Merge branch 'maint'
[git] / t / t5300-pack-object.sh
1 #!/bin/sh
2 #
3 # Copyright (c) 2005 Junio C Hamano
4 #
5
6 test_description='git-pack-object
7
8 '
9 . ./test-lib.sh
10
11 TRASH=`pwd`
12
13 test_expect_success \
14     'setup' \
15     'rm -f .git/index*
16      for i in a b c
17      do
18              dd if=/dev/zero bs=4k count=1 | tr "\\0" $i >$i &&
19              git update-index --add $i || return 1
20      done &&
21      cat c >d && echo foo >>d && git update-index --add d &&
22      tree=`git write-tree` &&
23      commit=`git commit-tree $tree </dev/null` && {
24          echo $tree &&
25          echo $commit &&
26          git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\)       .*/\\1/"
27      } >obj-list && {
28          git diff-tree --root -p $commit &&
29          while read object
30          do
31             t=`git cat-file -t $object` &&
32             git cat-file $t $object || return 1
33          done <obj-list
34      } >expect'
35
36 test_expect_success \
37     'pack without delta' \
38     'packname_1=$(git pack-objects --window=0 test-1 <obj-list)'
39
40 rm -fr .git2
41 mkdir .git2
42
43 test_expect_success \
44     'unpack without delta' \
45     "GIT_OBJECT_DIRECTORY=.git2/objects &&
46      export GIT_OBJECT_DIRECTORY &&
47      git init &&
48      git unpack-objects -n <test-1-${packname_1}.pack &&
49      git unpack-objects <test-1-${packname_1}.pack"
50
51 unset GIT_OBJECT_DIRECTORY
52 cd "$TRASH/.git2"
53
54 test_expect_success \
55     'check unpack without delta' \
56     '(cd ../.git && find objects -type f -print) |
57      while read path
58      do
59          cmp $path ../.git/$path || {
60              echo $path differs.
61              return 1
62          }
63      done'
64 cd "$TRASH"
65
66 test_expect_success \
67     'pack with REF_DELTA' \
68     'pwd &&
69      packname_2=$(git pack-objects test-2 <obj-list)'
70
71 rm -fr .git2
72 mkdir .git2
73
74 test_expect_success \
75     'unpack with REF_DELTA' \
76     'GIT_OBJECT_DIRECTORY=.git2/objects &&
77      export GIT_OBJECT_DIRECTORY &&
78      git init &&
79      git unpack-objects -n <test-2-${packname_2}.pack &&
80      git unpack-objects <test-2-${packname_2}.pack'
81
82 unset GIT_OBJECT_DIRECTORY
83 cd "$TRASH/.git2"
84 test_expect_success \
85     'check unpack with REF_DELTA' \
86     '(cd ../.git && find objects -type f -print) |
87      while read path
88      do
89          cmp $path ../.git/$path || {
90              echo $path differs.
91              return 1
92          }
93      done'
94 cd "$TRASH"
95
96 test_expect_success \
97     'pack with OFS_DELTA' \
98     'pwd &&
99      packname_3=$(git pack-objects --delta-base-offset test-3 <obj-list)'
100
101 rm -fr .git2
102 mkdir .git2
103
104 test_expect_success \
105     'unpack with OFS_DELTA' \
106     'GIT_OBJECT_DIRECTORY=.git2/objects &&
107      export GIT_OBJECT_DIRECTORY &&
108      git init &&
109      git unpack-objects -n <test-3-${packname_3}.pack &&
110      git unpack-objects <test-3-${packname_3}.pack'
111
112 unset GIT_OBJECT_DIRECTORY
113 cd "$TRASH/.git2"
114 test_expect_success \
115     'check unpack with OFS_DELTA' \
116     '(cd ../.git && find objects -type f -print) |
117      while read path
118      do
119          cmp $path ../.git/$path || {
120              echo $path differs.
