46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
TypeScript
/// <reference path="broccoli.d.ts" />
|
|
/// <reference path="../typings/node/node.d.ts" />
|
|
|
|
import fs = require('fs');
|
|
let symlinkOrCopy = require('symlink-or-copy');
|
|
|
|
|
|
/**
|
|
* Stabilizes the inputPath for the following plugins in the build tree.
|
|
*
|
|
* All broccoli plugins that inherit from `broccoli-writer` or `broccoli-filter` change their
|
|
* outputPath during each rebuild.
|
|
*
|
|
* This means that all following plugins in the build tree can't rely on their inputPath being
|
|
* immutable. This results in breakage of any plugin that is not expecting such behavior.
|
|
*
|
|
* For example all `DiffingBroccoliPlugin`s expect their inputPath to be stable.
|
|
*
|
|
* By inserting this plugin into the tree after any misbehaving plugin, we can stabilize the
|
|
* inputPath for the following plugin in the tree and correct the surprising behavior.
|
|
*/
|
|
class TreeStabilizer implements BroccoliTree {
|
|
inputPath: string;
|
|
outputPath: string;
|
|
|
|
|
|
constructor(public inputTree: BroccoliTree) {}
|
|
|
|
|
|
rebuild() {
|
|
fs.rmdirSync(this.outputPath);
|
|
|
|
// TODO: investigate if we can use rename the directory instead to improve performance on
|
|
// Windows
|
|
symlinkOrCopy.sync(this.inputPath, this.outputPath);
|
|
}
|
|
|
|
|
|
cleanup() {}
|
|
}
|
|
|
|
|
|
export default function stabilizeTree(inputTree): BroccoliTree {
|
|
return new TreeStabilizer(inputTree);
|
|
}
|