diff options
Diffstat (limited to 't/t5613-info-alternate.sh')
| -rwxr-xr-x | t/t5613-info-alternate.sh | 205 |
1 files changed, 116 insertions, 89 deletions
diff --git a/t/t5613-info-alternate.sh b/t/t5613-info-alternate.sh index 9cd2626..895f46b 100755 --- a/t/t5613-info-alternate.sh +++ b/t/t5613-info-alternate.sh @@ -6,107 +6,134 @@ test_description='test transitive info/alternate entries' . ./test-lib.sh -# test that a file is not reachable in the current repository -# but that it is after creating a info/alternate entry -reachable_via() { - alternate="$1" - file="$2" - if git cat-file -e "HEAD:$file"; then return 1; fi - echo "$alternate" >> .git/objects/info/alternate - git cat-file -e "HEAD:$file" -} - -test_valid_repo() { - git fsck --full > fsck.log && - test_line_count = 0 fsck.log -} - -base_dir=$(pwd) - -test_expect_success 'preparing first repository' \ -'test_create_repo A && cd A && -echo "Hello World" > file1 && -git add file1 && -git commit -m "Initial commit" file1 && -git repack -a -d && -git prune' - -cd "$base_dir" - -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' - -cd "$base_dir" - -test_expect_success 'preparing third repository' \ -'git clone -l -s B C && cd C && -echo "Goodbye, cruel world" > file3 && -git add file3 && -git commit -m "one more" file3 && -git repack -a -d -l && -git prune' - -cd "$base_dir" - -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 'invalidity of deepest repository' \ -'cd H && { - test_valid_repo - test $? -ne 0 -}' - -cd "$base_dir" +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 'validity of third repository' \ -'cd C && -test_valid_repo' +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 + ) +' -cd "$base_dir" +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 'validity of fourth repository' \ -'cd D && -test_valid_repo' +test_expect_success 'count-objects shows the alternates' ' + cat >expect <<-EOF && + alternate: $(pwd)/B/.git/objects + alternate: $(pwd)/A/.git/objects + EOF + git -C C count-objects -v >actual && + grep ^alternate: actual >actual.alternates && + test_cmp expect actual.alternates +' -cd "$base_dir" +# 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 'breaking of loops' \ -'echo "$base_dir"/B/.git/objects >> "$base_dir"/A/.git/objects/info/alternates&& -cd C && -test_valid_repo' +test_expect_success 'validity of seventh repository' ' + git -C G fsck +' -cd "$base_dir" +test_expect_success 'invalidity of eighth repository' ' + test_must_fail git -C H fsck +' -test_expect_success 'that info/alternates is necessary' \ -'cd C && -rm -f .git/objects/info/alternates && -! (test_valid_repo)' +test_expect_success 'breaking of loops' ' + echo "$(pwd)"/B/.git/objects >>A/.git/objects/info/alternates && + git -C C fsck +' -cd "$base_dir" +test_expect_success 'that info/alternates is necessary' ' + rm -f C/.git/objects/info/alternates && + test_must_fail git -C C fsck +' -test_expect_success 'that relative alternate is possible for current dir' \ -'cd C && -echo "../../../B/.git/objects" > .git/objects/info/alternates && -test_valid_repo' +test_expect_success 'that relative alternate is possible for current dir' ' + echo "../../../B/.git/objects" >C/.git/objects/info/alternates && + git fsck +' -cd "$base_dir" +test_expect_success 'that relative alternate is recursive' ' + git -C D fsck +' -test_expect_success \ - 'that relative alternate is only possible for current dir' ' - cd D && - ! (test_valid_repo) +# 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: $(pwd)/A/.git/objects + EOF + git -C deep/subdir/duplicate.git count-objects -v >actual && + grep ^alternate: actual >actual.alternates && + test_cmp expect actual.alternates ' -cd "$base_dir" +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 |