t/t0021-conversion.sh

   1 #!/bin/sh
   2
   3 test_description='blob conversion via gitattributes'
   4
   5 . ./test-lib.sh
   6
   7 TEST_ROOT="$PWD"
   8 PATH=$TEST_ROOT:$PATH
   9
  10 write_script <<\EOF "$TEST_ROOT/rot13.sh"
  11 tr \
  12   'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' \
  13   'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
  14 EOF
  15
  16 write_script rot13-filter.pl "$PERL_PATH" \
  17         <"$TEST_DIRECTORY"/t0021/rot13-filter.pl
  18
  19 generate_random_characters () {
  20         LEN=$1
  21         NAME=$2
  22         test-genrandom some-seed $LEN |
  23                 perl -pe "s/./chr((ord($&) % 26) + ord('a'))/sge" >"$TEST_ROOT/$NAME"
  24 }
  25
  26 file_size () {
  27         perl -e 'print -s $ARGV[0]' "$1"
  28 }
  29
  30 filter_git () {
  31         rm -f rot13-filter.log &&
  32         git "$@"
  33 }
  34
  35 # Compare two files and ensure that `clean` and `smudge` respectively are
  36 # called at least once if specified in the `expect` file. The actual
  37 # invocation count is not relevant because their number can vary.
  38 # c.f. http://public-inbox.org/git/xmqqshv18i8i.fsf@gitster.mtv.corp.google.com/
  39 test_cmp_count () {
  40         expect=$1
  41         actual=$2
  42         for FILE in "$expect" "$actual"
  43         do
  44                 sort "$FILE" | uniq -c |
  45                 sed -e "s/^ *[0-9][0-9]*[       ]*IN: /x IN: /" >"$FILE.tmp" &&
  46                 mv "$FILE.tmp" "$FILE" || return
  47         done &&
  48         test_cmp "$expect" "$actual"
  49 }
  50
  51 # Compare two files but exclude all `clean` invocations because Git can
  52 # call `clean` zero or more times.
  53 # c.f. http://public-inbox.org/git/xmqqshv18i8i.fsf@gitster.mtv.corp.google.com/
  54 test_cmp_exclude_clean () {
  55         expect=$1
  56         actual=$2
  57         for FILE in "$expect" "$actual"
  58         do
  59                 grep -v "IN: clean" "$FILE" >"$FILE.tmp" &&
  60                 mv "$FILE.tmp" "$FILE"
  61         done &&
  62         test_cmp "$expect" "$actual"
  63 }
  64
  65 # Check that the contents of two files are equal and that their rot13 version
  66 # is equal to the committed content.
  67 test_cmp_committed_rot13 () {
  68         test_cmp "$1" "$2" &&
  69         rot13.sh <"$1" >expected &&
  70         git cat-file blob :"$2" >actual &&
  71         test_cmp expected actual
  72 }
  73
  74 test_expect_success setup '
  75         git config filter.rot13.smudge ./rot13.sh &&
  76         git config filter.rot13.clean ./rot13.sh &&
  77
  78         {
  79             echo "*.t filter=rot13"
  80             echo "*.i ident"
  81         } >.gitattributes &&
  82
  83         {
  84             echo a b c d e f g h i j k l m
  85             echo n o p q r s t u v w x y z
  86             echo '\''$Id$'\''
  87         } >test &&
  88         cat test >test.t &&
  89         cat test >test.o &&
  90         cat test >test.i &&
  91         git add test test.t test.i &&
  92         rm -f test test.t test.i &&
  93         git checkout -- test test.t test.i &&
  94
  95         echo "content-test2" >test2.o &&
  96         echo "content-test3 - filename with special characters" >"test3 '\''sq'\'',\$x.o"
  97 '
  98
  99 script='s/^\$Id: \([0-9a-f]*\) \$/\1/p'
 100
 101 test_expect_success check '
 102
 103         test_cmp test.o test &&
 104         test_cmp test.o test.t &&
 105
 106         # ident should be stripped in the repository
 107         git diff --raw --exit-code :test :test.i &&
 108         id=$(git rev-parse --verify :test) &&
 109         embedded=$(sed -ne "$script" test.i) &&
 110         test "z$id" = "z$embedded" &&
 111
 112         git cat-file blob :test.t >test.r &&
 113
 114         ./rot13.sh <test.o >test.t &&
 115         test_cmp test.r test.t
 116 '
 117
 118 # If an expanded ident ever gets into the repository, we want to make sure that
 119 # it is collapsed before being expanded again on checkout
 120 test_expect_success expanded_in_repo '
 121         {
 122                 echo "File with expanded keywords"
 123                 echo "\$Id\$"
 124                 echo "\$Id:\$"
 125                 echo "\$Id: 0000000000000000000000000000000000000000 \$"
 126                 echo "\$Id: NoSpaceAtEnd\$"
