/src/git/builtin/remote.c

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#include "builtin.h"
#include "config.h"
#include "gettext.h"
#include "parse-options.h"
#include "path.h"
#include "transport.h"
#include "remote.h"
#include "string-list.h"
#include "strbuf.h"
#include "run-command.h"
#include "rebase.h"
#include "refs.h"
#include "refspec.h"
#include "object-store-ll.h"
#include "strvec.h"
#include "commit-reach.h"
#include "progress.h"

static const char * const builtin_remote_usage[] = {
  "git remote [-v | --verbose]",
  N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
  N_("git remote rename [--[no-]progress] <old> <new>"),
  N_("git remote remove <name>"),
  N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  N_("git remote [-v | --verbose] show [-n] <name>"),
  N_("git remote prune [-n | --dry-run] <name>"),
  N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
  N_("git remote set-branches [--add] <name> <branch>..."),
  N_("git remote get-url [--push] [--all] <name>"),
  N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  N_("git remote set-url --add <name> <newurl>"),
  N_("git remote set-url --delete <name> <url>"),
  NULL
};

static const char * const builtin_remote_add_usage[] = {
  N_("git remote add [<options>] <name> <url>"),
  NULL
};

static const char * const builtin_remote_rename_usage[] = {
  N_("git remote rename [--[no-]progress] <old> <new>"),
  NULL
};

static const char * const builtin_remote_rm_usage[] = {
  N_("git remote remove <name>"),
  NULL
};

static const char * const builtin_remote_sethead_usage[] = {
  N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  NULL
};

static const char * const builtin_remote_setbranches_usage[] = {
  N_("git remote set-branches <name> <branch>..."),
  N_("git remote set-branches --add <name> <branch>..."),
  NULL
};

static const char * const builtin_remote_show_usage[] = {
  N_("git remote show [<options>] <name>"),
  NULL
};

static const char * const builtin_remote_prune_usage[] = {
  N_("git remote prune [<options>] <name>"),
  NULL
};

static const char * const builtin_remote_update_usage[] = {
  N_("git remote update [<options>] [<group> | <remote>]..."),
  NULL
};

static const char * const builtin_remote_geturl_usage[] = {
  N_("git remote get-url [--push] [--all] <name>"),
  NULL
};

static const char * const builtin_remote_seturl_usage[] = {
  N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  N_("git remote set-url --add <name> <newurl>"),
  N_("git remote set-url --delete <name> <url>"),
  NULL
};

#define GET_REF_STATES (1<<0)
#define GET_HEAD_NAMES (1<<1)
#define GET_PUSH_REF_STATES (1<<2)

static int verbose;

static int fetch_remote(const char *name)
{
  struct child_process cmd = CHILD_PROCESS_INIT;

  strvec_push(&cmd.args, "fetch");
  if (verbose)
    strvec_push(&cmd.args, "-v");
  strvec_push(&cmd.args, name);
  cmd.git_cmd = 1;
  printf_ln(_("Updating %s"), name);
  if (run_command(&cmd))
    return error(_("Could not fetch %s"), name);
  return 0;
}

enum {
  TAGS_UNSET = 0,
  TAGS_DEFAULT = 1,
  TAGS_SET = 2
};

#define MIRROR_NONE 0
#define MIRROR_FETCH 1
#define MIRROR_PUSH 2
#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)

static void add_branch(const char *key, const char *branchname,
           const char *remotename, int mirror, struct strbuf *tmp)
{
  strbuf_reset(tmp);
  strbuf_addch(tmp, '+');
  if (mirror)
    strbuf_addf(tmp, "refs/%s:refs/%s",
        branchname, branchname);
  else
    strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
        branchname, remotename, branchname);
  git_config_set_multivar(key, tmp->buf, "^$", 0);
}

static const char mirror_advice[] =
N_("--mirror is dangerous and deprecated; please\n"
   "\t use --mirror=fetch or --mirror=push instead");

static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
{
  unsigned *mirror = opt->value;
  if (not)
    *mirror = MIRROR_NONE;
  else if (!arg) {
    warning("%s", _(mirror_advice));
    *mirror = MIRROR_BOTH;
  }
  else if (!strcmp(arg, "fetch"))
    *mirror = MIRROR_FETCH;
  else if (!strcmp(arg, "push"))
    *mirror = MIRROR_PUSH;
  else
    return error(_("unknown mirror argument: %s"), arg);
  return 0;
}

static int add(int argc, const char **argv, const char *prefix)
{
  int fetch = 0, fetch_tags = TAGS_DEFAULT;
  unsigned mirror = MIRROR_NONE;
  struct string_list track = STRING_LIST_INIT_NODUP;
  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_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
    OPT_SET_INT(0, "tags", &fetch_tags,
          N_("import all tags and associated objects when fetching\n"
             "or do not fetch any tag at all (--no-tags)"),
          TAGS_SET),
    OPT_STRING_LIST('t', "track", &track, N_("branch"),
        N_("branch(es) to track")),
    OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
    OPT_CALLBACK_F(0, "mirror", &mirror, "(push|fetch)",
      N_("set up remote as a mirror to push to or fetch from"),
      PARSE_OPT_OPTARG | PARSE_OPT_COMP_ARG, parse_mirror_opt),
    OPT_END()
  };

  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_add_usage, 0);

  if (argc != 2)
    usage_with_options(builtin_remote_add_usage, options);

  if (mirror && master)
    die(_("specifying a master branch makes no sense with --mirror"));
  if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
    die(_("specifying branches to track makes sense only with fetch mirrors"));

  name = argv[0];
  url = argv[1];

  remote = remote_get(name);
  if (remote_is_configured(remote, 1)) {
    error(_("remote %s already exists."), name);
    exit(3);
  }

  if (!valid_remote_name(name))
    die(_("'%s' is not a valid remote name"), name);

  strbuf_addf(&buf, "remote.%s.url", name);
  git_config_set(buf.buf, url);

  if (!mirror || mirror & MIRROR_FETCH) {
    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++) {
      add_branch(buf.buf, track.items[i].string,
           name, mirror, &buf2);
    }
  }

  if (mirror & MIRROR_PUSH) {
    strbuf_reset(&buf);
    strbuf_addf(&buf, "remote.%s.mirror", name);
    git_config_set(buf.buf, "true");
  }

  if (fetch_tags != TAGS_DEFAULT) {
    strbuf_reset(&buf);
    strbuf_addf(&buf, "remote.%s.tagOpt", name);
    git_config_set(buf.buf,
             fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
  }

