Andrew's git - gitweb.git/blob - t/t7800-difftool.sh

   1#!/bin/sh
   2#
   3# Copyright (c) 2009, 2010, 2012, 2013 David Aguilar
   4#
   5
   6test_description='git-difftool
   7
   8Testing basic diff tool invocation
   9'
  10
  11. ./test-lib.sh
  12
  13difftool_test_setup ()
  14{
  15        test_config diff.tool test-tool &&
  16        test_config difftool.test-tool.cmd 'cat "$LOCAL"' &&
  17        test_config difftool.bogus-tool.cmd false
  18}
  19
  20prompt_given ()
  21{
  22        prompt="$1"
  23        test "$prompt" = "Launch 'test-tool' [Y/n]: branch"
  24}
  25
  26# Create a file on master and change it on branch
  27test_expect_success PERL 'setup' '
  28        echo master >file &&
  29        git add file &&
  30        git commit -m "added file" &&
  31
  32        git checkout -b branch master &&
  33        echo branch >file &&
  34        git commit -a -m "branch changed file" &&
  35        git checkout master
  36'
  37
  38# Configure a custom difftool.<tool>.cmd and use it
  39test_expect_success PERL 'custom commands' '
  40        difftool_test_setup &&
  41        test_config difftool.test-tool.cmd "cat \"\$REMOTE\"" &&
  42        echo master >expect &&
  43        git difftool --no-prompt branch >actual &&
  44        test_cmp expect actual &&
  45
  46        test_config difftool.test-tool.cmd "cat \"\$LOCAL\"" &&
  47        echo branch >expect &&
  48        git difftool --no-prompt branch >actual &&
  49        test_cmp expect actual
  50'
  51
  52test_expect_success PERL 'custom tool commands override built-ins' '
  53        test_config difftool.vimdiff.cmd "cat \"\$REMOTE\"" &&
  54        echo master >expect &&
  55        git difftool --tool vimdiff --no-prompt branch >actual &&
  56        test_cmp expect actual
  57'
  58
  59test_expect_success PERL 'difftool ignores bad --tool values' '
  60        : >expect &&
  61        test_must_fail \
  62                git difftool --no-prompt --tool=bad-tool branch >actual &&
  63        test_cmp expect actual
  64'
  65
  66test_expect_success PERL 'difftool forwards arguments to diff' '
  67        difftool_test_setup &&
  68        >for-diff &&
  69        git add for-diff &&
  70        echo changes>for-diff &&
  71        git add for-diff &&
  72        : >expect &&
  73        git difftool --cached --no-prompt -- for-diff >actual &&
  74        test_cmp expect actual &&
  75        git reset -- for-diff &&
  76        rm for-diff
  77'
  78
  79test_expect_success PERL 'difftool ignores exit code' '
  80        test_config difftool.error.cmd false &&
  81        git difftool -y -t error branch
  82'
  83
  84test_expect_success PERL 'difftool forwards exit code with --trust-exit-code' '
  85        test_config difftool.error.cmd false &&
  86        test_must_fail git difftool -y --trust-exit-code -t error branch
  87'
  88
  89test_expect_success PERL 'difftool forwards exit code with --trust-exit-code for built-ins' '
  90        test_config difftool.vimdiff.path false &&
  91        test_must_fail git difftool -y --trust-exit-code -t vimdiff branch
  92'
  93
  94test_expect_success PERL 'difftool honors difftool.trustExitCode = true' '
  95        test_config difftool.error.cmd false &&
  96        test_config difftool.trustExitCode true &&
  97        test_must_fail git difftool -y -t error branch
  98'
  99
 100test_expect_success PERL 'difftool honors difftool.trustExitCode = false' '
 101        test_config difftool.error.cmd false &&
 102        test_config difftool.trustExitCode false &&
