diff options
Diffstat (limited to 'third_party/git/builtin/clone.c')
| -rw-r--r-- | third_party/git/builtin/clone.c | 157 |
1 files changed, 106 insertions, 51 deletions
diff --git a/third_party/git/builtin/clone.c b/third_party/git/builtin/clone.c index f665b28ccccf..391aa41075ee 100644 --- a/third_party/git/builtin/clone.c +++ b/third_party/git/builtin/clone.c @@ -32,7 +32,6 @@ #include "connected.h" #include "packfile.h" #include "list-objects-filter-options.h" -#include "object-store.h" /* * Overall FIXMEs: @@ -60,6 +59,7 @@ static const char *real_git_dir; static char *option_upload_pack = "git-upload-pack"; static int option_verbosity; static int option_progress = -1; +static int option_sparse_checkout; static enum transport_family family; static struct string_list option_config = STRING_LIST_INIT_NODUP; static struct string_list option_required_reference = STRING_LIST_INIT_NODUP; @@ -102,10 +102,10 @@ static struct option builtin_clone_options[] = { N_("don't use local hardlinks, always copy")), OPT_BOOL('s', "shared", &option_shared, N_("setup as shared repository")), - OPT_ALIAS(0, "recursive", "recurse-submodules"), { OPTION_CALLBACK, 0, "recurse-submodules", &option_recurse_submodules, N_("pathspec"), N_("initialize submodules in the clone"), PARSE_OPT_OPTARG, recurse_submodules_cb, (intptr_t)"." }, + OPT_ALIAS(0, "recursive", "recurse-submodules"), OPT_INTEGER('j', "jobs", &max_jobs, N_("number of submodules cloned in parallel")), OPT_STRING(0, "template", &option_template, N_("template-directory"), @@ -147,6 +147,8 @@ static struct option builtin_clone_options[] = { OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options), OPT_BOOL(0, "remote-submodules", &option_remote_submodules, N_("any cloned submodules will use their remote-tracking branch")), + OPT_BOOL(0, "sparse", &option_sparse_checkout, + N_("initialize sparse-checkout file to include only files at root")), OPT_END() }; @@ -418,6 +420,7 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest, struct dir_iterator *iter; int iter_status; unsigned int flags; + struct strbuf realpath = STRBUF_INIT; mkdir_if_missing(dest->buf, 0777); @@ -452,7 +455,8 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest, if (unlink(dest->buf) && errno != ENOENT) die_errno(_("failed to unlink '%s'"), dest->buf); if (!option_no_hardlinks) { - if (!link(real_path(src->buf), dest->buf)) + strbuf_realpath(&realpath, src->buf, 1); + if (!link(realpath.buf, dest->buf)) continue; if (option_local > 0) die_errno(_("failed to create link '%s'"), dest->buf); @@ -466,6 +470,8 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest, strbuf_setlen(src, src_len); die(_("failed to iterate over '%s'"), src->buf); } + + strbuf_release(&realpath); } static void clone_local(const char *src_repo, const char *dest_repo) @@ -637,7 +643,9 @@ static void write_followtags(const struct ref *refs, const char *msg) continue; if (ends_with(ref->name, "^{}")) continue; - if (!has_object_file(&ref->old_oid)) + if (!has_object_file_with_flags(&ref->old_oid, + OBJECT_INFO_QUICK | + OBJECT_INFO_SKIP_FETCH_OBJECT)) continue; update_ref(msg, ref->name, &ref->old_oid, NULL, 0, UPDATE_REFS_DIE_ON_ERR); @@ -670,8 +678,7 @@ static void update_remote_refs(const struct ref *refs, const char *branch_top, const char *msg, struct transport *transport, - int check_connectivity, - int check_refs_only) + int check_connectivity) { const struct ref *rm = mapped_refs; @@ -680,7 +687,6 @@ static void update_remote_refs(const struct ref *refs, opt.transport = transport; opt.progress = transport->progress; - opt.check_refs_only = !!check_refs_only; if (check_connected(iterate_ref_map, &rm, &opt)) die(_("remote did not send all necessary objects")); @@ -734,6 +740,27 @@ static void update_head(const struct ref *our, const struct ref *remote, } } +static int git_sparse_checkout_init(const char *repo) +{ + struct strvec argv = STRVEC_INIT; + int result = 0; + strvec_pushl(&argv, "-C", repo, "sparse-checkout", "init", NULL); + + /* + * We must apply the setting in the current process + * for the later checkout to use the sparse-checkout file. + */ + core_apply_sparse_checkout = 1; + + if (run_command_v_opt(argv.v, RUN_GIT_CMD)) { + error(_("failed to initialize sparse-checkout")); + result = 1; + } + + strvec_clear(&argv); + return result; +} + static int checkout(int submodule_progress) { struct