t/t5000-tar-tree.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (C) 2005 Rene Scharfe
   4 #
   5
   6 test_description='git archive and git get-tar-commit-id test
   7
   8 This test covers the topics of file contents, commit date handling and
   9 commit id embedding:
  10
  11   The contents of the repository is compared to the extracted tar
  12   archive.  The repository contains simple text files, symlinks and a
  13   binary file (/bin/sh).  Only paths shorter than 99 characters are
  14   used.
  15
  16   git archive applies the commit date to every file in the archive it
  17   creates.  The test sets the commit date to a specific value and checks
  18   if the tar archive contains that value.
  19
  20   When giving git archive a commit id (in contrast to a tree id) it
  21   embeds this commit id into the tar archive as a comment.  The test
  22   checks the ability of git get-tar-commit-id to figure it out from the
  23   tar file.
  24
  25 '
  26
  27 . ./test-lib.sh
  28
  29 SUBSTFORMAT=%H%n
  30
  31 test_lazy_prereq TAR_NEEDS_PAX_FALLBACK '
  32         (
  33                 mkdir pax &&
  34                 cd pax &&
  35                 "$TAR" xf "$TEST_DIRECTORY"/t5000/pax.tar &&
  36                 test -f PaxHeaders.1791/file
  37         )
  38 '
  39
  40 test_lazy_prereq GZIP 'gzip --version'
  41
  42 get_pax_header() {
  43         file=$1
  44         header=$2=
  45
  46         while read len rest
  47         do
  48                 if test "$len" = $(echo "$len $rest" | wc -c)
  49                 then
  50                         case "$rest" in
  51                         $header*)
  52                                 echo "${rest#$header}"
  53                                 ;;
  54                         esac
  55                 fi
  56         done <"$file"
  57 }
  58
  59 check_tar() {
  60         tarfile=$1.tar
  61         listfile=$1.lst
  62         dir=$1
  63         dir_with_prefix=$dir/$2
  64
  65         test_expect_success ' extract tar archive' '
  66                 (mkdir $dir && cd $dir && "$TAR" xf -) <$tarfile
  67         '
  68
  69         test_expect_success TAR_NEEDS_PAX_FALLBACK ' interpret pax headers' '
  70                 (
  71                         cd $dir &&
  72                         for header in *.paxheader
  73                         do
  74                                 data=${header%.paxheader}.data &&
  75                                 if test -h $data || test -e $data
  76                                 then
  77                                         path=$(get_pax_header $header path) &&
  78                                         if test -n "$path"
  79                                         then
  80                                                 mv "$data" "$path"
  81                                         fi
  82                                 fi
  83                         done
  84                 )
  85         '
  86
  87         test_expect_success ' validate filenames' '
  88                 (cd ${dir_with_prefix}a && find .) | sort >$listfile &&
  89                 test_cmp a.lst $listfile
  90         '
  91
  92         test_expect_success ' validate file contents' '
  93                 diff -r a ${dir_with_prefix}a
  94         '
  95 }
  96
  97 test_expect_success \
  98     'populate workdir' \
  99     'mkdir a &&
 100      echo simple textfile >a/a &&
 101      ten=0123456789 && hundred=$ten$ten$ten$ten$ten$ten$ten$ten$ten$ten &&
 102      echo long filename >a/four$hundred &&
 103      mkdir a/bin &&
 104      test-genrandom "frotz" 500000 >a/bin/sh &&
 105      printf "A\$Format:%s\$O" "$SUBSTFORMAT" >a/substfile1 &&
 106      printf "A not substituted O" >a/substfile2 &&
