]>
Commit | Line | Data |
---|---|---|
7de41f10 AM |
1 | 'use strict' |
2 | ||
7f0547d4 | 3 | const debug_ = require('debug'); |
4 | ||
5 | const debug = debug_('purs-loader'); | |
6 | ||
7 | const debugVerbose = debug_('purs-loader:verbose'); | |
1c12889c | 8 | |
7de41f10 | 9 | const loaderUtils = require('loader-utils') |
1c12889c | 10 | |
7de41f10 | 11 | const Promise = require('bluebird') |
1c12889c | 12 | |
7de41f10 | 13 | const path = require('path') |
1c12889c | 14 | |
15 | const PsModuleMap = require('./purs-module-map'); | |
16 | ||
17 | const compile = require('./compile'); | |
18 | ||
19 | const bundle = require('./bundle'); | |
20 | ||
21 | const ide = require('./ide'); | |
22 | ||
8e21ab0a | 23 | const toJavaScript = require('./to-javascript'); |
1c12889c | 24 | |
466c0068 | 25 | const sourceMaps = require('./source-maps'); |
26 | ||
86e2b3d4 | 27 | const spawn = require('cross-spawn').sync |
1c12889c | 28 | |
86e2b3d4 | 29 | const eol = require('os').EOL |
7de41f10 | 30 | |
0f9fe1ed | 31 | var CACHE_VAR = { |
32 | rebuild: false, | |
33 | deferred: [], | |
34 | bundleModules: [], | |
35 | ideServer: null, | |
36 | psModuleMap: null, | |
37 | warnings: [], | |
38 | errors: [], | |
39 | compilationStarted: false, | |
40 | compilationFinished: false, | |
41 | installed: false, | |
42 | srcOption: [] | |
43 | }; | |
44 | ||
bef7f4e2 DH |
45 | // include src files provided by psc-package or Spago |
46 | function requestDependencySources(packagerCommand, srcPath, loaderOptions) { | |
47 | const packagerArgs = ['sources']; | |
48 | ||
49 | const loaderSrc = loaderOptions.src || [ | |
50 | srcPath | |
51 | ]; | |
52 | ||
53 | debug('%s %o', packagerCommand, packagerArgs); | |
54 | ||
55 | const cmd = spawn(packagerCommand, packagerArgs); | |
56 | ||
57 | if (cmd.error) { | |
58 | throw new Error(cmd.error); | |
59 | } | |
60 | else if (cmd.status !== 0) { | |
61 | const error = cmd.stdout.toString(); | |
62 | ||
63 | throw new Error(error); | |
64 | } | |
65 | else { | |
66 | const result = cmd.stdout.toString().split(eol).filter(v => v != '').concat(loaderSrc); | |
67 | ||
68 | debug('%s result: %o', packagerCommand, result); | |
69 | ||
70 | CACHE_VAR.srcOption = result; | |
71 | ||
72 | return result; | |
73 | } | |
74 | } | |
75 | ||
7de41f10 | 76 | module.exports = function purescriptLoader(source, map) { |
7f0547d4 | 77 | this.cacheable && this.cacheable(); |
78 | ||
0f9fe1ed | 79 | const webpackContext = (this.options && this.options.context) || this.rootContext; |
e1719658 | 80 | |
81 | const callback = this.async(); | |
82 | ||
7f0547d4 | 83 | const loaderOptions = loaderUtils.getOptions(this) || {}; |
7de41f10 | 84 | |
bef7f4e2 | 85 | const srcOption = ((pscPackage, spago) => { |
e1719658 | 86 | const srcPath = path.join('src', '**', '*.purs'); |
87 | ||
88 | const bowerPath = path.join('bower_components', 'purescript-*', 'src', '**', '*.purs'); | |
89 | ||
0f9fe1ed | 90 | if (CACHE_VAR.srcOption.length > 0) { |
91 | return CACHE_VAR.srcOption; | |
e1719658 | 92 | } |
93 | else if (pscPackage) { | |
bef7f4e2 | 94 | return requestDependencySources('psc-package', srcPath, loaderOptions) |
