921 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
			
		
		
	
	
			921 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
#!/bin/sh
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#
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# Copyright (c) 2009, 2010, 2012, 2013 David Aguilar
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#
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test_description='git-difftool
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Testing basic diff tool invocation
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'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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. ./test-lib.sh
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difftool_test_setup ()
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{
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	test_config diff.tool test-tool &&
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	test_config difftool.test-tool.cmd 'cat "$LOCAL"' &&
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	test_config difftool.bogus-tool.cmd false
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}
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prompt_given ()
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{
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	prompt="$1"
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	test "$prompt" = "Launch 'test-tool' [Y/n]? branch"
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}
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test_expect_success 'basic usage requires no repo' '
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	test_expect_code 129 git difftool -h >output &&
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	test_i18ngrep ^usage: output &&
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	# create a ceiling directory to prevent Git from finding a repo
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	mkdir -p not/repo &&
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	test_when_finished rm -r not &&
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	test_expect_code 129 \
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	env GIT_CEILING_DIRECTORIES="$(pwd)/not" \
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	git -C not/repo difftool -h >output &&
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	test_i18ngrep ^usage: output
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'
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# Create a file on main and change it on branch
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test_expect_success 'setup' '
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	echo main >file &&
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	git add file &&
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	git commit -m "added file" &&
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	git checkout -b branch main &&
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	echo branch >file &&
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	git commit -a -m "branch changed file" &&
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	git checkout main
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'
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# Configure a custom difftool.<tool>.cmd and use it
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test_expect_success 'custom commands' '
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	difftool_test_setup &&
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	test_config difftool.test-tool.cmd "cat \"\$REMOTE\"" &&
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	echo main >expect &&
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	git difftool --no-prompt branch >actual &&
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	test_cmp expect actual &&
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	test_config difftool.test-tool.cmd "cat \"\$LOCAL\"" &&
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	echo branch >expect &&
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	git difftool --no-prompt branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'custom tool commands override built-ins' '
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	test_config difftool.vimdiff.cmd "cat \"\$REMOTE\"" &&
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	echo main >expect &&
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	git difftool --tool vimdiff --no-prompt branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'difftool ignores bad --tool values' '
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	: >expect &&
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	test_must_fail \
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		git difftool --no-prompt --tool=bad-tool branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'difftool forwards arguments to diff' '
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	difftool_test_setup &&
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	>for-diff &&
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	git add for-diff &&
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	echo changes>for-diff &&
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	git add for-diff &&
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	: >expect &&
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	git difftool --cached --no-prompt -- for-diff >actual &&
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	test_cmp expect actual &&
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	git reset -- for-diff &&
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	rm for-diff
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'
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test_expect_success 'difftool ignores exit code' '
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	test_config difftool.error.cmd false &&
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	git difftool -y -t error branch
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'
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test_expect_success 'difftool forwards exit code with --trust-exit-code' '
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	test_config difftool.error.cmd false &&
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	test_must_fail git difftool -y --trust-exit-code -t error branch
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'
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test_expect_success 'difftool forwards exit code with --trust-exit-code for built-ins' '
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	test_config difftool.vimdiff.path false &&
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	test_must_fail git difftool -y --trust-exit-code -t vimdiff branch
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'
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test_expect_success 'difftool honors difftool.trustExitCode = true' '
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	test_config difftool.error.cmd false &&
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	test_config difftool.trustExitCode true &&
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	test_must_fail git difftool -y -t error branch
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'
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test_expect_success 'difftool honors difftool.trustExitCode = false' '
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	test_config difftool.error.cmd false &&
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	test_config difftool.trustExitCode false &&
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	git difftool -y -t error branch
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'
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test_expect_success 'difftool ignores exit code with --no-trust-exit-code' '
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	test_config difftool.error.cmd false &&
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	test_config difftool.trustExitCode true &&
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	git difftool -y --no-trust-exit-code -t error branch
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'
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test_expect_success 'difftool stops on error with --trust-exit-code' '
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	test_when_finished "rm -f for-diff .git/fail-right-file" &&
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	test_when_finished "git reset -- for-diff" &&
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	write_script .git/fail-right-file <<-\EOF &&
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	echo failed
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	exit 1
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	EOF
