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-tool genrandom some-seed $LEN |
  23                 perl -pe "s/./chr((ord($&) % 26) + ord('a'))/sge" >"$TEST_ROOT/$NAME"
  24 }
  25
  26 filter_git () {
  27         rm -f *.log &&
  28         git "$@"
  29 }
  30
  31 # Compare two files and ensure that `clean` and `smudge` respectively are
  32 # called at least once if specified in the `expect` file. The actual
  33 # invocation count is not relevant because their number can vary.
  34 # c.f. http://lore.kernel.org/git/xmqqshv18i8i.fsf@gitster.mtv.corp.google.com/
  35 test_cmp_count () {
  36         expect=$1
  37         actual=$2
  38         for FILE in "$expect" "$actual"
  39         do
  40                 sort "$FILE" | uniq -c |
  41                 sed -e "s/^ *[0-9][0-9]*[       ]*IN: /x IN: /" >"$FILE.tmp"
  42         done &&
  43         test_cmp "$expect.tmp" "$actual.tmp" &&
  44         rm "$expect.tmp" "$actual.tmp"
  45 }
  46
  47 # Compare two files but exclude all `clean` invocations because Git can
  48 # call `clean` zero or more times.
  49 # c.f. http://lore.kernel.org/git/xmqqshv18i8i.fsf@gitster.mtv.corp.google.com/
  50 test_cmp_exclude_clean () {
  51         expect=$1
  52         actual=$2
  53         for FILE in "$expect" "$actual"
  54         do
  55                 grep -v "IN: clean" "$FILE" >"$FILE.tmp"
  56         done &&
  57         test_cmp "$expect.tmp" "$actual.tmp" &&
  58         rm "$expect.tmp" "$actual.tmp"
  59 }
  60
  61 # Check that the contents of two files are equal and that their rot13 version
  62 # is equal to the committed content.
  63 test_cmp_committed_rot13 () {
  64         test_cmp "$1" "$2" &&
  65         rot13.sh <"$1" >expected &&
  66         git cat-file blob :"$2" >actual &&
  67         test_cmp expected actual
  68 }
  69
  70 test_expect_success setup '
  71         git config filter.rot13.smudge ./rot13.sh &&
  72         git config filter.rot13.clean ./rot13.sh &&
  73
  74         {
  75             echo "*.t filter=rot13"
  76             echo "*.i ident"
  77         } >.gitattributes &&
  78
  79         {
  80             echo a b c d e f g h i j k l m
  81             echo n o p q r s t u v w x y z
  82             echo '\''$Id$'\''
  83         } >test &&
  84         cat test >test.t &&
  85         cat test >test.o &&
  86         cat test >test.i &&
  87         git add test test.t test.i &&
  88         rm -f test test.t test.i &&
  89         git checkout -- test test.t test.i &&
  90
  91         echo "content-test2" >test2.o &&
  92         echo "content-test3 - filename with special characters" >"test3 '\''sq'\'',\$x=.o"
  93 '
  94
  95 script='s/^\$Id: \([0-9a-f]*\) \$/\1/p'
  96
  97 test_expect_success check '
  98
  99         test_cmp test.o test &&
 100         test_cmp test.o test.t &&
 101
 102         # ident should be stripped in the repository
 103         git diff --raw --exit-code :test :test.i &&
 104         id=$(git rev-parse --verify :test) &&
 105         embedded=$(sed -ne "$script" test.i) &&
 106         test "z$id" = "z$embedded" &&
 107
 108         git cat-file blob :test.t >test.r &&
 109
 110         ./rot13.sh <test.o >test.t &&
 111         test_cmp test.r test.t
 112 '
 113
 114 # If an expanded ident ever gets into the repository, we want to make sure that
 115 # it is collapsed before being expanded again on checkout
 116 test_expect_success expanded_in_repo '
 117         {
 118                 echo "File with expanded keywords"
 119                 echo "\$Id\$"
 120                 echo "\$Id:\$"
 121                 echo "\$Id: 0000000000000000000000000000000000000000 \$"
 122                 echo "\$Id: NoSpaceAtEnd\$"
 123                 echo "\$Id:NoSpaceAtFront \$"
 124                 echo "\$Id:NoSpaceAtEitherEnd\$"
 125                 echo "\$Id: NoTerminatingSymbol"
 126                 echo "\$Id: Foreign Commit With Spaces \$"
 127         } >expanded-keywords.0 &&
 128
 129         {
 130                 cat expanded-keywords.0 &&
 131                 printf "\$Id: NoTerminatingSymbolAtEOF"
 132         } >expanded-keywords &&
 133         cat expanded-keywords >expanded-keywords-crlf &&
 134         git add expanded-keywords expanded-keywords-crlf &&
 135         git commit -m "File with keywords expanded" &&
 136         id=$(git rev-parse --verify :expanded-keywords) &&
 137
 138         {
 139                 echo "File with expanded keywords"
 140                 echo "\$Id: $id \$"
 141                 echo "\$Id: $id \$"
 142                 echo "\$Id: $id \$"
 143                 echo "\$Id: $id \$"
 144                 echo "\$Id: $id \$"
 145                 echo "\$Id: $id \$"
 146                 echo "\$Id: NoTerminatingSymbol"
 147                 echo "\$Id: Foreign Commit With Spaces \$"
 148         } >expected-output.0 &&
 149         {
 150                 cat expected-output.0 &&
 151                 printf "\$Id: NoTerminatingSymbolAtEOF"
 152         } >expected-output &&
 153         {
 154                 append_cr <expected-output.0 &&
 155                 printf "\$Id: NoTerminatingSymbolAtEOF"
 156         } >expected-output-crlf &&
 157         {
 158                 echo "expanded-keywords ident"
 159                 echo "expanded-keywords-crlf ident text eol=crlf"
 160         } >>.gitattributes &&
 161
 162         rm -f expanded-keywords expanded-keywords-crlf &&
 163
 164         git checkout -- expanded-keywords &&
 165         test_cmp expected-output expanded-keywords &&
 166
 167         git checkout -- expanded-keywords-crlf &&
 168         test_cmp expected-output-crlf expanded-keywords-crlf
 169 '
 170
 171 # The use of %f in a filter definition is expanded to the path to
 172 # the filename being smudged or cleaned.  It must be shell escaped.
