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Refactor handling of import.meta.url and add option to configure beha…
…viour (#2785) * Note topics to fix * Merge compact and non-compact import.meta.url mechanisms * Extract more common code * Refactor import.meta.url handling * Add option to configure import.meta.url resolution * Fix dependencies again * Fix windows tests * Switch to using a plugin hook * Add format to parameters and move functionality into default plugin * Generalize hook to handle all occurrences of `import.meta`
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,109 +1,88 @@ | ||
| import MagicString from 'magic-string'; | ||
| import { dirname, normalize, relative } from '../../utils/path'; | ||
| import { RenderOptions } from '../../utils/renderHelpers'; | ||
| import { PluginDriver } from '../../utils/pluginDriver'; | ||
| import Identifier from './Identifier'; | ||
| import Literal from './Literal'; | ||
| import MemberExpression from './MemberExpression'; | ||
| import * as NodeType from './NodeType'; | ||
| import { NodeBase } from './shared/Node'; | ||
|
|
||
| const globalImportMetaUrlMechanism = `(typeof document !== 'undefined' ? document.currentScript && document.currentScript.src || document.baseURI : new (typeof URL !== 'undefined' ? URL : require('ur'+'l').URL)('file:' + __filename).href)`; | ||
| const importMetaUrlMechanisms: Record<string, string> = { | ||
| amd: `new URL((typeof process !== 'undefined' && process.versions && process.versions.node ? 'file:' : '') + module.uri).href`, | ||
| cjs: `new (typeof URL !== 'undefined' ? URL : require('ur'+'l').URL)((process.browser ? '' : 'file:') + __filename, process.browser && document.baseURI).href`, | ||
| iife: globalImportMetaUrlMechanism, | ||
| umd: globalImportMetaUrlMechanism | ||
| }; | ||
| const getResolveUrl = (path: string, URL: string = 'URL') => `new ${URL}(${path}).href`; | ||
|
|
||
| const globalImportMetaUrlMechanismCompact = `(typeof document!=='undefined'?document.currentScript&&document.currentScript.src||document.baseURI:new(typeof URL!=='undefined'?URL:require('ur'+'l').URL)('file:'+__filename).href)`; | ||
| const importMetaUrlMechanismsCompact: Record<string, string> = { | ||
| amd: `new URL((typeof process!=='undefined'&&process.versions&&process.versions.node?'file:':'')+module.uri).href`, | ||
| cjs: `new(typeof URL!=='undefined'?URL:require('ur'+'l').URL)((process.browser?'':'file:')+__filename,process.browser&&document.baseURI).href`, | ||
| iife: globalImportMetaUrlMechanismCompact, | ||
| umd: globalImportMetaUrlMechanismCompact | ||
| }; | ||
| const amdModuleUrl = `(typeof process !== 'undefined' && process.versions && process.versions.node ? 'file:' : '') + module.uri`; | ||
|
|
||
| const globalRelUrlMechanism = (relPath: string, compact: boolean) => { | ||
| const _ = compact ? '' : ' '; | ||
| return `new${_}(typeof URL${_}!==${_}'undefined'${_}?${_}URL${_}:${_}require('ur'+'l').URL)((typeof document${_}!==${_}'undefined'${_}?${_}document.currentScript${_}&&${_}document.currentScript.src${_}||${_}document.baseURI${_}:${_}'file:'${_}+${_}__filename)${_}+${_}'/../${relPath}').href`; | ||
| const globalRelUrlMechanism = (relPath: string) => { | ||
| return getResolveUrl( | ||
| `(typeof document !== 'undefined' ? document.currentScript && document.currentScript.src || document.baseURI : 'file:' + __filename) + '/../${relPath}'`, | ||
| `(typeof URL !== 'undefined' ? URL : require('ur'+'l').URL)` | ||
| ); | ||
| }; | ||
|
|
||
| const relUrlMechanisms: Record<string, (relPath: string, compact: boolean) => string> = { | ||
| amd: (relPath: string, compact: boolean) => { | ||
| const _ = compact ? '' : ' '; | ||
| return `new URL((typeof process${_}!==${_}'undefined'${_}&&${_}process.versions${_}&&${_}process.versions.node${_}?${_}'file:'${_}:${_}'')${_}+${_}module.uri${_}+${_}'/../${relPath}').href`; | ||
| }, | ||
| cjs: (relPath: string, compact: boolean) => { | ||
| const _ = compact ? '' : ' '; | ||
| return `new${_}(typeof URL${_}!==${_}'undefined'${_}?${_}URL${_}:${_}require('ur'+'l').URL)((process.browser${_}?${_}''${_}:${_}'file:')${_}+${_}__dirname${_}+${_}'/${relPath}',${_}process.browser${_}&&${_}document.baseURI).href`; | ||
