import Utils from 'rollup-plugin-app-utils'
Utils.i18nBundler({
target: localesDir,
baseLanguage: 'en',
skipBackFilling: false, // Please read Back Filling section below.
// Optional
transformer: (lang, data) => {
return data
}
})then in your JS import translations using below line
import translations from 'i18n.translations'
console.log(translations.en)i18n bundler reads json files from the specified directory and prepares a JSON structure. It uses base language directory as reference directory and
- Adds missing files, adds missing keys to all the other languages
- Removes keys from other languages JSON files that are removed from base language
- Creates files or remove unnecessary files. For exeample, home.json exists in
enfolder but not intefolder, then when you build, the i18nBundler will create file and copy the content from base language folder for you. In a same way, iftefolder containstest.jsonbutenfolder does not, thentest.jsonwill be removed from thetefolder
For example, if you have locales folder with this structure and content,
{
"en": {
"onlyEng.json": {
"wasInENonly": "yes"
},
"test.json": {
"willbeAdded": "willbeAdded",
"willnotOverride": "en text"
}
},
"te": {
"test.json": {
"willbeRemoved": "willbeRemoved",
"willnotOverride": "te text"
}
}
}it will be transformed to below:
{
"en": {
"onlyEng": {
"wasInENonly": "yes"
},
"test": {
"willbeAdded": "willbeAdded",
"willnotOverride": "en text"
}
},
"te": {
"onlyEng": {
"wasInENonly": "yes"
},
"test": {
"willbeAdded": "willbeAdded",
"willnotOverride": "te text"
}
}
}Please check test-data folder for example structure. Then run npm test and take a look at test-data-copy/output.js and test-data-copy/locales for a better understanding.
Helps to copy static content from during build, this does the job in a synchronous way.
Utils.copyAssets({
// Source -> Target.
'./test-data': './test-data-copy',
'./test': './test-new'
}, filterFun) // uses fs-extra `copySync`. You can also pass filter function
Helps to prepare directories during build, this does the job in a synchronous way. For example, during thee build if you want to use dynamically named folder name, this method can be used to create directories. We use this to create a folder with unique name and then put static content in it.
Utils.prepareDirectories(somedir1)
// or
Utils.prepareDirectories([somedir2, somedir3])
Helps to cleanup directories during build, this does the job in a synchronous way. We use this to clean the dist folder before rollup write the output to dist folder.
Utils.emptyDirectories(somedir1)
// or
Utils.emptyDirectories([somedir2, somedir3])
Helps to generate a html page from template and write to a target html file. This does the job in a synchronous way.
For example you have below html:
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>{title}</title>
</head>
<body>
{keyOne}
</body>
</html>Then in your rollup config if you do below:
Utils.htmlInjector({
template: './test-data-copy/test.template.html',
target: './test-data-copy/tdir/index.html',
injects: {
title: '___title___',
keyOne: '___keyOne____'
}
}),The output looks like this:
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>___title___</title>
</head>
<body>
___keyOne____
</body>
</html>Please check guidelines for more details.