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-rwxr-xr-xt/t6406-merge-attr.sh233
1 files changed, 233 insertions, 0 deletions
diff --git a/t/t6406-merge-attr.sh b/t/t6406-merge-attr.sh
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+#!/bin/sh
+#
+# Copyright (c) 2007 Junio C Hamano
+#
+
+test_description='per path merge controlled by merge attribute'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+test_expect_success setup '
+
+ for f in text binary union
+ do
+ echo Initial >$f && git add $f || return 1
+ done &&
+ test_tick &&
+ git commit -m Initial &&
+
+ git branch side &&
+ for f in text binary union
+ do
+ echo Main >>$f && git add $f || return 1
+ done &&
+ test_tick &&
+ git commit -m Main &&
+
+ git checkout side &&
+ for f in text binary union
+ do
+ echo Side >>$f && git add $f || return 1
+ done &&
+ test_tick &&
+ git commit -m Side &&
+
+ git tag anchor &&
+
+ cat >./custom-merge <<-\EOF &&
+ #!/bin/sh
+
+ orig="$1" ours="$2" theirs="$3" exit="$4" path=$5
+ (
+ echo "orig is $orig"
+ echo "ours is $ours"
+ echo "theirs is $theirs"
+ echo "path is $path"
+ echo "=== orig ==="
+ cat "$orig"
+ echo "=== ours ==="
+ cat "$ours"
+ echo "=== theirs ==="
+ cat "$theirs"
+ ) >"$ours+"
+ cat "$ours+" >"$ours"
+ rm -f "$ours+"
+ exit "$exit"
+ EOF
+ chmod +x ./custom-merge
+'
+
+test_expect_success merge '
+
+ cat >.gitattributes <<-\EOF &&
+ binary -merge
+ union merge=union
+ EOF
+
+ if git merge main
+ then
+ echo Gaah, should have conflicted
+ false
+ else
+ echo Ok, conflicted.
+ fi
+'
+
+test_expect_success 'check merge result in index' '
+
+ git ls-files -u | grep binary &&
+ git ls-files -u | grep text &&
+ ! (git ls-files -u | grep union)
+
+'
+
+test_expect_success 'check merge result in working tree' '
+
+ git cat-file -p HEAD:binary >binary-orig &&
+ grep "<<<<<<<" text &&
+ cmp binary-orig binary &&
+ ! grep "<<<<<<<" union &&
+ grep Main union &&
+ grep Side union
+
+'
+
+test_expect_success 'retry the merge with longer context' '
+ echo text conflict-marker-size=32 >>.gitattributes &&
+ git checkout -m text &&
+ sed -ne "/^\([<=>]\)\1\1\1*/{
+ s/ .*$//
+ p
+ }" >actual text &&
+ grep ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>" actual &&
+ grep "================================" actual &&
+ grep "<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<" actual
+'
+
+test_expect_success 'custom merge backend' '
+
+ echo "* merge=union" >.gitattributes &&
+ echo "text merge=custom" >>.gitattributes &&
+
+ git reset --hard anchor &&
+ git config --replace-all \
+ merge.custom.driver "./custom-merge %O %A %B 0 %P" &&
+ git config --replace-all \
+ merge.custom.name "custom merge driver for testing" &&
+
+ git merge main &&
+
+ cmp binary union &&
+ sed -e 1,3d text >check-1 &&
+ o=$(git unpack-file main^:text) &&
+ a=$(git unpack-file side^:text) &&
+ b=$(git unpack-file main:text) &&
+ sh -c "./custom-merge $o $a $b 0 text" &&
+ sed -e 1,3d $a >check-2 &&
+ cmp check-1 check-2 &&
+ rm -f $o $a $b
+'
+
+test_expect_success 'custom merge backend' '
+
+ git reset --hard anchor &&
+ git config --replace-all \
+ merge.custom.driver "./custom-merge %O %A %B 1 %P" &&
+ git config --replace-all \
+ merge.custom.name "custom merge driver for testing" &&
+
+ if git merge main
+ then
+ echo "Eh? should have conflicted"
+ false
+ else
+ echo "Ok, conflicted"
+ fi &&
+
+ cmp binary union &&
+ sed -e 1,3d text >check-1 &&
+ o=$(git unpack-file main^:text) &&
+ a=$(git unpack-file anchor:text) &&
+ b=$(git unpack-file main:text) &&
+ sh -c "./custom-merge $o $a $b 0 text" &&
+ sed -e 1,3d $a >check-2 &&
+ cmp check-1 check-2 &&
+ sed -e 1,3d -e 4q $a >check-3 &&
+ echo "path is text" >expect &&
+ cmp expect check-3 &&
+ rm -f $o $a $b
+'
+
+test_expect_success 'up-to-date merge without common ancestor' '
+ git init repo1 &&
+ git init repo2 &&
+ test_tick &&
+ (
+ cd repo1 &&
+ >a &&
+ git add a &&
+ git commit -m initial
+ ) &&
+ test_tick &&
+ (
+ cd repo2 &&
+ git commit --allow-empty -m initial
+ ) &&
+ test_tick &&
+ (
+ cd repo1 &&
+ git fetch ../repo2 main &&
+ git merge --allow-unrelated-histories FETCH_HEAD
+ )
+'
+
+test_expect_success 'custom merge does not lock index' '
+ git reset --hard anchor &&
+ write_script sleep-an-hour.sh <<-\EOF &&
+ sleep 3600 &
+ echo $! >sleep.pid
+ EOF
+
+ test_write_lines >.gitattributes \
+ "* merge=ours" "text merge=sleep-an-hour" &&
+ test_config merge.ours.driver true &&
+ test_config merge.sleep-an-hour.driver ./sleep-an-hour.sh &&
+
+ # We are testing that the custom merge driver does not block
+ # index.lock on Windows due to an inherited file handle.
+ # To ensure that the backgrounded process ran sufficiently
+ # long (and has been started in the first place), we do not
+ # ignore the result of the kill command.
+ # By packaging the command in test_when_finished, we get both
+ # the correctness check and the clean-up.
+ test_when_finished "kill \$(cat sleep.pid)" &&
+ git merge main
+'
+
+test_expect_success 'binary files with union attribute' '
+ git checkout -b bin-main &&
+ printf "base\0" >bin.txt &&
+ echo "bin.txt merge=union" >.gitattributes &&
+ git add bin.txt .gitattributes &&
+ git commit -m base &&
+
+ printf "one\0" >bin.txt &&
+ git commit -am one &&
+
+ git checkout -b bin-side HEAD^ &&
+ printf "two\0" >bin.txt &&
+ git commit -am two &&
+
+ if test "$GIT_TEST_MERGE_ALGORITHM" = ort
+ then
+ test_must_fail git merge bin-main >output
+ else
+ test_must_fail git merge bin-main 2>output
+ fi &&
+ grep -i "warning.*cannot merge.*HEAD vs. bin-main" output
+'
+
+test_done