| }, | ||
| es: (relPath: string, compact: boolean) => { | ||
| const _ = compact ? '' : ' '; | ||
| return `new URL('../${relPath}',${_}import.meta.url).href`; | ||
| }, | ||
| const relUrlMechanisms: Record<string, (relPath: string) => string> = { | ||
| amd: (relPath: string) => getResolveUrl(`${amdModuleUrl} + '/../${relPath}'`), | ||
| cjs: (relPath: string) => | ||
| getResolveUrl( | ||
| `(process.browser ? '' : 'file:') + __dirname + '/${relPath}', process.browser && document.baseURI`, | ||
| `(typeof URL !== 'undefined' ? URL : require('ur'+'l').URL)` | ||
| ), | ||
| es: (relPath: string) => getResolveUrl(`'../${relPath}', import.meta.url`), | ||
| iife: globalRelUrlMechanism, | ||
| system: (relPath: string, compact: boolean) => { | ||
| const _ = compact ? '' : ' '; | ||
| return `new URL('../${relPath}',${_}module.url).href`; | ||
| }, | ||
| system: (relPath: string) => getResolveUrl(`'../${relPath}', module.url`), | ||
| umd: globalRelUrlMechanism | ||
| }; | ||
|
|
||
| export default class MetaProperty extends NodeBase { | ||
| meta: Identifier; | ||
| property: Identifier; | ||
| rendered: boolean; | ||
| type: NodeType.tMetaProperty; | ||
|
|
||
| initialise() { | ||
| if (this.meta.name === 'import') { | ||
| this.rendered = false; | ||
| this.context.addImportMeta(this); | ||
| } | ||
| this.included = false; | ||
| } | ||
|
|
||
| render(code: MagicString, options: RenderOptions) { | ||
| if (this.meta.name === 'import') this.rendered = true; | ||
| super.render(code, options); | ||
| } | ||
|
|
||
| renderFinalMechanism( | ||
| code: MagicString, | ||
| chunkId: string, | ||
| format: string, | ||
| compact: boolean | ||
| pluginDriver: PluginDriver | ||
| ): boolean { | ||
| if (!this.rendered) return false; | ||
|
|
||
| if (this.parent instanceof MemberExpression === false) return false; | ||
|
|
||
| const parent = <MemberExpression>this.parent; | ||
|
|
||
| let importMetaProperty: string; | ||
| if (parent.property instanceof Identifier) importMetaProperty = parent.property.name; | ||
| else if (parent.property instanceof Literal && typeof parent.property.value === 'string') | ||
| importMetaProperty = parent.property.value; | ||
| else return false; | ||
| if (!this.included) return false; | ||
| const parent = this.parent; | ||
| const importMetaProperty = | ||
| parent instanceof MemberExpression && typeof parent.propertyKey === 'string' | ||
| ? parent.propertyKey | ||
| : null; | ||
|
|
||
| // support import.meta.ROLLUP_ASSET_URL_[ID] | ||
| if (importMetaProperty.startsWith('ROLLUP_ASSET_URL_')) { | ||
| if (importMetaProperty && importMetaProperty.startsWith('ROLLUP_ASSET_URL_')) { | ||
| const assetFileName = this.context.getAssetFileName(importMetaProperty.substr(17)); | ||
| const relPath = normalize(relative(dirname(chunkId), assetFileName)); | ||
| code.overwrite(parent.start, parent.end, relUrlMechanisms[format](relPath, compact)); | ||
| code.overwrite( | ||
| (parent as MemberExpression).start, | ||
| (parent as MemberExpression).end, | ||
| relUrlMechanisms[format](relPath) | ||
| ); | ||
| return true; | ||
| } | ||
|
|
||
| if (format === 'system') { | ||
| code.overwrite(this.meta.start, this.meta.end, 'module'); | ||
| } else if (importMetaProperty === 'url') { | ||
| const importMetaUrlMechanism = (compact | ||
| ? importMetaUrlMechanismsCompact | ||
| : importMetaUrlMechanisms)[format]; | ||
| if (importMetaUrlMechanism) code.overwrite(parent.start, parent.end, importMetaUrlMechanism); | ||
| const replacement = pluginDriver.hookFirstSync<string | void>('resolveImportMeta', [ | ||
| importMetaProperty, | ||
| { | ||
| chunkId, | ||
| format, | ||
| moduleId: this.context.module.id | ||
| } | ||
| ]); | ||
| if (typeof replacement === 'string') { | ||
| if (parent instanceof MemberExpression) { | ||
| code.overwrite(parent.start, parent.end, replacement); | ||
| } else { | ||
| code.overwrite(this.start, this.end, replacement); | ||
| } | ||
| return true; | ||
| } | ||
|
|
||
| return false; | ||
| } | ||
| } |
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