diff options
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | builtin-clone.c | 550 | ||||
| -rw-r--r-- | builtin-fetch.c | 10 | ||||
| -rw-r--r-- | builtin-init-db.c | 199 | ||||
| -rw-r--r-- | builtin.h | 1 | ||||
| -rw-r--r-- | cache.h | 7 | ||||
| -rwxr-xr-x | contrib/examples/git-clone.sh (renamed from git-clone.sh) | 0 | ||||
| -rw-r--r-- | environment.c | 24 | ||||
| -rw-r--r-- | git.c | 1 | ||||
| -rw-r--r-- | lockfile.c | 28 | ||||
| -rw-r--r-- | refs.c | 18 | ||||
| -rw-r--r-- | refs.h | 9 | ||||
| -rw-r--r-- | remote.c | 10 | ||||
| -rw-r--r-- | remote.h | 2 | ||||
| -rw-r--r-- | sha1_file.c | 12 | ||||
| -rwxr-xr-x | t/t5601-clone.sh | 7 | ||||
| -rwxr-xr-x | t/t5700-clone-reference.sh | 35 | ||||
| -rw-r--r-- | transport.c | 16 | ||||
| -rw-r--r-- | transport.h | 4 |
19 files changed, 816 insertions, 119 deletions
@@ -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 000000000..2a3f6732f --- /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 f6584ecea..bfe7711aa 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 b06131727..3968c9911 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); } @@ -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); @@ -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 547228e13..547228e13 100755 --- a/git-clone.sh +++ b/contrib/examples/git-clone.sh diff --git a/environment.c b/environment.c index 4fcb47124..73feb2d03 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; } @@ -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 b0118d059..cfc733534 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; @@ -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); @@ -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. **/ @@ -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; @@ -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 c3170961c..9679040d6 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 dc9d63dbf..593d1a387 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 e5619a9f5..e1ca7303a 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 1bc16f2b6..3ff851935 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 8abfc0ae6..d0b52053f 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); |