t/t5304-prune.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2008 Johannes E. Schindelin
   4 #
   5
   6 test_description='prune'
   7 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   8 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   9
  10 . ./test-lib.sh
  11
  12 day=$((60*60*24))
  13 week=$(($day*7))
  14
  15 add_blob() {
  16         before=$(git count-objects | sed "s/ .*//") &&
  17         BLOB=$(echo aleph_0 | git hash-object -w --stdin) &&
  18         BLOB_FILE=.git/objects/$(echo $BLOB | sed "s/^../&\//") &&
  19         verbose test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
  20         test_path_is_file $BLOB_FILE &&
  21         test-tool chmtime =+0 $BLOB_FILE
  22 }
  23
  24 test_expect_success setup '
  25         >file &&
  26         git add file &&
  27         test_tick &&
  28         git commit -m initial &&
  29         git gc
  30 '
  31
  32 test_expect_success 'prune stale packs' '
  33         orig_pack=$(echo .git/objects/pack/*.pack) &&
  34         >.git/objects/tmp_1.pack &&
  35         >.git/objects/tmp_2.pack &&
  36         test-tool chmtime =-86501 .git/objects/tmp_1.pack &&
  37         git prune --expire 1.day &&
  38         test_path_is_file $orig_pack &&
  39         test_path_is_file .git/objects/tmp_2.pack &&
  40         test_path_is_missing .git/objects/tmp_1.pack
  41 '
  42
  43 test_expect_success 'prune --expire' '
  44         add_blob &&
  45         git prune --expire=1.hour.ago &&
  46         verbose test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
  47         test_path_is_file $BLOB_FILE &&
  48         test-tool chmtime =-86500 $BLOB_FILE &&
  49         git prune --expire 1.day &&
  50         verbose test $before = $(git count-objects | sed "s/ .*//") &&
  51         test_path_is_missing $BLOB_FILE
  52 '
  53
  54 test_expect_success 'gc: implicit prune --expire' '
  55         add_blob &&
  56         test-tool chmtime =-$((2*$week-30)) $BLOB_FILE &&
  57         git gc &&
  58         verbose test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
  59         test_path_is_file $BLOB_FILE &&
  60         test-tool chmtime =-$((2*$week+1)) $BLOB_FILE &&
  61         git gc &&
  62         verbose test $before = $(git count-objects | sed "s/ .*//") &&
  63         test_path_is_missing $BLOB_FILE
  64 '
  65
  66 test_expect_success 'gc: refuse to start with invalid gc.pruneExpire' '
  67         git config gc.pruneExpire invalid &&
  68         test_must_fail git gc
  69 '
  70
  71 test_expect_success 'gc: start with ok gc.pruneExpire' '
  72         git config gc.pruneExpire 2.days.ago &&
  73         git gc
  74 '
  75
  76 test_expect_success 'prune: prune nonsense parameters' '
  77         test_must_fail git prune garbage &&
  78         test_must_fail git prune --- &&
  79         test_must_fail git prune --no-such-option
  80 '
  81
  82 test_expect_success 'prune: prune unreachable heads' '
  83         git config core.logAllRefUpdates false &&
  84         >file2 &&
  85         git add file2 &&
  86         git commit -m temporary &&
  87         tmp_head=$(git rev-list -1 HEAD) &&
  88         git reset HEAD^ &&
  89         git reflog expire --all &&
  90         git prune &&
  91         test_must_fail git reset $tmp_head --
  92 '
  93
  94 test_expect_success 'prune: do not prune detached HEAD with no reflog' '
  95         git checkout --detach --quiet &&
  96         git commit --allow-empty -m "detached commit" &&
  97         git reflog expire --all &&
  98         git prune -n >prune_actual &&
  99         test_must_be_empty prune_actual
 100 '
 101
 102 test_expect_success 'prune: prune former HEAD after checking out branch' '
 103         head_oid=$(git rev-parse HEAD) &&
 104         git checkout --quiet main &&
 105         git reflog expire --all &&
 106         git prune -v >prune_actual &&
 107         grep "$head_oid" prune_actual
 108 '
 109
 110 test_expect_success 'prune: do not prune heads listed as an argument' '
 111         >file2 &&
 112         git add file2 &&
 113         git commit -m temporary &&
 114         tmp_head=$(git rev-list -1 HEAD) &&
 115         git reset HEAD^ &&
 116         git prune -- $tmp_head &&
 117         git reset $tmp_head --
 118 '
 119
 120 test_expect_success 'gc --no-prune' '
 121         add_blob &&
 122         test-tool chmtime =-$((5001*$day)) $BLOB_FILE &&