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	>for-diff &&
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	git add for-diff &&
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	test_must_fail git difftool -y --trust-exit-code \
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		--extcmd .git/fail-right-file branch >actual &&
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	test_line_count = 1 actual
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'
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test_expect_success 'difftool honors exit status if command not found' '
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	test_config difftool.nonexistent.cmd i-dont-exist &&
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	test_config difftool.trustExitCode false &&
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	test_must_fail git difftool -y -t nonexistent branch
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'
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test_expect_success 'difftool honors --gui' '
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	difftool_test_setup &&
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	test_config merge.tool bogus-tool &&
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	test_config diff.tool bogus-tool &&
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	test_config diff.guitool test-tool &&
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	echo branch >expect &&
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	git difftool --no-prompt --gui branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'difftool with guiDefault auto selects gui tool when there is DISPLAY' '
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	difftool_test_setup &&
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	test_config merge.tool bogus-tool &&
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	test_config diff.tool bogus-tool &&
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	test_config diff.guitool test-tool &&
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	test_config difftool.guiDefault auto &&
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	DISPLAY=SOMETHING && export DISPLAY &&
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	echo branch >expect &&
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	git difftool --no-prompt branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'difftool with guiDefault auto selects regular tool when no DISPLAY' '
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	difftool_test_setup &&
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	test_config diff.guitool bogus-tool &&
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	test_config diff.tool test-tool &&
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	test_config difftool.guiDefault Auto &&
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	DISPLAY= && export DISPLAY &&
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	echo branch >expect &&
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	git difftool --no-prompt branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'difftool with guiDefault true selects gui tool' '
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	difftool_test_setup &&
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	test_config diff.tool bogus-tool &&
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	test_config diff.guitool test-tool &&
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	test_config difftool.guiDefault true &&
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	DISPLAY= && export DISPLAY &&
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	echo branch >expect &&
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	git difftool --no-prompt branch >actual &&
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	test_cmp expect actual &&
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	DISPLAY=Something && export DISPLAY &&
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	echo branch >expect &&
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	git difftool --no-prompt branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'difftool --no-gui trumps config guiDefault' '
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	difftool_test_setup &&
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	test_config diff.guitool bogus-tool &&
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	test_config diff.tool test-tool &&
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	test_config difftool.guiDefault true &&
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	echo branch >expect &&
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	git difftool --no-prompt --no-gui branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'difftool --gui last setting wins' '
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	difftool_test_setup &&
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	: >expect &&
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	git difftool --no-prompt --gui --no-gui >actual &&
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	test_cmp expect actual &&
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	test_config merge.tool bogus-tool &&
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	test_config diff.tool bogus-tool &&
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	test_config diff.guitool test-tool &&
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	echo branch >expect &&
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	git difftool --no-prompt --no-gui --gui branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'difftool --gui works without configured diff.guitool' '
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	difftool_test_setup &&
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	echo branch >expect &&
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	git difftool --no-prompt --gui branch >actual &&
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	test_cmp expect actual
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'
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# Specify the diff tool using $GIT_DIFF_TOOL
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test_expect_success 'GIT_DIFF_TOOL variable' '
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	difftool_test_setup &&
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	git config --unset diff.tool &&
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	echo branch >expect &&
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	GIT_DIFF_TOOL=test-tool git difftool --no-prompt branch >actual &&
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	test_cmp expect actual
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'
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# Test the $GIT_*_TOOL variables and ensure
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# that $GIT_DIFF_TOOL always wins unless --tool is specified
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test_expect_success 'GIT_DIFF_TOOL overrides' '
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	difftool_test_setup &&
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	test_config diff.tool bogus-tool &&
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	test_config merge.tool bogus-tool &&
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	echo branch >expect &&
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	GIT_DIFF_TOOL=test-tool git difftool --no-prompt branch >actual &&
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	test_cmp expect actual &&
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	test_config diff.tool bogus-tool &&
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	test_config merge.tool bogus-tool &&
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	GIT_DIFF_TOOL=bogus-tool \
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		git difftool --no-prompt --tool=test-tool branch >actual &&
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	test_cmp expect actual
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'
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# Test that we don't have to pass --no-prompt to difftool
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# when $GIT_DIFFTOOL_NO_PROMPT is true
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test_expect_success 'GIT_DIFFTOOL_NO_PROMPT variable' '
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	difftool_test_setup &&
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	echo branch >expect &&
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	GIT_DIFFTOOL_NO_PROMPT=true git difftool branch >actual &&
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	test_cmp expect actual
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'
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# git-difftool supports the difftool.prompt variable.
