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1#!/bin/sh
2#
3# Copyright (C) 2006 Martin Waitz <tali@admingilde.org>
4#
5
6test_description='test clone --reference'
95cf2c01 7GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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8export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
9
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10. ./test-lib.sh
11
46d76d6c 12base_dir=$(pwd)
cf9dc653 13
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14U=$base_dir/UPLOAD_LOG
15
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16# create a commit in repo $1 with name $2
17commit_in () {
18 (
19 cd "$1" &&
20 echo "$2" >"$2" &&
21 git add "$2" &&
22 git commit -m "$2"
23 )
24}
25
26# check that there are $2 loose objects in repo $1
27test_objcount () {
28 echo "$2" >expect &&
29 git -C "$1" count-objects >actual.raw &&
30 cut -d' ' -f1 <actual.raw >actual &&
31 test_cmp expect actual
32}
33
34test_expect_success 'preparing first repository' '
35 test_create_repo A &&
36 commit_in A file1
37'
cf9dc653 38
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39test_expect_success 'preparing second repository' '
40 git clone A B &&
41 commit_in B file2 &&
42 git -C B repack -ad &&
43 git -C B prune
44'
cf9dc653 45
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46test_expect_success 'cloning with reference (-l -s)' '
47 git clone -l -s --reference B A C
48'
cf9dc653 49
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50test_expect_success 'existence of info/alternates' '
51 test_line_count = 2 C/.git/objects/info/alternates
52'
cf9dc653 53
bc192300 54test_expect_success 'pulling from reference' '
95cf2c01 55 git -C C pull ../B main
bc192300 56'
cf9dc653 57
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58test_expect_success 'that reference gets used' '
59 test_objcount C 0
60'
4ba776c2 61
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62test_expect_success 'cloning with reference (no -l -s)' '
63 GIT_TRACE_PACKET=$U.D git clone --reference B "file://$(pwd)/A" D
64'
4ba776c2 65
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66test_expect_success 'fetched no objects' '
67 test -s "$U.D" &&
68 ! grep " want" "$U.D"
69'
1f7d1a53 70
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71test_expect_success 'existence of info/alternates' '
72 test_line_count = 1 D/.git/objects/info/alternates
73'
1f7d1a53 74
bc192300 75test_expect_success 'pulling from reference' '
95cf2c01 76 git -C D pull ../B main
bc192300 77'
cf9dc653 78
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79test_expect_success 'that reference gets used' '
80 test_objcount D 0
81'
cf9dc653 82
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83test_expect_success 'updating origin' '
84 commit_in A file3 &&
85 git -C A repack -ad &&
86 git -C A prune
87'
cf9dc653 88
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89test_expect_success 'pulling changes from origin' '
90 git -C C pull origin
91'
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92
93# the 2 local objects are commit and tree from the merge
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94test_expect_success 'that alternate to origin gets used' '
95 test_objcount C 2
96'
1f7d1a53 97
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98test_expect_success 'pulling changes from origin' '
99 git -C D pull origin
100'
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101
102# the 5 local objects are expected; file3 blob, commit in A to add it
103# and its tree, and 2 are our tree and the merge commit.
