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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-22 16:42:18 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-02-22 22:29:41 (GMT)
commit81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch)
tree7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin/clone.c
parent241b9254e1c8ff071d8054f8b6fbe1883b389d69 (diff)
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Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more pleasant to use auto-completion on the thing. Instead of [torvalds@nehalem git]$ em buil<tab> Display all 180 possibilities? (y or n) [torvalds@nehalem git]$ em builtin-sh builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o [torvalds@nehalem git]$ em builtin-shor<tab> builtin-shortlog.c builtin-shortlog.o [torvalds@nehalem git]$ em builtin-shortlog.c you get [torvalds@nehalem git]$ em buil<tab> [type] builtin/ builtin.h [torvalds@nehalem git]$ em builtin [auto-completes to] [torvalds@nehalem git]$ em builtin/sh<tab> [type] shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o [torvalds@nehalem git]$ em builtin/sho [auto-completes to] [torvalds@nehalem git]$ em builtin/shor<tab> [type] shortlog.c shortlog.o [torvalds@nehalem git]$ em builtin/shortlog.c which doesn't seem all that different, but not having that annoying break in "Display all 180 possibilities?" is quite a relief. NOTE! If you do this in a clean tree (no object files etc), or using an editor that has auto-completion rules that ignores '*.o' files, you won't see that annoying 'Display all 180 possibilities?' message - it will just show the choices instead. I think bash has some cut-off around 100 choices or something. So the reason I see this is that I'm using an odd editory, and thus don't have the rules to cut down on auto-completion. But you can simulate that by using 'ls' instead, or something similar. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/clone.c')
-rw-r--r--builtin/clone.c671
1 files changed, 671 insertions, 0 deletions
diff --git a/builtin/clone.c b/builtin/clone.c
new file mode 100644
index 0000000..58bacbd
--- /dev/null
+++ b/builtin/clone.c
@@ -0,0 +1,671 @@
+/*
+ * Builtin "git clone"
+ *
+ * Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>,
+ * 2008 Daniel Barkalow <barkalow@iabervon.org>
+ * Based on git-commit.sh by Junio C Hamano and Linus Torvalds
+ *
+ * Clone a repository into a different directory that does not yet exist.
+ */
+
+#include "cache.h"
+#include "parse-options.h"
+#include "fetch-pack.h"
+#include "refs.h"
+#include "tree.h"
+#include "tree-walk.h"
+#include "unpack-trees.h"
+#include "transport.h"
+#include "strbuf.h"
+#include "dir.h"
+#include "pack-refs.h"
+#include "sigchain.h"
+#include "branch.h"
+#include "remote.h"
+#include "run-command.h"
+
+/*
+ * Overall FIXMEs:
+ * - respect DB_ENVIRONMENT for .git/objects.
+ *
+ * Implementation notes:
+ * - dropping use-separate-remote and no-separate-remote compatibility
+ *
+ */
+static const char * const builtin_clone_usage[] = {
+ "git clone [options] [--] <repo> [<dir>]",
+ NULL
+};
+
+static int option_quiet, option_no_checkout, option_bare, option_mirror;
+static int option_local, option_no_hardlinks, option_shared, option_recursive;
+static char *option_template, *option_reference, *option_depth;
+static char *option_origin = NULL;
+static char *option_branch = NULL;
+static char *option_upload_pack = "git-upload-pack";
+static int option_verbose;
+static int option_progress;
+
