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
  26stdin_contains ()
  27{
  28        grep >/dev/null "$1"
  29}
  30
  31stdin_doesnot_contain ()
  32{
  33        ! stdin_contains "$1"
  34}
  35
  36# Create a file on master and change it on branch
  37test_expect_success PERL 'setup' '
  38        echo master >file &&
  39        git add file &&
  40        git commit -m "added file" &&
  41
  42        git checkout -b branch master &&
  43        echo branch >file &&
  44        git commit -a -m "branch changed file" &&
  45        git checkout master
  46'
  47
  48# Configure a custom difftool.<tool>.cmd and use it
  49test_expect_success PERL 'custom commands' '
  50        difftool_test_setup &&
  51        test_config difftool.test-tool.cmd "cat \"\$REMOTE\"" &&
  52        echo master >expect &&
  53        git difftool --no-prompt branch >actual &&
  54        test_cmp expect actual &&
  55
  56        test_config difftool.test-tool.cmd "cat \"\$LOCAL\"" &&
  57        echo branch >expect &&
  58        git difftool --no-prompt branch >actual &&
  59        test_cmp expect actual
  60'
  61
  62test_expect_success PERL 'custom tool commands override built-ins' '
  63        test_config difftool.vimdiff.cmd "cat \"\$REMOTE\"" &&
  64        echo master >expect &&
  65        git difftool --tool vimdiff --no-prompt branch >actual &&
  66        test_cmp expect actual
  67'
  68
  69test_expect_success PERL 'difftool ignores bad --tool values' '
  70        : >expect &&
  71        test_expect_code 1 \
  72                git difftool --no-prompt --tool=bad-tool branch >actual &&
  73        test_cmp expect actual
  74'
  75
  76test_expect_success PERL 'difftool forwards arguments to diff' '
  77        difftool_test_setup &&
  78        >for-diff &&
  79        git add for-diff &&
  80        echo changes>for-diff &&
  81        git add for-diff &&
  82        : >expect &&
  83        git difftool --cached --no-prompt -- for-diff >actual &&
  84        test_cmp expect actual &&
  85        git reset -- for-diff &&
  86        rm for-diff
  87'
  88
  89test_expect_success PERL 'difftool honors --gui' '
  90        difftool_test_setup &&
  91        test_config merge.tool bogus-tool &&
  92        test_config diff.tool bogus-tool &&
  93        test_config diff.guitool test-tool &&
  94
  95        echo branch >expect &&
  96        git difftool --no-prompt --gui branch >actual &&
  97        test_cmp expect actual
  98'
  99
 100test_expect_success PERL 'difftool --gui last setting wins' '
 101        difftool_test_setup &&
 102        : >expect &&
 103        git difftool --no-prompt --gui --no-gui >actual &&
 104        test_cmp expect actual &&
 105
 106        test_config merge.tool bogus-tool &&
 107        test_config diff.tool bogus-tool &&
 108        test_config diff.guitool test-tool &&
 109        echo branch >expect &&
 110        git difftool --no-prompt --no-gui --gui branch >actual &&
 111        test_cmp expect actual
 112'
 113
 114test_expect_success PERL 'difftool --gui works without configured diff.guitool' '
 115        difftool_test_setup &&
 116        echo branch >expect &&
 117        git difftool --no-prompt --gui branch >actual &&
 118        test_cmp expect actual
 119'
 120
 121# Specify the diff tool using $GIT_DIFF_TOOL
 122test_expect_success PERL 'GIT_DIFF_TOOL variable' '
 123        difftool_test_setup &&
 124        git config --unset diff.tool &&
 125        echo branch >expect &&
 126        GIT_DIFF_TOOL=test-tool git difftool --no-prompt branch >actual &&
 127        test_cmp expect actual
 128'
 129
 130# Test the $GIT_*_TOOL variables and ensure
 131# that $GIT_DIFF_TOOL always wins unless --tool is specified
 132test_expect_success PERL 'GIT_DIFF_TOOL overrides' '
 133        difftool_test_setup &&
 134        test_config diff.tool bogus-tool &&
 135        test_config merge.tool bogus-tool &&
 136
 137        echo branch >expect &&
 138        GIT_DIFF_TOOL=test-tool git difftool --no-prompt branch >actual &&
 139        test_cmp expect actual &&
 140
 141        test_config diff.tool bogus-tool &&
 142        test_config merge.tool bogus-tool &&
 143        GIT_DIFF_TOOL=bogus-tool \
 144                git difftool --no-prompt --tool=test-tool branch >actual &&
 145        test_cmp expect actual
 146'
 147
 148# Test that we don't have to pass --no-prompt to difftool
 149# when $GIT_DIFFTOOL_NO_PROMPT is true
 150test_expect_success PERL 'GIT_DIFFTOOL_NO_PROMPT variable' '
 151        difftool_test_setup &&
 152        echo branch >expect &&
 153        GIT_DIFFTOOL_NO_PROMPT=true git difftool branch >actual &&
 154        test_cmp expect actual
 155'
 156
 157# git-difftool supports the difftool.prompt variable.
