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-rw-r--r--Makefile2
-rw-r--r--builtin-clone.c550
-rw-r--r--builtin-fetch.c10
-rw-r--r--builtin-init-db.c199
-rw-r--r--builtin.h1
-rw-r--r--cache.h7
-rwxr-xr-xcontrib/examples/git-clone.sh (renamed from git-clone.sh)0
-rw-r--r--environment.c24
-rw-r--r--git.c1
-rw-r--r--lockfile.c28
-rw-r--r--refs.c18
-rw-r--r--refs.h9
-rw-r--r--remote.c10
-rw-r--r--remote.h2
-rw-r--r--sha1_file.c12
-rwxr-xr-xt/t5601-clone.sh7
-rwxr-xr-xt/t5700-clone-reference.sh35
-rw-r--r--transport.c16
-rw-r--r--transport.h4
19 files changed, 816 insertions, 119 deletions
diff --git a/Makefile b/Makefile
index 865e2bf..f08d5f7 100644
--- a/Makefile
+++ b/Makefile
@@ -235,7 +235,6 @@ BASIC_LDFLAGS =
SCRIPT_SH += git-am.sh
SCRIPT_SH += git-bisect.sh
-SCRIPT_SH += git-clone.sh
SCRIPT_SH += git-filter-branch.sh
SCRIPT_SH += git-lost-found.sh
SCRIPT_SH += git-merge-octopus.sh
@@ -484,6 +483,7 @@ BUILTIN_OBJS += builtin-check-ref-format.o
BUILTIN_OBJS += builtin-checkout-index.o
BUILTIN_OBJS += builtin-checkout.o
BUILTIN_OBJS += builtin-clean.o
+BUILTIN_OBJS += builtin-clone.o
BUILTIN_OBJS += builtin-commit-tree.o
BUILTIN_OBJS += builtin-commit.o
BUILTIN_OBJS += builtin-config.o
diff --git a/builtin-clone.c b/builtin-clone.c
new file mode 100644
index 0000000..2a3f673
--- /dev/null
+++ b/builtin-clone.c
@@ -0,0 +1,550 @@
+/*
+ * 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"
+
+/*
+ * 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;
+static int option_local, option_no_hardlinks, option_shared;
+static char *option_template, *option_reference, *option_depth;
+static char *option_origin = NULL;
+static char *option_upload_pack = "git-upload-pack";
+
+static struct option builtin_clone_options[] = {
+ OPT__QUIET(&option_quiet),
+ OPT_BOOLEAN('n', "no-checkout", &option_no_checkout,
+ "don't create a checkout"),
+ OPT_BOOLEAN(0, "bare", &option_bare, "create a bare repository"),
+ OPT_BOOLEAN(0, "naked", &option_bare, "create a bare repository"),
+ 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_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 or 'origin' to track upstream"),
+ 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 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 (!stat(path, &st) && S_ISDIR(st.st_mode)) {
+ *is_bundle = 0;
+ return xstrdup(make_absolute_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_absolute_path(path));
+ }
+ }
+
+ return NULL;
+}
+
+static char *guess_dir_name(const char *repo, int is_bundle)
+{
+ const char *p, *start, *end, *limit;
+ int after_slash_or_colon;
+
+ /* Guess dir name from repository: strip trailing '/',
+ * strip trailing '[:/]*.{git,bundle}', strip leading '.*[/:]'. */
+
+ after_slash_or_colon = 1;
+ limit = repo + strlen(repo);
+ start = repo;
+ end = limit;
+ for (p = repo; p < limit; p++) {
+ const char *prefix = is_bundle ? ".bundle" : ".git";
+ if (!prefixcmp(p, prefix)) {
+ if (!after_slash_or_colon)
+ end = p;
+ p += strlen(prefix) - 1;
+ } else if (!prefixcmp(p, ".bundle")) {
+ if (!after_slash_or_colon)
+ end = p;
+ p += 7;
+ } else if (*p == '/' || *p == ':') {
+ if (end == limit)
+ end = p;
+ after_slash_or_colon = 1;
+ } else if (after_slash_or_colon) {
+ start = p;
+ end = limit;
+ after_slash_or_colon = 0;
+ }
+ }
+
+ return xstrndup(start, end - start);
+}
+
+static int is_directory(const char *path)
+{
+ struct stat buf;
+
+ return !stat(path, &buf) && S_ISDIR(buf.st_mode);
+}
+
+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(char *src, char *dest)
+{
+ struct dirent *de;
+ struct stat buf;
+ int src_len, dest_len;
+ DIR *dir;
+
+ dir = opendir(src);
+ if (!dir)
+ die("failed to open %s\n", src);
+
+ if (mkdir(dest, 0777)) {
+ if (errno != EEXIST)
+ die("failed to create directory %s\n", dest);
+ else if (stat(dest, &buf))
+ die("failed to stat %s\n", dest);
+ else if (!S_ISDIR(buf.st_mode))
+ die("%s exists and is not a directory\n", dest);
+ }
+
+ src_len = strlen(src);
+ src[src_len] = '/';
+ dest_len = strlen(dest);
+ dest[dest_len] = '/';
+
+ while ((de = readdir(dir)) != NULL) {
+ strcpy(src + src_len + 1, de->d_name);
+ strcpy(dest + dest_len + 1, de->d_name);
+ if (stat(src, &buf)) {
+ warning ("failed to stat %s\n", src);
+ continue;
+ }
+ if (S_ISDIR(buf.st_mode)) {
+ if (de->d_name[0] != '.')
