Implement all git stash functionality as a builtin command
Signed-off-by: Joel Teichroeb <joel@xxxxxxxxxxxxx>
---
Makefile | 2 +-
builtin.h | 1 +
builtin/stash.c | 1224 +++++++++++++++++++++++++
git-stash.sh => contrib/examples/git-stash.sh | 0
git.c | 1 +
5 files changed, 1227 insertions(+), 1 deletion(-)
create mode 100644 builtin/stash.c
rename git-stash.sh => contrib/examples/git-stash.sh (100%)
diff --git a/Makefile b/Makefile
index 7c621f7f76..3364d87630 100644
--- a/Makefile
+++ b/Makefile
@@ -525,7 +525,6 @@ SCRIPT_SH += git-quiltimport.sh
SCRIPT_SH += git-rebase.sh
SCRIPT_SH += git-remote-testgit.sh
SCRIPT_SH += git-request-pull.sh
-SCRIPT_SH += git-stash.sh
SCRIPT_SH += git-submodule.sh
SCRIPT_SH += git-web--browse.sh
@@ -965,6 +964,7 @@ BUILTIN_OBJS += builtin/send-pack.o
BUILTIN_OBJS += builtin/shortlog.o
BUILTIN_OBJS += builtin/show-branch.o
BUILTIN_OBJS += builtin/show-ref.o
+BUILTIN_OBJS += builtin/stash.o
BUILTIN_OBJS += builtin/stripspace.o
BUILTIN_OBJS += builtin/submodule--helper.o
BUILTIN_OBJS += builtin/symbolic-ref.o
diff --git a/builtin.h b/builtin.h
index 498ac80d07..fa59481420 100644
--- a/builtin.h
+++ b/builtin.h
@@ -119,6 +119,7 @@ extern int cmd_shortlog(int argc, const char **argv, const char *prefix);
extern int cmd_show(int argc, const char **argv, const char *prefix);
extern int cmd_show_branch(int argc, const char **argv, const char *prefix);
extern int cmd_status(int argc, const char **argv, const char *prefix);
+extern int cmd_stash(int argc, const char **argv, const char *prefix);
extern int cmd_stripspace(int argc, const char **argv, const char *prefix);
extern int cmd_submodule__helper(int argc, const char **argv, const char *prefix);
extern int cmd_symbolic_ref(int argc, const char **argv, const char *prefix);
diff --git a/builtin/stash.c b/builtin/stash.c
new file mode 100644
index 0000000000..a9680f2909
--- /dev/null
+++ b/builtin/stash.c
@@ -0,0 +1,1224 @@
+#include "builtin.h"
+#include "parse-options.h"
+#include "refs.h"
+#include "tree.h"
+#include "lockfile.h"
+#include "object.h"
+#include "tree-walk.h"
+#include "cache-tree.h"
+#include "unpack-trees.h"
+#include "diff.h"
+#include "revision.h"
+#include "commit.h"
+#include "diffcore.h"
+#include "merge-recursive.h"
+#include "argv-array.h"
+#include "run-command.h"
+
+static const char * const git_stash_usage[] = {
+ N_("git stash list [<options>]"),
+ N_("git stash show [<stash>]"),
+ N_("git stash drop [-q|--quiet] [<stash>]"),
+ N_("git stash ( pop | apply ) [--index] [-q|--quiet] [<stash>]"),
+ N_("git stash branch <branchname> [<stash>]"),
+ N_("git stash [save [--patch] [-k|--[no-]keep-index] [-q|--quiet]"),
+ N_(" [-u|--include-untracked] [-a|--all] [<message>]]"),
+ N_("git stash clear"),
+ N_("git stash create [<message>]"),
+ N_("git stash store [-m|--message <message>] [-q|--quiet] <commit>"),
+ NULL
+};
+
+static const char * const git_stash_list_usage[] = {
+ N_("git stash list [<options>]"),
+ NULL
+};
+
+static const char * const git_stash_show_usage[] = {
+ N_("git stash show [<stash>]"),
+ NULL
+};
+
+static const char * const git_stash_drop_usage[] = {
+ N_("git stash drop [-q|--quiet] [<stash>]"),
+ NULL
+};
+
+static const char * const git_stash_pop_usage[] = {
+ N_("git stash pop [--index] [-q|--quiet] [<stash>]"),
+ NULL
+};
+
+static const char * const git_stash_apply_usage[] = {
+ N_("git stash apply [--index] [-q|--quiet] [<stash>]"),
+ NULL
+};
+
+static const char * const git_stash_branch_usage[] = {
+ N_("git stash branch <branchname> [<stash>]"),
+ NULL
+};
+
+static const char * const git_stash_save_usage[] = {
+ N_("git stash [save [--patch] [-k|--[no-]keep-index] [-q|--quiet]"),
+ N_(" [-u|--include-untracked] [-a|--all] [<message>]]"),
+ NULL
+};
+
+static const char * const git_stash_clear_usage[] = {
+ N_("git stash clear"),
+ NULL
+};
+
+static const char * const git_stash_create_usage[] = {
+ N_("git stash create [<message>]"),
+ NULL
+};
+
+static const char * const git_stash_store_usage[] = {
+ N_("git stash store [-m|--message <message>] [-q|--quiet] <commit>"),
+ NULL
+};
+
+static const char *ref_stash = "refs/stash";
+static int quiet = 0;
+static struct lock_file lock_file;
