t/t7810-grep.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2006 Junio C Hamano
   4 #
   5
   6 test_description='git grep various.
   7 '
   8
   9 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
  10 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
  11
  12 . ./test-lib.sh
  13
  14 test_invalid_grep_expression() {
  15         params="$@" &&
  16         test_expect_success "invalid expression: grep $params" '
  17                 test_must_fail git grep $params -- nonexisting
  18         '
  19 }
  20
  21 cat >hello.c <<EOF
  22 #include <assert.h>
  23 #include <stdio.h>
  24
  25 int main(int argc, const char **argv)
  26 {
  27         printf("Hello world.\n");
  28         return 0;
  29         /* char ?? */
  30 }
  31 EOF
  32
  33 test_expect_success setup '
  34         cat >file <<-\EOF &&
  35         foo mmap bar
  36         foo_mmap bar
  37         foo_mmap bar mmap
  38         foo mmap bar_mmap
  39         foo_mmap bar mmap baz
  40         EOF
  41         cat >hello_world <<-\EOF &&
  42         Hello world
  43         HeLLo world
  44         Hello_world
  45         HeLLo_world
  46         EOF
  47         cat >ab <<-\EOF &&
  48         a+b*c
  49         a+bc
  50         abc
  51         EOF
  52         cat >d0 <<-\EOF &&
  53         d
  54         0
  55         EOF
  56         echo vvv >v &&
  57         echo ww w >w &&
  58         echo x x xx x >x &&
  59         echo y yy >y &&
  60         echo zzz > z &&
  61         mkdir t &&
  62         echo test >t/t &&
  63         echo vvv >t/v &&
  64         mkdir t/a &&
  65         echo vvv >t/a/v &&
  66         qz_to_tab_space >space <<-\EOF &&
  67         line without leading space1
  68         Zline with leading space1
  69         Zline with leading space2
  70         Zline with leading space3
  71         line without leading space2
  72         EOF
  73         cat >hello.ps1 <<-\EOF &&
  74         # No-op.
  75         function dummy() {}
  76
  77         # Say hello.
  78         function hello() {
  79           echo "Hello world."
  80           echo "Hello again."
  81         } # hello
  82
  83         # Still a no-op.
  84         function dummy() {}
  85         EOF
  86         if test_have_prereq FUNNYNAMES
  87         then
  88                 echo unusual >"\"unusual\" pathname" &&
  89                 echo unusual >"t/nested \"unusual\" pathname"
  90         fi &&
  91         git add . &&
  92         test_tick &&
  93         git commit -m initial
  94 '
  95
  96 test_expect_success 'grep should not segfault with a bad input' '
  97         test_must_fail git grep "("
  98 '
  99
 100 test_invalid_grep_expression --and -e A
 101
 102 test_pattern_type () {
 103         H=$1 &&
 104         HC=$2 &&
 105         L=$3 &&
 106         type=$4 &&
 107         shift 4 &&
 108
 109         expected_str= &&
 110         case "$type" in
 111         BRE)
 112                 expected_str="${HC}ab:a+bc"
 113                 ;;
 114         ERE)
 115                 expected_str="${HC}ab:abc"
 116                 ;;
 117         FIX)
 118                 expected_str="${HC}ab:a+b*c"
 119                 ;;
 120         *)
 121                 BUG "unknown pattern type '$type'"
 122                 ;;
 123         esac &&
 124         config_str="$@" &&
 125
 126         test_expect_success "grep $L with '$config_str' interpreted as $type" '
 127                 echo $expected_str >expected &&
 128                 git $config_str grep "a+b*c" $H ab >actual &&
 129                 test_cmp expected actual
 130         '
 131 }
 132
 133 for H in HEAD ''
 134 do
 135         case "$H" in
 136         HEAD)   HC='HEAD:' L='HEAD' ;;
 137         '')     HC= L='in working tree' ;;
 138         esac
 139
 140         test_expect_success "grep -w $L" '
 141                 cat >expected <<-EOF &&
 142                 ${HC}file:1:foo mmap bar
 143                 ${HC}file:3:foo_mmap bar mmap
 144                 ${HC}file:4:foo mmap bar_mmap
 145                 ${HC}file:5:foo_mmap bar mmap baz
 146                 EOF
 147                 git -c grep.linenumber=false grep -n -w -e mmap $H >actual &&
 148                 test_cmp expected actual
 149         '
 150
 151         test_expect_success "grep -w $L (with --column)" '
 152                 cat >expected <<-EOF &&
 153                 ${HC}file:5:foo mmap bar
 154                 ${HC}file:14:foo_mmap bar mmap
 155                 ${HC}file:5:foo mmap bar_mmap
 156                 ${HC}file:14:foo_mmap bar mmap baz
 157                 EOF
 158                 git grep --column -w -e mmap $H >actual &&
 159                 test_cmp expected actual
 160         '
 161
 162         test_expect_success "grep -w $L (with --column, extended OR)" '
 163                 cat >expected <<-EOF &&
 164                 ${HC}file:14:foo_mmap bar mmap
 165                 ${HC}file:19:foo_mmap bar mmap baz
 166                 EOF
 167                 git grep --column -w -e mmap$ --or -e baz $H >actual &&
 168                 test_cmp expected actual
 169         '
 170
 171         test_expect_success "grep -w $L (with --column, --invert-match)" '
 172                 cat >expected <<-EOF &&
 173                 ${HC}file:1:foo mmap bar
 174                 ${HC}file:1:foo_mmap bar
 175                 ${HC}file:1:foo_mmap bar mmap
 176                 ${HC}file:1:foo mmap bar_mmap
 177                 EOF
 178                 git grep --column --invert-match -w -e baz $H -- file >actual &&
 179                 test_cmp expected actual
 180         '
 181
 182         test_expect_success "grep $L (with --column, --invert-match, extended OR)" '
 183                 cat >expected <<-EOF &&
 184                 ${HC}hello_world:6:HeLLo_world
 185                 EOF
 186                 git grep --column --invert-match -e ll --or --not -e _ $H -- hello_world \
 187                         >actual &&
 188                 test_cmp expected actual
 189         '
 190
 191         test_expect_success "grep $L (with --column, --invert-match, extended AND)" '
 192                 cat >expected <<-EOF &&
 193                 ${HC}hello_world:3:Hello world
 194                 ${HC}hello_world:3:Hello_world
 195                 ${HC}hello_world:6:HeLLo_world
 196                 EOF
 197                 git grep --column --invert-match --not -e _ --and --not -e ll $H -- hello_world \
 198                         >actual &&
 199                 test_cmp expected actual
 200         '
 201
 202         test_expect_success "grep $L (with --column, double-negation)" '
 203                 cat >expected <<-EOF &&
 204                 ${HC}file:1:foo_mmap bar mmap baz
 205                 EOF
 206                 git grep --column --not \( --not -e foo --or --not -e baz \) $H -- file \
 207                         >actual &&
 208                 test_cmp expected actual
 209         '
 210
 211         test_expect_success "grep -w $L (with --column, -C)" '
 212                 cat >expected <<-EOF &&
 213                 ${HC}file:5:foo mmap bar
 214                 ${HC}file-foo_mmap bar
 215                 ${HC}file:14:foo_mmap bar mmap
 216                 ${HC}file:5:foo mmap bar_mmap
 217                 ${HC}file:14:foo_mmap bar mmap baz
 218                 EOF
 219                 git grep --column -w -C1 -e mmap $H >actual &&
 220                 test_cmp expected actual
 221         '
 222
 223         test_expect_success "grep -w $L (with --line-number, --column)" '
 224                 cat >expected <<-EOF &&
 225                 ${HC}file:1:5:foo mmap bar
 226                 ${HC}file:3:14:foo_mmap bar mmap
 227                 ${HC}file:4:5:foo mmap bar_mmap
 228                 ${HC}file:5:14:foo_mmap bar mmap baz
 229                 EOF
 230                 git grep -n --column -w -e mmap $H >actual &&
 231                 test_cmp expected actual
 232         '
 233
 234         test_expect_success "grep -w $L (with non-extended patterns, --column)" '
 235                 cat >expected <<-EOF &&
 236                 ${HC}file:5:foo mmap bar
 237                 ${HC}file:10:foo_mmap bar
 238                 ${HC}file:10:foo_mmap bar mmap
 239                 ${HC}file:5:foo mmap bar_mmap
 240                 ${HC}file:10:foo_mmap bar mmap baz
 241                 EOF
 242                 git grep --column -w -e bar -e mmap $H >actual &&
 243                 test_cmp expected actual
 244         '
 245
 246         test_expect_success "grep -w $L" '
 247                 cat >expected <<-EOF &&
