Merge branch 'js/merge'

* js/merge:
  merge-recursive: add/add really is modify/modify with an empty base
  Get rid of the dependency on RCS' merge program
  merge-file: support -p and -q; fix compile warnings
  Add builtin merge-file, a minimal replacement for RCS merge
  xdl_merge(): fix and simplify conflict handling
  xdl_merge(): fix thinko
  xdl_merge(): fix an off-by-one bug
  merge-recursive: use xdl_merge().
  xmerge: make return value from xdl_merge() more usable.
  xdiff: add xdl_merge()

1 files changed, 116 insertions, 0 deletions

diff --git a/t/t6023-merge-file.sh b/t/t6023-merge-file.sh
new file mode 100644
index 000000000..5d9b6f34b
--- /dev/null
+++ b/t/t6023-merge-file.sh
@@ -0,0 +1,116 @@
+#!/bin/sh
+
+test_description='RCS merge replacement: merge-file'
+. ./test-lib.sh
+
+cat > orig.txt << EOF
+Dominus regit me,
+et nihil mihi deerit.
+In loco pascuae ibi me collocavit,
+super aquam refectionis educavit me;
+animam meam convertit,
+deduxit me super semitas jusitiae,
+propter nomen suum.
+EOF
+
+cat > new1.txt << EOF
+Dominus regit me,
+et nihil mihi deerit.
+In loco pascuae ibi me collocavit,
+super aquam refectionis educavit me;
+animam meam convertit,
+deduxit me super semitas jusitiae,
+propter nomen suum.
+Nam et si ambulavero in medio umbrae mortis,
+non timebo mala, quoniam tu mecum es:
+virga tua et baculus tuus ipsa me consolata sunt.
+EOF
+
+cat > new2.txt << EOF
+Dominus regit me, et nihil mihi deerit.
+In loco pascuae ibi me collocavit,
+super aquam refectionis educavit me;
+animam meam convertit,
+deduxit me super semitas jusitiae,
+propter nomen suum.
+EOF
+
+cat > new3.txt << EOF
+DOMINUS regit me,
+et nihil mihi deerit.
+In loco pascuae ibi me collocavit,
+super aquam refectionis educavit me;
+animam meam convertit,
+deduxit me super semitas jusitiae,
+propter nomen suum.
+EOF
+
+cat > new4.txt << EOF
+Dominus regit me, et nihil mihi deerit.
+In loco pascuae ibi me collocavit,
+super aquam refectionis educavit me;
+animam meam convertit,
+deduxit me super semitas jusitiae,
+EOF
+echo -n "propter nomen suum." >> new4.txt
+
+cp new1.txt test.txt
+test_expect_success "merge without conflict" \
+	"git-merge-file test.txt orig.txt new2.txt"
+
+cp new1.txt test2.txt
+test_expect_success "merge without conflict (missing LF at EOF)" \
+	"git-merge-file test2.txt orig.txt new2.txt"
+
+test_expect_success "merge result added missing LF" \
+	"diff -u test.txt test2.txt"
+
+cp test.txt backup.txt
+test_expect_failure "merge with conflicts" \
+	"git-merge-file test.txt orig.txt new3.txt"
+
+cat > expect.txt << EOF
+<<<<<<< test.txt
+Dominus regit me, et nihil mihi deerit.
+=======
+DOMINUS regit me,
+et nihil mihi deerit.
+>>>>>>> new3.txt
+In loco pascuae ibi me collocavit,
+super aquam refectionis educavit me;
+animam meam convertit,
+deduxit me super semitas jusitiae,
+propter nomen suum.
+Nam et si ambulavero in medio umbrae mortis,
+non timebo mala, quoniam tu mecum es:
+virga tua et baculus tuus ipsa me consolata sunt.
+EOF
+
+test_expect_success "expected conflict markers" "diff -u test.txt expect.txt"
+
+cp backup.txt test.txt
+test_expect_failure "merge with conflicts, using -L" \
+	"git-merge-file -L 1 -L 2 test.txt orig.txt new3.txt"
+
+cat > expect.txt << EOF
+<<<<<<< 1
+Dominus regit me, et nihil mihi deerit.
+=======
+DOMINUS regit me,
+et nihil mihi deerit.
+>>>>>>> new3.txt
+In loco pascuae ibi me collocavit,
+super aquam refectionis educavit me;
+animam meam convertit,
+deduxit me super semitas jusitiae,
+propter nomen suum.
+Nam et si ambulavero in medio umbrae mortis,
+non timebo mala, quoniam tu mecum es:
+virga tua et baculus tuus ipsa me consolata sunt.
+EOF
+
+test_expect_success "expected conflict markers, with -L" \
+	"diff -u test.txt expect.txt"
+
+test_done
+