Make git-remote a builtin
authorJohannes Schindelin <Johannes.Schindelin@gmx.de>
Fri, 29 Feb 2008 01:45:45 +0000 (01:45 +0000)
committerJunio C Hamano <gitster@pobox.com>
Sat, 1 Mar 2008 09:51:44 +0000 (01:51 -0800)
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Makefile
builtin-remote.c [new file with mode: 0644]
builtin.h
contrib/examples/git-remote.perl [moved from git-remote.perl with 100% similarity]
git.c
remote.c
remote.h
t/t5505-remote.sh

index a5b6eeb..f9ea96a 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -243,7 +243,7 @@ SCRIPT_SH = \
 SCRIPT_PERL = \
        git-add--interactive.perl \
        git-archimport.perl git-cvsimport.perl git-relink.perl \
-       git-cvsserver.perl git-remote.perl git-cvsexportcommit.perl \
+       git-cvsserver.perl git-cvsexportcommit.perl \
        git-send-email.perl git-svn.perl
 
 SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) \
@@ -380,6 +380,7 @@ BUILTIN_OBJS = \
        builtin-push.o \
        builtin-read-tree.o \
        builtin-reflog.o \
+       builtin-remote.o \
        builtin-send-pack.o \
        builtin-config.o \
        builtin-rerere.o \
diff --git a/builtin-remote.c b/builtin-remote.c
new file mode 100644 (file)
index 0000000..25b0227
--- /dev/null
@@ -0,0 +1,547 @@
+#include "cache.h"
+#include "parse-options.h"
+#include "transport.h"
+#include "remote.h"
+#include "path-list.h"
+#include "strbuf.h"
+#include "run-command.h"
+#include "refs.h"
+
+static const char * const builtin_remote_usage[] = {
+       "git remote",
+       "git remote add <name> <url>",
+       "git remote rm <name>",
+       "git remote show <name>",
+       "git remote prune <name>",
+       "git remote update [group]",
+       NULL
+};
+
+static int verbose;
+
+static inline int postfixcmp(const char *string, const char *postfix)
+{
+       int len1 = strlen(string), len2 = strlen(postfix);
+       if (len1 < len2)
+               return 1;
+       return strcmp(string + len1 - len2, postfix);
+}
+
+static inline const char *skip_prefix(const char *name, const char *prefix)
+{
+       return !name ? "" :
+               prefixcmp(name, prefix) ?  name : name + strlen(prefix);
+}
+
+static int opt_parse_track(const struct option *opt, const char *arg, int not)
+{
+       struct path_list *list = opt->value;
+       if (not)
+               path_list_clear(list, 0);
+       else
+               path_list_append(arg, list);
+       return 0;
+}
+
+static int fetch_remote(const char *name)
+{
+       const char *argv[] = { "fetch", name, NULL };
+       if (run_command_v_opt(argv, RUN_GIT_CMD))
+               return error("Could not fetch %s", name);
+       return 0;
+}
+
+static int add(int argc, const char **argv)
+{
+       int fetch = 0, mirror = 0;
+       struct path_list track = { NULL, 0, 0 };
+       const char *master = NULL;
+       struct remote *remote;
+       struct strbuf buf, buf2;
+       const char *name, *url;
+       int i;
+
+       struct option options[] = {
+               OPT_GROUP("add specific options"),
+               OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"),
+               OPT_CALLBACK('t', "track", &track, "branch",
+                       "branch(es) to track", opt_parse_track),
+               OPT_STRING('m', "master", &master, "branch", "master branch"),
+               OPT_BOOLEAN(0, "mirror", &mirror, "no separate remotes"),
+               OPT_END()
+       };
+
+       argc = parse_options(argc, argv, options, builtin_remote_usage, 0);
+
+       if (argc < 2)
+               usage_with_options(builtin_remote_usage, options);
+
+       name = argv[0];
+       url = argv[1];
+
+       remote = remote_get(name);
+       if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
+                       remote->fetch_refspec_nr))
+               die("remote %s already exists.", name);
+
+       strbuf_init(&buf, 0);
+       strbuf_init(&buf2, 0);
+
+       strbuf_addf(&buf, "remote.%s.url", name);
+       if (git_config_set(buf.buf, url))
+               return 1;
+
+       if (track.nr == 0)
+               path_list_append("*", &track);
+       for (i = 0; i < track.nr; i++) {
+               struct path_list_item *item = track.items + i;
+
+               strbuf_reset(&buf);
+               strbuf_addf(&buf, "remote.%s.fetch", name);
+
+               strbuf_reset(&buf2);
+               if (mirror)
+                       strbuf_addf(&buf2, "refs/%s:refs/%s",
+                                       item->path, item->path);
+               else
+                       strbuf_addf(&buf2, "refs/heads/%s:refs/remotes/%s/%s",
+                                       item->path, name, item->path);
+               if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
