#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:
};
static int option_quiet, option_no_checkout, option_bare, option_mirror;
-static int option_local, option_no_hardlinks, option_shared;
+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;
"don't use local hardlinks, always copy"),
OPT_BOOLEAN('s', "shared", &option_shared,
"setup as shared repository"),
+ OPT_BOOLEAN(0, "recursive", &option_recursive,
+ "setup as shared repository"),
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",
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 *guess_dir_name(const char *repo, int is_bundle, int is_bare)
{
const char *end = repo + strlen(repo), *start;
+ char *dir;
/*
- * Strip trailing slashes and /.git
+ * Strip trailing spaces, slashes and /.git
*/
- while (repo < end && is_dir_sep(end[-1]))
+ 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)) {
if (is_bare) {
struct strbuf result = STRBUF_INIT;
strbuf_addf(&result, "%.*s.git", (int)(end - start), start);
- return strbuf_detach(&result, 0);
+ 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 xstrndup(start, end - start);
+ return dir;
}
static void strip_trailing_slashes(char *dir)
dir = opendir(src->buf);
if (!dir)
- die("failed to open %s\n", src->buf);
+ die_errno("failed to open '%s'", src->buf);
if (mkdir(dest->buf, 0777)) {
if (errno != EEXIST)
- die("failed to create directory %s\n", dest->buf);
+ die_errno("failed to create directory '%s'", dest->buf);
else if (stat(dest->buf, &buf))
- die("failed to stat %s\n", dest->buf);
+ die_errno("failed to stat '%s'", dest->buf);
else if (!S_ISDIR(buf.st_mode))
- die("%s exists and is not a directory\n", dest->buf);
+ die("%s exists and is not a directory", dest->buf);
}
strbuf_addch(src, '/');
}
if (unlink(dest->buf) && errno != ENOENT)
- die("failed to unlink %s\n", dest->buf);
+ die_errno("failed to unlink '%s'", dest->buf);
if (!option_no_hardlinks) {
if (!link(src->buf, dest->buf))
continue;
if (option_local)
- die("failed to create link %s\n", dest->buf);
+ die_errno("failed to create link '%s'", dest->buf);
option_no_hardlinks = 1;
}
- if (copy_file(dest->buf, src->buf, 0666))
- die("failed to copy file to %s\n", dest->buf);
+ if (copy_file_with_time(dest->buf, src->buf, 0666))
+ die_errno("failed to copy file to '%s'", dest->buf);
}
closedir(dir);
}
static const char *junk_work_tree;
static const char *junk_git_dir;
-pid_t junk_pid;
+static pid_t junk_pid;
static void remove_junk(void)
{
static void remove_junk_on_signal(int signo)
{
remove_junk();
- signal(SIGINT, SIG_DFL);
+ sigchain_pop(signo);
raise(signo);
}
-static const struct ref *locate_head(const struct ref *refs,
- const struct ref *mapped_refs,
- const struct ref **remote_head_p)
-{
- const struct ref *remote_head = NULL;
- const struct ref *remote_master = NULL;
- const struct ref *r;
- for (r = refs; r; r = r->next)
- if (!strcmp(r->name, "HEAD"))
- remote_head = r;
-
- for (r = mapped_refs; r; r = r->next)
- if (!strcmp(r->name, "refs/heads/master"))
- remote_master = r;
-
- if (remote_head_p)
- *remote_head_p = remote_head;
-
- /* If there's no HEAD value at all, never mind. */
- if (!remote_head)
- return NULL;
-
- /* If refs/heads/master could be right, it is. */
- if (remote_master && !hashcmp(remote_master->old_sha1,
- remote_head->old_sha1))
- return remote_master;
-
- /* Look for another ref that points there */
- for (r = mapped_refs; r; r = r->next)
- if (r != remote_head &&
- !hashcmp(r->old_sha1, remote_head->old_sha1))
- return r;
-
- /* Nothing is the same */
- return NULL;
-}
-
-static struct ref *write_remote_refs(const struct ref *refs,
- struct refspec *refspec, const char *reflog)
+static struct ref *wanted_peer_refs(const struct ref *refs,
+ struct refspec *refspec)
{
struct ref *local_refs = NULL;
struct ref **tail = &local_refs;
- struct ref *r;
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();
-
- return local_refs;
}
int cmd_clone(int argc, const char **argv, const char *prefix)
{
- int use_local_hardlinks = 1;
- int use_separate_remote = 1;
int is_bundle = 0;
struct stat buf;
const char *repo_name, *repo, *work_tree, *git_dir;
char *path, *dir;
- const struct ref *refs, *head_points_at, *remote_head, *mapped_refs;
+ int dest_exists;
+ const struct ref *refs, *remote_head, *mapped_refs;
+ const struct ref *remote_head_points_at;
+ const struct ref *our_head_points_at;
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;
