -1;
+
+ repo_init_revisions(the_repository, &rev, NULL);
+ copy_pathspec(&rev.prune_data, ps);
+
+ rev.diffopt.flags.quick = 1;
+ rev.diffopt.flags.ignore_submodules = 1;
+ rev.abbrev = 0;
+
+ add_head_to_pending(&rev);
+ diff_setup_done(&rev.diffopt);
+
+ run_diff_index(&rev, DIFF_INDEX_CACHED);
+ if (diff_result_code(&rev.diffopt)) {
+ ret = 1;
+ goto done;
+ }
+
+ run_diff_files(&rev, 0);
+ if (diff_result_code(&rev.diffopt)) {
+ ret = 1;
+ goto done;
+ }
+
+done:
+ release_revisions(&rev);
+ return ret;
+}
+
+/*
+ * The function will fill `untracked_files` with the names of untracked files
+ * It will return 1 if there were any changes and 0 if there were not.
+ */
+static int check_changes(const struct pathspec *ps, int include_untracked,
+ struct strbuf *untracked_files)
+{
+ int ret = 0;
+ if (check_changes_tracked_files(ps))
+ ret = 1;
+
+ if (include_untracked && get_untracked_files(ps, include_untracked,
+ untracked_files))
+ ret = 1;
+
+ return ret;
+}
+
+static int save_untracked_files(struct stash_info *info, struct strbuf *msg,
+ struct strbuf files)
+{
+ int ret = 0;
+ struct strbuf untracked_msg = STRBUF_INIT;
+ struct child_process cp_upd_index = CHILD_PROCESS_INIT;
+ struct index_state istate = INDEX_STATE_INIT(the_repository);
+
+ cp_upd_index.git_cmd = 1;
+ strvec_pushl(&cp_upd_index.args, "update-index", "-z", "--add",
+ "--remove", "--stdin", NULL);
+ strvec_pushf(&cp_upd_index.env, "GIT_INDEX_FILE=%s",
+ stash_index_path.buf);
+
+ strbuf_addf(&untracked_msg, "untracked files on %s\n", msg->buf);
+ if (pipe_command(&cp_upd_index, files.buf, files.len, NULL, 0,
+ NULL, 0)) {
+ ret = -1;
+ goto done;
+ }
+
+ if (write_index_as_tree(&info->u_tree, &istate, stash_index_path.buf, 0,
+ NULL)) {
+ ret = -1;
+ goto done;
+ }
+
+ if (commit_tree(untracked_msg.buf, untracked_msg.len,
+ &info->u_tree, NULL, &info->u_commit, NULL, NULL)) {
+ ret = -1;
+ goto done;
+ }
+
+done:
+ release_index(&istate);
+ strbuf_release(&untracked_msg);
+ remove_path(stash_index_path.buf);
+ return ret;
+}
+
+static int stash_staged(struct stash_info *info, struct strbuf *out_patch,
+ int quiet)
+{
+ int ret = 0;
+ struct child_process cp_diff_tree = CHILD_PROCESS_INIT;
+ struct index_state istate = INDEX_STATE_INIT(the_repository);
+
+ if (write_index_as_tree(&info->w_tree, &istate, the_repository->index_file,
+ 0, NULL)) {
+ ret = -1;
+ goto done;
+ }
+
+ cp_diff_tree.git_cmd = 1;
+ strvec_pushl(&cp_diff_tree.args, "diff-tree", "-p", "-U1", "HEAD",
+ oid_to_hex(&info->w_tree), "--", NULL);
+ if (pipe_command(&cp_diff_tree, NULL, 0, out_patch, 0, NULL, 0)) {
+ ret = -1;
+ goto done;
+ }
+
+ if (!out_patch->len) {
+ if (!quiet)
+ fprintf_ln(stderr, _("No staged changes"));
+ ret = 1;
+ }
+
+done:
+ release_index(&istate);
+ return ret;
+}
+
+static int stash_patch(struct stash_info *info, const struct pathspec *ps,
+ struct strbuf *out_patch, int quiet)
+{
+ int ret = 0;
+ struct child_process cp_read_tree = CHILD_PROCESS_INIT;