+ copy_or_link_directory(src, dest);
+ continue;
+ }
+
+ if (unlink(dest) && errno != ENOENT)
+ die("failed to unlink %s\n", dest);
+ if (!option_no_hardlinks) {
+ if (!link(src, dest))
+ continue;
+ if (option_local)
+ die("failed to create link %s\n", dest);
+ option_no_hardlinks = 1;
+ }
+ if (copy_file(dest, src, 0666))
+ die("failed to copy file to %s\n", dest);
+ }
+ closedir(dir);
+}
+
+static const struct ref *clone_local(const char *src_repo,
+ const char *dest_repo)
+{
+ const struct ref *ret;
+ char src[PATH_MAX];
+ char dest[PATH_MAX];
+ struct remote *remote;
+ struct transport *transport;
+
+ if (option_shared)
+ add_to_alternates_file(src_repo);
+ else {
+ snprintf(src, PATH_MAX, "%s/objects", src_repo);
+ snprintf(dest, PATH_MAX, "%s/objects", dest_repo);
+ copy_or_link_directory(src, 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;
+pid_t junk_pid;
+
+static void remove_junk(void)
+{
+ struct strbuf sb;
+ if (getpid() != junk_pid)
+ return;
+ strbuf_init(&sb, 0);
+ 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();
+ signal(SIGINT, SIG_DFL);
+ 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)
+{
+ struct ref *local_refs = NULL;
+ struct ref **tail = &local_refs;
+ struct ref *r;
+
+ get_fetch_map(refs, refspec, &tail, 0);
+ get_fetch_map(refs, tag_refspec, &tail, 0);
+
+ for (r = local_refs; r; r = r->next)
+ update_ref(reflog,
+ r->peer_ref->name, r->old_sha1, NULL, 0, DIE_ON_ERR);
+ 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;
+ char branch_top[256], key[256], value[256];
+ struct strbuf reflog_msg;
+
+ struct refspec refspec;
+
+ junk_pid = getpid();
+
+ argc = parse_options(argc, argv, 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_bare) {
+ if (option_origin)
+ die("--bare and --origin %s options are incompatible.",
+ option_origin);
+ option_no_checkout = 1;
+ use_separate_remote = 0;
+ }
+
+ if (!option_origin)
+ option_origin = "origin";
+
+ repo_name = argv[0];
+
+ path = get_repo_path(repo_name, &is_bundle);
+ if (path)
+ repo = path;
+ 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);
+
+ if (!stat(dir, &buf))
+ die("destination directory '%s' already exists.", dir);
+
+ strbuf_init(&reflog_msg, 0);
+ 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 (mkdir(work_tree, 0755))
+ die("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);
+
+ setenv(CONFIG_ENVIRONMENT, xstrdup(mkpath("%s/config", git_dir)), 1);
+
+ set_git_dir(make_absolute_path(git_dir));
+
+ fprintf(stderr, "Initialize %s\n", git_dir);
+ init_db(option_template, option_quiet ? INIT_DB_QUIET : 0);
+
+ if (option_reference)
+ setup_reference(git_dir);
+
+ git_config(git_default_config);
+
+ if (option_bare) {
+ strcpy(branch_top, "refs/heads/");
+
+ git_config_set("core.bare", "true");
+ } else {
+ snprintf(branch_top, sizeof(branch_top),
+ "refs/remotes/%s/", option_origin);
+
+ /* Configure the remote */
+ snprintf(key, sizeof(key), "remote.%s.url", option_origin);
+ git_config_set(key, repo);
+
+ snprintf(key, sizeof(key), "remote.%s.fetch", option_origin);
+ snprintf(value, sizeof(value),
+ "+refs/heads/*:%s*", branch_top);
+ git_config_set_multivar(key, value, "^$", 0);
+ }
+
+ refspec.force = 0;
+ refspec.pattern = 1;
+ refspec.src = "refs/heads/";
+ refspec.dst = branch_top;
+
+ if (path && !is_bundle)
+ refs = clone_local(path, git_dir);
+ else {
+ struct remote *remote = remote_get(argv[0]);
+ struct transport *transport = transport_get(remote, argv[0]);
+
+ 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;
+
+ refs = transport_get_remote_refs(transport);
+ transport_fetch_refs(transport, refs);
+ }
+
+ clear_extra_refs();
+
+ mapped_refs = write_remote_refs(refs, &refspec, reflog_msg.buf);
