| 1 | #!/bin/sh |
| 2 | |
| 3 | test_description='basic git gc tests |
| 4 | ' |
| 5 | |
| 6 | . ./test-lib.sh |
| 7 | . "$TEST_DIRECTORY"/lib-terminal.sh |
| 8 | |
| 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 |
| 13 | git config gc.bigPackThreshold 2g && |
| 14 | git config set --global maintenance.strategy gc && |
| 15 | test_oid_init |
| 16 | ' |
| 17 | |
| 18 | test_expect_success 'gc empty repository' ' |
| 19 | git gc |
| 20 | ' |
| 21 | |
| 22 | test_expect_success 'gc does not leave behind pid file' ' |
| 23 | git gc && |
| 24 | test_path_is_missing .git/gc.pid |
| 25 | ' |
| 26 | |
| 27 | test_expect_success 'gc --gobbledegook' ' |
| 28 | test_expect_code 129 git gc --nonsense 2>err && |
| 29 | test_grep "[Uu]sage: git gc" err |
| 30 | ' |
| 31 | |
| 32 | test_expect_success 'gc -h with invalid configuration' ' |
| 33 | mkdir broken && |
| 34 | ( |
| 35 | cd broken && |
| 36 | git init && |
| 37 | echo "[gc] pruneexpire = CORRUPT" >>.git/config && |
| 38 | git gc -h >usage 2>&1 |
| 39 | ) && |
| 40 | test_grep "[Uu]sage" broken/usage |
| 41 | ' |
| 42 | |
| 43 | test_expect_success 'gc is not aborted due to a stale symref' ' |
| 44 | git init remote && |
| 45 | ( |
| 46 | cd remote && |
| 47 | test_commit initial && |
| 48 | git clone . ../client && |
| 49 | git branch -m develop && |
| 50 | cd ../client && |
| 51 | git fetch --prune && |
| 52 | git gc |
| 53 | ) |
| 54 | ' |
| 55 | |
| 56 | test_expect_success 'gc --keep-largest-pack' ' |
| 57 | test_create_repo keep-pack && |
| 58 | ( |
| 59 | cd keep-pack && |
| 60 | test_commit one && |
| 61 | test_commit two && |
| 62 | test_commit three && |
| 63 | git gc && |
| 64 | ( cd .git/objects/pack && ls *.pack ) >pack-list && |
| 65 | test_line_count = 1 pack-list && |
| 66 | cp pack-list base-pack-list && |
| 67 | test_commit four && |
| 68 | git repack -d && |
| 69 | test_commit five && |
| 70 | git repack -d && |
| 71 | ( cd .git/objects/pack && ls *.pack ) >pack-list && |
| 72 | test_line_count = 3 pack-list && |
| 73 | git gc --keep-largest-pack && |
| 74 | ( cd .git/objects/pack && ls *.pack ) >pack-list && |
| 75 | test_line_count = 2 pack-list && |
| 76 | awk "/^P /{print \$2}" <.git/objects/info/packs >pack-info && |
| 77 | test_line_count = 2 pack-info && |
| 78 | test_path_is_file .git/objects/pack/$(cat base-pack-list) && |
| 79 | git fsck |
| 80 | ) |
| 81 | ' |
| 82 | |
| 83 | test_expect_success 'pre-auto-gc hook can stop auto gc' ' |
| 84 | cat >err.expect <<-\EOF && |
| 85 | no gc for you |
| 86 | EOF |
| 87 | |
| 88 | git init pre-auto-gc-hook && |
| 89 | test_hook -C pre-auto-gc-hook pre-auto-gc <<-\EOF && |
| 90 | echo >&2 no gc for you && |
| 91 | exit 1 |
| 92 | EOF |
| 93 | ( |
| 94 | cd pre-auto-gc-hook && |
| 95 | |
| 96 | git config gc.auto 3 && |
| 97 | git config gc.autoDetach false && |
| 98 | |
| 99 | # We need to create two object whose sha1s start with 17 |
| 100 | # since this is what git gc counts. As it happens, these |
| 101 | # two blobs will do so. |
| 102 | test_commit "$(test_oid blob17_1)" && |
| 103 | test_commit "$(test_oid blob17_2)" && |
| 104 | |
| 105 | git gc --auto >../out.actual 2>../err.actual |
| 106 | ) && |
| 107 | test_must_be_empty out.actual && |
| 108 | test_cmp err.expect err.actual && |
| 109 | |
| 110 | cat >err.expect <<-\EOF && |
| 111 | will gc for you |
| 112 | Auto packing the repository for optimum performance. |
| 113 | See "git help gc" for manual housekeeping. |
| 114 | EOF |
| 115 | |
| 116 | test_hook -C pre-auto-gc-hook --clobber pre-auto-gc <<-\EOF && |
| 117 | echo >&2 will gc for you && |
| 118 | exit 0 |
| 119 | EOF |
