#!/bin/sh
#
-# Copyright (c) 2009, 2010 David Aguilar
+# Copyright (c) 2009, 2010, 2012, 2013 David Aguilar
#
test_description='git-difftool
. ./test-lib.sh
-remove_config_vars()
+difftool_test_setup ()
{
- # Unset all config variables used by git-difftool
- git config --unset diff.tool
- git config --unset diff.guitool
- git config --unset difftool.test-tool.cmd
- git config --unset difftool.prompt
- git config --unset merge.tool
- git config --unset mergetool.test-tool.cmd
- git config --unset mergetool.prompt
- return 0
+ test_config diff.tool test-tool &&
+ test_config difftool.test-tool.cmd 'cat "$LOCAL"' &&
+ test_config difftool.bogus-tool.cmd false
}
-restore_test_defaults()
-{
- # Restores the test defaults used by several tests
- remove_config_vars
- unset GIT_DIFF_TOOL
- unset GIT_DIFFTOOL_PROMPT
- unset GIT_DIFFTOOL_NO_PROMPT
- git config diff.tool test-tool &&
- git config difftool.test-tool.cmd 'cat $LOCAL'
- git config difftool.bogus-tool.cmd false
-}
-
-prompt_given()
+prompt_given ()
{
prompt="$1"
test "$prompt" = "Launch 'test-tool' [Y/n]: branch"
}
-stdin_contains()
-{
- grep >/dev/null "$1"
-}
-
-stdin_doesnot_contain()
-{
- ! stdin_contains "$1"
-}
-
# Create a file on master and change it on branch
test_expect_success PERL 'setup' '
echo master >file &&
# Configure a custom difftool.<tool>.cmd and use it
test_expect_success PERL 'custom commands' '
- restore_test_defaults &&
- git config difftool.test-tool.cmd "cat \$REMOTE" &&
+ difftool_test_setup &&
+ test_config difftool.test-tool.cmd "cat \"\$REMOTE\"" &&
+ echo master >expect &&
+ git difftool --no-prompt branch >actual &&
+ test_cmp expect actual &&
- diff=$(git difftool --no-prompt branch) &&
- test "$diff" = "master" &&
-
- restore_test_defaults &&
- diff=$(git difftool --no-prompt branch) &&
- test "$diff" = "branch"
+ test_config difftool.test-tool.cmd "cat \"\$LOCAL\"" &&
+ echo branch >expect &&
+ git difftool --no-prompt branch >actual &&
+ test_cmp expect actual
'
-# Ensures that a custom difftool.<tool>.cmd overrides built-ins
-test_expect_success PERL 'custom commands override built-ins' '
- restore_test_defaults &&
- git config difftool.defaults.cmd "cat \$REMOTE" &&
-
- diff=$(git difftool --tool defaults --no-prompt branch) &&
- test "$diff" = "master" &&
-
- git config --unset difftool.defaults.cmd
+test_expect_success PERL 'custom tool commands override built-ins' '
+ test_config difftool.vimdiff.cmd "cat \"\$REMOTE\"" &&
+ echo master >expect &&
+ git difftool --tool vimdiff --no-prompt branch >actual &&
+ test_cmp expect actual
'
-# Ensures that git-difftool ignores bogus --tool values
test_expect_success PERL 'difftool ignores bad --tool values' '
- diff=$(git difftool --no-prompt --tool=bad-tool branch)
- test "$?" = 1 &&
- test "$diff" = ""
+ : >expect &&
+ test_expect_code 1 \
+ git difftool --no-prompt --tool=bad-tool branch >actual &&
+ test_cmp expect actual
'
test_expect_success PERL 'difftool forwards arguments to diff' '
+ difftool_test_setup &&
>for-diff &&
git add for-diff &&
echo changes>for-diff &&
git add for-diff &&
- diff=$(git difftool --cached --no-prompt -- for-diff) &&
- test "$diff" = "" &&
+ : >expect &&
+ git difftool --cached --no-prompt -- for-diff >actual &&
+ test_cmp expect actual &&
git reset -- for-diff &&
rm for-diff
'
test_expect_success PERL 'difftool honors --gui' '
- git config merge.tool bogus-tool &&