 107      if test_have_prereq SYMLINKS; then
 108         ln -s a a/l1
 109      else
 110         printf %s a > a/l1
 111      fi &&
 112      (p=long_path_to_a_file && cd a &&
 113       for depth in 1 2 3 4 5; do mkdir $p && cd $p; done &&
 114       echo text >file_with_long_path) &&
 115      (cd a && find .) | sort >a.lst'
 116
 117 test_expect_success \
 118     'add ignored file' \
 119     'echo ignore me >a/ignored &&
 120      echo ignored export-ignore >.git/info/attributes'
 121
 122 test_expect_success 'add files to repository' '
 123         git add a &&
 124         GIT_COMMITTER_DATE="2005-05-27 22:00" git commit -m initial
 125 '
 126
 127 test_expect_success 'setup export-subst' '
 128         echo "substfile?" export-subst >>.git/info/attributes &&
 129         git log --max-count=1 "--pretty=format:A${SUBSTFORMAT}O" HEAD \
 130                 >a/substfile1
 131 '
 132
 133 test_expect_success \
 134     'create bare clone' \
 135     'git clone --bare . bare.git &&
 136      cp .git/info/attributes bare.git/info/attributes'
 137
 138 test_expect_success \
 139     'remove ignored file' \
 140     'rm a/ignored'
 141
 142 test_expect_success \
 143     'git archive' \
 144     'git archive HEAD >b.tar'
 145
 146 check_tar b
 147
 148 test_expect_success 'git archive --prefix=prefix/' '
 149         git archive --prefix=prefix/ HEAD >with_prefix.tar
 150 '
 151
 152 check_tar with_prefix prefix/
 153
 154 test_expect_success 'git-archive --prefix=olde-' '
 155         git archive --prefix=olde- HEAD >with_olde-prefix.tar
 156 '
 157
 158 check_tar with_olde-prefix olde-
 159
 160 test_expect_success 'git archive on large files' '
 161     test_config core.bigfilethreshold 1 &&
 162     git archive HEAD >b3.tar &&
 163     test_cmp_bin b.tar b3.tar
 164 '
 165
 166 test_expect_success \
 167     'git archive in a bare repo' \
 168     '(cd bare.git && git archive HEAD) >b3.tar'
 169
 170 test_expect_success \
 171     'git archive vs. the same in a bare repo' \
 172     'test_cmp_bin b.tar b3.tar'
 173
 174 test_expect_success 'git archive with --output' \
 175     'git archive --output=b4.tar HEAD &&
 176     test_cmp_bin b.tar b4.tar'
 177
 178 test_expect_success 'git archive --remote' \
 179     'git archive --remote=. HEAD >b5.tar &&
 180     test_cmp_bin b.tar b5.tar'
 181
 182 test_expect_success \
 183     'validate file modification time' \
 184     'mkdir extract &&
 185      "$TAR" xf b.tar -C extract a/a &&
 186      test-chmtime -v +0 extract/a/a |cut -f 1 >b.mtime &&
 187      echo "1117231200" >expected.mtime &&
 188      test_cmp expected.mtime b.mtime'
 189
 190 test_expect_success \
 191     'git get-tar-commit-id' \
 192     'git get-tar-commit-id <b.tar >b.commitid &&
 193      test_cmp .git/$(git symbolic-ref HEAD) b.commitid'
 194
 195 test_expect_success 'git archive with --output, override inferred format' '
 196         git archive --format=tar --output=d4.zip HEAD &&
 197         test_cmp_bin b.tar d4.zip
 198 '
 199
 200 test_expect_success \
 201     'git archive --list outside of a git repo' \
 202     'GIT_DIR=some/non-existing/directory git archive --list'
 203
 204 test_expect_success 'clients cannot access unreachable commits' '
 205         test_commit unreachable &&
 206         sha1=$(git rev-parse HEAD) &&
 207         git reset --hard HEAD^ &&
 208         git archive $sha1 >remote.tar &&
 209         test_must_fail git archive --remote=. $sha1 >remote.tar
 210 '
 211
 212 test_expect_success 'upload-archive can allow unreachable commits' '
 213         test_commit unreachable1 &&
 214         sha1=$(git rev-parse HEAD) &&
 215         git reset --hard HEAD^ &&
 216         git archive $sha1 >remote.tar &&
 217         test_config uploadarchive.allowUnreachable true &&