 103        git difftool -y -t error branch
 104'
 105
 106test_expect_success PERL 'difftool ignores exit code with --no-trust-exit-code' '
 107        test_config difftool.error.cmd false &&
 108        test_config difftool.trustExitCode true &&
 109        git difftool -y --no-trust-exit-code -t error branch
 110'
 111
 112test_expect_success PERL 'difftool stops on error with --trust-exit-code' '
 113        test_when_finished "rm -f for-diff .git/fail-right-file" &&
 114        test_when_finished "git reset -- for-diff" &&
 115        write_script .git/fail-right-file <<-\EOF &&
 116        echo "$2"
 117        exit 1
 118        EOF
 119        >for-diff &&
 120        git add for-diff &&
 121        echo file >expect &&
 122        test_must_fail git difftool -y --trust-exit-code \
 123                --extcmd .git/fail-right-file branch >actual &&
 124        test_cmp expect actual
 125'
 126
 127test_expect_success PERL 'difftool honors --gui' '
 128        difftool_test_setup &&
 129        test_config merge.tool bogus-tool &&
 130        test_config diff.tool bogus-tool &&
 131        test_config diff.guitool test-tool &&
 132
 133        echo branch >expect &&
 134        git difftool --no-prompt --gui branch >actual &&
 135        test_cmp expect actual
 136'
 137
 138test_expect_success PERL 'difftool --gui last setting wins' '
 139        difftool_test_setup &&
 140        : >expect &&
 141        git difftool --no-prompt --gui --no-gui >actual &&
 142        test_cmp expect actual &&
 143
 144        test_config merge.tool bogus-tool &&
 145        test_config diff.tool bogus-tool &&
 146        test_config diff.guitool test-tool &&
 147        echo branch >expect &&
 148        git difftool --no-prompt --no-gui --gui branch >actual &&
 149        test_cmp expect actual
 150'
 151
 152test_expect_success PERL 'difftool --gui works without configured diff.guitool' '
 153        difftool_test_setup &&
 154        echo branch >expect &&
 155        git difftool --no-prompt --gui branch >actual &&
 156        test_cmp expect actual
 157'
 158
 159# Specify the diff tool using $GIT_DIFF_TOOL
 160test_expect_success PERL 'GIT_DIFF_TOOL variable' '
 161        difftool_test_setup &&
 162        git config --unset diff.tool &&
 163        echo branch >expect &&
 164        GIT_DIFF_TOOL=test-tool git difftool --no-prompt branch >actual &&
 165        test_cmp expect actual
 166'
 167
 168# Test the $GIT_*_TOOL variables and ensure
 169# that $GIT_DIFF_TOOL always wins unless --tool is specified
 170test_expect_success PERL 'GIT_DIFF_TOOL overrides' '
 171        difftool_test_setup &&
 172        test_config diff.tool bogus-tool &&
 173        test_config merge.tool bogus-tool &&
 174
 175        echo branch >expect &&
 176        GIT_DIFF_TOOL=test-tool git difftool --no-prompt branch >actual &&
 177        test_cmp expect actual &&
 178
 179        test_config diff.tool bogus-tool &&
 180        test_config merge.tool bogus-tool &&
 181        GIT_DIFF_TOOL=bogus-tool \
 182                git difftool --no-prompt --tool=test-tool branch >actual &&
 183        test_cmp expect actual
 184'
 185
 186# Test that we don't have to pass --no-prompt to difftool
 187# when $GIT_DIFFTOOL_NO_PROMPT is true
 188test_expect_success PERL 'GIT_DIFFTOOL_NO_PROMPT variable' '
 189        difftool_test_setup &&
 190        echo branch >expect &&
 191        GIT_DIFFTOOL_NO_PROMPT=true git difftool branch >actual &&
 192        test_cmp expect actual
 193'
 194
 195# git-difftool supports the difftool.prompt variable.