 173 # First, set up some interesting file names and pet them in
 174 # .gitattributes.
 175 test_expect_success 'filter shell-escaped filenames' '
 176         cat >argc.sh <<-EOF &&
 177         #!$SHELL_PATH
 178         cat >/dev/null
 179         echo argc: \$# "\$@"
 180         EOF
 181         normal=name-no-magic &&
 182         special="name  with '\''sq'\'' and \$x" &&
 183         echo some test text >"$normal" &&
 184         echo some test text >"$special" &&
 185         git add "$normal" "$special" &&
 186         git commit -q -m "add files" &&
 187         echo "name* filter=argc" >.gitattributes &&
 188
 189         # delete the files and check them out again, using a smudge filter
 190         # that will count the args and echo the command-line back to us
 191         test_config filter.argc.smudge "sh ./argc.sh %f" &&
 192         rm "$normal" "$special" &&
 193         git checkout -- "$normal" "$special" &&
 194
 195         # make sure argc.sh counted the right number of args
 196         echo "argc: 1 $normal" >expect &&
 197         test_cmp expect "$normal" &&
 198         echo "argc: 1 $special" >expect &&
 199         test_cmp expect "$special" &&
 200
 201         # do the same thing, but with more args in the filter expression
 202         test_config filter.argc.smudge "sh ./argc.sh %f --my-extra-arg" &&
 203         rm "$normal" "$special" &&
 204         git checkout -- "$normal" "$special" &&
 205
 206         # make sure argc.sh counted the right number of args
 207         echo "argc: 2 $normal --my-extra-arg" >expect &&
 208         test_cmp expect "$normal" &&
 209         echo "argc: 2 $special --my-extra-arg" >expect &&
 210         test_cmp expect "$special" &&
 211         :
 212 '
 213
 214 test_expect_success 'required filter should filter data' '
 215         test_config filter.required.smudge ./rot13.sh &&
 216         test_config filter.required.clean ./rot13.sh &&
 217         test_config filter.required.required true &&
 218
 219         echo "*.r filter=required" >.gitattributes &&
 220
 221         cat test.o >test.r &&
 222         git add test.r &&
 223
 224         rm -f test.r &&
 225         git checkout -- test.r &&
 226         test_cmp test.o test.r &&
 227
 228         ./rot13.sh <test.o >expected &&
 229         git cat-file blob :test.r >actual &&
 230         test_cmp expected actual
 231 '
 232
 233 test_expect_success 'required filter smudge failure' '
 234         test_config filter.failsmudge.smudge false &&
 235         test_config filter.failsmudge.clean cat &&
 236         test_config filter.failsmudge.required true &&
 237
 238         echo "*.fs filter=failsmudge" >.gitattributes &&
 239
 240         echo test >test.fs &&
 241         git add test.fs &&
 242         rm -f test.fs &&
 243         test_must_fail git checkout -- test.fs
 244 '
 245
 246 test_expect_success 'required filter clean failure' '
 247         test_config filter.failclean.smudge cat &&
 248         test_config filter.failclean.clean false &&
 249         test_config filter.failclean.required true &&
 250
 251         echo "*.fc filter=failclean" >.gitattributes &&
 252
 253         echo test >test.fc &&
 254         test_must_fail git add test.fc
 255 '
 256
 257 test_expect_success 'filtering large input to small output should use little memory' '
 258         test_config filter.devnull.clean "cat >/dev/null" &&
 259         test_config filter.devnull.required true &&
 260         for i in $(test_seq 1 30); do printf "%1048576d" 1; done >30MB &&
 261         echo "30MB filter=devnull" >.gitattributes &&
 262         GIT_MMAP_LIMIT=1m GIT_ALLOC_LIMIT=1m git add 30MB
 263 '
 264
 265 test_expect_success 'filter that does not read is fine' '
 266         test-tool genrandom foo $((128 * 1024 + 1)) >big &&
 267         echo "big filter=epipe" >.gitattributes &&
 268         test_config filter.epipe.clean "echo xyzzy" &&
 269         git add big &&
 270         git cat-file blob :big >actual &&
 271         echo xyzzy >expect &&
 272         test_cmp expect actual
 273 '
 274
 275 test_expect_success EXPENSIVE 'filter large file' '
 276         test_config filter.largefile.smudge cat &&
 277         test_config filter.largefile.clean cat &&
 278         for i in $(test_seq 1 2048); do printf "%1048576d" 1; done >2GB &&
 279         echo "2GB filter=largefile" >.gitattributes &&
 280         git add 2GB 2>err &&
 281         test_must_be_empty err &&
 282         rm -f 2GB &&
 283         git checkout -- 2GB 2>err &&
 284         test_must_be_empty err
 285 '
 286