+                       return 1;
+       }
+
+       if (fetch && fetch_remote(name))
+               return 1;
+
+       if (master) {
+               strbuf_reset(&buf);
+               strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
+
+               strbuf_reset(&buf2);
+               strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
+
+               if (create_symref(buf.buf, buf2.buf, "remote add"))
+                       return error("Could not setup master '%s'", master);
+       }
+
+       strbuf_release(&buf);
+       strbuf_release(&buf2);
+       path_list_clear(&track, 0);
+
+       return 0;
+}
+
+struct branch_info {
+       char *remote;
+       struct path_list merge;
+};
+
+static struct path_list branch_list;
+
+static int config_read_branches(const char *key, const char *value)
+{
+       if (!prefixcmp(key, "branch.")) {
+               char *name;
+               struct path_list_item *item;
+               struct branch_info *info;
+               enum { REMOTE, MERGE } type;
+
+               key += 7;
+               if (!postfixcmp(key, ".remote")) {
+                       name = xstrndup(key, strlen(key) - 7);
+                       type = REMOTE;
+               } else if (!postfixcmp(key, ".merge")) {
+                       name = xstrndup(key, strlen(key) - 6);
+                       type = MERGE;
+               } else
+                       return 0;
+
+               item = path_list_insert(name, &branch_list);
+
+               if (!item->util)
+                       item->util = xcalloc(sizeof(struct branch_info), 1);
+               info = item->util;
+               if (type == REMOTE) {
+                       if (info->remote)
+                               warning("more than one branch.%s", key);
+                       info->remote = xstrdup(value);
+               } else {
+                       char *space = strchr(value, ' ');
+                       value = skip_prefix(value, "refs/heads/");
+                       while (space) {
+                               char *merge;
+                               merge = xstrndup(value, space - value);
+                               path_list_append(merge, &info->merge);
+                               value = skip_prefix(space + 1, "refs/heads/");
+                               space = strchr(value, ' ');
+                       }
+                       path_list_append(xstrdup(value), &info->merge);
+               }
+       }
+       return 0;
+}
+
+static void read_branches(void)
+{
+       if (branch_list.nr)
+               return;
+       git_config(config_read_branches);
+       sort_path_list(&branch_list);
+}
+
+struct ref_states {
+       struct remote *remote;
+       struct strbuf remote_prefix;
+       struct path_list new, stale, tracked;
+};
+
+static int handle_one_branch(const char *refname,
+       const unsigned char *sha1, int flags, void *cb_data)
+{
+       struct ref_states *states = cb_data;
+       struct refspec refspec;
+
+       memset(&refspec, 0, sizeof(refspec));
+       refspec.dst = (char *)refname;
+       if (!remote_find_tracking(states->remote, &refspec)) {
+               struct path_list_item *item;
+               const char *name = skip_prefix(refspec.src, "refs/heads/");
+               if (unsorted_path_list_has_path(&states->tracked, name) ||
+                               unsorted_path_list_has_path(&states->new,
+                                       name))
+                       return 0;
+               item = path_list_append(name, &states->stale);
+               item->util = xstrdup(refname);
+       }
+       return 0;
+}
+
+static int get_ref_states(const struct ref *ref, struct ref_states *states)
+{
+       struct ref *fetch_map = NULL, **tail = &fetch_map;
+       int i;
+
+       for (i = 0; i < states->remote->fetch_refspec_nr; i++)
+               if (get_fetch_map(ref, states->remote->fetch + i, &tail, 1))
+                       die("Could not get fetch map for refspec %s",
+                               states->remote->fetch_refspec[i]);
+
+       states->new.strdup_paths = states->tracked.strdup_paths = 1;
+       for (ref = fetch_map; ref; ref = ref->next) {
+               struct path_list *target = &states->tracked;
+               unsigned char sha1[20];
+               void *util = NULL;
+
+               if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
+                       target = &states->new;
+               else {
+                       target = &states->tracked;
+                       if (hashcmp(sha1, ref->new_sha1))
+                               util = &states;
+               }
+               path_list_append(skip_prefix(ref->name, "refs/heads/"),
+                               target)->util = util;