 158# Test that GIT_DIFFTOOL_PROMPT can override difftool.prompt = false
 159test_expect_success PERL 'GIT_DIFFTOOL_PROMPT variable' '
 160        difftool_test_setup &&
 161        test_config difftool.prompt false &&
 162        echo >input &&
 163        GIT_DIFFTOOL_PROMPT=true git difftool branch <input >output &&
 164        prompt=$(tail -1 <output) &&
 165        prompt_given "$prompt"
 166'
 167
 168# Test that we don't have to pass --no-prompt when difftool.prompt is false
 169test_expect_success PERL 'difftool.prompt config variable is false' '
 170        difftool_test_setup &&
 171        test_config difftool.prompt false &&
 172        echo branch >expect &&
 173        git difftool branch >actual &&
 174        test_cmp expect actual
 175'
 176
 177# Test that we don't have to pass --no-prompt when mergetool.prompt is false
 178test_expect_success PERL 'difftool merge.prompt = false' '
 179        difftool_test_setup &&
 180        test_might_fail git config --unset difftool.prompt &&
 181        test_config mergetool.prompt false &&
 182        echo branch >expect &&
 183        git difftool branch >actual &&
 184        test_cmp expect actual
 185'
 186
 187# Test that the -y flag can override difftool.prompt = true
 188test_expect_success PERL 'difftool.prompt can overridden with -y' '
 189        difftool_test_setup &&
 190        test_config difftool.prompt true &&
 191        echo branch >expect &&
 192        git difftool -y branch >actual &&
 193        test_cmp expect actual
 194'
 195
 196# Test that the --prompt flag can override difftool.prompt = false
 197test_expect_success PERL 'difftool.prompt can overridden with --prompt' '
 198        difftool_test_setup &&
 199        test_config difftool.prompt false &&
 200        echo >input &&
 201        git difftool --prompt branch <input >output &&
 202        prompt=$(tail -1 <output) &&
 203        prompt_given "$prompt"
 204'
 205
 206# Test that the last flag passed on the command-line wins
 207test_expect_success PERL 'difftool last flag wins' '
 208        difftool_test_setup &&
 209        echo branch >expect &&
 210        git difftool --prompt --no-prompt branch >actual &&
 211        test_cmp expect actual &&
 212        echo >input &&
 213        git difftool --no-prompt --prompt branch <input >output &&
 214        prompt=$(tail -1 <output) &&
 215        prompt_given "$prompt"
 216'
 217
 218# git-difftool falls back to git-mergetool config variables
 219# so test that behavior here
 220test_expect_success PERL 'difftool + mergetool config variables' '
 221        test_config merge.tool test-tool &&
 222        test_config mergetool.test-tool.cmd "cat \$LOCAL" &&
 223        echo branch >expect &&
 224        git difftool --no-prompt branch >actual &&
 225        test_cmp expect actual &&
 226
 227        # set merge.tool to something bogus, diff.tool to test-tool
 228        test_config merge.tool bogus-tool &&
 229        test_config diff.tool test-tool &&
 230        git difftool --no-prompt branch >actual &&
 231        test_cmp expect actual
 232'
 233
 234test_expect_success PERL 'difftool.<tool>.path' '
 235        test_config difftool.tkdiff.path echo &&
 236        git difftool --tool=tkdiff --no-prompt branch >output &&
 237        lines=$(grep file output | wc -l) &&
 238        test "$lines" -eq 1
 239'
 240
 241test_expect_success PERL 'difftool --extcmd=cat' '
 242        echo branch >expect &&
 243        echo master >>expect &&
 244        git difftool --no-prompt --extcmd=cat branch >actual &&
 245        test_cmp expect actual
 246'
 247
 248test_expect_success PERL 'difftool --extcmd cat' '
 249        echo branch >expect &&
 250        echo master >>expect &&
 251        git difftool --no-prompt --extcmd=cat branch >actual &&
 252        test_cmp expect actual
 253'
 254
 255test_expect_success PERL 'difftool -x cat' '
 256        echo branch >expect &&
 257        echo master >>expect &&
 258        git difftool --no-prompt -x cat branch >actual &&
