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58 lines
1.7 KiB
58 lines
1.7 KiB
#include "cache.h" |
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#include "refs.h" |
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#include "builtin.h" |
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#include "parse-options.h" |
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static const char * const git_update_ref_usage[] = { |
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N_("git update-ref [options] -d <refname> [<oldval>]"), |
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N_("git update-ref [options] <refname> <newval> [<oldval>]"), |
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NULL |
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}; |
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int cmd_update_ref(int argc, const char **argv, const char *prefix) |
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{ |
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const char *refname, *oldval, *msg = NULL; |
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unsigned char sha1[20], oldsha1[20]; |
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int delete = 0, no_deref = 0, flags = 0; |
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struct option options[] = { |
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OPT_STRING( 'm', NULL, &msg, N_("reason"), N_("reason of the update")), |
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OPT_BOOLEAN('d', NULL, &delete, N_("delete the reference")), |
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OPT_BOOLEAN( 0 , "no-deref", &no_deref, |
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N_("update <refname> not the one it points to")), |
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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, git_update_ref_usage, |
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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 || argc > 2) |
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usage_with_options(git_update_ref_usage, options); |
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refname = argv[0]; |
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oldval = argv[1]; |
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} else { |
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const char *value; |
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if (argc < 2 || argc > 3) |
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usage_with_options(git_update_ref_usage, options); |
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refname = argv[0]; |
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value = argv[1]; |
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oldval = argv[2]; |
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if (get_sha1(value, sha1)) |
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die("%s: not a valid SHA1", value); |
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} |
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hashclr(oldsha1); /* all-zero hash in case oldval is the empty string */ |
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if (oldval && *oldval && get_sha1(oldval, oldsha1)) |
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die("%s: not a valid old SHA1", oldval); |
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if (no_deref) |
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flags = REF_NODEREF; |
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if (delete) |
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return delete_ref(refname, oldval ? oldsha1 : NULL, flags); |
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else |
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return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL, |
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flags, DIE_ON_ERR); |
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}
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