+       }
+       free_refs(fetch_map);
+
+       strbuf_addf(&states->remote_prefix,
+               "refs/remotes/%s/", states->remote->name);
+       for_each_ref(handle_one_branch, states);
+       sort_path_list(&states->stale);
+
+       return 0;
+}
+
+struct branches_for_remote {
+       const char *prefix;
+       struct path_list *branches;
+};
+
+static int add_branch_for_removal(const char *refname,
+       const unsigned char *sha1, int flags, void *cb_data)
+{
+       struct branches_for_remote *branches = cb_data;
+
+       if (!prefixcmp(refname, branches->prefix)) {
+               struct path_list_item *item;
+               item = path_list_append(refname, branches->branches);
+               item->util = xmalloc(20);
+               hashcpy(item->util, sha1);
+       }
+
+       return 0;
+}
+
+static int remove_branches(struct path_list *branches)
+{
+       int i, result = 0;
+       for (i = 0; i < branches->nr; i++) {
+               struct path_list_item *item = branches->items + i;
+               const char *refname = item->path;
+               unsigned char *sha1 = item->util;
+
+               if (delete_ref(refname, sha1))
+                       result |= error("Could not remove branch %s", refname);
+       }
+       return result;
+}
+
+static int rm(int argc, const char **argv)
+{
+       struct option options[] = {
+               OPT_END()
+       };
+       struct remote *remote;
+       struct strbuf buf;
+       struct path_list branches = { NULL, 0, 0, 1 };
+       struct branches_for_remote cb_data = { NULL, &branches };
+       int i;
+
+       if (argc != 2)
+               usage_with_options(builtin_remote_usage, options);
+
+       remote = remote_get(argv[1]);
+       if (!remote)
+               die("No such remote: %s", argv[1]);
+
+       strbuf_init(&buf, 0);
+       strbuf_addf(&buf, "remote.%s", remote->name);
+       if (git_config_rename_section(buf.buf, NULL) < 1)
+               return error("Could not remove config section '%s'", buf.buf);
+
+       read_branches();
+       for (i = 0; i < branch_list.nr; i++) {
+               struct path_list_item *item = branch_list.items + i;
+               struct branch_info *info = item->util;
+               if (info->remote && !strcmp(info->remote, remote->name)) {
+                       const char *keys[] = { "remote", "merge", NULL }, **k;
+                       for (k = keys; *k; k++) {
+                               strbuf_reset(&buf);
+                               strbuf_addf(&buf, "branch.%s.%s",
+                                               item->path, *k);
+                               if (git_config_set(buf.buf, NULL)) {
+                                       strbuf_release(&buf);
+                                       return -1;
+                               }
+                       }
+               }
+       }
+
+       /*
+        * We cannot just pass a function to for_each_ref() which deletes
+        * the branches one by one, since for_each_ref() relies on cached
+        * refs, which are invalidated when deleting a branch.
+        */
+       strbuf_reset(&buf);
+       strbuf_addf(&buf, "refs/remotes/%s/", remote->name);
+       cb_data.prefix = buf.buf;
+       i = for_each_ref(add_branch_for_removal, &cb_data);
+       strbuf_release(&buf);
+
+       if (!i)
+               i = remove_branches(&branches);
+       path_list_clear(&branches, 1);
+
+       return i;
+}
+
+static void show_list(const char *title, struct path_list *list)
+{
+       int i;
+
+       if (!list->nr)
+               return;
+
+       printf(title, list->nr > 1 ? "es" : "");
+       printf("\n    ");
+       for (i = 0; i < list->nr; i++)
+               printf("%s%s", i ? " " : "", list->items[i].path);
+       printf("\n");
+}
+
+static int show_or_prune(int argc, const char **argv, int prune)
+{
+       int dry_run = 0, result = 0;
+       struct option options[] = {
+               OPT_GROUP("show specific options"),
+               OPT__DRY_RUN(&dry_run),
+               OPT_END()
+       };
+       struct ref_states states;
+
+       argc = parse_options(argc, argv, options, builtin_remote_usage, 0);
+
+       if (argc < 1)
+               usage_with_options(builtin_remote_usage, options);
+
+       memset(&states, 0, sizeof(states));
+       for (; argc; argc--, argv++) {
+               struct transport *transport;
+               const struct ref *ref;
+               struct strbuf buf;
+               int i, got_states;
+
+               states.remote = remote_get(*argv);
+               if (!states.remote)
+                       return error("No such remote: %s", *argv);
+               transport = transport_get(NULL, states.remote->url_nr > 0 ?