 127                 echo "\$Id:NoSpaceAtFront \$"
 128                 echo "\$Id:NoSpaceAtEitherEnd\$"
 129                 echo "\$Id: NoTerminatingSymbol"
 130                 echo "\$Id: Foreign Commit With Spaces \$"
 131         } >expanded-keywords.0 &&
 132
 133         {
 134                 cat expanded-keywords.0 &&
 135                 printf "\$Id: NoTerminatingSymbolAtEOF"
 136         } >expanded-keywords &&
 137         cat expanded-keywords >expanded-keywords-crlf &&
 138         git add expanded-keywords expanded-keywords-crlf &&
 139         git commit -m "File with keywords expanded" &&
 140         id=$(git rev-parse --verify :expanded-keywords) &&
 141
 142         {
 143                 echo "File with expanded keywords"
 144                 echo "\$Id: $id \$"
 145                 echo "\$Id: $id \$"
 146                 echo "\$Id: $id \$"
 147                 echo "\$Id: $id \$"
 148                 echo "\$Id: $id \$"
 149                 echo "\$Id: $id \$"
 150                 echo "\$Id: NoTerminatingSymbol"
 151                 echo "\$Id: Foreign Commit With Spaces \$"
 152         } >expected-output.0 &&
 153         {
 154                 cat expected-output.0 &&
 155                 printf "\$Id: NoTerminatingSymbolAtEOF"
 156         } >expected-output &&
 157         {
 158                 append_cr <expected-output.0 &&
 159                 printf "\$Id: NoTerminatingSymbolAtEOF"
 160         } >expected-output-crlf &&
 161         {
 162                 echo "expanded-keywords ident"
 163                 echo "expanded-keywords-crlf ident text eol=crlf"
 164         } >>.gitattributes &&
 165
 166         rm -f expanded-keywords expanded-keywords-crlf &&
 167
 168         git checkout -- expanded-keywords &&
 169         test_cmp expanded-keywords expected-output &&
 170
 171         git checkout -- expanded-keywords-crlf &&
 172         test_cmp expanded-keywords-crlf expected-output-crlf
 173 '
 174
 175 # The use of %f in a filter definition is expanded to the path to
 176 # the filename being smudged or cleaned.  It must be shell escaped.
 177 # First, set up some interesting file names and pet them in
 178 # .gitattributes.
 179 test_expect_success 'filter shell-escaped filenames' '
 180         cat >argc.sh <<-EOF &&
 181         #!$SHELL_PATH
 182         cat >/dev/null
 183         echo argc: \$# "\$@"
 184         EOF
 185         normal=name-no-magic &&
 186         special="name  with '\''sq'\'' and \$x" &&
 187         echo some test text >"$normal" &&
 188         echo some test text >"$special" &&
 189         git add "$normal" "$special" &&
 190         git commit -q -m "add files" &&
 191         echo "name* filter=argc" >.gitattributes &&
 192
 193         # delete the files and check them out again, using a smudge filter
 194         # that will count the args and echo the command-line back to us
 195         test_config filter.argc.smudge "sh ./argc.sh %f" &&
 196         rm "$normal" "$special" &&
 197         git checkout -- "$normal" "$special" &&
 198
 199         # make sure argc.sh counted the right number of args
 200         echo "argc: 1 $normal" >expect &&
 201         test_cmp expect "$normal" &&
 202         echo "argc: 1 $special" >expect &&
 203         test_cmp expect "$special" &&
 204
 205         # do the same thing, but with more args in the filter expression
 206         test_config filter.argc.smudge "sh ./argc.sh %f --my-extra-arg" &&
 207         rm "$normal" "$special" &&
 208         git checkout -- "$normal" "$special" &&
 209
 210         # make sure argc.sh counted the right number of args
 211         echo "argc: 2 $normal --my-extra-arg" >expect &&
 212         test_cmp expect "$normal" &&
 213         echo "argc: 2 $special --my-extra-arg" >expect &&
 214         test_cmp expect "$special" &&
 215         :
 216 '
 217
 218 test_expect_success 'required filter should filter data' '
 219         test_config filter.required.smudge ./rot13.sh &&
 220         test_config filter.required.clean ./rot13.sh &&
 221         test_config filter.required.required true &&
 222
 223         echo "*.r filter=required" >.gitattributes &&
 224
 225         cat test.o >test.r &&
 226         git add test.r &&
 227
 228         rm -f test.r &&