 248                 ${HC}file:1:foo mmap bar
 249                 ${HC}file:3:foo_mmap bar mmap
 250                 ${HC}file:4:foo mmap bar_mmap
 251                 ${HC}file:5:foo_mmap bar mmap baz
 252                 EOF
 253                 git -c grep.linenumber=true grep -w -e mmap $H >actual &&
 254                 test_cmp expected actual
 255         '
 256
 257         test_expect_success "grep -w $L" '
 258                 cat >expected <<-EOF &&
 259                 ${HC}file:foo mmap bar
 260                 ${HC}file:foo_mmap bar mmap
 261                 ${HC}file:foo mmap bar_mmap
 262                 ${HC}file:foo_mmap bar mmap baz
 263                 EOF
 264                 git -c grep.linenumber=true grep --no-line-number -w -e mmap $H >actual &&
 265                 test_cmp expected actual
 266         '
 267
 268         test_expect_success "grep -w $L (w)" '
 269                 test_must_fail git grep -n -w -e "^w" $H >actual &&
 270                 test_must_be_empty actual
 271         '
 272
 273         test_expect_success "grep -w $L (x)" '
 274                 cat >expected <<-EOF &&
 275                 ${HC}x:1:x x xx x
 276                 EOF
 277                 git grep -n -w -e "x xx* x" $H >actual &&
 278                 test_cmp expected actual
 279         '
 280
 281         test_expect_success "grep -w $L (y-1)" '
 282                 cat >expected <<-EOF &&
 283                 ${HC}y:1:y yy
 284                 EOF
 285                 git grep -n -w -e "^y" $H >actual &&
 286                 test_cmp expected actual
 287         '
 288
 289         test_expect_success "grep -w $L (y-2)" '
 290                 if git grep -n -w -e "^y y" $H >actual
 291                 then
 292                         echo should not have matched
 293                         cat actual
 294                         false
 295                 else
 296                         test_must_be_empty actual
 297                 fi
 298         '
 299
 300         test_expect_success "grep -w $L (z)" '
 301                 if git grep -n -w -e "^z" $H >actual
 302                 then
 303                         echo should not have matched
 304                         cat actual
 305                         false
 306                 else
 307                         test_must_be_empty actual
 308                 fi
 309         '
 310
 311         test_expect_success "grep $L (with --column, --only-matching)" '
 312                 cat >expected <<-EOF &&
 313                 ${HC}file:1:5:mmap
 314                 ${HC}file:2:5:mmap
 315                 ${HC}file:3:5:mmap
 316                 ${HC}file:3:13:mmap
 317                 ${HC}file:4:5:mmap
 318                 ${HC}file:4:13:mmap
 319                 ${HC}file:5:5:mmap
 320                 ${HC}file:5:13:mmap
 321                 EOF
 322                 git grep --column -n -o -e mmap $H >actual &&
 323                 test_cmp expected actual
 324         '
 325
 326         test_expect_success "grep $L (t-1)" '
 327                 echo "${HC}t/t:1:test" >expected &&
 328                 git grep -n -e test $H >actual &&
 329                 test_cmp expected actual
 330         '
 331
 332         test_expect_success "grep $L (t-2)" '
 333                 echo "${HC}t:1:test" >expected &&
 334                 (
 335                         cd t &&
 336                         git grep -n -e test $H
 337                 ) >actual &&
 338                 test_cmp expected actual
 339         '
 340
 341         test_expect_success "grep $L (t-3)" '
 342                 echo "${HC}t/t:1:test" >expected &&
 343                 (
 344                         cd t &&
 345                         git grep --full-name -n -e test $H
 346                 ) >actual &&
 347                 test_cmp expected actual
 348         '
 349
 350         test_expect_success "grep -c $L (no /dev/null)" '
 351                 ! git grep -c test $H | grep /dev/null
 352         '
 353
 354         test_expect_success "grep --max-depth -1 $L" '
 355                 cat >expected <<-EOF &&
 356                 ${HC}t/a/v:1:vvv
 357                 ${HC}t/v:1:vvv
 358                 ${HC}v:1:vvv
 359                 EOF
 360                 git grep --max-depth -1 -n -e vvv $H >actual &&
 361                 test_cmp expected actual &&
 362                 git grep --recursive -n -e vvv $H >actual &&
 363                 test_cmp expected actual
 364         '
 365
 366         test_expect_success "grep --max-depth 0 $L" '
 367                 cat >expected <<-EOF &&
 368                 ${HC}v:1:vvv
 369                 EOF
 370                 git grep --max-depth 0 -n -e vvv $H >actual &&
 371                 test_cmp expected actual &&
 372                 git grep --no-recursive -n -e vvv $H >actual &&
 373                 test_cmp expected actual
 374         '
 375
 376         test_expect_success "grep --max-depth 0 -- '*' $L" '
 377                 cat >expected <<-EOF &&
 378                 ${HC}t/a/v:1:vvv
 379                 ${HC}t/v:1:vvv
 380                 ${HC}v:1:vvv
 381                 EOF
 382                 git grep --max-depth 0 -n -e vvv $H -- "*" >actual &&
 383                 test_cmp expected actual &&
 384                 git grep --no-recursive -n -e vvv $H -- "*" >actual &&
 385                 test_cmp expected actual
 386         '
 387
 388         test_expect_success "grep --max-depth 1 $L" '
 389                 cat >expected <<-EOF &&
 390                 ${HC}t/v:1:vvv
 391                 ${HC}v:1:vvv
 392                 EOF
 393                 git grep --max-depth 1 -n -e vvv $H >actual &&
 394                 test_cmp expected actual
 395         '
 396
 397         test_expect_success "grep --max-depth 0 -- t $L" '
 398                 cat >expected <<-EOF &&
 399                 ${HC}t/v:1:vvv
 400                 EOF
 401                 git grep --max-depth 0 -n -e vvv $H -- t >actual &&
 402                 test_cmp expected actual &&
 403                 git grep --no-recursive -n -e vvv $H -- t >actual &&
 404                 test_cmp expected actual
 405         '
 406
 407         test_expect_success "grep --max-depth 0 -- . t $L" '
 408                 cat >expected <<-EOF &&
 409                 ${HC}t/v:1:vvv
 410                 ${HC}v:1:vvv
 411                 EOF
 412                 git grep --max-depth 0 -n -e vvv $H -- . t >actual &&
 413                 test_cmp expected actual &&
 414                 git grep --no-recursive -n -e vvv $H -- . t >actual &&
 415                 test_cmp expected actual
 416         '
 417
 418         test_expect_success "grep --max-depth 0 -- t . $L" '
 419                 cat >expected <<-EOF &&
 420                 ${HC}t/v:1:vvv
 421                 ${HC}v:1:vvv
 422                 EOF
 423                 git grep --max-depth 0 -n -e vvv $H -- t . >actual &&
 424                 test_cmp expected actual &&
 425                 git grep --no-recursive -n -e vvv $H -- t . >actual &&
 426                 test_cmp expected actual
 427         '
 428
 429
 430         test_pattern_type "$H" "$HC" "$L" BRE -c grep.extendedRegexp=false
 431         test_pattern_type "$H" "$HC" "$L" ERE -c grep.extendedRegexp=true
 432         test_pattern_type "$H" "$HC" "$L" BRE -c grep.patternType=basic
 433         test_pattern_type "$H" "$HC" "$L" ERE -c grep.patternType=extended
 434         test_pattern_type "$H" "$HC" "$L" FIX -c grep.patternType=fixed
 435
 436         test_expect_success PCRE "grep $L with grep.patterntype=perl" '
 437                 echo "${HC}ab:a+b*c" >expected &&
 438                 git -c grep.patterntype=perl grep "a\x{2b}b\x{2a}c" $H ab >actual &&
 439                 test_cmp expected actual
 440         '
 441
 442         test_expect_success !FAIL_PREREQS,!PCRE "grep $L with grep.patterntype=perl errors without PCRE" '
 443                 test_must_fail git -c grep.patterntype=perl grep "foo.*bar"
 444         '
 445
 446         test_pattern_type "$H" "$HC" "$L" ERE \
 447                 -c grep.patternType=default \
 448                 -c grep.extendedRegexp=true
 449         test_pattern_type "$H" "$HC" "$L" ERE \
 450                 -c grep.extendedRegexp=true \
 451                 -c grep.patternType=default
 452         test_pattern_type "$H" "$HC" "$L" ERE \
 453                 -c grep.patternType=extended \
 454                 -c grep.extendedRegexp=false
 455         test_pattern_type "$H" "$HC" "$L" BRE \
 456                 -c grep.patternType=basic \
