| 1 | #!/bin/sh |
| 2 | |
| 3 | test_description='test corner cases of git-archive' |
| 4 | |
| 5 | . ./test-lib.sh |
| 6 | |
| 7 | if ! test_have_prereq PERL_TEST_HELPERS |
| 8 | then |
| 9 | skip_all='skipping archive corner cases tests; Perl not available' |
| 10 | test_done |
| 11 | fi |
| 12 | |
| 13 | # the 10knuls.tar file is used to test for an empty git generated tar |
| 14 | # without having to invoke tar because an otherwise valid empty GNU tar |
| 15 | # will be considered broken by {Open,Net}BSD tar |
| 16 | test_expect_success 'create commit with empty tree and fake empty tar' ' |
| 17 | git commit --allow-empty -m foo && |
| 18 | perl -e "print \"\\0\" x 10240" >10knuls.tar |
| 19 | ' |
| 20 | |
| 21 | # Make a dir and clean it up afterwards |
| 22 | make_dir() { |
| 23 | mkdir "$1" && |
| 24 | test_when_finished "rm -rf '$1'" |
| 25 | } |
| 26 | |
| 27 | # Check that the dir given in "$1" contains exactly the |
| 28 | # set of paths given as arguments. |
| 29 | check_dir() { |
| 30 | dir=$1; shift |
| 31 | { |
| 32 | echo "$dir" && |
| 33 | for i in "$@"; do |
| 34 | echo "$dir/$i" |
| 35 | done |
| 36 | } | sort >expect && |
| 37 | find "$dir" ! -name pax_global_header -print | sort >actual && |
| 38 | test_cmp expect actual |
| 39 | } |
| 40 | |
| 41 | test_lazy_prereq UNZIP_ZIP64_SUPPORT ' |
| 42 | "$GIT_UNZIP" -v | grep ZIP64_SUPPORT |
| 43 | ' |
| 44 | |
| 45 | # bsdtar/libarchive versions before 3.1.3 consider a tar file with a |
| 46 | # global pax header that is not followed by a file record as corrupt. |
| 47 | if "$TAR" tf "$TEST_DIRECTORY"/t5004/empty-with-pax-header.tar >/dev/null 2>&1 |
| 48 | then |
| 49 | test_set_prereq HEADER_ONLY_TAR_OK |
| 50 | fi |
| 51 | |
| 52 | test_expect_success HEADER_ONLY_TAR_OK 'tar archive of commit with empty tree' ' |
| 53 | git archive --format=tar HEAD >empty-with-pax-header.tar && |
| 54 | make_dir extract && |
| 55 | "$TAR" xf empty-with-pax-header.tar -C extract && |
| 56 | check_dir extract |
| 57 | ' |
| 58 | |
| 59 | test_expect_success 'tar archive of empty tree is empty' ' |
| 60 | git archive --format=tar HEAD: >empty.tar && |
| 61 | test_cmp_bin 10knuls.tar empty.tar |
| 62 | ' |
| 63 | |
| 64 | test_expect_success 'tar archive of empty tree with prefix' ' |
| 65 | git archive --format=tar --prefix=foo/ HEAD >prefix.tar && |
| 66 | make_dir extract && |
| 67 | "$TAR" xf prefix.tar -C extract && |
| 68 | check_dir extract foo |
| 69 | ' |
| 70 | |
| 71 | test_expect_success UNZIP 'zip archive of empty tree is empty' ' |
| 72 | # Detect the exit code produced when our particular flavor of unzip |
| 73 | # sees an empty archive. Infozip will generate a warning and exit with |
| 74 | # code 1. But in the name of sanity, we do not expect other unzip |
| 75 | # implementations to do the same thing (it would be perfectly |
| 76 | # reasonable to exit 0, for example). |
| 77 | # |
| 78 | # This makes our test less rigorous on some platforms (unzip may not |
| 79 | # handle the empty repo at all, making our later check of its exit code |
| 80 | # a no-op). But we cannot do anything reasonable except skip the test |
| 81 | # on such platforms anyway, and this is the moral equivalent. |
| 82 | { |
| 83 | "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/empty.zip |
| 84 | expect_code=$? |
| 85 | } && |
| 86 | |
| 87 | git archive --format=zip HEAD >empty.zip && |
| 88 | make_dir extract && |
| 89 | ( |
| 90 | cd extract && |
| 91 | test_expect_code $expect_code "$GIT_UNZIP" ../empty.zip |
| 92 | ) && |
| 93 | check_dir extract |
| 94 | ' |
| 95 | |
| 96 | test_expect_success UNZIP 'zip archive of empty tree with prefix' ' |
| 97 | # We do not have to play exit-code tricks here, because our |
| 98 | # result should not be empty; it has a directory in it. |
| 99 | git archive --format=zip --prefix=foo/ HEAD >prefix.zip && |
| 100 | make_dir extract && |
| 101 | ( |
| 102 | cd extract && |
| 103 | "$GIT_UNZIP" ../prefix.zip |
| 104 | ) && |
| 105 | check_dir extract foo |
| 106 | ' |
| 107 | |
| 108 | test_expect_success 'archive complains about pathspec on empty tree' ' |
| 109 | test_must_fail git archive --format=tar HEAD -- foo >/dev/null |
| 110 | ' |
| 111 | |
| 112 | test_expect_success 'create a commit with an empty subtree' ' |
