Andrew's git / gitweb.git / t/t5004-archive-corner-cases.sh
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t / t5004-archive-corner-cases.shon commit clone: better handle symlinked files at .git/objects/ (36596fd)
   1#!/bin/sh
   2
   3test_description='test corner cases of git-archive'
   4. ./test-lib.sh
   5
   6# the 10knuls.tar file is used to test for an empty git generated tar
   7# without having to invoke tar because an otherwise valid empty GNU tar
   8# will be considered broken by {Open,Net}BSD tar
   9test_expect_success 'create commit with empty tree and fake empty tar' '
  10        git commit --allow-empty -m foo &&
  11        perl -e "print \"\\0\" x 10240" >10knuls.tar
  12'
  13
  14# Make a dir and clean it up afterwards
  15make_dir() {
  16        mkdir "$1" &&
  17        test_when_finished "rm -rf '$1'"
  18}
  19
  20# Check that the dir given in "$1" contains exactly the
  21# set of paths given as arguments.
  22check_dir() {
  23        dir=$1; shift
  24        {
  25                echo "$dir" &&
  26                for i in "$@"; do
  27                        echo "$dir/$i"
  28                done
  29        } | sort >expect &&
  30        find "$dir" ! -name pax_global_header -print | sort >actual &&
  31        test_cmp expect actual
  32}
  33
  34test_lazy_prereq UNZIP_ZIP64_SUPPORT '
  35        "$GIT_UNZIP" -v | grep ZIP64_SUPPORT
  36'
  37
  38# bsdtar/libarchive versions before 3.1.3 consider a tar file with a
  39# global pax header that is not followed by a file record as corrupt.
  40if "$TAR" tf "$TEST_DIRECTORY"/t5004/empty-with-pax-header.tar >/dev/null 2>&1
  41then
  42        test_set_prereq HEADER_ONLY_TAR_OK
  43fi
  44
  45test_expect_success HEADER_ONLY_TAR_OK 'tar archive of commit with empty tree' '
  46        git archive --format=tar HEAD >empty-with-pax-header.tar &&
  47        make_dir extract &&
  48        "$TAR" xf empty-with-pax-header.tar -C extract &&
  49        check_dir extract
  50'
  51
  52test_expect_success 'tar archive of empty tree is empty' '
  53        git archive --format=tar HEAD: >empty.tar &&
  54        test_cmp_bin 10knuls.tar empty.tar
  55'
  56
  57test_expect_success 'tar archive of empty tree with prefix' '
  58        git archive --format=tar --prefix=foo/ HEAD >prefix.tar &&
  59        make_dir extract &&
  60        "$TAR" xf prefix.tar -C extract &&
  61        check_dir extract foo
  62'
  63
  64test_expect_success UNZIP 'zip archive of empty tree is empty' '
  65        # Detect the exit code produced when our particular flavor of unzip
  66        # sees an empty archive. Infozip will generate a warning and exit with
  67        # code 1. But in the name of sanity, we do not expect other unzip
  68        # implementations to do the same thing (it would be perfectly
  69        # reasonable to exit 0, for example).
  70        #
  71        # This makes our test less rigorous on some platforms (unzip may not
  72        # handle the empty repo at all, making our later check of its exit code
  73        # a no-op). But we cannot do anything reasonable except skip the test
  74        # on such platforms anyway, and this is the moral equivalent.
  75        {
  76                "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/empty.zip
  77                expect_code=$?
  78        } &&
  79
  80        git archive --format=zip HEAD >empty.zip &&
  81        make_dir extract &&
  82        (
  83                cd extract &&
  84                test_expect_code $expect_code "$GIT_UNZIP" ../empty.zip
  85        ) &&
  86        check_dir extract
  87'
  88
  89test_expect_success UNZIP 'zip archive of empty tree with prefix' '
  90        # We do not have to play exit-code tricks here, because our
  91        # result should not be empty; it has a directory in it.