 457                 -c grep.extendedRegexp=true
 458         test_pattern_type "$H" "$HC" "$L" ERE \
 459                 -c grep.extendedRegexp=false \
 460                 -c grep.patternType=extended
 461         test_pattern_type "$H" "$HC" "$L" BRE \
 462                 -c grep.extendedRegexp=true \
 463                 -c grep.patternType=basic
 464
 465         # grep.extendedRegexp is last-one-wins
 466         test_pattern_type "$H" "$HC" "$L" BRE \
 467                 -c grep.extendedRegexp=true \
 468                 -c grep.extendedRegexp=false
 469
 470         # grep.patternType=basic pays no attention to grep.extendedRegexp
 471         test_pattern_type "$H" "$HC" "$L" BRE \
 472                 -c grep.extendedRegexp=true \
 473                 -c grep.patternType=basic \
 474                 -c grep.extendedRegexp=false
 475
 476         # grep.patternType=extended pays no attention to grep.extendedRegexp
 477         test_pattern_type "$H" "$HC" "$L" ERE \
 478                 -c grep.extendedRegexp=true \
 479                 -c grep.patternType=extended \
 480                 -c grep.extendedRegexp=false
 481
 482         # grep.extendedRegexp is used with a last-one-wins grep.patternType=default
 483         test_pattern_type "$H" "$HC" "$L" ERE \
 484                 -c grep.patternType=fixed \
 485                 -c grep.extendedRegexp=true \
 486                 -c grep.patternType=default
 487
 488         # grep.extendedRegexp is used with earlier grep.patternType=default
 489         test_pattern_type "$H" "$HC" "$L" ERE \
 490                 -c grep.extendedRegexp=false \
 491                 -c grep.patternType=default \
 492                 -c grep.extendedRegexp=true
 493
 494         # grep.extendedRegexp is used with a last-one-loses grep.patternType=default
 495         test_pattern_type "$H" "$HC" "$L" ERE \
 496                 -c grep.extendedRegexp=false \
 497                 -c grep.extendedRegexp=true \
 498                 -c grep.patternType=default
 499
 500         # grep.extendedRegexp and grep.patternType are both last-one-wins independently
 501         test_pattern_type "$H" "$HC" "$L" BRE \
 502                 -c grep.patternType=default \
 503                 -c grep.extendedRegexp=true \
 504                 -c grep.patternType=basic
 505
 506         # grep.patternType=extended and grep.patternType=default
 507         test_pattern_type "$H" "$HC" "$L" BRE \
 508                 -c grep.patternType=extended \
 509                 -c grep.patternType=default
 510
 511         # grep.patternType=[extended -> default -> fixed] (BRE)" '
 512         test_pattern_type "$H" "$HC" "$L" FIX \
 513                 -c grep.patternType=extended \
 514                 -c grep.patternType=default \
 515                 -c grep.patternType=fixed
 516
 517         test_expect_success "grep --count $L" '
 518                 echo ${HC}ab:3 >expected &&
 519                 git grep --count -e b $H -- ab >actual &&
 520                 test_cmp expected actual
 521         '
 522
 523         test_expect_success "grep --count -h $L" '
 524                 echo 3 >expected &&
 525                 git grep --count -h -e b $H -- ab >actual &&
 526                 test_cmp expected actual
 527         '
 528
 529         test_expect_success FUNNYNAMES "grep $L should quote unusual pathnames" '
 530                 cat >expected <<-EOF &&
 531                 ${HC}"\"unusual\" pathname":unusual
 532                 ${HC}"t/nested \"unusual\" pathname":unusual
 533                 EOF
 534                 git grep unusual $H >actual &&
 535                 test_cmp expected actual
 536         '
 537
 538         test_expect_success FUNNYNAMES "grep $L in subdir should quote unusual relative pathnames" '
 539                 cat >expected <<-EOF &&
 540                 ${HC}"nested \"unusual\" pathname":unusual
 541                 EOF
 542                 (
 543                         cd t &&
 544                         git grep unusual $H
 545                 ) >actual &&
 546                 test_cmp expected actual
 547         '
 548
 549         test_expect_success FUNNYNAMES "grep -z $L with unusual pathnames" '
 550                 cat >expected <<-EOF &&
 551                 ${HC}"unusual" pathname:unusual
 552                 ${HC}t/nested "unusual" pathname:unusual
 553                 EOF
 554                 git grep -z unusual $H >actual &&
 555                 tr "\0" ":" <actual >actual-replace-null &&
 556                 test_cmp expected actual-replace-null
 557         '
 558
 559         test_expect_success FUNNYNAMES "grep -z $L in subdir with unusual relative pathnames" '
 560                 cat >expected <<-EOF &&
 561                 ${HC}nested "unusual" pathname:unusual
 562                 EOF
 563                 (
 564                         cd t &&
 565                         git grep -z unusual $H
 566                 ) >actual &&
 567                 tr "\0" ":" <actual >actual-replace-null &&
 568                 test_cmp expected actual-replace-null
 569         '
 570 done
 571
 572 cat >expected <<EOF
 573 file
 574 EOF
 575 test_expect_success 'grep -l -C' '
 576         git grep -l -C1 foo >actual &&
 577         test_cmp expected actual
 578 '
 579
 580 cat >expected <<EOF
 581 file:5
 582 EOF
 583 test_expect_success 'grep -c -C' '
 584         git grep -c -C1 foo >actual &&
 585         test_cmp expected actual
 586 '
 587
 588 test_expect_success 'grep -L -C' '
 589         git ls-files >expected &&
 590         git grep -L -C1 nonexistent_string >actual &&
 591         test_cmp expected actual
 592 '
 593
 594 test_expect_success 'grep --files-without-match --quiet' '
 595         git grep --files-without-match --quiet nonexistent_string >actual &&
 596         test_must_be_empty actual
 597 '
 598
 599 test_expect_success 'grep --max-count 0 (must exit with non-zero)' '
 600         test_must_fail git grep --max-count 0 foo >actual &&
 601         test_must_be_empty actual
 602 '
 603
 604 test_expect_success 'grep --max-count 3' '
 605         cat >expected <<-EOF &&
 606         file:foo mmap bar
 607         file:foo_mmap bar
 608         file:foo_mmap bar mmap
 609         EOF
 610         git grep --max-count 3 foo >actual &&
 611         test_cmp expected actual
 612 '
 613
 614 test_expect_success 'grep --max-count -1 (no limit)' '
 615         cat >expected <<-EOF &&
 616         file:foo mmap bar
 617         file:foo_mmap bar
 618         file:foo_mmap bar mmap
 619         file:foo mmap bar_mmap
 620         file:foo_mmap bar mmap baz
 621         EOF
 622         git grep --max-count -1 foo >actual &&
 623         test_cmp expected actual
 624 '
 625
 626 test_expect_success 'grep --max-count 1 --context 2' '
 627         cat >expected <<-EOF &&
 628         file-foo mmap bar
 629         file:foo_mmap bar
 630         file-foo_mmap bar mmap
 631         EOF
 632         git grep --max-count 1 --context 1 foo_mmap >actual &&
 633         test_cmp expected actual
 634 '
 635
 636 test_expect_success 'grep --max-count 1 --show-function' '
 637         cat >expected <<-EOF &&
 638         hello.ps1=function hello() {
 639         hello.ps1:  echo "Hello world."
 640         EOF
 641         git grep --max-count 1 --show-function Hello hello.ps1 >actual &&
 642         test_cmp expected actual
 643 '
 644
 645 test_expect_success 'grep --max-count 2 --show-function' '
 646         cat >expected <<-EOF &&
 647         hello.ps1=function hello() {
 648         hello.ps1:  echo "Hello world."
 649         hello.ps1:  echo "Hello again."
 650         EOF
 651         git grep --max-count 2 --show-function Hello hello.ps1 >actual &&
 652         test_cmp expected actual
 653 '
 654
 655 test_expect_success 'grep --max-count 1 --count' '
 656         cat >expected <<-EOF &&
 657         hello.ps1:1
 658         EOF
 659         git grep --max-count 1 --count Hello hello.ps1 >actual &&
 660         test_cmp expected actual
 661 '
 662
 663 test_expect_success 'grep --max-count 1 (multiple files)' '
 664         cat >expected <<-EOF &&
 665         hello.c:#include <stdio.h>
 666         hello.ps1:# No-op.
 667         EOF
 668         git grep --max-count 1 -e o -- hello.\* >actual &&
 669         test_cmp expected actual
 670 '
 671
 672 test_expect_success 'grep --max-count 1 --context 1 (multiple files)' '
 673         cat >expected <<-EOF &&
 674         hello.c-#include <assert.h>
 675         hello.c:#include <stdio.h>
 676         hello.c-
 677         --
 678         hello.ps1:# No-op.