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# Test that GIT_DIFFTOOL_PROMPT can override difftool.prompt = false
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test_expect_success 'GIT_DIFFTOOL_PROMPT variable' '
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	difftool_test_setup &&
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	test_config difftool.prompt false &&
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	echo >input &&
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	GIT_DIFFTOOL_PROMPT=true git difftool branch <input >output &&
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	prompt=$(tail -1 <output) &&
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	prompt_given "$prompt"
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'
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# Test that we don't have to pass --no-prompt when difftool.prompt is false
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test_expect_success 'difftool.prompt config variable is false' '
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	difftool_test_setup &&
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	test_config difftool.prompt false &&
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	echo branch >expect &&
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	git difftool branch >actual &&
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	test_cmp expect actual
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'
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# Test that we don't have to pass --no-prompt when mergetool.prompt is false
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test_expect_success 'difftool merge.prompt = false' '
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	difftool_test_setup &&
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	test_might_fail git config --unset difftool.prompt &&
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	test_config mergetool.prompt false &&
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	echo branch >expect &&
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	git difftool branch >actual &&
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	test_cmp expect actual
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'
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# Test that the -y flag can override difftool.prompt = true
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test_expect_success 'difftool.prompt can overridden with -y' '
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	difftool_test_setup &&
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	test_config difftool.prompt true &&
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	echo branch >expect &&
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	git difftool -y branch >actual &&
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	test_cmp expect actual
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'
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# Test that the --prompt flag can override difftool.prompt = false
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test_expect_success 'difftool.prompt can overridden with --prompt' '
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	difftool_test_setup &&
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	test_config difftool.prompt false &&
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	echo >input &&
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	git difftool --prompt branch <input >output &&
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	prompt=$(tail -1 <output) &&
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	prompt_given "$prompt"
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'
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# Test that the last flag passed on the command-line wins
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test_expect_success 'difftool last flag wins' '
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	difftool_test_setup &&
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	echo branch >expect &&
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	git difftool --prompt --no-prompt branch >actual &&
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	test_cmp expect actual &&
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	echo >input &&
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	git difftool --no-prompt --prompt branch <input >output &&
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	prompt=$(tail -1 <output) &&
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	prompt_given "$prompt"
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'
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# git-difftool falls back to git-mergetool config variables
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# so test that behavior here
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test_expect_success 'difftool + mergetool config variables' '
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	test_config merge.tool test-tool &&
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	test_config mergetool.test-tool.cmd "cat \$LOCAL" &&
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	echo branch >expect &&
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	git difftool --no-prompt branch >actual &&
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	test_cmp expect actual &&
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	git difftool --gui --no-prompt branch >actual &&
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	test_cmp expect actual &&
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	# set merge.tool to something bogus, diff.tool to test-tool
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	test_config merge.tool bogus-tool &&
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	test_config diff.tool test-tool &&
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	git difftool --no-prompt branch >actual &&
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	test_cmp expect actual &&
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	git difftool --gui --no-prompt branch >actual &&
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	test_cmp expect actual &&
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	# set merge.tool, diff.tool to something bogus, merge.guitool to test-tool
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	test_config diff.tool bogus-tool &&
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	test_config merge.guitool test-tool &&
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	git difftool --gui --no-prompt branch >actual &&
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	test_cmp expect actual &&
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	# set merge.tool, diff.tool, merge.guitool to something bogus, diff.guitool to test-tool
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	test_config merge.guitool bogus-tool &&
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	test_config diff.guitool test-tool &&
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	git difftool --gui --no-prompt branch >actual &&
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	test_cmp expect actual
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'
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test_expect_success 'difftool.<tool>.path' '
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	test_config difftool.tkdiff.path echo &&
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	git difftool --tool=tkdiff --no-prompt branch >output &&
