This version is still a mess, but it passes all of the tests. I'm somewhat unconvinced by the test coverage for clone, however; the last failure I found was actually for which heads get created in a bare repository, and it was only failing when there was an extra one in a non-bare clone in a test for something entirely different. Thanks to Johannes Schindelin for various comments and improvements, including supporting cloning full bundles. --- Makefile | 2 +- builtin-clone.c | 546 +++++++++++++++++++++++++++++++++++++++++ builtin.h | 1 + contrib/examples/git-clone.sh | 522 +++++++++++++++++++++++++++++++++++++++ git-clone.sh | 522 --------------------------------------- git.c | 1 + 6 files changed, 1071 insertions(+), 523 deletions(-) create mode 100644 builtin-clone.c create mode 100755 contrib/examples/git-clone.sh delete mode 100755 git-clone.sh diff --git a/Makefile b/Makefile index 78b7738..be9113f 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 @@ -479,6 +478,7 @@ 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..17d10b1 --- /dev/null +++ b/builtin-clone.c @@ -0,0 +1,546 @@ +/* + * Builtin "git clone" + * + * Copyright (c) 2007 Kristian Høgsberg <krh@xxxxxxxxxx>, + * 2008 Daniel Barkalow <barkalow@xxxxxxxxxxxx> + * 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 (copy_file(dest, src, 0666)) + die("failed to copy file to %s\n", dest); + } else { + if (link(src, dest)) + die("failed to create link %s\n", dest); + } + } +} + +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) + option_no_checkout = 1; + else + 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.verbose_update = !option_quiet; + 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.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/contrib/examples/git-clone.sh b/contrib/examples/git-clone.sh new file mode 100755 index 0000000..2636159 --- /dev/null +++ b/contrib/examples/git-clone.sh @@ -0,0 +1,522 @@ +#!/bin/sh +# +# Copyright (c) 2005, Linus Torvalds +# Copyright (c) 2005, Junio C Hamano +# +# Clone a repository into a different directory that does not yet exist. + +# See git-sh-setup why. +unset CDPATH + +OPTIONS_SPEC="\ +git-clone [options] [--] <repo> [<dir>] +-- +n,no-checkout don't create a checkout +bare create a bare repository +naked create a bare repository +l,local to clone from a local repository +no-hardlinks don't use local hardlinks, always copy +s,shared setup as a shared repository +template= path to the template directory +q,quiet be quiet +reference= reference repository +o,origin= use <name> instead of 'origin' to track upstream +u,upload-pack= path to git-upload-pack on the remote +depth= create a shallow clone of that depth + +use-separate-remote compatibility, do not use +no-separate-remote compatibility, do not use" + +die() { + echo >&2 "$@" + exit 1 +} + +usage() { + exec "$0" -h +} + +eval "$(echo "$OPTIONS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?)" + +get_repo_base() { + ( + cd "`/bin/pwd`" && + cd "$1" || cd "$1.git" && + { + cd .git + pwd + } + ) 2>/dev/null +} + +if [ -n "$GIT_SSL_NO_VERIFY" -o \ + "`git config --bool http.sslVerify`" = false ]; then + curl_extra_args="-k" +fi + +http_fetch () { + # $1 = Remote, $2 = Local + curl -nsfL $curl_extra_args "$1" >"$2" + curl_exit_status=$? + case $curl_exit_status in + 126|127) exit ;; + *) return $curl_exit_status ;; + esac +} + +clone_dumb_http () { + # $1 - remote, $2 - local + cd "$2" && + clone_tmp="$GIT_DIR/clone-tmp" && + mkdir -p "$clone_tmp" || exit 1 + if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \ + "`git config --bool http.noEPSV`" = true ]; then + curl_extra_args="${curl_extra_args} --disable-epsv" + fi + http_fetch "$1/info/refs" "$clone_tmp/refs" || + die "Cannot get remote repository information. +Perhaps git-update-server-info needs to be run there?" + test "z$quiet" = z && v=-v || v= + while read sha1 refname + do + name=`expr "z$refname" : 'zrefs/\(.*\)'` && + case "$name" in + *^*) continue;; + esac + case "$bare,$name" in + yes,* | ,heads/* | ,tags/*) ;; + *) continue ;; + esac + if test -n "$use_separate_remote" && + branch_name=`expr "z$name" : 'zheads/\(.*\)'` + then + tname="remotes/$origin/$branch_name" + else + tname=$name + fi + git-http-fetch $v -a -w "$tname" "$sha1" "$1" || exit 1 + done <"$clone_tmp/refs" + rm -fr "$clone_tmp" + http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" || + rm -f "$GIT_DIR/REMOTE_HEAD" + if test -f "$GIT_DIR/REMOTE_HEAD"; then + head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` + case "$head_sha1" in + 'ref: refs/'*) + ;; + *) + git-http-fetch $v -a "$head_sha1" "$1" || + rm -f "$GIT_DIR/REMOTE_HEAD" + ;; + esac + fi +} + +quiet= +local=no +use_local_hardlink=yes +local_shared=no +unset template +no_checkout= +upload_pack= +bare= +reference= +origin= +origin_override= +use_separate_remote=t +depth= +no_progress= +local_explicitly_asked_for= +test -t 1 || no_progress=--no-progress + +while test $# != 0 +do + case "$1" in + -n|--no-checkout) + no_checkout=yes ;; + --naked|--bare) + bare=yes ;; + -l|--local) + local_explicitly_asked_for=yes + use_local_hardlink=yes + ;; + --no-hardlinks) + use_local_hardlink=no ;; + -s|--shared) + local_shared=yes ;; + --template) + shift; template="--template=$1" ;; + -q|--quiet) + quiet=-q ;; + --use-separate-remote|--no-separate-remote) + die "clones are always made with separate-remote layout" ;; + --reference) + shift; reference="$1" ;; + -o|--origin) + shift; + case "$1" in + '') + usage ;; + */*) + die "'$1' is not suitable for an origin name" + esac + git check-ref-format "heads/$1" || + die "'$1' is not suitable for a branch name" + test -z "$origin_override" || + die "Do not give more than one --origin options." + origin_override=yes + origin="$1" + ;; + -u|--upload-pack) + shift + upload_pack="--upload-pack=$1" ;; + --depth) + shift + depth="--depth=$1" ;; + --) + shift + break ;; + *) + usage ;; + esac + shift +done + +repo="$1" +test -n "$repo" || + die 'you must specify a repository to clone.' + +# --bare implies --no-checkout and --no-separate-remote +if test yes = "$bare" +then + if test yes = "$origin_override" + then + die '--bare and --origin $origin options are incompatible.' + fi + no_checkout=yes + use_separate_remote= +fi + +if test -z "$origin" +then + origin=origin +fi + +# Turn the source into an absolute path if +# it is local +if base=$(get_repo_base "$repo"); then + repo="$base" + if test -z "$depth" + then + local=yes + fi +elif test -f "$repo" +then + case "$repo" in /*) ;; *) repo="$PWD/$repo" ;; esac +fi + +# Decide the directory name of the new repository +if test -n "$2" +then + dir="$2" +else + # Derive one from the repository name + # Try using "humanish" part of source repo if user didn't specify one + if test -f "$repo" + then + # Cloning from a bundle + dir=$(echo "$repo" | sed -e 's|/*\.bundle$||' -e 's|.