@vendure/ngx-translate-extract/compilers/po.compiler.js

Extract strings from projects using ngx-translate

import { po } from 'gettext-parser';
import { TranslationCollection } from '../utils/translation.collection.js';
export class PoCompiler {
    extension = 'po';
    domain = '';
    includeSources = true;
    constructor(options) {
        this.includeSources = options?.poSourceLocation ?? true;
    }
    compile(collection) {
        const data = {
            charset: 'utf-8',
            headers: {
                'mime-version': '1.0',
                'content-type': 'text/plain; charset=utf-8',
                'content-transfer-encoding': '8bit'
            },
            translations: {
                [this.domain]: Object.keys(collection.values)
                    .reduce((translations, key) => {
                    const entry = collection.get(key);
                    const comments = this.includeSources ? { reference: entry.sourceFiles?.join('\n') } : undefined;
                    return {
                        ...translations,
                        [key]: {
                            msgid: key,
                            msgstr: entry.value,
                            comments: comments
                        }
                    };
                }, {})
            }
        };
        return po.compile(data, {}).toString('utf8');
    }
    parse(contents) {
        const parsedPo = po.parse(contents, { defaultCharset: 'utf8' });
        const poTranslations = parsedPo.translations?.[this.domain];
        if (!poTranslations) {
            return new TranslationCollection();
        }
        const translationEntries = Object.entries(poTranslations);
        const convertedTranslations = {};
        for (const [msgid, message] of translationEntries) {
            if (msgid === this.domain) {
                continue;
            }
            convertedTranslations[msgid] = {
                value: message.msgstr.at(-1),
                sourceFiles: message.comments?.reference?.split('\n') || []
            };
        }
        return new TranslationCollection(convertedTranslations);
    }
}