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0c8151b6 NTND |
1 | #!/bin/sh |
2 | ||
3 | test_description='basic git gc tests | |
4 | ' | |
5 | ||
6 | . ./test-lib.sh | |
6b89a34c | 7 | . "$TEST_DIRECTORY"/lib-terminal.sh |
0c8151b6 | 8 | |
9806f5a7 NTND |
9 | test_expect_success 'setup' ' |
10 | # do not let the amount of physical memory affects gc | |
11 | # behavior, make sure we always pack everything to one pack by | |
12 | # default | |
368f3cb0 | 13 | git config gc.bigPackThreshold 2g && |
14 | ||
15 | # These are simply values which, when hashed as a blob with a newline, | |
16 | # produce a hash where the first byte is 0x17 in their respective | |
17 | # algorithms. | |
18 | test_oid_cache <<-EOF | |
19 | obj1 sha1:263 | |
20 | obj1 sha256:34 | |
21 | ||
22 | obj2 sha1:410 | |
23 | obj2 sha256:174 | |
24 | ||
25 | obj3 sha1:523 | |
26 | obj3 sha256:313 | |
27 | ||
28 | obj4 sha1:790 | |
29 | obj4 sha256:481 | |
30 | EOF | |
9806f5a7 NTND |
31 | ' |
32 | ||
0c8151b6 NTND |
33 | test_expect_success 'gc empty repository' ' |
34 | git gc | |
35 | ' | |
36 | ||
4c5baf02 JN |
37 | test_expect_success 'gc does not leave behind pid file' ' |
38 | git gc && | |
39 | test_path_is_missing .git/gc.pid | |
40 | ' | |
41 | ||
0c8151b6 NTND |
42 | test_expect_success 'gc --gobbledegook' ' |
43 | test_expect_code 129 git gc --nonsense 2>err && | |
9a001381 | 44 | test_i18ngrep "[Uu]sage: git gc" err |
0c8151b6 NTND |
45 | ' |
46 | ||
47 | test_expect_success 'gc -h with invalid configuration' ' | |
48 | mkdir broken && | |
49 | ( | |
50 | cd broken && | |
51 | git init && | |
52 | echo "[gc] pruneexpire = CORRUPT" >>.git/config && | |
53 | test_expect_code 129 git gc -h >usage 2>&1 | |
54 | ) && | |
9a001381 | 55 | test_i18ngrep "[Uu]sage" broken/usage |
0c8151b6 NTND |
56 | ' |
57 | ||
14886b40 | 58 | test_expect_success 'gc is not aborted due to a stale symref' ' |
8c845cde JS |
59 | git init remote && |
60 | ( | |
61 | cd remote && | |
62 | test_commit initial && | |
63 | git clone . ../client && | |
64 | git branch -m develop && | |
65 | cd ../client && | |
66 | git fetch --prune && | |
67 | git gc | |
68 | ) | |
69 | ' | |
70 | ||
ae4e89e5 NTND |
71 | test_expect_success 'gc --keep-largest-pack' ' |
72 | test_create_repo keep-pack && | |
73 | ( | |
74 | cd keep-pack && | |
75 | test_commit one && | |
76 | test_commit two && | |
77 | test_commit three && | |
78 | git gc && | |
79 | ( cd .git/objects/pack && ls *.pack ) >pack-list && | |
80 | test_line_count = 1 pack-list && | |
45a26864 | 81 | cp pack-list base-pack-list && |
ae4e89e5 NTND |
82 | test_commit four && |
83 | git repack -d && | |
84 | test_commit five && | |
85 | git repack -d && | |
86 | ( cd .git/objects/pack && ls *.pack ) >pack-list && | |
87 | test_line_count = 3 pack-list && | |
88 | git gc --keep-largest-pack && | |
89 | ( cd .git/objects/pack && ls *.pack ) >pack-list && | |
90 | test_line_count = 2 pack-list && | |
e941c48d EW |
91 | awk "/^P /{print \$2}" <.git/objects/info/packs >pack-info && |
92 | test_line_count = 2 pack-info && | |
45a26864 | 93 | test_path_is_file .git/objects/pack/$(cat base-pack-list) && |
ae4e89e5 NTND |
94 | git fsck |
95 | ) | |
96 | ' | |
97 | ||
9eb542f2 ÆAB |
98 | test_expect_success 'pre-auto-gc hook can stop auto gc' ' |
99 | cat >err.expect <<-\EOF && | |
100 | no gc for you | |
101 | EOF | |
102 | ||
103 | git init pre-auto-gc-hook && | |
d7ef0368 ÆAB |
104 | test_hook -C pre-auto-gc-hook pre-auto-gc <<-\EOF && |
105 | echo >&2 no gc for you && | |