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104test_expect_success 'check objects expected to exist locally' '
105 test_objcount D 5
106'
fabb0199 107
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108test_expect_success 'preparing alternate repository #1' '
109 test_create_repo F &&
110 commit_in F file1
111'
fabb0199 112
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113test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' '
114 git clone F G &&
115 commit_in F file2
116'
fabb0199 117
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118test_expect_success 'cloning alternate repo #1, using #2 as reference' '
119 git clone --reference G F H
120'
b50c8469 121
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122test_expect_success 'cloning with reference being subset of source (-l -s)' '
123 git clone -l -s --reference A B E
124'
b50c8469 125
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126test_expect_success 'cloning with multiple references drops duplicates' '
127 git clone -s --reference B --reference A --reference B A dups &&
128 test_line_count = 2 dups/.git/objects/info/alternates
129'
130
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131test_expect_success 'clone with reference from a tagged repository' '
132 (
bc192300 133 cd A && git tag -a -m tagged HEAD
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134 ) &&
135 git clone --reference=A A I
136'
137
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138test_expect_success 'prepare branched repository' '
139 git clone A J &&
140 (
141 cd J &&
95cf2c01 142 git checkout -b other main^ &&
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143 echo other >otherfile &&
144 git add otherfile &&
145 git commit -m other &&
95cf2c01 146 git checkout main
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147 )
148'
149
f2576591 150test_expect_success 'fetch with incomplete alternates' '
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151 git init K &&
152 echo "$base_dir/A/.git/objects" >K/.git/objects/info/alternates &&
153 (
154 cd K &&
155 git remote add J "file://$base_dir/J" &&
2ad23273 156 GIT_TRACE_PACKET=$U.K git fetch J
acede2eb 157 ) &&
95cf2c01 158 main_object=$(cd A && git for-each-ref --format="%(objectname)" refs/heads/main) &&
2ad23273 159 test -s "$U.K" &&
95cf2c01 160 ! grep " want $main_object" "$U.K" &&
acede2eb 161 tag_object=$(cd A && git for-each-ref --format="%(objectname)" refs/tags/HEAD) &&
97a83fa8 162 ! grep " want $tag_object" "$U.K"
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163'
164
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165test_expect_success 'clone using repo with gitfile as a reference' '
166 git clone --separate-git-dir=L A M &&
167 git clone --reference=M A N &&
168 echo "$base_dir/L/objects" >expected &&
169 test_cmp expected "$base_dir/N/.git/objects/info/alternates"
170'
171
172test_expect_success 'clone using repo pointed at by gitfile as reference' '
173 git clone --reference=M/.git A O &&
174 echo "$base_dir/L/objects" >expected &&
175 test_cmp expected "$base_dir/O/.git/objects/info/alternates"
176'
177
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178test_expect_success 'clone and dissociate from reference' '
179 git init P &&
180 (
64d1022e 181 cd P && test_commit one
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182 ) &&
183 git clone P Q &&
184 (
185 cd Q && test_commit two
186 ) &&
187 git clone --no-local --reference=P Q R &&
188 git clone --no-local --reference=P --dissociate Q S &&
189 # removing the reference P would corrupt R but not S
190 rm -fr P &&
191 test_must_fail git -C R fsck &&
192 git -C S fsck
193'
786b150c 194test_expect_success 'clone, dissociate from partial reference and repack' '
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195 rm -fr P Q R &&
196 git init P &&
197 (
198 cd P &&
199 test_commit one &&
200 git repack &&
201 test_commit two &&
202 git repack
203 ) &&
204 git clone --bare P Q &&
205 (
206 cd P &&
207 git checkout -b second &&
208 test_commit three &&
209 git repack
210 ) &&
211 git clone --bare --dissociate --reference=P Q R &&
212 ls R/objects/pack/*.pack >packs.txt &&
213 test_line_count = 1 packs.txt
214'
fb1d6dab 215
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216test_expect_success 'clone, dissociate from alternates' '
217 rm -fr A B C &&
218 test_create_repo A &&
219 commit_in A file1 &&
220 git clone --reference=A A B &&
221 test_line_count = 1 B/.git/objects/info/alternates &&
222 git clone --local --dissociate B C &&
223 ! test -f C/.git/objects/info/alternates &&
224 ( cd C && git fsck )
225'
226
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227test_expect_success 'setup repo with garbage in objects/*' '
228 git init S &&
229 (
230 cd S &&
231 test_commit A &&
232
233 cd .git/objects &&
234 >.some-hidden-file &&
235 >some-file &&
236 mkdir .some-hidden-dir &&
237 >.some-hidden-dir/some-file &&
238 >.some-hidden-dir/.some-dot-file &&
239 mkdir some-dir &&
