$GIT_COMMON_DIR: a new environment variable

diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index dc30a514bf681dde44dea32e671632ef6f0a47a7..ea35a0241c201ac12c29603a21421199dd097600 100755 (executable)
--- a/t/t7800-difftool.sh
+++ b/t/t7800-difftool.sh
@@ -76,6 +76,54 @@ test_expect_success PERL 'difftool forwards arguments to diff' '
        rm for-diff
 '
 
+test_expect_success PERL 'difftool ignores exit code' '
+       test_config difftool.error.cmd false &&
+       git difftool -y -t error branch
+'
+
+test_expect_success PERL 'difftool forwards exit code with --trust-exit-code' '
+       test_config difftool.error.cmd false &&
+       test_must_fail git difftool -y --trust-exit-code -t error branch
+'
+
+test_expect_success PERL 'difftool forwards exit code with --trust-exit-code for built-ins' '
+       test_config difftool.vimdiff.path false &&
+       test_must_fail git difftool -y --trust-exit-code -t vimdiff branch
+'
+
+test_expect_success PERL 'difftool honors difftool.trustExitCode = true' '
+       test_config difftool.error.cmd false &&
+       test_config difftool.trustExitCode true &&
+       test_must_fail git difftool -y -t error branch
+'
+
+test_expect_success PERL 'difftool honors difftool.trustExitCode = false' '
+       test_config difftool.error.cmd false &&
+       test_config difftool.trustExitCode false &&
+       git difftool -y -t error branch
+'
+
+test_expect_success PERL 'difftool ignores exit code with --no-trust-exit-code' '
+       test_config difftool.error.cmd false &&
+       test_config difftool.trustExitCode true &&
+       git difftool -y --no-trust-exit-code -t error branch
+'
+
+test_expect_success PERL 'difftool stops on error with --trust-exit-code' '
+       test_when_finished "rm -f for-diff .git/fail-right-file" &&
+       test_when_finished "git reset -- for-diff" &&
+       write_script .git/fail-right-file <<-\EOF &&
+       echo "$2"
+       exit 1
+       EOF
+       >for-diff &&
+       git add for-diff &&
+       echo file >expect &&
+       test_must_fail git difftool -y --trust-exit-code \
+               --extcmd .git/fail-right-file branch >actual &&
+       test_cmp expect actual
+'
+
 test_expect_success PERL 'difftool honors --gui' '
        difftool_test_setup &&
        test_config merge.tool bogus-tool &&
@@ -301,6 +349,14 @@ test_expect_success PERL 'say no to the second file' '
        ! grep br2 output
 '
 
+test_expect_success PERL 'ending prompt input with EOF' '
+       git difftool -x cat branch </dev/null >output &&
+       ! grep master output &&
+       ! grep branch output &&
+       ! grep m2 output &&
+       ! grep br2 output
+'
+
 test_expect_success PERL 'difftool --tool-help' '
        git difftool --tool-help >output &&
        grep tool output