object_id oid; @@ -756,11 +783,11 @@ static int checkout(int submodule_progress) if (!strcmp(head, "HEAD")) { if (advice_detached_head) detach_advice(oid_to_hex(&oid)); + FREE_AND_NULL(head); } else { if (!starts_with(head, "refs/heads/")) die(_("HEAD not found below refs/heads!")); } - free(head); /* We need to be in the new work tree for the checkout */ setup_work_tree(); @@ -775,6 +802,7 @@ static int checkout(int submodule_progress) opts.verbose_update = (option_verbosity >= 0); opts.src_index = &the_index; opts.dst_index = &the_index; + init_checkout_metadata(&opts.meta, head, &oid, NULL); tree = parse_tree_indirect(&oid); parse_tree(tree); @@ -782,35 +810,42 @@ static int checkout(int submodule_progress) if (unpack_trees(1, &t, &opts) < 0) die(_("unable to checkout working tree")); + free(head); + if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die(_("unable to write new index file")); - err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1), + err |= run_hook_le(NULL, "post-checkout", oid_to_hex(&null_oid), oid_to_hex(&oid), "1", NULL); if (!err && (option_recurse_submodules.nr > 0)) { - struct argv_array args = ARGV_ARRAY_INIT; - argv_array_pushl(&args, "submodule", "update", "--init", "--recursive", NULL); + struct strvec args = STRVEC_INIT; + strvec_pushl(&args, "submodule", "update", "--require-init", "--recursive", NULL); if (option_shallow_submodules == 1) - argv_array_push(&args, "--depth=1"); + strvec_push(&args, "--depth=1"); if (max_jobs != -1) - argv_array_pushf(&args, "--jobs=%d", max_jobs); + strvec_pushf(&args, "--jobs=%d", max_jobs); if (submodule_progress) - argv_array_push(&args, "--progress"); + strvec_push(&args, "--progress"); if (option_verbosity < 0) - argv_array_push(&args, "--quiet"); + strvec_push(&args, "--quiet"); if (option_remote_submodules) { - argv_array_push(&args, "--remote"); - argv_array_push(&args, "--no-fetch"); + strvec_push(&args, "--remote"); + strvec_push(&args, "--no-fetch"); } - err = run_command_v_opt(args.argv, RUN_GIT_CMD); - argv_array_clear(&args); + if (option_single_branch >= 0) + strvec_push(&args, option_single_branch ? + "--single-branch" : + "--no-single-branch"); + + err = run_command_v_opt(args.v, RUN_GIT_CMD); + strvec_clear(&args); } return err; @@ -900,7 +935,7 @@ static void dissociate_from_references(void) free(alternates); } -static int dir_exists(const char *path) +static int path_exists(const char *path) { struct stat sb; return !stat(path, &sb); @@ -910,15 +945,14 @@ int cmd_clone(int argc, const char **argv, const char *prefix) { int is_bundle = 0, is_local; const char *repo_name, *repo, *work_tree, *git_dir; - char *path, *dir; - int dest_exists; + char *path, *dir, *display_repo = NULL; + int dest_exists, real_dest_exists = 0; const struct ref *refs, *remote_head; const struct ref *remote_head_points_at; const struct ref *our_head_points_at; struct ref *mapped_refs; const struct ref *ref; struct strbuf key = STRBUF_INIT; - struct strbuf default_refspec = STRBUF_INIT; struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT; struct transport *transport = NULL; const char *src_ref_prefix = "refs/heads/"; @@ -926,9 +960,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) int err = 0, complete_refs_before_fetch = 1; int submodule_progress; - struct argv_array ref_prefixes = ARGV_ARRAY_INIT; - - fetch_if_missing = 0; + struct strvec ref_prefixes = STRVEC_INIT; packet_trace_identity("clone"); argc = parse_options(argc, argv, prefix, builtin_clone_options, @@ -967,10 +999,11 @@ int cmd_clone(int argc, const char **argv, const char *prefix) path = get_repo_path(repo_name, &is_bundle); if (path) repo = absolute_pathdup(repo_name); - else if (!strchr(repo_name, ':')) - die(_("repository '%s' does not exist"), repo_name); - else + else if (strchr(repo_name, ':')) { repo = repo_name; + display_repo = transport_anonymize_url(repo); + } else + die(_("repository '%s' does not exist"), repo_name); /* no need to be strict, transport_set_option() will validate it again */ if (option_depth && atoi(option_depth) < 1) @@ -982,18 +1015,28 @@ int cmd_clone(int argc, const char **argv, const char *prefix) dir = guess_dir_name(repo_name, is_bundle, option_bare); strip_trailing_slashes(dir); - dest_exists = dir_exists(dir); + dest_exists = path_exists(dir); 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 (real_git_dir) { + real_dest_exists = path_exists(real_git_dir); + if (real_dest_exists && !is_empty_dir(real_git_dir)) + die(_("repository path '%s' already exists and is not " + "an empty directory."), real_git_dir); + } + + + strbuf_addf(&reflog_msg, "clone: from %s", + display_repo ? display_repo : repo); + free(display_repo); if (option_bare) work_tree = NULL; else { work_tree = getenv("GIT_WORK_TREE"); - if (work_tree && dir_exists(work_tree)) + if (work_tree && path_exists(work_tree)) die(_("working tree '%s' already exists."), work_tree); } @@ -1021,7 +1064,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) } if (real_git_dir) { - if (dir_exists(real_git_dir)) + if (real_dest_exists) junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL; junk_git_dir = real_git_dir; } else { @@ -1075,7 +1118,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix) } } - init_db(git_dir, real_git_dir, option_template, INIT_DB_QUIET); + init_db(git_dir, real_git_dir, option_template, GIT_HASH_UNKNOWN, NULL, + INIT_DB_QUIET); if (real_git_dir) git_dir = real_git_dir; @@ -1107,11 +1151,13 @@ int cmd_clone(int argc, const char **argv, const char *prefix) if (option_required_reference.nr || option_optional_reference.nr) setup_reference(); + if (option_sparse_checkout && git_sparse_checkout_init(dir)) + return 1; + remote = remote_get(option_origin); - strbuf_addf(&default_refspec, "+%s*:%s*", src_ref_prefix, - branch_top.buf); - refspec_append(&remote->fetch, default_refspec.buf); + refspec_appendf(&remote->fetch, "+%s*:%s*", src_ref_prefix, + branch_top.buf); transport = transport_get(remote, remote->url[0]); transport_set_verbosity(transport, option_verbosity, option_progress); @@ -1160,29 +1206,36 @@ int cmd_clone(int argc, const char **argv, const char *prefix) transport->server_options = &server_options; if (filter_options.choice) { - struct strbuf expanded_filter_spec = STRBUF_INIT; - expand_list_objects_filter_spec(&filter_options, - &expanded_filter_spec); + const char *spec = + expand_list_objects_filter_spec(&filter_options); transport_set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER, - expanded_filter_spec.buf); + spec); transport_set_option(transport, TRANS_OPT_FROM_PROMISOR, "1"); - strbuf_release(&expanded_filter_spec); } if (transport->smart_options && !deepen && !filter_options.choice) transport->smart_options->check_self_contained_and_connected = 1; - argv_array_push(&ref_prefixes, "HEAD"); + strvec_push(&ref_prefixes, "HEAD"); refspec_ref_prefixes(&remote->fetch, &ref_prefixes); if (option_branch) expand_ref_prefix(&ref_prefixes, option_branch); if (!option_no_tags) - argv_array_push(&ref_prefixes, "refs/tags/"); + strvec_push(&ref_prefixes, "refs/tags/"); refs = transport_get_remote_refs(transport, &ref_prefixes); if (refs) { + int hash_algo = hash_algo_by_ptr(transport_get_hash_algo(transport)); + + /* + * Now that we know what algorithm the remote side is using, + * let's set ours to the same thing. + */ + initialize_repository_version(hash_algo, 1); + repo_set_hash_algo(the_repository, hash_algo); + mapped_refs = wanted_peer_refs(refs, &remote->fetch); /* * transport_get_remote_refs() may return refs with null sha-1 @@ -1229,9 +1282,13 @@ int cmd_clone(int argc, const char **argv, const char *prefix) remote_head_points_at = NULL; remote_head = NULL; option_no_checkout = 1; - if (!option_bare) - install_branch_config(0, "master", option_origin, - "refs/heads/master"); + if (!option_bare) { + const char *branch = git_default_branch_name(); + char *ref = xstrfmt("refs/heads/%s", branch); + + install_branch_config(0, branch, option_origin, ref); + free(ref); + } } write_refspec_config(src_ref_prefix, our_head_points_at, @@ -1247,7 +1304,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) update_remote_refs(refs, mapped_refs, remote_head_points_at, branch_top.buf, reflog_msg.buf, transport, - !is_local, filter_options.choice); + !is_local); update_head(our_head_points_at, remote_head, reflog_msg.buf); @@ -1268,15 +1325,13 @@ int cmd_clone(int argc, const char **argv, const char *prefix) } junk_mode = JUNK_LEAVE_REPO; - fetch_if_missing = 1; err = checkout(submodule_progress); strbuf_release(&reflog_msg); strbuf_release(&branch_top); strbuf_release(&key); - strbuf_release(&default_refspec); junk_mode = JUNK_LEAVE_ALL; - argv_array_clear(&ref_prefixes); + strvec_clear(&ref_prefixes); return err; } |