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	grep file output >grep-output &&
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	test_line_count = 1 grep-output
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'
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 | 
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test_expect_success 'difftool --extcmd=cat' '
 | 
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	echo branch >expect &&
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	echo main >>expect &&
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	git difftool --no-prompt --extcmd=cat branch >actual &&
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	test_cmp expect actual
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'
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 | 
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test_expect_success 'difftool --extcmd cat' '
 | 
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	echo branch >expect &&
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	echo main >>expect &&
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	git difftool --no-prompt --extcmd=cat branch >actual &&
 | 
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	test_cmp expect actual
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'
 | 
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 | 
						|
test_expect_success 'difftool -x cat' '
 | 
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	echo branch >expect &&
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						|
	echo main >>expect &&
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						|
	git difftool --no-prompt -x cat branch >actual &&
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						|
	test_cmp expect actual
 | 
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'
 | 
						|
 | 
						|
test_expect_success 'difftool --extcmd echo arg1' '
 | 
						|
	echo file >expect &&
 | 
						|
	git difftool --no-prompt \
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						|
		--extcmd sh\ -c\ \"echo\ \$1\" branch >actual &&
 | 
						|
	test_cmp expect actual
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool --extcmd cat arg1' '
 | 
						|
	echo main >expect &&
 | 
						|
	git difftool --no-prompt \
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						|
		--extcmd sh\ -c\ \"cat\ \$1\" branch >actual &&
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						|
	test_cmp expect actual
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool --extcmd cat arg2' '
 | 
						|
	echo branch >expect &&
 | 
						|
	git difftool --no-prompt \
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						|
		--extcmd sh\ -c\ \"cat\ \\\"\$2\\\"\" branch >actual &&
 | 
						|
	test_cmp expect actual
 | 
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'
 | 
						|
 | 
						|
# Create a second file on main and a different version on branch
 | 
						|
test_expect_success 'setup with 2 files different' '
 | 
						|
	echo m2 >file2 &&
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						|
	git add file2 &&
 | 
						|
	git commit -m "added file2" &&
 | 
						|
 | 
						|
	git checkout branch &&
 | 
						|
	echo br2 >file2 &&
 | 
						|
	git add file2 &&
 | 
						|
	git commit -a -m "branch changed file2" &&
 | 
						|
	git checkout main
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'say no to the first file' '
 | 
						|
	(echo n && echo) >input &&
 | 
						|
	git difftool -x cat branch <input >output &&
 | 
						|
	grep m2 output &&
 | 
						|
	grep br2 output &&
 | 
						|
	! grep main output &&
 | 
						|
	! grep branch output
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'say no to the second file' '
 | 
						|
	(echo && echo n) >input &&
 | 
						|
	git difftool -x cat branch <input >output &&
 | 
						|
	grep main output &&
 | 
						|
	grep branch output &&
 | 
						|
	! grep m2 output &&
 | 
						|
	! grep br2 output
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'ending prompt input with EOF' '
 | 
						|
	git difftool -x cat branch </dev/null >output &&
 | 
						|
	! grep main output &&
 | 
						|
	! grep branch output &&
 | 
						|
	! grep m2 output &&
 | 
						|
	! grep br2 output
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool --tool-help' '
 | 
						|
	git difftool --tool-help >output &&
 | 
						|
	grep tool output
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'setup change in subdirectory' '
 | 
						|
	git checkout main &&
 | 
						|
	mkdir sub &&
 | 
						|
	echo main >sub/sub &&
 | 
						|
	git add sub/sub &&
 | 
						|
	git commit -m "added sub/sub" &&
 | 
						|
	git tag v1 &&
 | 
						|
	echo test >>file &&
 | 
						|
	echo test >>sub/sub &&
 | 
						|
	git add file sub/sub &&
 | 
						|
	git commit -m "modified both"
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool -d with growing paths' '
 | 
						|
	a=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
 | 
						|
	git init growing &&
 | 
						|
	(
 | 
						|
		cd growing &&
 | 
						|
		echo "test -f \"\$2/b\"" | write_script .git/test-for-b.sh &&
 | 
						|
		one=$(printf 1 | git hash-object -w --stdin) &&
 | 
						|
		two=$(printf 2 | git hash-object -w --stdin) &&
 | 
						|
		git update-index --add \
 | 
						|
			--cacheinfo 100644,$one,$a --cacheinfo 100644,$two,b &&
 | 
						|
		tree1=$(git write-tree) &&
 | 
						|
		git update-index --add \
 | 
						|
			--cacheinfo 100644,$two,$a --cacheinfo 100644,$one,b &&
 | 
						|
		tree2=$(git write-tree) &&
 | 
						|
		git checkout -- $a &&
 | 
						|
		git difftool -d --extcmd .git/test-for-b.sh $tree1 $tree2
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test () {
 | 
						|
	test_expect_success "$1 --no-symlinks" "
 | 
						|
		symlinks=--no-symlinks &&
 | 
						|
		$2
 | 
						|
	"
 | 
						|
	test_expect_success SYMLINKS "$1 --symlinks" "
 | 
						|
		symlinks=--symlinks &&
 | 
						|
		$2
 | 
						|
	"
 | 
						|
}
 | 
						|
 | 
						|
run_dir_diff_test 'difftool -d' '
 | 
						|
	git difftool -d $symlinks --extcmd ls branch >output &&
 | 
						|
	grep "^sub$" output &&
 | 
						|
	grep "^file$" output
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff' '
 | 
						|
	git difftool --dir-diff $symlinks --extcmd ls branch >output &&
 | 
						|
	grep "^sub$" output &&
 | 
						|
	grep "^file$" output
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff avoids repeated slashes in TMPDIR' '
 | 
						|
	TMPDIR="${TMPDIR:-/tmp}////" \
 | 
						|
		git difftool --dir-diff $symlinks --extcmd echo branch >output &&
 | 
						|
	grep -v // output >actual &&
 | 
						|
	test_line_count = 1 actual
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff ignores --prompt' '
 | 
						|
	git difftool --dir-diff $symlinks --prompt --extcmd ls branch >output &&
 | 
						|
	grep "^sub$" output &&
 | 
						|
	grep "^file$" output
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff branch from subdirectory' '
 | 
						|
	(
 | 
						|
		cd sub &&
 | 
						|
		git difftool --dir-diff $symlinks --extcmd ls branch >output &&
 | 
						|
		# "sub" must only exist in "right"
 | 
						|
		# "file" and "file2" must be listed in both "left" and "right"
 | 
						|
		grep "^sub$" output >sub-output &&
 | 
						|
		test_line_count = 1 sub-output &&
 | 
						|
		grep "^file$" output >file-output &&
 | 
						|
		test_line_count = 2 file-output &&
 | 
						|
		grep "^file2$" output >file2-output &&
 | 
						|
		test_line_count = 2 file2-output
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff v1 from subdirectory' '