+ struct refspec *refspec;
+ const char *fetch_pattern;
junk_pid = getpid();
- argc = parse_options(argc, argv, builtin_clone_options,
+ argc = parse_options(argc, argv, prefix, builtin_clone_options,
builtin_clone_usage, 0);
if (argc == 0)
die("You must specify a repository to clone.");
- if (option_no_hardlinks)
- use_local_hardlinks = 0;
-
if (option_mirror)
option_bare = 1;
die("--bare and --origin %s options are incompatible.",
option_origin);
option_no_checkout = 1;
- use_separate_remote = 0;
}
if (!option_origin)
dir = guess_dir_name(repo_name, is_bundle, option_bare);
strip_trailing_slashes(dir);
- if (!stat(dir, &buf))
- die("destination directory '%s' already exists.", 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) {
junk_work_tree = work_tree;
if (safe_create_leading_directories_const(work_tree) < 0)
- die("could not create leading directories of '%s': %s",
- work_tree, strerror(errno));
- if (mkdir(work_tree, 0755))
- die("could not create work tree dir '%s': %s.",
- work_tree, strerror(errno));
+ 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);
- signal(SIGINT, remove_junk_on_signal);
+ sigchain_push_common(remove_junk_on_signal);
- setenv(CONFIG_ENVIRONMENT, xstrdup(mkpath("%s/config", git_dir)), 1);
+ 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);
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, "^$", 0);
+ strbuf_reset(&key);
+
if (option_mirror) {
strbuf_addf(&key, "remote.%s.mirror", option_origin);
git_config_set(key.buf, "true");
strbuf_addf(&key, "remote.%s.url", option_origin);
git_config_set(key.buf, repo);
- strbuf_reset(&key);
-
- strbuf_addf(&key, "remote.%s.fetch", option_origin);
- strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf);
- git_config_set_multivar(key.buf, value.buf, "^$", 0);
strbuf_reset(&key);
- strbuf_reset(&value);
}
- refspec.force = 0;
- refspec.pattern = 1;
- refspec.src = src_ref_prefix;
- refspec.dst = branch_top.buf;
+ fetch_pattern = value.buf;
+ refspec = parse_fetch_refspec(1, &fetch_pattern);
- if (path && !is_bundle)
+ strbuf_reset(&value);
+
+ if (path && !is_bundle) {
refs = clone_local(path, git_dir);
- else {
+ mapped_refs = wanted_peer_refs(refs, refspec);
+ } else {
struct remote *remote = remote_get(argv[0]);
transport = transport_get(remote, remote->url[0]);
option_upload_pack);
refs = transport_get_remote_refs(transport);
- transport_fetch_refs(transport, refs);
+ if (refs) {
+ mapped_refs = wanted_peer_refs(refs, refspec);
+ transport_fetch_refs(transport, mapped_refs);
+ }
}
- clear_extra_refs();
-
- mapped_refs = write_remote_refs(refs, &refspec, reflog_msg.buf);
+ 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");
+ }
- head_points_at = locate_head(refs, mapped_refs, &remote_head);
+ 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 (head_points_at) {
+ if (our_head_points_at) {
/* Local default branch link */
- create_symref("HEAD", head_points_at->name, NULL);
-
+ create_symref("HEAD", our_head_points_at->name, NULL);
if (!option_bare) {
- struct strbuf head_ref = STRBUF_INIT;
- const char *head = head_points_at->name;
-
- if (!prefixcmp(head, "refs/heads/"))
- head += 11;
-
- /* Set up the initial local branch */
-
- /* Local branch initial value */
+ const char *head = skip_prefix(our_head_points_at->name,
+ "refs/heads/");
update_ref(reflog_msg.buf, "HEAD",
- head_points_at->old_sha1,
+ our_head_points_at->old_sha1,
NULL, 0, DIE_ON_ERR);
-
- strbuf_addstr(&head_ref, branch_top.buf);
- strbuf_addstr(&head_ref, "HEAD");
-
- /* Remote branch link */
- create_symref(head_ref.buf,
- head_points_at->peer_ref->name,
- reflog_msg.buf);
-
- strbuf_addf(&key, "branch.%s.remote", head);
- git_config_set(key.buf, option_origin);
- strbuf_reset(&key);
- strbuf_addf(&key, "branch.%s.merge", head);
- git_config_set(key.buf, head_points_at->name);
+ 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)
+ 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)
option_no_checkout = 1;
}
- if (transport)
+ if (transport) {
transport_unlock_pack(transport);
+ transport_disconnect(transport);
+ }
if (!option_no_checkout) {
struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
opts.src_index = &the_index;
opts.dst_index = &the_index;
- tree = parse_tree_indirect(remote_head->old_sha1);
+ 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(&key);
strbuf_release(&value);
junk_pid = 0;
- return 0;
+ return err;
}