freshlybakedca.ke
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1pack_refs=${pack_refs:-pack-refs}
2
3test_expect_success 'enable reflogs' '
4 git config core.logallrefupdates true
5'
6
7test_expect_success 'prepare a trivial repository' '
8 echo Hello > A &&
9 git update-index --add A &&
10 git commit -m "Initial commit." &&
11 HEAD=$(git rev-parse --verify HEAD)
12'
13
14test_expect_success '${pack_refs} --prune --all' '
15 test_path_is_missing .git/packed-refs &&
16 git ${pack_refs} --no-prune --all &&
17 test_path_is_file .git/packed-refs &&
18 N=$(find .git/refs -type f | wc -l) &&
19 test "$N" != 0 &&
20
21 git ${pack_refs} --prune --all &&
22 test_path_is_file .git/packed-refs &&
23 N=$(find .git/refs -type f) &&
24 test -z "$N"
25'
26
27SHA1=
28
29test_expect_success 'see if git show-ref works as expected' '
30 git branch a &&
31 SHA1=$(cat .git/refs/heads/a) &&
32 echo "$SHA1 refs/heads/a" >expect &&
33 git show-ref a >result &&
34 test_cmp expect result
35'
36
37test_expect_success 'see if a branch still exists when packed' '
38 git branch b &&
39 git ${pack_refs} --all &&
40 rm -f .git/refs/heads/b &&
41 echo "$SHA1 refs/heads/b" >expect &&
42 git show-ref b >result &&
43 test_cmp expect result
44'
45
46test_expect_success 'git branch c/d should barf if branch c exists' '
47 git branch c &&
48 git ${pack_refs} --all &&
49 rm -f .git/refs/heads/c &&
50 test_must_fail git branch c/d
51'
52
53test_expect_success 'see if a branch still exists after git ${pack_refs} --prune' '
54 git branch e &&
55 git ${pack_refs} --all --prune &&
56 echo "$SHA1 refs/heads/e" >expect &&
57 git show-ref e >result &&
58 test_cmp expect result
59'
60
61test_expect_success 'see if git ${pack_refs} --prune remove ref files' '
62 git branch f &&
63 git ${pack_refs} --all --prune &&
64 ! test -f .git/refs/heads/f
65'
66
67test_expect_success 'see if git ${pack_refs} --prune removes empty dirs' '
68 git branch r/s/t &&
69 git ${pack_refs} --all --prune &&
70 ! test -e .git/refs/heads/r
71'
72
73test_expect_success 'git branch g should work when git branch g/h has been deleted' '
74 git branch g/h &&
75 git ${pack_refs} --all --prune &&
76 git branch -d g/h &&
77 git branch g &&
78 git ${pack_refs} --all &&
79 git branch -d g
80'
81
82test_expect_success 'git branch i/j/k should barf if branch i exists' '
83 git branch i &&
84 git ${pack_refs} --all --prune &&
85 test_must_fail git branch i/j/k
86'
87
88test_expect_success 'test git branch k after branch k/l/m and k/lm have been deleted' '
89 git branch k/l &&
90 git branch k/lm &&
91 git branch -d k/l &&
92 git branch k/l/m &&
93 git branch -d k/l/m &&
94 git branch -d k/lm &&
95 git branch k
96'
97
98test_expect_success 'test git branch n after some branch deletion and pruning' '
99 git branch n/o &&
100 git branch n/op &&
101 git branch -d n/o &&
102 git branch n/o/p &&
103 git branch -d n/op &&
104 git ${pack_refs} --all --prune &&
105 git branch -d n/o/p &&
106 git branch n
107'
108
109test_expect_success 'test excluded refs are not packed' '
110 git branch dont_pack1 &&
111 git branch dont_pack2 &&
112 git branch pack_this &&
113 git ${pack_refs} --all --exclude "refs/heads/dont_pack*" &&
114 test -f .git/refs/heads/dont_pack1 &&
115 test -f .git/refs/heads/dont_pack2 &&
116 ! test -f .git/refs/heads/pack_this'