 | 
						|
	(
 | 
						|
		cd sub &&
 | 
						|
		git difftool --dir-diff $symlinks --extcmd ls v1 >output &&
 | 
						|
		# "sub" and "file" exist in both v1 and HEAD.
 | 
						|
		# "file2" is unchanged.
 | 
						|
		grep "^sub$" output >sub-output &&
 | 
						|
		test_line_count = 2 sub-output &&
 | 
						|
		grep "^file$" output >file-output &&
 | 
						|
		test_line_count = 2 file-output &&
 | 
						|
		! grep "^file2$" output
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff branch from subdirectory w/ pathspec' '
 | 
						|
	(
 | 
						|
		cd sub &&
 | 
						|
		git difftool --dir-diff $symlinks --extcmd ls branch -- .>output &&
 | 
						|
		# "sub" only exists in "right"
 | 
						|
		# "file" and "file2" must not be listed
 | 
						|
		grep "^sub$" output >sub-output &&
 | 
						|
		test_line_count = 1 sub-output &&
 | 
						|
		! grep "^file$" output
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff v1 from subdirectory w/ pathspec' '
 | 
						|
	(
 | 
						|
		cd sub &&
 | 
						|
		git difftool --dir-diff $symlinks --extcmd ls v1 -- .>output &&
 | 
						|
		# "sub" exists in v1 and HEAD
 | 
						|
		# "file" is filtered out by the pathspec
 | 
						|
		grep "^sub$" output >sub-output &&
 | 
						|
		test_line_count = 2 sub-output &&
 | 
						|
		! grep "^file$" output
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff from subdirectory with GIT_DIR set' '
 | 
						|
	(
 | 
						|
		GIT_DIR=$(pwd)/.git &&
 | 
						|
		export GIT_DIR &&
 | 
						|
		GIT_WORK_TREE=$(pwd) &&
 | 
						|
		export GIT_WORK_TREE &&
 | 
						|
		cd sub &&
 | 
						|
		git difftool --dir-diff $symlinks --extcmd ls \
 | 
						|
			branch -- sub >output &&
 | 
						|
		grep "^sub$" output &&
 | 
						|
		! grep "^file$" output
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff when worktree file is missing' '
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
	rm file2 &&
 | 
						|
	git difftool --dir-diff $symlinks --extcmd ls branch main >output &&
 | 
						|
	grep "^file2$" output
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff with unmerged files' '
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
	test_config difftool.echo.cmd "echo ok" &&
 | 
						|
	git checkout -B conflict-a &&
 | 
						|
	git checkout -B conflict-b &&
 | 
						|
	git checkout conflict-a &&
 | 
						|
	echo a >>file &&
 | 
						|
	git add file &&
 | 
						|
	git commit -m conflict-a &&
 | 
						|
	git checkout conflict-b &&
 | 
						|
	echo b >>file &&
 | 
						|
	git add file &&
 | 
						|
	git commit -m conflict-b &&
 | 
						|
	git checkout main &&
 | 
						|
	git merge conflict-a &&
 | 
						|
	test_must_fail git merge conflict-b &&
 | 
						|
	cat >expect <<-EOF &&
 | 
						|
		ok
 | 
						|
	EOF
 | 
						|
	git difftool --dir-diff $symlinks -t echo >actual &&
 | 
						|
	test_cmp expect actual
 | 
						|
'
 | 
						|
 | 
						|
write_script .git/CHECK_SYMLINKS <<\EOF
 | 
						|
for f in file file2 sub/sub
 | 
						|
do
 | 
						|
	echo "$f"
 | 
						|