+
+ head_points_at = locate_head(refs, mapped_refs, &remote_head);
+
+ if (head_points_at) {
+ /* Local default branch link */
+ create_symref("HEAD", head_points_at->name, NULL);
+
+ if (!option_bare) {
+ struct strbuf head_ref;
+ const char *head = head_points_at->name;
+
+ if (!prefixcmp(head, "refs/heads/"))
+ head += 11;
+
+ /* Set up the initial local branch */
+
+ /* Local branch initial value */
+ update_ref(reflog_msg.buf, "HEAD",
+ head_points_at->old_sha1,
+ NULL, 0, DIE_ON_ERR);
+
+ strbuf_init(&head_ref, 0);
+ strbuf_addstr(&head_ref, branch_top);
+ strbuf_addstr(&head_ref, "HEAD");
+
+ /* Remote branch link */
+ create_symref(head_ref.buf,
+ head_points_at->peer_ref->name,
+ reflog_msg.buf);
+
+ snprintf(key, sizeof(key), "branch.%s.remote", head);
+ git_config_set(key, option_origin);
+ snprintf(key, sizeof(key), "branch.%s.merge", head);
+ git_config_set(key, 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);
+ } 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 (!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(remote_head->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");
+ }
+
+ strbuf_release(&reflog_msg);
+ junk_pid = 0;
+ return 0;
+}
diff --git a/builtin-fetch.c b/builtin-fetch.c
index f6584ec..bfe7711 100644
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -127,14 +127,8 @@ static struct ref *get_ref_map(struct transport *transport,
/* Merge everything on the command line, but not --tags */
for (rm = ref_map; rm; rm = rm->next)
rm->merge = 1;
- if (tags == TAGS_SET) {
- struct refspec refspec;
- refspec.src = "refs/tags/";
- refspec.dst = "refs/tags/";
- refspec.pattern = 1;
- refspec.force = 0;
- get_fetch_map(remote_refs, &refspec, &tail, 0);
- }
+ if (tags == TAGS_SET)
+ get_fetch_map(remote_refs, tag_refspec, &tail, 0);
} else {
/* Use the defaults */
struct remote *remote = transport->remote;
diff --git a/builtin-init-db.c b/builtin-init-db.c
index b061317..3968c99 100644
--- a/builtin-init-db.c
+++ b/builtin-init-db.c
@@ -104,12 +104,14 @@ static void copy_templates_1(char *path, int baselen,
}
}
-static void copy_templates(const char *git_dir, int len, const char *template_dir)
+static void copy_templates(const char *template_dir)
{
char path[PATH_MAX];
char template_path[PATH_MAX];
int template_len;
DIR *dir;
+ const char *git_dir = get_git_dir();
+ int len = strlen(git_dir);
if (!template_dir)
template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
@@ -156,6 +158,8 @@ static void copy_templates(const char *git_dir, int len, const char *template_di
}
memcpy(path, git_dir, len);
+ if (len && path[len - 1] != '/')
+ path[len++] = '/';
path[len] = 0;
copy_templates_1(path, len,
template_path, template_len,
@@ -163,8 +167,9 @@ static void copy_templates(const char *git_dir, int len, const char *template_di
closedir(dir);
}
-static int create_default_files(const char *git_dir, const char *template_path)
+static int create_default_files(const char *template_path)
{
+ const char *git_dir = get_git_dir();
unsigned len = strlen(git_dir);
static char path[PATH_MAX];
struct stat st1;
@@ -183,19 +188,15 @@ static int create_default_files(const char *git_dir, const char *template_path)
/*
* Create .git/refs/{heads,tags}
*/
- strcpy(path + len, "refs");
- safe_create_dir(path, 1);
- strcpy(path + len, "refs/heads");
- safe_create_dir(path, 1);
- strcpy(path + len, "refs/tags");
- safe_create_dir(path, 1);
+ safe_create_dir(git_path("refs"), 1);
+ safe_create_dir(git_path("refs/heads"), 1);
+ safe_create_dir(git_path("refs/tags"), 1);
/* First copy the templates -- we might have the default
* config file there, in which case we would want to read
* from it after installing.