+static char stash_index_path[64];
+
+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;
+ const char *message;
+ const char *revision;
+ int is_stash_ref;
+ int has_u;
+ const char *patch;
+};
+
+static int untracked_files(struct strbuf *out, int include_untracked,
+ int include_ignored, const char **argv)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "ls-files", "-o", "-z", NULL);
+ if (include_untracked && !include_ignored)
+ argv_array_push(&cp.args, "--exclude-standard");
+ argv_array_push(&cp.args, "--");
+ if (argv)
+ argv_array_pushv(&cp.args, argv);
+ return pipe_command(&cp, NULL, 0, out, 0, NULL, 0);
+}
+
+static int check_no_changes(const char *prefix, int include_untracked,
+ int include_ignored, const char **argv)
+{
+ struct argv_array args1 = ARGV_ARRAY_INIT;
+ struct argv_array args2 = ARGV_ARRAY_INIT;
+ struct strbuf out = STRBUF_INIT;
+ int ret;
+
+ argv_array_pushl(&args1, "diff-index", "--quiet", "--cached", "HEAD",
+ "--ignore-submodules", "--", NULL);
+ if (argv)
+ argv_array_pushv(&args1, argv);
+
+ argv_array_pushl(&args2, "diff-files", "--quiet", "--ignore-submodules",
+ "--", NULL);
+ if (argv)
+ argv_array_pushv(&args2, argv);
+
+ if (include_untracked)
+ untracked_files(&out, include_untracked, include_ignored, argv);
+
+ ret = cmd_diff_index(args1.argc, args1.argv, prefix) == 0 &&
+ cmd_diff_files(args2.argc, args2.argv, prefix) == 0 &&
+ (!include_untracked || out.len == 0);
+ strbuf_release(&out);
+ return ret;
+}
+
+static int get_stash_info(struct stash_info *info, const char *commit)
+{
+ struct strbuf w_commit_rev = STRBUF_INIT;
+ struct strbuf b_commit_rev = STRBUF_INIT;
+ struct strbuf w_tree_rev = STRBUF_INIT;
+ struct strbuf b_tree_rev = STRBUF_INIT;
+ struct strbuf i_tree_rev = STRBUF_INIT;
+ struct strbuf u_tree_rev = STRBUF_INIT;
+ struct strbuf commit_buf = STRBUF_INIT;
+ struct strbuf symbolic = STRBUF_INIT;
+ struct strbuf out = STRBUF_INIT;
+ int ret;
+ const char *revision = commit;
+ char *end_of_rev;
+ struct child_process cp = CHILD_PROCESS_INIT;
+ info->is_stash_ref = 0;
+
+ if (commit == NULL) {
+ strbuf_addf(&commit_buf, "%s@{0}", ref_stash);
+ revision = commit_buf.buf;
+ } else if (strlen(commit) < 3) {
+ strbuf_addf(&commit_buf, "%s@{%s}", ref_stash, commit);
+ revision = commit_buf.buf;
+ }
+ info->revision = revision;
+
+ strbuf_addf(&w_commit_rev, "%s", revision);
+ strbuf_addf(&b_commit_rev, "%s^1", revision);
+ strbuf_addf(&w_tree_rev, "%s:", revision);
+ strbuf_addf(&b_tree_rev, "%s^1:", revision);
+ strbuf_addf(&i_tree_rev, "%s^2:", revision);
+ strbuf_addf(&u_tree_rev, "%s^3:", revision);
+
+ ret = (get_sha1(w_commit_rev.buf, info->w_commit.hash) == 0 &&
+ get_sha1(b_commit_rev.buf, info->b_commit.hash) == 0 &&
+ get_sha1(w_tree_rev.buf, info->w_tree.hash) == 0 &&
+ get_sha1(b_tree_rev.buf, info->b_tree.hash) == 0 &&
+ get_sha1(i_tree_rev.buf, info->i_tree.hash) == 0);
+
+ strbuf_release(&w_commit_rev);
+ strbuf_release(&b_commit_rev);
+ strbuf_release(&w_tree_rev);
+ strbuf_release(&b_tree_rev);
+ strbuf_release(&i_tree_rev);
+
+ if (!ret)
+ return error(_("%s is not a valid reference"), revision);
+
+ info->has_u = get_sha1(u_tree_rev.buf, info->u_tree.hash) == 0;
+
+ strbuf_release(&u_tree_rev);
+
+ end_of_rev = strchrnul(revision, '@');
+ strbuf_add(&symbolic, revision, end_of_rev - revision);
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "rev-parse", "--symbolic-full-name", NULL);
+ argv_array_pushf(&cp.args, "%s", symbolic.buf);
+ strbuf_release(&symbolic);
+ pipe_command(&cp, NULL, 0, &out, 0, NULL, 0);
+
+ if (out.len-1 == strlen(ref_stash))
+ info->is_stash_ref = strncmp(out.buf, ref_stash, out.len-1) == 0;
+ strbuf_release(&out);
+
+ return !ret;
+}
+
+static void stash_create_callback(struct diff_queue_struct *q,
+ struct diff_options *opt, void *cbdata)
+{
+ int i;
+
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ const char *path = p->one->path;
+ struct stat st;
+ remove_file_from_index(&the_index, path);
+ if (!lstat(path, &st))
+ add_to_index(&the_index, path, &st, 0);
+ }
+}
+
+/*
+ * Untracked files are stored by themselves in a parentless commit, for
+ * ease of unpacking later.
