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-rw-r--r--builtin-clone.c553
1 files changed, 0 insertions, 553 deletions
diff --git a/builtin-clone.c b/builtin-clone.c
deleted file mode 100644
index 7190952071..0000000000
--- a/builtin-clone.c
+++ /dev/null
@@ -1,553 +0,0 @@
-/*
- * 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_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)
-{
- 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, NULL);
-
- 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]);
-
- 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;
-
- 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;
-}