	ls -ld "$2/$f" | sed -e 's/.* -> //'
 | 
						|
done >actual
 | 
						|
EOF
 | 
						|
 | 
						|
test_expect_success SYMLINKS 'difftool --dir-diff --symlinks without unstaged changes' '
 | 
						|
	cat >expect <<-EOF &&
 | 
						|
	file
 | 
						|
	$PWD/file
 | 
						|
	file2
 | 
						|
	$PWD/file2
 | 
						|
	sub/sub
 | 
						|
	$PWD/sub/sub
 | 
						|
	EOF
 | 
						|
	git difftool --dir-diff --symlinks \
 | 
						|
		--extcmd "./.git/CHECK_SYMLINKS" branch HEAD &&
 | 
						|
	test_cmp expect actual
 | 
						|
'
 | 
						|
 | 
						|
write_script modify-right-file <<\EOF
 | 
						|
echo "new content" >"$2/file"
 | 
						|
EOF
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff syncs worktree with unstaged change' '
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
	echo "orig content" >file &&
 | 
						|
	git difftool -d $symlinks --extcmd "$PWD/modify-right-file" branch &&
 | 
						|
	echo "new content" >expect &&
 | 
						|
	test_cmp expect file
 | 
						|
'
 | 
						|
 | 
						|
run_dir_diff_test 'difftool --dir-diff syncs worktree without unstaged change' '
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
	git difftool -d $symlinks --extcmd "$PWD/modify-right-file" branch &&
 | 
						|
	echo "new content" >expect &&
 | 
						|
	test_cmp expect file
 | 
						|
'
 | 
						|
 | 
						|
write_script modify-file <<\EOF
 | 
						|
echo "new content" >file
 | 
						|
EOF
 | 
						|
 | 
						|
test_expect_success 'difftool --no-symlinks does not overwrite working tree file ' '
 | 
						|
	echo "orig content" >file &&
 | 
						|
	git difftool --dir-diff --no-symlinks --extcmd "$PWD/modify-file" branch &&
 | 
						|
	echo "new content" >expect &&
 | 
						|
	test_cmp expect file
 | 
						|
'
 | 
						|
 | 
						|
write_script modify-both-files <<\EOF
 | 
						|
echo "wt content" >file &&
 | 
						|
echo "tmp content" >"$2/file" &&
 | 
						|
echo "$2" >tmpdir
 | 
						|
EOF
 | 
						|
 | 
						|
test_expect_success 'difftool --no-symlinks detects conflict ' '
 | 
						|
	(
 | 
						|
		TMPDIR=$TRASH_DIRECTORY &&
 | 
						|
		export TMPDIR &&
 | 
						|
		echo "orig content" >file &&
 | 
						|
		test_must_fail git difftool --dir-diff --no-symlinks --extcmd "$PWD/modify-both-files" branch &&
 | 
						|
		echo "wt content" >expect &&
 | 
						|
		test_cmp expect file &&
 | 
						|
		echo "tmp content" >expect &&
 | 
						|
		test_cmp expect "$(cat tmpdir)/file"
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool properly honors gitlink and core.worktree' '
 | 
						|
	test_when_finished rm -rf submod/ule &&
 | 
						|
	test_config_global protocol.file.allow always &&
 | 
						|
	git submodule add ./. submod/ule &&
 | 
						|
	test_config -C submod/ule diff.tool checktrees &&
 | 
						|
	test_config -C submod/ule difftool.checktrees.cmd '\''
 | 
						|
		test -d "$LOCAL" && test -d "$REMOTE" && echo good
 | 
						|
		'\'' &&
 | 
						|
	(
 | 
						|
		cd submod/ule &&
 | 
						|
		echo good >expect &&
 | 
						|
