1#!/bin/sh 2 3test_description='basic git gc tests 4' 5 6. ./test-lib.sh 7 8test_expect_success 'gc empty repository'' 9 git gc 10' 11 12test_expect_success 'gc does not leave behind pid file'' 13 git gc && 14 test_path_is_missing .git/gc.pid 15' 16 17test_expect_success 'gc --gobbledegook'' 18 test_expect_code 129 git gc --nonsense 2>err && 19 test_i18ngrep "[Uu]sage: git gc" err 20' 21 22test_expect_success 'gc -h with invalid configuration'' 23 mkdir broken && 24 ( 25 cd broken && 26 git init && 27 echo "[gc] pruneexpire = CORRUPT" >>.git/config && 28 test_expect_code 129 git gc -h >usage 2>&1 29 ) && 30 test_i18ngrep "[Uu]sage" broken/usage 31' 32 33test_expect_success 'gc is not aborted due to a stale symref'' 34 git init remote && 35 ( 36 cd remote && 37 test_commit initial && 38 git clone . ../client && 39 git branch -m develop && 40 cd ../client && 41 git fetch --prune && 42 git gc 43 ) 44' 45 46test_expect_success 'gc --keep-largest-pack'' 47 test_create_repo keep-pack && 48 ( 49 cd keep-pack && 50 test_commit one && 51 test_commit two && 52 test_commit three && 53 git gc && 54 ( cd .git/objects/pack && ls *.pack ) >pack-list && 55 test_line_count = 1 pack-list && 56 BASE_PACK=.git/objects/pack/pack-*.pack && 57 test_commit four && 58 git repack -d && 59 test_commit five && 60 git repack -d && 61 ( cd .git/objects/pack && ls *.pack ) >pack-list && 62 test_line_count = 3 pack-list && 63 git gc --keep-largest-pack && 64 ( cd .git/objects/pack && ls *.pack ) >pack-list && 65 test_line_count = 2 pack-list && 66 test_path_is_file$BASE_PACK&& 67 git fsck 68 ) 69' 70 71test_expect_success 'auto gc with too many loose objects does not attempt to create bitmaps'' 72 test_config gc.auto 3 && 73 test_config gc.autodetach false && 74 test_config pack.writebitmaps true && 75 # We need to create two object whose sha1s start with 17 76 # since this is what git gc counts. As it happens, these 77 # two blobs will do so. 78 test_commit 263 && 79 test_commit 410 && 80 # Our first gc will create a pack; our second will create a second pack 81 git gc --auto && 82 ls .git/objects/pack | sort >existing_packs && 83 test_commit 523 && 84 test_commit 790 && 85 86 git gc --auto 2>err && 87 test_i18ngrep ! "^warning:" err && 88 ls .git/objects/pack/ | sort >post_packs && 89 comm -1 -3 existing_packs post_packs >new && 90 comm -2 -3 existing_packs post_packs >del && 91 test_line_count = 0 del && # No packs are deleted 92 test_line_count = 2 new # There is one new pack and its .idx 93' 94 95run_and_wait_for_auto_gc () { 96# We read stdout from gc for the side effect of waiting until the 97# background gc process exits, closing its fd 9. Furthermore, the 98# variable assignment from a command substitution preserves the 99# exit status of the main gc process. 100# Note: this fd trickery doesn't work on Windows, but there is no 101# need to, because on Win the auto gc always runs in the foreground. 102 doesnt_matter=$(git gc --auto 9>&1) 103} 104 105test_expect_success 'background auto gc does not run if gc.log is present and recent but does if it is old'' 106 test_commit foo && 107 test_commit bar && 108 git repack && 109 test_config gc.autopacklimit 1 && 110 test_config gc.autodetach true && 111 echo fleem >.git/gc.log && 112 test_must_fail git gc --auto 2>err && 113 test_i18ngrep "^error:" err && 114 test_config gc.logexpiry 5.days && 115 test-tool chmtime =-345600 .git/gc.log && 116 test_must_fail git gc --auto && 117 test_config gc.logexpiry 2.days && 118 run_and_wait_for_auto_gc && 119 ls .git/objects/pack/pack-*.pack >packs && 120 test_line_count = 1 packs 121' 122 123test_expect_success 'background auto gc respects lock for all operations'' 124 # make sure we run a background auto-gc 125 test_commit make-pack && 126 git repack && 127 test_config gc.autopacklimit 1 && 128 test_config gc.autodetach true && 129 130 # create a ref whose loose presence we can use to detect a pack-refs run 131 git update-ref refs/heads/should-be-loose HEAD && 132 test_path_is_file .git/refs/heads/should-be-loose && 133 134 # now fake a concurrent gc that holds the lock; we can use our 135 # shell pid so that it looks valid. 136 hostname=$(hostname || echo unknown)&& 137 printf "$$ %s" "$hostname" >.git/gc.pid && 138 139 # our gc should exit zero without doing anything 140 run_and_wait_for_auto_gc && 141 test_path_is_file .git/refs/heads/should-be-loose 142' 143 144# DO NOT leave a detached auto gc process running near the end of the 145# test script: it can run long enough in the background to racily 146# interfere with the cleanup in 'test_done'. 147 148test_done