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Make on-disk index representation separate from in-core one
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1#!/bin/sh
2#
3# Copyright (c) 2005 Junio C Hamano
4#
5
6test_description='Test the very basics part #1.
7
8The rest of the test suite does not check the basic operation of git
9plumbing commands to work very carefully. Their job is to concentrate
10on tricky features that caused bugs in the past to detect regression.
11
12This test runs very basic features, like registering things in cache,
13writing tree, etc.
14
15Note that this test *deliberately* hard-codes many expected object
16IDs. When object ID computation changes, like in the previous case of
17swapping compression and hashing order, the person who is making the
18modification *should* take notice and update the test vectors here.
19'
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20
21################################################################
e2b70087 22# It appears that people try to run tests without building...
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23
24../git >/dev/null
25if test $? != 1
26then
27 echo >&2 'You do not seem to have built git yet.'
28 exit 1
29fi
30
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31. ./test-lib.sh
32
33################################################################
5be60078 34# git init has been done in an empty repository.
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35# make sure it is empty.
36
37find .git/objects -type f -print >should-be-empty
38test_expect_success \
5be60078 39 '.git/objects should be empty after git init in an empty repo.' \
a6080a0a 40 'cmp -s /dev/null should-be-empty'
e1970ce4 41
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42# also it should have 2 subdirectories; no fan-out anymore, pack, and info.
43# 3 is counting "objects" itself
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44find .git/objects -type d -print >full-of-directories
45test_expect_success \
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46 '.git/objects should have 3 subdirectories.' \
47 'test $(wc -l < full-of-directories) = 3'
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48
49################################################################
50# Basics of the basics
51
52# updating a new file without --add should fail.
53test_expect_failure \
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54 'git update-index without --add should fail adding.' \
55 'git update-index should-be-empty'
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56
57# and with --add it should succeed, even if it is empty (it used to fail).
58test_expect_success \
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59 'git update-index with --add should succeed.' \
60 'git update-index --add should-be-empty'
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61
62test_expect_success \
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63 'writing tree out with git write-tree' \
64 'tree=$(git write-tree)'
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65
66# we know the shape and contents of the tree and know the object ID for it.
67test_expect_success \
68 'validate object ID of a known tree.' \
69 'test "$tree" = 7bb943559a305bdd6bdee2cef6e5df2413c3d30a'
70
71# Removing paths.
72rm -f should-be-empty full-of-directories
73test_expect_failure \
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74 'git update-index without --remove should fail removing.' \
75 'git update-index should-be-empty'
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76
77test_expect_success \
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78 'git update-index with --remove should be able to remove.' \
79 'git update-index --remove should-be-empty'
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80
81# Empty tree can be written with recent write-tree.
82test_expect_success \
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83 'git write-tree should be able to write an empty tree.' \
84 'tree=$(git write-tree)'
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85
86test_expect_success \
87 'validate object ID of a known tree.' \
88 'test "$tree" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904'
89
90# Various types of objects
91mkdir path2 path3 path3/subp3
92for p in path0 path2/file2 path3/file3 path3/subp3/file3
93do
94 echo "hello $p" >$p
95 ln -s "hello $p" ${p}sym
96done
97test_expect_success \
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98 'adding various types of objects with git update-index --add.' \
99 'find path* ! -type d -print | xargs git update-index --add'
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100
101# Show them and see that matches what we expect.
102test_expect_success \
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103 'showing stage with git ls-files --stage' \
104 'git ls-files --stage >current'
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105
106cat >expected <<\EOF
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107100644 f87290f8eb2cbbea7857214459a0739927eab154 0 path0
108120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0 path0sym
109100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0 path2/file2
110120000 d8ce161addc5173867a3c3c730924388daedbc38 0 path2/file2sym
111100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0 path3/file3
112120000 8599103969b43aff7e430efea79ca4636466794f 0 path3/file3sym
113100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0 path3/subp3/file3
114120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0 path3/subp3/file3sym
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115EOF
116test_expect_success \
5be60078 117 'validate git ls-files output for a known tree.' \
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118 'diff current expected'
119
120test_expect_success \
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121 'writing tree out with git write-tree.' \
122 'tree=$(git write-tree)'
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123test_expect_success \
124 'validate object ID for a known tree.' \
125 'test "$tree" = 087704a96baf1c2d1c869a8b084481e121c88b5b'
126
127test_expect_success \
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128 'showing tree with git ls-tree' \
129 'git ls-tree $tree >current'
e1970ce4 130cat >expected <<\EOF
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131100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
132120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
133040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe path2
134040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3 path3
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135EOF
136test_expect_success \
5be60078 137 'git ls-tree output for a known tree.' \
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138 'diff current expected'
139
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140# This changed in ls-tree pathspec change -- recursive does
141# not show tree nodes anymore.
