Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2
   3test_description='basic git gc tests
   4'
   5
   6. ./test-lib.sh
   7. "$TEST_DIRECTORY"/lib-terminal.sh
   8
   9test_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'
  15
  16test_expect_success 'gc empty repository' '
  17        git gc
  18'
  19
  20test_expect_success 'gc does not leave behind pid file' '
  21        git gc &&
  22        test_path_is_missing .git/gc.pid
  23'
  24
  25test_expect_success 'gc --gobbledegook' '
  26        test_expect_code 129 git gc --nonsense 2>err &&
  27        test_i18ngrep "[Uu]sage: git gc" err
  28'
  29
  30test_expect_success 'gc -h with invalid configuration' '
  31        mkdir broken &&
  32        (
  33                cd broken &&
  34                git init &&
  35                echo "[gc] pruneexpire = CORRUPT" >>.git/config &&
  36                test_expect_code 129 git gc -h >usage 2>&1
  37        ) &&
  38        test_i18ngrep "[Uu]sage" broken/usage
  39'
  40
  41test_expect_success 'gc is not aborted due to a stale symref' '
  42        git init remote &&
  43        (
  44                cd remote &&
  45                test_commit initial &&
  46                git clone . ../client &&
  47                git branch -m develop &&
  48                cd ../client &&
  49                git fetch --prune &&
  50                git gc
  51        )
  52'
  53
  54test_expect_success 'gc --keep-largest-pack' '
  55        test_create_repo keep-pack &&
  56        (
  57                cd keep-pack &&
  58                test_commit one &&
  59                test_commit two &&
  60                test_commit three &&
  61                git gc &&
  62                ( cd .git/objects/pack && ls *.pack ) >pack-list &&
  63                test_line_count = 1 pack-list &&
  64                BASE_PACK=.git/objects/pack/pack-*.pack &&
  65                test_commit four &&
  66                git repack -d &&
  67                test_commit five &&
  68                git repack -d &&
  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 &&
  77                git fsck
  78        )
  79'
  80
  81test_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.
  88        test_commit 263 &&
  89        test_commit 410 &&
  90        # Our first gc will create a pack; our second will create a second pack
  91        git gc --auto &&
  92        ls .git/objects/pack | sort >existing_packs &&
  93        test_commit 523 &&
  94        test_commit 790 &&
  95
  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
 103'
 104
 105test_expect_success 'gc --no-quiet' '
 106        git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr &&
 107        test_must_be_empty stdout &&
 108        test_line_count = 1 stderr &&
 109        test_i18ngrep "Computing commit graph generation numbers" stderr
 110'
 111
 112test_expect_success TTY 'with TTY: gc --no-quiet' '
 113        test_terminal git -c gc.writeCommitGraph=true gc --no-quiet >stdout 2>stderr &&
 114        test_must_be_empty stdout &&
 115        test_i18ngrep "Enumerating objects" stderr &&
 116        test_i18ngrep "Computing commit graph generation numbers" stderr
 117'
 118
 119test_expect_success 'gc --quiet' '
 120        git -c gc.writeCommitGraph=true gc --quiet >stdout 2>stderr &&
 121        test_must_be_empty stdout &&
 122        test_must_be_empty stderr
 123'
 124
 125test_expect_success 'gc.reflogExpire{Unreachable,}=never skips "expire" via "gc"' '
 126        test_config gc.reflogExpire never &&
 127        test_config gc.reflogExpireUnreachable never &&
 128
 129        GIT_TRACE=$(pwd)/trace.out git gc &&
 130
 131        # Check that git-pack-refs is run as a sanity check (done via
 132        # gc_before_repack()) but that git-expire is not.
 133        grep -E "^trace: (built-in|exec|run_command): git pack-refs --" trace.out &&
 134        ! grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out
 135'
 136
 137test_expect_success 'one of gc.reflogExpire{Unreachable,}=never does not skip "expire" via "gc"' '
 138        >trace.out &&
 139        test_config gc.reflogExpire never &&
 140        GIT_TRACE=$(pwd)/trace.out git gc &&
 141        grep -E "^trace: (built-in|exec|run_command): git reflog expire --" trace.out
 142'
 143
 144run_and_wait_for_auto_gc () {
 145        # We read stdout from gc for the side effect of waiting until the
 146        # background gc process exits, closing its fd 9.  Furthermore, the
 147        # variable assignment from a command substitution preserves the
 148        # exit status of the main gc process.
 149        # Note: this fd trickery doesn't work on Windows, but there is no
 150        # need to, because on Win the auto gc always runs in the foreground.
 151        doesnt_matter=$(git gc --auto 9>&1)
 152}
 153
 154test_expect_success 'background auto gc does not run if gc.log is present and recent but does if it is old' '
 155        test_commit foo &&
 156        test_commit bar &&
 157        git repack &&
 158        test_config gc.autopacklimit 1 &&
 159        test_config gc.autodetach true &&
 160        echo fleem >.git/gc.log &&
 161        git gc --auto 2>err &&
 162        test_i18ngrep "^warning:" err &&
 163        test_config gc.logexpiry 5.days &&
 164        test-tool chmtime =-345600 .git/gc.log &&
 165        git gc --auto &&
 166        test_config gc.logexpiry 2.days &&
 167        run_and_wait_for_auto_gc &&
 168        ls .git/objects/pack/pack-*.pack >packs &&
 169        test_line_count = 1 packs
 170'
 171
 172test_expect_success 'background auto gc respects lock for all operations' '
 173        # make sure we run a background auto-gc
 174        test_commit make-pack &&
 175        git repack &&
 176        test_config gc.autopacklimit 1 &&
 177        test_config gc.autodetach true &&
 178
 179        # create a ref whose loose presence we can use to detect a pack-refs run
 180        git update-ref refs/heads/should-be-loose HEAD &&
 181        test_path_is_file .git/refs/heads/should-be-loose &&
 182
 183        # now fake a concurrent gc that holds the lock; we can use our
 184        # shell pid so that it looks valid.
 185        hostname=$(hostname || echo unknown) &&
 186        shell_pid=$$ &&
 187        if test_have_prereq MINGW && test -f /proc/$shell_pid/winpid
 188        then
 189                # In Git for Windows, Bash (actually, the MSYS2 runtime) has a
 190                # different idea of PIDs than git.exe (actually Windows). Use
 191                # the Windows PID in this case.
 192                shell_pid=$(cat /proc/$shell_pid/winpid)
 193        fi &&
 194        printf "%d %s" "$shell_pid" "$hostname" >.git/gc.pid &&
 195
 196        # our gc should exit zero without doing anything
 197        run_and_wait_for_auto_gc &&
 198        test_path_is_file .git/refs/heads/should-be-loose
 199'
 200
 201# DO NOT leave a detached auto gc process running near the end of the
 202# test script: it can run long enough in the background to racily
 203# interfere with the cleanup in 'test_done'.
 204
 205test_done