2017-10-18 14:39:04 +02:00
|
|
|
/*
|
|
|
|
Copyright 2017 New Vector Ltd
|
|
|
|
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
you may not use this file except in compliance with the License.
|
|
|
|
You may obtain a copy of the License at
|
|
|
|
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
See the License for the specific language governing permissions and
|
|
|
|
limitations under the License.
|
|
|
|
*/
|
|
|
|
|
2017-10-17 20:19:01 +02:00
|
|
|
/**
|
|
|
|
* Regenerates the translations base file by walking the source tree and
|
|
|
|
* parsing each file with flow-parser. Emits a JSON file with the
|
|
|
|
* translatable strings mapped to themselves in the order they appeared
|
|
|
|
* in the files and grouped by the file they appeared in.
|
|
|
|
*
|
|
|
|
* Usage: node scripts/gen-i18n.js
|
|
|
|
*/
|
|
|
|
const fs = require('fs');
|
|
|
|
const path = require('path');
|
|
|
|
|
|
|
|
const walk = require('walk');
|
|
|
|
|
|
|
|
const flowParser = require('flow-parser');
|
|
|
|
const estreeWalker = require('estree-walker');
|
|
|
|
|
|
|
|
const TRANSLATIONS_FUNCS = ['_t', '_td', '_tJsx'];
|
|
|
|
|
2017-10-18 15:30:55 +02:00
|
|
|
const INPUT_TRANSLATIONS_FILE = 'src/i18n/strings/en_EN.json';
|
2017-10-17 20:19:01 +02:00
|
|
|
|
|
|
|
const FLOW_PARSER_OPTS = {
|
|
|
|
esproposal_class_instance_fields: true,
|
|
|
|
esproposal_class_static_fields: true,
|
|
|
|
esproposal_decorators: true,
|
|
|
|
esproposal_export_star_as: true,
|
|
|
|
types: true,
|
|
|
|
};
|
|
|
|
|
|
|
|
function getObjectValue(obj, key) {
|
|
|
|
for (const prop of obj.properties) {
|
|
|
|
if (prop.key.type == 'Identifier' && prop.key.name == key) {
|
|
|
|
return prop.value;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
|
|
|
|
function getTKey(arg) {
|
|
|
|
if (arg.type == 'Literal') {
|
|
|
|
return arg.value;
|
|
|
|
} else if (arg.type == 'BinaryExpression' && arg.operator == '+') {
|
|
|
|
return getTKey(arg.left) + getTKey(arg.right);
|
|
|
|
} else if (arg.type == 'TemplateLiteral') {
|
|
|
|
return arg.quasis.map((q) => {
|
|
|
|
return q.value.raw;
|
|
|
|
}).join('');
|
|
|
|
}
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
|
|
|
|
function getTranslations(file) {
|
|
|
|
const tree = flowParser.parse(fs.readFileSync(file, { encoding: 'utf8' }), FLOW_PARSER_OPTS)
|
|
|
|
|
|
|
|
const trs = new Set();
|
|
|
|
|
|
|
|
estreeWalker.walk(tree, {
|
|
|
|
enter: function(node, parent) {
|
|
|
|
//console.log(node);
|
|
|
|
if (
|
|
|
|
node.type == 'CallExpression' &&
|
|
|
|
TRANSLATIONS_FUNCS.includes(node.callee.name)
|
|
|
|
) {
|
|
|
|
const tKey = getTKey(node.arguments[0]);
|
|
|
|
if (tKey === null) return;
|
|
|
|
|
|
|
|
let isPlural = false;
|
|
|
|
if (node.arguments.length > 1 && node.arguments[1].type == 'ObjectExpression') {
|
|
|
|
const countVal = getObjectValue(node.arguments[1], 'count');
|
|
|
|
if (countVal) {
|
|
|
|
isPlural = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isPlural) {
|
2017-10-18 15:30:55 +02:00
|
|
|
trs.add(tKey + "|other");
|
|
|
|
const plurals = enPlurals[tKey];
|
|
|
|
if (plurals) {
|
|
|
|
for (const pluralType of Object.keys(plurals)) {
|
|
|
|
trs.add(tKey + "|" + pluralType);
|
|
|
|
}
|
2017-10-17 20:19:01 +02:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
trs.add(tKey);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
return trs;
|
|
|
|
}
|
|
|
|
|
2017-10-18 15:30:55 +02:00
|
|
|
// gather en_EN plural strings from the input translations file:
|
|
|
|
// the en_EN strings are all in the source with the exception of
|
|
|
|
// pluralised strings, which we need to pull in from elsewhere.
|
|
|
|
const inputTranslationsRaw = JSON.parse(fs.readFileSync(INPUT_TRANSLATIONS_FILE, { encoding: 'utf8' }));
|
|
|
|
const enPlurals = {};
|
|
|
|
|
|
|
|
for (const key of Object.keys(inputTranslationsRaw)) {
|
|
|
|
const parts = key.split("|");
|
|
|
|
if (parts.length > 1) {
|
|
|
|
const plurals = enPlurals[parts[0]] || {};
|
|
|
|
plurals[parts[1]] = inputTranslationsRaw[key];
|
|
|
|
enPlurals[parts[0]] = plurals;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-10-17 20:19:01 +02:00
|
|
|
const translatables = new Set();
|
|
|
|
|
|
|
|
walk.walkSync("src", {
|
|
|
|
listeners: {
|
|
|
|
file: function(root, fileStats, next) {
|
|
|
|
if (!fileStats.name.endsWith('.js')) return;
|
|
|
|
|
|
|
|
const fullPath = path.join(root, fileStats.name);
|
|
|
|
const trs = getTranslations(fullPath);
|
|
|
|
console.log(`${fullPath} (${trs.size} strings)`);
|
|
|
|
for (const tr of trs.values()) {
|
|
|
|
translatables.add(tr);
|
|
|
|
}
|
|
|
|
},
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
const trObj = {};
|
|
|
|
for (const tr of translatables) {
|
|
|
|
trObj[tr] = tr;
|
2017-10-18 15:30:55 +02:00
|
|
|
if (tr.includes("|")) {
|
|
|
|
trObj[tr] = inputTranslationsRaw[tr];
|
|
|
|
}
|
2017-10-17 20:19:01 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
fs.writeFileSync(
|
|
|
|
"src/i18n/strings/en_EN.json",
|
|
|
|
JSON.stringify(trObj, translatables.values(), 4) + "\n"
|
|
|
|
);
|
|
|
|
|