+static struct option builtin_clone_options[] = {
+ OPT__QUIET(&option_quiet),
+ OPT__VERBOSE(&option_verbose),
+ OPT_BOOLEAN(0, "progress", &option_progress,
+ "force progress reporting"),
+ OPT_BOOLEAN('n', "no-checkout", &option_no_checkout,
+ "don't create a checkout"),
+ OPT_BOOLEAN(0, "bare", &option_bare, "create a bare repository"),
+ { OPTION_BOOLEAN, 0, "naked", &option_bare, NULL,
+ "create a bare repository",
+ PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
+ OPT_BOOLEAN(0, "mirror", &option_mirror,
+ "create a mirror repository (implies bare)"),
+ OPT_BOOLEAN('l', "local", &option_local,
+ "to clone from a local repository"),
+ OPT_BOOLEAN(0, "no-hardlinks", &option_no_hardlinks,
+ "don't use local hardlinks, always copy"),
+ OPT_BOOLEAN('s', "shared", &option_shared,
+ "setup as shared repository"),
+ OPT_BOOLEAN(0, "recursive", &option_recursive,
+ "initialize submodules in the clone"),
+ OPT_STRING(0, "template", &option_template, "path",
+ "path the template repository"),
+ OPT_STRING(0, "reference", &option_reference, "repo",
+ "reference repository"),
+ OPT_STRING('o', "origin", &option_origin, "branch",
+ "use <branch> instead of 'origin' to track upstream"),
+ OPT_STRING('b', "branch", &option_branch, "branch",
+ "checkout <branch> instead of the remote's HEAD"),
+ OPT_STRING('u', "upload-pack", &option_upload_pack, "path",
+ "path to git-upload-pack on the remote"),
+ OPT_STRING(0, "depth", &option_depth, "depth",
+ "create a shallow clone of that depth"),
+
+ OPT_END()
+};
+
+static const char *argv_submodule[] = {
+ "submodule", "update", "--init", "--recursive", NULL
+};
+
+static char *get_repo_path(const char *repo, int *is_bundle)
+{
+ static char *suffix[] = { "/.git", ".git", "" };
+ static char *bundle_suffix[] = { ".bundle", "" };
+ struct stat st;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(suffix); i++) {
+ const char *path;
+ path = mkpath("%s%s", repo, suffix[i]);
+ if (is_directory(path)) {
+ *is_bundle = 0;
+ return xstrdup(make_nonrelative_path(path));
+ }
+ }
+
+ for (i = 0; i < ARRAY_SIZE(bundle_suffix); i++) {
+ const char *path;
+ path = mkpath("%s%s", repo, bundle_suffix[i]);
+ if (!stat(path, &st) && S_ISREG(st.st_mode)) {
+ *is_bundle = 1;
+ return xstrdup(make_nonrelative_path(path));
+ }
+ }
+
+ return NULL;
+}
+
+static char *guess_dir_name(const char *repo, int is_bundle, int is_bare)
+{
+ const char *end = repo + strlen(repo), *start;
+ char *dir;
+
+ /*
+ * Strip trailing spaces, slashes and /.git
+ */
+ while (repo < end && (is_dir_sep(end[-1]) || isspace(end[-1])))
+ end--;
+ if (end - repo > 5 && is_dir_sep(end[-5]) &&
+ !strncmp(end - 4, ".git", 4)) {
+ end -= 5;
+ while (repo < end && is_dir_sep(end[-1]))
+ end--;
+ }
+
+ /*
+ * Find last component, but be prepared that repo could have
+ * the form "remote.example.com:foo.git", i.e. no slash
+ * in the directory part.
+ */
+ start = end;
+ while (repo < start && !is_dir_sep(start[-1]) && start[-1] != ':')
+ start--;
+
+ /*
+ * Strip .{bundle,git}.
+ */
+ if (is_bundle) {
+ if (end - start > 7 && !strncmp(end - 7, ".bundle", 7))
+ end -= 7;
+ } else {
+ if (end - start > 4 && !strncmp(end - 4, ".git", 4))
+ end -= 4;
+ }
+
+ if (is_bare) {
+ struct strbuf result = STRBUF_INIT;
+ strbuf_addf(&result, "%.*s.git", (int)(end - start), start);
+ dir = strbuf_detach(&result, NULL);
+ } else
+ dir = xstrndup(start, end - start);
+ /*
+ * Replace sequences of 'control' characters and whitespace
+ * with one ascii space, remove leading and trailing spaces.
