In 4ac9006f83 (real_path: have callers use real_pathdup and
strbuf_realpath, 2016-12-12), we changed the xstrdup(real_path())
pattern to use real_pathdup() directly.
The problem with this change is that real_path() calls
strbuf_realpath() with die_on_error = 1 while real_pathdup() calls
it with die_on_error = 0. Meaning that in cases where real_path()
causes Git to die() with an error message, real_pathdup() is silent
and returns NULL instead.
The callers, however, are ill-prepared for that change, as they expect
the return value to be non-NULL (and otherwise the function died
with an appropriate error message).
Fix this by extending real_pathdup()'s signature to accept the
die_on_error flag and simply pass it through to strbuf_realpath(),
and then adjust all callers after a careful audit whether they would
handle NULLs well.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
		
	
		
			
				
	
	
		
			435 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			435 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
#!/bin/sh
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test_description='test separate work tree'
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. ./test-lib.sh
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test_expect_success 'setup' '
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	EMPTY_TREE=$(git write-tree) &&
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	EMPTY_BLOB=$(git hash-object -t blob --stdin </dev/null) &&
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	CHANGED_BLOB=$(echo changed | git hash-object -t blob --stdin) &&
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	EMPTY_BLOB7=$(echo $EMPTY_BLOB | sed "s/\(.......\).*/\1/") &&
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	CHANGED_BLOB7=$(echo $CHANGED_BLOB | sed "s/\(.......\).*/\1/") &&
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	mkdir -p work/sub/dir &&
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	mkdir -p work2 &&
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	mv .git repo.git
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'
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test_expect_success 'setup: helper for testing rev-parse' '
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	test_rev_parse() {
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		echo $1 >expected.bare &&
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		echo $2 >expected.inside-git &&
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		echo $3 >expected.inside-worktree &&
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		if test $# -ge 4
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		then
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			echo $4 >expected.prefix
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		fi &&
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		git rev-parse --is-bare-repository >actual.bare &&
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		git rev-parse --is-inside-git-dir >actual.inside-git &&
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		git rev-parse --is-inside-work-tree >actual.inside-worktree &&
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		if test $# -ge 4
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		then
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			git rev-parse --show-prefix >actual.prefix
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		fi &&
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		test_cmp expected.bare actual.bare &&
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		test_cmp expected.inside-git actual.inside-git &&
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		test_cmp expected.inside-worktree actual.inside-worktree &&
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		if test $# -ge 4
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		then
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			# rev-parse --show-prefix should output
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			# a single newline when at the top of the work tree,
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			# but we test for that separately.
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			test -z "$4" && ! test -s actual.prefix ||
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			test_cmp expected.prefix actual.prefix
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		fi
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	}
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'
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test_expect_success 'setup: core.worktree = relative path' '
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	sane_unset GIT_WORK_TREE &&
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	GIT_DIR=repo.git &&
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	GIT_CONFIG="$(pwd)"/$GIT_DIR/config &&
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	export GIT_DIR GIT_CONFIG &&
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	git config core.worktree ../work
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'
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test_expect_success 'outside' '
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	test_rev_parse false false false
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'
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test_expect_success 'inside work tree' '
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	(
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		cd work &&
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		GIT_DIR=../repo.git &&
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		GIT_CONFIG="$(pwd)"/$GIT_DIR/config &&
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		test_rev_parse false false true ""
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	)
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'
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test_expect_success 'empty prefix is actually written out' '
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	echo >expected &&
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	(
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		cd work &&
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		GIT_DIR=../repo.git &&
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		GIT_CONFIG="$(pwd)"/$GIT_DIR/config &&
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		git rev-parse --show-prefix >../actual
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	) &&
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	test_cmp expected actual
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'
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test_expect_success 'subdir of work tree' '
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	(
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		cd work/sub/dir &&
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		GIT_DIR=../../../repo.git &&
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		GIT_CONFIG="$(pwd)"/$GIT_DIR/config &&
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		test_rev_parse false false true sub/dir/
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	)
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'
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test_expect_success 'setup: core.worktree = absolute path' '
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	sane_unset GIT_WORK_TREE &&
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	GIT_DIR=$(pwd)/repo.git &&
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	GIT_CONFIG=$GIT_DIR/config &&
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	export GIT_DIR GIT_CONFIG &&
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	git config core.worktree "$(pwd)/work"