  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_name;
  struct string_list merge;
  enum rebase_type rebase;
  char *push_remote_name;
};

static struct string_list branch_list = STRING_LIST_INIT_NODUP;

static const char *abbrev_ref(const char *name, const char *prefix)
{
  skip_prefix(name, prefix, &name);
  return name;
}
#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")

static int config_read_branches(const char *key, const char *value,
        const struct config_context *ctx UNUSED,
        void *data UNUSED)
{
  const char *orig_key = key;
  char *name;
  struct string_list_item *item;
  struct branch_info *info;
  enum { REMOTE, MERGE, REBASE, PUSH_REMOTE } type;
  size_t key_len;

  if (!starts_with(key, "branch."))
    return 0;

  key += strlen("branch.");
  if (strip_suffix(key, ".remote", &key_len))
    type = REMOTE;
  else if (strip_suffix(key, ".merge", &key_len))
    type = MERGE;
  else if (strip_suffix(key, ".rebase", &key_len))
    type = REBASE;
  else if (strip_suffix(key, ".pushremote", &key_len))
    type = PUSH_REMOTE;
  else
    return 0;
  name = xmemdupz(key, key_len);

  item = string_list_insert(&branch_list, name);

  if (!item->util)
    item->util = xcalloc(1, sizeof(struct branch_info));
  info = item->util;
  switch (type) {
  case REMOTE:
    if (info->remote_name)
      warning(_("more than one %s"), orig_key);
    info->remote_name = xstrdup(value);
    break;
  case MERGE: {
    char *space = strchr(value, ' ');
    value = abbrev_branch(value);
    while (space) {
      char *merge;
      merge = xstrndup(value, space - value);
      string_list_append(&info->merge, merge);
      value = abbrev_branch(space + 1);
      space = strchr(value, ' ');
    }
    string_list_append(&info->merge, xstrdup(value));
    break;
  }
  case REBASE:
    /*
     * Consider invalid values as false and check the
     * truth value with >= REBASE_TRUE.
     */
    info->rebase = rebase_parse_value(value);
    if (info->rebase == REBASE_INVALID)
      warning(_("unhandled branch.%s.rebase=%s; assuming "
          "'true'"), name, value);
    break;
  case PUSH_REMOTE:
    if (info->push_remote_name)
      warning(_("more than one %s"), orig_key);
    info->push_remote_name = xstrdup(value);
    break;
  default:
    BUG("unexpected type=%d", type);
  }

  return 0;
}

static void read_branches(void)
{
  if (branch_list.nr)
    return;
  git_config(config_read_branches, NULL);
}

struct ref_states {
  struct remote *remote;
  struct string_list new_refs, skipped, stale, tracked, heads, push;
  int queried;
};

#define REF_STATES_INIT { \
  .new_refs = STRING_LIST_INIT_DUP, \
  .skipped = STRING_LIST_INIT_DUP, \
  .stale = STRING_LIST_INIT_DUP, \
  .tracked = STRING_LIST_INIT_DUP, \
  .heads = STRING_LIST_INIT_DUP, \
  .push = STRING_LIST_INIT_DUP, \
}

static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
{
  struct ref *fetch_map = NULL, **tail = &fetch_map;
  struct ref *ref, *stale_refs;
  int i;

  for (i = 0; i < states->remote->fetch.nr; i++)
    if (get_fetch_map(remote_refs, &states->remote->fetch.items[i], &tail, 1))
      die(_("Could not get fetch map for refspec %s"),
        states->remote->fetch.raw[i]);

  for (ref = fetch_map; ref; ref = ref->next) {
    if (omit_name_by_refspec(ref->name, &states->remote->fetch))
      string_list_append(&states->skipped, abbrev_branch(ref->name));
    else if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
      string_list_append(&states->new_refs, abbrev_branch(ref->name));
    else
      string_list_append(&states->tracked, abbrev_branch(ref->name));
  }
  stale_refs = get_stale_heads(&states->remote->fetch, fetch_map);
  for (ref = stale_refs; ref; ref = ref->next) {
    struct string_list_item *item =
      string_list_append(&states->stale, abbrev_branch(ref->name));
    item->util = xstrdup(ref->name);
  }
  free_refs(stale_refs);
  free_refs(fetch_map);

  string_list_sort(&states->new_refs);
  string_list_sort(&states->skipped);
  string_list_sort(&states->tracked);
  string_list_sort(&states->stale);

  return 0;
}

struct push_info {
  char *dest;
  int forced;
  enum {
    PUSH_STATUS_CREATE = 0,
    PUSH_STATUS_DELETE,
    PUSH_STATUS_UPTODATE,
    PUSH_STATUS_FASTFORWARD,
    PUSH_STATUS_OUTOFDATE,
    PUSH_STATUS_NOTQUERIED
  } status;
};

static int get_push_ref_states(const struct ref *remote_refs,
  struct ref_states *states)
{
  struct remote *remote = states->remote;
  struct ref *ref, *local_refs, *push_map;
  if (remote->mirror)
    return 0;

  local_refs = get_local_heads();
  push_map = copy_ref_list(remote_refs);

  match_push_refs(local_refs, &push_map, &remote->push, MATCH_REFS_NONE);

  for (ref = push_map; ref; ref = ref->next) {
    struct string_list_item *item;
    struct push_info *info;

    if (!ref->peer_ref)
      continue;
    oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);

    item = string_list_append(&states->push,
            abbrev_branch(ref->peer_ref->name));
    item->util = xcalloc(1, sizeof(struct push_info));
    info = item->util;
    info->forced = ref->force;
    info->dest = xstrdup(abbrev_branch(ref->name));

    if (is_null_oid(&ref->new_oid)) {
      info->status = PUSH_STATUS_DELETE;
    } else if (oideq(&ref->old_oid, &ref->new_oid))
      info->status = PUSH_STATUS_UPTODATE;
    else if (is_null_oid(&ref->old_oid))
      info->status = PUSH_STATUS_CREATE;
    else if (repo_has_object_file(the_repository, &ref->old_oid) &&
       ref_newer(&ref->new_oid, &ref->old_oid))
      info->status = PUSH_STATUS_FASTFORWARD;
    else
      info->status = PUSH_STATUS_OUTOFDATE;
  }
  free_refs(local_refs);
  free_refs(push_map);
  return 0;
}

static int get_push_ref_states_noquery(struct ref_states *states)
{
  int i;
  struct remote *remote = states->remote;
  struct string_list_item *item;
  struct push_info *info;