+ struct child_process cp_diff_tree = CHILD_PROCESS_INIT;
+ struct index_state istate = INDEX_STATE_INIT(the_repository);
+ char *old_index_env = NULL, *old_repo_index_file;
+
+ remove_path(stash_index_path.buf);
+
+ cp_read_tree.git_cmd = 1;
+ strvec_pushl(&cp_read_tree.args, "read-tree", "HEAD", NULL);
+ strvec_pushf(&cp_read_tree.env, "GIT_INDEX_FILE=%s",
+ stash_index_path.buf);
+ if (run_command(&cp_read_tree)) {
+ ret = -1;
+ goto done;
+ }
+
+ /* Find out what the user wants. */
+ old_repo_index_file = the_repository->index_file;
+ the_repository->index_file = stash_index_path.buf;
+ old_index_env = xstrdup_or_null(getenv(INDEX_ENVIRONMENT));
+ setenv(INDEX_ENVIRONMENT, the_repository->index_file, 1);
+
+ ret = !!run_add_p(the_repository, ADD_P_STASH, NULL, ps);
+
+ the_repository->index_file = old_repo_index_file;
+ if (old_index_env && *old_index_env)
+ setenv(INDEX_ENVIRONMENT, old_index_env, 1);
+ else
+ unsetenv(INDEX_ENVIRONMENT);
+ FREE_AND_NULL(old_index_env);
+
+ /* State of the working tree. */
+ if (write_index_as_tree(&info->w_tree, &istate, stash_index_path.buf, 0,
+ NULL)) {
+ ret = -1;
+ goto done;
+ }
+
+ cp_diff_tree.git_cmd = 1;
+ strvec_pushl(&cp_diff_tree.args, "diff-tree", "-p", "-U1", "HEAD",
+ oid_to_hex(&info->w_tree), "--", NULL);
+ if (pipe_command(&cp_diff_tree, NULL, 0, out_patch, 0, NULL, 0)) {
+ ret = -1;
+ goto done;
+ }
+
+ if (!out_patch->len) {
+ if (!quiet)
+ fprintf_ln(stderr, _("No changes selected"));
+ ret = 1;
+ }
+
+done:
+ release_index(&istate);
+ remove_path(stash_index_path.buf);
+ return ret;
+}
+
+static int stash_working_tree(struct stash_info *info, const struct pathspec *ps)
+{
+ int ret = 0;
+ struct rev_info rev;
+ struct child_process cp_upd_index = CHILD_PROCESS_INIT;
+ struct strbuf diff_output = STRBUF_INIT;
+ struct index_state istate = INDEX_STATE_INIT(the_repository);
+
+ repo_init_revisions(the_repository, &rev, NULL);
+ copy_pathspec(&rev.prune_data, ps);
+
+ set_alternate_index_output(stash_index_path.buf);
+ if (reset_tree(&info->i_tree, 0, 0)) {
+ ret = -1;
+ goto done;
+ }
+ set_alternate_index_output(NULL);
+
+ rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
+ rev.diffopt.format_callback = add_diff_to_buf;
+ rev.diffopt.format_callback_data = &diff_output;
+
+ if (repo_read_index_preload(the_repository, &rev.diffopt.pathspec, 0) < 0) {
+ ret = -1;
+ goto done;
+ }
+
+ add_pending_object(&rev, parse_object(the_repository, &info->b_commit),
+ "");
+ run_diff_index(&rev, 0);
+
+ cp_upd_index.git_cmd = 1;
+ strvec_pushl(&cp_upd_index.args, "update-index",
+ "--ignore-skip-worktree-entries",
+ "-z", "--add", "--remove", "--stdin", NULL);
+ strvec_pushf(&cp_upd_index.env, "GIT_INDEX_FILE=%s",
+ stash_index_path.buf);
+
+ if (pipe_command(&cp_upd_index, diff_output.buf, diff_output.len,
+ NULL, 0, NULL, 0)) {
+ ret = -1;
+ goto done;
+ }
+
+ if (write_index_as_tree(&info->w_tree, &istate, stash_index_path.buf, 0,
+ NULL)) {
