3 test_description
='basic git gc tests
7 .
"$TEST_DIRECTORY"/lib-terminal.sh
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
13 git config gc.bigPackThreshold 2g
16 test_expect_success
'gc empty repository' '
20 test_expect_success
'gc does not leave behind pid file' '
22 test_path_is_missing .git/gc.pid
25 test_expect_success
'gc --gobbledegook' '
26 test_expect_code 129 git gc --nonsense 2>err &&
27 test_i18ngrep "[Uu]sage: git gc" err
30 test_expect_success
'gc -h with invalid configuration' '
35 echo "[gc] pruneexpire = CORRUPT" >>.git/config &&
36 test_expect_code 129 git gc -h >usage 2>&1
38 test_i18ngrep "[Uu]sage" broken/usage
41 test_expect_success
'gc is not aborted due to a stale symref' '
45 test_commit initial &&
46 git clone . ../client &&
47 git branch -m develop &&
54 test_expect_success
'gc --keep-largest-pack' '
55 test_create_repo keep-pack &&
62 ( cd .git/objects/pack && ls *.pack ) >pack-list &&
63 test_line_count = 1 pack-list &&
64 BASE_PACK=.git/objects/pack/pack-*.pack &&
69 ( cd .git/objects/pack && ls *.pack ) >pack-list &&
70 test_line_count = 3 pack-list &&
71 git gc --keep-largest-pack &&
72 ( cd .git/objects/pack && ls *.pack ) >pack-list &&
73 test_line_count = 2 pack-list &&
74 awk "/^P /{print \$2}" <.git/objects/info/packs >pack-info &&
75 test_line_count = 2 pack-info &&
76 test_path_is_file $BASE_PACK &&
81 test_expect_success
'auto gc with too many loose objects does not attempt to create bitmaps' '
82 test_config gc.auto 3 &&
83 test_config gc.autodetach false &&
84 test_config pack.writebitmaps true &&
85 # We need to create two object whose sha1s start with 17
86 # since this is what git gc counts. As it happens, these
87 # two blobs will do so.
90 # Our first gc will create a pack; our second will create a second pack
92 ls .git/objects/pack | sort >existing_packs &&
96 git gc --auto 2>err &&
97 test_i18ngrep ! "^warning:" err &&
98 ls .git/objects/pack/ | sort >post_packs &&
99 comm -1 -3 existing_packs post_packs >new &&
100 comm -2 -3 existing_packs post_packs >del &&
101 test_line_count = 0 del && # No packs are deleted
102 test_line_count = 2 new # There is one new pack and its .idx
105 test_expect_success
'gc --no-quiet' '
106 GIT_PROGRESS_DELAY=0 git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr &&
107 test_must_be_empty stdout &&
108 test_i18ngrep "Computing commit graph generation numbers" stderr
111 test_expect_success TTY
'with TTY: gc --no-quiet' '
112 test_terminal git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr &&
113 test_must_be_empty stdout &&
114 test_i18ngrep "Enumerating objects" stderr &&
115 test_i18ngrep "Computing commit graph generation numbers" stderr
118 test_expect_success
'gc --quiet' '
119 git -c gc.writeCommitGraph=true gc --quiet >stdout 2>stderr &&
120 test_must_be_empty stdout &&
121 test_must_be_empty stderr
124 test_expect_success
'gc.reflogExpire{Unreachable,}=never skips "expire" via "gc"' '
125 test_config gc.reflogExpire never &&
126 test_config gc.reflogExpireUnreachable never &&
128 GIT_TRACE=$(pwd)/trace.out git gc &&
130 # Check that git-pack-refs is run as a sanity check (done via
131 # gc_before_repack()) but that git-expire is not.
132 grep -E "^trace: (built-in|exec|run_command): git pack-refs --" trace.out &&
133 ! grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out
136 test_expect_success
'one of gc.reflogExpire{Unreachable,}=never does not skip "expire" via "gc"' '
138 test_config gc.reflogExpire never &&
139 GIT_TRACE=$(pwd)/trace.out git gc &&
140 grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out
143 run_and_wait_for_auto_gc
() {
144 # We read stdout from gc for the side effect of waiting until the
145 # background gc process exits, closing its fd 9. Furthermore, the
146 # variable assignment from a command substitution preserves the
147 # exit status of the main gc process.
148 # Note: this fd trickery doesn't work on Windows, but there is no
149 # need to, because on Win the auto gc always runs in the foreground.
150 doesnt_matter
=$
(git gc
--auto 9>&1)
153 test_expect_success
'background auto gc does not run if gc.log is present and recent but does if it is old' '
157 test_config gc.autopacklimit 1 &&
158 test_config gc.autodetach true &&
159 echo fleem >.git/gc.log &&
160 git gc --auto 2>err &&
161 test_i18ngrep "^warning:" err &&
162 test_config gc.logexpiry 5.days &&
163 test-tool chmtime =-345600 .git/gc.log &&
165 test_config gc.logexpiry 2.days &&
166 run_and_wait_for_auto_gc &&
167 ls .git/objects/pack/pack-*.pack >packs &&
168 test_line_count = 1 packs
171 test_expect_success
'background auto gc respects lock for all operations' '
172 # make sure we run a background auto-gc
173 test_commit make-pack &&
175 test_config gc.autopacklimit 1 &&
176 test_config gc.autodetach true &&
178 # create a ref whose loose presence we can use to detect a pack-refs run
179 git update-ref refs/heads/should-be-loose HEAD &&
180 test_path_is_file .git/refs/heads/should-be-loose &&
182 # now fake a concurrent gc that holds the lock; we can use our
183 # shell pid so that it looks valid.
184 hostname=$(hostname || echo unknown) &&
186 if test_have_prereq MINGW && test -f /proc/$shell_pid/winpid
188 # In Git for Windows, Bash (actually, the MSYS2 runtime) has a
189 # different idea of PIDs than git.exe (actually Windows). Use
190 # the Windows PID in this case.
191 shell_pid=$(cat /proc/$shell_pid/winpid)
193 printf "%d %s" "$shell_pid" "$hostname" >.git/gc.pid &&
195 # our gc should exit zero without doing anything
196 run_and_wait_for_auto_gc &&
197 test_path_is_file .git/refs/heads/should-be-loose
200 # DO NOT leave a detached auto gc process running near the end of the
201 # test script: it can run long enough in the background to racily
202 # interfere with the cleanup in 'test_done'.