t/t1410-reflog.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2007 Junio C Hamano
   4 #
   5
   6 test_description='Test prune and reflog expiration'
   7 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   8 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   9
  10 TEST_PASSES_SANITIZE_LEAK=true
  11 . ./test-lib.sh
  12
  13 check_have () {
  14         gaah= &&
  15         for N in "$@"
  16         do
  17                 eval "o=\$$N" && git cat-file -t $o || {
  18                         echo Gaah $N
  19                         gaah=$N
  20                         break
  21                 }
  22         done &&
  23         test -z "$gaah"
  24 }
  25
  26 check_fsck () {
  27         git fsck --full >fsck.output
  28         case "$1" in
  29         '')
  30                 test_must_be_empty fsck.output ;;
  31         *)
  32                 test_grep "$1" fsck.output ;;
  33         esac
  34 }
  35
  36 corrupt () {
  37         mv .git/objects/$(test_oid_to_path $1) .git/$1
  38 }
  39
  40 recover () {
  41         aa=$(echo $1 | cut -c 1-2)
  42         mkdir -p .git/objects/$aa
  43         mv .git/$1 .git/objects/$(test_oid_to_path $1)
  44 }
  45
  46 check_dont_have () {
  47         gaah= &&
  48         for N in "$@"
  49         do
  50                 eval "o=\$$N"
  51                 git cat-file -t $o && {
  52                         echo Gaah $N
  53                         gaah=$N
  54                         break
  55                 }
  56         done
  57         test -z "$gaah"
  58 }
  59
  60 test_expect_success setup '
  61         mkdir -p A/B &&
  62         echo rat >C &&
  63         echo ox >A/D &&
  64         echo tiger >A/B/E &&
  65         git add . &&
  66
  67         test_tick && git commit -m rabbit &&
  68         H=$(git rev-parse --verify HEAD) &&
  69         A=$(git rev-parse --verify HEAD:A) &&
  70         B=$(git rev-parse --verify HEAD:A/B) &&
  71         C=$(git rev-parse --verify HEAD:C) &&
  72         D=$(git rev-parse --verify HEAD:A/D) &&
  73         E=$(git rev-parse --verify HEAD:A/B/E) &&
  74         check_fsck &&
  75
  76         test_chmod +x C &&
  77         git add C &&
  78         test_tick && git commit -m dragon &&
  79         L=$(git rev-parse --verify HEAD) &&
  80         check_fsck &&
  81
  82         rm -f C A/B/E &&
  83         echo snake >F &&
  84         echo horse >A/G &&
  85         git add F A/G &&
  86         test_tick && git commit -a -m sheep &&
  87         F=$(git rev-parse --verify HEAD:F) &&
  88         G=$(git rev-parse --verify HEAD:A/G) &&
  89         I=$(git rev-parse --verify HEAD:A) &&
  90         J=$(git rev-parse --verify HEAD) &&
  91         check_fsck &&
  92
  93         rm -f A/G &&
  94         test_tick && git commit -a -m monkey &&
  95         K=$(git rev-parse --verify HEAD) &&
  96         check_fsck &&
  97
  98         check_have A B C D E F G H I J K L &&
  99
 100         git prune &&
 101
 102         check_have A B C D E F G H I J K L &&
 103
 104         check_fsck &&
 105
 106         git reflog refs/heads/main >output &&
 107         test_line_count = 4 output
 108 '
 109
 110 test_expect_success 'correct usage on sub-command -h' '
 111         test_expect_code 129 git reflog expire -h >err &&
 112         grep "git reflog expire" err
 113 '
 114
 115 test_expect_success 'correct usage on "git reflog show -h"' '
 116         test_expect_code 129 git reflog show -h >err &&
 117         grep -F "git reflog [show]" err
 118 '
 119
 120 test_expect_success 'pass through -- to sub-command' '
 121         test_when_finished "rm -rf repo" &&
 122         git init repo &&
 123         test_commit -C repo message --a-file contents dash-tag &&
 124
 125         git -C repo reflog show -- --does-not-exist >out &&
 126         test_must_be_empty out &&
 127         git -C repo reflog show >expect &&
 128         git -C repo reflog show -- --a-file >actual &&
 129         test_cmp expect actual
 130 '
 131