 287 test_expect_success "filter: clean empty file" '
 288         test_config filter.in-repo-header.clean  "echo cleaned && cat" &&
 289         test_config filter.in-repo-header.smudge "sed 1d" &&
 290
 291         echo "empty-in-worktree    filter=in-repo-header" >>.gitattributes &&
 292         >empty-in-worktree &&
 293
 294         echo cleaned >expected &&
 295         git add empty-in-worktree &&
 296         git show :empty-in-worktree >actual &&
 297         test_cmp expected actual
 298 '
 299
 300 test_expect_success "filter: smudge empty file" '
 301         test_config filter.empty-in-repo.clean "cat >/dev/null" &&
 302         test_config filter.empty-in-repo.smudge "echo smudged && cat" &&
 303
 304         echo "empty-in-repo filter=empty-in-repo" >>.gitattributes &&
 305         echo dead data walking >empty-in-repo &&
 306         git add empty-in-repo &&
 307
 308         echo smudged >expected &&
 309         git checkout-index --prefix=filtered- empty-in-repo &&
 310         test_cmp expected filtered-empty-in-repo
 311 '
 312
 313 test_expect_success 'disable filter with empty override' '
 314         test_config_global filter.disable.smudge false &&
 315         test_config_global filter.disable.clean false &&
 316         test_config filter.disable.smudge false &&
 317         test_config filter.disable.clean false &&
 318
 319         echo "*.disable filter=disable" >.gitattributes &&
 320
 321         echo test >test.disable &&
 322         git -c filter.disable.clean= add test.disable 2>err &&
 323         test_must_be_empty err &&
 324         rm -f test.disable &&
 325         git -c filter.disable.smudge= checkout -- test.disable 2>err &&
 326         test_must_be_empty err
 327 '
 328
 329 test_expect_success 'diff does not reuse worktree files that need cleaning' '
 330         test_config filter.counter.clean "echo . >>count; sed s/^/clean:/" &&
 331         echo "file filter=counter" >.gitattributes &&
 332         test_commit one file &&
 333         test_commit two file &&
 334
 335         >count &&
 336         git diff-tree -p HEAD &&
 337         test_line_count = 0 count
 338 '
 339
 340 test_expect_success PERL 'required process filter should filter data' '
 341         test_config_global filter.protocol.process "rot13-filter.pl debug.log clean smudge" &&
 342         test_config_global filter.protocol.required true &&
 343         rm -rf repo &&
 344         mkdir repo &&
 345         (
 346                 cd repo &&
 347                 git init &&
 348
 349                 echo "*.r filter=protocol" >.gitattributes &&
 350                 git add . &&
 351                 git commit -m "test commit 1" &&
 352                 git branch empty-branch &&
 353
 354                 cp "$TEST_ROOT/test.o" test.r &&
 355                 cp "$TEST_ROOT/test2.o" test2.r &&
 356                 mkdir testsubdir &&
 357                 cp "$TEST_ROOT/test3 '\''sq'\'',\$x=.o" "testsubdir/test3 '\''sq'\'',\$x=.r" &&
 358                 >test4-empty.r &&
 359
 360                 S=$(test_file_size test.r) &&
 361                 S2=$(test_file_size test2.r) &&
 362                 S3=$(test_file_size "testsubdir/test3 '\''sq'\'',\$x=.r") &&
 363                 M=$(git hash-object test.r) &&
 364                 M2=$(git hash-object test2.r) &&
 365                 M3=$(git hash-object "testsubdir/test3 '\''sq'\'',\$x=.r") &&
 366                 EMPTY=$(git hash-object /dev/null) &&
 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: $S3 . [OK]
 376                         STOP
 377                 EOF
 378                 test_cmp_count expected.log debug.log &&
 379
 380                 git commit -m "test commit 2" &&
 381                 MASTER=$(git rev-parse --verify master) &&
 382                 META="ref=refs/heads/master treeish=$MASTER" &&
 383                 rm -f test2.r "testsubdir/test3 '\''sq'\'',\$x=.r" &&
 384
 385                 filter_git checkout --quiet --no-progress . &&
 386                 cat >expected.log <<-EOF &&
 387                         START
 388                         init handshake complete
 389                         IN: smudge test2.r blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 390                         IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
 391                         STOP
 392                 EOF
 393                 test_cmp_exclude_clean expected.log debug.log &&
 394
 395                 # Make sure that the file appears dirty, so checkout below has to
 396                 # run the configured filter.