| 120 | |
| 121 | git -C pre-auto-gc-hook gc --auto >out.actual 2>err.actual && |
| 122 | |
| 123 | test_must_be_empty out.actual && |
| 124 | test_cmp err.expect err.actual |
| 125 | ' |
| 126 | |
| 127 | test_expect_success 'auto gc with too many loose objects does not attempt to create bitmaps' ' |
| 128 | test_config gc.auto 3 && |
| 129 | test_config gc.autodetach false && |
| 130 | test_config pack.writebitmaps true && |
| 131 | # We need to create two object whose sha1s start with 17 |
| 132 | # since this is what git gc counts. As it happens, these |
| 133 | # two blobs will do so. |
| 134 | test_commit "$(test_oid blob17_1)" && |
| 135 | test_commit "$(test_oid blob17_2)" && |
| 136 | # Our first gc will create a pack; our second will create a second pack |
| 137 | git gc --auto && |
| 138 | ls .git/objects/pack/pack-*.pack | sort >existing_packs && |
| 139 | test_commit "$(test_oid blob17_3)" && |
| 140 | test_commit "$(test_oid blob17_4)" && |
| 141 | |
| 142 | git gc --auto 2>err && |
| 143 | test_grep ! "^warning:" err && |
| 144 | ls .git/objects/pack/pack-*.pack | sort >post_packs && |
| 145 | comm -1 -3 existing_packs post_packs >new && |
| 146 | comm -2 -3 existing_packs post_packs >del && |
| 147 | test_line_count = 0 del && # No packs are deleted |
| 148 | test_line_count = 1 new # There is one new pack |
| 149 | ' |
| 150 | |
| 151 | test_expect_success 'gc --no-quiet' ' |
| 152 | GIT_PROGRESS_DELAY=0 git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr && |
| 153 | test_must_be_empty stdout && |
| 154 | test_grep "Computing commit graph generation numbers" stderr |
| 155 | ' |
| 156 | |
| 157 | test_expect_success TTY 'with TTY: gc --no-quiet' ' |
| 158 | test_terminal env GIT_PROGRESS_DELAY=0 \ |
| 159 | git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr && |
| 160 | test_must_be_empty stdout && |
| 161 | test_grep "Enumerating objects" stderr && |
| 162 | test_grep "Computing commit graph generation numbers: 100% (4/4), done." stderr |
| 163 | ' |
| 164 | |
| 165 | test_expect_success 'gc --quiet' ' |
| 166 | git -c gc.writeCommitGraph=true gc --quiet >stdout 2>stderr && |
| 167 | test_must_be_empty stdout && |
| 168 | test_must_be_empty stderr |
| 169 | ' |
| 170 | |
| 171 | test_expect_success 'gc.reflogExpire{Unreachable,}=never skips "expire" via "gc"' ' |
| 172 | test_config gc.reflogExpire never && |
| 173 | test_config gc.reflogExpireUnreachable never && |
| 174 | |
| 175 | GIT_TRACE=$(pwd)/trace.out git gc && |
| 176 | |
| 177 | # Check that git-pack-refs is run as a sanity check (done via |
| 178 | # gc_before_repack()) but that git-expire is not. |
| 179 | test_grep -E "^trace: (built-in|exec|run_command): git pack-refs --" trace.out && |
| 180 | test_grep ! -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out |
| 181 | ' |
| 182 | |
| 183 | test_expect_success 'one of gc.reflogExpire{Unreachable,}=never does not skip "expire" via "gc"' ' |
| 184 | >trace.out && |
| 185 | test_config gc.reflogExpire never && |
| 186 | GIT_TRACE=$(pwd)/trace.out git gc && |
| 187 | test_grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out |
| 188 | ' |
| 189 | |
| 190 | test_expect_success 'gc.repackFilter launches repack with a filter' ' |
| 191 | git clone --no-local --bare . bare.git && |
| 192 | |
| 193 | git -C bare.git -c gc.cruftPacks=false gc && |
| 194 | test_stdout_line_count = 1 ls bare.git/objects/pack/*.pack && |
| 195 | |
| 196 | GIT_TRACE=$(pwd)/trace.out git -C bare.git -c gc.repackFilter=blob:none \ |
| 197 | -c repack.writeBitmaps=false -c gc.cruftPacks=false gc && |
| 198 | test_stdout_line_count = 2 ls bare.git/objects/pack/*.pack && |