- git config diff.tool bogus-tool &&
- git config diff.guitool test-tool &&
+ difftool_test_setup &&
+ test_config merge.tool bogus-tool &&
+ test_config diff.tool bogus-tool &&
+ test_config diff.guitool test-tool &&
- diff=$(git difftool --no-prompt --gui branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults
+ echo branch >expect &&
+ git difftool --no-prompt --gui branch >actual &&
+ test_cmp expect actual
'
test_expect_success PERL 'difftool --gui last setting wins' '
- git config diff.guitool bogus-tool &&
- git difftool --no-prompt --gui --no-gui &&
-
- git config merge.tool bogus-tool &&
- git config diff.tool bogus-tool &&
- git config diff.guitool test-tool &&
- diff=$(git difftool --no-prompt --no-gui --gui branch) &&
- test "$diff" = "branch" &&
+ difftool_test_setup &&
+ : >expect &&
+ git difftool --no-prompt --gui --no-gui >actual &&
+ test_cmp expect actual &&
- restore_test_defaults
+ test_config merge.tool bogus-tool &&
+ test_config diff.tool bogus-tool &&
+ test_config diff.guitool test-tool &&
+ echo branch >expect &&
+ git difftool --no-prompt --no-gui --gui branch >actual &&
+ test_cmp expect actual
'
test_expect_success PERL 'difftool --gui works without configured diff.guitool' '
- git config diff.tool test-tool &&
-
- diff=$(git difftool --no-prompt --gui branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults
+ difftool_test_setup &&
+ echo branch >expect &&
+ git difftool --no-prompt --gui branch >actual &&
+ test_cmp expect actual
'
# Specify the diff tool using $GIT_DIFF_TOOL
test_expect_success PERL 'GIT_DIFF_TOOL variable' '
- test_might_fail git config --unset diff.tool &&
- GIT_DIFF_TOOL=test-tool &&
- export GIT_DIFF_TOOL &&
-
- diff=$(git difftool --no-prompt branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults
+ difftool_test_setup &&
+ git config --unset diff.tool &&
+ echo branch >expect &&
+ GIT_DIFF_TOOL=test-tool git difftool --no-prompt branch >actual &&
+ test_cmp expect actual
'
# Test the $GIT_*_TOOL variables and ensure
# that $GIT_DIFF_TOOL always wins unless --tool is specified
test_expect_success PERL 'GIT_DIFF_TOOL overrides' '
- git config diff.tool bogus-tool &&
- git config merge.tool bogus-tool &&
+ difftool_test_setup &&
+ test_config diff.tool bogus-tool &&
+ test_config merge.tool bogus-tool &&
- GIT_DIFF_TOOL=test-tool &&
- export GIT_DIFF_TOOL &&
+ echo branch >expect &&
+ GIT_DIFF_TOOL=test-tool git difftool --no-prompt branch >actual &&
+ test_cmp expect actual &&
- diff=$(git difftool --no-prompt branch) &&
- test "$diff" = "branch" &&
-
- GIT_DIFF_TOOL=bogus-tool &&
- export GIT_DIFF_TOOL &&
-
- diff=$(git difftool --no-prompt --tool=test-tool branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults
+ test_config diff.tool bogus-tool &&
+ test_config merge.tool bogus-tool &&
+ GIT_DIFF_TOOL=bogus-tool \
+ git difftool --no-prompt --tool=test-tool branch >actual &&
+ test_cmp expect actual
'
# Test that we don't have to pass --no-prompt to difftool
# when $GIT_DIFFTOOL_NO_PROMPT is true
test_expect_success PERL 'GIT_DIFFTOOL_NO_PROMPT variable' '
- GIT_DIFFTOOL_NO_PROMPT=true &&
- export GIT_DIFFTOOL_NO_PROMPT &&
-
- diff=$(git difftool branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults
+ difftool_test_setup &&
+ echo branch >expect &&
+ GIT_DIFFTOOL_NO_PROMPT=true git difftool branch >actual &&
+ test_cmp expect actual
'