e1970ce4 142test_expect_success \
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143 'showing tree with git ls-tree -r' \
144 'git ls-tree -r $tree >current'
e1970ce4 145cat >expected <<\EOF
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146100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
147120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
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148100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 path2/file2
149120000 blob d8ce161addc5173867a3c3c730924388daedbc38 path2/file2sym
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150100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376 path3/file3
151120000 blob 8599103969b43aff7e430efea79ca4636466794f path3/file3sym
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152100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f path3/subp3/file3
153120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c path3/subp3/file3sym
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154EOF
155test_expect_success \
5be60078 156 'git ls-tree -r output for a known tree.' \
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157 'diff current expected'
158
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159# But with -r -t we can have both.
160test_expect_success \
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161 'showing tree with git ls-tree -r -t' \
162 'git ls-tree -r -t $tree >current'
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163cat >expected <<\EOF
164100644 blob f87290f8eb2cbbea7857214459a0739927eab154 path0
165120000 blob 15a98433ae33114b085f3eb3bb03b832b3180a01 path0sym
166040000 tree 58a09c23e2ca152193f2786e06986b7b6712bdbe path2
167100644 blob 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 path2/file2
168120000 blob d8ce161addc5173867a3c3c730924388daedbc38 path2/file2sym
169040000 tree 21ae8269cacbe57ae09138dcc3a2887f904d02b3 path3
170100644 blob 0aa34cae68d0878578ad119c86ca2b5ed5b28376 path3/file3
171120000 blob 8599103969b43aff7e430efea79ca4636466794f path3/file3sym
172040000 tree 3c5e5399f3a333eddecce7a9b9465b63f65f51e2 path3/subp3
173100644 blob 00fb5908cb97c2564a9783c0c64087333b3b464f path3/subp3/file3
174120000 blob 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c path3/subp3/file3sym
175EOF
176test_expect_success \
5be60078 177 'git ls-tree -r output for a known tree.' \
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178 'diff current expected'
179
6bd20358 180test_expect_success \
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181 'writing partial tree out with git write-tree --prefix.' \
182 'ptree=$(git write-tree --prefix=path3)'
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183test_expect_success \
184 'validate object ID for a known tree.' \
185 'test "$ptree" = 21ae8269cacbe57ae09138dcc3a2887f904d02b3'
186
187test_expect_success \
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188 'writing partial tree out with git write-tree --prefix.' \
189 'ptree=$(git write-tree --prefix=path3/subp3)'
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190test_expect_success \
191 'validate object ID for a known tree.' \
192 'test "$ptree" = 3c5e5399f3a333eddecce7a9b9465b63f65f51e2'
193
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194cat >badobjects <<EOF
195100644 blob 1000000000000000000000000000000000000000 dir/file1
196100644 blob 2000000000000000000000000000000000000000 dir/file2
197100644 blob 3000000000000000000000000000000000000000 dir/file3
198100644 blob 4000000000000000000000000000000000000000 dir/file4
199100644 blob 5000000000000000000000000000000000000000 dir/file5
200EOF
201
202rm .git/index
203test_expect_success \
204 'put invalid objects into the index.' \
5be60078 205 'git update-index --index-info < badobjects'
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206
207test_expect_failure \
208 'writing this tree without --missing-ok.' \
5be60078 209 'git write-tree'
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210
211test_expect_success \
212 'writing this tree with --missing-ok.' \
5be60078 213 'git write-tree --missing-ok'
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214
215
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216################################################################
217rm .git/index
218test_expect_success \
