1#!/bin/sh 2# 3# Copyright (c) 2009, Red Hat Inc, Author: Michael S. Tsirkin (mst@redhat.com) 4# 5 6test_description='test clone --reference' 7. ./test-lib.sh 8 9base_dir=$(pwd) 10 11test_alternate_is_used () { 12 alternates_file="$1" && 13 working_dir="$2" && 14 test_line_count = 1 "$alternates_file" && 15 echo "0 objects, 0 kilobytes" >expect && 16 git -C "$working_dir" count-objects >actual && 17 test_cmp expect actual 18} 19 20test_expect_success 'preparing first repository' ' 21 test_create_repo A && 22 ( 23 cd A && 24 echo first >file1 && 25 git add file1 && 26 git commit -m A-initial 27 ) 28' 29 30test_expect_success 'preparing second repository' ' 31 git clone A B && 32 ( 33 cd B && 34 echo second >file2 && 35 git add file2 && 36 git commit -m B-addition && 37 git repack -a -d && 38 git prune 39 ) 40' 41 42test_expect_success 'preparing superproject' ' 43 test_create_repo super && 44 ( 45 cd super && 46 echo file >file && 47 git add file && 48 git commit -m B-super-initial 49 ) 50' 51 52test_expect_success 'submodule add --reference uses alternates' ' 53 ( 54 cd super && 55 git submodule add --reference ../B "file://$base_dir/A" sub && 56 git commit -m B-super-added && 57 git repack -ad 58 ) && 59 test_alternate_is_used super/.git/modules/sub/objects/info/alternates super/sub 60' 61 62test_expect_success 'submodule add --reference with --dissociate does not use alternates' ' 63 ( 64 cd super && 65 git submodule add --reference ../B --dissociate "file://$base_dir/A" sub-dissociate && 66 git commit -m B-super-added && 67 git repack -ad 68 ) && 69 test_path_is_missing super/.git/modules/sub-dissociate/objects/info/alternates 70' 71 72test_expect_success 'that reference gets used with add' ' 73 ( 74 cd super/sub && 75 echo "0 objects, 0 kilobytes" >expected && 76 git count-objects >current && 77 diff expected current 78 ) 79' 80 81# The tests up to this point, and repositories created by them 82# (A, B, super and super/sub), are about setting up the stage 83# for subsequent tests and meant to be kept throughout the 84# remainder of the test. 85# Tests from here on, if they create their own test repository, 86# are expected to clean after themselves. 87 88test_expect_success 'updating superproject keeps alternates' ' 89 test_when_finished "rm -rf super-clone" && 90 git clone super super-clone && 91 git -C super-clone submodule update --init --reference ../B && 92 test_alternate_is_used super-clone/.git/modules/sub/objects/info/alternates super-clone/sub 93' 94 95test_expect_success 'updating superproject with --dissociate does not keep alternates' ' 96 test_when_finished "rm -rf super-clone" && 97 git clone super super-clone && 98 git -C super-clone submodule update --init --reference ../B --dissociate && 99 test_path_is_missing super-clone/.git/modules/sub/objects/info/alternates 100' 101 102test_expect_success 'submodules use alternates when cloning a superproject' ' 103 test_when_finished "rm -rf super-clone" && 104 git clone --reference super --recursive super super-clone && 105 ( 106 cd super-clone && 107 # test superproject has alternates setup correctly 108 test_alternate_is_used .git/objects/info/alternates . && 109 # test submodule has correct setup 110 test_alternate_is_used .git/modules/sub/objects/info/alternates sub 111 ) 112' 113 114test_expect_success 'missing submodule alternate fails clone and submodule update' ' 115 test_when_finished "rm -rf super-clone" && 116 git clone super super2 && 117 test_must_fail git clone --recursive --reference super2 super2 super-clone && 118 ( 119 cd super-clone && 120 # test superproject has alternates setup correctly 121 test_alternate_is_used .git/objects/info/alternates . && 122 # update of the submodule succeeds 123 test_must_fail git submodule update --init && 124 # and we have no alternates: 125 test_path_is_missing .git/modules/sub/objects/info/alternates && 126 test_path_is_missing sub/file1 127 ) 128' 129 130test_expect_success 'ignoring missing submodule alternates passes clone and submodule update' ' 131 test_when_finished "rm -rf super-clone" && 132 git clone --reference-if-able super2 --recursive super2 super-clone && 133 ( 134 cd super-clone && 135 # test superproject has alternates setup correctly 136 test_alternate_is_used .git/objects/info/alternates . && 137 # update of the submodule succeeds 138 git submodule update --init && 139 # and we have no alternates: 140 test_path_is_missing .git/modules/sub/objects/info/alternates && 141 test_path_is_file sub/file1 142 ) 143' 144 145test_expect_success 'preparing second superproject with a nested submodule plus partial clone' ' 146 test_create_repo supersuper && 147 ( 148 cd supersuper && 149 echo "I am super super." >file && 150 git add file && 151 git commit -m B-super-super-initial && 152 git submodule add "file://$base_dir/super" subwithsub && 153 git commit -m B-super-super-added && 154 git submodule update --init --recursive && 155 git repack -ad 156 ) && 157 git clone supersuper supersuper2 && 158 ( 159 cd supersuper2 && 160 git submodule update --init 161 ) 162' 163 164# At this point there are three root-level positories: A, B, super and super2 165 166test_expect_success 'nested submodule alternate in works and is actually used' ' 167 test_when_finished "rm -rf supersuper-clone" && 168 git clone --recursive --reference supersuper supersuper supersuper-clone && 169 ( 170 cd supersuper-clone && 171 # test superproject has alternates setup correctly 172 test_alternate_is_used .git/objects/info/alternates . && 173 # immediate submodule has alternate: 174 test_alternate_is_used .git/modules/subwithsub/objects/info/alternates subwithsub && 175 # nested submodule also has alternate: 176 test_alternate_is_used .git/modules/subwithsub/modules/sub/objects/info/alternates subwithsub/sub 177 ) 178' 179 180check_that_two_of_three_alternates_are_used() { 181 test_alternate_is_used .git/objects/info/alternates . && 182 # immediate submodule has alternate: 183 test_alternate_is_used .git/modules/subwithsub/objects/info/alternates subwithsub && 184 # but nested submodule has no alternate: 185 test_path_is_missing .git/modules/subwithsub/modules/sub/objects/info/alternates 186} 187 188 189test_expect_success 'missing nested submodule alternate fails clone and submodule update' ' 190 test_when_finished "rm -rf supersuper-clone" && 191 test_must_fail git clone --recursive --reference supersuper2 supersuper2 supersuper-clone && 192 ( 193 cd supersuper-clone && 194 check_that_two_of_three_alternates_are_used && 195 # update of the submodule fails 196 test_must_fail git submodule update --init --recursive 197 ) 198' 199 200test_expect_success 'missing nested submodule alternate in --reference-if-able mode' ' 201 test_when_finished "rm -rf supersuper-clone" && 202 git clone --recursive --reference-if-able supersuper2 supersuper2 supersuper-clone && 203 ( 204 cd supersuper-clone && 205 check_that_two_of_three_alternates_are_used && 206 # update of the submodule succeeds 207 git submodule update --init --recursive 208 ) 209' 210 211test_done 212