  if (remote->mirror)
    return 0;

  if (!remote->push.nr) {
    item = string_list_append(&states->push, _("(matching)"));
    info = item->util = xcalloc(1, sizeof(struct push_info));
    info->status = PUSH_STATUS_NOTQUERIED;
    info->dest = xstrdup(item->string);
  }
  for (i = 0; i < remote->push.nr; i++) {
    const struct refspec_item *spec = &remote->push.items[i];
    if (spec->matching)
      item = string_list_append(&states->push, _("(matching)"));
    else if (strlen(spec->src))
      item = string_list_append(&states->push, spec->src);
    else
      item = string_list_append(&states->push, _("(delete)"));

    info = item->util = xcalloc(1, sizeof(struct push_info));
    info->forced = spec->force;
    info->status = PUSH_STATUS_NOTQUERIED;
    info->dest = xstrdup(spec->dst ? spec->dst : item->string);
  }
  return 0;
}

static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
{
  struct ref *ref, *matches;
  struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
  struct refspec_item refspec;

  memset(&refspec, 0, sizeof(refspec));
  refspec.force = 0;
  refspec.pattern = 1;
  refspec.src = refspec.dst = "refs/heads/*";
  get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
  matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
            fetch_map, 1);
  for (ref = matches; ref; ref = ref->next)
    string_list_append(&states->heads, abbrev_branch(ref->name));

  free_refs(fetch_map);
  free_refs(matches);

  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, *skipped;
  struct known_remotes *keep;
};

static int add_branch_for_removal(const char *refname,
          const struct object_id *oid UNUSED,
          int flags UNUSED, void *cb_data)
{
  struct branches_for_remote *branches = cb_data;
  struct refspec_item refspec;
  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;
  }

  /* don't delete non-remote-tracking refs */
  if (!starts_with(refname, "refs/remotes/")) {
    /* advise user how to delete local branches */
    if (starts_with(refname, "refs/heads/"))
      string_list_append(branches->skipped,
             abbrev_branch(refname));
    /* silently skip over other non-remote refs */
    return 0;
  }

  string_list_append(branches->branches, refname);

  return 0;
}

struct rename_info {
  const char *old_name;
  const char *new_name;
  struct string_list *remote_branches;
  uint32_t symrefs_nr;
};

static int read_remote_branches(const char *refname,
        const struct object_id *oid UNUSED,
        int flags UNUSED, void *cb_data)
{
  struct rename_info *rename = cb_data;
  struct strbuf buf = STRBUF_INIT;
  struct string_list_item *item;
  int flag;
  const char *symref;

  strbuf_addf(&buf, "refs/remotes/%s/", rename->old_name);
  if (starts_with(refname, buf.buf)) {
    item = string_list_append(rename->remote_branches, refname);
    symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
              NULL, &flag);
    if (symref && (flag & REF_ISSYMREF)) {
      item->util = xstrdup(symref);
      rename->symrefs_nr++;
    } else {
      item->util = NULL;
    }
  }
  strbuf_release(&buf);

  return 0;
}

static int migrate_file(struct remote *remote)
{
  struct strbuf buf = STRBUF_INIT;
  int i;

  strbuf_addf(&buf, "remote.%s.url", remote->name);
  for (i = 0; i < remote->url_nr; i++)
    git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
  strbuf_reset(&buf);
  strbuf_addf(&buf, "remote.%s.push", remote->name);
  for (i = 0; i < remote->push.raw_nr; i++)
    git_config_set_multivar(buf.buf, remote->push.raw[i], "^$", 0);
  strbuf_reset(&buf);
  strbuf_addf(&buf, "remote.%s.fetch", remote->name);
  for (i = 0; i < remote->fetch.raw_nr; i++)
    git_config_set_multivar(buf.buf, remote->fetch.raw[i], "^$", 0);
  if (remote->origin == REMOTE_REMOTES)
    unlink_or_warn(git_path("remotes/%s", remote->name));
  else if (remote->origin == REMOTE_BRANCHES)
    unlink_or_warn(git_path("branches/%s", remote->name));
  strbuf_release(&buf);

  return 0;
}

struct push_default_info
{
  const char *old_name;
  enum config_scope scope;
  struct strbuf origin;
  int linenr;
};

static int config_read_push_default(const char *key, const char *value,
  const struct config_context *ctx, void *cb)
{
  const struct key_value_info *kvi = ctx->kvi;

  struct push_default_info* info = cb;
  if (strcmp(key, "remote.pushdefault") ||
      !value || strcmp(value, info->old_name))
    return 0;

  info->scope = kvi->scope;
  strbuf_reset(&info->origin);
  strbuf_addstr(&info->origin, config_origin_type_name(kvi->origin_type));
  info->linenr = kvi->linenr;

  return 0;
}

static void handle_push_default(const char* old_name, const char* new_name)
{
  struct push_default_info push_default = {
    old_name, CONFIG_SCOPE_UNKNOWN, STRBUF_INIT, -1 };
  git_config(config_read_push_default, &push_default);
  if (push_default.scope >= CONFIG_SCOPE_COMMAND)
    ; /* pass */
  else if (push_default.scope >= CONFIG_SCOPE_LOCAL) {
    int result = git_config_set_gently("remote.pushDefault",
               new_name);
    if (new_name && result && result != CONFIG_NOTHING_SET)
      die(_("could not set '%s'"), "remote.pushDefault");
    else if (!new_name && result && result != CONFIG_NOTHING_SET)
      die(_("could not unset '%s'"), "remote.pushDefault");
  } else if (push_default.scope >= CONFIG_SCOPE_SYSTEM) {
    /* warn */
    warning(_("The %s configuration remote.pushDefault in:\n"
        "\t%s:%d\n"
        "now names the non-existent remote '%s'"),
      config_scope_name(push_default.scope),
      push_default.origin.buf, push_default.linenr,
      old_name);
  }
}


static int mv(int argc, const char **argv, const char *prefix)
{
  int show_progress = isatty(2);
  struct option options[] = {
    OPT_BOOL(0, "progress", &show_progress, N_("force progress reporting")),
    OPT_END()
  };
  struct remote *oldremote, *newremote;
  struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
    old_remote_context = STRBUF_INIT;
  struct string_list remote_branches = STRING_LIST_INIT_DUP;
  struct rename_info rename;
  int i, refs_renamed_nr = 0, refspec_updated = 0;
  struct progress *progress = NULL;