+ */
+ if (*dir) {
+ char *out = dir;
+ int prev_space = 1 /* strip leading whitespace */;
+ for (end = dir; *end; ++end) {
+ char ch = *end;
+ if ((unsigned char)ch < '\x20')
+ ch = '\x20';
+ if (isspace(ch)) {
+ if (prev_space)
+ continue;
+ prev_space = 1;
+ } else
+ prev_space = 0;
+ *out++ = ch;
+ }
+ *out = '\0';
+ if (out > dir && prev_space)
+ out[-1] = '\0';
+ }
+ return dir;
+}
+
+static void strip_trailing_slashes(char *dir)
+{
+ char *end = dir + strlen(dir);
+
+ while (dir < end - 1 && is_dir_sep(end[-1]))
+ end--;
+ *end = '\0';
+}
+
+static void setup_reference(const char *repo)
+{
+ const char *ref_git;
+ char *ref_git_copy;
+
+ struct remote *remote;
+ struct transport *transport;
+ const struct ref *extra;
+
+ ref_git = make_absolute_path(option_reference);
+
+ if (is_directory(mkpath("%s/.git/objects", ref_git)))
+ ref_git = mkpath("%s/.git", ref_git);
+ else if (!is_directory(mkpath("%s/objects", ref_git)))
+ die("reference repository '%s' is not a local directory.",
+ option_reference);
+
+ ref_git_copy = xstrdup(ref_git);
+
+ add_to_alternates_file(ref_git_copy);
+
+ remote = remote_get(ref_git_copy);
+ transport = transport_get(remote, ref_git_copy);
+ for (extra = transport_get_remote_refs(transport); extra;
+ extra = extra->next)
+ add_extra_ref(extra->name, extra->old_sha1, 0);
+
+ transport_disconnect(transport);
+
+ free(ref_git_copy);
+}
+
+static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest)
+{
+ struct dirent *de;
+ struct stat buf;
+ int src_len, dest_len;
+ DIR *dir;
+
+ dir = opendir(src->buf);
+ if (!dir)
+ die_errno("failed to open '%s'", src->buf);
+
+ if (mkdir(dest->buf, 0777)) {
+ if (errno != EEXIST)
+ die_errno("failed to create directory '%s'", dest->buf);
+ else if (stat(dest->buf, &buf))
+ die_errno("failed to stat '%s'", dest->buf);
+ else if (!S_ISDIR(buf.st_mode))
+ die("%s exists and is not a directory", dest->buf);
+ }
+
+ strbuf_addch(src, '/');
+ src_len = src->len;
+ strbuf_addch(dest, '/');
+ dest_len = dest->len;
+
+ while ((de = readdir(dir)) != NULL) {
+ strbuf_setlen(src, src_len);
+ strbuf_addstr(src, de->d_name);
+ strbuf_setlen(dest, dest_len);
+ strbuf_addstr(dest, de->d_name);
+ if (stat(src->buf, &buf)) {
+ warning ("failed to stat %s\n", src->buf);
+ continue;
+ }
+ if (S_ISDIR(buf.st_mode)) {
+ if (de->d_name[0] != '.')
+ copy_or_link_directory(src, dest);
+ continue;
+ }
+
+ if (unlink(dest->buf) && errno != ENOENT)
+ die_errno("failed to unlink '%s'", dest->buf);
+ if (!option_no_hardlinks) {
+ if (!link(src->buf, dest->buf))
+ continue;
+ if (option_local)
+ die_errno("failed to create link '%s'", dest->buf);
+ option_no_hardlinks = 1;
+ }
+ if (copy_file_with_time(dest->buf, src->buf, 0666))
+ die_errno("failed to copy file to '%s'", dest->buf);
+ }
+ closedir(dir);
+}
+
+static const struct ref *clone_local(const char *src_repo,
+ const char *dest_repo)
+{
+ const struct ref *ret;
+ struct strbuf src = STRBUF_INIT;
+ struct strbuf dest = STRBUF_INIT;
+ struct remote *remote;
+ struct transport *transport;
+
+ if (option_shared)
+ add_to_alternates_file(src_repo);
+ else {
+ strbuf_addf(&src, "%s/objects", src_repo);
+ strbuf_addf(&dest, "%s/objects", dest_repo);