86e2b3d4 | 95 | } |
bef7f4e2 DH |
96 | else if (spago) { |
97 | return requestDependencySources('spago', srcPath, loaderOptions) | |
98 | } | |
86e2b3d4 | 99 | else { |
e1719658 | 100 | const result = loaderOptions.src || [ |
101 | bowerPath, | |
102 | srcPath | |
7f0547d4 | 103 | ]; |
e1719658 | 104 | |
0f9fe1ed | 105 | CACHE_VAR.srcOption = result; |
e1719658 | 106 | |
107 | return result; | |
86e2b3d4 | 108 | } |
bef7f4e2 | 109 | })(loaderOptions.pscPackage, loaderOptions.spago); |
86e2b3d4 | 110 | |
7f0547d4 | 111 | const options = Object.assign({ |
0f9fe1ed | 112 | context: webpackContext, |
1c12889c | 113 | psc: null, |
7de41f10 | 114 | pscArgs: {}, |
1c12889c | 115 | pscBundle: null, |
7de41f10 | 116 | pscBundleArgs: {}, |
71a96808 | 117 | pscIdeClient: null, |
118 | pscIdeClientArgs: {}, | |
119 | pscIdeServer: null, | |
120 | pscIdeServerArgs: {}, | |
cd124999 | 121 | pscIdeRebuildArgs: {}, |
5163b5a2 | 122 | pscIde: false, |
7f0547d4 | 123 | pscIdeColors: loaderOptions.psc === 'psa', |
86e2b3d4 | 124 | pscPackage: false, |
bef7f4e2 | 125 | spago: false, |
7de41f10 AM |
126 | bundleOutput: 'output/bundle.js', |
127 | bundleNamespace: 'PS', | |
128 | bundle: false, | |
129 | warnings: true, | |
df8798fa | 130 | watch: false, |
7de41f10 | 131 | output: 'output', |
7f0547d4 | 132 | src: [] |
133 | }, loaderOptions, { | |
134 | src: srcOption | |
135 | }); | |
7de41f10 | 136 | |
0f9fe1ed | 137 | if (!CACHE_VAR.installed) { |
7f0547d4 | 138 | debugVerbose('installing purs-loader with options: %O', options); |
86e2b3d4 | 139 | |
0f9fe1ed | 140 | CACHE_VAR.installed = true; |
7de41f10 | 141 | |
d841685e | 142 | const invalidCb = () => { |
0f9fe1ed | 143 | debugVerbose('invalidating loader CACHE_VAR'); |
531c751f | 144 | |
0f9fe1ed | 145 | CACHE_VAR = { |
5163b5a2 | 146 | rebuild: options.pscIde, |
7de41f10 | 147 | deferred: [], |
531c751f | 148 | bundleModules: [], |
0f9fe1ed | 149 | ideServer: CACHE_VAR.ideServer, |
150 | psModuleMap: CACHE_VAR.psModuleMap, | |
b683b0b1 | 151 | warnings: [], |
e1719658 | 152 | errors: [], |
78e2b0d9 | 153 | compilationStarted: false, |
154 | compilationFinished: false, | |
0f9fe1ed | 155 | installed: CACHE_VAR.installed, |
6ccb09a5 | 156 | srcOption: [] |
7f0547d4 | 157 | }; |
d841685e | 158 | } |
b683b0b1 | 159 | |
d841685e RS |
160 | // invalidate loader CACHE_VAR when bundle is marked as invalid (in watch mode) |
161 | if(this._compiler.hooks){ | |
162 | this._compiler.hooks.invalid.tap('purs-loader', invalidCb); | |
163 | } else { | |
164 | this._compiler.plugin('invalid', invalidCb); | |
165 | } | |
166 | ||
167 | const afterCompileCb = (compilation, callback) => { | |
0f9fe1ed | 168 | CACHE_VAR.warnings.forEach(warning => { |
b683b0b1 | 169 | compilation.warnings.push(warning); |
170 | }); | |
171 | ||
0f9fe1ed | 172 | CACHE_VAR.errors.forEach(error => { |
b683b0b1 | 173 | compilation.errors.push(error); |
174 | }); | |
175 | ||
176 | callback() | |
d841685e RS |
177 | } |
178 | ||
179 | // add psc warnings to webpack compilation warnings | |
180 | if(this._compiler.hooks) { | |
