git/t/t7610-mergetool.sh
David Aguilar ec245ba049 mergetool: Provide an empty file when needed
Some merge tools cannot cope when $LOCAL, $BASE, or $REMOTE are missing.
$BASE can be missing when two branches independently add the same
filename.

Provide an empty file to make these tools happy.

When a delete/modify conflict occurs, $LOCAL and $REMOTE can also be
missing. We have special case code to handle such case so this change
may not affect that codepath, but try to be consistent and create an
empty file for them anyway.

Reported-by: Jason Wenger <jcwenger@gmail.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-23 11:50:22 -08:00

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#!/bin/sh
#
# Copyright (c) 2008 Charles Bailey
#
test_description='git mergetool
Testing basic merge tool invocation'
. ./test-lib.sh
# All the mergetool test work by checking out a temporary branch based
# off 'branch1' and then merging in master and checking the results of
# running mergetool
test_expect_success 'setup' '
git config rerere.enabled true &&
echo master >file1 &&
echo master spaced >"spaced name" &&
echo master file11 >file11 &&
echo master file12 >file12 &&
echo master file13 >file13 &&
echo master file14 >file14 &&
mkdir subdir &&
echo master sub >subdir/file3 &&
test_create_repo submod &&
(
cd submod &&
: >foo &&
git add foo &&
git commit -m "Add foo"
) &&
git submodule add git://example.com/submod submod &&
git add file1 "spaced name" file1[1-4] subdir/file3 .gitmodules submod &&
git commit -m "add initial versions" &&
git checkout -b branch1 master &&
git submodule update -N &&
echo branch1 change >file1 &&
echo branch1 newfile >file2 &&
echo branch1 spaced >"spaced name" &&
echo branch1 both added >both &&
echo branch1 change file11 >file11 &&
echo branch1 change file13 >file13 &&
echo branch1 sub >subdir/file3 &&
(
cd submod &&
echo branch1 submodule >bar &&
git add bar &&
git commit -m "Add bar on branch1" &&
git checkout -b submod-branch1
) &&
git add file1 "spaced name" file11 file13 file2 subdir/file3 submod &&
git add both &&
git rm file12 &&
git commit -m "branch1 changes" &&
git checkout master &&
git submodule update -N &&
echo master updated >file1 &&
echo master new >file2 &&
echo master updated spaced >"spaced name" &&
echo master both added >both &&
echo master updated file12 >file12 &&
echo master updated file14 >file14 &&
echo master new sub >subdir/file3 &&
(
cd submod &&
echo master submodule >bar &&
git add bar &&
git commit -m "Add bar on master" &&
git checkout -b submod-master
) &&
git add file1 "spaced name" file12 file14 file2 subdir/file3 submod &&
git add both &&
git rm file11 &&
git commit -m "master updates" &&
git config merge.tool mytool &&
git config mergetool.mytool.cmd "cat \"\$REMOTE\" >\"\$MERGED\"" &&
git config mergetool.mytool.trustExitCode true &&
git config mergetool.mybase.cmd "cat \"\$BASE\" >\"\$MERGED\"" &&
git config mergetool.mybase.trustExitCode true
'
test_expect_success 'custom mergetool' '
git checkout -b test1 branch1 &&
git submodule update -N &&
test_must_fail git merge master >/dev/null 2>&1 &&
( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "" | git mergetool file1 file1 ) &&
( yes "" | git mergetool file2 "spaced name" >/dev/null 2>&1 ) &&
( yes "" | git mergetool subdir/file3 >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file12 >/dev/null 2>&1 ) &&
( yes "l" | git mergetool submod >/dev/null 2>&1 ) &&
test "$(cat file1)" = "master updated" &&
test "$(cat file2)" = "master new" &&
test "$(cat subdir/file3)" = "master new sub" &&
test "$(cat submod/bar)" = "branch1 submodule" &&
git commit -m "branch1 resolved with mergetool"
'
test_expect_success 'mergetool crlf' '
