t/Makefile: add a rule to re-run previously-failed tests

diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
index dfde2254918be3aab5aa701248f6fe8cae2e5f14..161f5604464d2f963e60af54eedea3f91be041fa 100755 (executable)
--- a/t/t0021-conversion.sh
+++ b/t/t0021-conversion.sh
@@ -4,7 +4,8 @@ test_description='blob conversion via gitattributes'
 
 . ./test-lib.sh
 
-TEST_ROOT="$(pwd)"
+TEST_ROOT="$PWD"
+PATH=$TEST_ROOT:$PATH
 
 write_script <<\EOF "$TEST_ROOT/rot13.sh"
 tr \
@@ -12,6 +13,9 @@ tr \
   'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
 EOF
 
+write_script rot13-filter.pl "$PERL_PATH" \
+       <"$TEST_DIRECTORY"/t0021/rot13-filter.pl
+
 generate_random_characters () {
        LEN=$1
        NAME=$2
@@ -20,13 +24,12 @@ generate_random_characters () {
 }
 
 file_size () {
-       cat "$1" | wc -c | sed "s/^[ ]*//"
+       perl -e 'print -s $ARGV[0]' "$1"
 }
 
 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
@@ -38,10 +41,9 @@ test_cmp_count () {
        actual=$2
        for FILE in "$expect" "$actual"
        do
-               sort "$FILE" | uniq -c | sed "s/^[ ]*//" |
-                       sed "s/^\([0-9]\) IN: clean/x IN: clean/" |
-                       sed "s/^\([0-9]\) IN: smudge/x IN: smudge/" >"$FILE.tmp" &&
-               mv "$FILE.tmp" "$FILE"
+               sort "$FILE" | uniq -c |
+               sed -e "s/^ *[0-9][0-9]*[       ]*IN: /x IN: /" >"$FILE.tmp" &&
+               mv "$FILE.tmp" "$FILE" || return
        done &&
        test_cmp "$expect" "$actual"
 }
@@ -64,7 +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
 }
@@ -91,7 +93,7 @@ test_expect_success setup '
        git checkout -- test test.t test.i &&
 
        echo "content-test2" >test2.o &&
-       echo "content-test3 - filename with special characters" >"test3 '\''sq'\'',\$x.o"
+       echo "content-test3 - filename with special characters" >"test3 '\''sq'\'',\$x=.o"
 '
 
 script='s/^\$Id: \([0-9a-f]*\) \$/\1/p'
@@ -340,7 +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 &&
@@ -348,21 +350,20 @@ 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 "$TEST_ROOT/test.o" test.r &&
                cp "$TEST_ROOT/test2.o" test2.r &&
                mkdir testsubdir &&
-               cp "$TEST_ROOT/test3 '\''sq'\'',\$x.o" "testsubdir/test3 '\''sq'\'',\$x.r" &&
+               cp "$TEST_ROOT/test3 '\''sq'\'',\$x=.o" "testsubdir/test3 '\''sq'\'',\$x=.r" &&
                >test4-empty.r &&
 
                S=$(file_size test.r) &&
                S2=$(file_size test2.r) &&
-               S3=$(file_size "testsubdir/test3 '\''sq'\'',\$x.r") &&
+               S3=$(file_size "testsubdir/test3 '\''sq'\'',\$x=.r") &&
 
                filter_git add . &&
                cat >expected.log <<-EOF &&
@@ -371,35 +372,20 @@ test_expect_success PERL 'required process filter should filter data' '
                        IN: clean test.r $S [OK] -- OUT: $S . [OK]
                        IN: clean test2.r $S2 [OK] -- OUT: $S2 . [OK]
                        IN: clean test4-empty.r 0 [OK] -- OUT: 0  [OK]
-                       IN: clean testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
-                       STOP
-               EOF
-               test_cmp_count expected.log rot13-filter.log &&
-
-               filter_git commit . -m "test commit 2" &&
-               cat >expected.log <<-EOF &&
-                       START
-                       init handshake complete
-                       IN: clean test.r $S [OK] -- OUT: $S . [OK]
-                       IN: clean test2.r $S2 [OK] -- OUT: $S2 . [OK]
-                       IN: clean test4-empty.r 0 [OK] -- OUT: 0  [OK]
-                       IN: clean testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
-                       IN: clean test.r $S [OK] -- OUT: $S . [OK]
-                       IN: clean test2.r $S2 [OK] -- OUT: $S2 . [OK]
-                       IN: clean test4-empty.r 0 [OK] -- OUT: 0  [OK]
-                       IN: clean testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
+                       IN: clean testsubdir/test3 '\''sq'\'',\$x=.r $S3 [OK] -- OUT: $S3 . [OK]
                        STOP
                EOF
                test_cmp_count expected.log rot13-filter.log &&
 
-               rm -f test2.r "testsubdir/test3 '\''sq'\'',\$x.r" &&
+               git commit -m "test commit 2" &&
+               rm -f test2.r "testsubdir/test3 '\''sq'\'',\$x=.r" &&
 
                filter_git checkout --quiet --no-progress . &&
                cat >expected.log <<-EOF &&
                        START
                        init handshake complete
                        IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
-                       IN: smudge testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
+                       IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $S3 [OK] -- OUT: $S3 . [OK]
                        STOP
                EOF
                test_cmp_exclude_clean expected.log rot13-filter.log &&
@@ -420,20 +406,20 @@ test_expect_success PERL 'required process filter should filter data' '
                        IN: smudge test.r $S [OK] -- OUT: $S . [OK]
                        IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
                        IN: smudge test4-empty.r 0 [OK] -- OUT: 0  [OK]
-                       IN: smudge testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
+                       IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $S3 [OK] -- OUT: $S3 . [OK]
                        STOP
                EOF
                test_cmp_exclude_clean expected.log rot13-filter.log &&
 
                test_cmp_committed_rot13 "$TEST_ROOT/test.o" test.r &&
                test_cmp_committed_rot13 "$TEST_ROOT/test2.o" test2.r &&
-               test_cmp_committed_rot13 "$TEST_ROOT/test3 '\''sq'\'',\$x.o" "testsubdir/test3 '\''sq'\'',\$x.r"
+               test_cmp_committed_rot13 "$TEST_ROOT/test3 '\''sq'\'',\$x=.o" "testsubdir/test3 '\''sq'\'',\$x=.r"
        )
 '
 
 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 &&
@@ -458,7 +444,7 @@ 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 &&
        (
@@ -493,7 +479,7 @@ 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 &&
@@ -513,7 +499,7 @@ 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 &&
@@ -553,7 +539,7 @@ 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 &&
@@ -572,7 +558,7 @@ 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 &&
        (
@@ -616,14 +602,14 @@ 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 &&
        (
@@ -662,7 +648,7 @@ 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 &&
        (