  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_rename_usage, 0);

  if (argc != 2)
    usage_with_options(builtin_remote_rename_usage, options);

  rename.old_name = argv[0];
  rename.new_name = argv[1];
  rename.remote_branches = &remote_branches;
  rename.symrefs_nr = 0;

  oldremote = remote_get(rename.old_name);
  if (!remote_is_configured(oldremote, 1)) {
    error(_("No such remote: '%s'"), rename.old_name);
    exit(2);
  }

  if (!strcmp(rename.old_name, rename.new_name) && oldremote->origin != REMOTE_CONFIG)
    return migrate_file(oldremote);

  newremote = remote_get(rename.new_name);
  if (remote_is_configured(newremote, 1)) {
    error(_("remote %s already exists."), rename.new_name);
    exit(3);
  }

  if (!valid_remote_name(rename.new_name))
    die(_("'%s' is not a valid remote name"), rename.new_name);

  strbuf_addf(&buf, "remote.%s", rename.old_name);
  strbuf_addf(&buf2, "remote.%s", rename.new_name);
  if (git_config_rename_section(buf.buf, buf2.buf) < 1)
    return error(_("Could not rename config section '%s' to '%s'"),
        buf.buf, buf2.buf);

  if (oldremote->fetch.raw_nr) {
    strbuf_reset(&buf);
    strbuf_addf(&buf, "remote.%s.fetch", rename.new_name);
    git_config_set_multivar(buf.buf, NULL, NULL, CONFIG_FLAGS_MULTI_REPLACE);
    strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old_name);
    for (i = 0; i < oldremote->fetch.raw_nr; i++) {
      char *ptr;

      strbuf_reset(&buf2);
      strbuf_addstr(&buf2, oldremote->fetch.raw[i]);
      ptr = strstr(buf2.buf, old_remote_context.buf);
      if (ptr) {
        refspec_updated = 1;
        strbuf_splice(&buf2,
                ptr-buf2.buf + strlen(":refs/remotes/"),
                strlen(rename.old_name), rename.new_name,
                strlen(rename.new_name));
      } else
        warning(_("Not updating non-default fetch refspec\n"
            "\t%s\n"
            "\tPlease update the configuration manually if necessary."),
          buf2.buf);

      git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
    }
  }

  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_name && !strcmp(info->remote_name, rename.old_name)) {
      strbuf_reset(&buf);
      strbuf_addf(&buf, "branch.%s.remote", item->string);
      git_config_set(buf.buf, rename.new_name);
    }
    if (info->push_remote_name && !strcmp(info->push_remote_name, rename.old_name)) {
      strbuf_reset(&buf);
      strbuf_addf(&buf, "branch.%s.pushRemote", item->string);
      git_config_set(buf.buf, rename.new_name);
    }
  }

  if (!refspec_updated)
    return 0;

  /*
   * First remove symrefs, then rename the rest, finally create
   * the new symrefs.
   */
  for_each_ref(read_remote_branches, &rename);
  if (show_progress) {
    /*
     * Count symrefs twice, since "renaming" them is done by
     * deleting and recreating them in two separate passes.
     */
    progress = start_progress(_("Renaming remote references"),
            rename.remote_branches->nr + rename.symrefs_nr);
  }
  for (i = 0; i < remote_branches.nr; i++) {
    struct string_list_item *item = remote_branches.items + i;
    struct strbuf referent = STRBUF_INIT;

    if (refs_read_symbolic_ref(get_main_ref_store(the_repository), item->string,
             &referent))
      continue;
    if (delete_ref(NULL, item->string, NULL, REF_NO_DEREF))
      die(_("deleting '%s' failed"), item->string);

    strbuf_release(&referent);
    display_progress(progress, ++refs_renamed_nr);
  }
  for (i = 0; i < remote_branches.nr; i++) {
    struct string_list_item *item = remote_branches.items + i;

    if (item->util)
      continue;
    strbuf_reset(&buf);
    strbuf_addstr(&buf, item->string);
    strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
        rename.new_name, strlen(rename.new_name));
    strbuf_reset(&buf2);
    strbuf_addf(&buf2, "remote: renamed %s to %s",
        item->string, buf.buf);
    if (rename_ref(item->string, buf.buf, buf2.buf))
      die(_("renaming '%s' failed"), item->string);
    display_progress(progress, ++refs_renamed_nr);
  }
  for (i = 0; i < remote_branches.nr; i++) {
    struct string_list_item *item = remote_branches.items + i;

    if (!item->util)
      continue;
    strbuf_reset(&buf);
    strbuf_addstr(&buf, item->string);
    strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
        rename.new_name, strlen(rename.new_name));
    strbuf_reset(&buf2);
    strbuf_addstr(&buf2, item->util);
    strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old_name),
        rename.new_name, strlen(rename.new_name));
    strbuf_reset(&buf3);
    strbuf_addf(&buf3, "remote: renamed %s to %s",
        item->string, buf.buf);
    if (create_symref(buf.buf, buf2.buf, buf3.buf))
      die(_("creating '%s' failed"), buf.buf);
    display_progress(progress, ++refs_renamed_nr);
  }
  stop_progress(&progress);
  string_list_clear(&remote_branches, 1);

  handle_push_default(rename.old_name, rename.new_name);

  return 0;
}

static int rm(int argc, const char **argv, const char *prefix)
{
  struct option options[] = {
    OPT_END()
  };
  struct remote *remote;
  struct strbuf buf = STRBUF_INIT;
  struct known_remotes known_remotes = { NULL, NULL };
  struct string_list branches = STRING_LIST_INIT_DUP;
  struct string_list skipped = STRING_LIST_INIT_DUP;
  struct branches_for_remote cb_data;
  int i, result;

  memset(&cb_data, 0, sizeof(cb_data));
  cb_data.branches = &branches;
  cb_data.skipped = &skipped;
  cb_data.keep = &known_remotes;

  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_rm_usage, 0);
  if (argc != 1)
    usage_with_options(builtin_remote_rm_usage, options);

  remote = remote_get(argv[0]);
  if (!remote_is_configured(remote, 1)) {
    error(_("No such remote: '%s'"), argv[0]);
    exit(2);
  }

  known_remotes.to_delete = remote;
  for_each_remote(add_known_remote, &known_remotes);