+ */
+static int save_untracked(struct stash_info *info, const char *message,
+ int include_untracked, int include_ignored, const char **argv)
+{
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf out = STRBUF_INIT;
+ struct object_id orig_tree;
+ int ret;
+ const char *index_file = get_index_file();
+
+ set_alternate_index_output(stash_index_path);
+ untracked_files(&out, include_untracked, include_ignored, argv);
+
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "update-index", "-z", "--add", "--remove",
+ "--stdin", NULL);
+ argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", stash_index_path);
+
+ if (pipe_command(&cp, out.buf, out.len, NULL, 0, NULL, 0)) {
+ strbuf_release(&out);
+ return 1;
+ }
+
+ strbuf_reset(&out);
+
+ discard_cache();
+ read_cache_from(stash_index_path);
+
+ write_index_as_tree(orig_tree.hash, &the_index, stash_index_path, 0,NULL);
+ discard_cache();
+
+ read_cache_from(stash_index_path);
+
+ write_cache_as_tree(info->u_tree.hash, 0, NULL);
+ strbuf_addf(&out, "untracked files on %s", message);
+
+ ret = commit_tree(out.buf, out.len, info->u_tree.hash, NULL,
+ info->u_commit.hash, NULL, NULL);
+ strbuf_release(&out);
+ if (ret)
+ return 1;
+
+ set_alternate_index_output(index_file);
+ discard_cache();
+ read_cache();
+
+ return 0;
+}
+
+static int save_working_tree(struct stash_info *info, const char *prefix,
+ const char **argv)
+{
+ struct object_id orig_tree;
+ struct rev_info rev;
+ int nr_trees = 1;
+ struct tree_desc t[MAX_UNPACK_TREES];
+ struct tree *tree;
+ struct unpack_trees_options opts;
+ struct object *obj;
+
+ discard_cache();
+ tree = parse_tree_indirect(&info->i_tree);
+ prime_cache_tree(&the_index, tree);
+ write_index_as_tree(orig_tree.hash, &the_index, stash_index_path, 0, NULL);
+ discard_cache();
+
+ read_cache_from(stash_index_path);
+
+ memset(&opts, 0, sizeof(opts));
+
+ parse_tree(tree);
+
+ opts.head_idx = 1;
+ opts.src_index = &the_index;
+ opts.dst_index = &the_index;
+ opts.merge = 1;
+ opts.fn = oneway_merge;
+
+ init_tree_desc(t, tree->buffer, tree->size);
+
+ if (unpack_trees(nr_trees, t, &opts))
+ return 1;
+
+ init_revisions(&rev, prefix);
+ setup_revisions(0, NULL, &rev, NULL);
+ rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
+ rev.diffopt.format_callback = stash_create_callback;
+ DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS);
+
+ parse_pathspec(&rev.prune_data, 0, 0, prefix, argv);
+
+ diff_setup_done(&rev.diffopt);
+ obj = parse_object(&info->b_commit);
+ add_pending_object(&rev, obj, "");
+ if (run_diff_index(&rev, 0))
+ return 1;
+
+ if (write_cache_as_tree(info->w_tree.hash, 0, NULL))
+ return 1;
+
+ discard_cache();
+ read_cache();
+
+ return 0;
+}
+
+static int patch_working_tree(struct stash_info *info, const char *prefix,
+ const char **argv)
+{
+ struct argv_array args = ARGV_ARRAY_INIT;
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf out = STRBUF_INIT;
+ size_t unused;
+ const char *index_file = get_index_file();
+
+ argv_array_pushl(&args, "read-tree", "HEAD", NULL);
+ argv_array_pushf(&args, "--index-output=%s", stash_index_path);
+ cmd_read_tree(args.argc, args.argv, prefix);
+
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "add--interactive", "--patch=stash", "--", NULL);
+ argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", stash_index_path);
+ if (run_command(&cp))
+ return 1;
+
+ discard_cache();
+ read_cache_from(stash_index_path);
+
+ if (write_cache_as_tree(info->w_tree.hash, 0, NULL))
+ return 1;
+
+ child_process_init(&cp);
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "diff-tree", "-p", "HEAD", NULL);
+ argv_array_push(&cp.args, sha1_to_hex(info->w_tree.hash));
+ argv_array_push(&cp.args, "--");
+ if (pipe_command(&cp, NULL, 0, &out, 0, NULL, 0) || out.len == 0)
+ return 1;
+
+ info->patch = strbuf_detach(&out, &unused);
+
+ set_alternate_index_output(index_file);
+ discard_cache();
+ read_cache();
+
+ return 0;
+}
+
+static int do_create_stash(struct stash_info *info, const char *prefix,
+ const char *message, int include_untracked, int include_ignored,
+ int patch, const char **argv)
+{
+ struct object_id curr_head;
+ char *branch_path = NULL;
+ const char *branch_name = NULL;
+ struct commit_list *parents = NULL;
+ struct strbuf out_message = STRBUF_INIT;
+ struct strbuf out = STRBUF_INIT;
+ struct pretty_print_context ctx = {0};
+
+ struct commit *c = NULL;
+ const char *hash;
+
+ read_cache_preload(NULL);
+ refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
+ if (check_no_changes(prefix, include_untracked, include_ignored, argv))
+ return 1;
+
+ if (get_sha1_tree("HEAD", info->b_commit.hash))
+ return error(_("You do not have the initial commit yet"));
+
+ branch_path = resolve_refdup("HEAD", 0, curr_head.hash, NULL);
+
+ if (branch_path == NULL || strcmp(branch_path, "HEAD") == 0)
+ branch_name = "(no branch)";
+ else
+ skip_prefix(branch_path, "refs/heads/", &branch_name);
+
+ c = lookup_commit(&info->b_commit);
+
+ ctx.output_encoding = get_log_output_encoding();
+ ctx.abbrev = 1;
+ ctx.fmt = CMIT_FMT_ONELINE;
+ hash = find_unique_abbrev(c->object.oid.hash, DEFAULT_ABBREV);
+
+ strbuf_addf(&out_message, "%s: %s ", branch_name, hash);
+
+ pretty_print_commit(&ctx, c, &out_message);
+
+ strbuf_addf(&out, "index on %s\n", out_message.buf);
+
+ commit_list_insert(lookup_commit(&info->b_commit), &parents);
+
+ if (write_cache_as_tree(info->i_tree.hash, 0, NULL))
+ return error(_("git write-tree failed to write a tree"));
+
+ if (commit_tree(out.buf, out.len, info->i_tree.hash, parents, info->i_commit.hash, NULL, NULL))
+ return error(_("Cannot save the current index state"));
+
+ strbuf_reset(&out);
+
+ if (include_untracked) {
+ if (save_untracked(info, out_message.buf, include_untracked, include_ignored, argv))
+ return error(_("Cannot save the untracked files"));
+ }
+
+ if (patch) {
+ if (patch_working_tree(info, prefix, argv))
+ return error(_("Cannot save the current worktree state"));
+ } else {
+ if (save_working_tree(info, prefix, argv))
+ return error(_("Cannot save the current worktree state"));
+ }
+ parents = NULL;
+
+ if (include_untracked)
+ commit_list_insert(lookup_commit(&info->u_commit), &parents);
+
+ commit_list_insert(lookup_commit(&info->i_commit), &parents);
+ commit_list_insert(lookup_commit(&info->b_commit), &parents);
+
+ if (message != NULL && strlen(message) != 0)
+ strbuf_addf(&out, "On %s: %s\n", branch_name, message);
+ else
+ strbuf_addf(&out, "WIP on %s\n", out_message.buf);
+
+ if (commit_tree(out.buf, out.len, info->w_tree.hash, parents, info->w_commit.hash, NULL, NULL))
+ return error(_("Cannot record working tree state"));
+
+ info->message = out.buf;
+
+ strbuf_release(&out_message);
+ free(branch_path);
+
+ return 0;
+}
+
+static int create_stash(int argc, const char **argv, const char *prefix)
+{
+ int include_untracked = 0;
+ const char *message = NULL;
+ struct stash_info info;
+ int ret;
+ struct strbuf out = STRBUF_INIT;
+ struct option options[] = {
+ OPT_BOOL('u', "include-untracked", &include_untracked,
+ N_("stash untracked filed")),
+ OPT_STRING('m', "message", &message, N_("message"),
+ N_("stash commit message")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_create_usage, 0);
+
+ if (argc != 0) {
+ int i;
+ for (i = 0; i < argc; ++i) {
+ if (i != 0) {
+ strbuf_addf(&out, " ");
+ }
+ strbuf_addf(&out, "%s", argv[i]);
+ }
+ message = out.buf;
+ }
+
+ ret = do_create_stash(&info, prefix, message, include_untracked, 0, 0, NULL);
+
+ strbuf_release(&out);
+
+ if (ret)
+ return 0;
+
+ printf("%s\n", sha1_to_hex(info.w_commit.hash));
+ return 0;
+}
+
+static int do_store_stash(const char *prefix, int quiet, const char *message,
+ struct object_id commit)
+{
+ int ret;
+ ret = update_ref(message, ref_stash, commit.hash, NULL,
+ REF_FORCE_CREATE_REFLOG, UPDATE_REFS_DIE_ON_ERR);
+
+ if (ret && !quiet)
+ return error(_("Cannot update %s with %s"), ref_stash, sha1_to_hex(commit.hash));
+
+ return ret;
+}
+
+static int store_stash(int argc, const char **argv, const char *prefix)
+{
+ const char *message = "Create via \"git stash store\".";
+ const char *commit = NULL;
+ struct object_id obj;
+ struct option options[] = {
+ OPT_STRING('m', "message", &message, N_("message"),
+ N_("stash commit message")),
+ OPT__QUIET(&quiet, N_("be quiet, only report errors")),
+ OPT_END()
+ };
+ argc = parse_options(argc, argv, prefix, options, git_stash_store_usage, 0);
+
+ if (argc != 1)
+ return error(_("\"git stash store\" requires one <commit> argument"));
+
+ commit = argv[0];
+
+ if (get_sha1(commit, obj.hash)) {
+ fprintf_ln(stderr, _("fatal: %s: not a valid SHA1"), commit);
+ fprintf_ln(stderr, _("cannot update %s with %s"), ref_stash, commit);
+ return 1;
+ }
+
+ return do_store_stash(prefix, quiet, message, obj);
+}
+
+static int do_clear_stash(void)
+{
+ struct object_id obj;
+ if (get_sha1(ref_stash, obj.hash))