 397                 touch test.r &&
 398                 filter_git checkout --quiet --no-progress empty-branch &&
 399                 cat >expected.log <<-EOF &&
 400                         START
 401                         init handshake complete
 402                         IN: clean test.r $S [OK] -- OUT: $S . [OK]
 403                         STOP
 404                 EOF
 405                 test_cmp_exclude_clean expected.log debug.log &&
 406
 407                 filter_git checkout --quiet --no-progress master &&
 408                 cat >expected.log <<-EOF &&
 409                         START
 410                         init handshake complete
 411                         IN: smudge test.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 412                         IN: smudge test2.r $META blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 413                         IN: smudge test4-empty.r $META blob=$EMPTY 0 [OK] -- OUT: 0  [OK]
 414                         IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $META blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
 415                         STOP
 416                 EOF
 417                 test_cmp_exclude_clean expected.log debug.log &&
 418
 419                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test.r &&
 420                 test_cmp_committed_rot13 "$TEST_ROOT/test2.o" test2.r &&
 421                 test_cmp_committed_rot13 "$TEST_ROOT/test3 '\''sq'\'',\$x=.o" "testsubdir/test3 '\''sq'\'',\$x=.r"
 422         )
 423 '
 424
 425 test_expect_success PERL 'required process filter should filter data for various subcommands' '
 426         test_config_global filter.protocol.process "rot13-filter.pl debug.log clean smudge" &&
 427         test_config_global filter.protocol.required true &&
 428         (
 429                 cd repo &&
 430
 431                 S=$(test_file_size test.r) &&
 432                 S2=$(test_file_size test2.r) &&
 433                 S3=$(test_file_size "testsubdir/test3 '\''sq'\'',\$x=.r") &&
 434                 M=$(git hash-object test.r) &&
 435                 M2=$(git hash-object test2.r) &&
 436                 M3=$(git hash-object "testsubdir/test3 '\''sq'\'',\$x=.r") &&
 437                 EMPTY=$(git hash-object /dev/null) &&
 438
 439                 MASTER=$(git rev-parse --verify master) &&
 440
 441                 cp "$TEST_ROOT/test.o" test5.r &&
 442                 git add test5.r &&
 443                 git commit -m "test commit 3" &&
 444                 git checkout empty-branch &&
 445                 filter_git rebase --onto empty-branch master^^ master &&
 446                 MASTER2=$(git rev-parse --verify master) &&
 447                 META="ref=refs/heads/master treeish=$MASTER2" &&
 448                 cat >expected.log <<-EOF &&
 449                         START
 450                         init handshake complete
 451                         IN: smudge test.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 452                         IN: smudge test2.r $META blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 453                         IN: smudge test4-empty.r $META blob=$EMPTY 0 [OK] -- OUT: 0  [OK]
 454                         IN: smudge test5.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 455                         IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $META blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
 456                         STOP
 457                 EOF
 458                 test_cmp_exclude_clean expected.log debug.log &&
 459
 460                 git reset --hard empty-branch &&
 461                 filter_git reset --hard $MASTER &&
 462                 META="treeish=$MASTER" &&
 463                 cat >expected.log <<-EOF &&
 464                         START
 465                         init handshake complete
 466                         IN: smudge test.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 467                         IN: smudge test2.r $META blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 468                         IN: smudge test4-empty.r $META blob=$EMPTY 0 [OK] -- OUT: 0  [OK]
 469                         IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $META blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
 470                         STOP
 471                 EOF
 472                 test_cmp_exclude_clean expected.log debug.log &&
 473
 474                 git branch old-master $MASTER &&
 475                 git reset --hard empty-branch &&
 476                 filter_git reset --hard old-master &&
 477                 META="ref=refs/heads/old-master treeish=$MASTER" &&
 478                 cat >expected.log <<-EOF &&
 479                         START
 480                         init handshake complete
 481                         IN: smudge test.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 482                         IN: smudge test2.r $META blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 483                         IN: smudge test4-empty.r $META blob=$EMPTY 0 [OK] -- OUT: 0  [OK]
 484                         IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $META blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
 485                         STOP
 486                 EOF
 487                 test_cmp_exclude_clean expected.log debug.log &&
 488
 489                 git checkout -b merge empty-branch &&
 490                 git branch -f master $MASTER2 &&