*/||g') + else + dir=$(echo "$repo" | + sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g') + fi +fi + +[ -e "$dir" ] && die "destination directory '$dir' already exists." +[ yes = "$bare" ] && unset GIT_WORK_TREE +[ -n "$GIT_WORK_TREE" ] && [ -e "$GIT_WORK_TREE" ] && +die "working tree '$GIT_WORK_TREE' already exists." +D= +W= +cleanup() { + err=$? + test -z "$D" && rm -rf "$dir" + test -z "$W" && test -n "$GIT_WORK_TREE" && rm -rf "$GIT_WORK_TREE" + cd .. + test -n "$D" && rm -rf "$D" + test -n "$W" && rm -rf "$W" + exit $err +} +trap cleanup 0 +mkdir -p "$dir" && D=$(cd "$dir" && pwd) || usage +test -n "$GIT_WORK_TREE" && mkdir -p "$GIT_WORK_TREE" && +W=$(cd "$GIT_WORK_TREE" && pwd) && GIT_WORK_TREE="$W" && export GIT_WORK_TREE +if test yes = "$bare" || test -n "$GIT_WORK_TREE"; then + GIT_DIR="$D" +else + GIT_DIR="$D/.git" +fi && +export GIT_DIR && +GIT_CONFIG="$GIT_DIR/config" git-init $quiet ${template+"$template"} || usage + +if test -n "$bare" +then + GIT_CONFIG="$GIT_DIR/config" git config core.bare true +fi + +if test -n "$reference" +then + ref_git= + if test -d "$reference" + then + if test -d "$reference/.git/objects" + then + ref_git="$reference/.git" + elif test -d "$reference/objects" + then + ref_git="$reference" + fi + fi + if test -n "$ref_git" + then + ref_git=$(cd "$ref_git" && pwd) + echo "$ref_git/objects" >"$GIT_DIR/objects/info/alternates" + ( + GIT_DIR="$ref_git" git for-each-ref \ + --format='%(objectname) %(*objectname)' + ) | + while read a b + do + test -z "$a" || + git update-ref "refs/reference-tmp/$a" "$a" + test -z "$b" || + git update-ref "refs/reference-tmp/$b" "$b" + done + else + die "reference repository '$reference' is not a local directory." + fi +fi + +rm -f "$GIT_DIR/CLONE_HEAD" + +# We do local magic only when the user tells us to. +case "$local" in +yes) + ( cd "$repo/objects" ) || + die "cannot chdir to local '$repo/objects'." + + if test "$local_shared" = yes + then + mkdir -p "$GIT_DIR/objects/info" + echo "$repo/objects" >>"$GIT_DIR/objects/info/alternates" + else + cpio_quiet_flag="" + cpio --help 2>&1 | grep -- --quiet >/dev/null && \ + cpio_quiet_flag=--quiet + l= && + if test "$use_local_hardlink" = yes + then + # See if we can hardlink and drop "l" if not. + sample_file=$(cd "$repo" && \ + find objects -type f -print | sed -e 1q) + # objects directory should not be empty because + # we are cloning! + test -f "$repo/$sample_file" || + die "fatal: cannot clone empty repository" + if ln "$repo/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null + then + rm -f "$GIT_DIR/objects/sample" + l=l + elif test -n "$local_explicitly_asked_for" + then + echo >&2 "Warning: -l asked but cannot hardlink to $repo" + fi + fi && + cd "$repo" && + find objects -depth -print | cpio $cpio_quiet_flag -pumd$l "$GIT_DIR/" || \ + exit 1 + fi + git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1 + ;; +*) + case "$repo" in + rsync://*) + case "$depth" in + "") ;; + *) die "shallow over rsync not supported" ;; + esac + rsync $quiet -av --ignore-existing \ + --exclude info "$repo/objects/" "$GIT_DIR/objects/" || + exit + # Look at objects/info/alternates for rsync -- http will + # support it natively and git native ones will do it on the + # remote end. Not having that file is not a crime. + rsync -q "$repo/objects/info/alternates" \ + "$GIT_DIR/TMP_ALT" 