 679         hello.ps1-function dummy() {}
 680         EOF
 681         git grep --max-count 1 --context 1 -e o -- hello.\* >actual &&
 682         test_cmp expected actual
 683 '
 684
 685 cat >expected <<EOF
 686 file:foo mmap bar_mmap
 687 EOF
 688
 689 test_expect_success 'grep -e A --and -e B' '
 690         git grep -e "foo mmap" --and -e bar_mmap >actual &&
 691         test_cmp expected actual
 692 '
 693
 694 cat >expected <<EOF
 695 file:foo_mmap bar mmap
 696 file:foo_mmap bar mmap baz
 697 EOF
 698
 699
 700 test_expect_success 'grep ( -e A --or -e B ) --and -e B' '
 701         git grep \( -e foo_ --or -e baz \) \
 702                 --and -e " mmap" >actual &&
 703         test_cmp expected actual
 704 '
 705
 706 cat >expected <<EOF
 707 file:foo mmap bar
 708 EOF
 709
 710 test_expect_success 'grep -e A --and --not -e B' '
 711         git grep -e "foo mmap" --and --not -e bar_mmap >actual &&
 712         test_cmp expected actual
 713 '
 714
 715 test_expect_success 'grep should ignore GREP_OPTIONS' '
 716         GREP_OPTIONS=-v git grep " mmap bar\$" >actual &&
 717         test_cmp expected actual
 718 '
 719
 720 test_expect_success 'grep -f, non-existent file' '
 721         test_must_fail git grep -f patterns
 722 '
 723
 724 cat >expected <<EOF
 725 file:foo mmap bar
 726 file:foo_mmap bar
 727 file:foo_mmap bar mmap
 728 file:foo mmap bar_mmap
 729 file:foo_mmap bar mmap baz
 730 EOF
 731
 732 cat >pattern <<EOF
 733 mmap
 734 EOF
 735
 736 test_expect_success 'grep -f, one pattern' '
 737         git grep -f pattern >actual &&
 738         test_cmp expected actual
 739 '
 740
 741 cat >expected <<EOF
 742 file:foo mmap bar
 743 file:foo_mmap bar
 744 file:foo_mmap bar mmap
 745 file:foo mmap bar_mmap
 746 file:foo_mmap bar mmap baz
 747 t/a/v:vvv
 748 t/v:vvv
 749 v:vvv
 750 EOF
 751
 752 cat >patterns <<EOF
 753 mmap
 754 vvv
 755 EOF
 756
 757 test_expect_success 'grep -f, multiple patterns' '
 758         git grep -f patterns >actual &&
 759         test_cmp expected actual
 760 '
 761
 762 test_expect_success 'grep, multiple patterns' '
 763         git grep "$(cat patterns)" >actual &&
 764         test_cmp expected actual
 765 '
 766
 767 cat >expected <<EOF
 768 file:foo mmap bar
 769 file:foo_mmap bar
 770 file:foo_mmap bar mmap
 771 file:foo mmap bar_mmap
 772 file:foo_mmap bar mmap baz
 773 t/a/v:vvv
 774 t/v:vvv
 775 v:vvv
 776 EOF
 777
 778 cat >patterns <<EOF
 779
 780 mmap
 781
 782 vvv
 783
 784 EOF
 785
 786 test_expect_success 'grep -f, ignore empty lines' '
 787         git grep -f patterns >actual &&
 788         test_cmp expected actual
 789 '
 790
 791 test_expect_success 'grep -f, ignore empty lines, read patterns from stdin' '
 792         git grep -f - <patterns >actual &&
 793         test_cmp expected actual
 794 '
 795
 796 cat >expected <<EOF
 797 y:y yy
 798 --
 799 z:zzz
 800 EOF
 801
 802 test_expect_success 'grep -q, silently report matches' '
 803         git grep -q mmap >actual &&
 804         test_must_be_empty actual &&
 805         test_must_fail git grep -q qfwfq >actual &&
 806         test_must_be_empty actual
 807 '
 808
 809 test_expect_success 'grep -C1 hunk mark between files' '
 810         git grep -C1 "^[yz]" >actual &&
 811         test_cmp expected actual
 812 '
 813
 814 test_expect_success 'log grep setup' '
 815         test_commit --append --author "With * Asterisk <xyzzy@frotz.com>" second file a &&
 816         test_commit --append third file a &&
 817         test_commit --append --author "Night Fall <nitfol@frobozz.com>" fourth file a
 818 '
 819
 820 test_expect_success 'log grep (1)' '
 821         git log --author=author --pretty=tformat:%s >actual &&
 822         {
 823                 echo third && echo initial
 824         } >expect &&
 825         test_cmp expect actual
 826 '
 827
 828 test_expect_success 'log grep (2)' '
 829         git log --author=" * " -F --pretty=tformat:%s >actual &&
 830         {
 831                 echo second
 832         } >expect &&
 833         test_cmp expect actual
 834 '
 835
 836 test_expect_success 'log grep (3)' '
 837         git log --author="^A U" --pretty=tformat:%s >actual &&
 838         {
 839                 echo third && echo initial
 840         } >expect &&
 841         test_cmp expect actual
 842 '
 843
 844 test_expect_success 'log grep (4)' '
 845         git log --author="frotz\.com>$" --pretty=tformat:%s >actual &&
 846         {
 847                 echo second
 848         } >expect &&
 849         test_cmp expect actual
 850 '
 851
 852 test_expect_success 'log grep (5)' '
 853         git log --author=Thor -F --pretty=tformat:%s >actual &&
 854         {
 855                 echo third && echo initial
 856         } >expect &&
 857         test_cmp expect actual
 858 '
 859
 860 test_expect_success 'log grep (6)' '
 861         git log --author=-0700  --pretty=tformat:%s >actual &&
 862         test_must_be_empty actual
 863 '
 864
 865 test_expect_success 'log grep (7)' '
 866         git log -g --grep-reflog="commit: third" --pretty=tformat:%s >actual &&
 867         echo third >expect &&
 868         test_cmp expect actual
 869 '
 870
 871 test_expect_success 'log grep (8)' '
 872         git log -g --grep-reflog="commit: third" --grep-reflog="commit: second" --pretty=tformat:%s >actual &&
 873         {
 874                 echo third && echo second
 875         } >expect &&
 876         test_cmp expect actual
 877 '
 878
 879 test_expect_success 'log grep (9)' '
 880         git log -g --grep-reflog="commit: third" --author="Thor" --pretty=tformat:%s >actual &&
 881         echo third >expect &&
 882         test_cmp expect actual
 883 '
 884
 885 test_expect_success 'log grep (9)' '
 886         git log -g --grep-reflog="commit: third" --author="non-existent" --pretty=tformat:%s >actual &&
 887         test_must_be_empty actual
 888 '
 889
 890 test_expect_success 'log --grep-reflog can only be used under -g' '
 891         test_must_fail git log --grep-reflog="commit: third"
 892 '
 893
 894 test_expect_success 'log with multiple --grep uses union' '
 895         git log --grep=i --grep=r --format=%s >actual &&
 896         {
 897                 echo fourth && echo third && echo initial
 898         } >expect &&
 899         test_cmp expect actual
 900 '
 901
 902 test_expect_success 'log --all-match with multiple --grep uses intersection' '
 903         git log --all-match --grep=i --grep=r --format=%s >actual &&
 904         {
 905                 echo third
 906         } >expect &&
 907         test_cmp expect actual
 908 '
 909
 910 test_expect_success 'log with multiple --author uses union' '
 911         git log --author="Thor" --author="Aster" --format=%s >actual &&
 912         {
 913             echo third && echo second && echo initial
 914         } >expect &&
 915         test_cmp expect actual
 916 '
 917
 918 test_expect_success 'log --all-match with multiple --author still uses union' '
 919         git log --all-match --author="Thor" --author="Aster" --format=%s >actual &&
 920         {
 921             echo third && echo second && echo initial
 922         } >expect &&
 923         test_cmp expect actual
 924 '
 925
 926 test_expect_success 'log --grep --author uses intersection' '
 927         # grep matches only third and fourth
 928         # author matches only initial and third
 929         git log --author="A U Thor" --grep=r --format=%s >actual &&
 930         {
 931                 echo third
 932         } >expect &&
 933         test_cmp expect actual
 934 '
 935
 936 test_expect_success 'log --grep --grep --author takes union of greps and intersects with author' '
 937         # grep matches initial and second but not third
 938         # author matches only initial and third
 939         git log --author="A U Thor" --grep=s --grep=l --format=%s >actual &&
 940         {
 941                 echo initial
 942         } >expect &&
 943         test_cmp expect actual
 944 '
 945
 946 test_expect_success 'log ---all-match -grep --author --author still takes union of authors and intersects with grep' '
 947         # grep matches only initial and third
 948         # author matches all but second
 949         git log --all-match --author="Thor" --author="Night" --grep=i --format=%s >actual &&
 950         {
 951             echo third && echo initial
 952         } >expect &&
 953         test_cmp expect actual
 954 '
 955
 956 test_expect_success 'log --grep --author --author takes union of authors and intersects with grep' '