+ return 0;
+
+ return delete_ref(NULL, ref_stash, obj.hash, 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 != 0)
+ return error(_("git stash clear with parameters is unimplemented"));
+
+ return do_clear_stash();
+}
+
+static int reset_tree(struct object_id i_tree, int update, int reset)
+{
+ struct unpack_trees_options opts;
+ int nr_trees = 1;
+ struct tree_desc t[MAX_UNPACK_TREES];
+ struct tree *tree;
+
+ read_cache_preload(NULL);
+ if (refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL))
+ return 1;
+
+ hold_locked_index(&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;
+ opts.update = update;
+ opts.fn = oneway_merge;
+
+ if (unpack_trees(nr_trees, t, &opts))
+ return 1;
+
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) {
+ error(_("unable to write new index file"));
+ return 1;
+ }
+
+ return 0;
+}
+
+static int do_push_stash(const char *prefix, const char *message,
+ int keep_index, int include_untracked, int include_ignored, int patch,
+ const char **argv)
+{
+ int res;
+ struct stash_info info;
+
+ if (patch && include_untracked)
+ return error(_("can't use --patch and --include-untracked or --all at the same time"));
+
+ if (!include_untracked) {
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ cp.git_cmd = 1;
+ cp.no_stdout = 1;
+ argv_array_pushl(&cp.args, "ls-files", "--error-unmatch", "--", NULL);
+ if (argv)
+ argv_array_pushv(&cp.args, argv);
+ res = run_command(&cp);
+ if (res)
+ return 1;
+ }
+
+ read_cache_preload(NULL);
+ refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
+ if (check_no_changes(prefix, include_untracked, include_ignored, argv)) {
+ printf_ln(_("No local changes to save"));
+ return 0;
+ }
+
+ if (!reflog_exists(ref_stash)) {
+ if (do_clear_stash())
+ return error(_("Cannot initialize stash"));
+ }
+
+ if (do_create_stash(&info, prefix, message, include_untracked, include_ignored, patch, argv))
+ return 1;
+ res = do_store_stash(prefix, 1, info.message, info.w_commit);
+
+ if (res == 0 && !quiet)
+ printf(_("Saved working directory and index state %s"), info.message);
+
+ if (!patch) {
+ if (argv && *argv) {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ struct argv_array args2 = ARGV_ARRAY_INIT;
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf out = STRBUF_INIT;
+ argv_array_pushl(&args, "reset", "--quiet", "--", NULL);
+ argv_array_pushv(&args, argv);
+ cmd_reset(args.argc, args.argv, prefix);
+
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "ls-files", "-z", "--modified", "--",
+ NULL);
+ argv_array_pushv(&cp.args, argv);
+ pipe_command(&cp, NULL, 0, &out, 0, NULL, 0);
+
+ child_process_init(&cp);
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "checkout-index", "-z", "--force",
+ "--stdin", NULL);
+ pipe_command(&cp, out.buf, out.len, NULL, 0, NULL, 0);
+ strbuf_release(&out);
+
+ argv_array_pushl(&args2, "clean", "--force", "-d", "--quiet", "--",
+ NULL);
+ argv_array_pushv(&args2, argv);
+ cmd_clean(args2.argc, args2.argv, prefix);
+ } else {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ argv_array_pushl(&args, "reset", "--hard", "--quiet", NULL);
+ cmd_reset(args.argc, args.argv, prefix);
+ }
+
+ if (include_untracked) {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ argv_array_pushl(&args, "clean", "--force", "--quiet", "-d", NULL);
+ if (include_ignored)
+ argv_array_push(&args, "-x");
+ argv_array_push(&args, "--");
+ if (argv)
+ argv_array_pushv(&args, argv);
+ cmd_clean(args.argc, args.argv, prefix);
+ }
+
+ if (keep_index) {
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf out = STRBUF_INIT;
+
+ reset_tree(info.i_tree, 0, 1);
+
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "ls-files", "-z", "--modified", "--",
+ NULL);
+ argv_array_pushv(&cp.args, argv);
+ if (pipe_command(&cp, NULL, 0, &out, 0, NULL, 0))
+ return 1;
+
+ child_process_init(&cp);
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "checkout-index", "-z", "--force",
+ "--stdin", NULL);
+ if (pipe_command(&cp, out.buf, out.len, NULL, 0, NULL, 0))
+ return 1;
+ strbuf_release(&out);
+ }
+ } else {
+ struct child_process cp = CHILD_PROCESS_INIT;
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "apply", "-R", NULL);
+ if (pipe_command(&cp, info.patch, strlen(info.patch), NULL, 0, NULL, 0))
+ return error(_("Cannot remove worktree changes"));
+
+ if (!keep_index) {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ argv_array_pushl(&args, "reset", "--quiet", "--", NULL);
