diff options
Diffstat (limited to 't/t7408-submodule-reference.sh')
| -rwxr-xr-x | t/t7408-submodule-reference.sh | 251 |
1 files changed, 182 insertions, 69 deletions
diff --git a/t/t7408-submodule-reference.sh b/t/t7408-submodule-reference.sh index eaea19b8f2..e159fc5035 100755 --- a/t/t7408-submodule-reference.sh +++ b/t/t7408-submodule-reference.sh @@ -8,74 +8,187 @@ test_description='test clone --reference' base_dir=$(pwd) -U=$base_dir/UPLOAD_LOG - -test_expect_success 'preparing first repository' \ -'test_create_repo A && cd A && -echo first > file1 && -git add file1 && -git commit -m A-initial' - -cd "$base_dir" - -test_expect_success 'preparing second repository' \ -'git clone A B && cd B && -echo second > file2 && -git add file2 && -git commit -m B-addition && -git repack -a -d && -git prune' - -cd "$base_dir" - -test_expect_success 'preparing superproject' \ -'test_create_repo super && cd super && -echo file > file && -git add file && -git commit -m B-super-initial' - -cd "$base_dir" - -test_expect_success 'submodule add --reference' \ -'cd super && git submodule add --reference ../B "file://$base_dir/A" sub && -git commit -m B-super-added' - -cd "$base_dir" - -test_expect_success 'after add: existence of info/alternates' \ -'test_line_count = 1 super/.git/modules/sub/objects/info/alternates' - -cd "$base_dir" - -test_expect_success 'that reference gets used with add' \ -'cd super/sub && -echo "0 objects, 0 kilobytes" > expected && -git count-objects > current && -diff expected current' - -cd "$base_dir" - -test_expect_success 'cloning superproject' \ -'git clone super super-clone' - -cd "$base_dir" - -test_expect_success 'update with reference' \ -'cd super-clone && git submodule update --init --reference ../B' - -cd "$base_dir" - -test_expect_success 'after update: existence of info/alternates' \ -'test_line_count = 1 super-clone/.git/modules/sub/objects/info/alternates' - -cd "$base_dir" - -test_expect_success 'that reference gets used with update' \ -'cd super-clone/sub && -echo "0 objects, 0 kilobytes" > expected && -git count-objects > current && -diff expected current' - -cd "$base_dir" +test_alternate_is_used () { + alternates_file="$1" && + working_dir="$2" && + test_line_count = 1 "$alternates_file" && + echo "0 objects, 0 kilobytes" >expect && + git -C "$working_dir" count-objects >actual && + test_cmp expect actual +} + +test_expect_success 'preparing first repository' ' + test_create_repo A && + ( + cd A && + echo first >file1 && + git add file1 && + git commit -m A-initial + ) +' + +test_expect_success 'preparing second repository' ' + git clone A B && + ( + cd B && + echo second >file2 && + git add file2 && + git commit -m B-addition && + git repack -a -d && + git prune + ) +' + +test_expect_success 'preparing superproject' ' + test_create_repo super && + ( + cd super && + echo file >file && + git add file && + git commit -m B-super-initial + ) +' + +test_expect_success 'submodule add --reference uses alternates' ' + ( + cd super && + git submodule add --reference ../B "file://$base_dir/A" sub && + git commit -m B-super-added && + git repack -ad + ) && + test_alternate_is_used super/.git/modules/sub/objects/info/alternates super/sub +' + +test_expect_success 'that reference gets used with add' ' + ( + cd super/sub && + echo "0 objects, 0 kilobytes" >expected && + git count-objects >current && + diff expected current + ) +' + +# The tests up to this point, and repositories created by them +# (A, B, super and super/sub), are about setting up the stage +# for subsequent tests and meant to be kept throughout the +# remainder of the test. +# Tests from here on, if they create their own test repository, +# are expected to clean after themselves. + +test_expect_success 'updating superproject keeps alternates' ' + test_when_finished "rm -rf super-clone" && + git clone super super-clone && + git -C super-clone submodule update --init --reference ../B && + test_alternate_is_used super-clone/.git/modules/sub/objects/info/alternates super-clone/sub +' + +test_expect_success 