If there is a failure to lock a reference that is likely caused by a D/F conflict (e.g., trying to lock "refs/foo/bar" when reference "refs/foo" already exists), invoke verify_refname_available() to try to generate a more helpful error message. That function might not detect an error. For example, some non-reference file might be blocking the deletion of an otherwise-empty directory tree, or there might be a race with another process that just deleted the offending reference. In such cases, generate the strerror-based error message like before. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
		
			
				
	
	
		
			108 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			108 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
#!/bin/sh
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test_description='Test git update-ref with D/F conflicts'
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. ./test-lib.sh
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test_update_rejected () {
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	prefix="$1" &&
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	before="$2" &&
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	pack="$3" &&
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	create="$4" &&
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	error="$5" &&
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	printf "create $prefix/%s $C\n" $before |
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	git update-ref --stdin &&
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	git for-each-ref $prefix >unchanged &&
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	if $pack
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	then
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		git pack-refs --all
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	fi &&
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	printf "create $prefix/%s $C\n" $create >input &&
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	test_must_fail git update-ref --stdin <input 2>output.err &&
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	grep -F "$error" output.err &&
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	git for-each-ref $prefix >actual &&
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	test_cmp unchanged actual
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}
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Q="'"
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test_expect_success 'setup' '
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	git commit --allow-empty -m Initial &&
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	C=$(git rev-parse HEAD)
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'
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test_expect_success 'existing loose ref is a simple prefix of new' '
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	prefix=refs/1l &&
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	test_update_rejected $prefix "a c e" false "b c/x d" \
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		"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x$Q"
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'
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test_expect_success 'existing packed ref is a simple prefix of new' '
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	prefix=refs/1p &&
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	test_update_rejected $prefix "a c e" true "b c/x d" \
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		"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x$Q"
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'
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test_expect_success 'existing loose ref is a deeper prefix of new' '
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	prefix=refs/2l &&
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	test_update_rejected $prefix "a c e" false "b c/x/y d" \
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		"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x/y$Q"
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'
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test_expect_success 'existing packed ref is a deeper prefix of new' '
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	prefix=refs/2p &&
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	test_update_rejected $prefix "a c e" true "b c/x/y d" \
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		"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x/y$Q"
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'
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test_expect_success 'new ref is a simple prefix of existing loose' '
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	prefix=refs/3l &&
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	test_update_rejected $prefix "a c/x e" false "b c d" \
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		"$Q$prefix/c/x$Q exists; cannot create $Q$prefix/c$Q"
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'
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test_expect_success 'new ref is a simple prefix of existing packed' '
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	prefix=refs/3p &&
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	test_update_rejected $prefix "a c/x e" true "b c d" \
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		"$Q$prefix/c/x$Q exists; cannot create $Q$prefix/c$Q"
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'
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test_expect_success 'new ref is a deeper prefix of existing loose' '
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	prefix=refs/4l &&
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	test_update_rejected $prefix "a c/x/y e" false "b c d" \
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		"$Q$prefix/c/x/y$Q exists; cannot create $Q$prefix/c$Q"
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'
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test_expect_success 'new ref is a deeper prefix of existing packed' '
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	prefix=refs/4p &&
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	test_update_rejected $prefix "a c/x/y e" true "b c d" \
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		"$Q$prefix/c/x/y$Q exists; cannot create $Q$prefix/c$Q"
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'
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test_expect_success 'one new ref is a simple prefix of another' '
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	prefix=refs/5 &&
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	test_update_rejected $prefix "a e" false "b c c/x d" \
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		"cannot process $Q$prefix/c$Q and $Q$prefix/c/x$Q at the same time"
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'
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test_done
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