117
118test_expect_success 'test --no-exclude refs clears excluded refs' '
119 git branch dont_pack3 &&
120 git branch dont_pack4 &&
121 git ${pack_refs} --all --exclude "refs/heads/dont_pack*" --no-exclude &&
122 ! test -f .git/refs/heads/dont_pack3 &&
123 ! test -f .git/refs/heads/dont_pack4'
124
125test_expect_success 'test only included refs are packed' '
126 git branch pack_this1 &&
127 git branch pack_this2 &&
128 git tag dont_pack5 &&
129 git ${pack_refs} --include "refs/heads/pack_this*" &&
130 test -f .git/refs/tags/dont_pack5 &&
131 ! test -f .git/refs/heads/pack_this1 &&
132 ! test -f .git/refs/heads/pack_this2'
133
134test_expect_success 'test --no-include refs clears included refs' '
135 git branch pack1 &&
136 git branch pack2 &&
137 git ${pack_refs} --include "refs/heads/pack*" --no-include &&
138 test -f .git/refs/heads/pack1 &&
139 test -f .git/refs/heads/pack2'
140
141test_expect_success 'test --exclude takes precedence over --include' '
142 git branch dont_pack5 &&
143 git ${pack_refs} --include "refs/heads/pack*" --exclude "refs/heads/pack*" &&
144 test -f .git/refs/heads/dont_pack5'
145
146test_expect_success 'see if up-to-date packed refs are preserved' '
147 git branch q &&
148 git ${pack_refs} --all --prune &&
149 git update-ref refs/heads/q refs/heads/q &&
150 ! test -f .git/refs/heads/q
151'
152
153test_expect_success 'pack, prune and repack' '
154 git tag foo &&
155 git ${pack_refs} --all --prune &&
156 git show-ref >all-of-them &&
157 git ${pack_refs} &&
158 git show-ref >again &&
159 test_cmp all-of-them again
160'
161
162test_expect_success 'explicit ${pack_refs} with dangling packed reference' '
163 git commit --allow-empty -m "soon to be garbage-collected" &&
164 git ${pack_refs} --all &&
165 git reset --hard HEAD^ &&
166 git reflog expire --expire=all --all &&
167 git prune --expire=all &&
168 git ${pack_refs} --all 2>result &&
169 test_must_be_empty result
170'
171
172test_expect_success 'delete ref with dangling packed version' '
173 git checkout -b lamb &&
174 git commit --allow-empty -m "future garbage" &&
175 git ${pack_refs} --all &&
176 git reset --hard HEAD^ &&
177 git checkout main &&
178 git reflog expire --expire=all --all &&
179 git prune --expire=all &&
180 git branch -d lamb 2>result &&
181 test_must_be_empty result
182'
183
184test_expect_success 'delete ref while another dangling packed ref' '
185 git branch lamb &&
186 git commit --allow-empty -m "future garbage" &&
187 git ${pack_refs} --all &&
188 git reset --hard HEAD^ &&
189 git reflog expire --expire=all --all &&
190 git prune --expire=all &&
191 git branch -d lamb 2>result &&
192 test_must_be_empty result
193'
194
195test_expect_success 'pack ref directly below refs/' '
196 git update-ref refs/top HEAD &&
197 git ${pack_refs} --all --prune &&
198 grep refs/top .git/packed-refs &&
199 test_path_is_missing .git/refs/top
200'
201
202test_expect_success 'do not pack ref in refs/bisect' '
203 git update-ref refs/bisect/local HEAD &&
204 git ${pack_refs} --all --prune &&
205 ! grep refs/bisect/local .git/packed-refs >/dev/null &&
206 test_path_is_file .git/refs/bisect/local
207'
208
209test_expect_success 'disable reflogs' '
210 git config core.logallrefupdates false &&
211 rm -rf .git/logs
212'
213