+ if (argv)
+ argv_array_pushv(&args, argv);
+ cmd_reset(args.argc, args.argv, prefix);
+ }
+ }
+
+ return 0;
+}
+
+static int push_stash(int argc, const char **argv, const char *prefix)
+{
+ const char *message = NULL;
+ int include_untracked = 0;
+ int include_ignored = 0;
+ int patch = 0;
+ int keep_index_set = -1;
+ int keep_index = 0;
+ struct option options[] = {
+ OPT_BOOL('u', "include-untracked", &include_untracked,
+ N_("stash untracked filed")),
+ OPT_BOOL('a', "all", &include_ignored,
+ N_("stash ignored untracked files")),
+ OPT_BOOL('k', "keep-index", &keep_index_set,
+ N_("restore the index after applying the stash")),
+ OPT__QUIET(&quiet, N_("be quiet, only report errors")),
+ OPT_STRING('m', "message", &message, N_("message"),
+ N_("stash commit message")),
+ OPT_BOOL('p', "patch", &patch,
+ N_("edit current diff and apply")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_save_usage, PARSE_OPT_STOP_AT_NON_OPTION);
+
+ if (include_ignored)
+ include_untracked = 1;
+
+ if (keep_index_set != -1)
+ keep_index = keep_index_set;
+ else if (patch)
+ keep_index = 1;
+
+ return do_push_stash(prefix, message, keep_index, include_untracked, include_ignored, patch, argv);
+}
+
+static int save_stash(int argc, const char **argv, const char *prefix)
+{
+ const char *message = NULL;
+ int include_untracked = 0;
+ int include_ignored = 0;
+ int patch = 0;
+ int keep_index_set = -1;
+ int keep_index = 0;
+ int ret;
+ struct strbuf out = STRBUF_INIT;
+ struct option options[] = {
+ OPT_BOOL('u', "include-untracked", &include_untracked,
+ N_("stash untracked filed")),
+ OPT_BOOL('a', "all", &include_ignored,
+ N_("stash ignored untracked files")),
+ OPT_BOOL('k', "keep-index", &keep_index_set,
+ N_("restore the index after applying the stash")),
+ OPT__QUIET(&quiet, N_("be quiet, only report errors")),
+ OPT_STRING('m', "message", &message, N_("message"),
+ N_("stash commit message")),
+ OPT_BOOL('p', "patch", &patch,
+ N_("edit current diff and apply")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_save_usage, PARSE_OPT_STOP_AT_NON_OPTION);
+
+ if (include_ignored)
+ include_untracked = 1;
+
+ if (keep_index_set != -1)
+ keep_index = keep_index_set;
+ else if (patch)
+ keep_index = 1;
+
+ if (argc != 0) {
+ int i;
+ for (i = 0; i < argc; ++i) {
+ if (i != 0)
+ strbuf_addf(&out, " ");
+ strbuf_addf(&out, "%s", argv[i]);
+ }
+ message = out.buf;
+ }
+
+ ret = do_push_stash(prefix, message, keep_index, include_untracked,
+ include_ignored, patch, NULL);
+ strbuf_release(&out);
+ return ret;
+}
+
+static int do_apply_stash(const char *prefix, struct stash_info *info, int index)
+{
+ struct merge_options o;
+ struct object_id c_tree;
+ struct object_id index_tree;
+ const struct object_id *bases[1];
+ int bases_count = 1;
+ struct commit *result;
+ int ret;
+
+ read_cache_preload(NULL);
+ if (refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL))
+ return 1;
+
+ if (write_cache_as_tree(c_tree.hash, 0, NULL))
+ return 1;
+
+ if (index) {
+ if (hashcmp(info->b_tree.hash, info->i_tree.hash) == 0 || hashcmp(c_tree.hash, info->i_tree.hash) == 0) {
+ index = 0;
+ } else {
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf out = STRBUF_INIT;
+ struct argv_array args = ARGV_ARRAY_INIT;
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "diff-tree", "--binary", NULL);
+ argv_array_pushf(&cp.args, "%s^2^..%s^2", sha1_to_hex(info->w_commit.hash), sha1_to_hex(info->w_commit.hash));
+ if (pipe_command(&cp, NULL, 0, &out, 0, NULL, 0))
+ return 1;
+
+ child_process_init(&cp);
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "apply", "--cached", NULL);
+ if (pipe_command(&cp, out.buf, out.len, NULL, 0, NULL, 0))
+ return 1;
+
+ strbuf_release(&out);
+ discard_cache();
+ read_cache();
+ if (write_cache_as_tree(index_tree.hash, 0, NULL))
+ return 1;
+
+ argv_array_push(&args, "reset");
+ cmd_reset(args.argc, args.argv, prefix);
+ }
+ }
+
+ if (info->has_u) {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ struct child_process cp = CHILD_PROCESS_INIT;
+ const char *index_file = get_index_file();
+
+ argv_array_push(&args, "read-tree");
+ argv_array_push(&args, sha1_to_hex(info->u_tree.hash));
+ argv_array_pushf(&args, "--index-output=%s", stash_index_path);
+
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "checkout-index", "--all", NULL);
+ argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", stash_index_path);