*/
- path[len] = 0;
- copy_templates(path, len, template_path);
+ copy_templates(template_path);
git_config(git_default_config);
@@ -204,14 +205,10 @@ static int create_default_files(const char *git_dir, const char *template_path)
* shared-repository settings, we would need to fix them up.
*/
if (shared_repository) {
- path[len] = 0;
- adjust_shared_perm(path);
- strcpy(path + len, "refs");
- adjust_shared_perm(path);
- strcpy(path + len, "refs/heads");
- adjust_shared_perm(path);
- strcpy(path + len, "refs/tags");
- adjust_shared_perm(path);
+ adjust_shared_perm(get_git_dir());
+ adjust_shared_perm(git_path("refs"));
+ adjust_shared_perm(git_path("refs/heads"));
+ adjust_shared_perm(git_path("refs/tags"));
}
/*
@@ -251,8 +248,10 @@ static int create_default_files(const char *git_dir, const char *template_path)
/* allow template config file to override the default */
if (log_all_ref_updates == -1)
git_config_set("core.logallrefupdates", "true");
- if (work_tree != git_work_tree_cfg)
+ if (prefixcmp(git_dir, work_tree) ||
+ strcmp(git_dir + strlen(work_tree), "/.git")) {
git_config_set("core.worktree", work_tree);
+ }
}
if (!reinit) {
@@ -278,42 +277,90 @@ static int create_default_files(const char *git_dir, const char *template_path)
return reinit;
}
-static void guess_repository_type(const char *git_dir)
+int init_db(const char *template_dir, unsigned int flags)
+{
+ const char *sha1_dir;
+ char *path;
+ int len, reinit;
+
+ safe_create_dir(get_git_dir(), 0);
+
+ /* Check to see if the repository version is right.
+ * Note that a newly created repository does not have
+ * config file, so this will not fail. What we are catching
+ * is an attempt to reinitialize new repository with an old tool.
+ */
+ check_repository_format();
+
+ reinit = create_default_files(template_dir);
+
+ sha1_dir = get_object_directory();
+ len = strlen(sha1_dir);
+ path = xmalloc(len + 40);
+ memcpy(path, sha1_dir, len);
+
+ safe_create_dir(sha1_dir, 1);
+ strcpy(path+len, "/pack");
+ safe_create_dir(path, 1);
+ strcpy(path+len, "/info");
+ safe_create_dir(path, 1);
+
+ if (shared_repository) {
+ char buf[10];
+ /* We do not spell "group" and such, so that
+ * the configuration can be read by older version
+ * of git. Note, we use octal numbers for new share modes,
+ * and compatibility values for PERM_GROUP and
+ * PERM_EVERYBODY.
+ */
+ if (shared_repository == PERM_GROUP)
+ sprintf(buf, "%d", OLD_PERM_GROUP);
+ else if (shared_repository == PERM_EVERYBODY)
+ sprintf(buf, "%d", OLD_PERM_EVERYBODY);
+ else
+ sprintf(buf, "0%o", shared_repository);
+ git_config_set("core.sharedrepository", buf);
+ git_config_set("receive.denyNonFastforwards", "true");
+ }
+
+ if (!(flags & INIT_DB_QUIET))
+ printf("%s%s Git repository in %s/\n",
+ reinit ? "Reinitialized existing" : "Initialized empty",
+ shared_repository ? " shared" : "",
+ get_git_dir());
+
+ return 0;
+}
+
+static int guess_repository_type(const char *git_dir)
{
char cwd[PATH_MAX];
const char *slash;
- if (0 <= is_bare_repository_cfg)
- return;
- if (!git_dir)
- return;
-
/*
* "GIT_DIR=. git init" is always bare.
* "GIT_DIR=`pwd` git init" too.
*/
if (!strcmp(".", git_dir))
- goto force_bare;
+ return 1;
if (!getcwd(cwd, sizeof(cwd)))
die("cannot tell cwd");
if (!strcmp(git_dir, cwd))
- goto force_bare;
+ return 1;
/*
* "GIT_DIR=.git or GIT_DIR=something/.git is usually not.
*/
if (!strcmp(git_dir, ".git"))
- return;
+ return 0;
slash = strrchr(git_dir, '/');
if (slash && !strcmp(slash, "/.git"))
- return;
+ return 0;
/*
* Otherwise it is often bare. At this point
* we are just guessing.