 491                 filter_git merge master &&
 492                 META="treeish=$MASTER2" &&
 493                 cat >expected.log <<-EOF &&
 494                         START
 495                         init handshake complete
 496                         IN: smudge test.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 497                         IN: smudge test2.r $META blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 498                         IN: smudge test4-empty.r $META blob=$EMPTY 0 [OK] -- OUT: 0  [OK]
 499                         IN: smudge test5.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 500                         IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $META blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
 501                         STOP
 502                 EOF
 503                 test_cmp_exclude_clean expected.log debug.log &&
 504
 505                 filter_git archive master >/dev/null &&
 506                 META="ref=refs/heads/master treeish=$MASTER2" &&
 507                 cat >expected.log <<-EOF &&
 508                         START
 509                         init handshake complete
 510                         IN: smudge test.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 511                         IN: smudge test2.r $META blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 512                         IN: smudge test4-empty.r $META blob=$EMPTY 0 [OK] -- OUT: 0  [OK]
 513                         IN: smudge test5.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 514                         IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $META blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
 515                         STOP
 516                 EOF
 517                 test_cmp_exclude_clean expected.log debug.log &&
 518
 519                 TREE="$(git rev-parse $MASTER2^{tree})" &&
 520                 filter_git archive $TREE >/dev/null &&
 521                 META="treeish=$TREE" &&
 522                 cat >expected.log <<-EOF &&
 523                         START
 524                         init handshake complete
 525                         IN: smudge test.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 526                         IN: smudge test2.r $META blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 527                         IN: smudge test4-empty.r $META blob=$EMPTY 0 [OK] -- OUT: 0  [OK]
 528                         IN: smudge test5.r $META blob=$M $S [OK] -- OUT: $S . [OK]
 529                         IN: smudge testsubdir/test3 '\''sq'\'',\$x=.r $META blob=$M3 $S3 [OK] -- OUT: $S3 . [OK]
 530                         STOP
 531                 EOF
 532                 test_cmp_exclude_clean expected.log debug.log
 533         )
 534 '
 535
 536 test_expect_success PERL 'required process filter takes precedence' '
 537         test_config_global filter.protocol.clean false &&
 538         test_config_global filter.protocol.process "rot13-filter.pl debug.log clean" &&
 539         test_config_global filter.protocol.required true &&
 540         rm -rf repo &&
 541         mkdir repo &&
 542         (
 543                 cd repo &&
 544                 git init &&
 545
 546                 echo "*.r filter=protocol" >.gitattributes &&
 547                 cp "$TEST_ROOT/test.o" test.r &&
 548                 S=$(test_file_size test.r) &&
 549
 550                 # Check that the process filter is invoked here
 551                 filter_git add . &&
 552                 cat >expected.log <<-EOF &&
 553                         START
 554                         init handshake complete
 555                         IN: clean test.r $S [OK] -- OUT: $S . [OK]
 556                         STOP
 557                 EOF
 558                 test_cmp_count expected.log debug.log
 559         )
 560 '
 561
 562 test_expect_success PERL 'required process filter should be used only for "clean" operation only' '
 563         test_config_global filter.protocol.process "rot13-filter.pl debug.log clean" &&
 564         rm -rf repo &&
 565         mkdir repo &&
 566         (
 567                 cd repo &&
 568                 git init &&
 569
 570                 echo "*.r filter=protocol" >.gitattributes &&
 571                 cp "$TEST_ROOT/test.o" test.r &&
 572                 S=$(test_file_size test.r) &&
 573
 574                 filter_git add . &&
 575                 cat >expected.log <<-EOF &&
 576                         START
 577                         init handshake complete
 578                         IN: clean test.r $S [OK] -- OUT: $S . [OK]
 579                         STOP
 580                 EOF
 581                 test_cmp_count expected.log debug.log &&
 582
 583                 rm test.r &&
 584
 585                 filter_git checkout --quiet --no-progress . &&
 586                 # If the filter would be used for "smudge", too, we would see
 587                 # "IN: smudge test.r 57 [OK] -- OUT: 57 . [OK]" here
 588                 cat >expected.log <<-EOF &&
 589                         START
 590                         init handshake complete
 591                         STOP
 592                 EOF
 593                 test_cmp_exclude_clean expected.log debug.log
 594         )
 595 '
 596
 597 test_expect_success PERL 'required process filter should process multiple packets' '
 598         test_config_global filter.protocol.process "rot13-filter.pl debug.log clean smudge" &&