2>/dev/null || + rm -f "$GIT_DIR/TMP_ALT" + if test -f "$GIT_DIR/TMP_ALT" + then + ( cd "$D" && + . git-parse-remote && + resolve_alternates "$repo" <"$GIT_DIR/TMP_ALT" ) | + while read alt + do + case "$alt" in 'bad alternate: '*) die "$alt";; esac + case "$quiet" in + '') echo >&2 "Getting alternate: $alt" ;; + esac + rsync $quiet -av --ignore-existing \ + --exclude info "$alt" "$GIT_DIR/objects" || exit + done + rm -f "$GIT_DIR/TMP_ALT" + fi + git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1 + ;; + https://*|http://*|ftp://*) + case "$depth" in + "") ;; + *) die "shallow over http or ftp not supported" ;; + esac + if test -z "@@NO_CURL@@" + then + clone_dumb_http "$repo" "$D" + else + die "http transport not supported, rebuild Git with curl support" + fi + ;; + *) + if [ -f "$repo" ] ; then + git bundle unbundle "$repo" > "$GIT_DIR/CLONE_HEAD" || + die "unbundle from '$repo' failed." + else + case "$upload_pack" in + '') git-fetch-pack --all -k $quiet $depth $no_progress "$repo";; + *) git-fetch-pack --all -k \ + $quiet "$upload_pack" $depth $no_progress "$repo" ;; + esac >"$GIT_DIR/CLONE_HEAD" || + die "fetch-pack from '$repo' failed." + fi + ;; + esac + ;; +esac +test -d "$GIT_DIR/refs/reference-tmp" && rm -fr "$GIT_DIR/refs/reference-tmp" + +if test -f "$GIT_DIR/CLONE_HEAD" +then + # Read git-fetch-pack -k output and store the remote branches. + if [ -n "$use_separate_remote" ] + then + branch_top="remotes/$origin" + else + branch_top="heads" + fi + tag_top="tags" + while read sha1 name + do + case "$name" in + *'^{}') + continue ;; + HEAD) + destname="REMOTE_HEAD" ;; + refs/heads/*) + destname="refs/$branch_top/${name#refs/heads/}" ;; + refs/tags/*) + destname="refs/$tag_top/${name#refs/tags/}" ;; + *) + continue ;; + esac + git update-ref -m "clone: from $repo" "$destname" "$sha1" "" + done < "$GIT_DIR/CLONE_HEAD" +fi + +if test -n "$W"; then + cd "$W" || exit +else + cd "$D" || exit +fi + +if test -z "$bare" +then + # a non-bare repository is always in separate-remote layout + remote_top="refs/remotes/$origin" + head_sha1= + test ! -r "$GIT_DIR/REMOTE_HEAD" || head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` + case "$head_sha1" in + 'ref: refs/'*) + # Uh-oh, the remote told us (http transport done against + # new style repository with a symref HEAD). + # Ideally we should skip the guesswork but for now + # opt for minimum change. + head_sha1=`expr "z$head_sha1" : 'zref: refs/heads/\(.*\)'` + head_sha1=`cat "$GIT_DIR/$remote_top/$head_sha1"` + ;; + esac + + # The name under $remote_top the remote HEAD seems to point at. + head_points_at=$( + ( + test -f "$GIT_DIR/$remote_top/master" && echo "master" + cd "$GIT_DIR/$remote_top" && + find . -type f -print | sed -e 's/^\.\///' + ) | ( + done=f + while read name + do + test t = $done && continue + branch_tip=`cat "$GIT_DIR/$remote_top/$name"` + if test "$head_sha1" = "$branch_tip" + then + echo "$name" + done=t + fi + done + ) + ) + + # Upstream URL + git config remote."$origin".url "$repo" && + + # Set up the mappings to track the remote branches. + git config remote."$origin".fetch \ + "+refs/heads/*:$remote_top/*" '^$' && + + # Write out remote.$origin config, and update our "$head_points_at". + case "$head_points_at" in + ?