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hapi plugin to use webpack-dev-middleware
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132 changes: 132 additions & 0 deletions
132
packages/electrode-archetype-react-app-dev/lib/module-processor.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| "use strict"; | ||
|
|
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| /** | ||
| * Take webpack Stat JSON output and group modules by npm packages, | ||
| * noting duplicates if there are any. | ||
| */ | ||
|
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| const Path = require("path"); | ||
|
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| const tildaSep = "/~/"; | ||
| const nmSep = "/node_modules/"; | ||
|
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| // match @namespace/packageName/file | ||
| const atModRegex = new RegExp(`([^/]+/[^/]+)/(.+)`); | ||
| // match packageName/file | ||
| const modRegex = new RegExp(`([^/]+)/(.+)`); | ||
|
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| class ModuleProcessor { | ||
| constructor(statJson) { | ||
| this.statJson = statJson; | ||
| this.makeModulesByName(); | ||
| } | ||
|
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| makeModulesByName() { | ||
| const mbn = (this.modulesByName = {}); | ||
| const obj = this.statJson; | ||
|
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| const filterLoaders = name => name.replace(/.*!/, ""); | ||
|
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| if (obj.modules) { | ||
| obj.modules.forEach(module => { | ||
| mbn[filterLoaders(module.name)] = module; | ||
| }); | ||
| } else if (obj.chunks) { | ||
| obj.chunks.forEach(chunk => { | ||
| if (chunk.modules) { | ||
| chunk.modules.forEach(module => { | ||
| mbn[filterLoaders(module.name)] = module; | ||
| }); | ||
| } | ||
| }); | ||
| } | ||
|
|
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| return mbn; | ||
| } | ||
|
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| _splitPathName(name) { | ||
| const pkgs = name.indexOf(tildaSep) < 0 ? [name] : name.split(tildaSep).splice(1); | ||
| const n = pkgs.pop(); | ||
| const match = n.match(n.startsWith("@") ? atModRegex : modRegex); | ||
|
|
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| if (match) { | ||
| return { | ||
| name: match[1], | ||
| parents: pkgs, | ||
| file: match[2] | ||
| }; | ||
| } else { | ||
| return { | ||
| name, | ||
| parents: pkgs, | ||
| file: "" | ||
| }; | ||
| } | ||
| } | ||
| /* | ||
| * | ||
| * { | ||
| * packageName: { | ||
| * $: { | ||
| * modules: { | ||
| * filename: { | ||
| * chunks: [], | ||
| * size: 123 | ||
| * } | ||
| * }, | ||
| * parents: { | ||
| * } | ||
| * } | ||
| * } | ||
| * } | ||
| * @returns {{}|*} | ||
| */ | ||
| makeModulesByPackage() { | ||
| const byPkg = (this.modulesByPackage = {}); | ||
| this.totalSize = 0; | ||
| Object.keys(this.modulesByName).forEach(name => { | ||
| // Ignore "ignored" modules i.e. node shims etc. | ||
| if (name.indexOf("(ignored)") > -1) { | ||
| return; | ||
| } | ||
|
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| const split = this._splitPathName(name); | ||
| const pkg = byPkg[split.name] || (byPkg[split.name] = { size: 0 }); | ||
| const getVersion = parents => { | ||
| try { | ||
| if (split.name !== ".") { | ||
| return require(Path.resolve(parents.join(nmSep), split.name, "package.json")).version; // eslint-disable-line | ||
| } else { | ||
| return "-"; | ||
| } | ||
| } catch (e) { | ||
| return "?"; | ||
| } | ||
| }; | ||
| const getByParents = parents => { | ||
| const parentId = `\$${parents.join(":")}`; | ||
| if (pkg[parentId]) { | ||
| return pkg[parentId]; | ||
| } else { | ||
| return (pkg[parentId] = { | ||
| parents, | ||
| name: split.name, | ||
| size: 0, | ||
| version: getVersion(parents), | ||
| modules: {} | ||
| }); | ||
| } | ||
| }; | ||
| const byParents = getByParents(split.parents); | ||
| const module = this.modulesByName[name]; | ||
| pkg.size += module.size; | ||
| byParents.size += module.size; | ||
| this.totalSize += module.size; | ||
| byParents.modules[split.file] = module; | ||
| }); | ||
|
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| return this.modulesByPackage; | ||
| } | ||
| } | ||
|
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| module.exports = ModuleProcessor; |
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