| 113 | empty_tree=$(git hash-object -t tree /dev/null) && |
| 114 | root_tree=$(printf "040000 tree $empty_tree\tsub\n" | git mktree) |
| 115 | ' |
| 116 | |
| 117 | test_expect_success 'archive empty subtree with no pathspec' ' |
| 118 | git archive --format=tar $root_tree >subtree-all.tar && |
| 119 | test_cmp_bin 10knuls.tar subtree-all.tar |
| 120 | ' |
| 121 | |
| 122 | test_expect_success 'archive empty subtree by direct pathspec' ' |
| 123 | git archive --format=tar $root_tree -- sub >subtree-path.tar && |
| 124 | test_cmp_bin 10knuls.tar subtree-path.tar |
| 125 | ' |
| 126 | |
| 127 | ZIPINFO=zipinfo |
| 128 | |
| 129 | test_lazy_prereq ZIPINFO ' |
| 130 | n=$("$ZIPINFO" "$TEST_DIRECTORY"/t5004/empty.zip | sed -n "2s/.* //p") |
| 131 | test "x$n" = "x0" |
| 132 | ' |
| 133 | |
| 134 | test_expect_success ZIPINFO 'zip archive with many entries' ' |
| 135 | # add a directory with 256 files |
| 136 | mkdir 00 && |
| 137 | for a in 0 1 2 3 4 5 6 7 8 9 a b c d e f |
| 138 | do |
| 139 | for b in 0 1 2 3 4 5 6 7 8 9 a b c d e f |
| 140 | do |
| 141 | : >00/$a$b || return 1 |
| 142 | done |
| 143 | done && |
| 144 | git add 00 && |
| 145 | git commit -m "256 files in 1 directory" && |
| 146 | |
| 147 | # duplicate it to get 65536 files in 256 directories |
| 148 | subtree=$(git write-tree --prefix=00/) && |
| 149 | for c in 0 1 2 3 4 5 6 7 8 9 a b c d e f |
| 150 | do |
| 151 | for d in 0 1 2 3 4 5 6 7 8 9 a b c d e f |
| 152 | do |
| 153 | echo "040000 tree $subtree $c$d" || return 1 |
| 154 | done |
| 155 | done >tree && |
| 156 | tree=$(git mktree <tree) && |
| 157 | |
| 158 | # zip them |
| 159 | git archive -o many.zip $tree && |
| 160 | |
| 161 | # check the number of entries in the ZIP file directory |
| 162 | expr 65536 + 256 >expect && |
| 163 | "$ZIPINFO" -h many.zip >zipinfo && |
| 164 | sed -n "2s/.* //p" <zipinfo >actual && |
| 165 | test_cmp expect actual |
| 166 | ' |
| 167 | |
| 168 | test_expect_success EXPENSIVE,UNZIP,UNZIP_ZIP64_SUPPORT \ |
| 169 | 'zip archive bigger than 4GB' ' |
| 170 | # build string containing 65536 characters |
| 171 | s=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef && |
| 172 | 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 && |
| 173 | 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 && |
| 174 | |
| 175 | # create blob with a length of 65536 + 1 bytes |
| 176 | blob=$(echo $s | git hash-object -w --stdin) && |
| 177 | |
| 178 | # create tree containing 65500 entries of that blob |
| 179 | tree=$(test_seq -f "100644 blob $blob\t%d" 1 65500 | git mktree) && |
| 180 | |
| 181 | # zip it, creating an archive a bit bigger than 4GB |
| 182 | git archive -0 -o many-big.zip $tree && |
| 183 | |
| 184 | "$GIT_UNZIP" -t many-big.zip 9999 65500 && |
| 185 | "$GIT_UNZIP" -t many-big.zip |
| 186 | ' |
| 187 | |
| 188 | test_expect_success EXPENSIVE,LONG_IS_64BIT,UNZIP,UNZIP_ZIP64_SUPPORT,ZIPINFO \ |
| 189 | 'zip archive with files bigger than 4GB' ' |
| 190 | # Pack created with: |
| 191 | # dd if=/dev/zero of=file bs=1M count=4100 && git hash-object -w file |
| 192 | mkdir -p .git/objects/pack && |
| 193 | ( |
| 194 | cd .git/objects/pack && |
| 195 | "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/big-pack.zip |
| 196 | ) && |
| 197 | blob=754a93d6fada4c6873360e6cb4b209132271ab0e && |
| 198 | size=$(expr 4100 "*" 1024 "*" 1024) && |
| 199 | |
| 200 | # create a tree containing the file |
| 201 | tree=$(echo "100644 blob $blob big-file" | git mktree) && |
| 202 | |
| 203 | # zip it, creating an archive with a file bigger than 4GB |
| 204 | git archive -o big.zip $tree && |
| 205 | |
| 206 | "$GIT_UNZIP" -t big.zip && |
| 207 | "$ZIPINFO" big.zip >big.lst && |
| 208 | grep $size big.lst |
| 209 | ' |
| 210 | |
| 211 | build_tree() { |
| 212 | perl -e ' |
| 213 | my $hash = $ARGV[0]; |
| 214 | foreach my $order (2..6) { |
| 215 | $first = 10 ** $order; |
| 216 | foreach my $i (-13..-9) { |
| 217 | my $name = "a" x ($first + $i); |
| 218 | print "100644 blob $hash\t$name\n" |
| 219 | } |
| 220 | } |
| 221 | ' "$1" |
| 222 | } |
| 223 | |
| 224 | test_expect_success 'tar archive with long paths' ' |
| 225 | blob=$(echo foo | git hash-object -w --stdin) && |
| 226 | tree=$(build_tree $blob | git mktree) && |
| 227 | git archive -o long_paths.tar $tree |
| 228 | ' |
| 229 | |
| 230 | test_done |