*) + # Local default branch + git symbolic-ref HEAD "refs/heads/$head_points_at" && + + # Tracking branch for the primary branch at the remote. + git update-ref HEAD "$head_sha1" && + + rm -f "refs/remotes/$origin/HEAD" + git symbolic-ref "refs/remotes/$origin/HEAD" \ + "refs/remotes/$origin/$head_points_at" && + + git config branch."$head_points_at".remote "$origin" && + git config branch."$head_points_at".merge "refs/heads/$head_points_at" + ;; + '') + if test -z "$head_sha1" + then + # Source had nonexistent ref in HEAD + echo >&2 "Warning: Remote HEAD refers to nonexistent ref, unable to checkout." + no_checkout=t + else + # Source had detached HEAD pointing nowhere + git update-ref --no-deref HEAD "$head_sha1" && + rm -f "refs/remotes/$origin/HEAD" + fi + ;; + esac + + case "$no_checkout" in + '') + test "z$quiet" = z -a "z$no_progress" = z && v=-v || v= + git read-tree -m -u $v HEAD HEAD + esac +fi +rm -f "$GIT_DIR/CLONE_HEAD" "$GIT_DIR/REMOTE_HEAD" + +trap - 0 diff --git a/git-clone.sh b/git-clone.sh deleted file mode 100755 index 2636159..0000000 --- a/git-clone.sh +++ /dev/null @@ -1,522 +0,0 @@ -#!/bin/sh -# -# Copyright (c) 2005, Linus Torvalds -# Copyright (c) 2005, Junio C Hamano -# -# Clone a repository into a different directory that does not yet exist. - -# See git-sh-setup why. -unset CDPATH - -OPTIONS_SPEC="\ -git-clone [options] [--] <repo> [<dir>] --- -n,no-checkout don't create a checkout -bare create a bare repository -naked create a bare repository -l,local to clone from a local repository -no-hardlinks don't use local hardlinks, always copy -s,shared setup as a shared repository -template= path to the template directory -q,quiet be quiet -reference= reference repository -o,origin= use <name> instead of 'origin' to track upstream -u,upload-pack= path to git-upload-pack on the remote -depth= create a shallow clone of that depth - -use-separate-remote compatibility, do not use -no-separate-remote compatibility, do not use" - -die() { - echo >&2 "$@" - exit 1 -} - -usage() { - exec "$0" -h -} - -eval "$(echo "$OPTIONS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?)" - -get_repo_base() { - ( - cd "`/bin/pwd`" && - cd "$1" || cd "$1.git" && - { - cd .git - pwd - } - ) 2>/dev/null -} - -if [ -n "$GIT_SSL_NO_VERIFY" -o \ - "`git config --bool http.sslVerify`" = false ]; then - curl_extra_args="-k" -fi - -http_fetch () { - # $1 = Remote, $2 = Local - curl -nsfL $curl_extra_args "$1" >"$2" - curl_exit_status=$? - case $curl_exit_status in - 126|127) exit ;; - *) return $curl_exit_status ;; - esac -} - -clone_dumb_http () { - # $1 - remote, $2 - local - cd "$2" && - clone_tmp="$GIT_DIR/clone-tmp" && - mkdir -p "$clone_tmp" || exit 1 - if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \ - "`git config --bool http.noEPSV`" = true ]; then - curl_extra_args="${curl_extra_args} --disable-epsv" - fi - http_fetch "$1/info/refs" "$clone_tmp/refs" || - die "Cannot get remote repository information. -Perhaps git-update-server-info needs to be run there?" - test "z$quiet" = z && v=-v || v= - while read sha1 refname - do - name=`expr "z$refname" : 'zrefs/\(.*\)'` && - case "$name" in - *^*) continue;; - esac - case "$bare,$name" in - yes,* | ,heads/* | ,tags/*) ;; - *) continue ;; - esac - if test -n "$use_separate_remote" && - branch_name=`expr "z$name" : 'zheads/\(.