[PATCH v3] 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. $LOCAL and $REMOTE can be missing when a delete/modify conflict occurs.
Provide an empty file to make these tools happy.
Reported-by: Jason Wenger <jcwenger@gmail.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
---
We now create the empty file in checkout_staged_file()
as part of the error checking section.
git-mergetool.sh | 8 +++++---
t/t7610-mergetool.sh | 27 ++++++++++++++++++++++++++-
2 files changed, 31 insertions(+), 4 deletions(-)
diff --git a/git-mergetool.sh b/git-mergetool.sh
index 085e213..24bedc5 100755
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -185,6 +185,8 @@ checkout_staged_file () {
if test $? -eq 0 -a -n "$tmpfile" ; then
mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
+ else
+ >"$3"
fi
}
@@ -224,9 +226,9 @@ merge_file () {
mv -- "$MERGED" "$BACKUP"
cp -- "$BACKUP" "$MERGED"
- base_present && checkout_staged_file 1 "$MERGED" "$BASE"
- local_present && checkout_staged_file 2 "$MERGED" "$LOCAL"
- remote_present && checkout_staged_file 3 "$MERGED" "$REMOTE"
+ checkout_staged_file 1 "$MERGED" "$BASE"
+ checkout_staged_file 2 "$MERGED" "$LOCAL"
+ checkout_staged_file 3 "$MERGED" "$REMOTE"
if test -z "$local_mode" -o -z "$remote_mode"; then
echo "Deleted merge conflict for '$MERGED':"
diff --git a/t/t7610-mergetool.sh b/t/t7610-mergetool.sh
index 4aab2a7..2272743 100755
--- a/t/t7610-mergetool.sh
+++ b/t/t7610-mergetool.sh
@@ -39,6 +39,7 @@ test_expect_success 'setup' '
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 &&
@@ -50,6 +51,7 @@ test_expect_success 'setup' '
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" &&
@@ -58,6 +60,7 @@ test_expect_success 'setup' '
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 &&
@@ -69,18 +72,22 @@ test_expect_success 'setup' '
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.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 ) &&
@@ -101,6 +108,7 @@ test_expect_success 'mergetool crlf' '
( 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 ) &&
@@ -131,6 +139,7 @@ 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 ) &&
@@ -212,6 +221,7 @@ test_expect_success 'deleted vs modified submodule' '
test_must_fail git merge master &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
+ ( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "r" | git mergetool submod ) &&
rmdir submod && mv submod-movedaside submod &&
@@ -228,6 +238,7 @@ test_expect_success 'deleted vs modified submodule' '
test_must_fail git merge master &&
test -n "$(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 &&
@@ -241,6 +252,7 @@ test_expect_success 'deleted vs modified submodule' '
test_must_fail git merge test6 &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
+ ( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "r" | git mergetool submod ) &&
test ! -e submod &&
@@ -256,6 +268,7 @@ test_expect_success 'deleted vs modified submodule' '
test_must_fail git merge test6 &&
test -n "$(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 "$(cat submod/bar)" = "master submodule" &&
@@ -279,6 +292,7 @@ test_expect_success 'file vs modified submodule' '
test_must_fail git merge master &&
test -n "$(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 &&
@@ -294,6 +308,7 @@ test_expect_success 'file vs modified submodule' '
test_must_fail git merge master &&
test -n "$(git ls-files -u)" &&
( yes "" | git mergetool file1 file2 spaced\ name subdir/file3 >/dev/null 2>&1 ) &&
+ ( yes "" | git mergetool both >/dev/null 2>&1 ) &&
( yes "d" | git mergetool file11 file12 >/dev/null 2>&1 ) &&
( yes "l" | git mergetool submod ) &&
git submodule update -N &&
@@ -309,6 +324,7 @@ test_expect_success 'file vs modified submodule' '
test_must_fail git merge test7 &&
test -n "$(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 &&
@@ -324,6 +340,7 @@ test_expect_success 'file vs modified submodule' '
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" &&
@@ -445,4 +462,12 @@ test_expect_success 'directory vs modified submodule' '
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 -- base &&
+ test "$(cat "$MERGED")" = "" &&
+ git reset --hard master >/dev/null 2>&1
+'
+
test_done
--
1.7.9.rc2.1.g36b4c