+ ret = -1;
+ goto done;
+ }
+
+done:
+ release_index(&istate);
+ release_revisions(&rev);
+ strbuf_release(&diff_output);
+ remove_path(stash_index_path.buf);
+ return ret;
+}
+
+static int do_create_stash(const struct pathspec *ps, struct strbuf *stash_msg_buf,
+ int include_untracked, int patch_mode, int only_staged,
+ struct stash_info *info, struct strbuf *patch,
+ int quiet)
+{
+ int ret = 0;
+ int flags = 0;
+ int untracked_commit_option = 0;
+ const char *head_short_sha1 = NULL;
+ const char *branch_ref = NULL;
+ const char *branch_name = "(no branch)";
+ struct commit *head_commit = NULL;
+ struct commit_list *parents = NULL;
+ struct strbuf msg = STRBUF_INIT;
+ struct strbuf commit_tree_label = STRBUF_INIT;
+ struct strbuf untracked_files = STRBUF_INIT;
+
+ prepare_fallback_ident("git stash", "git@stash");
+
+ repo_read_index_preload(the_repository, NULL, 0);
+ if (repo_refresh_and_write_index(the_repository, REFRESH_QUIET, 0, 0,
+ NULL, NULL, NULL) < 0) {
+ ret = -1;
+ goto done;
+ }
+
+ if (repo_get_oid(the_repository, "HEAD", &info->b_commit)) {
+ if (!quiet)
+ fprintf_ln(stderr, _("You do not have "
+ "the initial commit yet"));
+ ret = -1;
+ goto done;
+ } else {
+ head_commit = lookup_commit(the_repository, &info->b_commit);
+ }
+
+ if (!check_changes(ps, include_untracked, &untracked_files)) {
+ ret = 1;
+ goto done;
+ }
+
+ branch_ref = resolve_ref_unsafe("HEAD", 0, NULL, &flags);
+ if (flags & REF_ISSYMREF)
+ skip_prefix(branch_ref, "refs/heads/", &branch_name);
+ head_short_sha1 = repo_find_unique_abbrev(the_repository,
+ &head_commit->object.oid,
+ DEFAULT_ABBREV);
+ strbuf_addf(&msg, "%s: %s ", branch_name, head_short_sha1);
+ pp_commit_easy(CMIT_FMT_ONELINE, head_commit, &msg);
+
+ strbuf_addf(&commit_tree_label, "index on %s\n", msg.buf);
+ commit_list_insert(head_commit, &parents);
+ if (write_index_as_tree(&info->i_tree, &the_index, get_index_file(), 0,
+ NULL) ||
+ commit_tree(commit_tree_label.buf, commit_tree_label.len,
+ &info->i_tree, parents, &info->i_commit, NULL, NULL)) {
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot save the current "
+ "index state"));
+ ret = -1;
+ goto done;
+ }
+
+ if (include_untracked) {
+ if (save_untracked_files(info, &msg, untracked_files)) {
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot save "
+ "the untracked files"));
+ ret = -1;
+ goto done;
+ }
+ untracked_commit_option = 1;
+ }
+ if (patch_mode) {
+ ret = stash_patch(info, ps, patch, quiet);
+ if (ret < 0) {
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot save the current "
+ "worktree state"));
+ goto done;
+ } else if (ret > 0) {
+ goto done;
+ }
+ } else if (only_staged) {
+ ret = stash_staged(info, patch, quiet);
+ if (ret < 0) {
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot save the current "
+ "staged state"));
+ goto done;
+ } else if (ret > 0) {
+ goto done;
+ }
+ } else {
+ if (stash_working_tree(info, ps)) {
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot save the current "