 132 test_expect_success rewind '
 133         test_tick && git reset --hard HEAD~2 &&
 134         test -f C &&
 135         test -f A/B/E &&
 136         ! test -f F &&
 137         ! test -f A/G &&
 138
 139         check_have A B C D E F G H I J K L &&
 140
 141         git prune &&
 142
 143         check_have A B C D E F G H I J K L &&
 144
 145         git reflog refs/heads/main >output &&
 146         test_line_count = 5 output
 147 '
 148
 149 test_expect_success 'corrupt and check' '
 150
 151         corrupt $F &&
 152         check_fsck "missing blob $F"
 153
 154 '
 155
 156 test_expect_success 'reflog expire --dry-run should not touch reflog' '
 157
 158         git reflog expire --dry-run \
 159                 --expire=$(($test_tick - 10000)) \
 160                 --expire-unreachable=$(($test_tick - 10000)) \
 161                 --stale-fix \
 162                 --all &&
 163
 164         git reflog refs/heads/main >output &&
 165         test_line_count = 5 output &&
 166
 167         check_fsck "missing blob $F"
 168 '
 169
 170 test_expect_success 'reflog expire' '
 171
 172         git reflog expire --verbose \
 173                 --expire=$(($test_tick - 10000)) \
 174                 --expire-unreachable=$(($test_tick - 10000)) \
 175                 --stale-fix \
 176                 --all &&
 177
 178         git reflog refs/heads/main >output &&
 179         test_line_count = 2 output &&
 180
 181         check_fsck "dangling commit $K"
 182 '
 183
 184 test_expect_success '--stale-fix handles missing objects generously' '
 185         git -c core.logAllRefUpdates=false fast-import --date-format=now <<-EOS &&
 186         commit refs/heads/stale-fix
 187         mark :1
 188         committer Author <a@uth.or> now
 189         data <<EOF
 190         start stale fix
 191         EOF
 192         M 100644 inline file
 193         data <<EOF
 194         contents
 195         EOF
 196         commit refs/heads/stale-fix
 197         committer Author <a@uth.or> now
 198         data <<EOF
 199         stale fix branch tip
 200         EOF
 201         from :1
 202         EOS
 203
 204         parent_oid=$(git rev-parse stale-fix^) &&
 205         test_when_finished "recover $parent_oid" &&
 206         corrupt $parent_oid &&
 207         git reflog expire --stale-fix
 208 '
 209
 210 test_expect_success 'prune and fsck' '
 211
 212         git prune &&
 213         check_fsck &&
 214
 215         check_have A B C D E H L &&
 216         check_dont_have F G I J K
 217
 218 '
 219
 220 test_expect_success 'recover and check' '
 221
 222         recover $F &&
 223         check_fsck "dangling blob $F"
 224
 225 '
 226
 227 test_expect_success 'delete' '
 228         echo 1 > C &&
 229         test_tick &&
 230         git commit -m rat C &&
 231
 232         echo 2 > C &&
 233         test_tick &&
 234         git commit -m ox C &&
 235
 236         echo 3 > C &&
 237         test_tick &&
 238         git commit -m tiger C &&
 239
 240         HEAD_entry_count=$(git reflog | wc -l) &&
 241         main_entry_count=$(git reflog show main | wc -l) &&
 242
 243         test $HEAD_entry_count = 5 &&
 244         test $main_entry_count = 5 &&
 245
 246
 247         git reflog delete main@{1} &&
 248         git reflog show main > output &&
 249         test_line_count = $(($main_entry_count - 1)) output &&
 250         test $HEAD_entry_count = $(git reflog | wc -l) &&
 251         ! grep ox < output &&
 252
 253         main_entry_count=$(wc -l < output) &&
 254
 255         git reflog delete HEAD@{1} &&
 256         test $(($HEAD_entry_count -1)) = $(git reflog | wc -l) &&
 257         test $main_entry_count = $(git reflog show main | wc -l) &&
 258
 259         HEAD_entry_count=$(git reflog | wc -l) &&
 260
 261         git reflog delete main@{07.04.2005.15:15:00.-0700} &&
 262         git reflog show main > output &&
 263         test_line_count = $(($main_entry_count - 1)) output &&
 264         ! grep dragon < output
 265
 266 '