 229         git checkout -- test.r &&
 230         test_cmp test.o test.r &&
 231
 232         ./rot13.sh <test.o >expected &&
 233         git cat-file blob :test.r >actual &&
 234         test_cmp expected actual
 235 '
 236
 237 test_expect_success 'required filter smudge failure' '
 238         test_config filter.failsmudge.smudge false &&
 239         test_config filter.failsmudge.clean cat &&
 240         test_config filter.failsmudge.required true &&
 241
 242         echo "*.fs filter=failsmudge" >.gitattributes &&
 243
 244         echo test >test.fs &&
 245         git add test.fs &&
 246         rm -f test.fs &&
 247         test_must_fail git checkout -- test.fs
 248 '
 249
 250 test_expect_success 'required filter clean failure' '
 251         test_config filter.failclean.smudge cat &&
 252         test_config filter.failclean.clean false &&
 253         test_config filter.failclean.required true &&
 254
 255         echo "*.fc filter=failclean" >.gitattributes &&
 256
 257         echo test >test.fc &&
 258         test_must_fail git add test.fc
 259 '
 260
 261 test_expect_success 'filtering large input to small output should use little memory' '
 262         test_config filter.devnull.clean "cat >/dev/null" &&
 263         test_config filter.devnull.required true &&
 264         for i in $(test_seq 1 30); do printf "%1048576d" 1; done >30MB &&
 265         echo "30MB filter=devnull" >.gitattributes &&
 266         GIT_MMAP_LIMIT=1m GIT_ALLOC_LIMIT=1m git add 30MB
 267 '
 268
 269 test_expect_success 'filter that does not read is fine' '
 270         test-genrandom foo $((128 * 1024 + 1)) >big &&
 271         echo "big filter=epipe" >.gitattributes &&
 272         test_config filter.epipe.clean "echo xyzzy" &&
 273         git add big &&
 274         git cat-file blob :big >actual &&
 275         echo xyzzy >expect &&
 276         test_cmp expect actual
 277 '
 278
 279 test_expect_success EXPENSIVE 'filter large file' '
 280         test_config filter.largefile.smudge cat &&
 281         test_config filter.largefile.clean cat &&
 282         for i in $(test_seq 1 2048); do printf "%1048576d" 1; done >2GB &&
 283         echo "2GB filter=largefile" >.gitattributes &&
 284         git add 2GB 2>err &&
 285         test_must_be_empty err &&
 286         rm -f 2GB &&
 287         git checkout -- 2GB 2>err &&
 288         test_must_be_empty err
 289 '
 290
 291 test_expect_success "filter: clean empty file" '
 292         test_config filter.in-repo-header.clean  "echo cleaned && cat" &&
 293         test_config filter.in-repo-header.smudge "sed 1d" &&
 294
 295         echo "empty-in-worktree    filter=in-repo-header" >>.gitattributes &&
 296         >empty-in-worktree &&
 297
 298         echo cleaned >expected &&
 299         git add empty-in-worktree &&
 300         git show :empty-in-worktree >actual &&
 301         test_cmp expected actual
 302 '
 303
 304 test_expect_success "filter: smudge empty file" '
 305         test_config filter.empty-in-repo.clean "cat >/dev/null" &&
 306         test_config filter.empty-in-repo.smudge "echo smudged && cat" &&
 307
 308         echo "empty-in-repo filter=empty-in-repo" >>.gitattributes &&
 309         echo dead data walking >empty-in-repo &&
 310         git add empty-in-repo &&
 311
 312         echo smudged >expected &&
 313         git checkout-index --prefix=filtered- empty-in-repo &&
 314         test_cmp expected filtered-empty-in-repo
 315 '
 316
 317 test_expect_success 'disable filter with empty override' '
 318         test_config_global filter.disable.smudge false &&
 319         test_config_global filter.disable.clean false &&
 320         test_config filter.disable.smudge false &&
 321         test_config filter.disable.clean false &&
 322
 323         echo "*.disable filter=disable" >.gitattributes &&
 324
 325         echo test >test.disable &&
 326         git -c filter.disable.clean= add test.disable 2>err &&
 327         test_must_be_empty err &&
 328         rm -f test.disable &&
 329         git -c filter.disable.smudge= checkout -- test.disable 2>err &&
 330         test_must_be_empty err
 331 '
 332
 333 test_expect_success 'diff does not reuse worktree files that need cleaning' '
 334         test_config filter.counter.clean "echo . >>count; sed s/^/clean:/" &&