+ "worktree state"));
+ ret = -1;
+ goto done;
+ }
+ }
+
+ if (!stash_msg_buf->len)
+ strbuf_addf(stash_msg_buf, "WIP on %s", msg.buf);
+ else
+ strbuf_insertf(stash_msg_buf, 0, "On %s: ", branch_name);
+
+ /*
+ * `parents` will be empty after calling `commit_tree()`, so there is
+ * no need to call `free_commit_list()`
+ */
+ parents = NULL;
+ if (untracked_commit_option)
+ commit_list_insert(lookup_commit(the_repository,
+ &info->u_commit),
+ &parents);
+ commit_list_insert(lookup_commit(the_repository, &info->i_commit),
+ &parents);
+ commit_list_insert(head_commit, &parents);
+
+ if (commit_tree(stash_msg_buf->buf, stash_msg_buf->len, &info->w_tree,
+ parents, &info->w_commit, NULL, NULL)) {
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot record "
+ "working tree state"));
+ ret = -1;
+ goto done;
+ }
+
+done:
+ strbuf_release(&commit_tree_label);
+ strbuf_release(&msg);
+ strbuf_release(&untracked_files);
+ return ret;
+}
+
+static int create_stash(int argc, const char **argv, const char *prefix UNUSED)
+{
+ int ret;
+ struct strbuf stash_msg_buf = STRBUF_INIT;
+ struct stash_info info = STASH_INFO_INIT;
+ struct pathspec ps;
+
+ /* Starting with argv[1], since argv[0] is "create" */
+ strbuf_join_argv(&stash_msg_buf, argc - 1, ++argv, ' ');
+
+ memset(&ps, 0, sizeof(ps));
+ if (!check_changes_tracked_files(&ps))
+ return 0;
+
+ ret = do_create_stash(&ps, &stash_msg_buf, 0, 0, 0, &info,
+ NULL, 0);
+ if (!ret)
+ printf_ln("%s", oid_to_hex(&info.w_commit));
+
+ free_stash_info(&info);
+ strbuf_release(&stash_msg_buf);
+ return ret;
+}
+
+static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int quiet,
+ int keep_index, int patch_mode, int include_untracked, int only_staged)
+{
+ int ret = 0;
+ struct stash_info info = STASH_INFO_INIT;
+ struct strbuf patch = STRBUF_INIT;
+ struct strbuf stash_msg_buf = STRBUF_INIT;
+ struct strbuf untracked_files = STRBUF_INIT;
+
+ if (patch_mode && keep_index == -1)
+ keep_index = 1;
+
+ if (patch_mode && include_untracked) {
+ fprintf_ln(stderr, _("Can't use --patch and --include-untracked"
+ " or --all at the same time"));
+ ret = -1;
+ goto done;
+ }
+
+ /* --patch overrides --staged */
+ if (patch_mode)
+ only_staged = 0;
+
+ if (only_staged && include_untracked) {
+ fprintf_ln(stderr, _("Can't use --staged and --include-untracked"
+ " or --all at the same time"));
+ ret = -1;
+ goto done;
+ }
+
+ repo_read_index_preload(the_repository, NULL, 0);
+ if (!include_untracked && ps->nr) {
+ int i;
+ char *ps_matched = xcalloc(ps->nr, 1);
+
+ /* TODO: audit for interaction with sparse-index. */
+ ensure_full_index(&the_index);
+ for (i = 0; i < the_index.cache_nr; i++)
+ ce_path_match(&the_index, the_index.cache[i], ps,
+ ps_matched);
+
+ if (report_path_error(ps_matched, ps)) {
+ fprintf_ln(stderr, _("Did you forget to 'git add'?"));
+ ret = -1;
+ free(ps_matched);
+ goto done;
+ }
+ free(ps_matched);
+ }
+