 957         # grep matches only initial and third
 958         # author matches all but second
 959         git log --author="Thor" --author="Night" --grep=i --format=%s >actual &&
 960         {
 961             echo third && echo initial
 962         } >expect &&
 963         test_cmp expect actual
 964 '
 965
 966 test_expect_success 'log --all-match --grep --grep --author takes intersection' '
 967         # grep matches only third
 968         # author matches only initial and third
 969         git log --all-match --author="A U Thor" --grep=i --grep=r --format=%s >actual &&
 970         {
 971                 echo third
 972         } >expect &&
 973         test_cmp expect actual
 974 '
 975
 976 test_expect_success 'log --author does not search in timestamp' '
 977         git log --author="$GIT_AUTHOR_DATE" >actual &&
 978         test_must_be_empty actual
 979 '
 980
 981 test_expect_success 'log --committer does not search in timestamp' '
 982         git log --committer="$GIT_COMMITTER_DATE" >actual &&
 983         test_must_be_empty actual
 984 '
 985
 986 test_expect_success 'grep with CE_VALID file' '
 987         git update-index --assume-unchanged t/t &&
 988         rm t/t &&
 989         test "$(git grep test)" = "t/t:test" &&
 990         git update-index --no-assume-unchanged t/t &&
 991         git checkout t/t
 992 '
 993
 994 cat >expected <<EOF
 995 hello.c=#include <stdio.h>
 996 hello.c:        return 0;
 997 EOF
 998
 999 test_expect_success 'grep -p with userdiff' '
1000         git config diff.custom.funcname "^#" &&
1001         echo "hello.c diff=custom" >.gitattributes &&
1002         git grep -p return >actual &&
1003         test_cmp expected actual
1004 '
1005
1006 cat >expected <<EOF
1007 hello.c=int main(int argc, const char **argv)
1008 hello.c:        return 0;
1009 EOF
1010
1011 test_expect_success 'grep -p' '
1012         rm -f .gitattributes &&
1013         git grep -p return >actual &&
1014         test_cmp expected actual
1015 '
1016
1017 cat >expected <<EOF
1018 hello.c-#include <stdio.h>
1019 hello.c-
1020 hello.c=int main(int argc, const char **argv)
1021 hello.c-{
1022 hello.c-        printf("Hello world.\n");
1023 hello.c:        return 0;
1024 EOF
1025
1026 test_expect_success 'grep -p -B5' '
1027         git grep -p -B5 return >actual &&
1028         test_cmp expected actual
1029 '
1030
1031 cat >expected <<EOF
1032 hello.c=int main(int argc, const char **argv)
1033 hello.c-{
1034 hello.c-        printf("Hello world.\n");
1035 hello.c:        return 0;
1036 hello.c-        /* char ?? */
1037 hello.c-}
1038 EOF
1039
1040 test_expect_success 'grep -W' '
1041         git grep -W return >actual &&
1042         test_cmp expected actual
1043 '
1044
1045 cat >expected <<EOF
1046 hello.c-#include <assert.h>
1047 hello.c:#include <stdio.h>
1048 EOF
1049
1050 test_expect_success 'grep -W shows no trailing empty lines' '
1051         git grep -W stdio >actual &&
1052         test_cmp expected actual
1053 '
1054
1055 test_expect_success 'grep -W with userdiff' '
1056         test_when_finished "rm -f .gitattributes" &&
1057         git config diff.custom.xfuncname "^function .*$" &&
1058         echo "hello.ps1 diff=custom" >.gitattributes &&
1059         git grep -W echo >function-context-userdiff-actual
1060 '
1061
1062 test_expect_success ' includes preceding comment' '
1063         grep "# Say hello" function-context-userdiff-actual
1064 '
1065
1066 test_expect_success ' includes function line' '
1067         grep "=function hello" function-context-userdiff-actual
1068 '
1069
1070 test_expect_success ' includes matching line' '
1071         grep ":  echo" function-context-userdiff-actual
1072 '
1073
1074 test_expect_success ' includes last line of the function' '
1075         grep "} # hello" function-context-userdiff-actual
1076 '
1077
1078 for threads in $(test_seq 0 10)
1079 do
1080         test_expect_success "grep --threads=$threads & -c grep.threads=$threads" "
1081                 git grep --threads=$threads . >actual.$threads &&
1082                 if test $threads -ge 1
1083                 then
1084                         test_cmp actual.\$(($threads - 1)) actual.$threads
1085                 fi &&
1086                 git -c grep.threads=$threads grep . >actual.$threads &&
1087                 if test $threads -ge 1
1088                 then
1089                         test_cmp actual.\$(($threads - 1)) actual.$threads
1090                 fi
1091         "
1092 done
1093
1094 test_expect_success !PTHREADS,!FAIL_PREREQS \
1095         'grep --threads=N or pack.threads=N warns when no pthreads' '
1096         git grep --threads=2 Hello hello_world 2>err &&
1097         grep ^warning: err >warnings &&
1098         test_line_count = 1 warnings &&
1099         grep -F "no threads support, ignoring --threads" err &&
1100         git -c grep.threads=2 grep Hello hello_world 2>err &&
1101         grep ^warning: err >warnings &&
1102         test_line_count = 1 warnings &&
1103         grep -F "no threads support, ignoring grep.threads" err &&
1104         git -c grep.threads=2 grep --threads=4 Hello hello_world 2>err &&
1105         grep ^warning: err >warnings &&
1106         test_line_count = 2 warnings &&
1107         grep -F "no threads support, ignoring --threads" err &&
1108         grep -F "no threads support, ignoring grep.threads" err &&
1109         git -c grep.threads=0 grep --threads=0 Hello hello_world 2>err &&
1110         test_line_count = 0 err
1111 '
1112
1113 test_expect_success 'grep from a subdirectory to search wider area (1)' '
1114         mkdir -p s &&
1115         (
1116                 cd s && git grep "x x x" ..
1117         )
1118 '
1119
1120 test_expect_success 'grep from a subdirectory to search wider area (2)' '
1121         mkdir -p s &&
1122         (
1123                 cd s &&
1124                 test_expect_code 1 git grep xxyyzz .. >out &&
1125                 test_must_be_empty out
1126         )
1127 '
1128
1129 cat >expected <<EOF
1130 hello.c:int main(int argc, const char **argv)
1131 EOF
1132
1133 test_expect_success 'grep -Fi' '
1134         git grep -Fi "CHAR *" >actual &&
1135         test_cmp expected actual
1136 '
1137
1138 test_expect_success 'outside of git repository' '
1139         rm -fr non &&
1140         mkdir -p non/git/sub &&
1141         echo hello >non/git/file1 &&
1142         echo world >non/git/sub/file2 &&
1143         {
1144                 echo file1:hello &&
1145                 echo sub/file2:world
1146         } >non/expect.full &&
1147         echo file2:world >non/expect.sub &&
1148         (
1149                 GIT_CEILING_DIRECTORIES="$(pwd)/non" &&
1150                 export GIT_CEILING_DIRECTORIES &&
1151                 cd non/git &&
1152                 test_must_fail git grep o &&
1153                 git grep --no-index o >../actual.full &&
1154                 test_cmp ../expect.full ../actual.full &&
1155                 cd sub &&
1156                 test_must_fail git grep o &&
1157                 git grep --no-index o >../../actual.sub &&
1158                 test_cmp ../../expect.sub ../../actual.sub
1159         ) &&
1160
1161         echo ".*o*" >non/git/.gitignore &&
1162         (
1163                 GIT_CEILING_DIRECTORIES="$(pwd)/non" &&
1164                 export GIT_CEILING_DIRECTORIES &&
1165                 cd non/git &&
1166                 test_must_fail git grep o &&
1167                 git grep --no-index --exclude-standard o >../actual.full &&
1168                 test_cmp ../expect.full ../actual.full &&
1169
1170                 {
1171                         echo ".gitignore:.*o*" &&
1172                         cat ../expect.full
1173                 } >../expect.with.ignored &&
1174                 git grep --no-index --no-exclude-standard o >../actual.full &&
1175                 test_cmp ../expect.with.ignored ../actual.full
1176         )
1177 '
1178
1179 test_expect_success 'outside of git repository with fallbackToNoIndex' '
1180         rm -fr non &&
1181         mkdir -p non/git/sub &&
1182         echo hello >non/git/file1 &&
1183         echo world >non/git/sub/file2 &&
1184         cat <<-\EOF >non/expect.full &&
1185         file1:hello
1186         sub/file2:world
1187         EOF
1188         echo file2:world >non/expect.sub &&
1189         (
1190                 GIT_CEILING_DIRECTORIES="$(pwd)/non" &&
1191                 export GIT_CEILING_DIRECTORIES &&
1192                 cd non/git &&