git config core.autocrlf true &&
git checkout -b test2 branch1 &&
test_must_fail git merge master >/dev/null 2>&1 &&
( yes "" | git mergetool file1 >/dev/null 2>&1 ) &&
( yes "" | git mergetool file2 >/dev/null 2>&1 ) &&
( yes "" | git mergetool "spaced name" >/dev/null 2>&1 ) &&
( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "" | git mergetool subdir/file3 >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file12 >/dev/null 2>&1 ) &&
( yes "r" | git mergetool submod >/dev/null 2>&1 ) &&
test "$(printf x | cat file1 -)" = "$(printf "master updated\r\nx")" &&
test "$(printf x | cat file2 -)" = "$(printf "master new\r\nx")" &&
test "$(printf x | cat subdir/file3 -)" = "$(printf "master new sub\r\nx")" &&
git submodule update -N &&
test "$(cat submod/bar)" = "master submodule" &&
git commit -m "branch1 resolved with mergetool - autocrlf" &&
git config core.autocrlf false &&
git reset --hard
'
test_expect_success 'mergetool in subdir' '
git checkout -b test3 branch1 &&
git submodule update -N &&
(
cd subdir &&
test_must_fail git merge master >/dev/null 2>&1 &&
( yes "" | git mergetool file3 >/dev/null 2>&1 ) &&
test "$(cat file3)" = "master new sub"
)
'
test_expect_success 'mergetool on file in parent dir' '
(
cd subdir &&
( yes "" | git mergetool ../file1 >/dev/null 2>&1 ) &&
( yes "" | git mergetool ../file2 ../spaced\ name >/dev/null 2>&1 ) &&
( yes "" | git mergetool ../both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool ../file11 >/dev/null 2>&1 ) &&
( yes "d" | git mergetool ../file12 >/dev/null 2>&1 ) &&
( yes "l" | git mergetool ../submod >/dev/null 2>&1 ) &&
test "$(cat ../file1)" = "master updated" &&
test "$(cat ../file2)" = "master new" &&
test "$(cat ../submod/bar)" = "branch1 submodule" &&
git commit -m "branch1 resolved with mergetool - subdir"
)
'
test_expect_success 'mergetool skips autoresolved' '
git checkout -b test4 branch1 &&
git submodule update -N &&
test_must_fail git merge master &&
test -n "$(git ls-files -u)" &&
( yes "d" | git mergetool file11 >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file12 >/dev/null 2>&1 ) &&
( yes "l" | git mergetool submod >/dev/null 2>&1 ) &&
output="$(git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git reset --hard
'
test_expect_success 'mergetool merges all from subdir' '
(
cd subdir &&
git config rerere.enabled false &&
test_must_fail git merge master &&
( yes "r" | git mergetool ../submod ) &&
( yes "d" "d" | git mergetool --no-prompt ) &&
test "$(cat ../file1)" = "master updated" &&
test "$(cat ../file2)" = "master new" &&
test "$(cat file3)" = "master new sub" &&
( cd .. && git submodule update -N ) &&
test "$(cat ../submod/bar)" = "master submodule" &&
git commit -m "branch2 resolved by mergetool from subdir"
)
'
test_expect_success 'mergetool skips resolved paths when rerere is active' '
git config rerere.enabled true &&
rm -rf .git/rr-cache &&
git checkout -b test5 branch1
git submodule update -N &&
test_must_fail git merge master >/dev/null 2>&1 &&
( yes "l" | git mergetool --no-prompt submod >/dev/null 2>&1 ) &&
( yes "d" "d" | git mergetool --no-prompt >/dev/null 2>&1 ) &&
git submodule update -N &&
output="$(yes "n" | git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git reset --hard
'
test_expect_success 'mergetool takes partial path' '
git config rerere.enabled false &&
git checkout -b test12 branch1 &&
git submodule update -N &&
test_must_fail git merge master &&
#shouldnt need these lines
#( yes "d" | git mergetool file11 >/dev/null 2>&1 ) &&
#( yes "d" | git mergetool file12 >/dev/null 2>&1 ) &&
#( yes "l" | git mergetool submod >/dev/null 2>&1 ) &&
#( yes "" | git mergetool file1 file2 >/dev/null 2>&1 ) &&
( yes "" | git mergetool subdir ) &&