+ if (repo_refresh_and_write_index(the_repository, REFRESH_QUIET, 0, 0,
+ NULL, NULL, NULL)) {
+ ret = -1;
+ goto done;
+ }
+
+ if (!check_changes(ps, include_untracked, &untracked_files)) {
+ if (!quiet)
+ printf_ln(_("No local changes to save"));
+ goto done;
+ }
+
+ if (!reflog_exists(ref_stash) && do_clear_stash()) {
+ ret = -1;
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot initialize stash"));
+ goto done;
+ }
+
+ if (stash_msg)
+ strbuf_addstr(&stash_msg_buf, stash_msg);
+ if (do_create_stash(ps, &stash_msg_buf, include_untracked, patch_mode, only_staged,
+ &info, &patch, quiet)) {
+ ret = -1;
+ goto done;
+ }
+
+ if (do_store_stash(&info.w_commit, stash_msg_buf.buf, 1)) {
+ ret = -1;
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot save the current status"));
+ goto done;
+ }
+
+ if (!quiet)
+ printf_ln(_("Saved working directory and index state %s"),
+ stash_msg_buf.buf);
+
+ if (!(patch_mode || only_staged)) {
+ if (include_untracked && !ps->nr) {
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ cp.git_cmd = 1;
+ if (startup_info->original_cwd) {
+ cp.dir = startup_info->original_cwd;
+ strvec_pushf(&cp.env, "%s=%s",
+ GIT_WORK_TREE_ENVIRONMENT,
+ the_repository->worktree);
+ }
+ strvec_pushl(&cp.args, "clean", "--force",
+ "--quiet", "-d", ":/", NULL);
+ if (include_untracked == INCLUDE_ALL_FILES)
+ strvec_push(&cp.args, "-x");
+ if (run_command(&cp)) {
+ ret = -1;
+ goto done;
+ }
+ }
+ discard_index(&the_index);
+ if (ps->nr) {
+ struct child_process cp_add = CHILD_PROCESS_INIT;
+ struct child_process cp_diff = CHILD_PROCESS_INIT;
+ struct child_process cp_apply = CHILD_PROCESS_INIT;
+ struct strbuf out = STRBUF_INIT;
+
+ cp_add.git_cmd = 1;
+ strvec_push(&cp_add.args, "add");
+ if (!include_untracked)
+ strvec_push(&cp_add.args, "-u");
+ if (include_untracked == INCLUDE_ALL_FILES)
+ strvec_push(&cp_add.args, "--force");
+ strvec_push(&cp_add.args, "--");
+ add_pathspecs(&cp_add.args, ps);
+ if (run_command(&cp_add)) {
+ ret = -1;
+ goto done;
+ }
+
+ cp_diff.git_cmd = 1;
+ strvec_pushl(&cp_diff.args, "diff-index", "-p",
+ "--cached", "--binary", "HEAD", "--",
+ NULL);
+ add_pathspecs(&cp_diff.args, ps);
+ if (pipe_command(&cp_diff, NULL, 0, &out, 0, NULL, 0)) {
+ ret = -1;
+ goto done;
+ }
+
+ cp_apply.git_cmd = 1;
+ strvec_pushl(&cp_apply.args, "apply", "--index",
+ "-R", NULL);
+ if (pipe_command(&cp_apply, out.buf, out.len, NULL, 0,
+ NULL, 0)) {
+ ret = -1;
+ goto done;
+ }
+ } else {
+ struct child_process cp = CHILD_PROCESS_INIT;
+ cp.git_cmd = 1;
+ /* BUG: this nukes untracked files in the way */
+ strvec_pushl(&cp.args, "reset", "--hard", "-q",
+ "--no-recurse-submodules", NULL);
+ if (run_command(&cp)) {
+ ret = -1;
+ goto done;
+ }
+ }
+
+ if (keep_index == 1 && !is_null_oid(&info.i_tree)) {
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ cp.git_cmd = 1;
+ strvec_pushl(&cp.args, "checkout", "--no-overlay",
+ oid_to_hex(&info.i_tree), "--", NULL);
+ if (!ps->nr)