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'
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test_expect_success 'outside' '
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	test_rev_parse false false false &&
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	(
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		cd work2 &&
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		test_rev_parse false false false
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	)
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'
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test_expect_success 'inside work tree' '
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	(
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		cd work &&
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		test_rev_parse false false true ""
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	)
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'
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test_expect_success 'subdir of work tree' '
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	(
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		cd work/sub/dir &&
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		test_rev_parse false false true sub/dir/
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	)
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'
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test_expect_success 'setup: GIT_WORK_TREE=relative (override core.worktree)' '
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	GIT_DIR=$(pwd)/repo.git &&
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	GIT_CONFIG=$GIT_DIR/config &&
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	git config core.worktree non-existent &&
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	GIT_WORK_TREE=work &&
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	export GIT_DIR GIT_CONFIG GIT_WORK_TREE
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'
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test_expect_success 'outside' '
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	test_rev_parse false false false &&
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	(
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		cd work2 &&
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		test_rev_parse false false false
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	)
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'
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test_expect_success 'inside work tree' '
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	(
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		cd work &&
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		GIT_WORK_TREE=. &&
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		test_rev_parse false false true ""
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	)
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'
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test_expect_success 'subdir of work tree' '
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	(
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		cd work/sub/dir &&
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		GIT_WORK_TREE=../.. &&
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		test_rev_parse false false true sub/dir/
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	)
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'
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test_expect_success 'setup: GIT_WORK_TREE=absolute, below git dir' '
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	mv work repo.git/work &&
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	mv work2 repo.git/work2 &&
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	GIT_DIR=$(pwd)/repo.git &&
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	GIT_CONFIG=$GIT_DIR/config &&
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	GIT_WORK_TREE=$(pwd)/repo.git/work &&
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	export GIT_DIR GIT_CONFIG GIT_WORK_TREE
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'
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test_expect_success 'outside' '
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	echo outside &&
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	test_rev_parse false false false
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'
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test_expect_success 'in repo.git' '
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	(
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		cd repo.git &&
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		test_rev_parse false true false
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	) &&
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	(
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		cd repo.git/objects &&
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		test_rev_parse false true false
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	) &&
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	(
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		cd repo.git/work2 &&
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		test_rev_parse false true false
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	)
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'
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test_expect_success 'inside work tree' '
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	(
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		cd repo.git/work &&
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		test_rev_parse false true true ""
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	)
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'
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test_expect_success 'subdir of work tree' '
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	(
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		cd repo.git/work/sub/dir &&
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		test_rev_parse false true true sub/dir/
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	)
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'
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test_expect_success 'find work tree from repo' '
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	echo sub/dir/untracked >expected &&
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	cat <<-\EOF >repo.git/work/.gitignore &&
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	expected.*
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	actual.*
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	.gitignore
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	EOF
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	>repo.git/work/sub/dir/untracked &&
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	(
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		cd repo.git &&
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		git ls-files --others --exclude-standard >../actual
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	) &&
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	test_cmp expected actual
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'
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test_expect_success 'find work tree from work tree' '
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	echo sub/dir/tracked >expected &&
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	>repo.git/work/sub/dir/tracked &&
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	(
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		cd repo.git/work/sub/dir &&
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		git --git-dir=../../.. add tracked