# git-difftool supports the difftool.prompt variable.
# Test that GIT_DIFFTOOL_PROMPT can override difftool.prompt = false
test_expect_success PERL 'GIT_DIFFTOOL_PROMPT variable' '
- git config difftool.prompt false &&
- GIT_DIFFTOOL_PROMPT=true &&
- export GIT_DIFFTOOL_PROMPT &&
-
- prompt=$(echo | git difftool branch | tail -1) &&
- prompt_given "$prompt" &&
-
- restore_test_defaults
+ difftool_test_setup &&
+ test_config difftool.prompt false &&
+ echo >input &&
+ GIT_DIFFTOOL_PROMPT=true git difftool branch <input >output &&
+ prompt=$(tail -1 <output) &&
+ prompt_given "$prompt"
'
# Test that we don't have to pass --no-prompt when difftool.prompt is false
test_expect_success PERL 'difftool.prompt config variable is false' '
- git config difftool.prompt false &&
-
- diff=$(git difftool branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults
+ difftool_test_setup &&
+ test_config difftool.prompt false &&
+ echo branch >expect &&
+ git difftool branch >actual &&
+ test_cmp expect actual
'
# Test that we don't have to pass --no-prompt when mergetool.prompt is false
test_expect_success PERL 'difftool merge.prompt = false' '
+ difftool_test_setup &&
test_might_fail git config --unset difftool.prompt &&
- git config mergetool.prompt false &&
-
- diff=$(git difftool branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults
+ test_config mergetool.prompt false &&
+ echo branch >expect &&
+ git difftool branch >actual &&
+ test_cmp expect actual
'
# Test that the -y flag can override difftool.prompt = true
test_expect_success PERL 'difftool.prompt can overridden with -y' '
- git config difftool.prompt true &&
-
- diff=$(git difftool -y branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults
+ difftool_test_setup &&
+ test_config difftool.prompt true &&
+ echo branch >expect &&
+ git difftool -y branch >actual &&
+ test_cmp expect actual
'
# Test that the --prompt flag can override difftool.prompt = false
test_expect_success PERL 'difftool.prompt can overridden with --prompt' '
- git config difftool.prompt false &&
-
- prompt=$(echo | git difftool --prompt branch | tail -1) &&
- prompt_given "$prompt" &&
-
- restore_test_defaults
+ difftool_test_setup &&
+ test_config difftool.prompt false &&
+ echo >input &&
+ git difftool --prompt branch <input >output &&
+ prompt=$(tail -1 <output) &&
+ prompt_given "$prompt"
'
# Test that the last flag passed on the command-line wins
test_expect_success PERL 'difftool last flag wins' '
- diff=$(git difftool --prompt --no-prompt branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults &&
-
- prompt=$(echo | git difftool --no-prompt --prompt branch | tail -1) &&
- prompt_given "$prompt" &&
-
- restore_test_defaults
+ difftool_test_setup &&
+ echo branch >expect &&
+ git difftool --prompt --no-prompt branch >actual &&
+ test_cmp expect actual &&
+ echo >input &&
+ git difftool --no-prompt --prompt branch <input >output &&
+ prompt=$(tail -1 <output) &&
+ prompt_given "$prompt"
'
# git-difftool falls back to git-mergetool config variables
# so test that behavior here
test_expect_success PERL 'difftool + mergetool config variables' '
- remove_config_vars &&
- git config merge.tool test-tool &&
- git config mergetool.test-tool.cmd "cat \$LOCAL" &&
-
- diff=$(git difftool --no-prompt branch) &&
- test "$diff" = "branch" &&