*/
- force_bare:
- is_bare_repository_cfg = 1;
- return;
+ return 1;
}
static const char init_db_usage[] =
@@ -328,11 +375,9 @@ static const char init_db_usage[] =
int cmd_init_db(int argc, const char **argv, const char *prefix)
{
const char *git_dir;
- const char *sha1_dir;
const char *template_dir = NULL;
- char *path;
- int len, i, reinit;
- int quiet = 0;
+ unsigned int flags = 0;
+ int i;
for (i = 1; i < argc; i++, argv++) {
const char *arg = argv[1];
@@ -343,7 +388,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
else if (!prefixcmp(arg, "--shared="))
shared_repository = git_config_perm("arg", arg+9);
else if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet"))
- quiet = 1;
+ flags |= INIT_DB_QUIET;
else
usage(init_db_usage);
}
@@ -360,71 +405,35 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
GIT_WORK_TREE_ENVIRONMENT,
GIT_DIR_ENVIRONMENT);
- guess_repository_type(git_dir);
-
- if (is_bare_repository_cfg <= 0) {
- git_work_tree_cfg = xcalloc(PATH_MAX, 1);
- if (!getcwd(git_work_tree_cfg, PATH_MAX))
- die ("Cannot access current working directory.");
- if (access(get_git_work_tree(), X_OK))
- die ("Cannot access work tree '%s'",
- get_git_work_tree());
- }
-
/*
* Set up the default .git directory contents
*/
- git_dir = getenv(GIT_DIR_ENVIRONMENT);
if (!git_dir)
git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
- safe_create_dir(git_dir, 0);
-
- /* Check to see if the repository version is right.
- * Note that a newly created repository does not have
- * config file, so this will not fail. What we are catching
- * is an attempt to reinitialize new repository with an old tool.
- */
- check_repository_format();
-
- reinit = create_default_files(git_dir, template_dir);
-
- /*
- * And set up the object store.
- */
- sha1_dir = get_object_directory();
- len = strlen(sha1_dir);
- path = xmalloc(len + 40);
- memcpy(path, sha1_dir, len);
-
- safe_create_dir(sha1_dir, 1);
- strcpy(path+len, "/pack");
- safe_create_dir(path, 1);
- strcpy(path+len, "/info");
- safe_create_dir(path, 1);
- if (shared_repository) {
- char buf[10];
- /* We do not spell "group" and such, so that
- * the configuration can be read by older version
- * of git. Note, we use octal numbers for new share modes,
- * and compatibility values for PERM_GROUP and
- * PERM_EVERYBODY.
- */
- if (shared_repository == PERM_GROUP)
- sprintf(buf, "%d", OLD_PERM_GROUP);
- else if (shared_repository == PERM_EVERYBODY)
- sprintf(buf, "%d", OLD_PERM_EVERYBODY);
- else
- sprintf(buf, "0%o", shared_repository);
- git_config_set("core.sharedrepository", buf);
- git_config_set("receive.denyNonFastforwards", "true");
+ if (is_bare_repository_cfg < 0)
+ is_bare_repository_cfg = guess_repository_type(git_dir);
+
+ if (!is_bare_repository_cfg) {
+ if (git_dir) {
+ const char *git_dir_parent = strrchr(git_dir, '/');
+ if (git_dir_parent) {
+ char *rel = xstrndup(git_dir, git_dir_parent - git_dir);
+ git_work_tree_cfg = xstrdup(make_absolute_path(rel));
+ free(rel);
+ }
+ }
+ if (!git_work_tree_cfg) {
+ git_work_tree_cfg = xcalloc(PATH_MAX, 1);
+ if (!getcwd(git_work_tree_cfg, PATH_MAX))
+ die ("Cannot access current working directory.");
+ }
+ if (access(get_git_work_tree(), X_OK))
+ die ("Cannot access work tree '%s'",
+ get_git_work_tree());
}
- if (!quiet)
- printf("%s%s Git repository in %s/\n",
- reinit ? "Reinitialized existing" : "Initialized empty",
- shared_repository ? " shared" : "",
- git_dir);
+ set_git_dir(make_absolute_path(git_dir));
- return 0;
+ return init_db(template_dir, flags);
}
diff --git a/builtin.h b/builtin.h
index 95126fd..23a90de 100644
--- a/builtin.h
+++ b/builtin.h
@@ -24,6 +24,7 @@ extern int cmd_check_attr(int argc, const char **argv, const char *prefix);
extern int cmd_check_ref_format(int argc, const char **argv, const char *prefix);
extern int cmd_cherry(int argc, const char **argv, const char *prefix);
extern int cmd_cherry_pick(int argc, const char **argv, const char *prefix);
+extern int cmd_clone(int argc, const char **argv, const char *prefix);
extern int cmd_clean(int argc, const char **argv, const char *prefix);
extern int cmd_commit(int argc, const char **argv, const char *prefix);
extern int cmd_commit_tree(int argc, const char **argv, const char *prefix);