240 >some-dir/some-file &&
241 >some-dir/.some-dot-file
242 )
243'
244
245test_expect_success 'clone a repo with garbage in objects/*' '
246 for option in --local --no-hardlinks --shared --dissociate
247 do
248 git clone $option S S$option || return 1 &&
249 git -C S$option fsck || return 1
250 done &&
251 find S-* -name "*some*" | sort >actual &&
252 cat >expected <<-EOF &&
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253 S--dissociate/.git/objects/.some-hidden-dir
254 S--dissociate/.git/objects/.some-hidden-dir/.some-dot-file
255 S--dissociate/.git/objects/.some-hidden-dir/some-file
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256 S--dissociate/.git/objects/.some-hidden-file
257 S--dissociate/.git/objects/some-dir
258 S--dissociate/.git/objects/some-dir/.some-dot-file
259 S--dissociate/.git/objects/some-dir/some-file
260 S--dissociate/.git/objects/some-file
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261 S--local/.git/objects/.some-hidden-dir
262 S--local/.git/objects/.some-hidden-dir/.some-dot-file
263 S--local/.git/objects/.some-hidden-dir/some-file
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264 S--local/.git/objects/.some-hidden-file
265 S--local/.git/objects/some-dir
266 S--local/.git/objects/some-dir/.some-dot-file
267 S--local/.git/objects/some-dir/some-file
268 S--local/.git/objects/some-file
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269 S--no-hardlinks/.git/objects/.some-hidden-dir
270 S--no-hardlinks/.git/objects/.some-hidden-dir/.some-dot-file
271 S--no-hardlinks/.git/objects/.some-hidden-dir/some-file
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272 S--no-hardlinks/.git/objects/.some-hidden-file
273 S--no-hardlinks/.git/objects/some-dir
274 S--no-hardlinks/.git/objects/some-dir/.some-dot-file
275 S--no-hardlinks/.git/objects/some-dir/some-file
276 S--no-hardlinks/.git/objects/some-file
277 EOF
278 test_cmp expected actual
279'
280
36596fd2 281test_expect_success SYMLINKS 'setup repo with manually symlinked or unknown files at objects/' '
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282 git init T &&
283 (
284 cd T &&
285 git config gc.auto 0 &&
286 test_commit A &&
287 git gc &&
288 test_commit B &&
289
290 cd .git/objects &&
291 mv pack packs &&
292 ln -s packs pack &&
293 find ?? -type d >loose-dirs &&
294 last_loose=$(tail -n 1 loose-dirs) &&
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295 mv $last_loose a-loose-dir &&
296 ln -s a-loose-dir $last_loose &&
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297 first_loose=$(head -n 1 loose-dirs) &&
298 rm -f loose-dirs &&
299
300 cd $first_loose &&
301 obj=$(ls *) &&
302 mv $obj ../an-object &&
303 ln -s ../an-object $obj &&
304
305 cd ../ &&
03156169 306 find . -type f | sort >../../../T.objects-files.raw &&
36596fd2 307 find . -type l | sort >../../../T.objects-symlinks.raw &&
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308 echo unknown_content >unknown_file
309 ) &&
310 git -C T fsck &&
311 git -C T rev-list --all --objects >T.objects
312'
313
314
36596fd2 315test_expect_success SYMLINKS 'clone repo with symlinked or unknown files at objects/' '
03156169
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316 for option in --local --no-hardlinks --shared --dissociate
317 do
318 git clone $option T T$option || return 1 &&
319 git -C T$option fsck || return 1 &&
320 git -C T$option rev-list --all --objects >T$option.objects &&
321 test_cmp T.objects T$option.objects &&
322 (
323 cd T$option/.git/objects &&
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324 find . -type f | sort >../../../T$option.objects-files.raw &&
325 find . -type l | sort >../../../T$option.objects-symlinks.raw
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326 )
327 done &&
328
329 for raw in $(ls T*.raw)
330 do
331 sed -e "s!/../!/Y/!; s![0-9a-f]\{38,\}!Z!" -e "/commit-graph/d" \
277eb5af 332 -e "/multi-pack-index/d" <$raw >$raw.de-sha-1 &&
333 sort $raw.de-sha-1 >$raw.de-sha || return 1
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334 done &&
335
336 cat >expected-files <<-EOF &&
337 ./Y/Z
338 ./Y/Z
277eb5af 339 ./Y/Z
03156169 340 ./a-loose-dir/Z
36596fd2 341 ./an-object
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342 ./info/packs
343 ./pack/pack-Z.idx
344 ./pack/pack-Z.pack
345 ./packs/pack-Z.idx
346 ./packs/pack-Z.pack
347 ./unknown_file
348 EOF
349
36596fd2 350 for option in --local --no-hardlinks --dissociate
03156169 351 do
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352 test_cmp expected-files T$option.objects-files.raw.de-sha || return 1 &&
353 test_must_be_empty T$option.objects-symlinks.raw.de-sha || return 1
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354 done &&
355
356 echo ./info/alternates >expected-files &&
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357 test_cmp expected-files T--shared.objects-files.raw &&
358 test_must_be_empty T--shared.objects-symlinks.raw
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359'
360
cf9dc653 361test_done