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#include "cache.h"
#include "parse-options.h"
#include "transport.h"
#include "remote.h"
#include "string-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 int show_all(void);
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 int opt_parse_track(const struct option *opt, const char *arg, int not)
{
struct string_list *list = opt->value;
if (not)
string_list_clear(list, 0);
else
string_list_append(arg, list);
return 0;
}
static int fetch_remote(const char *name)
{
const char *argv[] = { "fetch", name, NULL };
printf("Updating %s\n", name);
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 string_list track = { NULL, 0, 0 };
const char *master = NULL;
struct remote *remote;
struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
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_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
if (!valid_fetch_refspec(buf2.buf))
die("'%s' is not a valid remote name", name);
strbuf_addf(&buf, "remote.%s.url", name);
if (git_config_set(buf.buf, url))
return 1;
strbuf_reset(&buf);
strbuf_addf(&buf, "remote.%s.fetch", name);
if (track.nr == 0)
string_list_append("*", &track);
for (i = 0; i < track.nr; i++) {
struct string_list_item *item = track.items + i;
strbuf_reset(&buf2);
strbuf_addch(&buf2, '+');
if (mirror)
strbuf_addf(&buf2, "refs/%s:refs/%s",
item->string, item->string);
else
strbuf_addf(&buf2, "refs/heads/%s:refs/remotes/%s/%s",
item->string, name, item->string);
if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
return 1;
}
if (mirror) {
strbuf_reset(&buf);
strbuf_addf(&buf, "remote.%s.mirror", name);
if (git_config_set(buf.buf, "true"))
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);
string_list_clear(&track, 0);
return 0;
}
struct branch_info {
char *remote;
struct string_list merge;
};
static struct string_list branch_list;
static const char *abbrev_ref(const char *name, const char *prefix)
{
const char *abbrev = skip_prefix(name, prefix);
if (abbrev)
return abbrev;
return name;
}
#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
static int config_read_branches(const char *key, const char *value, void *cb)
{
if (!prefixcmp(key, "branch.")) {
char *name;
struct string_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 = string_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 = abbrev_branch(value);
while (space) {
char *merge;
merge = xstrndup(value, space - value);
string_list_append(merge, &info->merge);
value = abbrev_branch(space + 1);
space = strchr(value, ' ');
}
string_list_append(xstrdup(value), &info->merge);
}
}
return 0;
}
static void read_branches(void)
{
if (branch_list.nr)
return;
git_config(config_read_branches, NULL);
sort_string_list(&branch_list);
}
struct ref_states {
struct remote *remote;
struct string_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 string_list_item *item;
const char *name = abbrev_branch(refspec.src);
/* symbolic refs pointing nowhere were handled already */
if ((flags & REF_ISSYMREF) ||
unsorted_string_list_has_string(&states->tracked,
name) ||
unsorted_string_list_has_string(&states->new,
name))
return 0;
item = string_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_strings = states->tracked.strdup_strings = 1;
for (ref = fetch_map; ref; ref = ref->next) {
struct string_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;
}
string_list_append(abbrev_branch(ref->name), target)->util = util;
}
free_refs(fetch_map);
for_each_ref(handle_one_branch, states);
sort_string_list(&states->stale);
return 0;
}
struct known_remote {
struct known_remote *next;
struct remote *remote;
};
struct known_remotes {
struct remote *to_delete;
struct known_remote *list;
};
static int add_known_remote(struct remote *remote, void *cb_data)
{
struct known_remotes *all = cb_data;
struct known_remote *r;
if (!strcmp(all->to_delete->name, remote->name))
return 0;
r = xmalloc(sizeof(*r));
r->remote = remote;
r->next = all->list;
all->list = r;
return 0;
}
struct branches_for_remote {
struct remote *remote;
struct string_list *branches;
struct known_remotes *keep;
};
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;
struct refspec refspec;
struct string_list_item *item;
struct known_remote *kr;
memset(&refspec, 0, sizeof(refspec));
refspec.dst = (char *)refname;
if (remote_find_tracking(branches->remote, &refspec))
return 0;
/* don't delete a branch if another remote also uses it */
for (kr = branches->keep->list; kr; kr = kr->next) {
memset(&refspec, 0, sizeof(refspec));
refspec.dst = (char *)refname;
if (!remote_find_tracking(kr->remote, &refspec))
return 0;
}
/* make sure that symrefs are deleted */
if (flags & REF_ISSYMREF)
return unlink(git_path(refname));
item = string_list_append(refname, branches->branches);
item->util = xmalloc(20);
hashcpy(item->util, sha1);
return 0;
}
static int remove_branches(struct string_list *branches)
{
int i, result = 0;
for (i = 0; i < branches->nr; i++) {
struct string_list_item *item = branches->items + i;
const char *refname = item->string;
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 = STRBUF_INIT;
struct known_remotes known_remotes = { NULL, NULL };
struct string_list branches = { NULL, 0, 0, 1 };
struct branches_for_remote cb_data = { NULL, &branches, &known_remotes };
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]);
known_remotes.to_delete = remote;
for_each_remote(add_known_remote, &known_remotes);
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 string_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->string, *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.
