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1#!/bin/sh
2
3test_description='test corner cases of git-archive'
4
5. ./test-lib.sh
6
7if ! test_have_prereq PERL_TEST_HELPERS
8then
9 skip_all='skipping archive corner cases tests; Perl not available'
10 test_done
11fi
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
16test_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
22make_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.
29check_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
41test_lazy_prereq UNZIP_ZIP64_SUPPORT '
42 "$GIT_UNZIP" -v | grep ZIP64_SUPPORT
43'
44
45# bsdtar/libarchive versions before 3.1.3 consider a tar file with a
46# global pax header that is not followed by a file record as corrupt.
47if "$TAR" tf "$TEST_DIRECTORY"/t5004/empty-with-pax-header.tar >/dev/null 2>&1
48then
49 test_set_prereq HEADER_ONLY_TAR_OK
50fi
51
52test_expect_success HEADER_ONLY_TAR_OK 'tar archive of commit with empty tree' '
53 git archive --format=tar HEAD >empty-with-pax-header.tar &&
54 make_dir extract &&
55 "$TAR" xf empty-with-pax-header.tar -C extract &&
56 check_dir extract
57'
58
59test_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
64test_expect_success 'tar archive of empty tree with prefix' '
65 git archive --format=tar --prefix=foo/ HEAD >prefix.tar &&
66 make_dir extract &&
67 "$TAR" xf prefix.tar -C extract &&
68 check_dir extract foo
69'
70
71test_expect_success UNZIP 'zip archive of empty tree is empty' '
72 # Detect the exit code produced when our particular flavor of unzip
73 # sees an empty archive. Infozip will generate a warning and exit with
74 # code 1. But in the name of sanity, we do not expect other unzip
75 # implementations to do the same thing (it would be perfectly
76 # reasonable to exit 0, for example).
77 #
78 # This makes our test less rigorous on some platforms (unzip may not
79 # handle the empty repo at all, making our later check of its exit code
80 # a no-op). But we cannot do anything reasonable except skip the test
81 # on such platforms anyway, and this is the moral equivalent.
82 {
83 "$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
96test_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 "$GIT_UNZIP" ../prefix.zip
104 ) &&
105 check_dir extract foo
106'
107
108test_expect_success 'archive complains about pathspec on empty tree' '
109 test_must_fail git archive --format=tar HEAD -- foo >/dev/null
110'
111
112test_expect_success 'create a commit with an empty subtree' '
113 empty_tree=$(git hash-object -t tree /dev/null) &&
114 root_tree=$(printf "040000 tree $empty_tree\tsub\n" | git mktree)
115'
116
117test_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
122test_expect_success 'archive empty subtree by direct pathspec' '
123 git archive --format=tar $root_tree -- sub >subtree-path.tar &&
124 test_cmp_bin 10knuls.tar subtree-path.tar
125'
126
127ZIPINFO=zipinfo
128
129test_lazy_prereq ZIPINFO '
130 n=$("$ZIPINFO" "$TEST_DIRECTORY"/t5004/empty.zip | sed -n "2s/.* //p")
131 test "x$n" = "x0"
132'
133
134test_expect_success ZIPINFO 'zip archive with many entries' '
135 # add a directory with 256 files
136 mkdir 00 &&
137 for a in 0 1 2 3 4 5 6 7 8 9 a b c d e f
138 do
139 for b in 0 1 2 3 4 5 6 7 8 9 a b c d e f
140 do
141 : >00/$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
168test_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 test_seq -f "100644 blob $blob\t%d" 1 65500 >tree &&
180 tree=$(git mktree <tree) &&
181
182 # zip it, creating an archive a bit bigger than 4GB
183 git archive -0 -o many-big.zip $tree &&
184
185 "$GIT_UNZIP" -t many-big.zip 9999 65500 &&
186 "$GIT_UNZIP" -t many-big.zip
187'
188
189test_expect_success EXPENSIVE,LONG_IS_64BIT,UNZIP,UNZIP_ZIP64_SUPPORT,ZIPINFO \
190 'zip archive with files bigger than 4GB' '
191 # Pack created with:
192 # dd if=/dev/zero of=file bs=1M count=4100 && git hash-object -w file
193 mkdir -p .git/objects/pack &&
194 (
195 cd .git/objects/pack &&
196 "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/big-pack.zip
197 ) &&
198 blob=754a93d6fada4c6873360e6cb4b209132271ab0e &&
199 size=$(expr 4100 "*" 1024 "*" 1024) &&
200
201 # create a tree containing the file
202 tree=$(echo "100644 blob $blob big-file" | git mktree) &&
203
204 # zip it, creating an archive with a file bigger than 4GB
205 git archive -o big.zip $tree &&
206
207 "$GIT_UNZIP" -t big.zip &&
208 "$ZIPINFO" big.zip >big.lst &&
209 grep $size big.lst
210'
211
212build_tree() {
213 perl -e '
214 my $hash = $ARGV[0];
215 foreach my $order (2..6) {
216 $first = 10 ** $order;
217 foreach my $i (-13..-9) {
218 my $name = "a" x ($first + $i);
219 print "100644 blob $hash\t$name\n"
220 }
221 }
222 ' "$1"
223}
224
225test_expect_success 'tar archive with long paths' '
226 blob=$(echo foo | git hash-object -w --stdin) &&
227 tree=$(build_tree $blob | git mktree) &&
228 git archive -o long_paths.tar $tree
229'
230
231test_done