+
+ if (cmd_read_tree(args.argc, args.argv, prefix) ||
+ run_command(&cp)) {
+ return error(_("Could not restore untracked files from stash"));
+ }
+ set_alternate_index_output(index_file);
+ }
+
+ init_merge_options(&o);
+
+ o.branch1 = "Updated upstream";
+ o.branch2 = "Stashed changes";
+
+ if (hashcmp(info->b_tree.hash, c_tree.hash) == 0)
+ 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);
+
+ bases[0] = &info->b_tree;
+
+ ret = merge_recursive_generic(&o, &c_tree, &info->w_tree, bases_count, bases, &result);
+ if (ret != 0) {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ argv_array_push(&args, "rerere");
+ cmd_rerere(args.argc, args.argv, prefix);
+
+ if (index)
+ printf_ln(_("Index was not unstashed."));
+
+ return ret;
+ }
+
+ if (index) {
+ ret = reset_tree(index_tree, 0, 0);
+ } else {
+ struct child_process cp = CHILD_PROCESS_INIT;
+ struct strbuf out = STRBUF_INIT;
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "diff-index", "--cached", "--name-only", "--diff-filter=A", NULL);
+ argv_array_push(&cp.args, sha1_to_hex(c_tree.hash));
+ ret = pipe_command(&cp, NULL, 0, &out, 0, NULL, 0);
+ if (ret)
+ return 1;
+
+ ret = reset_tree(c_tree, 0, 1);
+ if (ret)
+ return 1;
+
+ child_process_init(&cp);
+ cp.git_cmd = 1;
+ argv_array_pushl(&cp.args, "update-index", "--add", "--stdin", NULL);
+ ret = pipe_command(&cp, out.buf, out.len, NULL, 0, NULL, 0);
+ if (ret)
+ return 1;
+
+ strbuf_release(&out);
+ discard_cache();
+ read_cache();
+ }
+
+ if (!quiet) {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ argv_array_push(&args, "status");
+ cmd_status(args.argc, args.argv, prefix);
+ }
+
+ return 0;
+}
+
+static int apply_stash(int argc, const char **argv, const char *prefix)
+{
+ const char *commit = NULL;
+ int index = 0;
+ struct stash_info info;
+ struct option options[] = {
+ OPT__QUIET(&quiet, N_("be quiet, only report errors")),
+ OPT_BOOL(0, "index", &index,
+ N_("attempt to ininstate the index")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_apply_usage, 0);
+
+ if (argc == 1) {
+ commit = argv[0];
+ }
+
+ if (get_stash_info(&info, commit))
+ return 1;
+
+ return do_apply_stash(prefix, &info, index);
+}
+
+static int do_drop_stash(const char *prefix, struct stash_info *info)
+{
+ struct argv_array args = ARGV_ARRAY_INIT;
+ int ret;
+ struct child_process cp = CHILD_PROCESS_INIT;
+
+ argv_array_pushl(&args, "reflog", "delete", "--updateref", "--rewrite", NULL);
+ argv_array_push(&args, info->revision);
+ ret = cmd_reflog(args.argc, args.argv, prefix);
+ if (ret == 0) {
+ if (!quiet) {
+ printf(_("Dropped %s (%s)\n"), info->revision, sha1_to_hex(info->w_commit.hash));
+ }
+ } else {
+ return error(_("%s: Could not drop stash entry"), info->revision);
+ }
+
+ cp.git_cmd = 1;
+ /* Even though --quiet is specified, rev-parse still outputs the hash */
+ cp.no_stdout = 1;
+ argv_array_pushl(&cp.args, "rev-parse", "--verify", "--quiet", NULL);
+ argv_array_pushf(&cp.args, "%s@{0}", ref_stash);
+ ret = run_command(&cp);
+
+ if (ret)
+ do_clear_stash();
+
+ return 0;
+}
+
+static int drop_stash(int argc, const char **argv, const char *prefix)
+{
+ const char *commit = NULL;
+ struct stash_info info;
+ 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 (argc == 1)
+ commit = argv[0];
+
+ if (get_stash_info(&info, commit))
+ return 1;
+
+ if (!info.is_stash_ref)
+ return error(_("'%s' is not a stash reference"), commit);
+
+ return do_drop_stash(prefix, &info);
+}
+
+static int list_stash(int argc, const char **argv, const char *prefix)
+{
+ struct option options[] = {
+ OPT_END()
+ };
+
+ struct object_id obj;
+ struct argv_array args = ARGV_ARRAY_INIT;
+ int ret;
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_list_usage, PARSE_OPT_KEEP_UNKNOWN);
+
+ if (get_sha1(ref_stash, obj.hash))
+ return 0;
+
+ argv_array_pushl(&args, "log", "--format=%gd: %gs", "-g", "--first-parent", "-m", NULL);
+ argv_array_pushv(&args, argv);
+ argv_array_push(&args, ref_stash);
+ ret = cmd_log(args.argc, args.argv, prefix);
+ if (ret)
+ return 1;
+
+ return 0;
+}
+
+static int show_stash(int argc, const char **argv, const char *prefix)
+{
+ struct argv_array args = ARGV_ARRAY_INIT;
+ struct stash_info info;
+ const char *commit = NULL;
+ int numstat = 0;
+ int patch = 0;
+ int ret;
+
+ struct option options[] = {
+ OPT_BOOL(0, "numstat", &numstat,
+ N_("Shows number of added and deleted lines in decimal notation")),