diff --git a/cache.h b/cache.h
index ef330b4..3d4e8e7 100644
--- a/cache.h
+++ b/cache.h
@@ -317,6 +317,7 @@ extern char *get_graft_file(void);
extern int set_git_dir(const char *path);
extern const char *get_git_work_tree(void);
extern const char *read_gitfile_gently(const char *path);
+extern void set_git_work_tree(const char *tree);
#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
@@ -329,6 +330,10 @@ extern const char *prefix_filename(const char *prefix, int len, const char *path
extern void verify_filename(const char *prefix, const char *name);
extern void verify_non_filename(const char *prefix, const char *name);
+#define INIT_DB_QUIET 0x0001
+
+extern int init_db(const char *template_dir, unsigned int flags);
+
#define alloc_nr(x) (((x)+16)*3/2)
/*
@@ -399,6 +404,7 @@ struct lock_file {
char filename[PATH_MAX];
};
extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
+extern int hold_lock_file_for_append(struct lock_file *, const char *path, int);
extern int commit_lock_file(struct lock_file *);
extern int hold_locked_index(struct lock_file *, int);
@@ -616,6 +622,7 @@ extern struct alternate_object_database {
char base[FLEX_ARRAY]; /* more */
} *alt_odb_list;
extern void prepare_alt_odb(void);
+extern void add_to_alternates_file(const char *reference);
struct pack_window {
struct pack_window *next;
diff --git a/git-clone.sh b/contrib/examples/git-clone.sh
index 547228e..547228e 100755
--- a/git-clone.sh
+++ b/contrib/examples/git-clone.sh
diff --git a/environment.c b/environment.c
index 4fcb471..73feb2d 100644
--- a/environment.c
+++ b/environment.c
@@ -44,7 +44,7 @@ enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
/* This is set by setup_git_dir_gently() and/or git_default_config() */
char *git_work_tree_cfg;
-static const char *work_tree;
+static char *work_tree;
static const char *git_dir;
static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
@@ -86,10 +86,26 @@ const char *get_git_dir(void)
return git_dir;
}
+static int git_work_tree_initialized;
+
+/*
+ * Note. This works only before you used a work tree. This was added
+ * primarily to support git-clone to work in a new repository it just
+ * created, and is not meant to flip between different work trees.
+ */
+void set_git_work_tree(const char *new_work_tree)
+{
+ if (is_bare_repository_cfg >= 0)
+ die("cannot set work tree after initialization");
+ git_work_tree_initialized = 1;
+ free(work_tree);
+ work_tree = xstrdup(make_absolute_path(new_work_tree));
+ is_bare_repository_cfg = 0;
+}
+
const char *get_git_work_tree(void)
{
- static int initialized = 0;
- if (!initialized) {
+ if (!git_work_tree_initialized) {
work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
/* core.bare = true overrides implicit and config work tree */
if (!work_tree && is_bare_repository_cfg < 1) {
@@ -99,7 +115,7 @@ const char *get_git_work_tree(void)
work_tree = xstrdup(make_absolute_path(git_path(work_tree)));
} else if (work_tree)
work_tree = xstrdup(make_absolute_path(work_tree));
- initialized = 1;
+ git_work_tree_initialized = 1;
if (work_tree)
is_bare_repository_cfg = 0;
}
diff --git a/git.c b/git.c
index 89b431f..2c9004f 100644
--- a/git.c
+++ b/git.c
@@ -286,6 +286,7 @@ static void handle_internal_command(int argc, const char **argv)
{ "check-attr", cmd_check_attr, RUN_SETUP | NEED_WORK_TREE },
{ "cherry", cmd_cherry, RUN_SETUP },
{ "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE },
+ { "clone", cmd_clone },
{ "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE },
{ "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE },
{ "commit-tree", cmd_commit_tree, RUN_SETUP },
diff --git a/lockfile.c b/lockfile.c
index b0118d0..cfc7335 100644
--- a/lockfile.c
+++ b/lockfile.c
@@ -160,6 +160,34 @@ int hold_lock_file_for_update(struct lock_file *lk, const char *path, int die_on
return fd;
}
+int hold_lock_file_for_append(struct lock_file *lk, const char *path, int die_on_error)
+{
+ int fd, orig_fd;
+
+ fd = lock_file(lk, path);
+ if (fd < 0) {
+ if (die_on_error)
+ die("unable to create '%s.lock': %s", path, strerror(errno));
+ return fd;
+ }
+
+ orig_fd = open(path, O_RDONLY);
+ if (orig_fd < 0) {
+ if (errno != ENOENT) {
+ if (die_on_error)