 267
 268 test_expect_success 'rewind2' '
 269
 270         test_tick && git reset --hard HEAD~2 &&
 271         git reflog refs/heads/main >output &&
 272         test_line_count = 4 output
 273 '
 274
 275 test_expect_success '--expire=never' '
 276
 277         git reflog expire --verbose \
 278                 --expire=never \
 279                 --expire-unreachable=never \
 280                 --all &&
 281         git reflog refs/heads/main >output &&
 282         test_line_count = 4 output
 283 '
 284
 285 test_expect_success 'gc.reflogexpire=never' '
 286         test_config gc.reflogexpire never &&
 287         test_config gc.reflogexpireunreachable never &&
 288
 289         git reflog expire --verbose --all >output &&
 290         test_line_count = 9 output &&
 291
 292         git reflog refs/heads/main >output &&
 293         test_line_count = 4 output
 294 '
 295
 296 test_expect_success 'gc.reflogexpire=false' '
 297         test_config gc.reflogexpire false &&
 298         test_config gc.reflogexpireunreachable false &&
 299
 300         git reflog expire --verbose --all &&
 301         git reflog refs/heads/main >output &&
 302         test_line_count = 4 output
 303
 304 '
 305
 306 test_expect_success 'git reflog expire unknown reference' '
 307         test_config gc.reflogexpire never &&
 308         test_config gc.reflogexpireunreachable never &&
 309
 310         test_must_fail git reflog expire main@{123} 2>stderr &&
 311         test_grep "points nowhere" stderr &&
 312         test_must_fail git reflog expire does-not-exist 2>stderr &&
 313         test_grep "points nowhere" stderr
 314 '
 315
 316 test_expect_success 'checkout should not delete log for packed ref' '
 317         test $(git reflog main | wc -l) = 4 &&
 318         git branch foo &&
 319         git pack-refs --all &&
 320         git checkout foo &&
 321         test $(git reflog main | wc -l) = 4
 322 '
 323
 324 test_expect_success 'stale dirs do not cause d/f conflicts (reflogs on)' '
 325         test_when_finished "git branch -d one || git branch -d one/two" &&
 326
 327         git branch one/two main &&
 328         echo "one/two@{0} branch: Created from main" >expect &&
 329         git log -g --format="%gd %gs" one/two >actual &&
 330         test_cmp expect actual &&
 331         git branch -d one/two &&
 332
 333         # now logs/refs/heads/one is a stale directory, but
 334         # we should move it out of the way to create "one" reflog
 335         git branch one main &&
 336         echo "one@{0} branch: Created from main" >expect &&
 337         git log -g --format="%gd %gs" one >actual &&
 338         test_cmp expect actual
 339 '
 340
 341 test_expect_success 'stale dirs do not cause d/f conflicts (reflogs off)' '
 342         test_when_finished "git branch -d one || git branch -d one/two" &&
 343
 344         git branch one/two main &&
 345         echo "one/two@{0} branch: Created from main" >expect &&
 346         git log -g --format="%gd %gs" one/two >actual &&
 347         test_cmp expect actual &&
 348         git branch -d one/two &&
 349
 350         # same as before, but we only create a reflog for "one" if
 351         # it already exists, which it does not
 352         git -c core.logallrefupdates=false branch one main &&
 353         git log -g --format="%gd %gs" one >actual &&
 354         test_must_be_empty actual
 355 '
 356
 357 # Triggering the bug detected by this test requires a newline to fall
 358 # exactly BUFSIZ-1 bytes from the end of the file. We don't know
 359 # what that value is, since it's platform dependent. However, if
 360 # we choose some value N, we also catch any D which divides N evenly
 361 # (since we will read backwards in chunks of D). So we choose 8K,
 362 # which catches glibc (with an 8K BUFSIZ) and *BSD (1K).
 363 #
 364 # Each line is 114 characters, so we need 75 to still have a few before the
 365 # last 8K. The 89-character padding on the final entry lines up our
 366 # newline exactly.
