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https://github.com/git/git.git
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4beb7a3b06
Updates to symbolic refs can now be made as a part of ref transaction. * kn/ref-transaction-symref: refs: remove `create_symref` and associated dead code refs: rename `refs_create_symref()` to `refs_update_symref()` refs: use transaction in `refs_create_symref()` refs: add support for transactional symref updates refs: move `original_update_refname` to 'refs.c' refs: support symrefs in 'reference-transaction' hook files-backend: extract out `create_symref_lock()` refs: accept symref values in `ref_transaction_update()`
94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
#include "builtin.h"
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#include "config.h"
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#include "gettext.h"
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#include "refs.h"
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#include "parse-options.h"
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#include "strbuf.h"
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static const char * const git_symbolic_ref_usage[] = {
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N_("git symbolic-ref [-m <reason>] <name> <ref>"),
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N_("git symbolic-ref [-q] [--short] [--no-recurse] <name>"),
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N_("git symbolic-ref --delete [-q] <name>"),
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NULL
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};
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static int check_symref(const char *HEAD, int quiet, int shorten, int recurse, int print)
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{
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int resolve_flags, flag;
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const char *refname;
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resolve_flags = (recurse ? 0 : RESOLVE_REF_NO_RECURSE);
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refname = refs_resolve_ref_unsafe(get_main_ref_store(the_repository),
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HEAD, resolve_flags, NULL, &flag);
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if (!refname)
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die("No such ref: %s", HEAD);
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else if (!(flag & REF_ISSYMREF)) {
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if (!quiet)
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die("ref %s is not a symbolic ref", HEAD);
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else
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return 1;
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}
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if (print) {
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char *to_free = NULL;
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if (shorten)
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refname = to_free = refs_shorten_unambiguous_ref(get_main_ref_store(the_repository),
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refname,
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0);
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puts(refname);
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free(to_free);
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}
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return 0;
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}
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int cmd_symbolic_ref(int argc, const char **argv, const char *prefix)
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{
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int quiet = 0, delete = 0, shorten = 0, recurse = 1, ret = 0;
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const char *msg = NULL;
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struct option options[] = {
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OPT__QUIET(&quiet,
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N_("suppress error message for non-symbolic (detached) refs")),
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OPT_BOOL('d', "delete", &delete, N_("delete symbolic ref")),
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OPT_BOOL(0, "short", &shorten, N_("shorten ref output")),
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OPT_BOOL(0, "recurse", &recurse, N_("recursively dereference (default)")),
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OPT_STRING('m', NULL, &msg, N_("reason"), N_("reason of the update")),
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OPT_END(),
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};
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git_config(git_default_config, NULL);
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argc = parse_options(argc, argv, prefix, options,
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git_symbolic_ref_usage, 0);
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if (msg && !*msg)
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die("Refusing to perform update with empty message");
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if (delete) {
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if (argc != 1)
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usage_with_options(git_symbolic_ref_usage, options);
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ret = check_symref(argv[0], 1, 0, 0, 0);
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if (ret)
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die("Cannot delete %s, not a symbolic ref", argv[0]);
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if (!strcmp(argv[0], "HEAD"))
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die("deleting '%s' is not allowed", argv[0]);
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return refs_delete_ref(get_main_ref_store(the_repository),
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NULL, argv[0], NULL, REF_NO_DEREF);
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}
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switch (argc) {
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case 1:
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ret = check_symref(argv[0], quiet, shorten, recurse, 1);
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break;
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case 2:
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if (!strcmp(argv[0], "HEAD") &&
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!starts_with(argv[1], "refs/"))
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die("Refusing to point HEAD outside of refs/");
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if (check_refname_format(argv[1], REFNAME_ALLOW_ONELEVEL) < 0)
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die("Refusing to set '%s' to invalid ref '%s'", argv[0], argv[1]);
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ret = !!refs_update_symref(get_main_ref_store(the_repository),
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argv[0], argv[1], msg);
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break;
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default:
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usage_with_options(git_symbolic_ref_usage, options);
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}
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return ret;
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}
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