feat(prettier-config): add inline plugin to format package.json (#159)

.changeset/fast-ways-bow.md

@@ -0,0 +1,5 @@
+---
+"@bfra.me/prettier-config": minor
+---
+
+Add an inline Prettier plugin to format `package.json` files using [prettier-package-json](https://github.com/cameronhunter/prettier-package-json)

.gitignore

@@ -8,3 +8,5 @@ yarn.lock
 node_modules
 oclif.manifest.json
 *.tsbuildinfo
+*.d.ts.map
+*.js.map

.vscode/settings.json

@@ -8,6 +8,8 @@
 
     "cSpell.words": ["bfra", "frameworkers"],
 
+    "prettier.enable": true,
+
     "typescript.enablePromptUseWorkspaceTsdk": true,
     "typescript.tsdk": "node_modules/typescript/lib"
 }

packages/prettier-config/prettier.config.ts

@@ -1,4 +1,6 @@
-import type {Config} from 'prettier'
+import type {Config, ParserOptions} from 'prettier'
+import {parsers} from 'prettier/plugins/babel'
+import {format, type Options as PrettierPackageJsonOptions} from 'prettier-package-json'
 
 /**
  * Shared Prettier configuration for bfra.me projects.
@@ -60,6 +62,28 @@ const config: Config = {
       },
     },
   ],
+
+  plugins: [
+    {
+      parsers: {
+        'json-stringify': {
+          ...parsers['json-stringify'],
+
+          preprocess(text: string, options: ParserOptions) {
+            if (/package.*json$/u.test(options.filepath)) {
+              return format(JSON.parse(text), {
+                tabWidth: options.tabWidth,
+                useTabs: options.useTabs === true,
+                ...((options['prettier-package-json'] ??
+                  {}) as Partial<PrettierPackageJsonOptions>),
+              })
+            }
+            return text
+          },
+        },
+      },
+    },
+  ],
 }
 
 export default config

packages/prettier-config/tsconfig.json

@@ -2,8 +2,6 @@
   "$schema": "http://json.schemastore.org/tsconfig",
   "extends": "@bfra.me/tsconfig",
   "compilerOptions": {
-    "inlineSourceMap": true,
-    "sourceMap": false,
     "outDir": ".",
     "rootDir": "."
   },