 218         git archive --remote=. $sha1 >remote.tar
 219 '
 220
 221 test_expect_success 'setup tar filters' '
 222         git config tar.tar.foo.command "tr ab ba" &&
 223         git config tar.bar.command "tr ab ba" &&
 224         git config tar.bar.remote true &&
 225         git config tar.invalid baz
 226 '
 227
 228 test_expect_success 'archive --list mentions user filter' '
 229         git archive --list >output &&
 230         grep "^tar\.foo\$" output &&
 231         grep "^bar\$" output
 232 '
 233
 234 test_expect_success 'archive --list shows only enabled remote filters' '
 235         git archive --list --remote=. >output &&
 236         ! grep "^tar\.foo\$" output &&
 237         grep "^bar\$" output
 238 '
 239
 240 test_expect_success 'invoke tar filter by format' '
 241         git archive --format=tar.foo HEAD >config.tar.foo &&
 242         tr ab ba <config.tar.foo >config.tar &&
 243         test_cmp_bin b.tar config.tar &&
 244         git archive --format=bar HEAD >config.bar &&
 245         tr ab ba <config.bar >config.tar &&
 246         test_cmp_bin b.tar config.tar
 247 '
 248
 249 test_expect_success 'invoke tar filter by extension' '
 250         git archive -o config-implicit.tar.foo HEAD &&
 251         test_cmp_bin config.tar.foo config-implicit.tar.foo &&
 252         git archive -o config-implicit.bar HEAD &&
 253         test_cmp_bin config.tar.foo config-implicit.bar
 254 '
 255
 256 test_expect_success 'default output format remains tar' '
 257         git archive -o config-implicit.baz HEAD &&
 258         test_cmp_bin b.tar config-implicit.baz
 259 '
 260
 261 test_expect_success 'extension matching requires dot' '
 262         git archive -o config-implicittar.foo HEAD &&
 263         test_cmp_bin b.tar config-implicittar.foo
 264 '
 265
 266 test_expect_success 'only enabled filters are available remotely' '
 267         test_must_fail git archive --remote=. --format=tar.foo HEAD \
 268                 >remote.tar.foo &&
 269         git archive --remote=. --format=bar >remote.bar HEAD &&
 270         test_cmp_bin remote.bar config.bar
 271 '
 272
 273 test_expect_success GZIP 'git archive --format=tgz' '
 274         git archive --format=tgz HEAD >j.tgz
 275 '
 276
 277 test_expect_success GZIP 'git archive --format=tar.gz' '
 278         git archive --format=tar.gz HEAD >j1.tar.gz &&
 279         test_cmp_bin j.tgz j1.tar.gz
 280 '
 281
 282 test_expect_success GZIP 'infer tgz from .tgz filename' '
 283         git archive --output=j2.tgz HEAD &&
 284         test_cmp_bin j.tgz j2.tgz
 285 '
 286
 287 test_expect_success GZIP 'infer tgz from .tar.gz filename' '
 288         git archive --output=j3.tar.gz HEAD &&
 289         test_cmp_bin j.tgz j3.tar.gz
 290 '
 291
 292 test_expect_success GZIP 'extract tgz file' '
 293         gzip -d -c <j.tgz >j.tar &&
 294         test_cmp_bin b.tar j.tar
 295 '
 296
 297 test_expect_success GZIP 'remote tar.gz is allowed by default' '
 298         git archive --remote=. --format=tar.gz HEAD >remote.tar.gz &&
 299         test_cmp_bin j.tgz remote.tar.gz
 300 '
 301
 302 test_expect_success GZIP 'remote tar.gz can be disabled' '
 303         git config tar.tar.gz.remote false &&
 304         test_must_fail git archive --remote=. --format=tar.gz HEAD \
 305                 >remote.tar.gz
 306 '
 307
 308 test_expect_success 'archive and :(glob)' '
 309         git archive -v HEAD -- ":(glob)**/sh" >/dev/null 2>actual &&
 310         cat >expect <<EOF &&
 311 a/
 312 a/bin/
 313 a/bin/sh
 314 EOF
 315         test_cmp expect actual
 316 '
 317
 318 test_expect_success 'catch non-matching pathspec' '
 319         test_must_fail git archive -v HEAD -- "*.abc" >/dev/null
 320 '
 321
 322 # Pull the size and date of each entry in a tarfile using the system tar.