 599         test_config_global filter.protocol.required true &&
 600
 601         rm -rf repo &&
 602         mkdir repo &&
 603         (
 604                 cd repo &&
 605                 git init &&
 606
 607                 # Generate data requiring 1, 2, 3 packets
 608                 S=65516 && # PKTLINE_DATA_MAXLEN -> Maximal size of a packet
 609                 generate_random_characters $(($S    )) 1pkt_1__.file &&
 610                 generate_random_characters $(($S  +1)) 2pkt_1+1.file &&
 611                 generate_random_characters $(($S*2-1)) 2pkt_2-1.file &&
 612                 generate_random_characters $(($S*2  )) 2pkt_2__.file &&
 613                 generate_random_characters $(($S*2+1)) 3pkt_2+1.file &&
 614
 615                 for FILE in "$TEST_ROOT"/*.file
 616                 do
 617                         cp "$FILE" . &&
 618                         rot13.sh <"$FILE" >"$FILE.rot13"
 619                 done &&
 620
 621                 echo "*.file filter=protocol" >.gitattributes &&
 622                 filter_git add *.file .gitattributes &&
 623                 cat >expected.log <<-EOF &&
 624                         START
 625                         init handshake complete
 626                         IN: clean 1pkt_1__.file $(($S    )) [OK] -- OUT: $(($S    )) . [OK]
 627                         IN: clean 2pkt_1+1.file $(($S  +1)) [OK] -- OUT: $(($S  +1)) .. [OK]
 628                         IN: clean 2pkt_2-1.file $(($S*2-1)) [OK] -- OUT: $(($S*2-1)) .. [OK]
 629                         IN: clean 2pkt_2__.file $(($S*2  )) [OK] -- OUT: $(($S*2  )) .. [OK]
 630                         IN: clean 3pkt_2+1.file $(($S*2+1)) [OK] -- OUT: $(($S*2+1)) ... [OK]
 631                         STOP
 632                 EOF
 633                 test_cmp_count expected.log debug.log &&
 634
 635                 M1="blob=$(git hash-object 1pkt_1__.file)" &&
 636                 M2="blob=$(git hash-object 2pkt_1+1.file)" &&
 637                 M3="blob=$(git hash-object 2pkt_2-1.file)" &&
 638                 M4="blob=$(git hash-object 2pkt_2__.file)" &&
 639                 M5="blob=$(git hash-object 3pkt_2+1.file)" &&
 640                 rm -f *.file debug.log &&
 641
 642                 filter_git checkout --quiet --no-progress -- *.file &&
 643                 cat >expected.log <<-EOF &&
 644                         START
 645                         init handshake complete
 646                         IN: smudge 1pkt_1__.file $M1 $(($S    )) [OK] -- OUT: $(($S    )) . [OK]
 647                         IN: smudge 2pkt_1+1.file $M2 $(($S  +1)) [OK] -- OUT: $(($S  +1)) .. [OK]
 648                         IN: smudge 2pkt_2-1.file $M3 $(($S*2-1)) [OK] -- OUT: $(($S*2-1)) .. [OK]
 649                         IN: smudge 2pkt_2__.file $M4 $(($S*2  )) [OK] -- OUT: $(($S*2  )) .. [OK]
 650                         IN: smudge 3pkt_2+1.file $M5 $(($S*2+1)) [OK] -- OUT: $(($S*2+1)) ... [OK]
 651                         STOP
 652                 EOF
 653                 test_cmp_exclude_clean expected.log debug.log &&
 654
 655                 for FILE in *.file
 656                 do
 657                         test_cmp_committed_rot13 "$TEST_ROOT/$FILE" $FILE
 658                 done
 659         )
 660 '
 661
 662 test_expect_success PERL 'required process filter with clean error should fail' '
 663         test_config_global filter.protocol.process "rot13-filter.pl debug.log clean smudge" &&
 664         test_config_global filter.protocol.required true &&
 665         rm -rf repo &&
 666         mkdir repo &&
 667         (
 668                 cd repo &&
 669                 git init &&
 670
 671                 echo "*.r filter=protocol" >.gitattributes &&
 672
 673                 cp "$TEST_ROOT/test.o" test.r &&
 674                 echo "this is going to fail" >clean-write-fail.r &&
 675                 echo "content-test3-subdir" >test3.r &&
 676
 677                 test_must_fail git add .
 678         )
 679 '
 680
 681 test_expect_success PERL 'process filter should restart after unexpected write failure' '
 682         test_config_global filter.protocol.process "rot13-filter.pl debug.log clean smudge" &&
 683         rm -rf repo &&
 684         mkdir repo &&
 685         (
 686                 cd repo &&
 687                 git init &&
 688
 689                 echo "*.r filter=protocol" >.gitattributes &&
 690
 691                 cp "$TEST_ROOT/test.o" test.r &&
 692                 cp "$TEST_ROOT/test2.o" test2.r &&
 693                 echo "this is going to fail" >smudge-write-fail.o &&
 694                 cp smudge-write-fail.o smudge-write-fail.r &&
 695
 696                 S=$(test_file_size test.r) &&
 697                 S2=$(test_file_size test2.r) &&
 698                 SF=$(test_file_size smudge-write-fail.r) &&
 699                 M=$(git hash-object test.r) &&
 700                 M2=$(git hash-object test2.r) &&
 701                 MF=$(git hash-object smudge-write-fail.r) &&
 702                 rm -f debug.log &&
 703
 704                 git add . &&
 705                 rm -f *.r &&
 706
 707                 rm -f debug.log &&
 708                 git checkout --quiet --no-progress . 2>git-stderr.log &&
 709
 710                 grep "smudge write error at" git-stderr.log &&
 711                 test_i18ngrep "error: external filter" git-stderr.log &&
 712
 713                 cat >expected.log <<-EOF &&
 714                         START