 123         git config gc.pruneExpire 2.days.ago &&
 124         git gc --no-prune &&
 125         verbose test 1 = $(git count-objects | sed "s/ .*//") &&
 126         test_path_is_file $BLOB_FILE
 127 '
 128
 129 test_expect_success 'gc respects gc.pruneExpire' '
 130         git config gc.pruneExpire 5002.days.ago &&
 131         git gc &&
 132         test_path_is_file $BLOB_FILE &&
 133         git config gc.pruneExpire 5000.days.ago &&
 134         git gc &&
 135         test_path_is_missing $BLOB_FILE
 136 '
 137
 138 test_expect_success 'gc --prune=<date>' '
 139         add_blob &&
 140         test-tool chmtime =-$((5001*$day)) $BLOB_FILE &&
 141         git gc --prune=5002.days.ago &&
 142         test_path_is_file $BLOB_FILE &&
 143         git gc --prune=5000.days.ago &&
 144         test_path_is_missing $BLOB_FILE
 145 '
 146
 147 test_expect_success 'gc --prune=never' '
 148         add_blob &&
 149         git gc --prune=never &&
 150         test_path_is_file $BLOB_FILE &&
 151         git gc --prune=now &&
 152         test_path_is_missing $BLOB_FILE
 153 '
 154
 155 test_expect_success 'gc respects gc.pruneExpire=never' '
 156         git config gc.pruneExpire never &&
 157         add_blob &&
 158         git gc &&
 159         test_path_is_file $BLOB_FILE &&
 160         git config gc.pruneExpire now &&
 161         git gc &&
 162         test_path_is_missing $BLOB_FILE
 163 '
 164
 165 test_expect_success 'prune --expire=never' '
 166         add_blob &&
 167         git prune --expire=never &&
 168         test_path_is_file $BLOB_FILE &&
 169         git prune &&
 170         test_path_is_missing $BLOB_FILE
 171 '
 172
 173 test_expect_success 'gc: prune old objects after local clone' '
 174         add_blob &&
 175         test-tool chmtime =-$((2*$week+1)) $BLOB_FILE &&
 176         git clone --no-hardlinks . aclone &&
 177         (
 178                 cd aclone &&
 179                 verbose test 1 = $(git count-objects | sed "s/ .*//") &&
 180                 test_path_is_file $BLOB_FILE &&
 181                 git gc --prune &&
 182                 verbose test 0 = $(git count-objects | sed "s/ .*//") &&
 183                 test_path_is_missing $BLOB_FILE
 184         )
 185 '
 186
 187 test_expect_success 'garbage report in count-objects -v' '
 188         test_when_finished "rm -f .git/objects/pack/fake*" &&
 189         test_when_finished "rm -f .git/objects/pack/foo*" &&
 190         >.git/objects/pack/foo &&
 191         >.git/objects/pack/foo.bar &&
 192         >.git/objects/pack/foo.keep &&
 193         >.git/objects/pack/foo.pack &&
 194         >.git/objects/pack/fake.bar &&
 195         >.git/objects/pack/fake.keep &&
 196         >.git/objects/pack/fake.pack &&
 197         >.git/objects/pack/fake.idx &&
 198         >.git/objects/pack/fake2.keep &&
 199         >.git/objects/pack/fake3.idx &&
 200         git count-objects -v 2>stderr &&
 201         grep "index file .git/objects/pack/fake.idx is too small" stderr &&
 202         grep "^warning:" stderr | sort >actual &&
 203         cat >expected <<\EOF &&
 204 warning: garbage found: .git/objects/pack/fake.bar
 205 warning: garbage found: .git/objects/pack/foo
 206 warning: garbage found: .git/objects/pack/foo.bar
 207 warning: no corresponding .idx or .pack: .git/objects/pack/fake2.keep
 208 warning: no corresponding .idx: .git/objects/pack/foo.keep
 209 warning: no corresponding .idx: .git/objects/pack/foo.pack
 210 warning: no corresponding .pack: .git/objects/pack/fake3.idx
 211 EOF
 212         test_cmp expected actual
 213 '
 214
 215 test_expect_success 'clean pack garbage with gc' '
 216         test_when_finished "rm -f .git/objects/pack/fake*" &&
 217         test_when_finished "rm -f .git/objects/pack/foo*" &&
 218         >.git/objects/pack/foo.keep &&
 219         >.git/objects/pack/foo.pack &&
 220         >.git/objects/pack/fake.idx &&
 221         >.git/objects/pack/fake2.keep &&
 222         >.git/objects/pack/fake2.idx &&
 223         >.git/objects/pack/fake3.keep &&
 224         git gc &&
 225         git count-objects -v 2>stderr &&
 226         grep "^warning:" stderr | sort >actual &&
 227         cat >expected <<\EOF &&
 228 warning: no corresponding .idx or .pack: .git/objects/pack/fake3.keep
 229 warning: no corresponding .idx: .git/objects/pack/foo.keep
 230 warning: no corresponding .idx: .git/objects/pack/foo.pack