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219 'git read-tree followed by write-tree should be idempotent.' \
220 'git read-tree $tree &&
e1970ce4 221 test -f .git/index &&
5be60078 222 newtree=$(git write-tree) &&
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223 test "$newtree" = "$tree"'
224
225cat >expected <<\EOF
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226:100644 100644 f87290f8eb2cbbea7857214459a0739927eab154 0000000000000000000000000000000000000000 M path0
227:120000 120000 15a98433ae33114b085f3eb3bb03b832b3180a01 0000000000000000000000000000000000000000 M path0sym
228:100644 100644 3feff949ed00a62d9f7af97c15cd8a30595e7ac7 0000000000000000000000000000000000000000 M path2/file2
229:120000 120000 d8ce161addc5173867a3c3c730924388daedbc38 0000000000000000000000000000000000000000 M path2/file2sym
230:100644 100644 0aa34cae68d0878578ad119c86ca2b5ed5b28376 0000000000000000000000000000000000000000 M path3/file3
231:120000 120000 8599103969b43aff7e430efea79ca4636466794f 0000000000000000000000000000000000000000 M path3/file3sym
232:100644 100644 00fb5908cb97c2564a9783c0c64087333b3b464f 0000000000000000000000000000000000000000 M path3/subp3/file3
233:120000 120000 6649a1ebe9e9f1c553b66f5a6e74136a07ccc57c 0000000000000000000000000000000000000000 M path3/subp3/file3sym
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234EOF
235test_expect_success \
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236 'validate git diff-files output for a know cache/work tree state.' \
237 'git diff-files >current && diff >/dev/null -b current expected'
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238
239test_expect_success \
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240 'git update-index --refresh should succeed.' \
241 'git update-index --refresh'
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242
243test_expect_success \
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244 'no diff after checkout and git update-index --refresh.' \
245 'git diff-files >current && cmp -s current /dev/null'
e1970ce4 246
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247################################################################
248P=087704a96baf1c2d1c869a8b084481e121c88b5b
249test_expect_success \
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250 'git commit-tree records the correct tree in a commit.' \
251 'commit0=$(echo NO | git commit-tree $P) &&
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252 tree=$(git show --pretty=raw $commit0 |
253 sed -n -e "s/^tree //p" -e "/^author /q") &&
254 test "z$tree" = "z$P"'
255
256test_expect_success \
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257 'git commit-tree records the correct parent in a commit.' \
258 'commit1=$(echo NO | git commit-tree $P -p $commit0) &&
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259 parent=$(git show --pretty=raw $commit1 |
260 sed -n -e "s/^parent //p" -e "/^author /q") &&
261 test "z$commit0" = "z$parent"'
262
263test_expect_success \
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264 'git commit-tree omits duplicated parent in a commit.' \
265 'commit2=$(echo NO | git commit-tree $P -p $commit0 -p $commit0) &&
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266 parent=$(git show --pretty=raw $commit2 |
267 sed -n -e "s/^parent //p" -e "/^author /q" |
268 sort -u) &&
269 test "z$commit0" = "z$parent" &&
270 numparent=$(git show --pretty=raw $commit2 |
271 sed -n -e "s/^parent //p" -e "/^author /q" |
272 wc -l) &&
273 test $numparent = 1'
274
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275test_expect_success 'update-index D/F conflict' '
276 mv path0 tmp &&
277 mv path2 path0 &&
278 mv tmp path2 &&
279 git update-index --add --replace path2 path0/file2 &&
280 numpath0=$(git ls-files path0 | wc -l) &&
281 test $numpath0 = 1
282'
283
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284test_expect_success 'absolute path works as expected' '
285 mkdir first &&
286 ln -s ../.git first/.git &&
287 mkdir second &&
288 ln -s ../first second/other &&
289 mkdir third &&
290 dir="$(cd .git; pwd -P)" &&
291 dir2=third/../second/other/.git &&
292 test "$dir" = "$(test-absolute-path $dir2)" &&
293 file="$dir"/index &&
294 test "$file" = "$(test-absolute-path $dir2/index)" &&
295 ln -s ../first/file .git/syml &&
296 sym="$(cd first; pwd -P)"/file &&
297 test "$sym" = "$(test-absolute-path $dir2/syml)"
298'
299
e1970ce4 300test_done