 715                         init handshake complete
 716                         IN: smudge smudge-write-fail.r blob=$MF $SF [OK] -- [WRITE FAIL]
 717                         START
 718                         init handshake complete
 719                         IN: smudge test.r blob=$M $S [OK] -- OUT: $S . [OK]
 720                         IN: smudge test2.r blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 721                         STOP
 722                 EOF
 723                 test_cmp_exclude_clean expected.log debug.log &&
 724
 725                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test.r &&
 726                 test_cmp_committed_rot13 "$TEST_ROOT/test2.o" test2.r &&
 727
 728                 # Smudge failed
 729                 ! test_cmp smudge-write-fail.o smudge-write-fail.r &&
 730                 rot13.sh <smudge-write-fail.o >expected &&
 731                 git cat-file blob :smudge-write-fail.r >actual &&
 732                 test_cmp expected actual
 733         )
 734 '
 735
 736 test_expect_success PERL 'process filter should not be restarted if it signals an error' '
 737         test_config_global filter.protocol.process "rot13-filter.pl debug.log clean smudge" &&
 738         rm -rf repo &&
 739         mkdir repo &&
 740         (
 741                 cd repo &&
 742                 git init &&
 743
 744                 echo "*.r filter=protocol" >.gitattributes &&
 745
 746                 cp "$TEST_ROOT/test.o" test.r &&
 747                 cp "$TEST_ROOT/test2.o" test2.r &&
 748                 echo "this will cause an error" >error.o &&
 749                 cp error.o error.r &&
 750
 751                 S=$(test_file_size test.r) &&
 752                 S2=$(test_file_size test2.r) &&
 753                 SE=$(test_file_size error.r) &&
 754                 M=$(git hash-object test.r) &&
 755                 M2=$(git hash-object test2.r) &&
 756                 ME=$(git hash-object error.r) &&
 757                 rm -f debug.log &&
 758
 759                 git add . &&
 760                 rm -f *.r &&
 761
 762                 filter_git checkout --quiet --no-progress . &&
 763                 cat >expected.log <<-EOF &&
 764                         START
 765                         init handshake complete
 766                         IN: smudge error.r blob=$ME $SE [OK] -- [ERROR]
 767                         IN: smudge test.r blob=$M $S [OK] -- OUT: $S . [OK]
 768                         IN: smudge test2.r blob=$M2 $S2 [OK] -- OUT: $S2 . [OK]
 769                         STOP
 770                 EOF
 771                 test_cmp_exclude_clean expected.log debug.log &&
 772
 773                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test.r &&
 774                 test_cmp_committed_rot13 "$TEST_ROOT/test2.o" test2.r &&
 775                 test_cmp error.o error.r
 776         )
 777 '
 778
 779 test_expect_success PERL 'process filter abort stops processing of all further files' '
 780         test_config_global filter.protocol.process "rot13-filter.pl debug.log clean smudge" &&
 781         rm -rf repo &&
 782         mkdir repo &&
 783         (
 784                 cd repo &&
 785                 git init &&
 786
 787                 echo "*.r filter=protocol" >.gitattributes &&
 788
 789                 cp "$TEST_ROOT/test.o" test.r &&
 790                 cp "$TEST_ROOT/test2.o" test2.r &&
 791                 echo "error this blob and all future blobs" >abort.o &&
 792                 cp abort.o abort.r &&
 793
 794                 M="blob=$(git hash-object abort.r)" &&
 795                 rm -f debug.log &&
 796                 SA=$(test_file_size abort.r) &&
 797
 798                 git add . &&
 799                 rm -f *.r &&
 800
 801
 802                 # Note: This test assumes that Git filters files in alphabetical
 803                 # order ("abort.r" before "test.r").
 804                 filter_git checkout --quiet --no-progress . &&
 805                 cat >expected.log <<-EOF &&
 806                         START
 807                         init handshake complete
 808                         IN: smudge abort.r $M $SA [OK] -- [ABORT]
 809                         STOP
 810                 EOF
 811                 test_cmp_exclude_clean expected.log debug.log &&
 812
 813                 test_cmp "$TEST_ROOT/test.o" test.r &&
 814                 test_cmp "$TEST_ROOT/test2.o" test2.r &&
 815                 test_cmp abort.o abort.r
 816         )
 817 '
 818
 819 test_expect_success PERL 'invalid process filter must fail (and not hang!)' '
 820         test_config_global filter.protocol.process cat &&
 821         test_config_global filter.protocol.required true &&
 822         rm -rf repo &&
 823         mkdir repo &&
 824         (
 825                 cd repo &&
 826                 git init &&
 827
 828                 echo "*.r filter=protocol" >.gitattributes &&
 829
 830                 cp "$TEST_ROOT/test.o" test.r &&
 831                 test_must_fail git add . 2>git-stderr.log &&
 832                 grep "expected git-filter-server" git-stderr.log
 833         )
 834 '
 835
 836 test_expect_success PERL 'delayed checkout in process filter' '
 837         test_config_global filter.a.process "rot13-filter.pl a.log clean smudge delay" &&
 838         test_config_global filter.a.required true &&
 839         test_config_global filter.b.process "rot13-filter.pl b.log clean smudge delay" &&