1193                 test_must_fail git -c grep.fallbackToNoIndex=false grep o &&
1194                 git -c grep.fallbackToNoIndex=true grep o >../actual.full &&
1195                 test_cmp ../expect.full ../actual.full &&
1196                 cd sub &&
1197                 test_must_fail git -c grep.fallbackToNoIndex=false grep o &&
1198                 git -c grep.fallbackToNoIndex=true grep o >../../actual.sub &&
1199                 test_cmp ../../expect.sub ../../actual.sub
1200         ) &&
1201
1202         echo ".*o*" >non/git/.gitignore &&
1203         (
1204                 GIT_CEILING_DIRECTORIES="$(pwd)/non" &&
1205                 export GIT_CEILING_DIRECTORIES &&
1206                 cd non/git &&
1207                 test_must_fail git -c grep.fallbackToNoIndex=false grep o &&
1208                 git -c grep.fallbackToNoIndex=true grep --exclude-standard o >../actual.full &&
1209                 test_cmp ../expect.full ../actual.full &&
1210
1211                 {
1212                         echo ".gitignore:.*o*" &&
1213                         cat ../expect.full
1214                 } >../expect.with.ignored &&
1215                 git -c grep.fallbackToNoIndex grep --no-exclude-standard o >../actual.full &&
1216                 test_cmp ../expect.with.ignored ../actual.full
1217         )
1218 '
1219
1220 test_expect_success 'inside git repository but with --no-index' '
1221         rm -fr is &&
1222         mkdir -p is/git/sub &&
1223         echo hello >is/git/file1 &&
1224         echo world >is/git/sub/file2 &&
1225         echo ".*o*" >is/git/.gitignore &&
1226         {
1227                 echo file1:hello &&
1228                 echo sub/file2:world
1229         } >is/expect.unignored &&
1230         {
1231                 echo ".gitignore:.*o*" &&
1232                 cat is/expect.unignored
1233         } >is/expect.full &&
1234         echo file2:world >is/expect.sub &&
1235         (
1236                 cd is/git &&
1237                 git init &&
1238                 test_must_fail git grep o >../actual.full &&
1239                 test_must_be_empty ../actual.full &&
1240
1241                 git grep --untracked o >../actual.unignored &&
1242                 test_cmp ../expect.unignored ../actual.unignored &&
1243
1244                 git grep --no-index o >../actual.full &&
1245                 test_cmp ../expect.full ../actual.full &&
1246
1247                 git grep --no-index --exclude-standard o >../actual.unignored &&
1248                 test_cmp ../expect.unignored ../actual.unignored &&
1249
1250                 cd sub &&
1251                 test_must_fail git grep o >../../actual.sub &&
1252                 test_must_be_empty ../../actual.sub &&
1253
1254                 git grep --no-index o >../../actual.sub &&
1255                 test_cmp ../../expect.sub ../../actual.sub &&
1256
1257                 git grep --untracked o >../../actual.sub &&
1258                 test_cmp ../../expect.sub ../../actual.sub
1259         )
1260 '
1261
1262 test_expect_success 'grep --no-index descends into repos, but not .git' '
1263         rm -fr non &&
1264         mkdir -p non/git &&
1265         (
1266                 GIT_CEILING_DIRECTORIES="$(pwd)/non" &&
1267                 export GIT_CEILING_DIRECTORIES &&
1268                 cd non/git &&
1269
1270                 echo magic >file &&
1271                 git init repo &&
1272                 (
1273                         cd repo &&
1274                         echo magic >file &&
1275                         git add file &&
1276                         git commit -m foo &&
1277                         echo magic >.git/file
1278                 ) &&
1279
1280                 cat >expect <<-\EOF &&
1281                 file
1282                 repo/file
1283                 EOF
1284                 git grep -l --no-index magic >actual &&
1285                 test_cmp expect actual
1286         )
1287 '
1288
1289 test_expect_success 'setup double-dash tests' '
1290 cat >double-dash <<EOF &&
1291 --
1292 ->
1293 other
1294 EOF
1295 git add double-dash
1296 '
1297
1298 cat >expected <<EOF
1299 double-dash:->
1300 EOF
1301 test_expect_success 'grep -- pattern' '
1302         git grep -- "->" >actual &&
1303         test_cmp expected actual
1304 '
1305 test_expect_success 'grep -- pattern -- pathspec' '
1306         git grep -- "->" -- double-dash >actual &&
1307         test_cmp expected actual
1308 '
1309 test_expect_success 'grep -e pattern -- path' '
1310         git grep -e "->" -- double-dash >actual &&
1311         test_cmp expected actual
1312 '
1313
1314 cat >expected <<EOF
1315 double-dash:--
1316 EOF
1317 test_expect_success 'grep -e -- -- path' '
1318         git grep -e -- -- double-dash >actual &&
1319         test_cmp expected actual
1320 '
1321
1322 test_expect_success 'dashdash disambiguates rev as rev' '
1323         test_when_finished "rm -f main" &&
1324         echo content >main &&
1325         echo main:hello.c >expect &&
1326         git grep -l o main -- hello.c >actual &&
1327         test_cmp expect actual
1328 '
1329
1330 test_expect_success 'dashdash disambiguates pathspec as pathspec' '
1331         test_when_finished "git rm -f main" &&
1332         echo content >main &&
1333         git add main &&
1334         echo main:content >expect &&
1335         git grep o -- main >actual &&
1336         test_cmp expect actual
1337 '
1338
1339 test_expect_success 'report bogus arg without dashdash' '
1340         test_must_fail git grep o does-not-exist
1341 '
1342
1343 test_expect_success 'report bogus rev with dashdash' '
1344         test_must_fail git grep o hello.c --
1345 '
1346
1347 test_expect_success 'allow non-existent path with dashdash' '
1348         # We need a real match so grep exits with success.
1349         tree=$(git ls-tree HEAD |
1350                sed s/hello.c/not-in-working-tree/ |
1351                git mktree) &&
1352         git grep o "$tree" -- not-in-working-tree
1353 '
1354
1355 test_expect_success 'grep --no-index pattern -- path' '
1356         rm -fr non &&
1357         mkdir -p non/git &&
1358         (
1359                 GIT_CEILING_DIRECTORIES="$(pwd)/non" &&
1360                 export GIT_CEILING_DIRECTORIES &&
1361                 cd non/git &&
1362                 echo hello >hello &&
1363                 echo goodbye >goodbye &&
1364                 echo hello:hello >expect &&
1365                 git grep --no-index o -- hello >actual &&
1366                 test_cmp expect actual
1367         )
1368 '
1369
1370 test_expect_success 'grep --no-index complains of revs' '
1371         test_must_fail git grep --no-index o main -- 2>err &&
1372         test_i18ngrep "cannot be used with revs" err
1373 '
1374
1375 test_expect_success 'grep --no-index prefers paths to revs' '
1376         test_when_finished "rm -f main" &&
1377         echo content >main &&
1378         echo main:content >expect &&
1379         git grep --no-index o main >actual &&
1380         test_cmp expect actual
1381 '
1382
1383 test_expect_success 'grep --no-index does not "diagnose" revs' '
1384         test_must_fail git grep --no-index o :1:hello.c 2>err &&
1385         test_i18ngrep ! -i "did you mean" err
1386 '
1387
1388 cat >expected <<EOF
1389 hello.c:int main(int argc, const char **argv)
1390 hello.c:        printf("Hello world.\n");
1391 EOF
1392
1393 test_expect_success PCRE 'grep --perl-regexp pattern' '
1394         git grep --perl-regexp "\p{Ps}.*?\p{Pe}" hello.c >actual &&
1395         test_cmp expected actual
1396 '
1397
1398 test_expect_success !FAIL_PREREQS,!PCRE 'grep --perl-regexp pattern errors without PCRE' '
1399         test_must_fail git grep --perl-regexp "foo.*bar"
1400 '
1401
1402 test_expect_success PCRE 'grep -P pattern' '
1403         git grep -P "\p{Ps}.*?\p{Pe}" hello.c >actual &&
1404         test_cmp expected actual
1405 '
1406
1407 test_expect_success LIBPCRE2 "grep -P with (*NO_JIT) doesn't error out" '
1408         git grep -P "(*NO_JIT)\p{Ps}.*?\p{Pe}" hello.c >actual &&
1409         test_cmp expected actual
1410
1411 '
1412
1413 test_expect_success !FAIL_PREREQS,!PCRE 'grep -P pattern errors without PCRE' '
1414         test_must_fail git grep -P "foo.*bar"
1415 '
1416
1417 test_expect_success 'grep pattern with grep.extendedRegexp=true' '
1418         test_must_fail git -c grep.extendedregexp=true \
1419                 grep "\p{Ps}.*?\p{Pe}" hello.c >actual &&
1420         test_must_be_empty actual
1421 '
1422