+ OPT_BOOL('p', "patch", &patch,
+ N_("Generate patch")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_show_usage, 0);
+
+ if (argc == 1)
+ commit = argv[0];
+
+ if (get_stash_info(&info, commit))
+ return 1;
+
+ argv_array_push(&args, "diff");
+ if (numstat)
+ argv_array_push(&args, "--numstat");
+ else if (patch)
+ argv_array_push(&args, "-p");
+ else
+ argv_array_push(&args, "--stat");
+
+ argv_array_push(&args, sha1_to_hex(info.b_commit.hash));
+ argv_array_push(&args, sha1_to_hex(info.w_commit.hash));
+ ret = cmd_diff(args.argc, args.argv, prefix);
+ return ret;
+}
+
+static int pop_stash(int argc, const char **argv, const char *prefix)
+{
+ int index = 0;
+ const char *commit = NULL;
+ struct stash_info info;
+ struct option options[] = {
+ OPT__QUIET(&quiet, N_("be quiet, only report errors")),
+ OPT_BOOL(0, "index", &index,
+ N_("attempt to ininstate the index")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_pop_usage, 0);
+
+ if (argc == 1)
+ commit = argv[0];
+
+ if (get_stash_info(&info, commit))
+ return 1;
+
+ if (!info.is_stash_ref)
+ return error(_("'%s' is not a stash reference"), commit);
+
+ if (do_apply_stash(prefix, &info, index))
+ return 1;
+
+ return do_drop_stash(prefix, &info);
+}
+
+static int branch_stash(int argc, const char **argv, const char *prefix)
+{
+ const char *commit = NULL, *branch = NULL;
+ int ret;
+ struct argv_array args = ARGV_ARRAY_INIT;
+ struct stash_info info;
+ struct option options[] = {
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options,
+ git_stash_branch_usage, 0);
+
+ if (argc != 0) {
+ branch = argv[0];
+ if (argc == 2)
+ commit = argv[1];
+ }
+
+ if (get_stash_info(&info, commit))
+ return 1;
+
+ argv_array_pushl(&args, "checkout", "-b", NULL);
+ argv_array_push(&args, branch);
+ argv_array_push(&args, sha1_to_hex(info.b_commit.hash));
+ ret = cmd_checkout(args.argc, args.argv, prefix);
+ if (ret)
+ return 1;
+
+ ret = do_apply_stash(prefix, &info, 1);
+ if (ret == 0 && info.is_stash_ref)
+ ret = do_drop_stash(prefix, &info);
+
+ return ret;
+}
+
+int cmd_stash(int argc, const char **argv, const char *prefix)
+{
+ int result = 0;
+ pid_t pid = getpid();
+
+ struct option options[] = {
+ OPT_END()
+ };
+
+ git_config(git_default_config, NULL);
+
+ xsnprintf(stash_index_path, 64, ".git/index.stash.%d", pid);
+
+ argc = parse_options(argc, argv, prefix, options, git_stash_usage,
+ PARSE_OPT_KEEP_UNKNOWN|PARSE_OPT_KEEP_DASHDASH);
+
+ if (argc < 1) {
+ result = do_push_stash(NULL, prefix, 0, 0, 0, 0, NULL);
+ } else if (!strcmp(argv[0], "list"))
+ result = list_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "show"))
+ result = show_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "save"))
+ result = save_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "push"))
+ result = push_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "apply"))
+ result = apply_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "clear"))
+ result = clear_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "create"))
+ result = create_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "store"))
+ result = store_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "drop"))
+ result = drop_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "pop"))
+ result = pop_stash(argc, argv, prefix);
+ else if (!strcmp(argv[0], "branch"))
+ result = branch_stash(argc, argv, prefix);
+ else {
+ if (argv[0][0] == '-') {
+ struct argv_array args = ARGV_ARRAY_INIT;
+ argv_array_push(&args, "push");
+ argv_array_pushv(&args, argv);
+ result = push_stash(args.argc, args.argv, prefix);
+ if (!result)
+ printf_ln(_("To restore them type \"git stash apply\""));
+ } else {
+ error(_("unknown subcommand: %s"), argv[0]);
+ result = 1;
+ }
+ }
+
+ return result;
+}
diff --git a/git-stash.sh b/contrib/examples/git-stash.sh
similarity index 100%
rename from git-stash.sh
rename to contrib/examples/git-stash.sh
diff --git a/git.c b/git.c
index 8ff44f081d..4531011cdc 100644
--- a/git.c
+++ b/git.c
@@ -491,6 +491,7 @@ static struct cmd_struct commands[] = {
{ "show-branch", cmd_show_branch, RUN_SETUP },
{ "show-ref", cmd_show_ref, RUN_SETUP },
{ "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE },
+ { "stash", cmd_stash, RUN_SETUP | NEED_WORK_TREE },
{ "status", cmd_status, RUN_SETUP | NEED_WORK_TREE },
{ "stripspace", cmd_stripspace },
{ "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX},
--
2.13.0