 196# Test that GIT_DIFFTOOL_PROMPT can override difftool.prompt = false
 197test_expect_success PERL 'GIT_DIFFTOOL_PROMPT variable' '
 198        difftool_test_setup &&
 199        test_config difftool.prompt false &&
 200        echo >input &&
 201        GIT_DIFFTOOL_PROMPT=true git difftool branch <input >output &&
 202        prompt=$(tail -1 <output) &&
 203        prompt_given "$prompt"
 204'
 205
 206# Test that we don't have to pass --no-prompt when difftool.prompt is false
 207test_expect_success PERL 'difftool.prompt config variable is false' '
 208        difftool_test_setup &&
 209        test_config difftool.prompt false &&
 210        echo branch >expect &&
 211        git difftool branch >actual &&
 212        test_cmp expect actual
 213'
 214
 215# Test that we don't have to pass --no-prompt when mergetool.prompt is false
 216test_expect_success PERL 'difftool merge.prompt = false' '
 217        difftool_test_setup &&
 218        test_might_fail git config --unset difftool.prompt &&
 219        test_config mergetool.prompt false &&
 220        echo branch >expect &&
 221        git difftool branch >actual &&
 222        test_cmp expect actual
 223'
 224
 225# Test that the -y flag can override difftool.prompt = true
 226test_expect_success PERL 'difftool.prompt can overridden with -y' '
 227        difftool_test_setup &&
 228        test_config difftool.prompt true &&
 229        echo branch >expect &&
 230        git difftool -y branch >actual &&
 231        test_cmp expect actual
 232'
 233
 234# Test that the --prompt flag can override difftool.prompt = false
 235test_expect_success PERL 'difftool.prompt can overridden with --prompt' '
 236        difftool_test_setup &&
 237        test_config difftool.prompt false &&
 238        echo >input &&
 239        git difftool --prompt branch <input >output &&
 240        prompt=$(tail -1 <output) &&
 241        prompt_given "$prompt"
 242'
 243
 244# Test that the last flag passed on the command-line wins
 245test_expect_success PERL 'difftool last flag wins' '
 246        difftool_test_setup &&
 247        echo branch >expect &&
 248        git difftool --prompt --no-prompt branch >actual &&
 249        test_cmp expect actual &&
 250        echo >input &&
 251        git difftool --no-prompt --prompt branch <input >output &&
 252        prompt=$(tail -1 <output) &&
 253        prompt_given "$prompt"
 254'
 255
 256# git-difftool falls back to git-mergetool config variables
 257# so test that behavior here
 258test_expect_success PERL 'difftool + mergetool config variables' '
 259        test_config merge.tool test-tool &&
 260        test_config mergetool.test-tool.cmd "cat \$LOCAL" &&
 261        echo branch >expect &&
 262        git difftool --no-prompt branch >actual &&
 263        test_cmp expect actual &&
 264
 265        # set merge.tool to something bogus, diff.tool to test-tool
 266        test_config merge.tool bogus-tool &&
 267        test_config diff.tool test-tool &&
 268        git difftool --no-prompt branch >actual &&
 269        test_cmp expect actual
 270'
 271
 272test_expect_success PERL 'difftool.<tool>.path' '
 273        test_config difftool.tkdiff.path echo &&
 274        git difftool --tool=tkdiff --no-prompt branch >output &&
 275        lines=$(grep file output | wc -l) &&
 276        test "$lines" -eq 1
 277'
 278
 279test_expect_success PERL 'difftool --extcmd=cat' '
 280        echo branch >expect &&
 281        echo master >>expect &&
 282        git difftool --no-prompt --extcmd=cat branch >actual &&
 283        test_cmp expect actual
 284'
 285
 286test_expect_success PERL 'difftool --extcmd cat' '
 287        echo branch >expect &&
 288        echo master >>expect &&
 289        git difftool --no-prompt --extcmd=cat branch >actual &&
 290        test_cmp expect actual
 291'
 292
 293test_expect_success PERL 'difftool -x cat' '
 294        echo branch >expect &&
 295        echo master >>expect &&