1423 test_expect_success PCRE 'grep -P pattern with grep.extendedRegexp=true' '
1424         git -c grep.extendedregexp=true \
1425                 grep -P "\p{Ps}.*?\p{Pe}" hello.c >actual &&
1426         test_cmp expected actual
1427 '
1428
1429 test_expect_success PCRE 'grep -P -v pattern' '
1430         cat >expected <<-\EOF &&
1431         ab:a+b*c
1432         ab:a+bc
1433         EOF
1434         git grep -P -v "abc" ab >actual &&
1435         test_cmp expected actual
1436 '
1437
1438 test_expect_success PCRE 'grep -P -i pattern' '
1439         cat >expected <<-EOF &&
1440         hello.c:        printf("Hello world.\n");
1441         EOF
1442         git grep -P -i "PRINTF\([^\d]+\)" hello.c >actual &&
1443         test_cmp expected actual
1444 '
1445
1446 test_expect_success PCRE 'grep -P -w pattern' '
1447         cat >expected <<-\EOF &&
1448         hello_world:Hello world
1449         hello_world:HeLLo world
1450         EOF
1451         git grep -P -w "He((?i)ll)o" hello_world >actual &&
1452         test_cmp expected actual
1453 '
1454
1455 test_expect_success PCRE 'grep -P backreferences work (the PCRE NO_AUTO_CAPTURE flag is not set)' '
1456         git grep -P -h "(?P<one>.)(?P=one)" hello_world >actual &&
1457         test_cmp hello_world actual &&
1458         git grep -P -h "(.)\1" hello_world >actual &&
1459         test_cmp hello_world actual
1460 '
1461
1462 test_expect_success 'grep -G invalidpattern properly dies ' '
1463         test_must_fail git grep -G "a["
1464 '
1465
1466 test_expect_success 'grep invalidpattern properly dies with grep.patternType=basic' '
1467         test_must_fail git -c grep.patterntype=basic grep "a["
1468 '
1469
1470 test_expect_success 'grep -E invalidpattern properly dies ' '
1471         test_must_fail git grep -E "a["
1472 '
1473
1474 test_expect_success 'grep invalidpattern properly dies with grep.patternType=extended' '
1475         test_must_fail git -c grep.patterntype=extended grep "a["
1476 '
1477
1478 test_expect_success PCRE 'grep -P invalidpattern properly dies ' '
1479         test_must_fail git grep -P "a["
1480 '
1481
1482 test_expect_success PCRE 'grep invalidpattern properly dies with grep.patternType=perl' '
1483         test_must_fail git -c grep.patterntype=perl grep "a["
1484 '
1485
1486 test_expect_success 'grep -G -E -F pattern' '
1487         echo "ab:a+b*c" >expected &&
1488         git grep -G -E -F "a+b*c" ab >actual &&
1489         test_cmp expected actual
1490 '
1491
1492 test_expect_success 'grep pattern with grep.patternType=basic, =extended, =fixed' '
1493         echo "ab:a+b*c" >expected &&
1494         git \
1495                 -c grep.patterntype=basic \
1496                 -c grep.patterntype=extended \
1497                 -c grep.patterntype=fixed \
1498                 grep "a+b*c" ab >actual &&
1499         test_cmp expected actual
1500 '
1501
1502 test_expect_success 'grep -E -F -G pattern' '
1503         echo "ab:a+bc" >expected &&
1504         git grep -E -F -G "a+b*c" ab >actual &&
1505         test_cmp expected actual
1506 '
1507
1508 test_expect_success 'grep pattern with grep.patternType=extended, =fixed, =basic' '
1509         echo "ab:a+bc" >expected &&
1510         git \
1511                 -c grep.patterntype=extended \
1512                 -c grep.patterntype=fixed \
1513                 -c grep.patterntype=basic \
1514                 grep "a+b*c" ab >actual &&
1515         test_cmp expected actual
1516 '
1517
1518 test_expect_success 'grep -F -G -E pattern' '
1519         echo "ab:abc" >expected &&
1520         git grep -F -G -E "a+b*c" ab >actual &&
1521         test_cmp expected actual
1522 '
1523
1524 test_expect_success 'grep pattern with grep.patternType=fixed, =basic, =extended' '
1525         echo "ab:abc" >expected &&
1526         git \
1527                 -c grep.patterntype=fixed \
1528                 -c grep.patterntype=basic \
1529                 -c grep.patterntype=extended \
1530                 grep "a+b*c" ab >actual &&
1531         test_cmp expected actual
1532 '
1533
1534 test_expect_success 'grep -G -F -P -E pattern' '
1535         echo "d0:d" >expected &&
1536         git grep -G -F -P -E "[\d]" d0 >actual &&
1537         test_cmp expected actual
1538 '
1539
1540 test_expect_success 'grep pattern with grep.patternType=fixed, =basic, =perl, =extended' '
1541         echo "d0:d" >expected &&
1542         git \
1543                 -c grep.patterntype=fixed \
1544                 -c grep.patterntype=basic \
1545                 -c grep.patterntype=perl \
1546                 -c grep.patterntype=extended \
1547                 grep "[\d]" d0 >actual &&
1548         test_cmp expected actual
1549 '
1550
1551 test_expect_success PCRE 'grep -G -F -E -P pattern' '
1552         echo "d0:0" >expected &&
1553         git grep -G -F -E -P "[\d]" d0 >actual &&
1554         test_cmp expected actual
1555 '
1556
1557 test_expect_success PCRE 'grep pattern with grep.patternType=fixed, =basic, =extended, =perl' '
1558         echo "d0:0" >expected &&
1559         git \
1560                 -c grep.patterntype=fixed \
1561                 -c grep.patterntype=basic \
1562                 -c grep.patterntype=extended \
1563                 -c grep.patterntype=perl \
1564                 grep "[\d]" d0 >actual &&
1565         test_cmp expected actual
1566 '
1567
1568 test_expect_success PCRE 'grep -P pattern with grep.patternType=fixed' '
1569         echo "ab:a+b*c" >expected &&
1570         git \
1571                 -c grep.patterntype=fixed \
1572                 grep -P "a\x{2b}b\x{2a}c" ab >actual &&
1573         test_cmp expected actual
1574 '
1575
1576 test_expect_success 'grep -F pattern with grep.patternType=basic' '
1577         echo "ab:a+b*c" >expected &&
1578         git \
1579                 -c grep.patterntype=basic \
1580                 grep -F "*c" ab >actual &&
1581         test_cmp expected actual
1582 '
1583
1584 test_expect_success 'grep -G pattern with grep.patternType=fixed' '
1585         cat >expected <<-\EOF &&
1586         ab:a+b*c
1587         ab:a+bc
1588         EOF
1589         git \
1590                 -c grep.patterntype=fixed \
1591                 grep -G "a+b" ab >actual &&
1592         test_cmp expected actual
1593 '
1594
1595 test_expect_success 'grep -E pattern with grep.patternType=fixed' '
1596         cat >expected <<-\EOF &&
1597         ab:a+b*c
1598         ab:a+bc
1599         ab:abc
1600         EOF
1601         git \
1602                 -c grep.patterntype=fixed \
1603                 grep -E "a+" ab >actual &&
1604         test_cmp expected actual
1605 '
1606
1607 cat >expected <<EOF
1608 hello.c<RED>:<RESET>int main(int argc, const char **argv)
1609 hello.c<RED>-<RESET>{
1610 <RED>--<RESET>
1611 hello.c<RED>:<RESET>    /* char ?? */
1612 hello.c<RED>-<RESET>}
1613 <RED>--<RESET>
1614 hello_world<RED>:<RESET>Hello_world
1615 hello_world<RED>-<RESET>HeLLo_world
1616 EOF
1617
1618 test_expect_success 'grep --color, separator' '
1619         test_config color.grep.context          normal &&
1620         test_config color.grep.filename         normal &&
1621         test_config color.grep.function         normal &&
1622         test_config color.grep.linenumber       normal &&
1623         test_config color.grep.match            normal &&
1624         test_config color.grep.selected         normal &&
1625         test_config color.grep.separator        red &&
1626
1627         git grep --color=always -A1 -e char -e lo_w hello.c hello_world |
1628         test_decode_color >actual &&
1629         test_cmp expected actual
1630 '
1631
1632 cat >expected <<EOF
1633 hello.c:int main(int argc, const char **argv)
1634 hello.c:        /* char ?? */
1635
1636 hello_world:Hello_world
1637 EOF
1638
1639 test_expect_success 'grep --break' '
1640         git grep --break -e char -e lo_w hello.c hello_world >actual &&
1641         test_cmp expected actual
1642 '
1643
1644 cat >expected <<EOF
1645 hello.c:int main(int argc, const char **argv)
1646 hello.c-{
1647 --
1648 hello.c:        /* char ?? */
1649 hello.c-}
1650
1651 hello_world:Hello_world
1652 hello_world-HeLLo_world
1653 EOF
1654
1655 test_expect_success 'grep --break with context' '
1656         git grep --break -A1 -e char -e lo_w hello.c hello_world >actual &&
1657         test_cmp expected actual
1658 '
1659
1660 cat >expected <<EOF
1661 hello.c
1662 int main(int argc, const char **argv)
1663         /* char ?? */
1664 hello_world
1665 Hello_world
1666 EOF
1667
1668 test_expect_success 'grep --heading' '