181 | this._compiler.hooks.afterCompile.tapAsync('purs-loader', afterCompileCb); | |
182 | } else { | |
183 | this._compiler.plugin('after-compile', afterCompileCb); | |
184 | } | |
7de41f10 AM |
185 | } |
186 | ||
7f0547d4 | 187 | const psModuleName = PsModuleMap.matchModule(source); |
188 | ||
7de41f10 AM |
189 | const psModule = { |
190 | name: psModuleName, | |
466c0068 | 191 | source: source, |
192 | load: ({js, map}) => callback(null, js, map), | |
7de41f10 AM |
193 | reject: error => callback(error), |
194 | srcPath: this.resourcePath, | |
466c0068 | 195 | remainingRequest: loaderUtils.getRemainingRequest(this), |
7de41f10 AM |
196 | srcDir: path.dirname(this.resourcePath), |
197 | jsPath: path.resolve(path.join(options.output, psModuleName, 'index.js')), | |
198 | options: options, | |
0f9fe1ed | 199 | cache: CACHE_VAR, |
b683b0b1 | 200 | emitWarning: warning => { |
201 | if (options.warnings && warning.length) { | |
0f9fe1ed | 202 | CACHE_VAR.warnings.push(warning); |
b683b0b1 | 203 | } |
204 | }, | |
205 | emitError: error => { | |
206 | if (error.length) { | |
0f9fe1ed | 207 | CACHE_VAR.errors.push(error); |
b683b0b1 | 208 | } |
209 | } | |
7de41f10 AM |
210 | } |
211 | ||
7f0547d4 | 212 | debug('loading %s', psModule.name); |
67888496 | 213 | |
7de41f10 | 214 | if (options.bundle) { |
0f9fe1ed | 215 | CACHE_VAR.bundleModules.push(psModule.name); |
7de41f10 AM |
216 | } |
217 | ||
0f9fe1ed | 218 | if (CACHE_VAR.rebuild) { |
7f0547d4 | 219 | const connect = () => { |
0f9fe1ed | 220 | if (!CACHE_VAR.ideServer) { |
221 | CACHE_VAR.ideServer = true; | |
7f0547d4 | 222 | |
223 | return ide.connect(psModule) | |
224 | .then(ideServer => { | |
0f9fe1ed | 225 | CACHE_VAR.ideServer = ideServer; |
7f0547d4 | 226 | return psModule; |
227 | }) | |
228 | .then(ide.loadWithRetry) | |
229 | .catch(error => { | |
0f9fe1ed | 230 | if (CACHE_VAR.ideServer.kill) { |
7f0547d4 | 231 | debug('ide failed to initially load modules, stopping the ide server process'); |
232 | ||
0f9fe1ed | 233 | CACHE_VAR.ideServer.kill(); |
7f0547d4 | 234 | } |
235 | ||
0f9fe1ed | 236 | CACHE_VAR.ideServer = null; |
7f0547d4 | 237 | |
238 | return Promise.reject(error); | |
239 | }) | |
240 | ; | |
241 | } | |
242 | else { | |
243 | return Promise.resolve(psModule); | |
244 | } | |
245 | }; | |
246 | ||
247 | const rebuild = () => | |
78e2b0d9 | 248 | ide.rebuild(psModule) |
249 | .then(() => | |
250 | toJavaScript(psModule) | |
466c0068 | 251 | .then(js => sourceMaps(psModule, js)) |
78e2b0d9 | 252 | .then(psModule.load) |
253 | .catch(psModule.reject) | |
254 | ) | |
255 | .catch(error => { | |
7f0547d4 | 256 | if (error instanceof ide.UnknownModuleError) { |
78e2b0d9 | 257 | // Store the modules that trigger a recompile due to an |
258 | // unknown module error. We need to wait until compilation is | |
259 | // done before loading these files. | |
260 | ||
0f9fe1ed | 261 | CACHE_VAR.deferred.push(psModule); |
78e2b0d9 | 262 | |
0f9fe1ed | 263 | if (!CACHE_VAR.compilationStarted) { |
264 | CACHE_VAR.compilationStarted = true; | |
7f0547d4 | 265 | |
266 | return compile(psModule) | |
267 | .then(() => { | |