 259        test_cmp expect actual
 260'
 261
 262test_expect_success PERL 'difftool --extcmd echo arg1' '
 263        echo file >expect &&
 264        git difftool --no-prompt \
 265                --extcmd sh\ -c\ \"echo\ \$1\" branch >actual &&
 266        test_cmp expect actual
 267'
 268
 269test_expect_success PERL 'difftool --extcmd cat arg1' '
 270        echo master >expect &&
 271        git difftool --no-prompt \
 272                --extcmd sh\ -c\ \"cat\ \$1\" branch >actual &&
 273        test_cmp expect actual
 274'
 275
 276test_expect_success PERL 'difftool --extcmd cat arg2' '
 277        echo branch >expect &&
 278        git difftool --no-prompt \
 279                --extcmd sh\ -c\ \"cat\ \$2\" branch >actual &&
 280        test_cmp expect actual
 281'
 282
 283# Create a second file on master and a different version on branch
 284test_expect_success PERL 'setup with 2 files different' '
 285        echo m2 >file2 &&
 286        git add file2 &&
 287        git commit -m "added file2" &&
 288
 289        git checkout branch &&
 290        echo br2 >file2 &&
 291        git add file2 &&
 292        git commit -a -m "branch changed file2" &&
 293        git checkout master
 294'
 295
 296test_expect_success PERL 'say no to the first file' '
 297        (echo n && echo) >input &&
 298        git difftool -x cat branch <input >output &&
 299        stdin_contains m2 <output &&
 300        stdin_contains br2 <output &&
 301        stdin_doesnot_contain master <output &&
 302        stdin_doesnot_contain branch <output
 303'
 304
 305test_expect_success PERL 'say no to the second file' '
 306        (echo && echo n) >input &&
 307        git difftool -x cat branch <input >output &&
 308        stdin_contains master <output &&
 309        stdin_contains branch  <output &&
 310        stdin_doesnot_contain m2 <output &&
 311        stdin_doesnot_contain br2 <output
 312'
 313
 314test_expect_success PERL 'difftool --tool-help' '
 315        git difftool --tool-help >output &&
 316        stdin_contains tool <output
 317'
 318
 319test_expect_success PERL 'setup change in subdirectory' '
 320        git checkout master &&
 321        mkdir sub &&
 322        echo master >sub/sub &&
 323        git add sub/sub &&
 324        git commit -m "added sub/sub" &&
 325        echo test >>file &&
 326        echo test >>sub/sub &&
 327        git add . &&
 328        git commit -m "modified both"
 329'
 330
 331test_expect_success PERL 'difftool -d' '
 332        git difftool -d --extcmd ls branch >output &&
 333        stdin_contains sub <output &&
 334        stdin_contains file <output
 335'
 336
 337test_expect_success PERL 'difftool --dir-diff' '
 338        git difftool --dir-diff --extcmd ls branch >output &&
 339        stdin_contains sub <output &&
 340        stdin_contains file <output
 341'
 342
 343write_script .git/CHECK_SYMLINKS <<\EOF
 344for f in file file2 sub/sub
 345do
 346        echo "$f"
 347        readlink "$2/$f"
 348done >actual
 349EOF
 350
 351test_expect_success PERL,SYMLINKS 'difftool --dir-diff --symlink without unstaged changes' '
 352        cat >expect <<-EOF &&
 353        file
 354        $(pwd)/file
 355        file2
 356        $(pwd)/file2
 357        sub/sub
 358        $(pwd)/sub/sub
 359        EOF
 360        git difftool --dir-diff --symlink \
 361                --extcmd "./.git/CHECK_SYMLINKS" branch HEAD &&
 362        test_cmp actual expect
 363'
 364
 365test_expect_success PERL 'difftool --dir-diff ignores --prompt' '
 366        git difftool --dir-diff --prompt --extcmd ls branch >output &&
 367        stdin_contains sub <output &&
 368        stdin_contains file <output
 369'
 370
 371test_expect_success PERL 'difftool --dir-diff from subdirectory' '
 372        (
 373                cd sub &&
 374                git difftool --dir-diff --extcmd ls branch >output &&
 375                stdin_contains sub <output &&
 376                stdin_contains file <output
 377        )
 378'
 379
 380test_done