Add a separator after the license header if the template has no bottom

testdata/expected/Gemfile

@@ -11,5 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 puts "Hello world!"

testdata/expected/file.bzl

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 # Say hello
 def hello():

testdata/expected/file.cc

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 #include <iostream>
 using namespace std;

testdata/expected/file.cpp

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 #include <iostream>
 using namespace std;

testdata/expected/file.cs

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 public class Hello
 {

testdata/expected/file.dart

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 void main() {
 	print('Hello World!');

testdata/expected/file.el

@@ -11,5 +11,6 @@
 ;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ;; See the License for the specific language governing permissions and
 ;; limitations under the License.
+;; =============================================================================
 
 (message "Hello world!")

testdata/expected/file.erl

@@ -11,6 +11,7 @@
 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 % See the License for the specific language governing permissions and
 % limitations under the License.
+% ==============================================================================
 
 -module(hello).
 -export([hello_world/0]).

testdata/expected/file.go

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 package main
 

testdata/expected/file.gradle

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 application {
   mainClass = 'com.google.helloworld'

testdata/expected/file.graphql

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 query HeroNameAndFriends {
   hero {

testdata/expected/file.groovy

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 def dummy_function() {
     println "Hello world"

testdata/expected/file.hcl

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 group "default" {
   targets = ["build"]

testdata/expected/file.hh

@@ -11,5 +11,6 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 #define SOMETHING

testdata/expected/file.hpp

@@ -11,5 +11,6 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 #define SOMETHING

testdata/expected/file.hs

@@ -11,6 +11,7 @@
 -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 -- See the License for the specific language governing permissions and
 -- limitations under the License.
+-- =============================================================================
 
 module Main where
 

testdata/expected/file.lisp

@@ -11,6 +11,7 @@
 ;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ;; See the License for the specific language governing permissions and
 ;; limitations under the License.
+;; =============================================================================
 
 ; hello world lisp program.
 (print "Hello World")

testdata/expected/file.m

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 #import <Foundation/Foundation.h>
 

testdata/expected/file.mm

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 #import <Foundation/Foundation.h>
 

testdata/expected/file.nix

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 with import <nixpkgs> {};
 mkShell {

testdata/expected/file.php

@@ -12,6 +12,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 namespace App;
 phpinfo();

testdata/expected/file.proto

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 syntax = "proto3";
 

testdata/expected/file.pxd

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 cdef void main():
     print("Hello World!")

testdata/expected/file.py

@@ -11,5 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 print "Hello World!"

testdata/expected/file.pyx

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 def main() -> None:
     print("Hello World!")

testdata/expected/file.rb

@@ -12,5 +12,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 puts "Hello world!"

testdata/expected/file.rs

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 fn main() {
     println!("Hello World!");

testdata/expected/file.sdl

@@ -11,6 +11,7 @@
 -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 -- See the License for the specific language governing permissions and
 -- limitations under the License.
+-- =============================================================================
 
 -- This is a fake table.
 CREATE TABLE Foo (

testdata/expected/file.swift

@@ -11,5 +11,6 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+// =============================================================================
 
 print("Hello, world!")

testdata/expected/file.tf

@@ -11,5 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 resource "null_resource" "dummy" {}

testdata/expected/file.toml

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 [package]
 name = "not-a-real-crate"

testdata/expected/file1.Dockerfile

@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 FROM scratch
 CMD ["echo", "hello world"]

testdata/expected/file1.sh

@@ -12,5 +12,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 echo hello

testdata/expected/file2.Dockerfile

@@ -12,6 +12,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 FROM scratch
 CMD ["echo", "hello world"]

testdata/expected/file2.sh

@@ -12,4 +12,5 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 

testdata/expected/file3.Dockerfile

@@ -12,6 +12,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# ==============================================================================
 
 FROM microsoft/nanoserver
 COPY testfile.txt c:\

tmpl.go

@@ -91,11 +91,36 @@ func executeTemplate(t *template.Template, d licenseData, top, mid, bot string)
 		fmt.Fprintln(&out, top)
 	}
 	s := bufio.NewScanner(&buf)
+	found_empty_line := false
 	for s.Scan() {
-		fmt.Fprintln(&out, strings.TrimRightFunc(mid+s.Text(), unicode.IsSpace))
+		line := strings.TrimRightFunc(s.Text(), unicode.IsSpace)
+		found_empty_line = found_empty_line || line == ""
+		fmt.Fprintln(&out, strings.TrimRightFunc(mid+line, unicode.IsSpace))
 	}
 	if bot != "" {
 		fmt.Fprintln(&out, bot)
+	} else if found_empty_line && len(mid) < 80 {
+		// Found empty lines in the license header, so there are multiple paragraphs in the license.
+		//
+		// If the license does not specify a bottom suffix, add a visual separation line to the
+		// license header from the following code. For example:
+		//
+		// top, mid, bot = "", "# ", ""
+		//
+		//     # License Header
+		//     # ============================
+		//
+		//     Code starts here...
+		//
+		// top, mid, bot = "/**", " * ", " */"
+		//
+		//     /**
+		//      * License Header
+		//      */
+		//
+		//     Code starts here...
+		//
+		fmt.Fprintln(&out, mid+strings.Repeat("=", 80-len(mid)))
 	}
 	fmt.Fprintln(&out)
 	return out.Bytes(), nil

tmpl_test.go

@@ -204,6 +204,7 @@ distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
+================================================================================
 
 `,
 		},
@@ -242,6 +243,7 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
+================================================================================
 
 `,
 		},