+ copy_or_link_directory(&src, &dest);
+ strbuf_release(&src);
+ strbuf_release(&dest);
+ }
+
+ remote = remote_get(src_repo);
+ transport = transport_get(remote, src_repo);
+ ret = transport_get_remote_refs(transport);
+ transport_disconnect(transport);
+ return ret;
+}
+
+static const char *junk_work_tree;
+static const char *junk_git_dir;
+static pid_t junk_pid;
+
+static void remove_junk(void)
+{
+ struct strbuf sb = STRBUF_INIT;
+ if (getpid() != junk_pid)
+ return;
+ if (junk_git_dir) {
+ strbuf_addstr(&sb, junk_git_dir);
+ remove_dir_recursively(&sb, 0);
+ strbuf_reset(&sb);
+ }
+ if (junk_work_tree) {
+ strbuf_addstr(&sb, junk_work_tree);
+ remove_dir_recursively(&sb, 0);
+ strbuf_reset(&sb);
+ }
+}
+
+static void remove_junk_on_signal(int signo)
+{
+ remove_junk();
+ sigchain_pop(signo);
+ raise(signo);
+}
+
+static struct ref *wanted_peer_refs(const struct ref *refs,
+ struct refspec *refspec)
+{
+ struct ref *local_refs = NULL;
+ struct ref **tail = &local_refs;
+
+ get_fetch_map(refs, refspec, &tail, 0);
+ if (!option_mirror)
+ get_fetch_map(refs, tag_refspec, &tail, 0);
+
+ return local_refs;
+}
+
+static void write_remote_refs(const struct ref *local_refs)
+{
+ const struct ref *r;
+
+ for (r = local_refs; r; r = r->next)
+ add_extra_ref(r->peer_ref->name, r->old_sha1, 0);
+
+ pack_refs(PACK_REFS_ALL);
+ clear_extra_refs();
+}
+
+int cmd_clone(int argc, const char **argv, const char *prefix)
+{
+ int is_bundle = 0;
+ struct stat buf;
+ const char *repo_name, *repo, *work_tree, *git_dir;
+ char *path, *dir;
+ int dest_exists;
+ const struct ref *refs, *remote_head;
+ const struct ref *remote_head_points_at;
+ const struct ref *our_head_points_at;
+ struct ref *mapped_refs;
+ struct strbuf key = STRBUF_INIT, value = STRBUF_INIT;
+ struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT;
+ struct transport *transport = NULL;
+ char *src_ref_prefix = "refs/heads/";
+ int err = 0;
+
+ struct refspec *refspec;
+ const char *fetch_pattern;
+
+ junk_pid = getpid();
+
+ argc = parse_options(argc, argv, prefix, builtin_clone_options,
+ builtin_clone_usage, 0);
+
+ if (argc > 2)
+ usage_msg_opt("Too many arguments.",
+ builtin_clone_usage, builtin_clone_options);
+
+ if (argc == 0)
+ usage_msg_opt("You must specify a repository to clone.",
+ builtin_clone_usage, builtin_clone_options);
+
+ if (option_mirror)
+ option_bare = 1;
+
+ if (option_bare) {
+ if (option_origin)
+ die("--bare and --origin %s options are incompatible.",
+ option_origin);
+ option_no_checkout = 1;
+ }
+
+ if (!option_origin)
+ option_origin = "origin";
+
+ repo_name = argv[0];
+
+ path = get_repo_path(repo_name, &is_bundle);
+ if (path)
+ repo = xstrdup(make_nonrelative_path(repo_name));
+ else if (!strchr(repo_name, ':'))
+ repo = xstrdup(make_absolute_path(repo_name));
+ else
+ repo = repo_name;
+
+ if (argc == 2)
+ dir = xstrdup(argv[1]);
+ else
+ dir = guess_dir_name(repo_name, is_bundle, option_bare);
+ strip_trailing_slashes(dir);
+
+ dest_exists = !stat(dir, &buf);
+ if (dest_exists && !is_empty_dir(dir))
+ die("destination path '%s' already exists and is not "
+ "an empty directory.", dir);
+
+ strbuf_addf(&reflog_msg, "clone: from %s", repo);
+
+ if (option_bare)
