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-tool 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 'git archive --remote with configured remote' '
 183         git config remote.foo.url . &&
 184         (
 185                 cd a &&
 186                 git archive --remote=foo --output=../b5-nick.tar HEAD
 187         ) &&
 188         test_cmp_bin b.tar b5-nick.tar
 189 '
 190
 191 test_expect_success \
 192     'validate file modification time' \
 193     'mkdir extract &&
 194      "$TAR" xf b.tar -C extract a/a &&
 195      test-tool chmtime --get extract/a/a >b.mtime &&
 196      echo "1117231200" >expected.mtime &&
 197      test_cmp expected.mtime b.mtime'
 198
 199 test_expect_success \
 200     'git get-tar-commit-id' \
 201     'git get-tar-commit-id <b.tar >b.commitid &&
 202      test_cmp .git/$(git symbolic-ref HEAD) b.commitid'
 203
 204 test_expect_success 'git archive with --output, override inferred format' '
 205         git archive --format=tar --output=d4.zip HEAD &&
 206         test_cmp_bin b.tar d4.zip
 207 '
 208
 209 test_expect_success 'git archive --list outside of a git repo' '
 210         nongit git archive --list
 211 '
 212
 213 test_expect_success 'git archive --remote outside of a git repo' '
 214         git archive HEAD >expect.tar &&
 215         nongit git archive --remote="$PWD" HEAD >actual.tar &&
 216         test_cmp_bin expect.tar actual.tar
 217 '
 218
 219 test_expect_success 'clients cannot access unreachable commits' '
 220         test_commit unreachable &&
 221         sha1=$(git rev-parse HEAD) &&
 222         git reset --hard HEAD^ &&
 223         git archive $sha1 >remote.tar &&
 224         test_must_fail git archive --remote=. $sha1 >remote.tar
 225 '
 226
 227 test_expect_success 'upload-archive can allow unreachable commits' '
 228         test_commit unreachable1 &&
 229         sha1=$(git rev-parse HEAD) &&
 230         git reset --hard HEAD^ &&
 231         git archive $sha1 >remote.tar &&
 232         test_config uploadarchive.allowUnreachable true &&
 233         git archive --remote=. $sha1 >remote.tar
 234 '
 235
 236 test_expect_success 'setup tar filters' '
 237         git config tar.tar.foo.command "tr ab ba" &&
 238         git config tar.bar.command "tr ab ba" &&
 239         git config tar.bar.remote true &&
 240         git config tar.invalid baz
 241 '
 242
 243 test_expect_success 'archive --list mentions user filter' '
 244         git archive --list >output &&
 245         grep "^tar\.foo\$" output &&
 246         grep "^bar\$" output
 247 '
 248
 249 test_expect_success 'archive --list shows only enabled remote filters' '
 250         git archive --list --remote=. >output &&
 251         ! grep "^tar\.foo\$" output &&
 252         grep "^bar\$" output
 253 '
 254
 255 test_expect_success 'invoke tar filter by format' '
 256         git archive --format=tar.foo HEAD >config.tar.foo &&
 257         tr ab ba <config.tar.foo >config.tar &&
 258         test_cmp_bin b.tar config.tar &&
 259         git archive --format=bar HEAD >config.bar &&
 260         tr ab ba <config.bar >config.tar &&
 261         test_cmp_bin b.tar config.tar
 262 '
 263
 264 test_expect_success 'invoke tar filter by extension' '
 265         git archive -o config-implicit.tar.foo HEAD &&
 266         test_cmp_bin config.tar.foo config-implicit.tar.foo &&
 267         git archive -o config-implicit.bar HEAD &&
 268         test_cmp_bin config.tar.foo config-implicit.bar
 269 '
 270
 271 test_expect_success 'default output format remains tar' '
 272         git archive -o config-implicit.baz HEAD &&
 273         test_cmp_bin b.tar config-implicit.baz
 274 '
 275
 276 test_expect_success 'extension matching requires dot' '
 277         git archive -o config-implicittar.foo HEAD &&
 278         test_cmp_bin b.tar config-implicittar.foo
 279 '
 280
 281 test_expect_success 'only enabled filters are available remotely' '
 282         test_must_fail git archive --remote=. --format=tar.foo HEAD \
 283                 >remote.tar.foo &&
 284         git archive --remote=. --format=bar >remote.bar HEAD &&
 285         test_cmp_bin remote.bar config.bar
 286 '
 287
 288 test_expect_success GZIP 'git archive --format=tgz' '
 289         git archive --format=tgz HEAD >j.tgz
 290 '
 291
 292 test_expect_success GZIP 'git archive --format=tar.gz' '
 293         git archive --format=tar.gz HEAD >j1.tar.gz &&