  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_name && !strcmp(info->remote_name, 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);
        result = git_config_set_gently(buf.buf, NULL);
        if (result && result != CONFIG_NOTHING_SET)
          die(_("could not unset '%s'"), buf.buf);
      }
    }
    if (info->push_remote_name && !strcmp(info->push_remote_name, remote->name)) {
      strbuf_reset(&buf);
      strbuf_addf(&buf, "branch.%s.pushremote", item->string);
      result = git_config_set_gently(buf.buf, NULL);
      if (result && result != CONFIG_NOTHING_SET)
        die(_("could not unset '%s'"), buf.buf);
    }
  }

  /*
   * 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;
  result = for_each_ref(add_branch_for_removal, &cb_data);
  strbuf_release(&buf);

  if (!result)
    result = delete_refs("remote: remove", &branches, REF_NO_DEREF);
  string_list_clear(&branches, 0);

  if (skipped.nr) {
    fprintf_ln(stderr,
         Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
            "to delete it, use:",
            "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
            "to delete them, use:",
            skipped.nr));
    for (i = 0; i < skipped.nr; i++)
      fprintf(stderr, "  git branch -d %s\n",
        skipped.items[i].string);
  }
  string_list_clear(&skipped, 0);

  if (!result) {
    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);

    handle_push_default(remote->name, NULL);
  }

  return result;
}

static void clear_push_info(void *util, const char *string UNUSED)
{
  struct push_info *info = util;
  free(info->dest);
  free(info);
}

static void free_remote_ref_states(struct ref_states *states)
{
  string_list_clear(&states->new_refs, 0);
  string_list_clear(&states->skipped, 0);
  string_list_clear(&states->stale, 1);
  string_list_clear(&states->tracked, 0);
  string_list_clear(&states->heads, 0);
  string_list_clear_func(&states->push, clear_push_info);
}

static int append_ref_to_tracked_list(const char *refname,
              const struct object_id *oid UNUSED,
              int flags, void *cb_data)
{
  struct ref_states *states = cb_data;
  struct refspec_item refspec;

  if (flags & REF_ISSYMREF)
    return 0;

  memset(&refspec, 0, sizeof(refspec));
  refspec.dst = (char *)refname;
  if (!remote_find_tracking(states->remote, &refspec))
    string_list_append(&states->tracked, abbrev_branch(refspec.src));

  return 0;
}

static int get_remote_ref_states(const char *name,
         struct ref_states *states,
         int query)
{
  states->remote = remote_get(name);
  if (!states->remote)
    return error(_("No such remote: '%s'"), name);

  read_branches();

  if (query) {
    struct transport *transport;
    const struct ref *remote_refs;

    transport = transport_get(states->remote, states->remote->url_nr > 0 ?
      states->remote->url[0] : NULL);
    remote_refs = transport_get_remote_refs(transport, NULL);

    states->queried = 1;
    if (query & GET_REF_STATES)
      get_ref_states(remote_refs, states);
    if (query & GET_HEAD_NAMES)
      get_head_names(remote_refs, states);
    if (query & GET_PUSH_REF_STATES)
      get_push_ref_states(remote_refs, states);
    transport_disconnect(transport);
  } else {
    for_each_ref(append_ref_to_tracked_list, states);
    string_list_sort(&states->tracked);
    get_push_ref_states_noquery(states);
  }

  return 0;
}

struct show_info {
  struct string_list list;
  struct ref_states states;
  int width, width2;
  int any_rebase;
};

#define SHOW_INFO_INIT { \
  .list = STRING_LIST_INIT_DUP, \
  .states = REF_STATES_INIT, \
}

static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
{
  struct show_info *info = cb_data;
  int n = strlen(item->string);
  if (n > info->width)
    info->width = n;
  string_list_insert(&info->list, item->string);
  return 0;
}

static int show_remote_info_item(struct string_list_item *item, void *cb_data)
{
  struct show_info *info = cb_data;
  struct ref_states *states = &info->states;
  const char *name = item->string;

  if (states->queried) {
    const char *fmt = "%s";
    const char *arg = "";
    if (string_list_has_string(&states->new_refs, name)) {
      fmt = _(" new (next fetch will store in remotes/%s)");
      arg = states->remote->name;
    } else if (string_list_has_string(&states->tracked, name))
      arg = _(" tracked");
    else if (string_list_has_string(&states->skipped, name))
      arg = _(" skipped");
    else if (string_list_has_string(&states->stale, name))
      arg = _(" stale (use 'git remote prune' to remove)");
    else
      arg = _(" ???");
    printf("    %-*s", info->width, name);
    printf(fmt, arg);
    printf("\n");
  } else
    printf("    %s\n", name);

  return 0;
}

static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
{
  struct show_info *show_info = cb_data;
  struct ref_states *states = &show_info->states;
  struct branch_info *branch_info = branch_item->util;
  struct string_list_item *item;
  int n;

  if (!branch_info->merge.nr || !branch_info->remote_name ||
      strcmp(states->remote->name, branch_info->remote_name))
    return 0;
  if ((n = strlen(branch_item->string)) > show_info->width)
    show_info->width = n;
  if (branch_info->rebase >= REBASE_TRUE)
    show_info->any_rebase = 1;

  item = string_list_insert(&show_info->list, branch_item->string);
  item->util = branch_info;

  return 0;
}

static int show_local_info_item(struct string_list_item *item, void *cb_data)
{
  struct show_info *show_info = cb_data;
  struct branch_info *branch_info = item->util;
  struct string_list *merge = &branch_info->merge;
  int width = show_info->width + 4;
  int i;

  if (branch_info->rebase >= REBASE_TRUE && branch_info->merge.nr > 1) {
    error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
      item->string);
    return 0;
  }

  printf("    %-*s ", show_info->width, item->string);
  if (branch_info->rebase >= REBASE_TRUE) {
    const char *msg;
    if (branch_info->rebase == REBASE_INTERACTIVE)
      msg = _("rebases interactively onto remote %s");
    else if (branch_info->rebase == REBASE_MERGES)
      msg = _("rebases interactively (with merges) onto "
        "remote %s");
    else
      msg = _("rebases onto remote %s");
    printf_ln(msg, merge->items[0].string);
    return 0;
  } else if (show_info->any_rebase) {
    printf_ln(_(" merges with remote %s"), merge->items[0].string);
    width++;
  } else {
    printf_ln(_("merges with remote %s"), merge->items[0].string);
  }
  for (i = 1; i < merge->nr; i++)
    printf(_("%-*s    and with remote %s\n"), width, "",
           merge->items[i].string);

  return 0;
}

static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
{
  struct show_info *show_info = cb_data;
  struct push_info *push_info = push_item->util;
  struct string_list_item *item;
  int n;
  if ((n = strlen(push_item->string)) > show_info->width)
    show_info->width = n;
  if ((n = strlen(push_info->dest)) > show_info->width2)
    show_info->width2 = n;
  item = string_list_append(&show_info->list, push_item->string);
  item->util = push_item->util;
  return 0;
}