+ test_config merge.tool test-tool &&
+ test_config mergetool.test-tool.cmd "cat \$LOCAL" &&
+ echo branch >expect &&
+ git difftool --no-prompt branch >actual &&
+ test_cmp expect actual &&
# set merge.tool to something bogus, diff.tool to test-tool
- git config merge.tool bogus-tool &&
- git config diff.tool test-tool &&
-
- diff=$(git difftool --no-prompt branch) &&
- test "$diff" = "branch" &&
-
- restore_test_defaults
+ test_config merge.tool bogus-tool &&
+ test_config diff.tool test-tool &&
+ git difftool --no-prompt branch >actual &&
+ test_cmp expect actual
'
test_expect_success PERL 'difftool.<tool>.path' '
- git config difftool.tkdiff.path echo &&
- diff=$(git difftool --tool=tkdiff --no-prompt branch) &&
- git config --unset difftool.tkdiff.path &&
- lines=$(echo "$diff" | grep file | wc -l) &&
- test "$lines" -eq 1 &&
-
- restore_test_defaults
+ test_config difftool.tkdiff.path echo &&
+ git difftool --tool=tkdiff --no-prompt branch >output &&
+ lines=$(grep file output | wc -l) &&
+ test "$lines" -eq 1
'
test_expect_success PERL 'difftool --extcmd=cat' '
- diff=$(git difftool --no-prompt --extcmd=cat branch) &&
- test "$diff" = branch"$LF"master
+ echo branch >expect &&
+ echo master >>expect &&
+ git difftool --no-prompt --extcmd=cat branch >actual &&
+ test_cmp expect actual
'
test_expect_success PERL 'difftool --extcmd cat' '
- diff=$(git difftool --no-prompt --extcmd cat branch) &&
- test "$diff" = branch"$LF"master
+ echo branch >expect &&
+ echo master >>expect &&
+ git difftool --no-prompt --extcmd=cat branch >actual &&
+ test_cmp expect actual
'
test_expect_success PERL 'difftool -x cat' '
- diff=$(git difftool --no-prompt -x cat branch) &&
- test "$diff" = branch"$LF"master
+ echo branch >expect &&
+ echo master >>expect &&
+ git difftool --no-prompt -x cat branch >actual &&
+ test_cmp expect actual
'
test_expect_success PERL 'difftool --extcmd echo arg1' '
- diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"echo\ \$1\" branch) &&
- test "$diff" = file
+ echo file >expect &&
+ git difftool --no-prompt \
+ --extcmd sh\ -c\ \"echo\ \$1\" branch >actual &&
+ test_cmp expect actual
'
test_expect_success PERL 'difftool --extcmd cat arg1' '
- diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"cat\ \$1\" branch) &&
- test "$diff" = master
+ echo master >expect &&
+ git difftool --no-prompt \
+ --extcmd sh\ -c\ \"cat\ \$1\" branch >actual &&
+ test_cmp expect actual
'
test_expect_success PERL 'difftool --extcmd cat arg2' '
- diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"cat\ \$2\" branch) &&
- test "$diff" = branch
+ echo branch >expect &&
+ git difftool --no-prompt \
+ --extcmd sh\ -c\ \"cat\ \$2\" branch >actual &&
+ test_cmp expect actual
'
# Create a second file on master and a different version on branch
'
test_expect_success PERL 'say no to the first file' '
- diff=$( (echo n; echo) | git difftool -x cat branch ) &&
-
- echo "$diff" | stdin_contains m2 &&
- echo "$diff" | stdin_contains br2 &&
- echo "$diff" | stdin_doesnot_contain master &&
- echo "$diff" | stdin_doesnot_contain branch
+ (echo n && echo) >input &&
+ git difftool -x cat branch <input >output &&
+ grep m2 output &&
+ grep br2 output &&
+ ! grep master output &&
+ ! grep branch output
'
test_expect_success PERL 'say no to the second file' '
- diff=$( (echo; echo n) | git difftool -x cat branch ) &&
