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Commit | Line | Data |
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531c751f | 1 | 'use strict'; |
2 | ||
3 | const path = require('path'); | |
4 | ||
5 | const Promise = require('bluebird') | |
6 | ||
7 | const fs = Promise.promisifyAll(require('fs')) | |
8 | ||
9 | const spawn = require('cross-spawn') | |
10 | ||
11 | const debug = require('debug')('purs-loader'); | |
12 | ||
13 | const dargs = require('./dargs'); | |
14 | ||
15 | function compile(psModule) { | |
16 | const options = psModule.options | |
17 | const cache = psModule.cache | |
18 | const stderr = [] | |
19 | ||
20 | if (cache.compilationStarted) return Promise.resolve(psModule) | |
21 | ||
22 | cache.compilationStarted = true | |
23 | ||
24 | const args = dargs(Object.assign({ | |
25 | _: options.src, | |
26 | output: options.output, | |
27 | }, options.pscArgs)) | |
28 | ||
29 | debug('spawning compiler %s %o', options.psc, args) | |
30 | ||
31 | return (new Promise((resolve, reject) => { | |
514ab146 | 32 | debug('compiling PureScript...') |
531c751f | 33 | |
34 | const compilation = spawn(options.psc, args) | |
35 | ||
b683b0b1 | 36 | compilation.stderr.on('data', data => { |
37 | stderr.push(data.toString()); | |
38 | }); | |
531c751f | 39 | |
40 | compilation.on('close', code => { | |
514ab146 | 41 | debug('finished compiling PureScript.') |
531c751f | 42 | cache.compilationFinished = true |
43 | if (code !== 0) { | |
45c62a2c | 44 | const errorMessage = stderr.join(''); |
45 | if (errorMessage.length) { | |
46 | psModule.emitError(errorMessage); | |
47 | } | |
4b99e432 | 48 | reject(new Error('compilation failed')) |
531c751f | 49 | } else { |
45c62a2c | 50 | const warningMessage = stderr.join(''); |
51 | if (options.warnings && warningMessage.length) { | |
52 | psModule.emitWarning(warningMessage); | |
53 | } | |
531c751f | 54 | resolve(psModule) |
55 | } | |
56 | }) | |
57 | })) | |
58 | .then(compilerOutput => { | |
59 | if (options.bundle) { | |
60 | return bundle(options, cache).then(() => psModule) | |
61 | } | |
62 | return psModule | |
63 | }) | |
64 | } | |
65 | module.exports.compile = compile; | |
66 | ||
67 | function bundle(options, cache) { | |
68 | if (cache.bundle) return Promise.resolve(cache.bundle) | |
69 | ||
70 | const stdout = [] | |
71 | const stderr = cache.bundle = [] | |
72 | ||
73 | const args = dargs(Object.assign({ | |
74 | _: [path.join(options.output, '*', '*.js')], | |
75 | output: options.bundleOutput, | |
76 | namespace: options.bundleNamespace, | |
77 | }, options.pscBundleArgs)) | |
78 | ||
79 | cache.bundleModules.forEach(name => args.push('--module', name)) | |
80 | ||
81 | debug('spawning bundler %s %o', options.pscBundle, args.join(' ')) | |
82 | ||
83 | return (new Promise((resolve, reject) => { | |
514ab146 | 84 | debug('bundling PureScript...') |
531c751f | 85 | |
86 | const compilation = spawn(options.pscBundle, args) | |
87 | ||
88 | compilation.stdout.on('data', data => stdout.push(data.toString())) | |
89 | compilation.stderr.on('data', data => stderr.push(data.toString())) | |
90 | compilation.on('close', code => { | |
514ab146 | 91 | debug('finished bundling PureScript.') |
531c751f | 92 | if (code !== 0) { |
45c62a2c | 93 | const errorMessage = stderr.join(''); |
94 | if (errorMessage.length) { | |
95 | psModule.emitError(errorMessage); | |
96 | } | |
4b99e432 | 97 | return reject(new Error('bundling failed')) |
531c751f | 98 | } |
99 | cache.bundle = stderr | |
896c11ec | 100 | resolve(fs.appendFileAsync(options.bundleOutput, `module.exports = ${options.bundleNamespace}`)) |
531c751f | 101 | }) |
102 | })) | |
103 | } |