 335         echo "file filter=counter" >.gitattributes &&
 336         test_commit one file &&
 337         test_commit two file &&
 338
 339         >count &&
 340         git diff-tree -p HEAD &&
 341         test_line_count = 0 count
 342 '
 343
 344 test_expect_success PERL 'required process filter should filter data' '
 345         test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
 346         test_config_global filter.protocol.required true &&
 347         rm -rf repo &&
 348         mkdir repo &&
 349         (
 350                 cd repo &&
 351                 git init &&
 352
 353                 echo "*.r filter=protocol" >.gitattributes &&
 354                 git add . &&
 355                 git commit -m "test commit 1" &&
 356                 git branch empty-branch &&
 357
 358                 cp "$TEST_ROOT/test.o" test.r &&
 359                 cp "$TEST_ROOT/test2.o" test2.r &&
 360                 mkdir testsubdir &&
 361                 cp "$TEST_ROOT/test3 '\''sq'\'',\$x.o" "testsubdir/test3 '\''sq'\'',\$x.r" &&
 362                 >test4-empty.r &&
 363
 364                 S=$(file_size test.r) &&
 365                 S2=$(file_size test2.r) &&
 366                 S3=$(file_size "testsubdir/test3 '\''sq'\'',\$x.r") &&
 367
 368                 filter_git add . &&
 369                 cat >expected.log <<-EOF &&
 370                         START
 371                         init handshake complete
 372                         IN: clean test.r $S [OK] -- OUT: $S . [OK]
 373                         IN: clean test2.r $S2 [OK] -- OUT: $S2 . [OK]
 374                         IN: clean test4-empty.r 0 [OK] -- OUT: 0  [OK]
 375                         IN: clean testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
 376                         STOP
 377                 EOF
 378                 test_cmp_count expected.log rot13-filter.log &&
 379
 380                 filter_git commit -m "test commit 2" &&
 381                 cat >expected.log <<-EOF &&
 382                         START
 383                         init handshake complete
 384                         IN: clean test.r $S [OK] -- OUT: $S . [OK]
 385                         IN: clean test2.r $S2 [OK] -- OUT: $S2 . [OK]
 386                         IN: clean test4-empty.r 0 [OK] -- OUT: 0  [OK]
 387                         IN: clean testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
 388                         IN: clean test.r $S [OK] -- OUT: $S . [OK]
 389                         IN: clean test2.r $S2 [OK] -- OUT: $S2 . [OK]
 390                         IN: clean test4-empty.r 0 [OK] -- OUT: 0  [OK]
 391                         IN: clean testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
 392                         STOP
 393                 EOF
 394                 test_cmp_count expected.log rot13-filter.log &&
 395
 396                 rm -f test2.r "testsubdir/test3 '\''sq'\'',\$x.r" &&
 397
 398                 filter_git checkout --quiet --no-progress . &&
 399                 cat >expected.log <<-EOF &&
 400                         START
 401                         init handshake complete
 402                         IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
 403                         IN: smudge testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
 404                         STOP
 405                 EOF
 406                 test_cmp_exclude_clean expected.log rot13-filter.log &&
 407
 408                 filter_git checkout --quiet --no-progress empty-branch &&
 409                 cat >expected.log <<-EOF &&
 410                         START
 411                         init handshake complete
 412                         IN: clean test.r $S [OK] -- OUT: $S . [OK]
 413                         STOP
 414                 EOF
 415                 test_cmp_exclude_clean expected.log rot13-filter.log &&
 416
 417                 filter_git checkout --quiet --no-progress master &&
 418                 cat >expected.log <<-EOF &&
 419                         START
 420                         init handshake complete
 421                         IN: smudge test.r $S [OK] -- OUT: $S . [OK]
 422                         IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