| 199 | test_grep -E "^trace: (built-in|exec|run_command): git repack .* --filter=blob:none ?.*" trace.out |
| 200 | ' |
| 201 | |
| 202 | test_expect_success 'gc.repackFilterTo store filtered out objects' ' |
| 203 | test_when_finished "rm -rf bare.git filtered.git" && |
| 204 | |
| 205 | git init --bare filtered.git && |
| 206 | git -C bare.git -c gc.repackFilter=blob:none \ |
| 207 | -c gc.repackFilterTo=../filtered.git/objects/pack/pack \ |
| 208 | -c repack.writeBitmaps=false -c gc.cruftPacks=false gc && |
| 209 | |
| 210 | test_stdout_line_count = 1 ls bare.git/objects/pack/*.pack && |
| 211 | test_stdout_line_count = 1 ls filtered.git/objects/pack/*.pack |
| 212 | ' |
| 213 | |
| 214 | prepare_cruft_history () { |
| 215 | test_commit base && |
| 216 | |
| 217 | test_commit --no-tag foo && |
| 218 | test_commit --no-tag bar && |
| 219 | git reset HEAD^^ |
| 220 | } |
| 221 | |
| 222 | assert_no_cruft_packs () { |
| 223 | find .git/objects/pack -name "*.mtimes" >mtimes && |
| 224 | test_must_be_empty mtimes |
| 225 | } |
| 226 | |
| 227 | for argv in \ |
| 228 | "gc" \ |
| 229 | "-c gc.cruftPacks=true gc" \ |
| 230 | "-c gc.cruftPacks=false gc --cruft" |
| 231 | do |
| 232 | test_expect_success "git $argv generates a cruft pack" ' |
| 233 | test_when_finished "rm -fr repo" && |
| 234 | git init repo && |
| 235 | ( |
| 236 | cd repo && |
| 237 | |
| 238 | prepare_cruft_history && |
| 239 | git $argv && |
| 240 | |
| 241 | find .git/objects/pack -name "*.mtimes" >mtimes && |
| 242 | sed -e 's/\.mtimes$/\.pack/g' mtimes >packs && |
| 243 | |
| 244 | test_file_not_empty packs && |
| 245 | while read pack |
| 246 | do |
| 247 | test_path_is_file "$pack" || return 1 |
| 248 | done <packs |
| 249 | ) |
| 250 | ' |
| 251 | done |
| 252 | |
| 253 | for argv in \ |
| 254 | "gc --no-cruft" \ |
| 255 | "-c gc.cruftPacks=false gc" \ |
| 256 | "-c gc.cruftPacks=true gc --no-cruft" |
| 257 | do |
| 258 | test_expect_success "git $argv does not generate a cruft pack" ' |
| 259 | test_when_finished "rm -fr repo" && |
| 260 | git init repo && |
| 261 | ( |
| 262 | cd repo && |
| 263 | |
| 264 | prepare_cruft_history && |
| 265 | git $argv && |
| 266 | |
| 267 | assert_no_cruft_packs |
| 268 | ) |
| 269 | ' |
| 270 | done |
| 271 | |
| 272 | test_expect_success '--keep-largest-pack ignores cruft packs' ' |
| 273 | test_when_finished "rm -fr repo" && |
| 274 | git init repo && |
| 275 | ( |
| 276 | cd repo && |
| 277 | |
| 278 | # Generate a pack for reachable objects (of which there |
| 279 | # are 3), and one for unreachable objects (of which |
| 280 | # there are 6). |
| 281 | prepare_cruft_history && |
| 282 | git gc --cruft && |
| 283 | |
| 284 | mtimes="$(find .git/objects/pack -type f -name "pack-*.mtimes")" && |
| 285 | sz="$(test_file_size "${mtimes%.mtimes}.pack")" && |
| 286 | |
| 287 | # Ensure that the cruft pack gets removed (due to |
| 288 | # `--prune=now`) despite it being the largest pack. |
| 289 | git -c gc.bigPackThreshold=$sz gc --cruft --prune=now && |
| 290 | |
| 291 | assert_no_cruft_packs |
| 292 | ) |
| 293 | ' |
| 294 | |
| 295 | test_expect_success 'gc.bigPackThreshold ignores cruft packs' ' |
| 296 | test_when_finished "rm -fr repo" && |
| 297 | git init repo && |
| 298 | ( |
| 299 | cd repo && |
| 300 | |
| 301 | # Generate a pack for reachable objects (of which there |
| 302 | # are 3), and one for unreachable objects (of which |
| 303 | # there are 6). |
| 304 | prepare_cruft_history && |
| 305 | git gc --cruft && |
| 306 | |
| 307 | # Ensure that the cruft pack gets removed (due to |
