@sinclair/hammer
Version:
Build Tool for Browser and Node Applications
149 lines (142 loc) • 5.77 kB
JavaScript
"use strict";
/*--------------------------------------------------------------------------
MIT License
Copyright (c) Hammer 2022 Haydn Paterson (sinclair) <haydn.developer@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
---------------------------------------------------------------------------*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.Build = void 0;
const esbuild_1 = require("esbuild");
const path = require("path");
const fs = require("fs");
class Build {
options;
handles;
constructor(options) {
this.options = options;
this.handles = new Map();
}
async update(actions) {
for (const action of actions) {
switch (action.type) {
case 'insert':
await this.onInsert(action.value);
break;
case 'update':
await this.onUpdate(action.value);
break;
case 'delete':
await this.onDelete(action.value);
break;
}
}
}
dispose() {
for (const [key, handle] of this.handles) {
this.handles.delete(key);
if (handle.stop)
handle.stop();
}
}
async onInsert(asset) {
if (['typescript', 'javascript', 'css'].includes(asset.type)) {
return this.startEsbuild(asset);
}
return this.copyAsset(asset);
}
async onUpdate(asset) {
if (['typescript', 'javascript', 'css'].includes(asset.type)) {
return;
}
return this.copyAsset(asset);
}
onDelete(asset) {
if (['typescript', 'javascript', 'css'].includes(asset.type)) {
return this.stopEsBuild(asset);
}
}
copyAsset(asset) {
if (!fs.existsSync(asset.sourcePath))
return;
const directory = path.dirname(asset.targetPath);
if (!fs.existsSync(directory))
fs.mkdirSync(directory, { recursive: true });
if (asset.type === 'html') {
fs.writeFileSync(asset.targetPath, asset.content, 'utf-8');
}
else {
fs.copyFileSync(asset.sourcePath, asset.targetPath);
}
}
async startEsbuild(asset) {
try {
if (this.handles.has(asset.sourcePath))
return;
// --------------------------------------------------------------------------
// Note: For ESM modules, we need to use a seperate esbuild configuration
// that starts the process with code splitting enabled. As of writing,
// esbuild only supports code-splitting for ESM modules.
// --------------------------------------------------------------------------
const entry = (asset.type === 'typescript' || asset.type === 'javascript') && (this.options.esm || asset.esm)
? {
outdir: path.dirname(asset.targetPath),
format: 'esm',
splitting: true,
outExtension: this.options.node ? { '.js': '.mjs' } : { '.js': '.js' },
}
: {
outfile: asset.targetPath,
};
// --------------------------------------------------------------------------
// Note: These are loaders are for embedded assets imported via script. Hammer
// isn't really opinionated here, so additional assets can be added and built
// in later revisions of the tool.
// --------------------------------------------------------------------------
const loaders = {
loader: {
'.gif': 'binary',
'.jpg': 'binary',
'.png': 'binary',
'.ttf': 'binary',
},
};
const handle = await (0, esbuild_1.build)({
...entry,
...loaders,
entryPoints: [asset.sourcePath],
platform: this.options.platform,
minify: this.options.minify,
target: this.options.target,
sourcemap: this.options.sourcemap,
watch: this.options.watch,
external: this.options.external,
bundle: true,
});
this.handles.set(asset.sourcePath, handle);
}
catch { }
}
async stopEsBuild(asset) {
if (!this.handles.has(asset.sourcePath))
return;
const handle = this.handles.get(asset.sourcePath);
this.handles.delete(asset.sourcePath);
if (handle.stop)
handle.stop();
}
}
exports.Build = Build;