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path: root/t/t7703-repack-geometric.sh
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#!/bin/sh
 
test_description='git repack --geometric works correctly'
 
. ./test-lib.sh
 
GIT_TEST_MULTI_PACK_INDEX=0
 
objdir=.git/objects
midx=$objdir/pack/multi-pack-index
 
test_expect_success '--geometric with no packs' '
	git init geometric &&
	test_when_finished "rm -fr geometric" &&
	(
		cd geometric &&
 
		git repack --geometric 2 >out &&
		test_i18ngrep "Nothing new to pack" out
	)
'
 
test_expect_success '--geometric with one pack' '
	git init geometric &&
	test_when_finished "rm -fr geometric" &&
	(
		cd geometric &&
 
		test_commit "base" &&
		git repack -d &&
 
		git repack --geometric 2 >out &&
 
		test_i18ngrep "Nothing new to pack" out
	)
'
 
test_expect_success '--geometric with an intact progression' '
	git init geometric &&
	test_when_finished "rm -fr geometric" &&
	(
		cd geometric &&
 
		# These packs already form a geometric progression.
		test_commit_bulk --start=1 1 && # 3 objects
		test_commit_bulk --start=2 2 && # 6 objects
		test_commit_bulk --start=4 4 && # 12 objects
 
		find $objdir/pack -name "*.pack" | sort >expect &&
		git repack --geometric 2 -d &&
		find $objdir/pack -name "*.pack" | sort >actual &&
 
		test_cmp expect actual
	)
'
 
test_expect_success '--geometric with loose objects' '
	git init geometric &&
	test_when_finished "rm -fr geometric" &&
	(
		cd geometric &&
 
		# These packs already form a geometric progression.
		test_commit_bulk --start=1 1 && # 3 objects
		test_commit_bulk --start=2 2 && # 6 objects
		# The loose objects are packed together, breaking the
		# progression.
		test_commit loose && # 3 objects
 
		find $objdir/pack -name "*.pack" | sort >before &&
		git repack --geometric 2 -d &&
		find $objdir/pack -name "*.pack" | sort >after &&
 
		comm -13 before after >new &&
		comm -23 before after >removed &&
 
		test_line_count = 1 new &&
		test_must_be_empty removed &&
 
		git repack --geometric 2 -d &&
		find $objdir/pack -name "*.pack" | sort >after &&
 
		# The progression (3, 3, 6) is combined into one new pack.
		test_line_count = 1 after
	)
'
 
test_expect_success '--geometric with small-pack rollup' '
	git init geometric &&
	test_when_finished "rm -fr geometric" &&
	(
		cd geometric &&
 
		test_commit_bulk --start=1 1 && # 3 objects
		test_commit_bulk --start=2 1 && # 3 objects
		find $objdir/pack -name "*.pack" | sort >small &&
		test_commit_bulk --start=3 4 && # 12 objects
		test_commit_bulk --start=7 8 && # 24 objects
		find $objdir/pack -name "*.pack" | sort >before &&
 
		git repack --geometric 2 -d &&
 
		# Three packs in total; two of the existing large ones, and one
		# new one.
		find $objdir/pack -name "*.pack" | sort >after &&
		test_line_count = 3 after &&
		comm -3 small before | tr -d "\t" >large &&
		grep -qFf large after
	)
'
 
test_expect_success '--geometric with small- and large-pack rollup' '
	git init geometric &&
	test_when_finished "rm -fr geometric" &&
	(
		cd geometric &&
 
		# size(small1) + size(small2) > size(medium) / 2
		test_commit_bulk --start=1 1 && # 3 objects
		test_commit_bulk --start=2 1 && # 3 objects
		test_commit_bulk --start=2 3 && # 7 objects
		test_commit_bulk --start=6 9 && # 27 objects &&
 
		find $objdir/pack -name "*.pack" | sort >before &&
 
		git repack --geometric 2 -d &&
 
		find $objdir/pack -name "*.pack" | sort >after &&
		comm -12 before after >untouched &&
 
		# Two packs in total; the largest pack from before running "git
		# repack", and one new one.
		test_line_count = 1 untouched &&
		test_line_count = 2 after
	)
'
 
test_expect_success '--geometric ignores kept packs' '
	git init geometric &&
	test_when_finished "rm -fr geometric" &&
	(
		cd geometric &&
 
		test_commit kept && # 3 objects
		test_commit pack && # 3 objects
 
		KEPT=$(git pack-objects --revs $objdir/pack/pack <<-EOF
		refs/tags/kept
		EOF
		) &&
		PACK=$(git pack-objects --revs $objdir/pack/pack <<-EOF
		refs/tags/pack
		^refs/tags/kept
		EOF
		) &&
 
		# neither pack contains more than twice the number of objects in
		# the other, so they should be combined. but, marking one as
		# .kept on disk will "freeze" it, so the pack structure should
		# remain unchanged.
		touch $objdir/pack/pack-$KEPT.keep &&
 
		find $objdir/pack -name "*.pack" | sort >before &&
		git repack --geometric 2 -d &&
		find $objdir/pack -name "*.pack" | sort >after &&
 
		# both packs should still exist
		test_path_is_file $objdir/pack/pack-$KEPT.pack &&
		test_path_is_file $objdir/pack/pack-$PACK.pack &&
 
		# and no new packs should be created
		test_cmp before after &&
 
		# Passing --pack-kept-objects causes packs with a .keep file to
		# be repacked, too.
		git repack --geometric 2 -d --pack-kept-objects &&
 
		find $objdir/pack -name "*.pack" >after &&
		test_line_count = 1 after
	)
'
 
test_done