Add a base implementation of SHA-256 support

diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh
index dc98b4bc6dc7aab41eca38d9e1086ad2b6701fd3..663f17c5fe4757a9eea8c749cf1a158a05f4a8df 100755 (executable)
--- a/t/t1400-update-ref.sh
+++ b/t/t1400-update-ref.sh
@@ -6,7 +6,7 @@
 test_description='Test git update-ref and basic ref logging'
 . ./test-lib.sh
 
-Z=$_z40
+Z=$ZERO_OID
 
 m=refs/heads/master
 n_dir=refs/heads/gu
@@ -346,7 +346,7 @@ test_expect_success "verifying $m's log (logged by config)" '
 
 git update-ref $m $D
 cat >.git/logs/$m <<EOF
-0000000000000000000000000000000000000000 $C $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
+$Z $C $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
 $C $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150350 -0500
 $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 -0500
 $F $Z $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150680 -0500
@@ -390,7 +390,7 @@ test_expect_success 'Query "master@{2005-05-26 23:33:01}" (middle of history wit
        test_when_finished "rm -f o e" &&
        git rev-parse --verify "master@{2005-05-26 23:33:01}" >o 2>e &&
        test $B = $(cat o) &&
-       test "warning: Log for ref $m has gap after $gd." = "$(cat e)"
+       test_i18ngrep -F "warning: log for ref $m has gap after $gd" e
 '
 test_expect_success 'Query "master@{2005-05-26 23:38:00}" (middle of history)' '
        test_when_finished "rm -f o e" &&
@@ -408,7 +408,7 @@ test_expect_success 'Query "master@{2005-05-28}" (past end of history)' '
        test_when_finished "rm -f o e" &&
        git rev-parse --verify "master@{2005-05-28}" >o 2>e &&
        test $D = $(cat o) &&
-       test "warning: Log for ref $m unexpectedly ended on $ld." = "$(cat e)"
+       test_i18ngrep -F "warning: log for ref $m unexpectedly ended on $ld" e
 '
 
 rm -f .git/$m .git/logs/$m expect
@@ -457,6 +457,66 @@ test_expect_success 'git cat-file blob master@{2005-05-26 23:42}:F (expect OTHER
        test OTHER = $(git cat-file blob "master@{2005-05-26 23:42}:F")
 '
 
+# Test adding and deleting pseudorefs
+
+test_expect_success 'given old value for missing pseudoref, do not create' '
+       test_must_fail git update-ref PSEUDOREF $A $B 2>err &&
+       test_path_is_missing .git/PSEUDOREF &&
+       test_i18ngrep "could not read ref" err
+'
+
+test_expect_success 'create pseudoref' '
+       git update-ref PSEUDOREF $A &&
+       test $A = $(cat .git/PSEUDOREF)
+'
+
+test_expect_success 'overwrite pseudoref with no old value given' '
+       git update-ref PSEUDOREF $B &&
+       test $B = $(cat .git/PSEUDOREF)
+'
+
+test_expect_success 'overwrite pseudoref with correct old value' '
+       git update-ref PSEUDOREF $C $B &&
+       test $C = $(cat .git/PSEUDOREF)
+'
+
+test_expect_success 'do not overwrite pseudoref with wrong old value' '
+       test_must_fail git update-ref PSEUDOREF $D $E 2>err &&
+       test $C = $(cat .git/PSEUDOREF) &&
+       test_i18ngrep "unexpected object ID" err
+'
+
+test_expect_success 'delete pseudoref' '
+       git update-ref -d PSEUDOREF &&
+       test_path_is_missing .git/PSEUDOREF
+'
+
+test_expect_success 'do not delete pseudoref with wrong old value' '
+       git update-ref PSEUDOREF $A &&
+       test_must_fail git update-ref -d PSEUDOREF $B 2>err &&
+       test $A = $(cat .git/PSEUDOREF) &&
+       test_i18ngrep "unexpected object ID" err
+'
+
+test_expect_success 'delete pseudoref with correct old value' '
+       git update-ref -d PSEUDOREF $A &&
+       test_path_is_missing .git/PSEUDOREF
+'
+
+test_expect_success 'create pseudoref with old OID zero' '
+       git update-ref PSEUDOREF $A $Z &&
+       test $A = $(cat .git/PSEUDOREF)
+'
+
+test_expect_success 'do not overwrite pseudoref with old OID zero' '
+       test_when_finished git update-ref -d PSEUDOREF &&
+       test_must_fail git update-ref PSEUDOREF $B $Z 2>err &&
+       test $A = $(cat .git/PSEUDOREF) &&
+       test_i18ngrep "already exists" err
+'
+
+# Test --stdin
+
 a=refs/heads/a
 b=refs/heads/b
 c=refs/heads/c
@@ -590,7 +650,7 @@ test_expect_success 'stdin fails with duplicate refs' '
        create $a $m
        EOF
        test_must_fail git update-ref --stdin <stdin 2>err &&
-       grep "fatal: multiple updates for ref '"'"'$a'"'"' not allowed." err
+       test_i18ngrep "fatal: multiple updates for ref '"'"'$a'"'"' not allowed" err
 '
 
