build: Add jscpd config for local and CI duplication scans (#39198)

Co-authored-by: Claude Sonnet 5 <[email protected]>

.gitignore

@@ -9,6 +9,7 @@ dist
 coverage
 coverage-by-spec
 coverage-by-spec-backend
+/report
 npm-debug.log*
 yarn.lock
 google-generated-credentials.json

.jscpd.json

@@ -0,0 +1,26 @@
+{
+  "threshold": 10.5,
+  "reporters": ["json", "html"],
+  "gitignore": true,
+  "ignore": [
+    "**/__snapshots__/**",
+    "**/*.snap",
+    "**/fixtures/**",
+    "**/locales/**",
+    "**/i18n/**",
+    "**/*.generated.*",
+    "**/__schema__/**",
+    "**/cassettes/**",
+    "packages/@n8n/typeorm/test/**",
+    "docs/generated/**",
+    "**/test/**/*.workflow.json",
+    "**/tests/**/*.workflow.json",
+    "**/__tests__/**/*.workflow.json",
+    "**/test/**/workflow.*.json",
+    "**/tests/**/workflow.*.json",
+    "**/__tests__/**/workflow.*.json",
+    "**/test/**/workflows/**/*.json",
+    "**/tests/**/workflows/**/*.json",
+    "**/__tests__/**/workflows/**/*.json"
+  ]
+}

package.json

@@ -58,6 +58,7 @@
     "profile:ci-tests": "node scripts/ci-test-phase-profile.mjs",
     "test:inventory": "node scripts/test-inventory.mjs",
     "format:check": "turbo run format:check",
+    "jscpd": "jscpd",
     "lint": "turbo run lint",
     "lint:styles": "turbo run lint:styles",
     "lint:styles:fix": "turbo run lint:styles:fix",
@@ -111,6 +112,7 @@
     "@types/supertest": "^6.0.3",
     "cross-env": "^7.0.3",
     "eslint": "catalog:",
+    "jscpd": "5.2.0",
     "knip": "catalog:",
     "lefthook": "^1.13.6",
     "nodemon": "^3.0.1",

pnpm-lock.yaml

@@ -1117,6 +1117,9 @@ importers:
       eslint:
         specifier: 'catalog:'
         version: 9.29.0([email protected])([email protected])
+      jscpd:
+        specifier: 5.2.0
+        version: 5.2.0
       knip:
         specifier: 'catalog:'
         version: 6.35.1
@@ -19683,6 +19686,55 @@ packages:
   [email protected]:
     resolution: {integrity: sha512-4bYVV3aAMtDTTu4+xsDYa6sy9GyJ69/amsu9sYF2zqjiEoZA5xJi3BrfX3uY+/IekIu7MwdObdbDWpoZdBv3/A==}
 
+  [email protected]:
+    resolution: {integrity: sha512-QnEDfTH2MymizVHiEQpqfYEj63k1DW7QC0QBZoevh+o/iHQrHxKlgrakMysUIwIJlnmvqPB6iP/G3dBpFmnmeQ==}
+    cpu: [arm64]
+    os: [darwin]
+
+  [email protected]:
+    resolution: {integrity: sha512-P2lYEK0Yyn+0z7618+9A0NErywjaPrwSYcId3gRSt5l0cyKBwhMmyFLX/2t3G2HRi+GX+OT2A/YpWvvTzLJJ1A==}
+    cpu: [x64]
+    os: [darwin]
+
+  [email protected]:
+    resolution: {integrity: sha512-UhdX9vvCFwoG1cViNqFyvxfqNtJ+xWbGsgZ5PbcgUx2OLWnvjhkjihPw/fOUM9IoxHaT66AE5pipaV/oQE/76A==}
+    cpu: [arm64]
+    os: [linux]
+    libc: [glibc]
+
+  [email protected]:
+    resolution: {integrity: sha512-13DsZCQ58fOMUX6mU8DZtiTdIk+9Gp2xLu6mtc6fmqqZRJoRHQSSDvMqRVedCqArquxc0I+tqQtZO4n7/8QJxA==}
+    cpu: [arm64]
+    os: [linux]
+    libc: [musl]
+
+  [email protected]:
+    resolution: {integrity: sha512-p88BpA5QzyZzyF8uYeVCz9ZBoZYg8s6AwcDc3NkIDNTbrrF0sKqgGjclGWAoJvYAiGExiFNqV768pVHsE//l0Q==}
+    cpu: [x64]
+    os: [linux]
+    libc: [glibc]
+
+  [email protected]:
+    resolution: {integrity: sha512-6DgIxJpS7L4bb1DkYrqC0SflMY2/2/3Dl0kZJ1In6SeSENcTaZ12W1zX3kNf7wVUDFgPi94TuSxrw3N2TqRhRg==}
+    cpu: [x64]
+    os: [linux]
+    libc: [musl]
+
+  [email protected]:
+    resolution: {integrity: sha512-DI84oCG+L5sYhmYanXjjydXlFzC194/NJA6F7W8cmOI1rKSnWrgIjUtvTmXumygwTK/eAXkK7rFBqFnyiLEzdw==}
+    cpu: [arm64]
+    os: [win32]
+
+  [email protected]:
+    resolution: {integrity: sha512-EH4chck2EIehosfy7q6hxaKgzlaZv/dZhUHtjBmBf81d5/ZDfa6BsKw2gM8PSoNC0QXznWXv9uQcFWsV+P9v8A==}
+    cpu: [x64]
+    os: [win32]
+
+  [email protected]:
+    resolution: {integrity: sha512-6f4qhJGIeR/ZvAkZByfpPw5H28SNEE4fgJ4GXxVuLMiEg7xWrAlUdm0crIJPY6dmykvgdM83ZRrWJXg11fQlYg==}
+    engines: {node: '>=18'}
+    hasBin: true
+
   [email protected]:
     resolution: {integrity: sha512-2i27vgvlUsGEBO9+/kJQRbtqtm+191b5zAZrU/UezVmnC2dlDAFLgDYJvAEi94T4kjsRKkezEtLQTgsNEsW2lQ==}
     engines: {node: '>=18'}
@@ -38687,6 +38739,41 @@ snapshots:
   [email protected]:
     optional: true
 
+  [email protected]:
+    optional: true
+
+  [email protected]:
+    optional: true
+
+  [email protected]:
+    optional: true
+
+  [email protected]:
+    optional: true
+
+  [email protected]:
+    optional: true
+
+  [email protected]:
+    optional: true
+
+  [email protected]:
+    optional: true
+
+  [email protected]:
+    optional: true
+
+  [email protected]:
+    optionalDependencies:
+      jscpd-darwin-arm64: 5.2.0
+      jscpd-darwin-x64: 5.2.0
+      jscpd-linux-arm64-gnu: 5.2.0
+      jscpd-linux-arm64-musl: 5.2.0
+      jscpd-linux-x64-gnu: 5.2.0
+      jscpd-linux-x64-musl: 5.2.0
+      jscpd-windows-arm64-msvc: 5.2.0
+      jscpd-windows-x64-msvc: 5.2.0
+
   [email protected]([email protected])([email protected])([email protected]):
     dependencies:
       cssstyle: 3.0.0