1 | import { resolve } from 'path';
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2 | import { Plugin, Compiler, BannerPlugin, DefinePlugin } from 'webpack';
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3 | import { wrapPilet, setEnvironment, getDefineVariables, getVariables } from './helpers';
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4 |
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5 | const pluginName = 'PiletWebpackPlugin';
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6 |
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7 | export interface PiletWebpackPluginOptions {
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8 | variables?: Record<string, string>;
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9 | }
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10 |
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11 | export class PiletWebpackPlugin implements Plugin {
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12 | constructor(private piletPackage: any, private options: PiletWebpackPluginOptions = {}) {}
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13 |
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14 | apply(compiler: Compiler) {
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15 | const piletPkg = this.piletPackage;
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16 | const shellPkg = require(`${piletPkg.piral.name}/package.json`);
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17 | const shortName = piletPkg.name.replace(/\W/gi, '');
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18 | const jsonpFunction = `pr_${shortName}`;
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19 | const environment = process.env.NODE_ENV || 'development';
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20 | const piralExternals = shellPkg.pilets?.externals ?? [];
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21 | const piletExternals = piletPkg.externals ?? [];
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22 | const peerDependencies = Object.keys(piletPkg.peerDependencies ?? {});
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23 | const externals = [...piralExternals, ...piletExternals, ...peerDependencies];
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24 | const variables = {
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25 | ...getVariables(piletPkg, environment),
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26 | ...this.options.variables,
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27 | };
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28 | const plugins = [
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29 | new BannerPlugin({
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30 | banner: `//@pilet v:1(${jsonpFunction})`,
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31 | entryOnly: true,
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32 | raw: true,
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33 | }),
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34 | new DefinePlugin(getDefineVariables(variables)),
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35 | ];
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36 |
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37 | setEnvironment(variables);
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38 |
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39 | plugins.forEach(plugin => plugin.apply(compiler));
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40 |
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41 | compiler.hooks.done.tap(pluginName, statsData => {
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42 | if (!statsData.hasErrors()) {
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43 | const { path, filename } = compiler.options.output;
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44 |
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45 | if (typeof filename === 'string') {
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46 | const file = resolve(path, filename);
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47 | wrapPilet(file, jsonpFunction);
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48 | } else {
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49 | const [main] = statsData.compilation.chunks.filter(m => m.entryModule).map(m => m.files[0]);
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50 | const file = resolve(compiler.outputPath, main);
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51 | wrapPilet(file, jsonpFunction);
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52 | }
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53 | }
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54 | });
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55 |
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56 | compiler.hooks.afterEnvironment.tap(pluginName, () => {
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57 | const current = compiler.options.externals;
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58 | compiler.options.output.jsonpFunction = jsonpFunction;
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59 | compiler.options.output.libraryTarget = 'umd';
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60 | compiler.options.output.library = piletPkg.name;
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61 | compiler.options.externals = Array.isArray(current)
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62 | ? [...current, ...externals]
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63 | : current
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64 | ? [current, ...externals]
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65 | : externals;
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66 | });
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67 | }
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68 | }
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