214test_expect_success 'create packed foo/bar/baz branch' '
215 git branch foo/bar/baz &&
216 git ${pack_refs} --all --prune &&
217 test_path_is_missing .git/refs/heads/foo/bar/baz &&
218 test_must_fail git reflog exists refs/heads/foo/bar/baz
219'
220
221test_expect_success 'notice d/f conflict with existing directory' '
222 test_must_fail git branch foo &&
223 test_must_fail git branch foo/bar
224'
225
226test_expect_success 'existing directory reports concrete ref' '
227 test_must_fail git branch foo 2>stderr &&
228 test_grep refs/heads/foo/bar/baz stderr
229'
230
231test_expect_success 'notice d/f conflict with existing ref' '
232 test_must_fail git branch foo/bar/baz/extra &&
233 test_must_fail git branch foo/bar/baz/lots/of/extra/components
234'
235
236test_expect_success 'reject packed-refs with unterminated line' '
237 cp .git/packed-refs .git/packed-refs.bak &&
238 test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
239 printf "%s" "$HEAD refs/zzzzz" >>.git/packed-refs &&
240 echo "fatal: unterminated line in .git/packed-refs: $HEAD refs/zzzzz" >expected_err &&
241 test_must_fail git for-each-ref >out 2>err &&
242 test_cmp expected_err err
243'
244
245test_expect_success 'reject packed-refs containing junk' '
246 cp .git/packed-refs .git/packed-refs.bak &&
247 test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
248 printf "%s\n" "bogus content" >>.git/packed-refs &&
249 echo "fatal: unexpected line in .git/packed-refs: bogus content" >expected_err &&
250 test_must_fail git for-each-ref >out 2>err &&
251 test_cmp expected_err err
252'
253
254test_expect_success 'reject packed-refs with a short SHA-1' '
255 cp .git/packed-refs .git/packed-refs.bak &&
256 test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
257 printf "%.7s %s\n" $HEAD refs/zzzzz >>.git/packed-refs &&
258 printf "fatal: unexpected line in .git/packed-refs: %.7s %s\n" $HEAD refs/zzzzz >expected_err &&
259 test_must_fail git for-each-ref >out 2>err &&
260 test_cmp expected_err err
261'
262
263test_expect_success 'timeout if packed-refs.lock exists' '
264 LOCK=.git/packed-refs.lock &&
265 >"$LOCK" &&
266 test_when_finished "rm -f $LOCK" &&
267 test_must_fail git ${pack_refs} --all --prune
268'
269
270test_expect_success 'retry acquiring packed-refs.lock' '
271 LOCK=.git/packed-refs.lock &&
272 >"$LOCK" &&
273 test_when_finished "wait && rm -f $LOCK" &&
274 {
275 ( sleep 1 && rm -f $LOCK ) &
276 } &&
277 git -c core.packedrefstimeout=3000 ${pack_refs} --all --prune
278'
279
280test_expect_success SYMLINKS 'pack symlinked packed-refs' '
281 # First make sure that symlinking works when reading:
282 git update-ref refs/heads/lossy refs/heads/main &&
283 git for-each-ref >all-refs-before &&
284 mv .git/packed-refs .git/my-deviant-packed-refs &&
285 ln -s my-deviant-packed-refs .git/packed-refs &&
286 git for-each-ref >all-refs-linked &&
287 test_cmp all-refs-before all-refs-linked &&
288 git ${pack_refs} --all --prune &&
289 git for-each-ref >all-refs-packed &&
290 test_cmp all-refs-before all-refs-packed &&
291 test -h .git/packed-refs &&
292 test "$(test_readlink .git/packed-refs)" = "my-deviant-packed-refs"
293'
294
295# The 'packed-refs' file is stored directly in .git/. This means it is global
296# to the repository, and can only contain refs that are shared across all
297# worktrees.