test "$(cat subdir/file3)" = "master new sub" &&
git reset --hard
'
test_expect_success 'deleted vs modified submodule' '
git checkout -b test6 branch1 &&
git submodule update -N &&
mv submod submod-movedaside &&
git rm submod &&
git commit -m "Submodule deleted from branch" &&
git checkout -b test6.a test6 &&
test_must_fail git merge master &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "r" | git mergetool submod ) &&
rmdir submod && mv submod-movedaside submod &&
test "$(cat submod/bar)" = "branch1 submodule" &&
git submodule update -N &&
test "$(cat submod/bar)" = "master submodule" &&
output="$(git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git commit -m "Merge resolved by keeping module" &&
mv submod submod-movedaside &&
git checkout -b test6.b test6 &&
git submodule update -N &&
test_must_fail git merge master &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "l" | git mergetool submod ) &&
test ! -e submod &&
output="$(git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git commit -m "Merge resolved by deleting module" &&
mv submod-movedaside submod &&
git checkout -b test6.c master &&
git submodule update -N &&
test_must_fail git merge test6 &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "r" | git mergetool submod ) &&
test ! -e submod &&
test -d submod.orig &&
git submodule update -N &&
output="$(git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git commit -m "Merge resolved by deleting module" &&
mv submod.orig submod &&
git checkout -b test6.d master &&
git submodule update -N &&
test_must_fail git merge test6 &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "l" | git mergetool submod ) &&
test "$(cat submod/bar)" = "master submodule" &&
git submodule update -N &&
test "$(cat submod/bar)" = "master submodule" &&
output="$(git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git commit -m "Merge resolved by keeping module" &&
git reset --hard HEAD
'
test_expect_success 'file vs modified submodule' '
git checkout -b test7 branch1 &&
git submodule update -N &&
mv submod submod-movedaside &&
git rm submod &&
echo not a submodule >submod &&
git add submod &&
git commit -m "Submodule path becomes file" &&
git checkout -b test7.a branch1 &&
test_must_fail git merge master &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "r" | git mergetool submod ) &&
rmdir submod && mv submod-movedaside submod &&
test "$(cat submod/bar)" = "branch1 submodule" &&
git submodule update -N &&
test "$(cat submod/bar)" = "master submodule" &&
output="$(git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git commit -m "Merge resolved by keeping module" &&
mv submod submod-movedaside &&
git checkout -b test7.b test7 &&
test_must_fail git merge master &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "l" | git mergetool submod ) &&
git submodule update -N &&
test "$(cat submod)" = "not a submodule" &&
output="$(git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git commit -m "Merge resolved by keeping file" &&
git checkout -b test7.c master &&
rmdir submod && mv submod-movedaside submod &&
test ! -e submod.orig &&
git submodule update -N &&
test_must_fail git merge test7 &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "r" | git mergetool submod ) &&
test -d submod.orig &&
git submodule update -N &&
test "$(cat submod)" = "not a submodule" &&
output="$(git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git commit -m "Merge resolved by keeping file" &&
git checkout -b test7.d master &&
rmdir submod && mv submod.orig submod &&
git submodule update -N &&
test_must_fail git merge test7 &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
( yes "" | git mergetool both>/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "l" | git mergetool submod ) &&