 294         test_cmp_bin j.tgz j1.tar.gz
 295 '
 296
 297 test_expect_success GZIP 'infer tgz from .tgz filename' '
 298         git archive --output=j2.tgz HEAD &&
 299         test_cmp_bin j.tgz j2.tgz
 300 '
 301
 302 test_expect_success GZIP 'infer tgz from .tar.gz filename' '
 303         git archive --output=j3.tar.gz HEAD &&
 304         test_cmp_bin j.tgz j3.tar.gz
 305 '
 306
 307 test_expect_success GZIP 'extract tgz file' '
 308         gzip -d -c <j.tgz >j.tar &&
 309         test_cmp_bin b.tar j.tar
 310 '
 311
 312 test_expect_success GZIP 'remote tar.gz is allowed by default' '
 313         git archive --remote=. --format=tar.gz HEAD >remote.tar.gz &&
 314         test_cmp_bin j.tgz remote.tar.gz
 315 '
 316
 317 test_expect_success GZIP 'remote tar.gz can be disabled' '
 318         git config tar.tar.gz.remote false &&
 319         test_must_fail git archive --remote=. --format=tar.gz HEAD \
 320                 >remote.tar.gz
 321 '
 322
 323 test_expect_success 'archive and :(glob)' '
 324         git archive -v HEAD -- ":(glob)**/sh" >/dev/null 2>actual &&
 325         cat >expect <<EOF &&
 326 a/
 327 a/bin/
 328 a/bin/sh
 329 EOF
 330         test_cmp expect actual
 331 '
 332
 333 test_expect_success 'catch non-matching pathspec' '
 334         test_must_fail git archive -v HEAD -- "*.abc" >/dev/null
 335 '
 336
 337 # Pull the size and date of each entry in a tarfile using the system tar.
 338 #
 339 # We'll pull out only the year from the date; that avoids any question of
 340 # timezones impacting the result (as long as we keep our test times away from a
 341 # year boundary; our reference times are all in August).
 342 #
 343 # The output of tar_info is expected to be "<size> <year>", both in decimal. It
 344 # ignores the return value of tar. We have to do this, because some of our test
 345 # input is only partial (the real data is 64GB in some cases).
 346 tar_info () {
 347         "$TAR" tvf "$1" |
 348         awk '{
 349                 split($4, date, "-")
 350                 print $3 " " date[1]
 351         }'
 352 }
 353
 354 # See if our system tar can handle a tar file with huge sizes and dates far in
 355 # the future, and that we can actually parse its output.
 356 #
 357 # The reference file was generated by GNU tar, and the magic time and size are
 358 # both octal 01000000000001, which overflows normal ustar fields.
 359 test_lazy_prereq TAR_HUGE '
 360         echo "68719476737 4147" >expect &&
 361         tar_info "$TEST_DIRECTORY"/t5000/huge-and-future.tar >actual &&
 362         test_cmp expect actual
 363 '
 364
 365 test_expect_success LONG_IS_64BIT 'set up repository with huge blob' '
 366         obj_d=19 &&
 367         obj_f=f9c8273ec45a8938e6999cb59b3ff66739902a &&
 368         obj=${obj_d}${obj_f} &&
 369         mkdir -p .git/objects/$obj_d &&
 370         cp "$TEST_DIRECTORY"/t5000/$obj .git/objects/$obj_d/$obj_f &&
 371         rm -f .git/index &&
 372         git update-index --add --cacheinfo 100644,$obj,huge &&
 373         git commit -m huge
 374 '
 375
 376 # We expect git to die with SIGPIPE here (otherwise we
 377 # would generate the whole 64GB).
 378 test_expect_success LONG_IS_64BIT 'generate tar with huge size' '
 379         {
 380                 git archive HEAD
 381                 echo $? >exit-code
 382         } | test_copy_bytes 4096 >huge.tar &&
 383         echo 141 >expect &&
 384         test_cmp expect exit-code
 385 '
 386
 387 test_expect_success TAR_HUGE,LONG_IS_64BIT 'system tar can read our huge size' '
 388         echo 68719476737 >expect &&
 389         tar_info huge.tar | cut -d" " -f1 >actual &&
 390         test_cmp expect actual
 391 '
 392
 393 test_expect_success TIME_IS_64BIT 'set up repository with far-future commit' '
 394         rm -f .git/index &&
 395         echo content >file &&
 396         git add file &&
 397         GIT_COMMITTER_DATE="@68719476737 +0000" \
 398                 git commit -m "tempori parendum"
 399 '
 400
 401 test_expect_success TIME_IS_64BIT 'generate tar with future mtime' '
 402         git archive HEAD >future.tar
 403 '
 404
 405 test_expect_success TAR_HUGE,TIME_IS_64BIT,TIME_T_IS_64BIT 'system tar can read our future mtime' '
 406         echo 4147 >expect &&
 407         tar_info future.tar | cut -d" " -f2 >actual &&
 408         test_cmp expect actual
 409 '
 410
 411 test_done