| 308 | # `--prune=now`) despite it being the largest pack. |
| 309 | git gc --cruft --prune=now --keep-largest-pack && |
| 310 | |
| 311 | assert_no_cruft_packs |
| 312 | ) |
| 313 | ' |
| 314 | |
| 315 | cruft_max_size_opts="git repack -d -l --cruft --cruft-expiration=2.weeks.ago" |
| 316 | |
| 317 | test_expect_success 'setup for --max-cruft-size tests' ' |
| 318 | git init cruft--max-size && |
| 319 | ( |
| 320 | cd cruft--max-size && |
| 321 | prepare_cruft_history |
| 322 | ) |
| 323 | ' |
| 324 | |
| 325 | test_expect_success '--max-cruft-size sets appropriate repack options' ' |
| 326 | GIT_TRACE2_EVENT=$(pwd)/trace2.txt git -C cruft--max-size \ |
| 327 | gc --cruft --max-cruft-size=1M && |
| 328 | test_subcommand $cruft_max_size_opts --max-cruft-size=1048576 <trace2.txt |
| 329 | ' |
| 330 | |
| 331 | test_expect_success 'gc.maxCruftSize sets appropriate repack options' ' |
| 332 | GIT_TRACE2_EVENT=$(pwd)/trace2.txt \ |
| 333 | git -C cruft--max-size -c gc.maxCruftSize=2M gc --cruft && |
| 334 | test_subcommand $cruft_max_size_opts --max-cruft-size=2097152 <trace2.txt && |
| 335 | |
| 336 | GIT_TRACE2_EVENT=$(pwd)/trace2.txt \ |
| 337 | git -C cruft--max-size -c gc.maxCruftSize=2M gc --cruft \ |
| 338 | --max-cruft-size=3M && |
| 339 | test_subcommand $cruft_max_size_opts --max-cruft-size=3145728 <trace2.txt |
| 340 | ' |
| 341 | |
| 342 | test_expect_success '--expire-to sets repack --expire-to' ' |
| 343 | rm -rf expired && |
| 344 | mkdir expired && |
| 345 | expire_to="$(pwd)/expired/pack" && |
| 346 | GIT_TRACE2_EVENT=$(pwd)/trace2.txt git -C cruft--max-size gc --cruft --expire-to="$expire_to" && |
| 347 | test_subcommand $cruft_max_size_opts --expire-to="$expire_to" <trace2.txt |
| 348 | ' |
| 349 | |
| 350 | test_expect_success '--expire-to with --prune=now sets repack --expire-to' ' |
| 351 | rm -rf expired && |
| 352 | mkdir expired && |
| 353 | expire_to="$(pwd)/expired/pack" && |
| 354 | GIT_TRACE2_EVENT=$(pwd)/trace2.txt git -C cruft--max-size gc --cruft --prune=now --expire-to="$expire_to" && |
| 355 | test_subcommand git repack -d -l --cruft --cruft-expiration=now --expire-to="$expire_to" <trace2.txt |
| 356 | ' |
| 357 | |
| 358 | |
| 359 | test_expect_success '--expire-to with --no-cruft sets repack -A' ' |
| 360 | rm -rf expired && |
| 361 | mkdir expired && |
| 362 | expire_to="$(pwd)/expired/pack" && |
| 363 | GIT_TRACE2_EVENT=$(pwd)/trace2.txt git -C cruft--max-size gc --no-cruft --expire-to="$expire_to" && |
| 364 | test_subcommand git repack -d -l -A --unpack-unreachable=2.weeks.ago <trace2.txt |
| 365 | ' |
| 366 | |
| 367 | test_expect_success '--expire-to with --no-cruft sets repack -a' ' |
| 368 | rm -rf expired && |
| 369 | mkdir expired && |
| 370 | expire_to="$(pwd)/expired/pack" && |
| 371 | GIT_TRACE2_EVENT=$(pwd)/trace2.txt git -C cruft--max-size gc --no-cruft --prune=now --expire-to="$expire_to" && |
| 372 | test_subcommand git repack -d -l -a <trace2.txt |
| 373 | ' |
| 374 | |
| 375 | run_and_wait_for_gc () { |
| 376 | # We read stdout from gc for the side effect of waiting until the |
| 377 | # background gc process exits, closing its fd 9. Furthermore, the |
| 378 | # variable assignment from a command substitution preserves the |
| 379 | # exit status of the main gc process. |
| 380 | # Note: this fd trickery doesn't work on Windows, but there is no |
| 381 | # need to, because on Win the auto gc always runs in the foreground. |
| 382 | doesnt_matter=$(git gc "$@" 9>&1) |
| 383 | } |
| 384 | |
| 385 | test_expect_success 'background auto gc does not run if gc.log is present and recent but does if it is old' ' |
| 386 | test_commit foo && |
