From ba87d38b2fce3b793f6253b1c9b1f94e2a12f8b1 Mon Sep 17 00:00:00 2001
From: Yanick Champoux <yanick@babyl.ca>
Date: Tue, 30 Jan 2024 09:56:06 -0500
Subject: [PATCH] add scripts to format/lint only the delta files

---
 .eslintignore         |  5 +++++
 .eslintrc.cjs         |  2 +-
 .prettierignore       |  3 +++
 CONTRIBUTING.md       |  8 ++++----
 package.json          | 11 +++++++++--
 scripts/changed-files |  3 +++
 6 files changed, 25 insertions(+), 7 deletions(-)
 create mode 100644 .eslintignore
 create mode 100644 .prettierignore
 create mode 100755 scripts/changed-files

diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..111e490
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,5 @@
+scripts/*
+.eslintignore
+.prettierignore
+.github/workflows/*
+*.md
diff --git a/.eslintrc.cjs b/.eslintrc.cjs
index 0bd04ba..f862385 100644
--- a/.eslintrc.cjs
+++ b/.eslintrc.cjs
@@ -11,7 +11,7 @@ module.exports = {
     'plugin:svelte/recommended',
     'prettier',
   ],
-  plugins: ['svelte', 'simple-import-sort'],
+  plugins: ['svelte', 'simple-import-sort', 'json-files'],
   rules: {
     'simple-import-sort/imports': 'error',
   },
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..113f29b
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,3 @@
+scripts/*
+.eslintignore
+.prettierignore
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c7ba039..d5f35da 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -15,10 +15,10 @@ The module is released automatically from the `main` branch using [semantic-rele
 
 ## Development setup
 
-After cloning the repository, use the `setup` script to install development dependencies and the `validate` script to run all checks and tests to verify your setup.
+After cloning the repository, install the project's dependencies and run the `validate` script to run all checks and tests to verify your setup.
 
 ```shell
-npm run setup
+npm install # or `pnpm install`, or `yarn install`, etc.
 npm run validate
 ```
 
@@ -27,13 +27,13 @@ npm run validate
 Run auto-formatting to ensure any changes adhere to the code style of the repository:
 
 ```shell
-npm run format
+npm run format:delta
 ```
 
 To run lint and format checks without making any changes:
 
 ```shell
-npm run lint
+npm run lint:delta
 ```
 
 ### Test
diff --git a/package.json b/package.json
index e4a5b17..b1197ca 100644
--- a/package.json
+++ b/package.json
@@ -44,13 +44,19 @@
   ],
   "scripts": {
     "toc": "doctoc README.md",
-    "lint": "(prettier . --check || true) && eslint .",
+    "lint": "prettier . --check && eslint .",
+    "lint:delta": "npm-run-all -p prettier:delta eslint:delta",
+    "prettier:delta": "prettier --check `./scripts/changed-files`",
+    "eslint:delta": "eslint `./scripts/changed-files`",
     "format": "prettier . --write && eslint . --fix",
+    "format:delta": "npm-run-all format:prettier:delta format:eslint:delta",
+    "format:prettier:delta": "prettier --write `./scripts/changed-files`",
+    "format:eslint:delta": "eslint --fix `./scripts/changed-files`",
     "test": "vitest run --coverage",
     "test:watch": "vitest",
     "test:update": "vitest run --update",
     "setup": "npm install && npm run validate",
-    "validate": "npm-run-all lint test",
+    "validate": "npm-run-all test",
     "contributors:add": "all-contributors add",
     "contributors:generate": "all-contributors generate"
   },
@@ -72,6 +78,7 @@
     "eslint-config-prettier": "9.1.0",
     "eslint-config-standard": "17.1.0",
     "eslint-plugin-import": "2.29.1",
+    "eslint-plugin-json-files": "^4.1.0",
     "eslint-plugin-n": "16.6.2",
     "eslint-plugin-promise": "6.1.1",
     "eslint-plugin-simple-import-sort": "10.0.0",
diff --git a/scripts/changed-files b/scripts/changed-files
new file mode 100755
index 0000000..1275bd8
--- /dev/null
+++ b/scripts/changed-files
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+git diff --name-only --diff-filter=d main