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99c08d4eb2
Sometimes it's useful to know the main branch of a git repository without actually downloading the repository. This can be done by looking at the symrefs stored in the remote repository. Currently git doesn't provide a simple way to show the symrefs stored on the remote repository, even though the information is available. Add a --symref command line argument to the ls-remote command, which shows the symrefs in the remote repository. While there, replace a literal tab in the format string with \t to make it more obvious to the reader. Suggested-by: pedro rijo <pedrorijo91@gmail.com> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "transport.h"
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#include "remote.h"
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static const char * const ls_remote_usage[] = {
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N_("git ls-remote [--heads] [--tags] [--refs] [--upload-pack=<exec>]\n"
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" [-q | --quiet] [--exit-code] [--get-url]\n"
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" [--symref] [<repository> [<refs>...]]"),
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NULL
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};
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/*
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* Is there one among the list of patterns that match the tail part
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* of the path?
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*/
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static int tail_match(const char **pattern, const char *path)
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{
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const char *p;
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char pathbuf[PATH_MAX];
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if (!pattern)
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return 1; /* no restriction */
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if (snprintf(pathbuf, sizeof(pathbuf), "/%s", path) > sizeof(pathbuf))
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return error("insanely long ref %.*s...", 20, path);
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while ((p = *(pattern++)) != NULL) {
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if (!wildmatch(p, pathbuf, 0, NULL))
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return 1;
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}
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return 0;
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}
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int cmd_ls_remote(int argc, const char **argv, const char *prefix)
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{
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const char *dest = NULL;
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unsigned flags = 0;
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int get_url = 0;
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int quiet = 0;
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int status = 0;
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int show_symref_target = 0;
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const char *uploadpack = NULL;
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const char **pattern = NULL;
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struct remote *remote;
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struct transport *transport;
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const struct ref *ref;
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struct option options[] = {
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OPT__QUIET(&quiet, N_("do not print remote URL")),
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OPT_STRING(0, "upload-pack", &uploadpack, N_("exec"),
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N_("path of git-upload-pack on the remote host")),
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{ OPTION_STRING, 0, "exec", &uploadpack, N_("exec"),
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N_("path of git-upload-pack on the remote host"),
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PARSE_OPT_HIDDEN },
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OPT_BIT('t', "tags", &flags, N_("limit to tags"), REF_TAGS),
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OPT_BIT('h', "heads", &flags, N_("limit to heads"), REF_HEADS),
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OPT_BIT(0, "refs", &flags, N_("do not show peeled tags"), REF_NORMAL),
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OPT_BOOL(0, "get-url", &get_url,
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N_("take url.<base>.insteadOf into account")),
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OPT_SET_INT(0, "exit-code", &status,
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N_("exit with exit code 2 if no matching refs are found"), 2),
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OPT_BOOL(0, "symref", &show_symref_target,
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N_("show underlying ref in addition to the object pointed by it")),
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OPT_END()
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};
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argc = parse_options(argc, argv, prefix, options, ls_remote_usage,
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PARSE_OPT_STOP_AT_NON_OPTION);
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dest = argv[0];
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if (argc > 1) {
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int i;
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pattern = xcalloc(argc, sizeof(const char *));
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for (i = 1; i < argc; i++)
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pattern[i - 1] = xstrfmt("*/%s", argv[i]);
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}
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remote = remote_get(dest);
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if (!remote) {
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if (dest)
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die("bad repository '%s'", dest);
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die("No remote configured to list refs from.");
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}
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if (!remote->url_nr)
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die("remote %s has no configured URL", dest);
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if (get_url) {
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printf("%s\n", *remote->url);
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return 0;
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}
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transport = transport_get(remote, NULL);
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if (uploadpack != NULL)
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transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
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ref = transport_get_remote_refs(transport);
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if (transport_disconnect(transport))
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return 1;
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if (!dest && !quiet)
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fprintf(stderr, "From %s\n", *remote->url);
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for ( ; ref; ref = ref->next) {
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if (!check_ref_type(ref, flags))
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continue;
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if (!tail_match(pattern, ref->name))
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continue;
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if (show_symref_target && ref->symref)
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printf("ref: %s\t%s\n", ref->symref, ref->name);
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printf("%s\t%s\n", oid_to_hex(&ref->old_oid), ref->name);
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status = 0; /* we found something */
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}
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return status;
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}
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