1669         git grep --heading -e char -e lo_w hello.c hello_world >actual &&
1670         test_cmp expected actual
1671 '
1672
1673 cat >expected <<EOF
1674 <BOLD;GREEN>hello.c<RESET>
1675 4:int main(int argc, const <BLACK;BYELLOW>char<RESET> **argv)
1676 8:      /* <BLACK;BYELLOW>char<RESET> ?? */
1677
1678 <BOLD;GREEN>hello_world<RESET>
1679 3:Hel<BLACK;BYELLOW>lo_w<RESET>orld
1680 EOF
1681
1682 test_expect_success 'mimic ack-grep --group' '
1683         test_config color.grep.context          normal &&
1684         test_config color.grep.filename         "bold green" &&
1685         test_config color.grep.function         normal &&
1686         test_config color.grep.linenumber       normal &&
1687         test_config color.grep.match            "black yellow" &&
1688         test_config color.grep.selected         normal &&
1689         test_config color.grep.separator        normal &&
1690
1691         git grep --break --heading -n --color \
1692                 -e char -e lo_w hello.c hello_world |
1693         test_decode_color >actual &&
1694         test_cmp expected actual
1695 '
1696
1697 cat >expected <<EOF
1698 space: line with leading space1
1699 space: line with leading space2
1700 space: line with leading space3
1701 EOF
1702
1703 test_expect_success PCRE 'grep -E "^ "' '
1704         git grep -E "^ " space >actual &&
1705         test_cmp expected actual
1706 '
1707
1708 test_expect_success PCRE 'grep -P "^ "' '
1709         git grep -P "^ " space >actual &&
1710         test_cmp expected actual
1711 '
1712
1713 cat >expected <<EOF
1714 space-line without leading space1
1715 space: line <RED>with <RESET>leading space1
1716 space: line <RED>with <RESET>leading <RED>space2<RESET>
1717 space: line <RED>with <RESET>leading space3
1718 space:line without leading <RED>space2<RESET>
1719 EOF
1720
1721 test_expect_success 'grep --color -e A -e B with context' '
1722         test_config color.grep.context          normal &&
1723         test_config color.grep.filename         normal &&
1724         test_config color.grep.function         normal &&
1725         test_config color.grep.linenumber       normal &&
1726         test_config color.grep.matchContext     normal &&
1727         test_config color.grep.matchSelected    red &&
1728         test_config color.grep.selected         normal &&
1729         test_config color.grep.separator        normal &&
1730
1731         git grep --color=always -C2 -e "with " -e space2  space |
1732         test_decode_color >actual &&
1733         test_cmp expected actual
1734 '
1735
1736 cat >expected <<EOF
1737 space-line without leading space1
1738 space- line with leading space1
1739 space: line <RED>with <RESET>leading <RED>space2<RESET>
1740 space- line with leading space3
1741 space-line without leading space2
1742 EOF
1743
1744 test_expect_success 'grep --color -e A --and -e B with context' '
1745         test_config color.grep.context          normal &&
1746         test_config color.grep.filename         normal &&
1747         test_config color.grep.function         normal &&
1748         test_config color.grep.linenumber       normal &&
1749         test_config color.grep.matchContext     normal &&
1750         test_config color.grep.matchSelected    red &&
1751         test_config color.grep.selected         normal &&
1752         test_config color.grep.separator        normal &&
1753
1754         git grep --color=always -C2 -e "with " --and -e space2  space |
1755         test_decode_color >actual &&
1756         test_cmp expected actual
1757 '
1758
1759 cat >expected <<EOF
1760 space-line without leading space1
1761 space: line <RED>with <RESET>leading space1
1762 space- line with leading space2
1763 space: line <RED>with <RESET>leading space3
1764 space-line without leading space2
1765 EOF
1766
1767 test_expect_success 'grep --color -e A --and --not -e B with context' '
1768         test_config color.grep.context          normal &&
1769         test_config color.grep.filename         normal &&
1770         test_config color.grep.function         normal &&
1771         test_config color.grep.linenumber       normal &&
1772         test_config color.grep.matchContext     normal &&
1773         test_config color.grep.matchSelected    red &&
1774         test_config color.grep.selected         normal &&
1775         test_config color.grep.separator        normal &&
1776
1777         git grep --color=always -C2 -e "with " --and --not -e space2  space |
1778         test_decode_color >actual &&
1779         test_cmp expected actual
1780 '
1781
1782 cat >expected <<EOF
1783 hello.c-
1784 hello.c=int main(int argc, const char **argv)
1785 hello.c-{
1786 hello.c:        pr<RED>int<RESET>f("<RED>Hello<RESET> world.\n");
1787 hello.c-        return 0;
1788 hello.c-        /* char ?? */
1789 hello.c-}
1790 EOF
1791
1792 test_expect_success 'grep --color -e A --and -e B -p with context' '
1793         test_config color.grep.context          normal &&
1794         test_config color.grep.filename         normal &&
1795         test_config color.grep.function         normal &&
1796         test_config color.grep.linenumber       normal &&
1797         test_config color.grep.matchContext     normal &&
1798         test_config color.grep.matchSelected    red &&
1799         test_config color.grep.selected         normal &&
1800         test_config color.grep.separator        normal &&
1801
1802         git grep --color=always -p -C3 -e int --and -e Hello --no-index hello.c |
1803         test_decode_color >actual &&
1804         test_cmp expected actual
1805 '
1806
1807 test_expect_success 'grep can find things only in the work tree' '
1808         : >work-tree-only &&
1809         git add work-tree-only &&
1810         test_when_finished "git rm -f work-tree-only" &&
1811         echo "find in work tree" >work-tree-only &&
1812         git grep --quiet "find in work tree" &&
1813         test_must_fail git grep --quiet --cached "find in work tree" &&
1814         test_must_fail git grep --quiet "find in work tree" HEAD
1815 '
1816
1817 test_expect_success 'grep can find things only in the work tree (i-t-a)' '
1818         echo "intend to add this" >intend-to-add &&
1819         git add -N intend-to-add &&
1820         test_when_finished "git rm -f intend-to-add" &&
1821         git grep --quiet "intend to add this" &&
1822         test_must_fail git grep --quiet --cached "intend to add this" &&
1823         test_must_fail git grep --quiet "intend to add this" HEAD
1824 '
1825
1826 test_expect_success 'grep does not search work tree with assume unchanged' '
1827         echo "intend to add this" >intend-to-add &&
1828         git add -N intend-to-add &&
1829         git update-index --assume-unchanged intend-to-add &&
1830         test_when_finished "git rm -f intend-to-add" &&
1831         test_must_fail git grep --quiet "intend to add this" &&
1832         test_must_fail git grep --quiet --cached "intend to add this" &&
1833         test_must_fail git grep --quiet "intend to add this" HEAD
1834 '
1835
1836 test_expect_success 'grep can find things only in the index' '
1837         echo "only in the index" >cache-this &&
1838         git add cache-this &&
1839         rm cache-this &&
1840         test_when_finished "git rm --cached cache-this" &&
1841         test_must_fail git grep --quiet "only in the index" &&
1842         git grep --quiet --cached "only in the index" &&
1843         test_must_fail git grep --quiet "only in the index" HEAD
1844 '
1845
1846 test_expect_success 'grep does not report i-t-a with -L --cached' '
1847         echo "intend to add this" >intend-to-add &&
1848         git add -N intend-to-add &&
1849         test_when_finished "git rm -f intend-to-add" &&
1850         git ls-files | grep -v "^intend-to-add\$" >expected &&
1851         git grep -L --cached "nonexistent_string" >actual &&
1852         test_cmp expected actual
1853 '
1854
1855 test_expect_success 'grep does not report i-t-a and assume unchanged with -L' '
1856         echo "intend to add this" >intend-to-add-assume-unchanged &&
1857         git add -N intend-to-add-assume-unchanged &&
1858         test_when_finished "git rm -f intend-to-add-assume-unchanged" &&
1859         git update-index --assume-unchanged intend-to-add-assume-unchanged &&
1860         git ls-files | grep -v "^intend-to-add-assume-unchanged\$" >expected &&
1861         git grep -L "nonexistent_string" >actual &&
1862         test_cmp expected actual
1863 '
1864
1865 test_done