How to replace sass variable values using grunt-sass-replace? - node.js

Question

I want to replace few sass variable values inside a sass config file.
For example, I want to replace the value of variable "$file_global" = "new";
I want to use "grunt-sass-replace" package to do the work, i tried alot but its giving me various errors.
My Project Directory Structure:
grep/
/node_modules/
package.json
Gruntfile.js
src/
my-styles.scss
my-styles.scss Code:
$file_global: "old";
Gruntfile.js Code:
module.exports = function(grunt){
pkg: grunt.file.readJSON('package.json'),
grunt.initConfig({
'sass-replace': {
files: { // File Options
src: 'src/my-styles.scss',
dest: 'dest/my-styles.scss'
},
options: {
variables: [
{
name: 'file_global',
to: 'new'
}
]
}
}
});
grunt.loadNpmTasks('grunt-sass-replace');
grunt.registerTask('default', ['sass-replace']);
};
package.json Code:
{
"name": "grep",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "KJ",
"license": "ISC",
"devDependencies": {
"grunt": "^1.0.4",
"grunt-sass-replace": "^0.1.18",
"npm-check-updates": "^3.1.9"
}
}
I updated the "files" but its still giving me various errors.
Below are the options that i tried and the errors generated.
First Try
// Option First :
files: {
'dest/my-styles.scss': 'src/my-styles.scss'
},
ERROR :
C:\wamp64\www\GREP>grunt
>> Tasks directory "C:\wamp64\www\GREP\node_modules\grunt-sass-replace\node_modules\grunt-string-replace\tasks" not found.
Running "sass-replace:files" (sass-replace) task
Warning: no files passed. Use --force to continue..
Aborted due to warnings.
Second Try:
// Option Second :
files: [
{
src: 'src/my-styles.scss',
dest: 'dest/my-styles.scss'
}
],
ERROR :
C:\wamp64\www\GREP>grunt
>> Tasks directory "C:\wamp64\www\GREP\node_modules\grunt-sass-replace\node_modules\grunt-string-replace\tasks" not found.
Running "sass-replace:files" (sass-replace) task
Warning: pattern.indexOf is not a function Use --force to continue.
Aborted due to warnings.
Last Try:
// Option Third :
files: {
src: 'src/my-styles.scss',
dest: 'dest/my-styles.scss'
},
ERROR :
C:\wamp64\www\GREP>grunt
>> Tasks directory "C:\wamp64\www\GREP\node_modules\grunt-sass-replace\node_modules\grunt-string-replace\tasks" not found.
Running "sass-replace:files" (sass-replace) task
>> [1] scss files found in [1] passed files.
>> replacements resolved successfully.
running string-replace task.
Warning: Task "string-replace:sass" not found. Use --force to continue.
Aborted due to warnings.
Anyone know how to solve this error, or any other grunt package which can do this kind of work.

Answer 1

This package was last updated 3 years ago, also it uses grunt ~0.4.5. I can't help you with this, However checkout "grunt-sass-replace-values" from https://www.npmjs.com/package/grunt-sass-replace-values. This package is updated a year ago and patched.
npm install grunt-sass-replace-values --save-dev
Check out following issue on Github:
https://github.com/eliranmal/grunt-sass-replace/issues/1
Explanation :
Cause of errors :
You defined sass variable incorrectly. Variables should be defined as "$variable: value;" and not like "$variable = value;"
As of the Github issue with this package, you need to update the path to your "grunt-string-replace" dependency.
Solution :
Under your project root folder, Go to below directory:
node_modules/grunt-sass-replace/tasks
Once you're in the above directory, look for a file name "sass-replace.js"
Just open the file with any Text Editor, and Edit the path to dependency.
grunt.task.loadTasks(path.resolve(__dirname, '../node_modules/grunt-string-replace/tasks'));
In your case edit this like as below :
grunt.task.loadTasks(path.resolve(__dirname, '../../../node_modules/grunt-string-replace/tasks'));
I hope this solves your problem. If not use another package, or use older node and grunt(0.4.5) versions.