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	) &&
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	(
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		cd repo.git &&
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		git ls-files >../actual
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	) &&
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	test_cmp expected actual
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'
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test_expect_success '_gently() groks relative GIT_DIR & GIT_WORK_TREE' '
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	(
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		cd repo.git/work/sub/dir &&
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		GIT_DIR=../../.. &&
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		GIT_WORK_TREE=../.. &&
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		GIT_PAGER= &&
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		export GIT_DIR GIT_WORK_TREE GIT_PAGER &&
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		git diff --exit-code tracked &&
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		echo changed >tracked &&
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		test_must_fail git diff --exit-code tracked
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	)
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'
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test_expect_success 'diff-index respects work tree under .git dir' '
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	cat >diff-index-cached.expected <<-EOF &&
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	:000000 100644 $_z40 $EMPTY_BLOB A	sub/dir/tracked
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	EOF
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	cat >diff-index.expected <<-EOF &&
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	:000000 100644 $_z40 $_z40 A	sub/dir/tracked
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	EOF
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	(
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		GIT_DIR=repo.git &&
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		GIT_WORK_TREE=repo.git/work &&
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		export GIT_DIR GIT_WORK_TREE &&
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		git diff-index $EMPTY_TREE >diff-index.actual &&
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		git diff-index --cached $EMPTY_TREE >diff-index-cached.actual
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	) &&
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	test_cmp diff-index.expected diff-index.actual &&
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	test_cmp diff-index-cached.expected diff-index-cached.actual
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'
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test_expect_success 'diff-files respects work tree under .git dir' '
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	cat >diff-files.expected <<-EOF &&
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	:100644 100644 $EMPTY_BLOB $_z40 M	sub/dir/tracked
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	EOF
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	(
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		GIT_DIR=repo.git &&
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		GIT_WORK_TREE=repo.git/work &&
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		export GIT_DIR GIT_WORK_TREE &&
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		git diff-files >diff-files.actual
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	) &&
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	test_cmp diff-files.expected diff-files.actual
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'
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test_expect_success 'git diff respects work tree under .git dir' '
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	cat >diff-TREE.expected <<-EOF &&
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	diff --git a/sub/dir/tracked b/sub/dir/tracked
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	new file mode 100644
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	index 0000000..$CHANGED_BLOB7
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	--- /dev/null
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	+++ b/sub/dir/tracked
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	@@ -0,0 +1 @@
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	+changed
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	EOF
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	cat >diff-TREE-cached.expected <<-EOF &&
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	diff --git a/sub/dir/tracked b/sub/dir/tracked
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	new file mode 100644
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	index 0000000..$EMPTY_BLOB7
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	EOF
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	cat >diff-FILES.expected <<-EOF &&
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	diff --git a/sub/dir/tracked b/sub/dir/tracked
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	index $EMPTY_BLOB7..$CHANGED_BLOB7 100644
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	--- a/sub/dir/tracked
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	+++ b/sub/dir/tracked
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	@@ -0,0 +1 @@
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	+changed
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	EOF
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	(
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		GIT_DIR=repo.git &&
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		GIT_WORK_TREE=repo.git/work &&
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		export GIT_DIR GIT_WORK_TREE &&
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		git diff $EMPTY_TREE >diff-TREE.actual &&
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		git diff --cached $EMPTY_TREE >diff-TREE-cached.actual &&
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		git diff >diff-FILES.actual
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	) &&
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	test_cmp diff-TREE.expected diff-TREE.actual &&
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	test_cmp diff-TREE-cached.expected diff-TREE-cached.actual &&
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	test_cmp diff-FILES.expected diff-FILES.actual
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'
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test_expect_success 'git grep' '
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	echo dir/tracked >expected.grep &&
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	(
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		cd repo.git/work/sub &&
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		GIT_DIR=../.. &&
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		GIT_WORK_TREE=.. &&
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		export GIT_DIR GIT_WORK_TREE &&
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		git grep -l changed >../../../actual.grep
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	) &&
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	test_cmp expected.grep actual.grep
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'
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test_expect_success 'git commit' '
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	(
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		cd repo.git &&