/*
 * Sorting comparison for a string list that has push_info
 * structs in its util field
 */
static int cmp_string_with_push(const void *va, const void *vb)
{
  const struct string_list_item *a = va;
  const struct string_list_item *b = vb;
  const struct push_info *a_push = a->util;
  const struct push_info *b_push = b->util;
  int cmp = strcmp(a->string, b->string);
  return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
}

static int show_push_info_item(struct string_list_item *item, void *cb_data)
{
  struct show_info *show_info = cb_data;
  struct push_info *push_info = item->util;
  const char *src = item->string, *status = NULL;

  switch (push_info->status) {
  case PUSH_STATUS_CREATE:
    status = _("create");
    break;
  case PUSH_STATUS_DELETE:
    status = _("delete");
    src = _("(none)");
    break;
  case PUSH_STATUS_UPTODATE:
    status = _("up to date");
    break;
  case PUSH_STATUS_FASTFORWARD:
    status = _("fast-forwardable");
    break;
  case PUSH_STATUS_OUTOFDATE:
    status = _("local out of date");
    break;
  case PUSH_STATUS_NOTQUERIED:
    break;
  }
  if (status) {
    if (push_info->forced)
      printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
             show_info->width2, push_info->dest, status);
    else
      printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
             show_info->width2, push_info->dest, status);
  } else {
    if (push_info->forced)
      printf_ln(_("    %-*s forces to %s"), show_info->width, src,
             push_info->dest);
    else
      printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
             push_info->dest);
  }
  return 0;
}

static int get_one_entry(struct remote *remote, void *priv)
{
  struct string_list *list = priv;
  struct strbuf remote_info_buf = STRBUF_INIT;
  const char **url;
  int i, url_nr;

  if (remote->url_nr > 0) {
    struct strbuf promisor_config = STRBUF_INIT;
    const char *partial_clone_filter = NULL;

    strbuf_addf(&promisor_config, "remote.%s.partialclonefilter", remote->name);
    strbuf_addf(&remote_info_buf, "%s (fetch)", remote->url[0]);
    if (!git_config_get_string_tmp(promisor_config.buf, &partial_clone_filter))
      strbuf_addf(&remote_info_buf, " [%s]", partial_clone_filter);

    strbuf_release(&promisor_config);
    string_list_append(list, remote->name)->util =
        strbuf_detach(&remote_info_buf, NULL);
  } else
    string_list_append(list, remote->name)->util = NULL;
  if (remote->pushurl_nr) {
    url = remote->pushurl;
    url_nr = remote->pushurl_nr;
  } else {
    url = remote->url;
    url_nr = remote->url_nr;
  }
  for (i = 0; i < url_nr; i++)
  {
    strbuf_addf(&remote_info_buf, "%s (push)", url[i]);
    string_list_append(list, remote->name)->util =
        strbuf_detach(&remote_info_buf, NULL);
  }

  return 0;
}

static int show_all(void)
{
  struct string_list list = STRING_LIST_INIT_DUP;
  int result;

  result = for_each_remote(get_one_entry, &list);

  if (!result) {
    int i;

    string_list_sort(&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);
      }
    }
  }
  string_list_clear(&list, 1);
  return result;
}

static int show(int argc, const char **argv, const char *prefix)
{
  int no_query = 0, result = 0, query_flag = 0;
  struct option options[] = {
    OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
    OPT_END()
  };
  struct show_info info = SHOW_INFO_INIT;

  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_show_usage,
           0);

  if (argc < 1)
    return show_all();

  if (!no_query)
    query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);

  for (; argc; argc--, argv++) {
    int i;
    const char **url;
    int url_nr;

    get_remote_ref_states(*argv, &info.states, query_flag);

    printf_ln(_("* remote %s"), *argv);
    printf_ln(_("  Fetch URL: %s"), info.states.remote->url_nr > 0 ?
           info.states.remote->url[0] : _("(no URL)"));
    if (info.states.remote->pushurl_nr) {
      url = info.states.remote->pushurl;
      url_nr = info.states.remote->pushurl_nr;
    } else {
      url = info.states.remote->url;
      url_nr = info.states.remote->url_nr;
    }
    for (i = 0; i < url_nr; i++)
      /*
       * TRANSLATORS: the colon ':' should align
       * with the one in " Fetch URL: %s"
       * translation.
       */
      printf_ln(_("  Push  URL: %s"), url[i]);
    if (!i)
      printf_ln(_("  Push  URL: %s"), _("(no URL)"));
    if (no_query)
      printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
    else if (!info.states.heads.nr)
      printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
    else if (info.states.heads.nr == 1)
      printf_ln(_("  HEAD branch: %s"), info.states.heads.items[0].string);
    else {
      printf(_("  HEAD branch (remote HEAD is ambiguous,"
         " may be one of the following):\n"));
      for (i = 0; i < info.states.heads.nr; i++)
        printf("    %s\n", info.states.heads.items[i].string);
    }

    /* remote branch info */
    info.width = 0;
    for_each_string_list(&info.states.new_refs, add_remote_to_show_info, &info);
    for_each_string_list(&info.states.skipped, add_remote_to_show_info, &info);
    for_each_string_list(&info.states.tracked, add_remote_to_show_info, &info);
    for_each_string_list(&info.states.stale, add_remote_to_show_info, &info);
    if (info.list.nr)
      printf_ln(Q_("  Remote branch:%s",
             "  Remote branches:%s",
             info.list.nr),
          no_query ? _(" (status not queried)") : "");
    for_each_string_list(&info.list, show_remote_info_item, &info);
    string_list_clear(&info.list, 0);

    /* git pull info */
    info.width = 0;
    info.any_rebase = 0;
    for_each_string_list(&branch_list, add_local_to_show_info, &info);
    if (info.list.nr)
      printf_ln(Q_("  Local branch configured for 'git pull':",
             "  Local branches configured for 'git pull':",
             info.list.nr));
    for_each_string_list(&info.list, show_local_info_item, &info);
    string_list_clear(&info.list, 0);

