t/t91XX-svn: start removing use of "git-" from these tests
[gitweb.git] / builtin-clone.c
index 4740b130674c074180a190f4c700863ac992ef91..c8435295cedd920f34a13ec686c73d6b835b28ee 100644 (file)
@@ -18,6 +18,7 @@
 #include "transport.h"
 #include "strbuf.h"
 #include "dir.h"
+#include "pack-refs.h"
 
 /*
  * Overall FIXMEs:
  *
  */
 static const char * const builtin_clone_usage[] = {
-       "git-clone [options] [--] <repo> [<dir>]",
+       "git clone [options] [--] <repo> [<dir>]",
        NULL
 };
 
-static int option_quiet, option_no_checkout, option_bare;
+static int option_quiet, option_no_checkout, option_bare, option_mirror;
 static int option_local, option_no_hardlinks, option_shared;
 static char *option_template, *option_reference, *option_depth;
 static char *option_origin = NULL;
@@ -44,6 +45,8 @@ static struct option builtin_clone_options[] = {
                    "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(0, "mirror", &option_mirror,
+                   "create a mirror repository (implies bare)"),
        OPT_BOOLEAN('l', "local", &option_local,
                    "to clone from a local repository"),
        OPT_BOOLEAN(0, "no-hardlinks", &option_no_hardlinks,
@@ -76,7 +79,7 @@ static char *get_repo_path(const char *repo, int *is_bundle)
                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));
+                       return xstrdup(make_nonrelative_path(path));
                }
        }
 
@@ -85,44 +88,53 @@ static char *get_repo_path(const char *repo, int *is_bundle)
                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 xstrdup(make_nonrelative_path(path));
                }
        }
 
        return NULL;
 }
 
-static char *guess_dir_name(const char *repo, int is_bundle)
+static char *guess_dir_name(const char *repo, int is_bundle, int is_bare)
 {
-       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;
-               }
+       const char *end = repo + strlen(repo), *start;
+
+       /*
+        * Strip trailing slashes and /.git
+        */
+       while (repo < end && is_dir_sep(end[-1]))
+               end--;
+       if (end - repo > 5 && is_dir_sep(end[-5]) &&
+           !strncmp(end - 4, ".git", 4)) {
+               end -= 5;
+               while (repo < end && is_dir_sep(end[-1]))
+                       end--;
+       }
+
+       /*
+        * Find last component, but be prepared that repo could have
+        * the form  "remote.example.com:foo.git", i.e. no slash
+        * in the directory part.
+        */
+       start = end;
+       while (repo < start && !is_dir_sep(start[-1]) && start[-1] != ':')
+               start--;
+
+       /*
+        * Strip .{bundle,git}.
+        */
+       if (is_bundle) {
+               if (end - start > 7 && !strncmp(end - 7, ".bundle", 7))
+                       end -= 7;
+       } else {
+               if (end - start > 4 && !strncmp(end - 4, ".git", 4))
+                       end -= 4;
+       }
+
+       if (is_bare) {
+               char *result = xmalloc(end - start + 5);
+               sprintf(result, "%.*s.git", (int)(end - start), start);
+               return result;
        }
 
        return xstrndup(start, end - start);
@@ -135,6 +147,15 @@ static int is_directory(const char *path)
        return !stat(path, &buf) && S_ISDIR(buf.st_mode);
 }
 
+static void strip_trailing_slashes(char *dir)
+{
+       char *end = dir + strlen(dir);
+
+       while (dir < end - 1 && is_dir_sep(end[-1]))
+               end--;
+       *end = '\0';
+}
+
 static void setup_reference(const char *repo)
 {
        const char *ref_git;
@@ -318,11 +339,15 @@ static struct ref *write_remote_refs(const struct ref *refs,
        struct ref *r;
 
        get_fetch_map(refs, refspec, &tail, 0);
-       get_fetch_map(refs, tag_refspec, &tail, 0);
+       if (!option_mirror)
+               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);
+               add_extra_ref(r->peer_ref->name, r->old_sha1, 0);
+
+       pack_refs(PACK_REFS_ALL);
+       clear_extra_refs();
+
        return local_refs;
 }
 