test "$(cat submod/bar)" = "master submodule" &&
git submodule update -N &&
test "$(cat submod/bar)" = "master submodule" &&
output="$(git mergetool --no-prompt)" &&
test "$output" = "No files need merging" &&
git commit -m "Merge resolved by keeping module"
'
test_expect_success 'submodule in subdirectory' '
git checkout -b test10 branch1 &&
git submodule update -N &&
(
cd subdir &&
test_create_repo subdir_module &&
(
cd subdir_module &&
: >file15 &&
git add file15 &&
git commit -m "add initial versions"
)
) &&
git submodule add git://example.com/subsubmodule subdir/subdir_module &&
git add subdir/subdir_module &&
git commit -m "add submodule in subdirectory" &&
git checkout -b test10.a test10 &&
git submodule update -N &&
(
cd subdir/subdir_module &&
git checkout -b super10.a &&
echo test10.a >file15 &&
git add file15 &&
git commit -m "on branch 10.a"
) &&
git add subdir/subdir_module &&
git commit -m "change submodule in subdirectory on test10.a" &&
git checkout -b test10.b test10 &&
git submodule update -N &&
(
cd subdir/subdir_module &&
git checkout -b super10.b &&
echo test10.b >file15 &&
git add file15 &&
git commit -m "on branch 10.b"
) &&
git add subdir/subdir_module &&
git commit -m "change submodule in subdirectory on test10.b" &&
test_must_fail git merge test10.a >/dev/null 2>&1 &&
(
cd subdir &&
( yes "l" | git mergetool subdir_module )
) &&
test "$(cat subdir/subdir_module/file15)" = "test10.b" &&
git submodule update -N &&
test "$(cat subdir/subdir_module/file15)" = "test10.b" &&
git reset --hard &&
git submodule update -N &&
test_must_fail git merge test10.a >/dev/null 2>&1 &&
( yes "r" | git mergetool subdir/subdir_module ) &&
test "$(cat subdir/subdir_module/file15)" = "test10.b" &&
git submodule update -N &&
test "$(cat subdir/subdir_module/file15)" = "test10.a" &&
git commit -m "branch1 resolved with mergetool" &&
rm -rf subdir/subdir_module
'
test_expect_success 'directory vs modified submodule' '
git checkout -b test11 branch1 &&
mv submod submod-movedaside &&
git rm submod &&
mkdir submod &&
echo not a submodule >submod/file16 &&
git add submod/file16 &&
git commit -m "Submodule path becomes directory" &&
test_must_fail git merge master &&
test -n "$(git ls-files -u)" &&
( yes "l" | git mergetool submod ) &&
test "$(cat submod/file16)" = "not a submodule" &&
rm -rf submod.orig &&
git reset --hard >/dev/null 2>&1 &&
test_must_fail git merge master &&
test -n "$(git ls-files -u)" &&
test ! -e submod.orig &&
( yes "r" | git mergetool submod ) &&
test -d submod.orig &&
test "$(cat submod.orig/file16)" = "not a submodule" &&
rm -r submod.orig &&
mv submod-movedaside/.git submod &&
( cd submod && git clean -f && git reset --hard ) &&
git submodule update -N &&
test "$(cat submod/bar)" = "master submodule" &&
git reset --hard >/dev/null 2>&1 && rm -rf submod-movedaside &&
git checkout -b test11.c master &&
git submodule update -N &&
test_must_fail git merge test11 &&
test -n "$(git ls-files -u)" &&
( yes "l" | git mergetool submod ) &&
git submodule update -N &&
test "$(cat submod/bar)" = "master submodule" &&
git reset --hard >/dev/null 2>&1 &&
git submodule update -N &&
test_must_fail git merge test11 &&
test -n "$(git ls-files -u)" &&
test ! -e submod.orig &&
( yes "r" | git mergetool submod ) &&
test "$(cat submod/file16)" = "not a submodule" &&
git reset --hard master >/dev/null 2>&1 &&
( cd submod && git clean -f && git reset --hard ) &&
git submodule update -N
'
test_expect_success 'file with no base' '
git checkout -b test13 branch1 &&
test_must_fail git merge master &&
git mergetool --no-prompt --tool mybase -- both &&
>expected &&
test_cmp both expected &&
git reset --hard master >/dev/null 2>&1
'
test_done