ref-filter: implement %(if), %(then), and %(else) atoms

diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
index cb72fa49deb1bc51acd53e01dc980fbb806c67bd..34891c4b1ad1c53ebc78b18484c7c146659ce68d 100755 (executable)
--- a/t/t0021-conversion.sh
+++ b/t/t0021-conversion.sh
@@ -4,15 +4,17 @@ test_description='blob conversion via gitattributes'
 
 . ./test-lib.sh
 
-TEST_ROOT="$(pwd)"
+TEST_ROOT="$PWD"
+PATH=$TEST_ROOT:$PATH
 
-cat <<EOF >"$TEST_ROOT/rot13.sh"
-#!$SHELL_PATH
+write_script <<\EOF "$TEST_ROOT/rot13.sh"
 tr \
   'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' \
   'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
 EOF
-chmod +x "$TEST_ROOT/rot13.sh"
+
+write_script rot13-filter.pl "$PERL_PATH" \
+       <"$TEST_DIRECTORY"/t0021/rot13-filter.pl
 
 generate_random_characters () {
        LEN=$1
@@ -27,8 +29,7 @@ file_size () {
 
 filter_git () {
        rm -f rot13-filter.log &&
-       git "$@" 2>git-stderr.log &&
-       rm -f git-stderr.log
+       git "$@"
 }
 
 # Compare two files and ensure that `clean` and `smudge` respectively are
@@ -65,7 +66,7 @@ test_cmp_exclude_clean () {
 # is equal to the committed content.
 test_cmp_committed_rot13 () {
        test_cmp "$1" "$2" &&
-       "$TEST_ROOT/rot13.sh" <"$1" >expected &&
+       rot13.sh <"$1" >expected &&
        git cat-file blob :"$2" >actual &&
        test_cmp expected actual
 }
@@ -341,7 +342,7 @@ test_expect_success 'diff does not reuse worktree files that need cleaning' '
 '
 
 test_expect_success PERL 'required process filter should filter data' '
-       test_config_global filter.protocol.process "$TEST_DIRECTORY/t0021/rot13-filter.pl clean smudge" &&
+       test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
        test_config_global filter.protocol.required true &&
        rm -rf repo &&
        mkdir repo &&
@@ -349,10 +350,9 @@ test_expect_success PERL 'required process filter should filter data' '
                cd repo &&
                git init &&
 
-               echo "git-stderr.log" >.gitignore &&
                echo "*.r filter=protocol" >.gitattributes &&
                git add . &&
-               git commit . -m "test commit 1" &&
+               git commit -m "test commit 1" &&
                git branch empty-branch &&
 
                cp "$TEST_ROOT/test.o" test.r &&
@@ -377,7 +377,7 @@ test_expect_success PERL 'required process filter should filter data' '
                EOF
                test_cmp_count expected.log rot13-filter.log &&
 
-               filter_git commit . -m "test commit 2" &&
+               filter_git commit -m "test commit 2" &&
                cat >expected.log <<-EOF &&
                        START
                        init handshake complete
@@ -434,7 +434,7 @@ test_expect_success PERL 'required process filter should filter data' '
 
 test_expect_success PERL 'required process filter takes precedence' '
        test_config_global filter.protocol.clean false &&
-       test_config_global filter.protocol.process "$TEST_DIRECTORY/t0021/rot13-filter.pl clean" &&
+       test_config_global filter.protocol.process "rot13-filter.pl clean" &&
        test_config_global filter.protocol.required true &&
        rm -rf repo &&
        mkdir repo &&
@@ -459,7 +459,7 @@ test_expect_success PERL 'required process filter takes precedence' '
 '
 
 test_expect_success PERL 'required process filter should be used only for "clean" operation only' '
-       test_config_global filter.protocol.process "$TEST_DIRECTORY/t0021/rot13-filter.pl clean" &&
+       test_config_global filter.protocol.process "rot13-filter.pl clean" &&
        rm -rf repo &&
        mkdir repo &&
        (
@@ -494,7 +494,7 @@ test_expect_success PERL 'required process filter should be used only for "clean
 '
 
 test_expect_success PERL 'required process filter should process multiple packets' '
-       test_config_global filter.protocol.process "$TEST_DIRECTORY/t0021/rot13-filter.pl clean smudge" &&
+       test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
        test_config_global filter.protocol.required true &&
 
        rm -rf repo &&
@@ -514,7 +514,7 @@ test_expect_success PERL 'required process filter should process multiple packet
                for FILE in "$TEST_ROOT"/*.file
                do
                        cp "$FILE" . &&
-                       "$TEST_ROOT/rot13.sh" <"$FILE" >"$FILE.rot13"
+                       rot13.sh <"$FILE" >"$FILE.rot13"
                done &&
 
                echo "*.file filter=protocol" >.gitattributes &&
@@ -554,7 +554,7 @@ test_expect_success PERL 'required process filter should process multiple packet
 '
 
 test_expect_success PERL 'required process filter with clean error should fail' '
-       test_config_global filter.protocol.process "$TEST_DIRECTORY/t0021/rot13-filter.pl clean smudge" &&
+       test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
        test_config_global filter.protocol.required true &&
        rm -rf repo &&
        mkdir repo &&
@@ -573,7 +573,7 @@ test_expect_success PERL 'required process filter with clean error should fail'
 '
 
 test_expect_success PERL 'process filter should restart after unexpected write failure' '
-       test_config_global filter.protocol.process "$TEST_DIRECTORY/t0021/rot13-filter.pl clean smudge" &&
+       test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
        rm -rf repo &&
        mkdir repo &&
        (
@@ -617,14 +617,14 @@ test_expect_success PERL 'process filter should restart after unexpected write f
 
                # Smudge failed
                ! test_cmp smudge-write-fail.o smudge-write-fail.r &&
-               "$TEST_ROOT/rot13.sh" <smudge-write-fail.o >expected &&
+               rot13.sh <smudge-write-fail.o >expected &&
                git cat-file blob :smudge-write-fail.r >actual &&
                test_cmp expected actual
        )
 '
 
 test_expect_success PERL 'process filter should not be restarted if it signals an error' '
-       test_config_global filter.protocol.process "$TEST_DIRECTORY/t0021/rot13-filter.pl clean smudge" &&
+       test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
        rm -rf repo &&
        mkdir repo &&
        (
@@ -663,7 +663,7 @@ test_expect_success PERL 'process filter should not be restarted if it signals a
 '
 
 test_expect_success PERL 'process filter abort stops processing of all further files' '
-       test_config_global filter.protocol.process "$TEST_DIRECTORY/t0021/rot13-filter.pl clean smudge" &&
+       test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
        rm -rf repo &&
        mkdir repo &&
        (