+ die("cannot open '%s' for copying", path);
+ close(fd);
+ return error("cannot open '%s' for copying", path);
+ }
+ } else if (copy_fd(orig_fd, fd)) {
+ if (die_on_error)
+ exit(128);
+ close(fd);
+ return -1;
+ }
+ return fd;
+}
+
int close_lock_file(struct lock_file *lk)
{
int fd = lk->fd;
diff --git a/refs.c b/refs.c
index 9b495eb..9e8e858 100644
--- a/refs.c
+++ b/refs.c
@@ -159,6 +159,8 @@ static struct cached_refs {
} cached_refs;
static struct ref_list *current_ref;
+static struct ref_list *extra_refs;
+
static void free_ref_list(struct ref_list *list)
{
struct ref_list *next;
@@ -215,6 +217,17 @@ static void read_packed_refs(FILE *f, struct cached_refs *cached_refs)
cached_refs->packed = sort_ref_list(list);
}
+void add_extra_ref(const char *name, const unsigned char *sha1, int flag)
+{
+ extra_refs = add_ref(name, sha1, flag, extra_refs, NULL);
+}
+
+void clear_extra_refs(void)
+{
+ free_ref_list(extra_refs);
+ extra_refs = NULL;
+}
+
static struct ref_list *get_packed_refs(void)
{
if (!cached_refs.did_packed) {
@@ -547,6 +560,11 @@ static int do_for_each_ref(const char *base, each_ref_fn fn, int trim,
struct ref_list *packed = get_packed_refs();
struct ref_list *loose = get_loose_refs();
+ struct ref_list *extra;
+
+ for (extra = extra_refs; extra; extra = extra->next)
+ retval = do_one_ref(base, fn, trim, cb_data, extra);
+
while (packed && loose) {
struct ref_list *entry;
int cmp = strcmp(packed->name, loose->name);
diff --git a/refs.h b/refs.h
index 06abee1..06ad260 100644
--- a/refs.h
+++ b/refs.h
@@ -24,6 +24,15 @@ extern int for_each_tag_ref(each_ref_fn, void *);
extern int for_each_branch_ref(each_ref_fn, void *);
extern int for_each_remote_ref(each_ref_fn, void *);
+/*
+ * Extra refs will be listed by for_each_ref() before any actual refs
+ * for the duration of this process or until clear_extra_refs() is
+ * called. Only extra refs added before for_each_ref() is called will
+ * be listed on a given call of for_each_ref().
+ */
+extern void add_extra_ref(const char *refname, const unsigned char *sha1, int flags);
+extern void clear_extra_refs(void);
+
extern int peel_ref(const char *, unsigned char *);
/** Locks a "refs/" ref returning the lock on success and NULL on failure. **/
diff --git a/remote.c b/remote.c
index 9e4f2b8..75a12c0 100644
--- a/remote.c
+++ b/remote.c
@@ -2,6 +2,16 @@
#include "remote.h"
#include "refs.h"
+static struct refspec s_tag_refspec = {
+ 0,
+ 1,
+ 0,
+ "refs/tags/",
+ "refs/tags/"
+};
+
+const struct refspec *tag_refspec = &s_tag_refspec;
+
struct counted_string {
size_t len;
const char *s;
diff --git a/remote.h b/remote.h
index c2f5573..8eed87b 100644
--- a/remote.h
+++ b/remote.h
@@ -53,6 +53,8 @@ struct refspec {
char *dst;
};
+extern const struct refspec *tag_refspec;
+
struct ref *alloc_ref(unsigned namelen);
struct ref *alloc_ref_from_str(const char* str);
diff --git a/sha1_file.c b/sha1_file.c
index c317096..9679040 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -370,6 +370,18 @@ static void read_info_alternates(const char * relative_base, int depth)
munmap(map, mapsz);
}
+void add_to_alternates_file(const char *reference)
+{
+ struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
+ int fd = hold_lock_file_for_append(lock, git_path("objects/info/alternates"), 1);
+ char *alt = mkpath("%s/objects\n", reference);
+ write_or_die(fd, alt, strlen(alt));
+ if (commit_lock_file(lock))
+ die("could not close alternates file");
+ if (alt_odb_tail)
+ link_alt_odb_entries(alt, alt + strlen(alt), '\n', NULL, 0);
+}
+
void prepare_alt_odb(void)
{
const char *alt;
diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index dc9d63d..593d1a3 100755
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -23,4 +23,11 @@ test_expect_success 'clone with excess parameters' '
'
+test_expect_success 'clone checks out files' '
+
+ git clone src dst &&
+ test -f dst/file
+
+'
+
test_done
diff --git a/t/t5700-clone-reference.sh b/t/t5700-clone-reference.sh
index e5619a9..e1ca730 100755
--- a/t/t5700-clone-reference.sh
+++ b/t/t5700-clone-reference.sh
@@ -8,6 +8,8 @@ test_description='test clone --reference'
base_dir=`pwd`
+U=$base_dir/UPLOAD_LOG
+
test_expect_success 'preparing first repository' \