121              return 1
122          }
123      done'
124 cd "$TRASH"
125
126 test_expect_success 'compare delta flavors' '
127         perl -e '\''
128                 defined($_ = -s $_) or die for @ARGV;
129                 exit 1 if $ARGV[0] <= $ARGV[1];
130         '\'' test-2-$packname_2.pack test-3-$packname_3.pack
131 '
132
133 rm -fr .git2
134 mkdir .git2
135
136 test_expect_success \
137     'use packed objects' \
138     'GIT_OBJECT_DIRECTORY=.git2/objects &&
139      export GIT_OBJECT_DIRECTORY &&
140      git init &&
141      cp test-1-${packname_1}.pack test-1-${packname_1}.idx .git2/objects/pack && {
142          git diff-tree --root -p $commit &&
143          while read object
144          do
145             t=`git cat-file -t $object` &&
146             git cat-file $t $object || return 1
147          done <obj-list
148     } >current &&
149     diff expect current'
150
151 test_expect_success \
152     'use packed deltified (REF_DELTA) objects' \
153     'GIT_OBJECT_DIRECTORY=.git2/objects &&
154      export GIT_OBJECT_DIRECTORY &&
155      rm -f .git2/objects/pack/test-* &&
156      cp test-2-${packname_2}.pack test-2-${packname_2}.idx .git2/objects/pack && {
157          git diff-tree --root -p $commit &&
158          while read object
159          do
160             t=`git cat-file -t $object` &&
161             git cat-file $t $object || return 1
162          done <obj-list
163     } >current &&
164     diff expect current'
165
166 test_expect_success \
167     'use packed deltified (OFS_DELTA) objects' \
168     'GIT_OBJECT_DIRECTORY=.git2/objects &&
169      export GIT_OBJECT_DIRECTORY &&
170      rm -f .git2/objects/pack/test-* &&
171      cp test-3-${packname_3}.pack test-3-${packname_3}.idx .git2/objects/pack && {
172          git diff-tree --root -p $commit &&
173          while read object
174          do
175             t=`git cat-file -t $object` &&
176             git cat-file $t $object || return 1
177          done <obj-list
178     } >current &&
179     diff expect current'
180
181 unset GIT_OBJECT_DIRECTORY
182
183 test_expect_success \
184     'verify pack' \
185     'git verify-pack    test-1-${packname_1}.idx \
186                         test-2-${packname_2}.idx \
187                         test-3-${packname_3}.idx'
188
189 test_expect_success \
190     'corrupt a pack and see if verify catches' \
191     'cat test-1-${packname_1}.idx >test-3.idx &&
192      cat test-2-${packname_2}.pack >test-3.pack &&
193      if git verify-pack test-3.idx
194      then false
195      else :;
196      fi &&
197
198      : PACK_SIGNATURE &&
199      cat test-1-${packname_1}.pack >test-3.pack &&
200      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
201      if git verify-pack test-3.idx
202      then false
203      else :;
204      fi &&
205
206      : PACK_VERSION &&
207      cat test-1-${packname_1}.pack >test-3.pack &&
208      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
209      if git verify-pack test-3.idx
210      then false
211      else :;
212      fi &&
213
214      : TYPE/SIZE byte of the first packed object data &&
215      cat test-1-${packname_1}.pack >test-3.pack &&
216      dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=12 &&
217      if git verify-pack test-3.idx
218      then false
219      else :;
220      fi &&
221
222      : sum of the index file itself &&
223      l=`wc -c <test-3.idx` &&
224      l=`expr $l - 20` &&
225      cat test-1-${packname_1}.pack >test-3.pack &&
226      dd if=/dev/zero of=test-3.idx count=20 bs=1 conv=notrunc seek=$l &&
227      if git verify-pack test-3.pack
228      then false
229      else :;
230      fi &&
231
232      :'
233
234 test_expect_success \
235     'build pack index for an existing pack' \
236     'cat test-1-${packname_1}.pack >test-3.pack &&
237      git-index-pack -o tmp.idx test-3.pack &&
238      cmp tmp.idx test-1-${packname_1}.idx &&
239
240      git-index-pack test-3.pack &&
241      cmp test-3.idx test-1-${packname_1}.idx &&
242
243      cat test-2-${packname_2}.pack >test-3.pack &&
244      git-index-pack -o tmp.idx test-2-${packname_2}.pack &&
245      cmp tmp.idx test-2-${packname_2}.idx &&
246
247      git-index-pack test-3.pack &&
248      cmp test-3.idx test-2-${packname_2}.idx &&
249
250      cat test-3-${packname_3}.pack >test-3.pack &&
251      git-index-pack -o tmp.idx test-3-${packname_3}.pack &&
252      cmp tmp.idx test-3-${packname_3}.idx &&
253
254      git-index-pack test-3.pack &&
255      cmp test-3.idx test-3-${packname_3}.idx &&
256
257      :'
258
259 test_expect_success \
260     'fake a SHA1 hash collision' \
261     'test -f    .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67 &&
262      cp -f      .git/objects/9d/235ed07cd19811a6ceb342de82f190e49c9f68 \
263                 .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67'
264
265 test_expect_failure \
266     'make sure index-pack detects the SHA1 collision' \
267     'git-index-pack -o bad.idx test-3.pack'
268
269 test_done