 test_expect_success 'stdin create ref works' '
@@ -747,6 +807,37 @@ test_expect_success 'stdin delete symref works option no-deref' '
        test_cmp expect actual
 '
 
+test_expect_success 'stdin update symref works flag --no-deref' '
+       git symbolic-ref TESTSYMREFONE $b &&
+       git symbolic-ref TESTSYMREFTWO $b &&
+       cat >stdin <<-EOF &&
+       update TESTSYMREFONE $a $b
+       update TESTSYMREFTWO $a $b
+       EOF
+       git update-ref --no-deref --stdin <stdin &&
+       git rev-parse TESTSYMREFONE TESTSYMREFTWO >expect &&
+       git rev-parse $a $a >actual &&
+       test_cmp expect actual &&
+       git rev-parse $m~1 >expect &&
+       git rev-parse $b >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'stdin delete symref works flag --no-deref' '
+       git symbolic-ref TESTSYMREFONE $b &&
+       git symbolic-ref TESTSYMREFTWO $b &&
+       cat >stdin <<-EOF &&
+       delete TESTSYMREFONE $b
+       delete TESTSYMREFTWO $b
+       EOF
+       git update-ref --no-deref --stdin <stdin &&
+       test_must_fail git rev-parse --verify -q TESTSYMREFONE &&
+       test_must_fail git rev-parse --verify -q TESTSYMREFTWO &&
+       git rev-parse $m~1 >expect &&
+       git rev-parse $b >actual &&
+       test_cmp expect actual
+'
+
 test_expect_success 'stdin delete ref works with right old value' '
        echo "delete $b $m~1" >stdin &&
        git update-ref --stdin <stdin &&
@@ -992,7 +1083,7 @@ test_expect_success 'stdin -z fails option with unknown name' '
 test_expect_success 'stdin -z fails with duplicate refs' '
        printf $F "create $a" "$m" "create $b" "$m" "create $a" "$m" >stdin &&
        test_must_fail git update-ref -z --stdin <stdin 2>err &&
-       grep "fatal: multiple updates for ref '"'"'$a'"'"' not allowed." err
+       test_i18ngrep "fatal: multiple updates for ref '"'"'$a'"'"' not allowed" err
 '
 
 test_expect_success 'stdin -z create ref works' '
@@ -1223,7 +1314,7 @@ test_expect_success 'fails with duplicate HEAD update' '
        update HEAD $B
        EOF
        test_must_fail git update-ref --stdin <stdin 2>err &&
-       grep "fatal: multiple updates for '\''HEAD'\'' (including one via its referent .refs/heads/target1.) are not allowed" err &&
+       test_i18ngrep "fatal: multiple updates for '\''HEAD'\'' (including one via its referent .refs/heads/target1.) are not allowed" err &&
        echo "refs/heads/target1" >expect &&
        git symbolic-ref HEAD >actual &&
        test_cmp expect actual &&
@@ -1240,7 +1331,7 @@ test_expect_success 'fails with duplicate ref update via symref' '
        update refs/heads/symref2 $B
        EOF
        test_must_fail git update-ref --stdin <stdin 2>err &&
-       grep "fatal: multiple updates for '\''refs/heads/target2'\'' (including one via symref .refs/heads/symref2.) are not allowed" err &&
+       test_i18ngrep "fatal: multiple updates for '\''refs/heads/target2'\'' (including one via symref .refs/heads/symref2.) are not allowed" err &&
        echo "refs/heads/target2" >expect &&
        git symbolic-ref refs/heads/symref2 >actual &&
        test_cmp expect actual &&
@@ -1253,7 +1344,10 @@ run_with_limited_open_files () {
        (ulimit -n 32 && "$@")
 }
 
-test_lazy_prereq ULIMIT_FILE_DESCRIPTORS 'run_with_limited_open_files true'
+test_lazy_prereq ULIMIT_FILE_DESCRIPTORS '
+       test_have_prereq !MINGW,!CYGWIN &&
+       run_with_limited_open_files true
+'
 
 test_expect_success ULIMIT_FILE_DESCRIPTORS 'large transaction creating branches does not burst open file limit' '
 (