 231 EOF
 232         test_cmp expected actual
 233 '
 234
 235 test_expect_success 'prune .git/shallow' '
 236         oid=$(echo hi|git commit-tree HEAD^{tree}) &&
 237         echo $oid >.git/shallow &&
 238         git prune --dry-run >out &&
 239         grep $oid .git/shallow &&
 240         grep $oid out &&
 241         git prune &&
 242         test_path_is_missing .git/shallow
 243 '
 244
 245 test_expect_success 'prune .git/shallow when there are no loose objects' '
 246         oid=$(echo hi|git commit-tree HEAD^{tree}) &&
 247         echo $oid >.git/shallow &&
 248         git update-ref refs/heads/shallow-tip $oid &&
 249         git repack -ad &&
 250         # verify assumption that all loose objects are gone
 251         git count-objects | grep ^0 &&
 252         git prune &&
 253         echo $oid >expect &&
 254         test_cmp expect .git/shallow
 255 '
 256
 257 test_expect_success 'prune: handle alternate object database' '
 258         test_create_repo A &&
 259         git -C A commit --allow-empty -m "initial commit" &&
 260         git clone --shared A B &&
 261         git -C B commit --allow-empty -m "next commit" &&
 262         git -C B prune
 263 '
 264
 265 test_expect_success 'prune: handle index in multiple worktrees' '
 266         git worktree add second-worktree &&
 267         echo "new blob for second-worktree" >second-worktree/blob &&
 268         git -C second-worktree add blob &&
 269         git prune --expire=now &&
 270         git -C second-worktree show :blob >actual &&
 271         test_cmp second-worktree/blob actual
 272 '
 273
 274 test_expect_success 'prune: handle HEAD in multiple worktrees' '
 275         git worktree add --detach third-worktree &&
 276         echo "new blob for third-worktree" >third-worktree/blob &&
 277         git -C third-worktree add blob &&
 278         git -C third-worktree commit -m "third" &&
 279         rm .git/worktrees/third-worktree/index &&
 280         test_must_fail git -C third-worktree show :blob &&
 281         git prune --expire=now &&
 282         git -C third-worktree show HEAD:blob >actual &&
 283         test_cmp third-worktree/blob actual
 284 '
 285
 286 test_expect_success 'prune: handle HEAD reflog in multiple worktrees' '
 287         git config core.logAllRefUpdates true &&
 288         echo "lost blob for third-worktree" >expected &&
 289         (
 290                 cd third-worktree &&
 291                 cat ../expected >blob &&
 292                 git add blob &&
 293                 git commit -m "second commit in third" &&
 294                 git reset --hard HEAD^
 295         ) &&
 296         git prune --expire=now &&
 297         oid=`git hash-object expected` &&
 298         git -C third-worktree show "$oid" >actual &&
 299         test_cmp expected actual
 300 '
 301
 302 test_expect_success 'prune: handle expire option correctly' '
 303         test_must_fail git prune --expire 2>error &&
 304         test_i18ngrep "requires a value" error &&
 305
 306         test_must_fail git prune --expire=nyah 2>error &&
 307         test_i18ngrep "malformed expiration" error &&
 308
 309         git prune --no-expire
 310 '
 311
 312 test_expect_success 'trivial prune with bitmaps enabled' '
 313         git repack -adb &&
 314         blob=$(echo bitmap-unreachable-blob | git hash-object -w --stdin) &&
 315         git prune --expire=now &&
 316         git cat-file -e HEAD &&
 317         test_must_fail git cat-file -e $blob
 318 '
 319
 320 test_expect_success 'old reachable-from-recent retained with bitmaps' '
 321         git repack -adb &&
 322         to_drop=$(echo bitmap-from-recent-1 | git hash-object -w --stdin) &&
 323         test-tool chmtime -86400 .git/objects/$(test_oid_to_path $to_drop) &&
 324         to_save=$(echo bitmap-from-recent-2 | git hash-object -w --stdin) &&
 325         test-tool chmtime -86400 .git/objects/$(test_oid_to_path $to_save) &&
 326         tree=$(printf "100644 blob $to_save\tfile\n" | git mktree) &&
 327         test-tool chmtime -86400 .git/objects/$(test_oid_to_path $tree) &&
 328         commit=$(echo foo | git commit-tree $tree) &&
 329         git prune --expire=12.hours.ago &&
 330         git cat-file -e $commit &&
 331         git cat-file -e $tree &&
 332         git cat-file -e $to_save &&
 333         test_must_fail git cat-file -e $to_drop
 334 '
 335
 336 test_done