+                       states.remote->url[0] : NULL);
+               ref = transport_get_remote_refs(transport);
+
+               read_branches();
+               got_states = get_ref_states(ref, &states);
+               if (got_states)
+                       result = error("Error getting local info for '%s'",
+                                       states.remote->name);
+
+               if (prune) {
+                       struct strbuf buf;
+
+                       strbuf_init(&buf, 0);
+                       for (i = 0; i < states.stale.nr; i++) {
+                               strbuf_reset(&buf);
+                               strbuf_addf(&buf, "refs/remotes/%s/%s", *argv,
+                                               states.stale.items[i].path);
+                               result |= delete_ref(buf.buf, NULL);
+                       }
+
+                       strbuf_release(&buf);
+                       goto cleanup_states;
+               }
+
+               printf("* remote %s\n  URL: %s\n", *argv,
+                       states.remote->url_nr > 0 ?
+                               states.remote->url[0] : "(no URL)");
+
+               for (i = 0; i < branch_list.nr; i++) {
+                       struct path_list_item *branch = branch_list.items + i;
+                       struct branch_info *info = branch->util;
+                       int j;
+
+                       if (!info->merge.nr || strcmp(*argv, info->remote))
+                               continue;
+                       printf("  Remote branch%s merged with 'git pull' "
+                               "while on branch %s\n   ",
+                               info->merge.nr > 1 ? "es" : "",
+                               branch->path);
+                       for (j = 0; j < info->merge.nr; j++)
+                               printf(" %s", info->merge.items[j].path);
+                       printf("\n");
+               }
+
+               if (got_states)
+                       continue;
+               strbuf_init(&buf, 0);
+               strbuf_addf(&buf, "  New remote branch%%s (next fetch will "
+                       "store in remotes/%s)", states.remote->name);
+               show_list(buf.buf, &states.new);
+               strbuf_release(&buf);
+               show_list("  Stale tracking branch%s (use 'git remote prune')",
+                               &states.stale);
+               show_list("  Tracked remote branch%s",
+                               &states.tracked);
+
+               if (states.remote->push_refspec_nr) {
+                       printf("  Local branch%s pushed with 'git push'\n   ",
+                               states.remote->push_refspec_nr > 1 ?
+                                       "es" : "");
+                       for (i = 0; i < states.remote->push_refspec_nr; i++) {
+                               struct refspec *spec = states.remote->push + i;
+                               printf(" %s%s%s%s", spec->force ? "+" : "",
+                                       skip_prefix(spec->src, "refs/heads/"),
+                                       spec->dst ? ":" : "",
+                                       skip_prefix(spec->dst, "refs/heads/"));
+                       }
+               }
+cleanup_states:
+               /* NEEDSWORK: free remote */
+               path_list_clear(&states.new, 0);
+               path_list_clear(&states.stale, 0);
+               path_list_clear(&states.tracked, 0);
+       }
+
+       return result;
+}
+
+static int update_one(struct remote *remote, void *priv)
+{
+       if (!remote->skip_default_update)
+               return fetch_remote(remote->name);
+       return 0;
+}
+
+static int update(int argc, const char **argv)
+{
+       int i;
+
+       if (argc < 2)
+               return for_each_remote(update_one, NULL);
+
+       for (i = 1; i < argc; i++)
+               if (fetch_remote(argv[i]))
+                       return 1;
+       return 0;
+}
+
+static int get_one_entry(struct remote *remote, void *priv)
+{
+       struct path_list *list = priv;
+
+       path_list_append(remote->name, list)->util = remote->url_nr ?