 423                         IN: smudge test4-empty.r 0 [OK] -- OUT: 0  [OK]
 424                         IN: smudge testsubdir/test3 '\''sq'\'',\$x.r $S3 [OK] -- OUT: $S3 . [OK]
 425                         STOP
 426                 EOF
 427                 test_cmp_exclude_clean expected.log rot13-filter.log &&
 428
 429                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test.r &&
 430                 test_cmp_committed_rot13 "$TEST_ROOT/test2.o" test2.r &&
 431                 test_cmp_committed_rot13 "$TEST_ROOT/test3 '\''sq'\'',\$x.o" "testsubdir/test3 '\''sq'\'',\$x.r"
 432         )
 433 '
 434
 435 test_expect_success PERL 'required process filter takes precedence' '
 436         test_config_global filter.protocol.clean false &&
 437         test_config_global filter.protocol.process "rot13-filter.pl clean" &&
 438         test_config_global filter.protocol.required true &&
 439         rm -rf repo &&
 440         mkdir repo &&
 441         (
 442                 cd repo &&
 443                 git init &&
 444
 445                 echo "*.r filter=protocol" >.gitattributes &&
 446                 cp "$TEST_ROOT/test.o" test.r &&
 447                 S=$(file_size test.r) &&
 448
 449                 # Check that the process filter is invoked here
 450                 filter_git add . &&
 451                 cat >expected.log <<-EOF &&
 452                         START
 453                         init handshake complete
 454                         IN: clean test.r $S [OK] -- OUT: $S . [OK]
 455                         STOP
 456                 EOF
 457                 test_cmp_count expected.log rot13-filter.log
 458         )
 459 '
 460
 461 test_expect_success PERL 'required process filter should be used only for "clean" operation only' '
 462         test_config_global filter.protocol.process "rot13-filter.pl clean" &&
 463         rm -rf repo &&
 464         mkdir repo &&
 465         (
 466                 cd repo &&
 467                 git init &&
 468
 469                 echo "*.r filter=protocol" >.gitattributes &&
 470                 cp "$TEST_ROOT/test.o" test.r &&
 471                 S=$(file_size test.r) &&
 472
 473                 filter_git add . &&
 474                 cat >expected.log <<-EOF &&
 475                         START
 476                         init handshake complete
 477                         IN: clean test.r $S [OK] -- OUT: $S . [OK]
 478                         STOP
 479                 EOF
 480                 test_cmp_count expected.log rot13-filter.log &&
 481
 482                 rm test.r &&
 483
 484                 filter_git checkout --quiet --no-progress . &&
 485                 # If the filter would be used for "smudge", too, we would see
 486                 # "IN: smudge test.r 57 [OK] -- OUT: 57 . [OK]" here
 487                 cat >expected.log <<-EOF &&
 488                         START
 489                         init handshake complete
 490                         STOP
 491                 EOF
 492                 test_cmp_exclude_clean expected.log rot13-filter.log
 493         )
 494 '
 495
 496 test_expect_success PERL 'required process filter should process multiple packets' '
 497         test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
 498         test_config_global filter.protocol.required true &&
 499
 500         rm -rf repo &&
 501         mkdir repo &&
 502         (
 503                 cd repo &&
 504                 git init &&
 505
 506                 # Generate data requiring 1, 2, 3 packets
 507                 S=65516 && # PKTLINE_DATA_MAXLEN -> Maximal size of a packet
 508                 generate_random_characters $(($S    )) 1pkt_1__.file &&
 509                 generate_random_characters $(($S  +1)) 2pkt_1+1.file &&
 510                 generate_random_characters $(($S*2-1)) 2pkt_2-1.file &&
 511                 generate_random_characters $(($S*2  )) 2pkt_2__.file &&
 512                 generate_random_characters $(($S*2+1)) 3pkt_2+1.file &&
 513
 514                 for FILE in "$TEST_ROOT"/*.file
 515                 do
 516                         cp "$FILE" . &&
 517                         rot13.sh <"$FILE" >"$FILE.rot13"
 518                 done &&
 519
 520                 echo "*.file filter=protocol" >.gitattributes &&