    /* git push info */
    if (info.states.remote->mirror)
      printf_ln(_("  Local refs will be mirrored by 'git push'"));

    info.width = info.width2 = 0;
    for_each_string_list(&info.states.push, add_push_to_show_info, &info);
    QSORT(info.list.items, info.list.nr, cmp_string_with_push);
    if (info.list.nr)
      printf_ln(Q_("  Local ref configured for 'git push'%s:",
             "  Local refs configured for 'git push'%s:",
             info.list.nr),
          no_query ? _(" (status not queried)") : "");
    for_each_string_list(&info.list, show_push_info_item, &info);
    string_list_clear(&info.list, 0);

    free_remote_ref_states(&info.states);
  }

  return result;
}

static int set_head(int argc, const char **argv, const char *prefix)
{
  int i, opt_a = 0, opt_d = 0, result = 0;
  struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
  char *head_name = NULL;

  struct option options[] = {
    OPT_BOOL('a', "auto", &opt_a,
       N_("set refs/remotes/<name>/HEAD according to remote")),
    OPT_BOOL('d', "delete", &opt_d,
       N_("delete refs/remotes/<name>/HEAD")),
    OPT_END()
  };
  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_sethead_usage, 0);
  if (argc)
    strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);

  if (!opt_a && !opt_d && argc == 2) {
    head_name = xstrdup(argv[1]);
  } else if (opt_a && !opt_d && argc == 1) {
    struct ref_states states = REF_STATES_INIT;
    get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
    if (!states.heads.nr)
      result |= error(_("Cannot determine remote HEAD"));
    else if (states.heads.nr > 1) {
      result |= error(_("Multiple remote HEAD branches. "
            "Please choose one explicitly with:"));
      for (i = 0; i < states.heads.nr; i++)
        fprintf(stderr, "  git remote set-head %s %s\n",
          argv[0], states.heads.items[i].string);
    } else
      head_name = xstrdup(states.heads.items[0].string);
    free_remote_ref_states(&states);
  } else if (opt_d && !opt_a && argc == 1) {
    if (delete_ref(NULL, buf.buf, NULL, REF_NO_DEREF))
      result |= error(_("Could not delete %s"), buf.buf);
  } else
    usage_with_options(builtin_remote_sethead_usage, options);

  if (head_name) {
    strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
    /* make sure it's valid */
    if (!ref_exists(buf2.buf))
      result |= error(_("Not a valid ref: %s"), buf2.buf);
    else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
      result |= error(_("Could not setup %s"), buf.buf);
    else if (opt_a)
      printf("%s/HEAD set to %s\n", argv[0], head_name);
    free(head_name);
  }

  strbuf_release(&buf);
  strbuf_release(&buf2);
  return result;
}

static int prune_remote(const char *remote, int dry_run)
{
  int result = 0;
  struct ref_states states = REF_STATES_INIT;
  struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
  struct string_list_item *item;
  const char *dangling_msg = dry_run
    ? _(" %s will become dangling!")
    : _(" %s has become dangling!");

  get_remote_ref_states(remote, &states, GET_REF_STATES);

  if (!states.stale.nr) {
    free_remote_ref_states(&states);
    return 0;
  }

  printf_ln(_("Pruning %s"), remote);
  printf_ln(_("URL: %s"),
      states.remote->url_nr
      ? states.remote->url[0]
      : _("(no URL)"));

  for_each_string_list_item(item, &states.stale)
    string_list_append(&refs_to_prune, item->util);
  string_list_sort(&refs_to_prune);

  if (!dry_run)
    result |= delete_refs("remote: prune", &refs_to_prune, 0);

  for_each_string_list_item(item, &states.stale) {
    const char *refname = item->util;

    if (dry_run)
      printf_ln(_(" * [would prune] %s"),
             abbrev_ref(refname, "refs/remotes/"));
    else
      printf_ln(_(" * [pruned] %s"),
             abbrev_ref(refname, "refs/remotes/"));
  }

  warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);

  string_list_clear(&refs_to_prune, 0);
  free_remote_ref_states(&states);
  return result;
}

static int prune(int argc, const char **argv, const char *prefix)
{
  int dry_run = 0, result = 0;
  struct option options[] = {
    OPT__DRY_RUN(&dry_run, N_("dry run")),
    OPT_END()
  };

  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_prune_usage, 0);

  if (argc < 1)
    usage_with_options(builtin_remote_prune_usage, options);

  for (; argc; argc--, argv++)
    result |= prune_remote(*argv, dry_run);

  return result;
}

static int get_remote_default(const char *key, const char *value UNUSED,
            const struct config_context *ctx UNUSED,
            void *priv)
{
  if (strcmp(key, "remotes.default") == 0) {
    int *found = priv;
    *found = 1;
  }
  return 0;
}

static int update(int argc, const char **argv, const char *prefix)
{
  int i, prune = -1;
  struct option options[] = {
    OPT_BOOL('p', "prune", &prune,
       N_("prune remotes after fetching")),
    OPT_END()
  };
  struct child_process cmd = CHILD_PROCESS_INIT;
  int default_defined = 0;

  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_update_usage,
           PARSE_OPT_KEEP_ARGV0);

  strvec_push(&cmd.args, "fetch");

  if (prune != -1)
    strvec_push(&cmd.args, prune ? "--prune" : "--no-prune");
  if (verbose)
    strvec_push(&cmd.args, "-v");
  strvec_push(&cmd.args, "--multiple");
  if (argc < 2)
    strvec_push(&cmd.args, "default");
  for (i = 1; i < argc; i++)
    strvec_push(&cmd.args, argv[i]);

  if (strcmp(cmd.args.v[cmd.args.nr-1], "default") == 0) {
    git_config(get_remote_default, &default_defined);
    if (!default_defined) {
      strvec_pop(&cmd.args);
      strvec_push(&cmd.args, "--all");
    }
  }

  cmd.git_cmd = 1;
  return run_command(&cmd);
}

static int remove_all_fetch_refspecs(const char *key)
{
  return git_config_set_multivar_gently(key, NULL, NULL,
                CONFIG_FLAGS_MULTI_REPLACE);
}

static void add_branches(struct remote *remote, const char **branches,
       const char *key)
{
  const char *remotename = remote->name;
  int mirror = remote->mirror;
  struct strbuf refspec = STRBUF_INIT;

  for (; *branches; branches++)
    add_branch(key, *branches, remotename, mirror, &refspec);

  strbuf_release(&refspec);
}

static int set_remote_branches(const char *remotename, const char **branches,
        int add_mode)
{
  struct strbuf key = STRBUF_INIT;
  struct remote *remote;

  strbuf_addf(&key, "remote.%s.fetch", remotename);

  remote = remote_get(remotename);
  if (!remote_is_configured(remote, 1)) {
    error(_("No such remote '%s'"), remotename);
    exit(2);
  }

  if (!add_mode && remove_all_fetch_refspecs(key.buf)) {
    strbuf_release(&key);
    return 1;
  }
  add_branches(remote, branches, key.buf);

  strbuf_release(&key);
  return 0;
}

static int set_branches(int argc, const char **argv, const char *prefix)
{
  int add_mode = 0;
  struct option options[] = {
    OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
    OPT_END()
  };

