From: Junio C Hamano Date: Tue, 23 Jan 2018 21:16:37 +0000 (-0800) Subject: Merge branch 'jk/abort-clone-with-existing-dest' X-Git-Tag: v2.17.0-rc0~148 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/addd37cd64e109eb0224e522869962519224cc78?ds=inline;hp=-c Merge branch 'jk/abort-clone-with-existing-dest' "git clone $there $here" is allowed even when here directory exists as long as it is an empty directory, but the command incorrectly removed it upon a failure of the operation. * jk/abort-clone-with-existing-dest: clone: do not clean up directories we didn't create clone: factor out dir_exists() helper t5600: modernize style t5600: fix outdated comment about unborn HEAD --- addd37cd64e109eb0224e522869962519224cc78 diff --combined builtin/clone.c index 2da71db107,d9b3d1a164..284651797e --- a/builtin/clone.c +++ b/builtin/clone.c @@@ -452,8 -452,7 +452,8 @@@ static void clone_local(const char *src { if (option_shared) { struct strbuf alt = STRBUF_INIT; - strbuf_addf(&alt, "%s/objects", src_repo); + get_common_dir(&alt, src_repo); + strbuf_addstr(&alt, "/objects"); add_to_alternates_file(alt.buf); strbuf_release(&alt); } else { @@@ -473,7 -472,9 +473,9 @@@ } static const char *junk_work_tree; + static int junk_work_tree_flags; static const char *junk_git_dir; + static int junk_git_dir_flags; static enum { JUNK_LEAVE_NONE, JUNK_LEAVE_REPO, @@@ -502,12 -503,12 +504,12 @@@ static void remove_junk(void if (junk_git_dir) { strbuf_addstr(&sb, junk_git_dir); - remove_dir_recursively(&sb, 0); + remove_dir_recursively(&sb, junk_git_dir_flags); strbuf_reset(&sb); } if (junk_work_tree) { strbuf_addstr(&sb, junk_work_tree); - remove_dir_recursively(&sb, 0); + remove_dir_recursively(&sb, junk_work_tree_flags); } strbuf_release(&sb); } @@@ -589,7 -590,7 +591,7 @@@ static void write_remote_refs(const str for (r = local_refs; r; r = r->next) { if (!r->peer_ref) continue; - if (ref_transaction_create(t, r->peer_ref->name, r->old_oid.hash, + if (ref_transaction_create(t, r->peer_ref->name, &r->old_oid, 0, NULL, &err)) die("%s", err.buf); } @@@ -611,12 -612,12 +613,12 @@@ static void write_followtags(const stru continue; if (!has_object_file(&ref->old_oid)) continue; - update_ref(msg, ref->name, ref->old_oid.hash, - NULL, 0, UPDATE_REFS_DIE_ON_ERR); + update_ref(msg, ref->name, &ref->old_oid, NULL, 0, + UPDATE_REFS_DIE_ON_ERR); } } -static int iterate_ref_map(void *cb_data, unsigned char sha1[20]) +static int iterate_ref_map(void *cb_data, struct object_id *oid) { struct ref **rm = cb_data; struct ref *ref = *rm; @@@ -631,7 -632,7 +633,7 @@@ if (!ref) return -1; - hashcpy(sha1, ref->old_oid.hash); + oidcpy(oid, &ref->old_oid); *rm = ref->next; return 0; } @@@ -683,23 -684,23 +685,23 @@@ static void update_head(const struct re if (create_symref("HEAD", our->name, NULL) < 0) die(_("unable to update HEAD")); if (!option_bare) { - update_ref(msg, "HEAD", our->old_oid.hash, NULL, 0, + update_ref(msg, "HEAD", &our->old_oid, NULL, 0, UPDATE_REFS_DIE_ON_ERR); install_branch_config(0, head, option_origin, our->name); } } else if (our) { struct commit *c = lookup_commit_reference(&our->old_oid); /* --branch specifies a non-branch (i.e. tags), detach HEAD */ - update_ref(msg, "HEAD", c->object.oid.hash, - NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); + update_ref(msg, "HEAD", &c->object.oid, NULL, REF_NO_DEREF, + UPDATE_REFS_DIE_ON_ERR); } else if (remote) { /* * We know remote HEAD points to a non-branch, or * HEAD points