*/
cb_data.remote = remote;
i = for_each_ref(add_branch_for_removal, &cb_data);
strbuf_release(&buf);
if (!i)
i = remove_branches(&branches);
string_list_clear(&branches, 1);
return i;
}
static void show_list(const char *title, struct string_list *list,
const char *extra_arg)
{
int i;
if (!list->nr)
return;
printf(title, list->nr > 1 ? "es" : "", extra_arg);
printf("\n");
for (i = 0; i < list->nr; i++)
printf(" %s\n", list->items[i].string);
}
static int get_remote_ref_states(const char *name,
struct ref_states *states,
int query)
{
struct transport *transport;
const struct ref *ref;
states->remote = remote_get(name);
if (!states->remote)
return error("No such remote: %s", name);
read_branches();
if (query) {
transport = transport_get(NULL, states->remote->url_nr > 0 ?
states->remote->url[0] : NULL);
ref = transport_get_remote_refs(transport);
transport_disconnect(transport);
get_ref_states(ref, states);
}
return 0;
}
static int append_ref_to_tracked_list(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))
string_list_append(abbrev_branch(refspec.src), &states->tracked);
return 0;
}
static int show(int argc, const char **argv)
{
int no_query = 0, result = 0;
struct option options[] = {
OPT_GROUP("show specific options"),
OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
OPT_END()
};
struct ref_states states;
argc = parse_options(argc, argv, options, builtin_remote_usage, 0);
if (argc < 1)
return show_all();
memset(&states, 0, sizeof(states));
for (; argc; argc--, argv++) {
int i;
get_remote_ref_states(*argv, &states, !no_query);
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 string_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->string);
for (j = 0; j < info->merge.nr; j++)
printf(" %s", info->merge.items[j].string);
printf("\n");
}
if (!no_query) {
show_list(" New remote branch%s (next fetch "
"will store in remotes/%s)",
&states.new, states.remote->name);
show_list(" Stale tracking branch%s (use 'git remote "
"prune')", &states.stale, "");
}
if (no_query)
for_each_ref(append_ref_to_tracked_list, &states);
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\n",
spec->force ? "+" : "",
abbrev_branch(spec->src),
spec->dst ? ":" : "",
spec->dst ? abbrev_branch(spec->dst) : "");
}
}
/* NEEDSWORK: free remote */
string_list_clear(&states.new, 0);
string_list_clear(&states.stale, 0);
string_list_clear(&states.tracked, 0);
}
return result;
}
static int prune(int argc, const char **argv)
{
int dry_run = 0, result = 0;
struct option options[] = {
OPT_GROUP("prune 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++) {
int i;
get_remote_ref_states(*argv, &states, 1);
if (states.stale.nr) {
printf("Pruning %s\n", *argv);
printf("URL: %s\n",
states.remote->url_nr
? states.remote->url[0]
: "(no URL)");
}
for (i = 0; i < states.stale.nr; i++) {
const char *refname = states.stale.items[i].util;
if (!dry_run)
result |= delete_ref(refname, NULL);
printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
abbrev_ref(refname, "refs/remotes/"));
}
/* NEEDSWORK: free remote */
string_list_clear(&states.new, 0);
string_list_clear(&states.stale, 0);
string_list_clear(&states.tracked, 0);
}
return result;
}
static int get_one_remote_for_update(struct remote *remote, void *priv)
{
struct string_list *list = priv;
if (!remote->skip_default_update)
string_list_append(xstrdup(remote->name), list);
return 0;
}
struct remote_group {
const char *name;
struct string_list *list;
} remote_group;
static int get_remote_group(const char *key, const char *value, void *cb)
{
if (!prefixcmp(key, "remotes.") &&
!strcmp(key + 8, remote_group.name)) {
/* split list by white space */
int space = strcspn(value, " \t\n");
while (*value) {
if (space > 1)
string_list_append(xstrndup(value, space),
remote_group.list);
value += space + (value[space] != '\0');
space = strcspn(value, " \t\n");
}
}
return 0;
}
static int update(int argc, const char **argv)
{
int i, result = 0;
struct string_list list = { NULL, 0, 0, 0 };
static const char *default_argv[] = { NULL, "default", NULL };
if (argc < 2) {
argc = 2;
argv = default_argv;
}
remote_group.list = &list;
for (i = 1; i < argc; i++) {
remote_group.name = argv[i];
result = git_config(get_remote_group, NULL);
}
if (!result && !list.nr && argc == 2 && !strcmp(argv[1], "default"))
result = for_each_remote(get_one_remote_for_update, &list);
for (i = 0; i < list.nr; i++)
result |= fetch_remote(list.items[i].string);
/* all names were strdup()ed or strndup()ed */
list.strdup_strings = 1;
string_list_clear(&list, 0);
return result;
}
static int get_one_entry(struct remote *remote, void *priv)
{
struct string_list *list = priv;
if (remote->url_nr > 0) {
int i;
for (i = 0; i < remote->url_nr; i++)
string_list_append(remote->name, list)->util = (void *)remote->url[i];
} else
string_list_append(remote->name, list)->util = NULL;
return 0;
}
static int show_all(void)
{
struct string_list list = { NULL, 0, 0 };
int result = for_each_remote(get_one_entry, &list);
if (!result) {
int i;
sort_string_list(&list);
for (i = 0; i < list.nr; i++) {
struct string_list_item *item = list.items + i;
if (verbose)
printf("%s\t%s\n", item->string,
item->util ? (const char *)item->util : "");
else {
if (i && !strcmp((item - 1)->string, item->string))
continue;
printf("%s\n", item->string);
}
}
}
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(argc, argv);
else if (!strcmp(argv[0], "prune"))
result = prune(argc, argv);
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;
}