strbuf: add strbuf_tolower function

diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index 967359344dab8118dfd55816ef08f4809a9f33ad..58cd5435be59107c3bac323e0d53816ab0f8e4ae 100755 (executable)
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh
@@ -461,7 +461,7 @@ test_expect_success 'new variable inserts into proper section' '
        test_cmp expect .git/config
 '
 
-test_expect_success 'alternative GIT_CONFIG (non-existing file should fail)' '
+test_expect_success 'alternative --file (non-existing file should fail)' '
        test_must_fail git config --file non-existing-config -l
 '
 
@@ -475,15 +475,28 @@ ein.bahn=strasse
 EOF
 
 test_expect_success 'alternative GIT_CONFIG' '
-       GIT_CONFIG=other-config git config -l >output &&
+       GIT_CONFIG=other-config git config --list >output &&
        test_cmp expect output
 '
 
 test_expect_success 'alternative GIT_CONFIG (--file)' '
-       git config --file other-config -l > output &&
+       git config --file other-config --list >output &&
        test_cmp expect output
 '
 
+test_expect_success 'alternative GIT_CONFIG (--file=-)' '
+       git config --file - --list <other-config >output &&
+       test_cmp expect output
+'
+
+test_expect_success 'setting a value in stdin is an error' '
+       test_must_fail git config --file - some.value foo
+'
+
+test_expect_success 'editing stdin is an error' '
+       test_must_fail git config --file - --edit
+'
+
 test_expect_success 'refer config from subdirectory' '
        mkdir x &&
        (
@@ -495,10 +508,10 @@ test_expect_success 'refer config from subdirectory' '
 
 '
 
-test_expect_success 'refer config from subdirectory via GIT_CONFIG' '
+test_expect_success 'refer config from subdirectory via --file' '
        (
                cd x &&
-               GIT_CONFIG=../other-config git config --get ein.bahn >actual &&
+               git config --file=../other-config --get ein.bahn >actual &&
                test_cmp expect actual
        )
 '
@@ -510,8 +523,8 @@ cat > expect << EOF
        park = ausweis
 EOF
 
-test_expect_success '--set in alternative GIT_CONFIG' '
-       GIT_CONFIG=other-config git config anwohner.park ausweis &&
+test_expect_success '--set in alternative file' '
+       git config --file=other-config anwohner.park ausweis &&
        test_cmp expect other-config
 '
 
@@ -942,11 +955,11 @@ test_expect_success 'inner whitespace kept verbatim' '
 
 test_expect_success SYMLINKS 'symlinked configuration' '
        ln -s notyet myconfig &&
-       GIT_CONFIG=myconfig git config test.frotz nitfol &&
+       git config --file=myconfig test.frotz nitfol &&
        test -h myconfig &&
        test -f notyet &&
-       test "z$(GIT_CONFIG=notyet git config test.frotz)" = znitfol &&
-       GIT_CONFIG=myconfig git config test.xyzzy rezrov &&
+       test "z$(git config --file=notyet test.frotz)" = znitfol &&
+       git config --file=myconfig test.xyzzy rezrov &&
        test -h myconfig &&
        test -f notyet &&
        cat >expect <<-\EOF &&
@@ -954,31 +967,22 @@ test_expect_success SYMLINKS 'symlinked configuration' '
        rezrov
        EOF
        {
-               GIT_CONFIG=notyet git config test.frotz &&
-               GIT_CONFIG=notyet git config test.xyzzy
+               git config --file=notyet test.frotz &&
+               git config --file=notyet test.xyzzy
        } >actual &&
        test_cmp expect actual
 '
 
 test_expect_success 'nonexistent configuration' '
-       (
-               GIT_CONFIG=doesnotexist &&
-               export GIT_CONFIG &&
-               test_must_fail git config --list &&
-               test_must_fail git config test.xyzzy
-       )
+       test_must_fail git config --file=doesnotexist --list &&
+       test_must_fail git config --file=doesnotexist test.xyzzy
 '
 
 test_expect_success SYMLINKS 'symlink to nonexistent configuration' '
        ln -s doesnotexist linktonada &&
        ln -s linktonada linktolinktonada &&
-       (
-               GIT_CONFIG=linktonada &&
-               export GIT_CONFIG &&
-               test_must_fail git config --list &&
-               GIT_CONFIG=linktolinktonada &&
-               test_must_fail git config --list
-       )
+       test_must_fail git config --file=linktonada --list &&
+       test_must_fail git config --file=linktolinktonada --list
 '
 
 test_expect_success 'check split_cmdline return' "