298test_expect_success 'refs/worktree must not be packed' '
299 test_commit initial &&
300 test_commit wt1 &&
301 test_commit wt2 &&
302 git worktree add wt1 wt1 &&
303 git worktree add wt2 wt2 &&
304 git checkout initial &&
305 git update-ref refs/worktree/foo HEAD &&
306 git -C wt1 update-ref refs/worktree/foo HEAD &&
307 git -C wt2 update-ref refs/worktree/foo HEAD &&
308 git ${pack_refs} --all &&
309 test_path_is_missing .git/refs/tags/wt1 &&
310 test_path_is_file .git/refs/worktree/foo &&
311 test_path_is_file .git/worktrees/wt1/refs/worktree/foo &&
312 test_path_is_file .git/worktrees/wt2/refs/worktree/foo
313'
314
315# we do not want to count on running ${pack_refs} to
316# actually pack it, as it is perfectly reasonable to
317# skip processing a broken ref
318test_expect_success 'create packed-refs file with broken ref' '
319 test_tick && git commit --allow-empty -m one &&
320 recoverable=$(git rev-parse HEAD) &&
321 test_tick && git commit --allow-empty -m two &&
322 missing=$(git rev-parse HEAD) &&
323 rm -f .git/refs/heads/main &&
324 cat >.git/packed-refs <<-EOF &&
325 $missing refs/heads/main
326 $recoverable refs/heads/other
327 EOF
328 echo $missing >expect &&
329 git rev-parse refs/heads/main >actual &&
330 test_cmp expect actual
331'
332
333test_expect_success '${pack_refs} does not silently delete broken packed ref' '
334 git ${pack_refs} --all --prune &&
335 git rev-parse refs/heads/main >actual &&
336 test_cmp expect actual
337'
338
339test_expect_success '${pack_refs} does not drop broken refs during deletion' '
340 git update-ref -d refs/heads/other &&
341 git rev-parse refs/heads/main >actual &&
342 test_cmp expect actual
343'
344
345for command in "git ${pack_refs} --all --auto" "git maintenance run --task=${pack_refs} --auto"
346do
347 test_expect_success "$command does not repack below 16 refs without packed-refs" '
348 test_when_finished "rm -rf repo" &&
349 git init repo &&
350 (
351 cd repo &&
352 git config set maintenance.auto false &&
353 git commit --allow-empty --message "initial" &&
354
355 # Create 14 additional references, which brings us to
356 # 15 together with the default branch.
357 printf "create refs/heads/loose-%d HEAD\n" $(test_seq 14) >stdin &&
358 git update-ref --stdin <stdin &&
359 test_path_is_missing .git/packed-refs &&
360 git ${pack_refs} --auto --all &&
361 test_path_is_missing .git/packed-refs &&
362
363 # Create the 16th reference, which should cause us to repack.
364 git update-ref refs/heads/loose-15 HEAD &&
365 git ${pack_refs} --auto --all &&
366 test_path_is_file .git/packed-refs
367 )
368 '
369
370 test_expect_success "$command does not repack below 16 refs with small packed-refs" '
371 test_when_finished "rm -rf repo" &&
372 git init repo &&
373 (
374 cd repo &&
375 git config set maintenance.auto false &&
376 git commit --allow-empty --message "initial" &&
377
378 git ${pack_refs} --all &&
379 test_line_count = 2 .git/packed-refs &&
380
381 # Create 15 loose references.
382 printf "create refs/heads/loose-%d HEAD\n" $(test_seq 15) >stdin &&
383 git update-ref --stdin <stdin &&
384 git ${pack_refs} --auto --all &&
385 test_line_count = 2 .git/packed-refs &&
386
387 # Create the 16th loose reference, which should cause us to repack.
388 git update-ref refs/heads/loose-17 HEAD &&
389 git ${pack_refs} --auto --all &&
390 test_line_count = 18 .git/packed-refs
391 )
392 '
393
394 test_expect_success "$command scales with size of packed-refs" '
395 test_when_finished "rm -rf repo" &&
396 git init repo &&
397 (
398 cd repo &&
399 git config set maintenance.auto false &&
400 git commit --allow-empty --message "initial" &&
401
402 # Create 99 packed refs. This should cause the heuristic
403 # to require more than the minimum amount of loose refs.
404 test_seq 99 |
405 while read i
406 do
407 printf "create refs/heads/packed-%d HEAD\n" $i || return 1
408 done >stdin &&
409 git update-ref --stdin <stdin &&
410 git ${pack_refs} --all &&
411 test_line_count = 101 .git/packed-refs &&
412
413 # Create 24 loose refs, which should not yet cause us to repack.
414 printf "create refs/heads/loose-%d HEAD\n" $(test_seq 24) >stdin &&
415 git update-ref --stdin <stdin &&
416 git ${pack_refs} --auto --all &&
417 test_line_count = 101 .git/packed-refs &&
418
419 # Create another handful of refs to cross the border.
420 # Note that we explicitly do not check for strict
421 # boundaries here, as this also depends on the size of
422 # the object hash.
423 printf "create refs/heads/addn-%d HEAD\n" $(test_seq 10) >stdin &&
424 git update-ref --stdin <stdin &&
425 git ${pack_refs} --auto --all &&
426 test_line_count = 135 .git/packed-refs
427 )
428 '
429done
430
431test_done