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		GIT_DIR=. GIT_WORK_TREE=work git commit -a -m done
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	)
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'
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test_expect_success 'absolute pathspec should fail gracefully' '
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	(
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		cd repo.git &&
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		test_might_fail git config --unset core.worktree &&
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		test_must_fail git log HEAD -- /home
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	)
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'
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test_expect_success 'make_relative_path handles double slashes in GIT_DIR' '
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	>dummy_file &&
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	echo git --git-dir="$(pwd)//repo.git" --work-tree="$(pwd)" add dummy_file &&
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	git --git-dir="$(pwd)//repo.git" --work-tree="$(pwd)" add dummy_file
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'
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test_expect_success 'relative $GIT_WORK_TREE and git subprocesses' '
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	GIT_DIR=repo.git GIT_WORK_TREE=repo.git/work \
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	test-subprocess --setup-work-tree rev-parse --show-toplevel >actual &&
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	echo "$(pwd)/repo.git/work" >expected &&
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	test_cmp expected actual
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'
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test_expect_success 'Multi-worktree setup' '
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	mkdir work &&
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	mkdir -p repo.git/repos/foo &&
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	cp repo.git/HEAD repo.git/index repo.git/repos/foo &&
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	test_might_fail cp repo.git/sharedindex.* repo.git/repos/foo &&
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	sane_unset GIT_DIR GIT_CONFIG GIT_WORK_TREE
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'
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test_expect_success 'GIT_DIR set (1)' '
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	echo "gitdir: repo.git/repos/foo" >gitfile &&
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	echo ../.. >repo.git/repos/foo/commondir &&
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	(
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		cd work &&
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		GIT_DIR=../gitfile git rev-parse --git-common-dir >actual &&
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		test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect &&
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		test_cmp expect actual
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	)
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'
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test_expect_success 'GIT_DIR set (2)' '
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	echo "gitdir: repo.git/repos/foo" >gitfile &&
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	echo "$(pwd)/repo.git" >repo.git/repos/foo/commondir &&
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	(
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		cd work &&
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		GIT_DIR=../gitfile git rev-parse --git-common-dir >actual &&
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		test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect &&
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		test_cmp expect actual
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	)
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'
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test_expect_success 'Auto discovery' '
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	echo "gitdir: repo.git/repos/foo" >.git &&
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	echo ../.. >repo.git/repos/foo/commondir &&
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	(
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		cd work &&
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		git rev-parse --git-common-dir >actual &&
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		test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect &&
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		test_cmp expect actual &&
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		echo haha >data1 &&
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		git add data1 &&
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		git ls-files --full-name :/ | grep data1 >actual &&
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		echo work/data1 >expect &&
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		test_cmp expect actual
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	)
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'
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test_expect_success '$GIT_DIR/common overrides core.worktree' '
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	mkdir elsewhere &&
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	git --git-dir=repo.git config core.worktree "$TRASH_DIRECTORY/elsewhere" &&
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	echo "gitdir: repo.git/repos/foo" >.git &&
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	echo ../.. >repo.git/repos/foo/commondir &&
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	(
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		cd work &&
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		git rev-parse --git-common-dir >actual &&
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		test-path-utils real_path "$TRASH_DIRECTORY/repo.git" >expect &&
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		test_cmp expect actual &&
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		echo haha >data2 &&
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		git add data2 &&
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		git ls-files --full-name :/ | grep data2 >actual &&
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		echo work/data2 >expect &&
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		test_cmp expect actual
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	)
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'
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test_expect_success '$GIT_WORK_TREE overrides $GIT_DIR/common' '
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	echo "gitdir: repo.git/repos/foo" >.git &&
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	echo ../.. >repo.git/repos/foo/commondir &&
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						|
	(
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		cd work &&
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		echo haha >data3 &&
 | 
						|
		git --git-dir=../.git --work-tree=. add data3 &&
 | 
						|
		git ls-files --full-name -- :/ | grep data3 >actual &&
 | 
						|
		echo data3 >expect &&
 | 
						|
		test_cmp expect actual
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
test_expect_success 'error out gracefully on invalid $GIT_WORK_TREE' '
 | 
						|
	(
 | 
						|
		GIT_WORK_TREE=/.invalid/work/tree &&
 | 
						|
		export GIT_WORK_TREE &&
 | 
						|
		test_expect_code 128 git rev-parse
 | 
						|
	)
 | 
						|
'
 | 
						|
 | 
						|
test_done
 |