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DirectoryConverter.js
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DirectoryConverter.js
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"use strict";
const path = require("path");
const klawSync = require("klaw-sync");
const fs = require("fs-extra");
const ModuleSpecifierConverter = require("./ModuleSpecifierConverter.js");
module.exports = class DirectoryConverter {
constructor(options) {
this.options = options;
this.baseDir = options.baseDir;
}
convertDirectory(destDir, variables) {
const options = Object.assign({
rootDir: ".",
}, this.options);
const sourceDir = options.baseDir;
const moduleSpecifierConverter = new ModuleSpecifierConverter(options);
const inputFilePaths = klawSync(sourceDir, {
nodir: true
});
const isJavaScriptFile = filePath => /^\.m?jsx?$/.test(path.extname(filePath));
for (let {path: filePath} of inputFilePaths) {
const relativeFilePath = path.relative(sourceDir, filePath);
const destinationFilePath = path.join(destDir, relativeFilePath);
if (isJavaScriptFile(filePath)) {
let jsSource = fs.readFileSync(filePath, {encoding: "utf8"});
jsSource = moduleSpecifierConverter.convert(
jsSource, filePath, variables,
// modulePath will be a relative path between the two original files.
// Adjust it if that will break.
modulePath => {
const targetModule = path.resolve(path.dirname(filePath), modulePath);
const relativeFromSourceDir = path.relative(sourceDir, targetModule);
const isItOutsideSourceDir = relativeFromSourceDir.startsWith("../");
if (isItOutsideSourceDir) {
// It's pointing to a file outside the source directory (such as
// soemthing in /node_modules). The converted file will be moved,
// but target file will remain right where it is. Adjust path to
// keep it pointing to the right original file.
return path.relative(path.dirname(destinationFilePath), targetModule);
} else {
// It's pointing to another file in the same source directory,
// so the target file will be moved to staging along with this
// file. No changes are necessary.
return modulePath;
}
}
);
fs.ensureFileSync(destinationFilePath);
fs.writeFileSync(destinationFilePath, jsSource);
} else {
fs.ensureDirSync(path.dirname(destinationFilePath));
fs.copyFileSync(filePath, destinationFilePath);
}
}
}
}