tests: Move FILEMODE prerequisite to lib-prereq-FILEMODE.sh

Change the five tests that were all checking "git config --bool
core.filemode" to use a new FILEMODE prerequisite in
lib-prereq-FILEMODE.sh.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/lib-prereq-FILEMODE.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+#
+# Copyright (c) 2010 Ævar Arnfjörð Bjarmason
+#
+
+if test "$(git config --bool core.filemode)" = false
+then
+	say 'filemode disabled on the filesystem'
+else
+	test_set_prereq FILEMODE
+fi

t/t3701-add-interactive.sh

@@ -2,6 +2,7 @@
 
 test_description='add -i basic tests'
 . ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-prereq-FILEMODE.sh
 
 if ! test_have_prereq PERL; then
 	skip_all='skipping git add -i tests, perl not available'
@@ -152,13 +153,6 @@ test_expect_success 'skip files similarly as commit -a' '
 '
 rm -f .gitignore
 
-if test "$(git config --bool core.filemode)" = false
-then
-	say '# skipping filemode tests (filesystem does not properly support modes)'
-else
-	test_set_prereq FILEMODE
-fi
-
 test_expect_success FILEMODE 'patch does not affect mode' '
 	git reset --hard &&
 	echo content >>file &&

t/t4102-apply-rename.sh

@@ -7,6 +7,7 @@ test_description='git apply handling copy/rename patch.
 
 '
 . ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-prereq-FILEMODE.sh
 
 # setup
 
@@ -31,13 +32,6 @@ test_expect_success setup \
 test_expect_success apply \
     'git apply --index --stat --summary --apply test-patch'
 
-if test "$(git config --bool core.filemode)" = false
-then
-	say 'filemode disabled on the filesystem'
-else
-	test_set_prereq FILEMODE
-fi
-
 test_expect_success FILEMODE validate \
 	    'test -f bar && ls -l bar | grep "^-..x......"'
 

t/t4129-apply-samemode.sh

@@ -3,13 +3,7 @@
 test_description='applying patch with mode bits'
 
 . ./test-lib.sh
-
+. "$TEST_DIRECTORY"/lib-prereq-FILEMODE.sh
-if test "$(git config --bool core.filemode)" = false
-then
-	say 'filemode disabled on the filesystem'
-else
-	test_set_prereq FILEMODE
-fi
 
 test_expect_success setup '
 	echo original >file &&

t/t6031-merge-recursive.sh

@@ -2,11 +2,7 @@
 
 test_description='merge-recursive: handle file mode'
 . ./test-lib.sh
-
+. "$TEST_DIRECTORY"/lib-prereq-FILEMODE.sh
-if ! test "$(git config --bool core.filemode)" = false
-then
-	test_set_prereq FILEMODE
-fi
 
 test_expect_success 'mode change in one branch: keep changed version' '
 	: >file1 &&

t/t9200-git-cvsexportcommit.sh

@@ -5,6 +5,7 @@
 test_description='Test export of commits to CVS'
 
 . ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-prereq-FILEMODE.sh
 
 if ! test_have_prereq PERL; then
 	skip_all='skipping git cvsexportcommit tests, perl not available'
@@ -229,11 +230,6 @@ test_expect_success \
       test_must_fail git cvsexportcommit -c $id
       )'
 
-if ! test "$(git config --bool core.filemode)" = false
-then
-	test_set_prereq FILEMODE
-fi
-
 test_expect_success FILEMODE \
      'Retain execute bit' \
      'mkdir G &&