+ strvec_push(&cp.args, ":/");
+ else
+ add_pathspecs(&cp.args, ps);
+ if (run_command(&cp)) {
+ ret = -1;
+ goto done;
+ }
+ }
+ goto done;
+ } else {
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ cp.git_cmd = 1;
+ strvec_pushl(&cp.args, "apply", "-R", NULL);
+
+ if (pipe_command(&cp, patch.buf, patch.len, NULL, 0, NULL, 0)) {
+ if (!quiet)
+ fprintf_ln(stderr, _("Cannot remove "
+ "worktree changes"));
+ ret = -1;
+ goto done;
+ }
+
+ if (keep_index < 1) {
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ cp.git_cmd = 1;
+ strvec_pushl(&cp.args, "reset", "-q", "--refresh", "--",
+ NULL);
+ add_pathspecs(&cp.args, ps);
+ if (run_command(&cp)) {
+ ret = -1;
+ goto done;
+ }
+ }
+ goto done;
+ }
+
+done:
+ strbuf_release(&patch);
+ free_stash_info(&info);
+ strbuf_release(&stash_msg_buf);
+ strbuf_release(&untracked_files);
+ return ret;
+}
+
+static int push_stash(int argc, const char **argv, const char *prefix,
+ int push_assumed)
+{
+ int force_assume = 0;
+ int keep_index = -1;
+ int only_staged = 0;
+ int patch_mode = 0;
+ int include_untracked = 0;
+ int quiet = 0;
+ int pathspec_file_nul = 0;
+ const char *stash_msg = NULL;
+ const char *pathspec_from_file = NULL;
+ struct pathspec ps;
+ struct option options[] = {
+ OPT_BOOL('k', "keep-index", &keep_index,
+ N_("keep index")),
+ OPT_BOOL('S', "staged", &only_staged,
+ N_("stash staged changes only")),
+ OPT_BOOL('p', "patch", &patch_mode,
+ N_("stash in patch mode")),
+ OPT__QUIET(&quiet, N_("quiet mode")),
+ OPT_BOOL('u', "include-untracked", &include_untracked,
+ N_("include untracked files in stash")),
+ OPT_SET_INT('a', "all", &include_untracked,
+ N_("include ignore files"), 2),
+ OPT_STRING('m', "message", &stash_msg, N_("message"),
+ N_("stash message")),
+ OPT_PATHSPEC_FROM_FILE(&pathspec_from_file),
+ OPT_PATHSPEC_FILE_NUL(&pathspec_file_nul),
+ OPT_END()
+ };
+ int ret;
+
+ if (argc) {
+ force_assume = !strcmp(argv[0], "-p");
+ argc = parse_options(argc, argv, prefix, options,
+ push_assumed ? git_stash_usage :
+ git_stash_push_usage,
+ PARSE_OPT_KEEP_DASHDASH);
+ }
+
+ if (argc) {
+ if (!strcmp(argv[0], "--")) {
+ argc--;
+ argv++;
+ } else if (push_assumed && !force_assume) {
+ die("subcommand wasn't specified; 'push' can't be assumed due to unexpected token '%s'",
+ argv[0]);
+ }
+ }
+
+ parse_pathspec(&ps, 0, PATHSPEC_PREFER_FULL | PATHSPEC_PREFIX_ORIGIN,
+ prefix, argv);
+
+ if (pathspec_from_file) {
+ if (patch_mode)
+ die(_("options '%s' and '%s' cannot be used together"), "--pathspec-from-file", "--patch");
+
+ if (only_staged)
+ die(_("options '%s' and '%s' cannot be used together"), "--pathspec-from-file", "--staged");
+
+ if (ps.nr)
+ die(_("'%s' and pathspec arguments cannot be used together"), "--pathspec-from-file");
+
+ parse_pathspec_file(&ps, 0,
+ PATHSPEC_PREFER_FULL | PATHSPEC_PREFIX_ORIGIN,
+ prefix, pathspec_from_file, pathspec_file_nul);
+ } else if (pathspec_file_nul) {
+ die(_("the option '%s' requires '%s'"), "--pathspec-file-nul", "--pathspec-from-file");