106 | exit 1 | |
107 | EOF | |
9eb542f2 ÆAB |
108 | ( |
109 | cd pre-auto-gc-hook && | |
9eb542f2 ÆAB |
110 | |
111 | git config gc.auto 3 && | |
112 | git config gc.autoDetach false && | |
113 | ||
114 | # We need to create two object whose sha1s start with 17 | |
115 | # since this is what git gc counts. As it happens, these | |
116 | # two blobs will do so. | |
117 | test_commit "$(test_oid obj1)" && | |
118 | test_commit "$(test_oid obj2)" && | |
119 | ||
120 | git gc --auto >../out.actual 2>../err.actual | |
121 | ) && | |
122 | test_must_be_empty out.actual && | |
123 | test_cmp err.expect err.actual && | |
124 | ||
125 | cat >err.expect <<-\EOF && | |
126 | will gc for you | |
127 | Auto packing the repository for optimum performance. | |
128 | See "git help gc" for manual housekeeping. | |
129 | EOF | |
130 | ||
d7ef0368 ÆAB |
131 | test_hook -C pre-auto-gc-hook --clobber pre-auto-gc <<-\EOF && |
132 | echo >&2 will gc for you && | |
133 | exit 0 | |
134 | EOF | |
135 | ||
136 | git -C pre-auto-gc-hook gc --auto >out.actual 2>err.actual && | |
9eb542f2 ÆAB |
137 | |
138 | test_must_be_empty out.actual && | |
139 | test_cmp err.expect err.actual | |
140 | ' | |
141 | ||
bdf56de8 DT |
142 | test_expect_success 'auto gc with too many loose objects does not attempt to create bitmaps' ' |
143 | test_config gc.auto 3 && | |
144 | test_config gc.autodetach false && | |
145 | test_config pack.writebitmaps true && | |
146 | # We need to create two object whose sha1s start with 17 | |
147 | # since this is what git gc counts. As it happens, these | |
148 | # two blobs will do so. | |
368f3cb0 | 149 | test_commit "$(test_oid obj1)" && |
150 | test_commit "$(test_oid obj2)" && | |
bdf56de8 DT |
151 | # Our first gc will create a pack; our second will create a second pack |
152 | git gc --auto && | |
35a8a354 | 153 | ls .git/objects/pack/pack-*.pack | sort >existing_packs && |
368f3cb0 | 154 | test_commit "$(test_oid obj3)" && |
155 | test_commit "$(test_oid obj4)" && | |
bdf56de8 DT |
156 | |
157 | git gc --auto 2>err && | |
158 | test_i18ngrep ! "^warning:" err && | |
35a8a354 | 159 | ls .git/objects/pack/pack-*.pack | sort >post_packs && |
bdf56de8 DT |
160 | comm -1 -3 existing_packs post_packs >new && |
161 | comm -2 -3 existing_packs post_packs >del && | |
162 | test_line_count = 0 del && # No packs are deleted | |
35a8a354 | 163 | test_line_count = 1 new # There is one new pack |
bdf56de8 DT |
164 | ' |
165 | ||
6b89a34c | 166 | test_expect_success 'gc --no-quiet' ' |
44a4693b | 167 | GIT_PROGRESS_DELAY=0 git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr && |
6b89a34c | 168 | test_must_be_empty stdout && |
6b89a34c ÆAB |
169 | test_i18ngrep "Computing commit graph generation numbers" stderr |
170 | ' | |
171 | ||
172 | test_expect_success TTY 'with TTY: gc --no-quiet' ' | |
ecc08690 DS |
173 | test_terminal env GIT_PROGRESS_DELAY=0 \ |
174 | git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr && | |
6b89a34c ÆAB |
175 | test_must_be_empty stdout && |
176 | test_i18ngrep "Enumerating objects" stderr && | |
177 | test_i18ngrep "Computing commit graph generation numbers" stderr | |
178 | ' | |
179 | ||
180 | test_expect_success 'gc --quiet' ' | |
181 | git -c gc.writeCommitGraph=true gc --quiet >stdout 2>stderr && | |
182 | test_must_be_empty stdout && | |
183 | test_must_be_empty stderr | |
184 | ' | |
185 | ||
bf3d70fe ÆAB |
186 | test_expect_success 'gc.reflogExpire{Unreachable,}=never skips "expire" via "gc"' ' |
