generate .gitignore from mustache template from now.

Author: Vitexus

.gitignore

@@ -1,4 +1,5 @@
 # ref: https://github.com/github/gitignore/blob/master/Composer.gitignore
+# ref: https://mustache.github.io/mustache.5.html
 
 composer.phar
 /vendor/
@@ -13,3 +14,4 @@ composer.phar
 
 # PHPUnit cache
 .phpunit.result.cache
+composer.lock

.openapi-generator/config.yaml

@@ -21,3 +21,7 @@ additionalProperties:
   composer.mustache:
       folder: .
       destinationFilename: composer.json
+  gitignore.mustache:
+      folder: .
+      destinationFilename: .gitignore
+

.openapi-generator/templates/gitignore.mustache

@@ -0,0 +1,17 @@
+# ref: https://github.com/github/gitignore/blob/master/Composer.gitignore
+# ref: https://mustache.github.io/mustache.5.html
+
+composer.phar
+/vendor/
+
+# Commit your application's lock file https://getcomposer.org/doc/01-basic-usage.md#commit-your-composer-lock-file-to-version-control
+# You may choose to ignore a library lock file http://getcomposer.org/doc/02-libraries.md#lock-file
+# composer.lock
+
+# php-cs-fixer cache
+.php_cs.cache
+.php-cs-fixer.cache
+
+# PHPUnit cache
+.phpunit.result.cache
+composer.lock