'test_create_repo A && cd A &&
echo first > file1 &&
@@ -50,8 +52,13 @@ diff expected current'
cd "$base_dir"
+rm -f $U
+
test_expect_success 'cloning with reference (no -l -s)' \
-'git clone --reference B "file://$(pwd)/A" D'
+'GIT_DEBUG_SEND_PACK=3 git clone --reference B "file://$(pwd)/A" D 3>$U'
+
+test_expect_success 'fetched no objects' \
+'! grep "^want" $U'
cd "$base_dir"
@@ -113,4 +120,30 @@ diff expected current'
cd "$base_dir"
+test_expect_success 'preparing alternate repository #1' \
+'test_create_repo F && cd F &&
+echo first > file1 &&
+git add file1 &&
+git commit -m initial'
+
+cd "$base_dir"
+
+test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' \
+'git clone F G && cd F &&
+echo second > file2 &&
+git add file2 &&
+git commit -m addition'
+
+cd "$base_dir"
+
+test_expect_success 'cloning alternate repo #1, using #2 as reference' \
+'git clone --reference G F H'
+
+cd "$base_dir"
+
+test_expect_success 'cloning with reference being subset of source (-l -s)' \
+'git clone -l -s --reference A B E'
+
+cd "$base_dir"
+
test_done
diff --git a/transport.c b/transport.c
index 1bc16f2..3ff8519 100644
--- a/transport.c
+++ b/transport.c
@@ -203,7 +203,7 @@ static struct ref *get_refs_via_rsync(struct transport *transport)
}
static int fetch_objs_via_rsync(struct transport *transport,
- int nr_objs, struct ref **to_fetch)
+ int nr_objs, const struct ref **to_fetch)
{
struct strbuf buf = STRBUF_INIT;
struct child_process rsync;
@@ -350,7 +350,7 @@ static int rsync_transport_push(struct transport *transport,
#ifndef NO_CURL /* http fetch is the only user */
static int fetch_objs_via_walker(struct transport *transport,
- int nr_objs, struct ref **to_fetch)
+ int nr_objs, const struct ref **to_fetch)
{
char *dest = xstrdup(transport->url);
struct walker *walker = transport->data;
@@ -517,7 +517,7 @@ static struct ref *get_refs_via_curl(struct transport *transport)
}
static int fetch_objs_via_curl(struct transport *transport,
- int nr_objs, struct ref **to_fetch)
+ int nr_objs, const struct ref **to_fetch)
{
if (!transport->data)
transport->data = get_http_walker(transport->url,
@@ -554,7 +554,7 @@ static struct ref *get_refs_from_bundle(struct transport *transport)
}
static int fetch_refs_from_bundle(struct transport *transport,
- int nr_heads, struct ref **to_fetch)
+ int nr_heads, const struct ref **to_fetch)
{
struct bundle_transport_data *data = transport->data;
return unbundle(&data->header, data->fd);
@@ -628,7 +628,7 @@ static struct ref *get_refs_via_connect(struct transport *transport)
}
static int fetch_refs_via_pack(struct transport *transport,
- int nr_heads, struct ref **to_fetch)
+ int nr_heads, const struct ref **to_fetch)
{
struct git_transport_data *data = transport->data;
char **heads = xmalloc(nr_heads * sizeof(*heads));
@@ -796,12 +796,12 @@ const struct ref *transport_get_remote_refs(struct transport *transport)
return transport->remote_refs;
}
-int transport_fetch_refs(struct transport *transport, struct ref *refs)
+int transport_fetch_refs(struct transport *transport, const struct ref *refs)
{
int rc;
int nr_heads = 0, nr_alloc = 0;
- struct ref **heads = NULL;
- struct ref *rm;
+ const struct ref **heads = NULL;
+ const struct ref *rm;
for (rm = refs; rm; rm = rm->next) {
if (rm->peer_ref &&
diff --git a/transport.h b/transport.h
index 8abfc0a..d0b5205 100644
--- a/transport.h
+++ b/transport.h
@@ -19,7 +19,7 @@ struct transport {
const char *value);
struct ref *(*get_refs_list)(struct transport *transport);
- int (*fetch)(struct transport *transport, int refs_nr, struct ref **refs);
+ int (*fetch)(struct transport *transport, int refs_nr, const struct ref **refs);
int (*push)(struct transport *connection, int refspec_nr, const char **refspec, int flags);
int (*disconnect)(struct transport *connection);
@@ -68,7 +68,7 @@ int transport_push(struct transport *connection,
const struct ref *transport_get_remote_refs(struct transport *transport);
-int transport_fetch_refs(struct transport *transport, struct ref *refs);
+int transport_fetch_refs(struct transport *transport, const struct ref *refs);
void transport_unlock_pack(struct transport *transport);
int transport_disconnect(struct transport *transport);