@@ -337,6 +362,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        const struct ref *refs, *head_points_at, *remote_head, *mapped_refs;
        char branch_top[256], key[256], value[256];
        struct strbuf reflog_msg;
+       struct transport *transport = NULL;
+       char *src_ref_prefix = "refs/heads/";
 
        struct refspec refspec;
 
@@ -351,6 +378,9 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        if (option_no_hardlinks)
                use_local_hardlinks = 0;
 
+       if (option_mirror)
+               option_bare = 1;
+
        if (option_bare) {
                if (option_origin)
                        die("--bare and --origin %s options are incompatible.",
@@ -366,7 +396,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 
        path = get_repo_path(repo_name, &is_bundle);
        if (path)
-               repo = path;
+               repo = xstrdup(make_nonrelative_path(repo_name));
        else if (!strchr(repo_name, ':'))
                repo = xstrdup(make_absolute_path(repo_name));
        else
@@ -375,7 +405,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
        if (argc == 2)
                dir = xstrdup(argv[1]);
        else
-               dir = guess_dir_name(repo_name, is_bundle);
+               dir = guess_dir_name(repo_name, is_bundle, option_bare);
+       strip_trailing_slashes(dir);
 
        if (!stat(dir, &buf))
                die("destination directory '%s' already exists.", dir);
@@ -400,8 +431,12 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 
        if (!option_bare) {
                junk_work_tree = work_tree;
+               if (safe_create_leading_directories_const(work_tree) < 0)
+                       die("could not create leading directories of '%s': %s",
+                                       work_tree, strerror(errno));
                if (mkdir(work_tree, 0755))
-                       die("could not create work tree dir '%s'.", work_tree);
+                       die("could not create work tree dir '%s': %s.",
+                                       work_tree, strerror(errno));
                set_git_work_tree(work_tree);
        }
        junk_git_dir = git_dir;
@@ -410,44 +445,65 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 
        setenv(CONFIG_ENVIRONMENT, xstrdup(mkpath("%s/config", git_dir)), 1);
 
+       if (safe_create_leading_directories_const(git_dir) < 0)
+               die("could not create leading directories of '%s'", git_dir);
        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);
 
+       /*
+        * At this point, the config exists, so we do not need the
+        * environment variable.  We actually need to unset it, too, to
+        * re-enable parsing of the global configs.
+        */
+       unsetenv(CONFIG_ENVIRONMENT);
+
        if (option_reference)
                setup_reference(git_dir);
 
        git_config(git_default_config, NULL);
 
        if (option_bare) {
-               strcpy(branch_top, "refs/heads/");
+               if (option_mirror)
+                       src_ref_prefix = "refs/";
+               strcpy(branch_top, src_ref_prefix);
 
                git_config_set("core.bare", "true");
        } else {
                snprintf(branch_top, sizeof(branch_top),
                         "refs/remotes/%s/", option_origin);
+       }
 
+       if (option_mirror || !option_bare) {
                /* Configure the remote */
+               if (option_mirror) {
+                       snprintf(key, sizeof(key),
+                                       "remote.%s.mirror", option_origin);
+                       git_config_set(key, "true");
+               }
+
                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);
+                               "+%s*:%s*", src_ref_prefix, branch_top);
                git_config_set_multivar(key, value, "^$", 0);
        }
 
        refspec.force = 0;
        refspec.pattern = 1;
-       refspec.src = "refs/heads/";
+       refspec.src = src_ref_prefix;
        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 = transport_get(remote, remote->url[0]);
+
+               if (!transport->get_refs_list || !transport->fetch)
+                       die("Don't know how to clone %s", transport->url);
 
                transport_set_option(transport, TRANS_OPT_KEEP, "yes");
 
@@ -458,6 +514,10 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
                if (option_quiet)
                        transport->verbose = -1;
 
+               if (option_upload_pack)
+                       transport_set_option(transport, TRANS_OPT_UPLOADPACK,
+                                            option_upload_pack);
+
                refs = transport_get_remote_refs(transport);
                transport_fetch_refs(transport, refs);
        }
@@ -514,6 +574,9 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
                option_no_checkout = 1;
        }
 
+       if (transport)
+               transport_unlock_pack(transport);
+
        if (!option_no_checkout) {
                struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
                struct unpack_trees_options opts;