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authorLibravatar Junio C Hamano <gitster@pobox.com>2008-06-22 14:31:57 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2008-06-22 14:31:57 -0700
commit66915b5d7cc9b66bf8c452bb62c67da371c21d90 (patch)
tree44a4f9b55c19a4c7d5334f736d0276481a8aae74
parentMerge branch 'jn/web' (diff)
parentMake old sha1 optional with git update-ref -d (diff)
downloadtgif-66915b5d7cc9b66bf8c452bb62c67da371c21d90.tar.xz
Merge branch 'kh/update-ref'
* kh/update-ref: Make old sha1 optional with git update-ref -d Clean up builtin-update-ref's option parsing
-rw-r--r--Documentation/git-update-ref.txt2
-rw-r--r--builtin-update-ref.c36
-rwxr-xr-xt/t1400-update-ref.sh8
3 files changed, 29 insertions, 17 deletions
diff --git a/Documentation/git-update-ref.txt b/Documentation/git-update-ref.txt
index 7f7e3d197b..bae2c8b7ec 100644
--- a/Documentation/git-update-ref.txt
+++ b/Documentation/git-update-ref.txt
@@ -7,7 +7,7 @@ git-update-ref - Update the object name stored in a ref safely
SYNOPSIS
--------
-'git-update-ref' [-m <reason>] (-d <ref> <oldvalue> | [--no-deref] <ref> <newvalue> [<oldvalue>])
+'git-update-ref' [-m <reason>] (-d <ref> [<oldvalue>] | [--no-deref] <ref> <newvalue> [<oldvalue>])
DESCRIPTION
-----------
diff --git a/builtin-update-ref.c b/builtin-update-ref.c
index 93c127196d..d90d11d2e3 100644
--- a/builtin-update-ref.c
+++ b/builtin-update-ref.c
@@ -4,14 +4,14 @@
#include "parse-options.h"
static const char * const git_update_ref_usage[] = {
- "git-update-ref [options] -d <refname> <oldval>",
+ "git-update-ref [options] -d <refname> [<oldval>]",
"git-update-ref [options] <refname> <newval> [<oldval>]",
NULL
};
int cmd_update_ref(int argc, const char **argv, const char *prefix)
{
- const char *refname, *value, *oldval, *msg=NULL;
+ const char *refname, *oldval, *msg=NULL;
unsigned char sha1[20], oldsha1[20];
int delete = 0, no_deref = 0;
struct option options[] = {
@@ -27,25 +27,29 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
if (msg && !*msg)
die("Refusing to perform update with empty message.");
- if (argc < 2 || argc > 3)
- usage_with_options(git_update_ref_usage, options);
- refname = argv[0];
- value = argv[1];
- oldval = argv[2];
-
- if (get_sha1(value, sha1))
- die("%s: not a valid SHA1", value);
-
if (delete) {
- if (oldval)
+ if (argc < 1 || argc > 2)
+ usage_with_options(git_update_ref_usage, options);
+ refname = argv[0];
+ oldval = argv[1];
+ } else {
+ const char *value;
+ if (argc < 2 || argc > 3)
usage_with_options(git_update_ref_usage, options);
- return delete_ref(refname, sha1);
+ refname = argv[0];
+ value = argv[1];
+ oldval = argv[2];
+ if (get_sha1(value, sha1))
+ die("%s: not a valid SHA1", value);
}
- hashclr(oldsha1);
+ hashclr(oldsha1); /* all-zero hash in case oldval is the empty string */
if (oldval && *oldval && get_sha1(oldval, oldsha1))
die("%s: not a valid old SHA1", oldval);
- return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL,
- no_deref ? REF_NODEREF : 0, DIE_ON_ERR);
+ if (delete)
+ return delete_ref(refname, oldval ? oldsha1 : NULL);
+ else
+ return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL,
+ no_deref ? REF_NODEREF : 0, DIE_ON_ERR);
}
diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh
index b8b7ab4103..f387d46f1a 100755
--- a/t/t1400-update-ref.sh
+++ b/t/t1400-update-ref.sh
@@ -42,6 +42,14 @@ test_expect_success "delete $m" '
'
rm -f .git/$m
+test_expect_success "delete $m without oldvalue verification" "
+ git update-ref $m $A &&
+ test $A = \$(cat .git/$m) &&
+ git update-ref -d $m &&
+ ! test -f .git/$m
+"
+rm -f .git/$m
+
test_expect_success \
"fail to create $n" \
"touch .git/$n_dir