		git difftool --tool=checktrees --dir-diff HEAD~ >actual &&
 | 
						|
		test_cmp expect actual &&
 | 
						|
		rm -f expect actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success SYMLINKS 'difftool --dir-diff symlinked directories' '
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
	git init dirlinks &&
 | 
						|
	(
 | 
						|
		cd dirlinks &&
 | 
						|
		git config diff.tool checktrees &&
 | 
						|
		git config difftool.checktrees.cmd "echo good" &&
 | 
						|
		mkdir foo &&
 | 
						|
		: >foo/bar &&
 | 
						|
		git add foo/bar &&
 | 
						|
		test_commit symlink-one &&
 | 
						|
		ln -s foo link &&
 | 
						|
		git add link &&
 | 
						|
		test_commit symlink-two &&
 | 
						|
		echo good >expect &&
 | 
						|
		git difftool --tool=checktrees --dir-diff HEAD~ >actual &&
 | 
						|
		test_cmp expect actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success SYMLINKS 'difftool --dir-diff handles modified symlinks' '
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
	touch b &&
 | 
						|
	ln -s b c &&
 | 
						|
	git add b c &&
 | 
						|
	test_tick &&
 | 
						|
	git commit -m initial &&
 | 
						|
	touch d &&
 | 
						|
	rm c &&
 | 
						|
	ln -s d c &&
 | 
						|
	cat >expect <<-EOF &&
 | 
						|
		c
 | 
						|
 | 
						|
		c
 | 
						|
	EOF
 | 
						|
	git difftool --symlinks --dir-diff --extcmd ls >output &&
 | 
						|
	grep -v ^/ output >actual &&
 | 
						|
	test_cmp expect actual &&
 | 
						|
 | 
						|
	git difftool --no-symlinks --dir-diff --extcmd ls >output &&
 | 
						|
	grep -v ^/ output >actual &&
 | 
						|
	test_cmp expect actual &&
 | 
						|
 | 
						|
	# The left side contains symlink "c" that points to "b"
 | 
						|
	test_config difftool.cat.cmd "cat \$LOCAL/c" &&
 | 
						|
	printf "%s\n" b >expect &&
 | 
						|
 | 
						|
	git difftool --symlinks --dir-diff --tool cat >actual &&
 | 
						|
	test_cmp expect actual &&
 | 
						|
 | 
						|
	git difftool --symlinks --no-symlinks --dir-diff --tool cat >actual &&
 | 
						|
	test_cmp expect actual &&
 | 
						|
 | 
						|
	# The right side contains symlink "c" that points to "d"
 | 
						|
	test_config difftool.cat.cmd "cat \$REMOTE/c" &&
 | 
						|
	printf "%s\n" d >expect &&
 | 
						|
 | 
						|
	git difftool --symlinks --dir-diff --tool cat >actual &&
 | 
						|
	test_cmp expect actual &&
 | 
						|
 | 
						|
	git difftool --no-symlinks --dir-diff --tool cat >actual &&
 | 
						|
	test_cmp expect actual &&
 | 
						|
 | 
						|
	# Deleted symlinks
 | 
						|
	rm -f c &&
 | 
						|
	cat >expect <<-EOF &&
 | 
						|
		c
 | 
						|
 | 
						|
	EOF
 | 
						|
	git difftool --symlinks --dir-diff --extcmd ls >output &&
 | 
						|
	grep -v ^/ output >actual &&
 | 
						|
	test_cmp expect actual &&
 | 
						|
 | 
						|
	git difftool --no-symlinks --dir-diff --extcmd ls >output &&
 | 
						|
	grep -v ^/ output >actual &&
 | 
						|
	test_cmp expect actual
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success SYMLINKS 'difftool --dir-diff writes symlinks as raw text' '