 521                 filter_git add *.file .gitattributes &&
 522                 cat >expected.log <<-EOF &&
 523                         START
 524                         init handshake complete
 525                         IN: clean 1pkt_1__.file $(($S    )) [OK] -- OUT: $(($S    )) . [OK]
 526                         IN: clean 2pkt_1+1.file $(($S  +1)) [OK] -- OUT: $(($S  +1)) .. [OK]
 527                         IN: clean 2pkt_2-1.file $(($S*2-1)) [OK] -- OUT: $(($S*2-1)) .. [OK]
 528                         IN: clean 2pkt_2__.file $(($S*2  )) [OK] -- OUT: $(($S*2  )) .. [OK]
 529                         IN: clean 3pkt_2+1.file $(($S*2+1)) [OK] -- OUT: $(($S*2+1)) ... [OK]
 530                         STOP
 531                 EOF
 532                 test_cmp_count expected.log rot13-filter.log &&
 533
 534                 rm -f *.file &&
 535
 536                 filter_git checkout --quiet --no-progress -- *.file &&
 537                 cat >expected.log <<-EOF &&
 538                         START
 539                         init handshake complete
 540                         IN: smudge 1pkt_1__.file $(($S    )) [OK] -- OUT: $(($S    )) . [OK]
 541                         IN: smudge 2pkt_1+1.file $(($S  +1)) [OK] -- OUT: $(($S  +1)) .. [OK]
 542                         IN: smudge 2pkt_2-1.file $(($S*2-1)) [OK] -- OUT: $(($S*2-1)) .. [OK]
 543                         IN: smudge 2pkt_2__.file $(($S*2  )) [OK] -- OUT: $(($S*2  )) .. [OK]
 544                         IN: smudge 3pkt_2+1.file $(($S*2+1)) [OK] -- OUT: $(($S*2+1)) ... [OK]
 545                         STOP
 546                 EOF
 547                 test_cmp_exclude_clean expected.log rot13-filter.log &&
 548
 549                 for FILE in *.file
 550                 do
 551                         test_cmp_committed_rot13 "$TEST_ROOT/$FILE" $FILE
 552                 done
 553         )
 554 '
 555
 556 test_expect_success PERL 'required process filter with clean error should fail' '
 557         test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
 558         test_config_global filter.protocol.required true &&
 559         rm -rf repo &&
 560         mkdir repo &&
 561         (
 562                 cd repo &&
 563                 git init &&
 564
 565                 echo "*.r filter=protocol" >.gitattributes &&
 566
 567                 cp "$TEST_ROOT/test.o" test.r &&
 568                 echo "this is going to fail" >clean-write-fail.r &&
 569                 echo "content-test3-subdir" >test3.r &&
 570
 571                 test_must_fail git add .
 572         )
 573 '
 574
 575 test_expect_success PERL 'process filter should restart after unexpected write failure' '
 576         test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
 577         rm -rf repo &&
 578         mkdir repo &&
 579         (
 580                 cd repo &&
 581                 git init &&
 582
 583                 echo "*.r filter=protocol" >.gitattributes &&
 584
 585                 cp "$TEST_ROOT/test.o" test.r &&
 586                 cp "$TEST_ROOT/test2.o" test2.r &&
 587                 echo "this is going to fail" >smudge-write-fail.o &&
 588                 cp smudge-write-fail.o smudge-write-fail.r &&
 589
 590                 S=$(file_size test.r) &&
 591                 S2=$(file_size test2.r) &&
 592                 SF=$(file_size smudge-write-fail.r) &&
 593
 594                 git add . &&
 595                 rm -f *.r &&
 596
 597                 rm -f rot13-filter.log &&
 598                 git checkout --quiet --no-progress . 2>git-stderr.log &&
 599
 600                 grep "smudge write error at" git-stderr.log &&
 601                 grep "error: external filter" git-stderr.log &&
 602
 603                 cat >expected.log <<-EOF &&
 604                         START
 605                         init handshake complete
 606                         IN: smudge smudge-write-fail.r $SF [OK] -- OUT: $SF [WRITE FAIL]
 607                         START
 608                         init handshake complete
 609                         IN: smudge test.r $S [OK] -- OUT: $S . [OK]
 610                         IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
 611                         STOP
 612                 EOF
 613                 test_cmp_exclude_clean expected.log rot13-filter.log &&
