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Diffstat (limited to 'third_party/git/t/t5613-info-alternate.sh')
| -rwxr-xr-x | third_party/git/t/t5613-info-alternate.sh | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/third_party/git/t/t5613-info-alternate.sh b/third_party/git/t/t5613-info-alternate.sh new file mode 100755 index 0000000000..895f46bb91 --- /dev/null +++ b/third_party/git/t/t5613-info-alternate.sh @@ -0,0 +1,139 @@ +#!/bin/sh +# +# Copyright (C) 2006 Martin Waitz <tali@admingilde.org> +# + +test_description='test transitive info/alternate entries' +. ./test-lib.sh + +test_expect_success 'preparing first repository' ' + test_create_repo A && ( + cd A && + echo "Hello World" > file1 && + git add file1 && + git commit -m "Initial commit" file1 && + git repack -a -d && + git prune + ) +' + +test_expect_success 'preparing second repository' ' + git clone -l -s A B && ( + cd B && + echo "foo bar" > file2 && + git add file2 && + git commit -m "next commit" file2 && + git repack -a -d -l && + git prune + ) +' + +test_expect_success 'preparing third repository' ' + git clone -l -s B C && ( + cd C && + echo "Goodbye, cruel world" > file3 && + git add file3 && + git commit -m "one more" file3 && + git repack -a -d -l && + git prune + ) +' + +test_expect_success 'count-objects shows the alternates' ' + cat >expect <<-EOF && + alternate: $(pwd)/B/.git/objects + alternate: $(pwd)/A/.git/objects + EOF + git -C C count-objects -v >actual && + grep ^alternate: actual >actual.alternates && + test_cmp expect actual.alternates +' + +# Note: These tests depend on the hard-coded value of 5 as the maximum depth +# we will follow recursion. We start the depth at 0 and count links, not +# repositories. This means that in a chain like: +# +# A --> B --> C --> D --> E --> F --> G --> H +# 0 1 2 3 4 5 6 +# +# we are OK at "G", but break at "H", even though "H" is actually the 8th +# repository, not the 6th, which you might expect. Counting the links allows +# N+1 repositories, and counting from 0 to 5 inclusive allows 6 links. +# +# Note also that we must use "--bare -l" to make the link to H. The "-l" +# ensures we do not do a connectivity check, and the "--bare" makes sure +# we do not try to checkout the result (which needs objects), either of +# which would cause the clone to fail. +test_expect_success 'creating too deep nesting' ' + git clone -l -s C D && + git clone -l -s D E && + git clone -l -s E F && + git clone -l -s F G && + git clone --bare -l -s G H +' + +test_expect_success 'validity of seventh repository' ' + git -C G fsck +' + +test_expect_success 'invalidity of eighth repository' ' + test_must_fail git -C H fsck +' + +test_expect_success 'breaking of loops' ' + echo "$(pwd)"/B/.git/objects >>A/.git/objects/info/alternates && + git -C C fsck +' + +test_expect_success 'that info/alternates is necessary' ' + rm -f C/.git/objects/info/alternates && + test_must_fail git -C C fsck +' + +test_expect_success 'that relative alternate is possible for current dir' ' + echo "../../../B/.git/objects" >C/.git/objects/info/alternates && + git fsck +' + +test_expect_success 'that relative alternate is recursive' ' + git -C D fsck +' + +# we can reach "A" from our new repo both directly, and via "C". +# The deep/subdir is there to make sure we are not doing a stupid +# pure-text comparison of the alternate names. +test_expect_success 'relative duplicates are eliminated' ' + mkdir -p deep/subdir && + git init --bare deep/subdir/duplicate.git && + cat >deep/subdir/duplicate.git/objects/info/alternates <<-\EOF && + ../../../../C/.git/objects + ../../../../A/.git/objects + EOF + cat >expect <<-EOF && + alternate: $(pwd)/C/.git/objects + alternate: $(pwd)/B/.git/objects + alternate: $(pwd)/A/.git/objects + EOF + git -C deep/subdir/duplicate.git count-objects -v >actual && + grep ^alternate: actual >actual.alternates && + test_cmp expect actual.alternates +' + +test_expect_success CASE_INSENSITIVE_FS 'dup finding can be case-insensitive' ' + git init --bare insensitive.git && + # the previous entry for "A" will have used uppercase + cat >insensitive.git/objects/info/alternates <<-\EOF && + ../../C/.git/objects + ../../a/.git/objects + EOF + cat >expect <<-EOF && + alternate: $(pwd)/C/.git/objects + alternate: $(pwd)/B/.git/objects + alternate: $(pwd)/A/.git/objects + EOF + git -C insensitive.git count-objects -v >actual && + grep ^alternate: actual >actual.alternates && + test_cmp expect actual.alternates +' + +test_done |