+ work_tree = NULL;
+ else {
+ work_tree = getenv("GIT_WORK_TREE");
+ if (work_tree && !stat(work_tree, &buf))
+ die("working tree '%s' already exists.", work_tree);
+ }
+
+ if (option_bare || work_tree)
+ git_dir = xstrdup(dir);
+ else {
+ work_tree = dir;
+ git_dir = xstrdup(mkpath("%s/.git", dir));
+ }
+
+ if (!option_bare) {
+ junk_work_tree = work_tree;
+ if (safe_create_leading_directories_const(work_tree) < 0)
+ die_errno("could not create leading directories of '%s'",
+ work_tree);
+ if (!dest_exists && mkdir(work_tree, 0755))
+ die_errno("could not create work tree dir '%s'.",
+ work_tree);
+ set_git_work_tree(work_tree);
+ }
+ junk_git_dir = git_dir;
+ atexit(remove_junk);
+ sigchain_push_common(remove_junk_on_signal);
+
+ setenv(CONFIG_ENVIRONMENT, mkpath("%s/config", git_dir), 1);
+
+ if (safe_create_leading_directories_const(git_dir) < 0)
+ die("could not create leading directories of '%s'", git_dir);
+ set_git_dir(make_absolute_path(git_dir));
+
+ init_db(option_template, option_quiet ? INIT_DB_QUIET : 0);
+
+ /*
+ * At this point, the config exists, so we do not need the
+ * environment variable. We actually need to unset it, too, to
+ * re-enable parsing of the global configs.
+ */
+ unsetenv(CONFIG_ENVIRONMENT);
+
+ if (option_reference)
+ setup_reference(git_dir);
+
+ git_config(git_default_config, NULL);
+
+ if (option_bare) {
+ if (option_mirror)
+ src_ref_prefix = "refs/";
+ strbuf_addstr(&branch_top, src_ref_prefix);
+
+ git_config_set("core.bare", "true");
+ } else {
+ strbuf_addf(&branch_top, "refs/remotes/%s/", option_origin);
+ }
+
+ strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf);
+
+ if (option_mirror || !option_bare) {
+ /* Configure the remote */
+ strbuf_addf(&key, "remote.%s.fetch", option_origin);
+ git_config_set_multivar(key.buf, value.buf, "^$", 0);
+ strbuf_reset(&key);
+
+ if (option_mirror) {
+ strbuf_addf(&key, "remote.%s.mirror", option_origin);
+ git_config_set(key.buf, "true");
+ strbuf_reset(&key);
+ }
+
+ strbuf_addf(&key, "remote.%s.url", option_origin);
+ git_config_set(key.buf, repo);
+ strbuf_reset(&key);
+ }
+
+ fetch_pattern = value.buf;
+ refspec = parse_fetch_refspec(1, &fetch_pattern);
+
+ strbuf_reset(&value);
+
+ if (path && !is_bundle) {
+ refs = clone_local(path, git_dir);
+ mapped_refs = wanted_peer_refs(refs, refspec);
+ } else {
+ struct remote *remote = remote_get(argv[0]);
+ transport = transport_get(remote, remote->url[0]);
+
+ if (!transport->get_refs_list || !transport->fetch)
+ die("Don't know how to clone %s", transport->url);
+
+ transport_set_option(transport, TRANS_OPT_KEEP, "yes");
+
+ if (option_depth)
+ transport_set_option(transport, TRANS_OPT_DEPTH,
+ option_depth);
+
+ if (option_quiet)
+ transport->verbose = -1;
+ else if (option_verbose)
+ transport->verbose = 1;
+
+ if (option_progress)
+ transport->progress = 1;
+
+ if (option_upload_pack)
+ transport_set_option(transport, TRANS_OPT_UPLOADPACK,
+ option_upload_pack);
+
+ refs = transport_get_remote_refs(transport);
+ if (refs) {
+ mapped_refs = wanted_peer_refs(refs, refspec);
+ transport_fetch_refs(transport, mapped_refs);
+ }
+ }
+
+ if (refs) {
+ clear_extra_refs();
+
+ write_remote_refs(mapped_refs);
+