  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_setbranches_usage, 0);
  if (argc == 0) {
    error(_("no remote specified"));
    usage_with_options(builtin_remote_setbranches_usage, options);
  }
  argv[argc] = NULL;

  return set_remote_branches(argv[0], argv + 1, add_mode);
}

static int get_url(int argc, const char **argv, const char *prefix)
{
  int i, push_mode = 0, all_mode = 0;
  const char *remotename = NULL;
  struct remote *remote;
  const char **url;
  int url_nr;
  struct option options[] = {
    OPT_BOOL('\0', "push", &push_mode,
       N_("query push URLs rather than fetch URLs")),
    OPT_BOOL('\0', "all", &all_mode,
       N_("return all URLs")),
    OPT_END()
  };
  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_geturl_usage, 0);

  if (argc != 1)
    usage_with_options(builtin_remote_geturl_usage, options);

  remotename = argv[0];

  remote = remote_get(remotename);
  if (!remote_is_configured(remote, 1)) {
    error(_("No such remote '%s'"), remotename);
    exit(2);
  }

  url_nr = 0;
  if (push_mode) {
    url = remote->pushurl;
    url_nr = remote->pushurl_nr;
  }
  /* else fetch mode */

  /* Use the fetch URL when no push URLs were found or requested. */
  if (!url_nr) {
    url = remote->url;
    url_nr = remote->url_nr;
  }

  if (!url_nr)
    die(_("no URLs configured for remote '%s'"), remotename);

  if (all_mode) {
    for (i = 0; i < url_nr; i++)
      printf_ln("%s", url[i]);
  } else {
    printf_ln("%s", *url);
  }

  return 0;
}

static int set_url(int argc, const char **argv, const char *prefix)
{
  int i, push_mode = 0, add_mode = 0, delete_mode = 0;
  int matches = 0, negative_matches = 0;
  const char *remotename = NULL;
  const char *newurl = NULL;
  const char *oldurl = NULL;
  struct remote *remote;
  regex_t old_regex;
  const char **urlset;
  int urlset_nr;
  struct strbuf name_buf = STRBUF_INIT;
  struct option options[] = {
    OPT_BOOL('\0', "push", &push_mode,
       N_("manipulate push URLs")),
    OPT_BOOL('\0', "add", &add_mode,
       N_("add URL")),
    OPT_BOOL('\0', "delete", &delete_mode,
          N_("delete URLs")),
    OPT_END()
  };
  argc = parse_options(argc, argv, prefix, options,
           builtin_remote_seturl_usage,
           PARSE_OPT_KEEP_ARGV0);

  if (add_mode && delete_mode)
    die(_("--add --delete doesn't make sense"));

  if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
    usage_with_options(builtin_remote_seturl_usage, options);

  remotename = argv[1];
  newurl = argv[2];
  if (argc > 3)
    oldurl = argv[3];

  if (delete_mode)
    oldurl = newurl;

  remote = remote_get(remotename);
  if (!remote_is_configured(remote, 1)) {
    error(_("No such remote '%s'"), remotename);
    exit(2);
  }

  if (push_mode) {
    strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
    urlset = remote->pushurl;
    urlset_nr = remote->pushurl_nr;
  } else {
    strbuf_addf(&name_buf, "remote.%s.url", remotename);
    urlset = remote->url;
    urlset_nr = remote->url_nr;
  }

  /* Special cases that add new entry. */
  if ((!oldurl && !delete_mode) || add_mode) {
    if (add_mode)
      git_config_set_multivar(name_buf.buf, newurl,
                   "^$", 0);
    else
      git_config_set(name_buf.buf, newurl);
    goto out;
  }

  /* Old URL specified. Demand that one matches. */
  if (regcomp(&old_regex, oldurl, REG_EXTENDED))
    die(_("Invalid old URL pattern: %s"), oldurl);

  for (i = 0; i < urlset_nr; i++)
    if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
      matches++;
    else
      negative_matches++;
  if (!delete_mode && !matches)
    die(_("No such URL found: %s"), oldurl);
  if (delete_mode && !negative_matches && !push_mode)
    die(_("Will not delete all non-push URLs"));

  regfree(&old_regex);

  if (!delete_mode)
    git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
  else
    git_config_set_multivar(name_buf.buf, NULL, oldurl,
          CONFIG_FLAGS_MULTI_REPLACE);
out:
  strbuf_release(&name_buf);
  return 0;
}

int cmd_remote(int argc, const char **argv, const char *prefix)
{
  parse_opt_subcommand_fn *fn = NULL;
  struct option options[] = {
    OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
    OPT_SUBCOMMAND("add", &fn, add),
    OPT_SUBCOMMAND("rename", &fn, mv),
    OPT_SUBCOMMAND_F("rm", &fn, rm, PARSE_OPT_NOCOMPLETE),
    OPT_SUBCOMMAND("remove", &fn, rm),
    OPT_SUBCOMMAND("set-head", &fn, set_head),
    OPT_SUBCOMMAND("set-branches", &fn, set_branches),
    OPT_SUBCOMMAND("get-url", &fn, get_url),
    OPT_SUBCOMMAND("set-url", &fn, set_url),
    OPT_SUBCOMMAND("show", &fn, show),
    OPT_SUBCOMMAND("prune", &fn, prune),
    OPT_SUBCOMMAND("update", &fn, update),
    OPT_END()
  };

  argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
           PARSE_OPT_SUBCOMMAND_OPTIONAL);

  if (fn) {
    return !!fn(argc, argv, prefix);
  } else {
    if (argc) {
      error(_("unknown subcommand: `%s'"), argv[0]);
      usage_with_options(builtin_remote_usage, options);
    }
    return !!show_all();
  }
}

Coverage Report

Created: 2023-11-19 07:08