#!/bin/sh # # Copyright (C) 2006 Martin Waitz # 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