 367 test_expect_success REFFILES,SHA1 'parsing reverse reflogs at BUFSIZ boundaries' '
 368         git checkout -b reflogskip &&
 369         zf=$(test_oid zero_2) &&
 370         ident="abc <xyz> 0000000001 +0000" &&
 371         for i in $(test_seq 1 75); do
 372                 printf "$zf%02d $zf%02d %s\t" $i $(($i+1)) "$ident" &&
 373                 if test $i = 75; then
 374                         for j in $(test_seq 1 89); do
 375                                 printf X || return 1
 376                         done
 377                 else
 378                         printf X
 379                 fi &&
 380                 printf "\n" || return 1
 381         done >.git/logs/refs/heads/reflogskip &&
 382         git rev-parse reflogskip@{73} >actual &&
 383         echo ${zf}03 >expect &&
 384         test_cmp expect actual
 385 '
 386
 387 test_expect_success 'no segfaults for reflog containing non-commit sha1s' '
 388         git update-ref --create-reflog -m "Creating ref" \
 389                 refs/tests/tree-in-reflog HEAD &&
 390         git update-ref -m "Forcing tree" refs/tests/tree-in-reflog HEAD^{tree} &&
 391         git update-ref -m "Restoring to commit" refs/tests/tree-in-reflog HEAD &&
 392         git reflog refs/tests/tree-in-reflog
 393 '
 394
 395 test_expect_failure 'reflog with non-commit entries displays all entries' '
 396         git reflog refs/tests/tree-in-reflog >actual &&
 397         test_line_count = 3 actual
 398 '
 399
 400 # This test takes a lock on an individual ref; this is not supported in
 401 # reftable.
 402 test_expect_success REFFILES 'reflog expire operates on symref not referrent' '
 403         git branch --create-reflog the_symref &&
 404         git branch --create-reflog referrent &&
 405         git update-ref referrent HEAD &&
 406         git symbolic-ref refs/heads/the_symref refs/heads/referrent &&
 407         test_when_finished "rm -f .git/refs/heads/referrent.lock" &&
 408         touch .git/refs/heads/referrent.lock &&
 409         git reflog expire --expire=all the_symref
 410 '
 411
 412 test_expect_success 'continue walking past root commits' '
 413         git init orphanage &&
 414         (
 415                 cd orphanage &&
 416                 cat >expect <<-\EOF &&
 417                 HEAD@{0} commit (initial): orphan2-1
 418                 HEAD@{1} commit: orphan1-2
 419                 HEAD@{2} commit (initial): orphan1-1
 420                 HEAD@{3} commit (initial): initial
 421                 EOF
 422                 test_commit initial &&
 423                 git checkout --orphan orphan1 &&
 424                 test_commit orphan1-1 &&
 425                 test_commit orphan1-2 &&
 426                 git checkout --orphan orphan2 &&
 427                 test_commit orphan2-1 &&
 428                 git log -g --format="%gd %gs" >actual &&
 429                 test_cmp expect actual
 430         )
 431 '
 432
 433 test_expect_success 'expire with multiple worktrees' '
 434         git init main-wt &&
 435         (
 436                 cd main-wt &&
 437                 test_tick &&
 438                 test_commit foo &&
 439                 git  worktree add link-wt &&
 440                 test_tick &&
 441                 test_commit -C link-wt foobar &&
 442                 test_tick &&
 443                 git reflog expire --verbose --all --expire=$test_tick &&
 444                 test-tool ref-store worktree:link-wt for-each-reflog-ent HEAD >actual &&
 445                 test_must_be_empty actual
 446         )
 447 '
 448
 449 test_expect_success 'expire one of multiple worktrees' '
 450         git init main-wt2 &&
 451         (
 452                 cd main-wt2 &&
 453                 test_tick &&
 454                 test_commit foo &&
 455                 git worktree add link-wt &&
 456                 test_tick &&
 457                 test_commit -C link-wt foobar &&
 458                 test_tick &&
 459                 test-tool ref-store worktree:link-wt for-each-reflog-ent HEAD \
 460                         >expect-link-wt &&
 461                 git reflog expire --verbose --all --expire=$test_tick \
 462                         --single-worktree &&
 463                 test-tool ref-store worktree:main for-each-reflog-ent HEAD \
 464                         >actual-main &&
 465                 test-tool ref-store worktree:link-wt for-each-reflog-ent HEAD \
 466                         >actual-link-wt &&
 467                 test_must_be_empty actual-main &&
 468                 test_cmp expect-link-wt actual-link-wt
 469         )
 470 '
 471
 472 test_expect_success REFFILES 'empty reflog' '
 473         test_when_finished "rm -rf empty" &&
 474         git init empty &&
 475         test_commit -C empty A &&
 476         >empty/.git/logs/refs/heads/foo &&
 477         git -C empty reflog expire --all 2>err &&
 478         test_must_be_empty err
 479 '
 480
 481 test_done