feat: skip config creation if one already found (#110)

This commit introduces mechanism that'll check for common configuration file locations and respects the original file.

packages/commitlint-config/package.json

@@ -36,7 +36,8 @@
   },
   "dependencies": {
     "@commitlint/cli": "18.0.0",
-    "@commitlint/config-conventional": "18.0.0"
+    "@commitlint/config-conventional": "18.0.0",
+    "@ivuorinen/config-checker": "^1.1.0"
   },
   "gitHead": "23d15f15743fb59c1dbe658615ef2ed51c54d230"
 }

packages/commitlint-config/scripts/postinstall.js

@@ -2,9 +2,18 @@
 
 const fs = require('fs')
 const path = require('path')
+const process = require('process')
+const checkConfig = require('@ivuorinen/config-checker')
+const foundConfig = checkConfig('commitlint')
+
+if (foundConfig.length > 0) {
+  console.log('commitlint-config: Found existing commitlint config file, skipping creation.')
+  console.log('commitlint-config: If you want to create a new config file, please remove the existing one.')
+  console.log(`commitlint-config: Found config files at: ${foundConfig.join(', ')}`)
+  process.exit(0)
+}
 
 const filePath = path.join(process.env.INIT_CWD, '.commitlintrc.json')
-
 const fileConfigObject = {
   extends: ['@ivuorinen/commitlint-config']
 }

packages/commitlint-config/yarn.lock

@@ -192,6 +192,11 @@
   dependencies:
     "@jridgewell/trace-mapping" "0.3.9"
 
+"@ivuorinen/config-checker@^1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@ivuorinen/config-checker/-/config-checker-1.1.0.tgz#73a996445a917627cb558ea69f616978ff97da9d"
+  integrity sha512-YHQSF2yt4YZM0W9jdFXdPUB4X1AicweDJWSJtFw58GVI4+wI8+CJtoKL/Dmbn8F3B6H6gngQHwzENqw80Zsskg==
+
 "@jridgewell/resolve-uri@^3.0.3":
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/@jridgewell/resolve-uri/-/resolve-uri-3.1.1.tgz#c08679063f279615a3326583ba3a90d1d82cc721"