*\)'` - then - tname="remotes/$origin/$branch_name" - else - tname=$name - fi - git-http-fetch $v -a -w "$tname" "$sha1" "$1" || exit 1 - done <"$clone_tmp/refs" - rm -fr "$clone_tmp" - http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" || - rm -f "$GIT_DIR/REMOTE_HEAD" - if test -f "$GIT_DIR/REMOTE_HEAD"; then - head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` - case "$head_sha1" in - 'ref: refs/'*) - ;; - *) - git-http-fetch $v -a "$head_sha1" "$1" || - rm -f "$GIT_DIR/REMOTE_HEAD" - ;; - esac - fi -} - -quiet= -local=no -use_local_hardlink=yes -local_shared=no -unset template -no_checkout= -upload_pack= -bare= -reference= -origin= -origin_override= -use_separate_remote=t -depth= -no_progress= -local_explicitly_asked_for= -test -t 1 || no_progress=--no-progress - -while test $# != 0 -do - case "$1" in - -n|--no-checkout) - no_checkout=yes ;; - --naked|--bare) - bare=yes ;; - -l|--local) - local_explicitly_asked_for=yes - use_local_hardlink=yes - ;; - --no-hardlinks) - use_local_hardlink=no ;; - -s|--shared) - local_shared=yes ;; - --template) - shift; template="--template=$1" ;; - -q|--quiet) - quiet=-q ;; - --use-separate-remote|--no-separate-remote) - die "clones are always made with separate-remote layout" ;; - --reference) - shift; reference="$1" ;; - -o|--origin) - shift; - case "$1" in - '') - usage ;; - */*) - die "'$1' is not suitable for an origin name" - esac - git check-ref-format "heads/$1" || - die "'$1' is not suitable for a branch name" - test -z "$origin_override" || - die "Do not give more than one --origin options." - origin_override=yes - origin="$1" - ;; - -u|--upload-pack) - shift - upload_pack="--upload-pack=$1" ;; - --depth) - shift - depth="--depth=$1" ;; - --) - shift - break ;; - *) - usage ;; - esac - shift -done - -repo="$1" -test -n "$repo" || - die 'you must specify a repository to clone.' - -# --bare implies --no-checkout and --no-separate-remote -if test yes = "$bare" -then - if test yes = "$origin_override" - then - die '--bare and --origin $origin options are incompatible.' - fi - no_checkout=yes - use_separate_remote= -fi - -if test -z "$origin" -then - origin=origin -fi - -# Turn the source into an absolute path if -# it is local -if base=$(get_repo_base "$repo"); then - repo="$base" - if test -z "$depth" - then - local=yes - fi -elif test -f "$repo" -then - case "$repo" in /*) ;; *) repo="$PWD/$repo" ;; esac -fi - -# Decide the directory name of the new repository -if test -n "$2" -then - dir="$2" -else - # Derive one from the repository name - # Try using "humanish" part of source repo if user didn't specify one - if test -f "$repo" - then - # Cloning from a bundle - dir=$(echo "$repo" | sed -e 's|/*\.bundle$||' -e 's|.*/||g') - else - dir=$(echo "$repo" | - sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g') - fi -fi - -[ -e "$dir" ] && die "destination directory '$dir' already exists." -[ yes = "$bare" ] && unset GIT_WORK_TREE -[ -n "$GIT_WORK_TREE" ] && [ -e "$GIT_WORK_TREE" ] && -die "working tree '$GIT_WORK_TREE' already exists." -D= -W= -cleanup() { - err=$? - test -z "$D" && rm -rf "$dir" - test -z "$W" && test -n "$GIT_WORK_TREE" && rm -rf "$GIT_WORK_TREE" - cd .. - test -n "$D" && rm -rf "$D" - test -n "$W" && rm -rf "$W" - exit $err -} -trap cleanup 0 -mkdir -p "$dir" && D=$(cd "$dir" && pwd) || usage -test -n "$GIT_WORK_TREE" && mkdir -p "$GIT_WORK_TREE" && -W=$(cd "$GIT_WORK_TREE" && pwd) && GIT_WORK_TREE="$W" && export GIT_WORK_TREE -if test yes = "$bare" || test -n "$GIT_WORK_TREE"; then - GIT_DIR="$D" -else - GIT_DIR="$D/.git" -fi && -export GIT_DIR && -GIT_CONFIG="$GIT_DIR/config" git-init $quiet ${template+"$template"} || usage - -if test -n "$bare" -then - GIT_CONFIG="$GIT_DIR/config" git config core.bare true -fi - -if test -n "$reference" -then - ref_git= - if test -d "$reference" - then - if test -d "$reference/.git/objects" - then - ref_git="$reference/.git" - elif test -d "$reference/objects" - then - ref_git="$reference" - fi - fi - if test -n "$ref_git" - then - ref_git=$(cd "$ref_git" && pwd) - echo "$ref_git/objects" >"$GIT_DIR/objects/info/alternates" - ( - GIT_DIR="$ref_git" git for-each-ref \ - --format='%(objectname) %(*objectname)' - ) | - while read a b - do - test -z "$a" || - git update-ref "refs/reference-tmp/$a" "$a" - test -z "$b" || - git update-ref "refs/reference-tmp/$b" "$b" - done - else - die "reference repository '$reference' is not a local directory." - fi -fi - -rm -f "$GIT_DIR/CLONE_HEAD" - -# We do local magic only when the user tells us to. -case "$local" in -yes) - ( cd "$repo/objects" ) || - die "cannot chdir to local '$repo/objects'." - - if test "$local_shared" = yes - then - mkdir -p "$GIT_DIR/objects/info" - echo "$repo/objects" >>"$GIT_DIR/objects/info/alternates" - else - cpio_quiet_flag="" - cpio --help 2>&1 | grep -- --quiet >/dev/null && \ - cpio_quiet_flag=--quiet - l= && - if test "$use_local_hardlink" = yes - then - # See if we can hardlink and drop "l" if not. - sample_file=$(cd "$repo" && \ - find objects -type f -print | sed -e 1q) - # objects directory should not be empty because - # we are cloning! - test -f "$repo/$sample_file" || - die "fatal: cannot clone empty repository" - if ln "$repo/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null - then - rm -f "$GIT_DIR/objects/sample" - l=l - elif test -n "$local_explicitly_asked_for" - then - echo >&2 "Warning: -l asked but cannot hardlink to $repo" - fi - fi && - cd "$repo" && - find objects -depth -print | cpio $cpio_quiet_flag -pumd$l "$GIT_DIR/" || \ - exit 1 - fi - git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1 - ;; -*) - case "$repo" in - rsync://*) - case "$depth" in - "") ;; - *) die "shallow over rsync not supported" ;; - esac - rsync $quiet -av --ignore-existing \ - --exclude info "$repo/objects/" "$GIT_DIR/objects/" || - exit - # Look at objects/info/alternates for rsync -- http will - # support it natively and git native ones will do it on the - # remote end. Not having that file is not a crime. - rsync -q "$repo/objects/info/alternates" \ - "$GIT_DIR/TMP_ALT" 2>/dev/null || - rm -f "$GIT_DIR/TMP_ALT" - if test -f "$GIT_DIR/TMP_ALT" - then - ( cd "$D" && - . git-parse-remote && - resolve_alternates "$repo" <"$GIT_DIR/TMP_ALT" ) | - while read alt - do - case "$alt" in 'bad alternate: '*) die "$alt";; esac - case "$quiet" in - '') echo >&2 "Getting alternate: $alt" ;; - esac - rsync $quiet -av --ignore-existing \ - --exclude info "$alt" "$GIT_DIR/objects" || exit - done - rm -f "$GIT_DIR/TMP_ALT" - fi - git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1 - ;; - https://*|http://*|ftp://*) - case "$depth" in - "") ;; - *) die "shallow over http or ftp not supported" ;; - esac - if test -z "@@NO_CURL@@" - then - clone_dumb_http "$repo" "$D" - else - die "http transport not supported, rebuild Git with curl support" - fi - ;; - *) - if [ -f "$repo" ] ; then - git bundle unbundle "$repo" > "$GIT_DIR/CLONE_HEAD" || - die "unbundle from '$repo' failed." - else - case "$upload_pack" in - '') git-fetch-pack --all -k $quiet $depth $no_progress "$repo";; - *) git-fetch-pack --all -k \ - $quiet "$upload_pack" $depth $no_progress "$repo" ;; - esac >"$GIT_DIR/CLONE_HEAD" || - die "fetch-pack from '$repo' failed." - fi - ;; - esac - ;; -esac -test -d "$GIT_DIR/refs/reference-tmp" && rm -fr "$GIT_DIR/refs/reference-tmp" - -if test -f "$GIT_DIR/CLONE_HEAD" -then - # Read git-fetch-pack -k output and store the remote branches. - if [ -n "$use_separate_remote" ] - then - branch_top="remotes/$origin" - else - branch_top="heads" - fi - tag_top="tags" - while read sha1 name - do - case "$name" in - *'^{}') - continue ;; - HEAD) - destname="REMOTE_HEAD" ;; - refs/heads/*) - destname="refs/$branch_top/${name#refs/heads/}" ;; - refs/tags/*) - destname="refs/$tag_top/${name#refs/tags/}" ;; - *) - continue ;; - esac - git update-ref -m "clone: from $repo" "$destname" "$sha1" "" - done < "$GIT_DIR/CLONE_HEAD" -fi - -if test -n "$W"; then - cd "$W" || exit -else - cd "$D" || exit -fi - -if test -z "$bare" -then - # a non-bare repository is always in separate-remote layout - remote_top="refs/remotes/$origin" - head_sha1= - test ! -r "$GIT_DIR/REMOTE_HEAD" || head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"` - case "$head_sha1" in - 'ref: refs/'*) - # Uh-oh, the remote told us (http transport done against - # new style repository with a symref HEAD). - # Ideally we should skip the guesswork but for now - # opt for minimum change. - head_sha1=`expr "z$head_sha1" : 'zref: refs/heads/\(.*\)'` - head_sha1=`cat "$GIT_DIR/$remote_top/$head_sha1"` - ;; - esac - - # The name under $remote_top the remote HEAD seems to point at. - head_points_at=$( - ( - test -f "$GIT_DIR/$remote_top/master" && echo "master" - cd "$GIT_DIR/$remote_top" && - find . -type f -print | sed -e 's/^\.\///' - ) | ( - done=f - while read name - do - test t = $done && continue - branch_tip=`cat "$GIT_DIR/$remote_top/$name"` - if test "$head_sha1" = "$branch_tip" - then - echo "$name" - done=t - fi - done - ) - ) - - # Upstream URL - git config remote."$origin".url "$repo" && - - # Set up the mappings to track the remote branches. - git config remote."$origin".fetch \ - "+refs/heads/*:$remote_top/*" '^$' && - - # Write out remote.$origin config, and update our "$head_points_at". - case "$head_points_at" in - ?*) - # Local default branch - git symbolic-ref HEAD "refs/heads/$head_points_at" && - - # Tracking branch for the primary branch at the remote. - git update-ref HEAD "$head_sha1" && - - rm -f "refs/remotes/$origin/HEAD" - git symbolic-ref "refs/remotes/$origin/HEAD" \ - "refs/remotes/$origin/$head_points_at" && - - git config branch."$head_points_at".remote "$origin" && - git config branch."$head_points_at".merge "refs/heads/$head_points_at" - ;; - '') - if test -z "$head_sha1" - then - # Source had nonexistent ref in HEAD - echo >&2 "Warning: Remote HEAD refers to nonexistent ref, unable to checkout." - no_checkout=t - else - # Source had detached HEAD pointing nowhere - git update-ref --no-deref HEAD "$head_sha1" && - rm -f "refs/remotes/$origin/HEAD" - fi - ;; - esac - - case "$no_checkout" in - '') - test "z$quiet" = z -a "z$no_progress" = z && v=-v || v= - git read-tree -m -u $v HEAD HEAD - esac -fi -rm -f "$GIT_DIR/CLONE_HEAD" "$GIT_DIR/REMOTE_HEAD" - -trap - 0 diff --git a/git.c b/git.c index c4e4644..4e7845a 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 }, -- 1.5.4.3.610.gea6cd