Support custom yaml output options

README.md

@@ -222,6 +222,14 @@ export default {
   // If you wish to customize options in internally used i18next instance, you can define an object with any
   // configuration property supported by i18next (https://www.i18next.com/overview/configuration-options).
   // { compatibilityJSON: 'v3' } can be used to generate v3 compatible plurals.
+
+  yamlOptions: null,
+  // If you wish to customize options for yaml output, you can define an object here.
+  // Configuration options are here (https://github.com/nodeca/js-yaml#dump-object---options-).
+  // Example:
+  // {
+  //   lineWidth: -1,
+  // }
 }
 ```
 

src/transform.js

@@ -41,6 +41,7 @@ export default class i18nTransform extends Transform {
       skipDefaultValues: false,
       customValueTemplate: null,
       failOnWarnings: false,
+      yamlOptions: null,
     }
 
     this.options = { ...this.defaults, ...options }
@@ -365,6 +366,7 @@ export default class i18nTransform extends Transform {
     if (path.endsWith('yml')) {
       text = yaml.dump(contents, {
         indent: this.options.indentation,
+        ...this.options.yamlOptions,
       })
     } else {
       text = JSON.stringify(contents, null, this.options.indentation) + '\n'

test/parser.test.js

@@ -1395,6 +1395,33 @@ describe('parser', () => {
       i18nextParser.end(fakeFile)
     })
 
+    it('supports custom output configuration for yml', (done) => {
+      let result
+      const i18nextParser = new i18nTransform({
+        output: 'locales/$LOCALE/$NAMESPACE.yml',
+        yamlOptions: {
+          forceQuotes: true,
+          quotingType: '"',
+        },
+      })
+      const fakeFile = new Vinyl({
+        contents: Buffer.from("t('first', 'test')"),
+        path: 'file.js',
+      })
+
+      i18nextParser.on('data', (file) => {
+        if (file.relative.endsWith(path.normalize('en/translation.yml'))) {
+          result = file.contents.toString('utf8')
+        }
+      })
+      i18nextParser.once('end', () => {
+        assert.equal(result.replace(/\r\n/g, '\n'), 'first: "test"\n')
+        done()
+      })
+
+      i18nextParser.end(fakeFile)
+    })
+
     it('writes non-breaking space output to yml', (done) => {
       let result
       const i18nextParser = new i18nTransform({