'submodules use alternates when cloning a superproject' ' + test_when_finished "rm -rf super-clone" && + git clone --reference super --recursive super super-clone && + ( + cd super-clone && + # test superproject has alternates setup correctly + test_alternate_is_used .git/objects/info/alternates . && + # test submodule has correct setup + test_alternate_is_used .git/modules/sub/objects/info/alternates sub + ) +' + +test_expect_success 'missing submodule alternate fails clone and submodule update' ' + test_when_finished "rm -rf super-clone" && + git clone super super2 && + test_must_fail git clone --recursive --reference super2 super2 super-clone && + ( + cd super-clone && + # test superproject has alternates setup correctly + test_alternate_is_used .git/objects/info/alternates . && + # update of the submodule succeeds + test_must_fail git submodule update --init && + # and we have no alternates: + test_must_fail test_alternate_is_used .git/modules/sub/objects/info/alternates sub && + test_must_fail test_path_is_file sub/file1 + ) +' + +test_expect_success 'ignoring missing submodule alternates passes clone and submodule update' ' + test_when_finished "rm -rf super-clone" && + git clone --reference-if-able super2 --recursive super2 super-clone && + ( + cd super-clone && + # test superproject has alternates setup correctly + test_alternate_is_used .git/objects/info/alternates . && + # update of the submodule succeeds + git submodule update --init && + # and we have no alternates: + test_must_fail test_alternate_is_used .git/modules/sub/objects/info/alternates sub && + test_path_is_file sub/file1 + ) +' + +test_expect_success 'preparing second superproject with a nested submodule plus partial clone' ' + test_create_repo supersuper && + ( + cd supersuper && + echo "I am super super." >file && + git add file && + git commit -m B-super-super-initial + git submodule add "file://$base_dir/super" subwithsub && + git commit -m B-super-super-added && + git submodule update --init --recursive && + git repack -ad + ) && + git clone supersuper supersuper2 && + ( + cd supersuper2 && + git submodule update --init + ) +' + +# At this point there are three root-level positories: A, B, super and super2 + +test_expect_success 'nested submodule alternate in works and is actually used' ' + test_when_finished "rm -rf supersuper-clone" && + git clone --recursive --reference supersuper supersuper supersuper-clone && + ( + cd supersuper-clone && + # test superproject has alternates setup correctly + test_alternate_is_used .git/objects/info/alternates . && + # immediate submodule has alternate: + test_alternate_is_used .git/modules/subwithsub/objects/info/alternates subwithsub && + # nested submodule also has alternate: + test_alternate_is_used .git/modules/subwithsub/modules/sub/objects/info/alternates subwithsub/sub + ) +' + +check_that_two_of_three_alternates_are_used() { + test_alternate_is_used .git/objects/info/alternates . && + # immediate submodule has alternate: + test_alternate_is_used .git/modules/subwithsub/objects/info/alternates subwithsub && + # but nested submodule has no alternate: + test_must_fail test_alternate_is_used .git/modules/subwithsub/modules/sub/objects/info/alternates subwithsub/sub +} + + +test_expect_success 'missing nested submodule alternate fails clone and submodule update' ' + test_when_finished "rm -rf supersuper-clone" && + test_must_fail git clone --recursive --reference supersuper2 supersuper2 supersuper-clone && + ( + cd supersuper-clone && + check_that_two_of_three_alternates_are_used && + # update of the submodule fails + test_must_fail git submodule update --init --recursive + ) +' + +test_expect_success 'missing nested submodule alternate in --reference-if-able mode' ' + test_when_finished "rm -rf supersuper-clone" && + git clone --recursive --reference-if-able supersuper2 supersuper2 supersuper-clone && + ( + cd supersuper-clone && + check_that_two_of_three_alternates_are_used && + # update of the submodule succeeds + git submodule update --init --recursive + ) +' test_done |