| 387 | test_commit bar && |
| 388 | git repack && |
| 389 | test_config gc.autopacklimit 1 && |
| 390 | test_config gc.autodetach true && |
| 391 | echo fleem >.git/gc.log && |
| 392 | git gc --auto 2>err && |
| 393 | test_grep "^warning:" err && |
| 394 | test_config gc.logexpiry 5.days && |
| 395 | test-tool chmtime =-345600 .git/gc.log && |
| 396 | git gc --auto && |
| 397 | test_config gc.logexpiry 2.days && |
| 398 | run_and_wait_for_gc --auto && |
| 399 | ls .git/objects/pack/pack-*.pack >packs && |
| 400 | test_line_count = 1 packs |
| 401 | ' |
| 402 | |
| 403 | test_expect_success 'background auto gc respects lock for all operations' ' |
| 404 | # make sure we run a background auto-gc |
| 405 | test_commit make-pack && |
| 406 | git repack && |
| 407 | test_config gc.autopacklimit 1 && |
| 408 | test_config gc.autodetach true && |
| 409 | |
| 410 | # create a ref whose loose presence we can use to detect a pack-refs run |
| 411 | git update-ref refs/heads/should-be-loose HEAD && |
| 412 | (ls -1 .git/refs/heads .git/reftable >expect || true) && |
| 413 | |
| 414 | # now fake a concurrent gc that holds the lock; we can use our |
| 415 | # shell pid so that it looks valid. |
| 416 | hostname=$(hostname || echo unknown) && |
| 417 | shell_pid=$$ && |
| 418 | if test_have_prereq MINGW && test -f /proc/$shell_pid/winpid |
| 419 | then |
| 420 | # In Git for Windows, Bash (actually, the MSYS2 runtime) has a |
| 421 | # different idea of PIDs than git.exe (actually Windows). Use |
| 422 | # the Windows PID in this case. |
| 423 | shell_pid=$(cat /proc/$shell_pid/winpid) |
| 424 | fi && |
| 425 | printf "%d %s" "$shell_pid" "$hostname" >.git/gc.pid && |
| 426 | |
| 427 | # our gc should exit zero without doing anything |
| 428 | run_and_wait_for_gc --auto && |
| 429 | (ls -1 .git/refs/heads .git/reftable >actual || true) && |
| 430 | test_cmp expect actual |
| 431 | ' |
| 432 | |
| 433 | test_expect_success '--detach overrides gc.autoDetach=false' ' |
| 434 | test_when_finished "rm -rf repo" && |
| 435 | git init repo && |
| 436 | ( |
| 437 | cd repo && |
| 438 | |
| 439 | # Prepare the repository such that git-gc(1) ends up repacking. |
| 440 | test_commit "$(test_oid blob17_1)" && |
| 441 | test_commit "$(test_oid blob17_2)" && |
| 442 | git config gc.autodetach false && |
| 443 | git config gc.auto 2 && |
| 444 | |
| 445 | # Note that we cannot use `test_cmp` here to compare stderr |
| 446 | # because it may contain output from `set -x`. |
| 447 | run_and_wait_for_gc --auto --detach 2>actual && |
| 448 | test_grep "Auto packing the repository in background for optimum performance." actual |
| 449 | ) |
| 450 | ' |
| 451 | |
| 452 | test_expect_success '--no-detach overrides gc.autoDetach=true' ' |
| 453 | test_when_finished "rm -rf repo" && |
| 454 | git init repo && |
| 455 | ( |
| 456 | cd repo && |
| 457 | |
| 458 | # Prepare the repository such that git-gc(1) ends up repacking. |
| 459 | test_commit "$(test_oid blob17_1)" && |
| 460 | test_commit "$(test_oid blob17_2)" && |
| 461 | git config gc.autodetach true && |
| 462 | git config gc.auto 2 && |
| 463 | |
| 464 | GIT_PROGRESS_DELAY=0 git gc --auto --no-detach 2>output && |
| 465 | test_grep "Auto packing the repository for optimum performance." output && |
| 466 | test_grep "Collecting referenced commits: 2, done." output |
| 467 | ) |
| 468 | ' |
| 469 | |
| 470 | # DO NOT leave a detached auto gc process running near the end of the |
| 471 | # test script: it can run long enough in the background to racily |
| 472 | # interfere with the cleanup in 'test_done'. |
| 473 | |
| 474 | test_done |