#!/bin/sh

test_description='basic git gc tests
'

. ./test-lib.sh

test_expect_success 'gc empty repository' '
	git gc
'

test_expect_success 'gc does not leave behind pid file' '
	git gc &&
	test_path_is_missing .git/gc.pid
'

test_expect_success 'gc --gobbledegook' '
	test_expect_code 129 git gc --nonsense 2>err &&
	test_i18ngrep "[Uu]sage: git gc" err
'

test_expect_success 'gc -h with invalid configuration' '
	mkdir broken &&
	(
		cd broken &&
		git init &&
		echo "[gc] pruneexpire = CORRUPT" >>.git/config &&
		test_expect_code 129 git gc -h >usage 2>&1
	) &&
	test_i18ngrep "[Uu]sage" broken/usage
'

test_expect_success 'gc is not aborted due to a stale symref' '
	git init remote &&
	(
		cd remote &&
		test_commit initial &&
		git clone . ../client &&
		git branch -m develop &&
		cd ../client &&
		git fetch --prune &&
		git gc
	)
'

test_expect_success 'auto gc with too many loose objects does not attempt to create bitmaps' '
	test_config gc.auto 3 &&
	test_config gc.autodetach false &&
	test_config pack.writebitmaps true &&
	# We need to create two object whose sha1s start with 17
	# since this is what git gc counts.  As it happens, these
	# two blobs will do so.
	test_commit 263 &&
	test_commit 410 &&
	# Our first gc will create a pack; our second will create a second pack
	git gc --auto &&
	ls .git/objects/pack | sort >existing_packs &&
	test_commit 523 &&
	test_commit 790 &&

	git gc --auto 2>err &&
	test_i18ngrep ! "^warning:" err &&
	ls .git/objects/pack/ | sort >post_packs &&
	comm -1 -3 existing_packs post_packs >new &&
	comm -2 -3 existing_packs post_packs >del &&
	test_line_count = 0 del && # No packs are deleted
	test_line_count = 2 new # There is one new pack and its .idx
'

test_expect_success 'background auto gc does not run if gc.log is present and recent but does if it is old' '
	test_commit foo &&
	test_commit bar &&
	git repack &&
	test_config gc.autopacklimit 1 &&
	test_config gc.autodetach true &&
	echo fleem >.git/gc.log &&
	test_must_fail git gc --auto 2>err &&
	test_i18ngrep "^error:" err &&
	test_config gc.logexpiry 5.days &&
	test-chmtime =-345600 .git/gc.log &&
	test_must_fail git gc --auto &&
	test_config gc.logexpiry 2.days &&
	git gc --auto
'

test_done