187 | test_config gc.reflogExpire never && | |
188 | test_config gc.reflogExpireUnreachable never && | |
189 | ||
190 | GIT_TRACE=$(pwd)/trace.out git gc && | |
191 | ||
192 | # Check that git-pack-refs is run as a sanity check (done via | |
193 | # gc_before_repack()) but that git-expire is not. | |
194 | grep -E "^trace: (built-in|exec|run_command): git pack-refs --" trace.out && | |
195 | ! grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out | |
196 | ' | |
197 | ||
198 | test_expect_success 'one of gc.reflogExpire{Unreachable,}=never does not skip "expire" via "gc"' ' | |
199 | >trace.out && | |
200 | test_config gc.reflogExpire never && | |
201 | GIT_TRACE=$(pwd)/trace.out git gc && | |
202 | grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out | |
203 | ' | |
204 | ||
12253ab6 ES |
205 | prepare_cruft_history () { |
206 | test_commit base && | |
207 | ||
208 | test_commit --no-tag foo && | |
209 | test_commit --no-tag bar && | |
210 | git reset HEAD^^ | |
211 | } | |
212 | ||
c6955928 ES |
213 | assert_no_cruft_packs () { |
214 | find .git/objects/pack -name "*.mtimes" >mtimes && | |
215 | test_must_be_empty mtimes | |
216 | } | |
217 | ||
50685e0e | 218 | for argv in \ |
e3e24de1 | 219 | "gc" \ |
50685e0e | 220 | "-c gc.cruftPacks=true gc" \ |
e3e24de1 | 221 | "-c gc.cruftPacks=false gc --cruft" |
50685e0e TB |
222 | do |
223 | test_expect_success "git $argv generates a cruft pack" ' | |
224 | test_when_finished "rm -fr repo" && | |
225 | git init repo && | |
226 | ( | |
227 | cd repo && | |
228 | ||
229 | prepare_cruft_history && | |
230 | git $argv && | |
231 | ||
232 | find .git/objects/pack -name "*.mtimes" >mtimes && | |
233 | sed -e 's/\.mtimes$/\.pack/g' mtimes >packs && | |
234 | ||
235 | test_file_not_empty packs && | |
236 | while read pack | |
237 | do | |
238 | test_path_is_file "$pack" || return 1 | |
239 | done <packs | |
240 | ) | |
241 | ' | |
242 | done | |
243 | ||
244 | for argv in \ | |
e3e24de1 | 245 | "gc --no-cruft" \ |
b9061bc6 | 246 | "-c gc.cruftPacks=false gc" \ |
e3e24de1 | 247 | "-c gc.cruftPacks=true gc --no-cruft" |
50685e0e TB |
248 | do |
249 | test_expect_success "git $argv does not generate a cruft pack" ' | |
250 | test_when_finished "rm -fr repo" && | |
251 | git init repo && | |
252 | ( | |
253 | cd repo && | |
254 | ||
255 | prepare_cruft_history && | |
256 | git $argv && | |
257 | ||
258 | assert_no_cruft_packs | |
259 | ) | |
260 | ' | |
261 | done | |
c6955928 | 262 | |
05b9013b TB |
263 | test_expect_success '--keep-largest-pack ignores cruft packs' ' |
264 | test_when_finished "rm -fr repo" && | |
265 | git init repo && | |
266 | ( | |
267 | cd repo && | |
268 | ||
269 | # Generate a pack for reachable objects (of which there | |
270 | # are 3), and one for unreachable objects (of which | |
271 | # there are 6). | |
272 | prepare_cruft_history && | |
273 | git gc --cruft && | |
274 | ||
275 | mtimes="$(find .git/objects/pack -type f -name "pack-*.mtimes")" && | |
276 | sz="$(test_file_size "${mtimes%.mtimes}.pack")" && | |
277 | ||
278 | # Ensure that the cruft pack gets removed (due to | |
279 | # `--prune=now`) despite it being the largest pack. | |
280 | git -c gc.bigPackThreshold=$sz gc --cruft --prune=now && | |
281 | ||
282 | assert_no_cruft_packs | |
283 | ) | |
284 | ' | |
285 | ||
286 | test_expect_success 'gc.bigPackThreshold ignores cruft packs' ' | |
287 | test_when_finished "rm -fr repo" && | |
288 | git init repo && | |
289 | ( | |
290 | cd repo && | |
291 | ||