 | 
						|
	# Start out on a branch called "branch-init".
 | 
						|
	git init -b branch-init symlink-files &&
 | 
						|
	(
 | 
						|
		cd symlink-files &&
 | 
						|
		# This test ensures that symlinks are written as raw text.
 | 
						|
		# The "cat" tools output link and file contents.
 | 
						|
		git config difftool.cat-left-link.cmd "cat \"\$LOCAL/link\"" &&
 | 
						|
		git config difftool.cat-left-a.cmd "cat \"\$LOCAL/file-a\"" &&
 | 
						|
		git config difftool.cat-right-link.cmd "cat \"\$REMOTE/link\"" &&
 | 
						|
		git config difftool.cat-right-b.cmd "cat \"\$REMOTE/file-b\"" &&
 | 
						|
 | 
						|
		# Record the empty initial state so that we can come back here
 | 
						|
		# later and not have to consider the any cases where difftool
 | 
						|
		# will create symlinks back into the worktree.
 | 
						|
		test_tick &&
 | 
						|
		git commit --allow-empty -m init &&
 | 
						|
 | 
						|
		# Create a file called "file-a" with a symlink pointing to it.
 | 
						|
		git switch -c branch-a &&
 | 
						|
		echo a >file-a &&
 | 
						|
		ln -s file-a link &&
 | 
						|
		git add file-a link &&
 | 
						|
		test_tick &&
 | 
						|
		git commit -m link-to-file-a &&
 | 
						|
 | 
						|
		# Create a file called "file-b" and point the symlink to it.
 | 
						|
		git switch -c branch-b &&
 | 
						|
		echo b >file-b &&
 | 
						|
		rm link &&
 | 
						|
		ln -s file-b link &&
 | 
						|
		git add file-b link &&
 | 
						|
		git rm file-a &&
 | 
						|
		test_tick &&
 | 
						|
		git commit -m link-to-file-b &&
 | 
						|
 | 
						|
		# Checkout the initial branch so that the --symlinks behavior is
 | 
						|
		# not activated. The two directories should be completely
 | 
						|
		# independent with no symlinks pointing back here.
 | 
						|
		git switch branch-init &&
 | 
						|
 | 
						|
		# The left link must be "file-a" and "file-a" must contain "a".
 | 
						|
		echo file-a >expect &&
 | 
						|
		git difftool --symlinks --dir-diff --tool cat-left-link \
 | 
						|
			branch-a branch-b >actual &&
 | 
						|
		test_cmp expect actual &&
 | 
						|
 | 
						|
		echo a >expect &&
 | 
						|
		git difftool --symlinks --dir-diff --tool cat-left-a \
 | 
						|
			branch-a branch-b >actual &&
 | 
						|
		test_cmp expect actual &&
 | 
						|
 | 
						|
		# The right link must be "file-b" and "file-b" must contain "b".
 | 
						|
		echo file-b >expect &&
 | 
						|
		git difftool --symlinks --dir-diff --tool cat-right-link \
 | 
						|
			branch-a branch-b >actual &&
 | 
						|
		test_cmp expect actual &&
 | 
						|
 | 
						|
		echo b >expect &&
 | 
						|
		git difftool --symlinks --dir-diff --tool cat-right-b \
 | 
						|
			branch-a branch-b >actual &&
 | 
						|
		test_cmp expect actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'add -N and difftool -d' '
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
 | 
						|
	test_write_lines A B C >intent-to-add &&
 | 
						|
	git add -N intent-to-add &&
 | 
						|
	git difftool --dir-diff --extcmd ls
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool --cached with unmerged files' '
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
 | 
						|
	test_commit conflicting &&
 | 
						|
	test_commit conflict-a conflict.t a &&
 | 
						|
	git reset --hard conflicting &&
 | 
						|
	test_commit conflict-b conflict.t b &&
 | 
						|
	test_must_fail git merge conflict-a &&
 | 
						|
 | 
						|
	git difftool --cached --no-prompt >output &&
 | 
						|
	test_must_be_empty output
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'outside worktree' '
 | 
						|
	echo 1 >1 &&
 | 
						|
	echo 2 >2 &&
 | 
						|
	test_expect_code 1 nongit git \
 | 
						|
		-c diff.tool=echo -c difftool.echo.cmd="echo \$LOCAL \$REMOTE" \
 | 
						|
		difftool --no-prompt --no-index ../1 ../2 >actual &&
 | 
						|
	echo "../1 ../2" >expect &&
 | 
						|
	test_cmp expect actual
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool --gui, --tool and --extcmd are mutually exclusive' '
 | 
						|
	difftool_test_setup &&
 | 
						|
	test_must_fail git difftool --gui --tool=test-tool &&
 | 
						|
	test_must_fail git difftool --gui --extcmd=cat &&
 | 
						|
	test_must_fail git difftool --tool=test-tool --extcmd=cat &&
 | 
						|
	test_must_fail git difftool --gui --tool=test-tool --extcmd=cat
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool --rotate-to' '
 | 
						|
	difftool_test_setup &&
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
	echo 1 >1 &&
 | 
						|
	echo 2 >2 &&
 | 
						|
	echo 4 >4 &&
 | 
						|
	git add 1 2 4 &&
 | 
						|
	git commit -a -m "124" &&
 | 
						|
	git difftool --no-prompt --extcmd=cat --rotate-to="2" HEAD^ >output &&
 | 
						|
	cat >expect <<-\EOF &&
 | 
						|
	2
 | 
						|
	4
 | 
						|
	1
 | 
						|
	EOF
 | 
						|
	test_cmp output expect
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool --skip-to' '
 | 
						|
	difftool_test_setup &&
 | 
						|
	test_when_finished git reset --hard &&
 | 
						|
	git difftool --no-prompt --extcmd=cat --skip-to="2" HEAD^ >output &&
 | 
						|
	cat >expect <<-\EOF &&
 | 
						|
	2
 | 
						|
	4
 | 
						|
	EOF
 | 
						|
	test_cmp output expect
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'difftool --rotate/skip-to error condition' '
 | 
						|
	test_must_fail git difftool --no-prompt --extcmd=cat --rotate-to="3" HEAD^ &&
 | 
						|
	test_must_fail git difftool --no-prompt --extcmd=cat --skip-to="3" HEAD^
 | 
						|
'
 | 
						|
test_done
 |