  92        git archive --format=zip --prefix=foo/ HEAD >prefix.zip &&
  93        make_dir extract &&
  94        (
  95                cd extract &&
  96                "$GIT_UNZIP" ../prefix.zip
  97        ) &&
  98        check_dir extract foo
  99'
 100
 101test_expect_success 'archive complains about pathspec on empty tree' '
 102        test_must_fail git archive --format=tar HEAD -- foo >/dev/null
 103'
 104
 105test_expect_success 'create a commit with an empty subtree' '
 106        empty_tree=$(git hash-object -t tree /dev/null) &&
 107        root_tree=$(printf "040000 tree $empty_tree\tsub\n" | git mktree)
 108'
 109
 110test_expect_success 'archive empty subtree with no pathspec' '
 111        git archive --format=tar $root_tree >subtree-all.tar &&
 112        test_cmp_bin 10knuls.tar subtree-all.tar
 113'
 114
 115test_expect_success 'archive empty subtree by direct pathspec' '
 116        git archive --format=tar $root_tree -- sub >subtree-path.tar &&
 117        test_cmp_bin 10knuls.tar subtree-path.tar
 118'
 119
 120ZIPINFO=zipinfo
 121
 122test_lazy_prereq ZIPINFO '
 123        n=$("$ZIPINFO" "$TEST_DIRECTORY"/t5004/empty.zip | sed -n "2s/.* //p")
 124        test "x$n" = "x0"
 125'
 126
 127test_expect_success ZIPINFO 'zip archive with many entries' '
 128        # add a directory with 256 files
 129        mkdir 00 &&
 130        for a in 0 1 2 3 4 5 6 7 8 9 a b c d e f
 131        do
 132                for b in 0 1 2 3 4 5 6 7 8 9 a b c d e f
 133                do
 134                        : >00/$a$b
 135                done
 136        done &&
 137        git add 00 &&
 138        git commit -m "256 files in 1 directory" &&
 139
 140        # duplicate it to get 65536 files in 256 directories
 141        subtree=$(git write-tree --prefix=00/) &&
 142        for c in 0 1 2 3 4 5 6 7 8 9 a b c d e f
 143        do
 144                for d in 0 1 2 3 4 5 6 7 8 9 a b c d e f
 145                do
 146                        echo "040000 tree $subtree      $c$d"
 147                done
 148        done >tree &&
 149        tree=$(git mktree <tree) &&
 150
 151        # zip them
 152        git archive -o many.zip $tree &&
 153
 154        # check the number of entries in the ZIP file directory
 155        expr 65536 + 256 >expect &&
 156        "$ZIPINFO" many.zip | head -2 | sed -n "2s/.* //p" >actual &&
 157        test_cmp expect actual
 158'
 159
 160test_expect_success EXPENSIVE,UNZIP,UNZIP_ZIP64_SUPPORT \
 161        'zip archive bigger than 4GB' '
 162        # build string containing 65536 characters
 163        s=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef &&
 164        s=$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s &&
 165        s=$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s &&
 166
 167        # create blob with a length of 65536 + 1 bytes
 168        blob=$(echo $s | git hash-object -w --stdin) &&
 169
 170        # create tree containing 65500 entries of that blob
 171        for i in $(test_seq 1 65500)
 172        do
 173                echo "100644 blob $blob $i"
 174        done >tree &&
 175        tree=$(git mktree <tree) &&
 176
 177        # zip it, creating an archive a bit bigger than 4GB
 178        git archive -0 -o many-big.zip $tree &&
 179
 180        "$GIT_UNZIP" -t many-big.zip 9999 65500 &&
 181        "$GIT_UNZIP" -t many-big.zip
 182'
 183
 184test_expect_success EXPENSIVE,LONG_IS_64BIT,UNZIP,UNZIP_ZIP64_SUPPORT,ZIPINFO \
 185        'zip archive with files bigger than 4GB' '
 186        # Pack created with:
 187        #   dd if=/dev/zero of=file bs=1M count=4100 && git hash-object -w file
 188        mkdir -p .git/objects/pack &&
 189        (
 190                cd .git/objects/pack &&
 191                "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/big-pack.zip
 192        ) &&
 193        blob=754a93d6fada4c6873360e6cb4b209132271ab0e &&
 194        size=$(expr 4100 "*" 1024 "*" 1024) &&
 195
 196        # create a tree containing the file
 197        tree=$(echo "100644 blob $blob  big-file" | git mktree) &&
 198
 199        # zip it, creating an archive with a file bigger than 4GB
 200        git archive -o big.zip $tree &&
 201
 202        "$GIT_UNZIP" -t big.zip &&
 203        "$ZIPINFO" big.zip >big.lst &&
 204        grep $size big.lst
 205'
 206
 207test_done