peertube-plugin-livechat/conversejs/build-conversejs-patch-i18n.js

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2024-02-22 11:43:41 +00:00
#!/bin/env node
const fs = require('node:fs')
const path = require('node:path')
const YAML = require('yaml')
const locKeys = require('./loc.keys.js')
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/**
* This script will patch ConverseJS .po files, to add custom strings.
*/
const livechatDir = path.resolve(__dirname, '..', 'languages')
const converseDir = path.resolve(__dirname, '..', 'build', 'conversejs', 'src', 'i18n')
// Labels to import:
const labels = loadLabels(locKeys)
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function loadLabels (keys) {
const labels = {}
const sourceContent = fs.readFileSync(path.resolve(livechatDir, 'en.yml')).toString()
const yaml = YAML.parse(sourceContent)
for (const key of keys) {
labels[key] = yaml[key]
}
return labels
}
function patch (lang) {
const destLang = lang.replace('-', '_') // zh-Hans => zh_Hans
const destFile = lang === ''
? path.resolve(converseDir, destLang, 'converse.pot')
: path.resolve(converseDir, destLang, 'LC_MESSAGES', 'converse.po')
console.log(`Patching ${lang}/${destLang}...`)
if (!fs.existsSync(destFile)) {
console.log(`File ${destFile} does not exist, skipping.`)
return
}
let yaml
if (lang === '') { // pot file, dont put translation
yaml = {}
} else {
const sourceContent = fs.readFileSync(path.resolve(livechatDir, lang + '.yml')).toString()
yaml = YAML.parse(sourceContent) ?? {}
}
const destContent = fs.readFileSync(destFile).toString().split(/\n/)
// FIXME: for a yet-to-understand reason, the first patched string in marked as fuzzy when ConverseJS compiles
// po files. So we insert an unecessary translation first...
patchLabel(destContent, 'Livechat', 'Livechat')
for (const key in labels) {
const label = labels[key]
patchLabel(destContent, label, yaml[key] ?? '')
}
// We add an extra _livechat_language, so we can compute url to documentation
// (same thing as _language in build-languages.js)
patchLabel(destContent, '_livechat_language', lang)
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fs.writeFileSync(destFile, destContent.join('\n'))
}
function patchLabel (fileLines, label, translation) {
// FIXME: here we are not escaping any string value, considering there is only text in concerned labels for now.
// But we should...
const msgid = `msgid "${label}"`
const msgstr = `msgstr "${translation}"`
console.log(` Patching ${msgid} => ${msgstr} ...`)
for (let i = 0; i < fileLines.length; i++) {
const line = fileLines[i]
if (line !== msgid) { continue }
console.log(` Found ${msgid}`)
// FIXME: we consider there is only one msgstr... Should consider there could be multiple.
fileLines[i + 1] = msgstr
return
}
console.log(` Did not found ${msgid}, adding at the end`)
fileLines.push(
'# livechat-specific label',
msgid,
msgstr,
''
)
}
if (!fs.existsSync(livechatDir)) {
throw new Error('Missing livechat language dir')
}
if (!fs.existsSync(converseDir)) {
throw new Error('Missing ConverseJS language dir, are you really building it?')
}
patch('')
const files = fs.readdirSync(livechatDir).filter(f => /\.yml$/.test(f))
for (const file of files) {
const l = file.replace('.yml', '')
patch(l)
}