Merge branch 'sp/ignorecase'

* sp/ignorecase:
  t0050: Fix merge test on case sensitive file systems
  t0050: Add test for case insensitive add
  t0050: Set core.ignorecase case to activate case insensitivity
  t0050: Test autodetect core.ignorecase
  git-init: autodetect core.ignorecase

builtin-init-db.c

@@ -255,8 +255,8 @@ static int create_default_files(const char *git_dir, const char *template_path)
 			git_config_set("core.worktree", work_tree);
 	}
 
-	/* Check if symlink is supported in the work tree */
 	if (!reinit) {
+		/* Check if symlink is supported in the work tree */
 		path[len] = 0;
 		strcpy(path + len, "tXXXXXX");
 		if (!close(xmkstemp(path)) &&
@@ -267,6 +267,12 @@ static int create_default_files(const char *git_dir, const char *template_path)
 			unlink(path); /* good */
 		else
 			git_config_set("core.symlinks", "false");
+
+		/* Check if the filesystem is case-insensitive */
+		path[len] = 0;
+		strcpy(path + len, "CoNfIg");
+		if (!access(path, F_OK))
+			git_config_set("core.ignorecase", "true");
 	}
 
 	return reinit;

t/t0050-filesystem.sh

@@ -7,6 +7,7 @@ test_description='Various filesystem issues'
 auml=`printf '\xc3\xa4'`
 aumlcdiar=`printf '\x61\xcc\x88'`
 
+case_insensitive=
 test_expect_success 'see if we expect ' '
 
 	test_case=test_expect_success
@@ -17,6 +18,7 @@ test_expect_success 'see if we expect ' '
 	if test "$(cat junk/CamelCase)" != good
 	then
 		test_case=test_expect_failure
+		case_insensitive=t
 		say "will test on a case insensitive filesystem"
 	fi &&
 	rm -fr junk &&
@@ -32,8 +34,23 @@ test_expect_success 'see if we expect ' '
 	rm -fr junk
 '
 
+if test "$case_insensitive"
+then
+test_expect_success "detection of case insensitive filesystem during repo init" '
+
+	test $(git config --bool core.ignorecase) = true
+'
+else
+test_expect_success "detection of case insensitive filesystem during repo init" '
+
+	! git config --bool core.ignorecase >/dev/null ||
+	test $(git config --bool core.ignorecase) = false
+'
+fi
+
 test_expect_success "setup case tests" '
 
+	git config core.ignorecase true &&
 	touch camelcase &&
 	git add camelcase &&
 	git commit -m "initial" &&
@@ -55,11 +72,23 @@ $test_case 'rename (case change)' '
 
 $test_case 'merge (case change)' '
 
+	rm -f CamelCase &&
+	rm -f camelcase &&
 	git reset --hard initial &&
 	git merge topic
 
 '
 
+$test_case 'add (with different case)' '
+
+	git reset --hard initial &&
+	rm camelcase &&
+	echo 1 >CamelCase &&
+	git add CamelCase &&
+	test $(git-ls-files | grep -i camelcase | wc -l) = 1
+
+'
+
 test_expect_success "setup unicode normalization tests" '
 
   test_create_repo unicode &&