+               (void *)remote->url[0] : NULL;
+       if (remote->url_nr > 1)
+               warning("Remote %s has more than one URL", remote->name);
+
+       return 0;
+}
+
+static int show_all(void)
+{
+       struct path_list list = { NULL, 0, 0 };
+       int result = for_each_remote(get_one_entry, &list);
+
+       if (!result) {
+               int i;
+
+               sort_path_list(&list);
+               for (i = 0; i < list.nr; i++) {
+                       struct path_list_item *item = list.items + i;
+                       printf("%s%s%s\n", item->path,
+                               verbose ? "\t" : "",
+                               verbose && item->util ?
+                                       (const char *)item->util : "");
+               }
+       }
+       return result;
+}
+
+int cmd_remote(int argc, const char **argv, const char *prefix)
+{
+       struct option options[] = {
+               OPT__VERBOSE(&verbose),
+               OPT_END()
+       };
+       int result;
+
+       argc = parse_options(argc, argv, options, builtin_remote_usage,
+               PARSE_OPT_STOP_AT_NON_OPTION);
+
+       if (argc < 1)
+               result = show_all();
+       else if (!strcmp(argv[0], "add"))
+               result = add(argc, argv);
+       else if (!strcmp(argv[0], "rm"))
+               result = rm(argc, argv);
+       else if (!strcmp(argv[0], "show"))
+               result = show_or_prune(argc, argv, 0);
+       else if (!strcmp(argv[0], "prune"))
+               result = show_or_prune(argc, argv, 1);
+       else if (!strcmp(argv[0], "update"))
+               result = update(argc, argv);
+       else {
+               error("Unknown subcommand: %s", argv[0]);
+               usage_with_options(builtin_remote_usage, options);
+       }
+
+       return result ? 1 : 0;
+}
index 674c8a1..95126fd 100644 (file)
--- a/builtin.h
+++ b/builtin.h
@@ -67,6 +67,7 @@ extern int cmd_prune_packed(int argc, const char **argv, const char *prefix);
 extern int cmd_push(int argc, const char **argv, const char *prefix);
 extern int cmd_read_tree(int argc, const char **argv, const char *prefix);
 extern int cmd_reflog(int argc, const char **argv, const char *prefix);
+extern int cmd_remote(int argc, const char **argv, const char *prefix);
 extern int cmd_config(int argc, const char **argv, const char *prefix);
 extern int cmd_rerere(int argc, const char **argv, const char *prefix);
 extern int cmd_reset(int argc, const char **argv, const char *prefix);
diff --git a/git.c b/git.c
index 9cca81a..1e3eb10 100644 (file)
--- a/git.c
+++ b/git.c
@@ -334,6 +334,7 @@ static void handle_internal_command(int argc, const char **argv)
                { "push", cmd_push, RUN_SETUP },
                { "read-tree", cmd_read_tree, RUN_SETUP },
                { "reflog", cmd_reflog, RUN_SETUP },
+               { "remote", cmd_remote, RUN_SETUP },
                { "repo-config", cmd_config },
                { "rerere", cmd_rerere, RUN_SETUP },
                { "reset", cmd_reset, RUN_SETUP },
index 7e19372..f3f7375 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -357,7 +357,8 @@ static int handle_config(const char *key, const char *value)
                        remote->fetch_tags = -1;
        } else if (!strcmp(subkey, ".proxy")) {
                remote->http_proxy = xstrdup(value);
-       }
+       } else if (!strcmp(subkey, ".skipdefaultupdate"))
+               remote->skip_default_update = 1;
        return 0;
 }
 
index 0f6033f..f1dedf1 100644 (file)
--- a/remote.h
+++ b/remote.h
@@ -25,6 +25,7 @@ struct remote {
         * 2 to always fetch tags
         */
        int fetch_tags;
+       int skip_default_update;
 
        const char *receivepack;
        const char *uploadpack;
index e1e0a18..5986982 100755 (executable)
@@ -97,9 +97,9 @@ test_expect_success 'remove remote' '
 cat > test/expect << EOF
 * remote origin
   URL: $(pwd)/one/.git
-  Remote branch(es) merged with 'git pull' while on branch master
+  Remote branch merged with 'git pull' while on branch master
     master
-  New remote branches (next fetch will store in remotes/origin)
+  New remote branch (next fetch will store in remotes/origin)
     master
   Tracked remote branches
     side master