 296        git difftool --no-prompt -x cat branch >actual &&
 297        test_cmp expect actual
 298'
 299
 300test_expect_success PERL 'difftool --extcmd echo arg1' '
 301        echo file >expect &&
 302        git difftool --no-prompt \
 303                --extcmd sh\ -c\ \"echo\ \$1\" branch >actual &&
 304        test_cmp expect actual
 305'
 306
 307test_expect_success PERL 'difftool --extcmd cat arg1' '
 308        echo master >expect &&
 309        git difftool --no-prompt \
 310                --extcmd sh\ -c\ \"cat\ \$1\" branch >actual &&
 311        test_cmp expect actual
 312'
 313
 314test_expect_success PERL 'difftool --extcmd cat arg2' '
 315        echo branch >expect &&
 316        git difftool --no-prompt \
 317                --extcmd sh\ -c\ \"cat\ \$2\" branch >actual &&
 318        test_cmp expect actual
 319'
 320
 321# Create a second file on master and a different version on branch
 322test_expect_success PERL 'setup with 2 files different' '
 323        echo m2 >file2 &&
 324        git add file2 &&
 325        git commit -m "added file2" &&
 326
 327        git checkout branch &&
 328        echo br2 >file2 &&
 329        git add file2 &&
 330        git commit -a -m "branch changed file2" &&
 331        git checkout master
 332'
 333
 334test_expect_success PERL 'say no to the first file' '
 335        (echo n && echo) >input &&
 336        git difftool -x cat branch <input >output &&
 337        grep m2 output &&
 338        grep br2 output &&
 339        ! grep master output &&
 340        ! grep branch output
 341'
 342
 343test_expect_success PERL 'say no to the second file' '
 344        (echo && echo n) >input &&
 345        git difftool -x cat branch <input >output &&
 346        grep master output &&
 347        grep branch output &&
 348        ! grep m2 output &&
 349        ! grep br2 output
 350'
 351
 352test_expect_success PERL 'ending prompt input with EOF' '
 353        git difftool -x cat branch </dev/null >output &&
 354        ! grep master output &&
 355        ! grep branch output &&
 356        ! grep m2 output &&
 357        ! grep br2 output
 358'
 359
 360test_expect_success PERL 'difftool --tool-help' '
 361        git difftool --tool-help >output &&
 362        grep tool output
 363'
 364
 365test_expect_success PERL 'setup change in subdirectory' '
 366        git checkout master &&
 367        mkdir sub &&
 368        echo master >sub/sub &&
 369        git add sub/sub &&
 370        git commit -m "added sub/sub" &&
 371        echo test >>file &&
 372        echo test >>sub/sub &&
 373        git add file sub/sub &&
 374        git commit -m "modified both"
 375'
 376
 377run_dir_diff_test () {
 378        test_expect_success PERL "$1 --no-symlinks" "
 379                symlinks=--no-symlinks &&
 380                $2
 381        "
 382        test_expect_success PERL,SYMLINKS "$1 --symlinks" "
 383                symlinks=--symlinks &&
 384                $2
 385        "
 386}
 387
 388run_dir_diff_test 'difftool -d' '
 389        git difftool -d $symlinks --extcmd ls branch >output &&
 390        grep sub output &&
 391        grep file output
 392'
 393
 394run_dir_diff_test 'difftool --dir-diff' '
 395        git difftool --dir-diff $symlinks --extcmd ls branch >output &&
 396        grep sub output &&
 397        grep file output
 398'
 399
 400run_dir_diff_test 'difftool --dir-diff ignores --prompt' '
 401        git difftool --dir-diff $symlinks --prompt --extcmd ls branch >output &&
 402        grep sub output &&
 403        grep file output
 404'
 405
 406run_dir_diff_test 'difftool --dir-diff from subdirectory' '
 407        (
 408                cd sub &&
 409                git difftool --dir-diff $symlinks --extcmd ls branch >output &&
 410                grep sub output &&
 411                grep file output
 412        )
 413'
 414
 415run_dir_diff_test 'difftool --dir-diff when worktree file is missing' '