+ remote_head = find_ref_by_name(refs, "HEAD");
+ remote_head_points_at =
+ guess_remote_head(remote_head, mapped_refs, 0);
+
+ if (option_branch) {
+ struct strbuf head = STRBUF_INIT;
+ strbuf_addstr(&head, src_ref_prefix);
+ strbuf_addstr(&head, option_branch);
+ our_head_points_at =
+ find_ref_by_name(mapped_refs, head.buf);
+ strbuf_release(&head);
+
+ if (!our_head_points_at) {
+ warning("Remote branch %s not found in "
+ "upstream %s, using HEAD instead",
+ option_branch, option_origin);
+ our_head_points_at = remote_head_points_at;
+ }
+ }
+ else
+ our_head_points_at = remote_head_points_at;
+ }
+ else {
+ warning("You appear to have cloned an empty repository.");
+ our_head_points_at = NULL;
+ remote_head_points_at = NULL;
+ remote_head = NULL;
+ option_no_checkout = 1;
+ if (!option_bare)
+ install_branch_config(0, "master", option_origin,
+ "refs/heads/master");
+ }
+
+ if (remote_head_points_at && !option_bare) {
+ struct strbuf head_ref = STRBUF_INIT;
+ strbuf_addstr(&head_ref, branch_top.buf);
+ strbuf_addstr(&head_ref, "HEAD");
+ create_symref(head_ref.buf,
+ remote_head_points_at->peer_ref->name,
+ reflog_msg.buf);
+ }
+
+ if (our_head_points_at) {
+ /* Local default branch link */
+ create_symref("HEAD", our_head_points_at->name, NULL);
+ if (!option_bare) {
+ const char *head = skip_prefix(our_head_points_at->name,
+ "refs/heads/");
+ update_ref(reflog_msg.buf, "HEAD",
+ our_head_points_at->old_sha1,
+ NULL, 0, DIE_ON_ERR);
+ install_branch_config(0, head, option_origin,
+ our_head_points_at->name);
+ }
+ } else if (remote_head) {
+ /* Source had detached HEAD pointing somewhere. */
+ if (!option_bare) {
+ update_ref(reflog_msg.buf, "HEAD",
+ remote_head->old_sha1,
+ NULL, REF_NODEREF, DIE_ON_ERR);
+ our_head_points_at = remote_head;
+ }
+ } else {
+ /* Nothing to checkout out */
+ if (!option_no_checkout)
+ warning("remote HEAD refers to nonexistent ref, "
+ "unable to checkout.\n");
+ option_no_checkout = 1;
+ }
+
+ if (transport) {
+ transport_unlock_pack(transport);
+ transport_disconnect(transport);
+ }
+
+ if (!option_no_checkout) {
+ struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
+ struct unpack_trees_options opts;
+ struct tree *tree;
+ struct tree_desc t;
+ int fd;
+
+ /* We need to be in the new work tree for the checkout */
+ setup_work_tree();
+
+ fd = hold_locked_index(lock_file, 1);
+
+ memset(&opts, 0, sizeof opts);
+ opts.update = 1;
+ opts.merge = 1;
+ opts.fn = oneway_merge;
+ opts.verbose_update = !option_quiet;
+ opts.src_index = &the_index;
+ opts.dst_index = &the_index;
+
+ tree = parse_tree_indirect(our_head_points_at->old_sha1);
+ parse_tree(tree);
+ init_tree_desc(&t, tree->buffer, tree->size);
+ unpack_trees(1, &t, &opts);
+
+ if (write_cache(fd, active_cache, active_nr) ||
+ commit_locked_index(lock_file))
+ die("unable to write new index file");
+
+ err |= run_hook(NULL, "post-checkout", sha1_to_hex(null_sha1),
+ sha1_to_hex(our_head_points_at->old_sha1), "1",
+ NULL);
+
+ if (!err && option_recursive)
+ err = run_command_v_opt(argv_submodule, RUN_GIT_CMD);
+ }
+
+ strbuf_release(&reflog_msg);
+ strbuf_release(&branch_top);
+ strbuf_release(&key);
+ strbuf_release(&value);
+ junk_pid = 0;
+ return err;
+}