+ }
+
+ ret = do_push_stash(&ps, stash_msg, quiet, keep_index, patch_mode,
+ include_untracked, only_staged);
+ clear_pathspec(&ps);
+ return ret;
+}
+
+static int push_stash_unassumed(int argc, const char **argv, const char *prefix)
+{
+ return push_stash(argc, argv, prefix, 0);
+}
+
+static int save_stash(int argc, const char **argv, const char *prefix)
+{
+ int keep_index = -1;
+ int only_staged = 0;
+ int patch_mode = 0;
+ int include_untracked = 0;
+ int quiet = 0;
+ int ret = 0;
+ const char *stash_msg = NULL;
+ struct pathspec ps;
+ struct strbuf stash_msg_buf = STRBUF_INIT;
+ struct option options[] = {
+ OPT_BOOL('k', "keep-index", &keep_index,
+ N_("keep index")),
+ OPT_BOOL('S', "staged", &only_staged,
+ N_("stash staged changes only")),
+ OPT_BOOL('p', "patch", &patch_mode,
+ N_("stash in patch mode")),
+ OPT__QUIET(&quiet, N_("quiet mode")),
+ OPT_BOOL('u', "include-untracked", &include_untracked,
+ N_("include untracked files in stash")),
+ OPT_SET_INT('a', "all", &include_untracked,
+ N_("include ignore files"), 2),
+ OPT_STRING('m', "message", &stash_msg, "message",
+ N_("stash message")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_save_usage,
+ PARSE_OPT_KEEP_DASHDASH);
+
+ if (argc)
+ stash_msg = strbuf_join_argv(&stash_msg_buf, argc, argv, ' ');
+
+ memset(&ps, 0, sizeof(ps));
+ ret = do_push_stash(&ps, stash_msg, quiet, keep_index,
+ patch_mode, include_untracked, only_staged);
+
+ strbuf_release(&stash_msg_buf);
+ return ret;
+}
+
+int cmd_stash(int argc, const char **argv, const char *prefix)
+{
+ pid_t pid = getpid();
+ const char *index_file;
+ struct strvec args = STRVEC_INIT;
+ parse_opt_subcommand_fn *fn = NULL;
+ struct option options[] = {
+ OPT_SUBCOMMAND("apply", &fn, apply_stash),
+ OPT_SUBCOMMAND("clear", &fn, clear_stash),
+ OPT_SUBCOMMAND("drop", &fn, drop_stash),
+ OPT_SUBCOMMAND("pop", &fn, pop_stash),
+ OPT_SUBCOMMAND("branch", &fn, branch_stash),
+ OPT_SUBCOMMAND("list", &fn, list_stash),
+ OPT_SUBCOMMAND("show", &fn, show_stash),
+ OPT_SUBCOMMAND("store", &fn, store_stash),
+ OPT_SUBCOMMAND("create", &fn, create_stash),
+ OPT_SUBCOMMAND("push", &fn, push_stash_unassumed),
+ OPT_SUBCOMMAND_F("save", &fn, save_stash, PARSE_OPT_NOCOMPLETE),
+ OPT_END()
+ };
+
+ git_config(git_stash_config, NULL);
+
+ argc = parse_options(argc, argv, prefix, options, git_stash_usage,
+ PARSE_OPT_SUBCOMMAND_OPTIONAL |
+ PARSE_OPT_KEEP_UNKNOWN_OPT |
+ PARSE_OPT_KEEP_DASHDASH);
+
+ prepare_repo_settings(the_repository);
+ the_repository->settings.command_requires_full_index = 0;
+
+ index_file = get_index_file();
+ strbuf_addf(&stash_index_path, "%s.stash.%" PRIuMAX, index_file,
+ (uintmax_t)pid);
+
+ if (fn)
+ return !!fn(argc, argv, prefix);
+ else if (!argc)
+ return !!push_stash_unassumed(0, NULL, prefix);
+
+ /* Assume 'stash push' */
+ strvec_push(&args, "push");
+ strvec_pushv(&args, argv);
+ return !!push_stash(args.nr, args.v, prefix, 1);
+}