 840         test_config_global filter.b.required true &&
 841
 842         rm -rf repo &&
 843         mkdir repo &&
 844         (
 845                 cd repo &&
 846                 git init &&
 847                 echo "*.a filter=a" >.gitattributes &&
 848                 echo "*.b filter=b" >>.gitattributes &&
 849                 cp "$TEST_ROOT/test.o" test.a &&
 850                 cp "$TEST_ROOT/test.o" test-delay10.a &&
 851                 cp "$TEST_ROOT/test.o" test-delay11.a &&
 852                 cp "$TEST_ROOT/test.o" test-delay20.a &&
 853                 cp "$TEST_ROOT/test.o" test-delay10.b &&
 854                 git add . &&
 855                 git commit -m "test commit"
 856         ) &&
 857
 858         S=$(test_file_size "$TEST_ROOT/test.o") &&
 859         PM="ref=refs/heads/master treeish=$(git -C repo rev-parse --verify master) " &&
 860         M="${PM}blob=$(git -C repo rev-parse --verify master:test.a)" &&
 861         cat >a.exp <<-EOF &&
 862                 START
 863                 init handshake complete
 864                 IN: smudge test.a $M $S [OK] -- OUT: $S . [OK]
 865                 IN: smudge test-delay10.a $M $S [OK] -- [DELAYED]
 866                 IN: smudge test-delay11.a $M $S [OK] -- [DELAYED]
 867                 IN: smudge test-delay20.a $M $S [OK] -- [DELAYED]
 868                 IN: list_available_blobs test-delay10.a test-delay11.a [OK]
 869                 IN: smudge test-delay10.a $M 0 [OK] -- OUT: $S . [OK]
 870                 IN: smudge test-delay11.a $M 0 [OK] -- OUT: $S . [OK]
 871                 IN: list_available_blobs test-delay20.a [OK]
 872                 IN: smudge test-delay20.a $M 0 [OK] -- OUT: $S . [OK]
 873                 IN: list_available_blobs [OK]
 874                 STOP
 875         EOF
 876         cat >b.exp <<-EOF &&
 877                 START
 878                 init handshake complete
 879                 IN: smudge test-delay10.b $M $S [OK] -- [DELAYED]
 880                 IN: list_available_blobs test-delay10.b [OK]
 881                 IN: smudge test-delay10.b $M 0 [OK] -- OUT: $S . [OK]
 882                 IN: list_available_blobs [OK]
 883                 STOP
 884         EOF
 885
 886         rm -rf repo-cloned &&
 887         filter_git clone repo repo-cloned &&
 888         test_cmp_count a.exp repo-cloned/a.log &&
 889         test_cmp_count b.exp repo-cloned/b.log &&
 890
 891         (
 892                 cd repo-cloned &&
 893                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test.a &&
 894                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test-delay10.a &&
 895                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test-delay11.a &&
 896                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test-delay20.a &&
 897                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test-delay10.b &&
 898
 899                 rm *.a *.b &&
 900                 filter_git checkout . &&
 901                 # We are not checking out a ref here, so filter out ref metadata.
 902                 sed -e "s!$PM!!" ../a.exp >a.exp.filtered &&
 903                 sed -e "s!$PM!!" ../b.exp >b.exp.filtered &&
 904                 test_cmp_count a.exp.filtered a.log &&
 905                 test_cmp_count b.exp.filtered b.log &&
 906
 907                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test.a &&
 908                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test-delay10.a &&
 909                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test-delay11.a &&
 910                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test-delay20.a &&
 911                 test_cmp_committed_rot13 "$TEST_ROOT/test.o" test-delay10.b
 912         )
 913 '
 914
 915 test_expect_success PERL 'missing file in delayed checkout' '
 916         test_config_global filter.bug.process "rot13-filter.pl bug.log clean smudge delay" &&
 917         test_config_global filter.bug.required true &&
 918
 919         rm -rf repo &&
 920         mkdir repo &&
 921         (
 922                 cd repo &&
 923                 git init &&
 924                 echo "*.a filter=bug" >.gitattributes &&
 925                 cp "$TEST_ROOT/test.o" missing-delay.a &&
 926                 git add . &&
 927                 git commit -m "test commit"
 928         ) &&
 929
 930         rm -rf repo-cloned &&
 931         test_must_fail git clone repo repo-cloned 2>git-stderr.log &&
 932         grep "error: .missing-delay\.a. was not filtered properly" git-stderr.log
 933 '
 934
 935 test_expect_success PERL 'invalid file in delayed checkout' '
 936         test_config_global filter.bug.process "rot13-filter.pl bug.log clean smudge delay" &&
 937         test_config_global filter.bug.required true &&
 938
 939         rm -rf repo &&
 940         mkdir repo &&
 941         (
 942                 cd repo &&
 943                 git init &&
 944                 echo "*.a filter=bug" >.gitattributes &&
 945                 cp "$TEST_ROOT/test.o" invalid-delay.a &&
 946                 cp "$TEST_ROOT/test.o" unfiltered &&
 947                 git add . &&
 948                 git commit -m "test commit"
 949         ) &&
 950
 951         rm -rf repo-cloned &&
 952         test_must_fail git clone repo repo-cloned 2>git-stderr.log &&
 953         grep "error: external filter .* signaled that .unfiltered. is now available although it has not been delayed earlier" git-stderr.log
 954 '
 955
 956 test_done