to a branch but we don't know which one. * Detach HEAD in all these cases. */ - update_ref(msg, "HEAD", remote->old_oid.hash, - NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); + update_ref(msg, "HEAD", &remote->old_oid, NULL, REF_NO_DEREF, + UPDATE_REFS_DIE_ON_ERR); } } @@@ -707,7 -708,7 +709,7 @@@ static int checkout(int submodule_progr { struct object_id oid; char *head; - struct lock_file *lock_file; + struct lock_file lock_file = LOCK_INIT; struct unpack_trees_options opts; struct tree *tree; struct tree_desc t; @@@ -716,7 -717,7 +718,7 @@@ if (option_no_checkout) return 0; - head = resolve_refdup("HEAD", RESOLVE_REF_READING, oid.hash, NULL); + head = resolve_refdup("HEAD", RESOLVE_REF_READING, &oid, NULL); if (!head) { warning(_("remote HEAD refers to nonexistent ref, " "unable to checkout.\n")); @@@ -734,7 -735,8 +736,7 @@@ /* We need to be in the new work tree for the checkout */ setup_work_tree(); - lock_file = xcalloc(1, sizeof(struct lock_file)); - hold_locked_index(lock_file, LOCK_DIE_ON_ERROR); + hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); memset(&opts, 0, sizeof opts); opts.update = 1; @@@ -750,7 -752,7 +752,7 @@@ if (unpack_trees(1, &t, &opts) < 0) die(_("unable to checkout working tree")); - if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) + 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), @@@ -863,10 -865,15 +865,15 @@@ static void dissociate_from_references( free(alternates); } + static int dir_exists(const char *path) + { + struct stat sb; + return !stat(path, &sb); + } + int cmd_clone(int argc, const char **argv, const char *prefix) { int is_bundle = 0, is_local; - struct stat buf; const char *repo_name, *repo, *work_tree, *git_dir; char *path, *dir; int dest_exists; @@@ -938,7 -945,7 +945,7 @@@ dir = guess_dir_name(repo_name, is_bundle, option_bare); strip_trailing_slashes(dir); - dest_exists = !stat(dir, &buf); + dest_exists = dir_exists(dir); if (dest_exists && !is_empty_dir(dir)) die(_("destination path '%s' already exists and is not " "an empty directory."), dir); @@@ -949,7 -956,7 +956,7 @@@ work_tree = NULL; else { work_tree = getenv("GIT_WORK_TREE"); - if (work_tree && !stat(work_tree, &buf)) + if (work_tree && dir_exists(work_tree)) die(_("working tree '%s' already exists."), work_tree); } @@@ -967,14 -974,24 +974,24 @@@ if (safe_create_leading_directories_const(work_tree) < 0) die_errno(_("could not create leading directories of '%s'"), work_tree); - if (!dest_exists && mkdir(work_tree, 0777)) + if (dest_exists) + junk_work_tree_flags |= REMOVE_DIR_KEEP_TOPLEVEL; + else if (mkdir(work_tree, 0777)) die_errno(_("could not create work tree dir '%s'"), work_tree); junk_work_tree = work_tree; set_git_work_tree(work_tree); } - junk_git_dir = real_git_dir ? real_git_dir : git_dir; + if (real_git_dir) { + if (dir_exists(real_git_dir)) + junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL; + junk_git_dir = real_git_dir; + } else { + if (dest_exists) + junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL; + junk_git_dir = git_dir; + } if (safe_create_leading_directories_const(git_dir) < 0) die(_("could not create leading directories of '%s'"), git_dir); @@@ -1083,6 -1100,9 +1100,6 @@@ warning(_("--local is ignored")); transport->cloning = 1; - if (!transport->get_refs_list || (!is_local && !transport->fetch)) - die(_("Don't know how to clone %s"), transport->url); - transport_set_option(transport, TRANS_OPT_KEEP, "yes"); if (option_depth)