 323 #
 324 # We'll pull out only the year from the date; that avoids any question of
 325 # timezones impacting the result (as long as we keep our test times away from a
 326 # year boundary; our reference times are all in August).
 327 #
 328 # The output of tar_info is expected to be "<size> <year>", both in decimal. It
 329 # ignores the return value of tar. We have to do this, because some of our test
 330 # input is only partial (the real data is 64GB in some cases).
 331 tar_info () {
 332         "$TAR" tvf "$1" |
 333         awk '{
 334                 split($4, date, "-")
 335                 print $3 " " date[1]
 336         }'
 337 }
 338
 339 # See if our system tar can handle a tar file with huge sizes and dates far in
 340 # the future, and that we can actually parse its output.
 341 #
 342 # The reference file was generated by GNU tar, and the magic time and size are
 343 # both octal 01000000000001, which overflows normal ustar fields.
 344 test_lazy_prereq TAR_HUGE '
 345         echo "68719476737 4147" >expect &&
 346         tar_info "$TEST_DIRECTORY"/t5000/huge-and-future.tar >actual &&
 347         test_cmp expect actual
 348 '
 349
 350 test_expect_success LONG_IS_64BIT 'set up repository with huge blob' '
 351         obj_d=19 &&
 352         obj_f=f9c8273ec45a8938e6999cb59b3ff66739902a &&
 353         obj=${obj_d}${obj_f} &&
 354         mkdir -p .git/objects/$obj_d &&
 355         cp "$TEST_DIRECTORY"/t5000/$obj .git/objects/$obj_d/$obj_f &&
 356         rm -f .git/index &&
 357         git update-index --add --cacheinfo 100644,$obj,huge &&
 358         git commit -m huge
 359 '
 360
 361 # We expect git to die with SIGPIPE here (otherwise we
 362 # would generate the whole 64GB).
 363 test_expect_success LONG_IS_64BIT 'generate tar with huge size' '
 364         {
 365                 git archive HEAD
 366                 echo $? >exit-code
 367         } | test_copy_bytes 4096 >huge.tar &&
 368         echo 141 >expect &&
 369         test_cmp expect exit-code
 370 '
 371
 372 test_expect_success TAR_HUGE,LONG_IS_64BIT 'system tar can read our huge size' '
 373         echo 68719476737 >expect &&
 374         tar_info huge.tar | cut -d" " -f1 >actual &&
 375         test_cmp expect actual
 376 '
 377
 378 test_expect_success LONG_IS_64BIT 'set up repository with far-future commit' '
 379         rm -f .git/index &&
 380         echo content >file &&
 381         git add file &&
 382         GIT_COMMITTER_DATE="@68719476737 +0000" \
 383                 git commit -m "tempori parendum"
 384 '
 385
 386 test_expect_success LONG_IS_64BIT 'generate tar with future mtime' '
 387         git archive HEAD >future.tar
 388 '
 389
 390 test_expect_success TAR_HUGE,LONG_IS_64BIT 'system tar can read our future mtime' '
 391         echo 4147 >expect &&
 392         tar_info future.tar | cut -d" " -f2 >actual &&
 393         test_cmp expect actual
 394 '
 395
 396 test_done