angular-cn/tools/broccoli/broccoli-dest-copy.ts

64 lines
1.7 KiB
TypeScript

/// <reference path="./broccoli.d.ts" />
/// <reference path="../typings/node/node.d.ts" />
/// <reference path="../typings/fs-extra/fs-extra.d.ts" />
import fs = require('fs');
import fse = require('fs-extra');
import path = require('path');
import TreeDiffer = require('./tree-differ');
/**
* Intercepts each file as it is copied to the destination tempdir,
* and tees a copy to the given path outside the tmp dir.
*/
export = function destCopy(inputTree, outputRoot) { return new DestCopy(inputTree, outputRoot); }
class DestCopy implements BroccoliTree {
treeDirtyChecker: TreeDiffer;
initialized = false;
// props monkey-patched by broccoli builder:
inputPath = null;
cachePath = null;
outputPath = null;
constructor(public inputTree: BroccoliTree, public outputRoot: string) {}
rebuild() {
let firstRun = !this.initialized;
this.init();
let diffResult = this.treeDirtyChecker.diffTree();
diffResult.log(!firstRun);
diffResult.changedPaths.forEach((changedFilePath) => {
var destFilePath = path.join(this.outputRoot, changedFilePath);
var destDirPath = path.dirname(destFilePath);
fse.mkdirsSync(destDirPath);
fse.copySync(path.join(this.inputPath, changedFilePath), destFilePath);
});
diffResult.removedPaths.forEach((removedFilePath) => {
var destFilePath = path.join(this.outputRoot, removedFilePath);
// TODO: what about obsolete directories? we are not cleaning those up yet
fs.unlinkSync(destFilePath);
});
}
private init() {
if (!this.initialized) {
this.initialized = true;
this.treeDirtyChecker = new TreeDiffer(this.inputPath);
}
}
cleanup() {}
}