 416        test_when_finished git reset --hard &&
 417        rm file2 &&
 418        git difftool --dir-diff $symlinks --extcmd ls branch master >output &&
 419        grep file2 output
 420'
 421
 422write_script .git/CHECK_SYMLINKS <<\EOF
 423for f in file file2 sub/sub
 424do
 425        echo "$f"
 426        readlink "$2/$f"
 427done >actual
 428EOF
 429
 430test_expect_success PERL,SYMLINKS 'difftool --dir-diff --symlink without unstaged changes' '
 431        cat >expect <<-EOF &&
 432        file
 433        $PWD/file
 434        file2
 435        $PWD/file2
 436        sub/sub
 437        $PWD/sub/sub
 438        EOF
 439        git difftool --dir-diff --symlink \
 440                --extcmd "./.git/CHECK_SYMLINKS" branch HEAD &&
 441        test_cmp actual expect
 442'
 443
 444write_script modify-right-file <<\EOF
 445echo "new content" >"$2/file"
 446EOF
 447
 448run_dir_diff_test 'difftool --dir-diff syncs worktree with unstaged change' '
 449        test_when_finished git reset --hard &&
 450        echo "orig content" >file &&
 451        git difftool -d $symlinks --extcmd "$PWD/modify-right-file" branch &&
 452        echo "new content" >expect &&
 453        test_cmp expect file
 454'
 455
 456run_dir_diff_test 'difftool --dir-diff syncs worktree without unstaged change' '
 457        test_when_finished git reset --hard &&
 458        git difftool -d $symlinks --extcmd "$PWD/modify-right-file" branch &&
 459        echo "new content" >expect &&
 460        test_cmp expect file
 461'
 462
 463write_script modify-file <<\EOF
 464echo "new content" >file
 465EOF
 466
 467test_expect_success PERL 'difftool --no-symlinks does not overwrite working tree file ' '
 468        echo "orig content" >file &&
 469        git difftool --dir-diff --no-symlinks --extcmd "$PWD/modify-file" branch &&
 470        echo "new content" >expect &&
 471        test_cmp expect file
 472'
 473
 474write_script modify-both-files <<\EOF
 475echo "wt content" >file &&
 476echo "tmp content" >"$2/file" &&
 477echo "$2" >tmpdir
 478EOF
 479
 480test_expect_success PERL 'difftool --no-symlinks detects conflict ' '
 481        (
 482                TMPDIR=$TRASH_DIRECTORY &&
 483                export TMPDIR &&
 484                echo "orig content" >file &&
 485                test_must_fail git difftool --dir-diff --no-symlinks --extcmd "$PWD/modify-both-files" branch &&
 486                echo "wt content" >expect &&
 487                test_cmp expect file &&
 488                echo "tmp content" >expect &&
 489                test_cmp expect "$(cat tmpdir)/file"
 490        )
 491'
 492
 493test_expect_success PERL 'difftool properly honors gitlink and core.worktree' '
 494        git submodule add ./. submod/ule &&
 495        test_config -C submod/ule diff.tool checktrees &&
 496        test_config -C submod/ule difftool.checktrees.cmd '\''
 497                test -d "$LOCAL" && test -d "$REMOTE" && echo good
 498                '\'' &&
 499        (
 500                cd submod/ule &&
 501                echo good >expect &&
 502                git difftool --tool=checktrees --dir-diff HEAD~ >actual &&
 503                test_cmp expect actual
 504        )
 505'
 506
 507test_expect_success PERL,SYMLINKS 'difftool --dir-diff symlinked directories' '
 508        git init dirlinks &&
 509        (
 510                cd dirlinks &&
 511                git config diff.tool checktrees &&
 512                git config difftool.checktrees.cmd "echo good" &&
 513                mkdir foo &&
 514                : >foo/bar &&
 515                git add foo/bar &&
 516                test_commit symlink-one &&
 517                ln -s foo link &&
 518                git add link &&
 519                test_commit symlink-two &&
 520                echo good >expect &&
 521                git difftool --tool=checktrees --dir-diff HEAD~ >actual &&
 522                test_cmp expect actual
 523        )
 524'
 525
 526test_done