 614
 615                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test.r &&
 616                 test_cmp_committed_rot13 "$TEST_ROOT/test2.o" test2.r &&
 617
 618                 # Smudge failed
 619                 ! test_cmp smudge-write-fail.o smudge-write-fail.r &&
 620                 rot13.sh <smudge-write-fail.o >expected &&
 621                 git cat-file blob :smudge-write-fail.r >actual &&
 622                 test_cmp expected actual
 623         )
 624 '
 625
 626 test_expect_success PERL 'process filter should not be restarted if it signals an error' '
 627         test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
 628         rm -rf repo &&
 629         mkdir repo &&
 630         (
 631                 cd repo &&
 632                 git init &&
 633
 634                 echo "*.r filter=protocol" >.gitattributes &&
 635
 636                 cp "$TEST_ROOT/test.o" test.r &&
 637                 cp "$TEST_ROOT/test2.o" test2.r &&
 638                 echo "this will cause an error" >error.o &&
 639                 cp error.o error.r &&
 640
 641                 S=$(file_size test.r) &&
 642                 S2=$(file_size test2.r) &&
 643                 SE=$(file_size error.r) &&
 644
 645                 git add . &&
 646                 rm -f *.r &&
 647
 648                 filter_git checkout --quiet --no-progress . &&
 649                 cat >expected.log <<-EOF &&
 650                         START
 651                         init handshake complete
 652                         IN: smudge error.r $SE [OK] -- OUT: 0 [ERROR]
 653                         IN: smudge test.r $S [OK] -- OUT: $S . [OK]
 654                         IN: smudge test2.r $S2 [OK] -- OUT: $S2 . [OK]
 655                         STOP
 656                 EOF
 657                 test_cmp_exclude_clean expected.log rot13-filter.log &&
 658
 659                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test.r &&
 660                 test_cmp_committed_rot13 "$TEST_ROOT/test2.o" test2.r &&
 661                 test_cmp error.o error.r
 662         )
 663 '
 664
 665 test_expect_success PERL 'process filter abort stops processing of all further files' '
 666         test_config_global filter.protocol.process "rot13-filter.pl clean smudge" &&
 667         rm -rf repo &&
 668         mkdir repo &&
 669         (
 670                 cd repo &&
 671                 git init &&
 672
 673                 echo "*.r filter=protocol" >.gitattributes &&
 674
 675                 cp "$TEST_ROOT/test.o" test.r &&
 676                 cp "$TEST_ROOT/test2.o" test2.r &&
 677                 echo "error this blob and all future blobs" >abort.o &&
 678                 cp abort.o abort.r &&
 679
 680                 SA=$(file_size abort.r) &&
 681
 682                 git add . &&
 683                 rm -f *.r &&
 684
 685                 # Note: This test assumes that Git filters files in alphabetical
 686                 # order ("abort.r" before "test.r").
 687                 filter_git checkout --quiet --no-progress . &&
 688                 cat >expected.log <<-EOF &&
 689                         START
 690                         init handshake complete
 691                         IN: smudge abort.r $SA [OK] -- OUT: 0 [ABORT]
 692                         STOP
 693                 EOF
 694                 test_cmp_exclude_clean expected.log rot13-filter.log &&
 695
 696                 test_cmp "$TEST_ROOT/test.o" test.r &&
 697                 test_cmp "$TEST_ROOT/test2.o" test2.r &&
 698                 test_cmp abort.o abort.r
 699         )
 700 '
 701
 702 test_expect_success PERL 'invalid process filter must fail (and not hang!)' '
 703         test_config_global filter.protocol.process cat &&
 704         test_config_global filter.protocol.required true &&
 705         rm -rf repo &&
 706         mkdir repo &&
 707         (
 708                 cd repo &&
 709                 git init &&
 710
 711                 echo "*.r filter=protocol" >.gitattributes &&
 712
 713                 cp "$TEST_ROOT/test.o" test.r &&
 714                 test_must_fail git add . 2>git-stderr.log &&
 715                 grep "does not support filter protocol version" git-stderr.log
 716         )
 717 '
 718
 719 test_done