-
- echo "$diff" | stdin_contains master &&
- echo "$diff" | stdin_contains branch &&
- echo "$diff" | stdin_doesnot_contain m2 &&
- echo "$diff" | stdin_doesnot_contain br2
+ (echo && echo n) >input &&
+ git difftool -x cat branch <input >output &&
+ grep master output &&
+ grep branch output &&
+ ! grep m2 output &&
+ ! grep br2 output
'
test_expect_success PERL 'difftool --tool-help' '
- tool_help=$(git difftool --tool-help) &&
- echo "$tool_help" | stdin_contains tool
+ git difftool --tool-help >output &&
+ grep tool output
'
test_expect_success PERL 'setup change in subdirectory' '
git commit -m "added sub/sub" &&
echo test >>file &&
echo test >>sub/sub &&
- git add . &&
+ git add file sub/sub &&
git commit -m "modified both"
'
-test_expect_success PERL 'difftool -d' '
- diff=$(git difftool -d --extcmd ls branch) &&
- echo "$diff" | stdin_contains sub &&
- echo "$diff" | stdin_contains file
+run_dir_diff_test () {
+ test_expect_success PERL "$1 --no-symlinks" "
+ symlinks=--no-symlinks &&
+ $2
+ "
+ test_expect_success PERL,SYMLINKS "$1 --symlinks" "
+ symlinks=--symlinks &&
+ $2
+ "
+}
+
+run_dir_diff_test 'difftool -d' '
+ git difftool -d $symlinks --extcmd ls branch >output &&
+ grep sub output &&
+ grep file output
'
-test_expect_success PERL 'difftool --dir-diff' '
- diff=$(git difftool --dir-diff --extcmd ls branch) &&
- echo "$diff" | stdin_contains sub &&
- echo "$diff" | stdin_contains file
+run_dir_diff_test 'difftool --dir-diff' '
+ git difftool --dir-diff $symlinks --extcmd ls branch >output &&
+ grep sub output &&
+ grep file output
'
-test_expect_success PERL 'difftool --dir-diff ignores --prompt' '
- diff=$(git difftool --dir-diff --prompt --extcmd ls branch) &&
- echo "$diff" | stdin_contains sub &&
- echo "$diff" | stdin_contains file
+run_dir_diff_test 'difftool --dir-diff ignores --prompt' '
+ git difftool --dir-diff $symlinks --prompt --extcmd ls branch >output &&
+ grep sub output &&
+ grep file output
'
-test_expect_success PERL 'difftool --dir-diff from subdirectory' '
+run_dir_diff_test 'difftool --dir-diff from subdirectory' '
(
cd sub &&
- diff=$(git difftool --dir-diff --extcmd ls branch) &&
- echo "$diff" | stdin_contains sub &&
- echo "$diff" | stdin_contains file
+ git difftool --dir-diff $symlinks --extcmd ls branch >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 $symlinks --extcmd ls branch master >output &&
+ grep file2 output
+'
+
+write_script .git/CHECK_SYMLINKS <<\EOF
+for f in file file2 sub/sub
+do
+ echo "$f"
+ readlink "$2/$f"
+done >actual
+EOF
+
+test_expect_success PERL,SYMLINKS 'difftool --dir-diff --symlink without unstaged changes' '
+ cat >expect <<-EOF &&
+ file
+ $(pwd)/file
+ file2
+ $(pwd)/file2
+ sub/sub
+ $(pwd)/sub/sub
+ EOF
+ git difftool --dir-diff --symlink \
+ --extcmd "./.git/CHECK_SYMLINKS" branch HEAD &&
+ test_cmp actual expect
+'
+
+write_script modify-file <<\EOF
+echo "new content" >file
+EOF
+
+test_expect_success PERL 'difftool --no-symlinks does not overwrite working tree file ' '
+ echo "orig content" >file &&
+ git difftool --dir-diff --no-symlinks --extcmd "$(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 "$2" >tmpdir
+EOF
+
+test_expect_success PERL 'difftool --no-symlinks detects conflict ' '
+ (
+ TMPDIR=$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"
)
'