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feat: always include tslint and typescript in project dev-dependencies
This change is necessary to allow `@loopback/tslint-config` to include tslint extensions from 3rd-party packages, because these extensions typically have a peer dependency on `tslint`. Another benefit is that projects can decide now which version of `tsc` and `tslint` they want to use, independently of the version bundled inside `@loopback/build`. To make it easier to keep typescript & tslint version specifiers in different places in sync, a new helper script is added to propagate changes in dev-dependencies from monorepo's root package.json to example projects: "npm run sync-dev-deps"
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| #!/usr/bin/env node | ||
| // Copyright IBM Corp. 2017,2018. All Rights Reserved. | ||
| // Node module: loopback-next | ||
| // This file is licensed under the MIT License. | ||
| // License text available at https://opensource.org/licenses/MIT | ||
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| /** | ||
| * This is an internal script to synchronize versions of dev-dependencies | ||
| * from monorepo's package.json to individual example packages. | ||
| */ | ||
| 'use strict'; | ||
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| const path = require('path'); | ||
| const fs = require('fs'); | ||
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| const Project = require('@lerna/project'); | ||
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| async function syncDevDeps() { | ||
| const project = new Project(process.cwd()); | ||
| const packages = await project.getPackages(); | ||
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| const rootPath = project.rootPath; | ||
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| // Load dependencies from `packages/build/package.json` | ||
| const buildDeps = require(path.join(rootPath, 'packages/build/package.json')) | ||
| .dependencies; | ||
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| const masterDeps = { | ||
| typescript: buildDeps.typescript, | ||
| tslint: buildDeps.tslint, | ||
| }; | ||
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| // Update typescript & tslint dependencies in individual packages | ||
| for (const pkg of packages) { | ||
| const data = readJsonFile(pkg.manifestLocation); | ||
| let modified = false; | ||
| for (const dep in masterDeps) { | ||
| if (data.devDependencies && dep in data.devDependencies) { | ||
| data.devDependencies[dep] = masterDeps[dep]; | ||
| modified = true; | ||
| } | ||
| } | ||
| if (!modified) continue; | ||
| writeJsonFile(pkg.manifestLocation, data); | ||
| } | ||
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| // Update dependencies in monorepo root | ||
| const rootPackage = path.join(rootPath, 'package.json'); | ||
| const data = readJsonFile(rootPackage); | ||
| Object.assign(data.devDependencies, masterDeps); | ||
| writeJsonFile(rootPackage, data); | ||
| } | ||
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| if (require.main === module) syncDevDeps(); | ||
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| function readJsonFile(filePath) { | ||
| return JSON.parse(fs.readFileSync(filePath, 'utf-8')); | ||
| } | ||
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| function writeJsonFile(filePath, data) { | ||
| fs.writeFileSync(filePath, JSON.stringify(data, null, 2) + '\n', 'utf-8'); | ||
| console.log('%s has been updated.', filePath); | ||
| } |
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