refs #18286 [master] include print.scss in docker grunt task for scss to css compilation

* ignore print.css and compiled.css globally in finc gitignore and delete obsolete one in finc css folder

.gitignore

@@ -23,3 +23,5 @@ import/solrmarc.log*
 /docker-compose.override.yml
 /docker-env.override.yml
 /.env
+**/compiled.css
+**/print.css
\ No newline at end of file

Gruntfile.js

@@ -3,6 +3,10 @@ module.exports = function(grunt) {
 
   var fs = require('fs');
 
+  /**
+   * @param  {string} file
+   * @return {Array}  retval - path to file as Array
+   */
   function getLoadPaths(file) {
     var config;
     var parts = file.split('/');
@@ -201,9 +205,13 @@ module.exports = function(grunt) {
     var sassConfig = {},
       path = require('path'),
       themeList = fs.readdirSync(path.resolve('themes')).filter(function (theme) {
-        return fs.existsSync(path.resolve('themes/' + theme + '/scss/compiled.scss'));
+        return fs.existsSync(path.resolve('themes/' + theme + '/scss/compiled.scss'))
+            || fs.existsSync(path.resolve('themes/' + theme + '/scss/print.scss'));
       });
 
+    /**
+     * Define mapping of input (scss) to output files (css) for following sass task
+     */
     for (var i in themeList) {
       var config = {
         options: {
@@ -212,7 +220,7 @@ module.exports = function(grunt) {
         files: [{
           expand: true,
           cwd: path.join('themes', themeList[i], 'scss'),
-          src: ['compiled.scss'],
+          src: ['compiled.scss', 'print.scss'],
           dest: path.join('themes', themeList[i], 'css'),
           ext: '.css'
         }]
@@ -220,7 +228,14 @@ module.exports = function(grunt) {
       for (var key in this.data.options) {
         config.options[key] = this.data.options[key] + '';
       }
-      config.options.includePaths = getLoadPaths('themes/' + themeList[i] + '/scss/compiled.scss');
+
+      /* get Array of unique input paths */
+      config.options.includePaths = Array.from(
+          new Set(
+              getLoadPaths('themes/' + themeList[i] + '/scss/compiled.scss')
+                  .concat(getLoadPaths('themes/' + themeList[i] + '/scss/print.scss'))
+          )
+      );
 
       sassConfig[themeList[i]] = config;
     }

themes/finc/css/.gitignore

-compiled.css
\ No newline at end of file