292 | # Generate a pack for reachable objects (of which there | |
293 | # are 3), and one for unreachable objects (of which | |
294 | # there are 6). | |
295 | prepare_cruft_history && | |
296 | git gc --cruft && | |
297 | ||
298 | # Ensure that the cruft pack gets removed (due to | |
299 | # `--prune=now`) despite it being the largest pack. | |
300 | git gc --cruft --prune=now --keep-largest-pack && | |
301 | ||
302 | assert_no_cruft_packs | |
303 | ) | |
304 | ' | |
305 | ||
ef09036c SG |
306 | run_and_wait_for_auto_gc () { |
307 | # We read stdout from gc for the side effect of waiting until the | |
308 | # background gc process exits, closing its fd 9. Furthermore, the | |
309 | # variable assignment from a command substitution preserves the | |
310 | # exit status of the main gc process. | |
311 | # Note: this fd trickery doesn't work on Windows, but there is no | |
312 | # need to, because on Win the auto gc always runs in the foreground. | |
313 | doesnt_matter=$(git gc --auto 9>&1) | |
314 | } | |
315 | ||
a831c06a DT |
316 | test_expect_success 'background auto gc does not run if gc.log is present and recent but does if it is old' ' |
317 | test_commit foo && | |
318 | test_commit bar && | |
319 | git repack && | |
320 | test_config gc.autopacklimit 1 && | |
321 | test_config gc.autodetach true && | |
322 | echo fleem >.git/gc.log && | |
30299702 JN |
323 | git gc --auto 2>err && |
324 | test_i18ngrep "^warning:" err && | |
a831c06a | 325 | test_config gc.logexpiry 5.days && |
0e496492 | 326 | test-tool chmtime =-345600 .git/gc.log && |
30299702 | 327 | git gc --auto && |
a831c06a | 328 | test_config gc.logexpiry 2.days && |
ef09036c SG |
329 | run_and_wait_for_auto_gc && |
330 | ls .git/objects/pack/pack-*.pack >packs && | |
331 | test_line_count = 1 packs | |
a831c06a | 332 | ' |
bdf56de8 | 333 | |
c45af94d JK |
334 | test_expect_success 'background auto gc respects lock for all operations' ' |
335 | # make sure we run a background auto-gc | |
336 | test_commit make-pack && | |
337 | git repack && | |
338 | test_config gc.autopacklimit 1 && | |
339 | test_config gc.autodetach true && | |
340 | ||
341 | # create a ref whose loose presence we can use to detect a pack-refs run | |
342 | git update-ref refs/heads/should-be-loose HEAD && | |
f95661b7 | 343 | (ls -1 .git/refs/heads .git/reftable >expect || true) && |
c45af94d JK |
344 | |
345 | # now fake a concurrent gc that holds the lock; we can use our | |
346 | # shell pid so that it looks valid. | |
347 | hostname=$(hostname || echo unknown) && | |
c871fbee JS |
348 | shell_pid=$$ && |
349 | if test_have_prereq MINGW && test -f /proc/$shell_pid/winpid | |
350 | then | |
351 | # In Git for Windows, Bash (actually, the MSYS2 runtime) has a | |
352 | # different idea of PIDs than git.exe (actually Windows). Use | |
353 | # the Windows PID in this case. | |
354 | shell_pid=$(cat /proc/$shell_pid/winpid) | |
355 | fi && | |
356 | printf "%d %s" "$shell_pid" "$hostname" >.git/gc.pid && | |
c45af94d JK |
357 | |
358 | # our gc should exit zero without doing anything | |
359 | run_and_wait_for_auto_gc && | |
f95661b7 HWN |
360 | (ls -1 .git/refs/heads .git/reftable >actual || true) && |
361 | test_cmp expect actual | |
c45af94d JK |
362 | ' |
363 | ||
ef09036c SG |
364 | # DO NOT leave a detached auto gc process running near the end of the |
365 | # test script: it can run long enough in the background to racily | |
366 | # interfere with the cleanup in 'test_done'. | |
367 | ||
0c8151b6 | 368 | test_done |