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 'auto gc with too many loose objects does not attempt to create bitmaps'' 47 test_config gc.auto 3 && 48 test_config gc.autodetach false && 49 test_config pack.writebitmaps true && 50 # We need to create two object whose sha1s start with 17 51 # since this is what git gc counts. As it happens, these 52 # two blobs will do so. 53 test_commit 263 && 54 test_commit 410 && 55 # Our first gc will create a pack; our second will create a second pack 56 git gc --auto && 57 ls .git/objects/pack | sort >existing_packs && 58 test_commit 523 && 59 test_commit 790 && 60 61 git gc --auto 2>err && 62 test_i18ngrep ! "^warning:" err && 63 ls .git/objects/pack/ | sort >post_packs && 64 comm -1 -3 existing_packs post_packs >new && 65 comm -2 -3 existing_packs post_packs >del && 66 test_line_count = 0 del && # No packs are deleted 67 test_line_count = 2 new # There is one new pack and its .idx 68' 69 70run_and_wait_for_auto_gc () { 71# We read stdout from gc for the side effect of waiting until the 72# background gc process exits, closing its fd 9. Furthermore, the 73# variable assignment from a command substitution preserves the 74# exit status of the main gc process. 75# Note: this fd trickery doesn't work on Windows, but there is no 76# need to, because on Win the auto gc always runs in the foreground. 77 doesnt_matter=$(git gc --auto 9>&1) 78} 79 80test_expect_success 'background auto gc does not run if gc.log is present and recent but does if it is old'' 81 test_commit foo && 82 test_commit bar && 83 git repack && 84 test_config gc.autopacklimit 1 && 85 test_config gc.autodetach true && 86 echo fleem >.git/gc.log && 87 test_must_fail git gc --auto 2>err && 88 test_i18ngrep "^error:" err && 89 test_config gc.logexpiry 5.days && 90 test-tool chmtime =-345600 .git/gc.log && 91 test_must_fail git gc --auto && 92 test_config gc.logexpiry 2.days && 93 run_and_wait_for_auto_gc && 94 ls .git/objects/pack/pack-*.pack >packs && 95 test_line_count = 1 packs 96' 97 98test_expect_success 'background auto gc respects lock for all operations'' 99 # make sure we run a background auto-gc 100 test_commit make-pack && 101 git repack && 102 test_config gc.autopacklimit 1 && 103 test_config gc.autodetach true && 104 105 # create a ref whose loose presence we can use to detect a pack-refs run 106 git update-ref refs/heads/should-be-loose HEAD && 107 test_path_is_file .git/refs/heads/should-be-loose && 108 109 # now fake a concurrent gc that holds the lock; we can use our 110 # shell pid so that it looks valid. 111 hostname=$(hostname || echo unknown)&& 112 printf "$$ %s" "$hostname" >.git/gc.pid && 113 114 # our gc should exit zero without doing anything 115 run_and_wait_for_auto_gc && 116 test_path_is_file .git/refs/heads/should-be-loose 117' 118 119# DO NOT leave a detached auto gc process running near the end of the 120# test script: it can run long enough in the background to racily 121# interfere with the cleanup in 'test_done'. 122 123test_done