0f9fe1ed | 268 | CACHE_VAR.compilationFinished = true; |
7f0547d4 | 269 | }) |
78e2b0d9 | 270 | .then(() => |
0f9fe1ed | 271 | Promise.map(CACHE_VAR.deferred, psModule => |
78e2b0d9 | 272 | ide.load(psModule) |
273 | .then(() => toJavaScript(psModule)) | |
466c0068 | 274 | .then(js => sourceMaps(psModule, js)) |
78e2b0d9 | 275 | .then(psModule.load) |
276 | ) | |
277 | ) | |
278 | .catch(error => { | |
0f9fe1ed | 279 | CACHE_VAR.deferred[0].reject(error); |
78e2b0d9 | 280 | |
0f9fe1ed | 281 | CACHE_VAR.deferred.slice(1).forEach(psModule => { |
78e2b0d9 | 282 | psModule.reject(new Error('purs-loader failed')); |
283 | }) | |
284 | }) | |
7f0547d4 | 285 | ; |
286 | } | |
287 | else { | |
78e2b0d9 | 288 | // The compilation has started. We must wait until it is |
289 | // done in order to ensure the module map contains all of | |
290 | // the unknown modules. | |
7f0547d4 | 291 | } |
292 | } | |
293 | else { | |
294 | debug('ide rebuild failed due to an unhandled error: %o', error); | |
295 | ||
78e2b0d9 | 296 | psModule.reject(error); |
7f0547d4 | 297 | } |
298 | }) | |
299 | ; | |
300 | ||
78e2b0d9 | 301 | connect().then(rebuild); |
7de41f10 | 302 | } |
0f9fe1ed | 303 | else if (CACHE_VAR.compilationFinished) { |
7f0547d4 | 304 | debugVerbose('compilation is already finished, loading module %s', psModule.name); |
7de41f10 | 305 | |
7f0547d4 | 306 | toJavaScript(psModule) |
466c0068 | 307 | .then(js => sourceMaps(psModule, js)) |
7f0547d4 | 308 | .then(psModule.load) |
309 | .catch(psModule.reject); | |
7de41f10 | 310 | } |
7f0547d4 | 311 | else { |
312 | // The compilation has not finished yet. We need to wait for | |
313 | // compilation to finish before the loaders run so that references | |
0f9fe1ed | 314 | // to compiled output are valid. Push the modules into the CACHE_VAR to |
7f0547d4 | 315 | // be loaded once the complation is complete. |
316 | ||
0f9fe1ed | 317 | CACHE_VAR.deferred.push(psModule); |
7f0547d4 | 318 | |
0f9fe1ed | 319 | if (!CACHE_VAR.compilationStarted) { |
320 | CACHE_VAR.compilationStarted = true; | |
7f0547d4 | 321 | |
322 | compile(psModule) | |
323 | .then(() => { | |
0f9fe1ed | 324 | CACHE_VAR.compilationFinished = true; |
7f0547d4 | 325 | }) |
326 | .then(() => { | |
327 | if (options.bundle) { | |
0f9fe1ed | 328 | return bundle(options, CACHE_VAR.bundleModules); |
7f0547d4 | 329 | } |
330 | }) | |
7f0547d4 | 331 | .then(() => |
0f9fe1ed | 332 | Promise.map(CACHE_VAR.deferred, psModule => |
78e2b0d9 | 333 | toJavaScript(psModule) |
466c0068 | 334 | .then(js => sourceMaps(psModule, js)) |
78e2b0d9 | 335 | .then(psModule.load) |
7f0547d4 | 336 | ) |
337 | ) | |
338 | .catch(error => { | |
0f9fe1ed | 339 | CACHE_VAR.deferred[0].reject(error); |
7f0547d4 | 340 | |
0f9fe1ed | 341 | CACHE_VAR.deferred.slice(1).forEach(psModule => { |
7f0547d4 | 342 | psModule.reject(new Error('purs-loader failed')); |
343 | }) | |
344 | }) | |
345 | ; | |
346 | } | |
347 | else { | |
348 | // The complation has started. Nothing to do but wait until it is | |
349 | // done before loading all of the modules. | |
350 | } | |
7de41f10 AM |
351 | } |
352 | } |