From 631424d1861b701c84c3a3ac4b2ce32dbc35272d Mon Sep 17 00:00:00 2001
From: jorenbroekema <joren.broekema@gmail.com>
Date: Sat, 21 Jan 2023 00:05:58 +0100
Subject: [PATCH] fix: prebundle CJS-only dependency to ESM

---
 .changeset/wild-emus-yawn.md |  5 +++++
 .eslintignore                | 20 ++++++++++++++++++--
 .gitignore                   |  3 ++-
 .prettierignore              | 18 ++++++++++++++++++
 README.md                    |  3 ---
 package.json                 |  3 ++-
 tsconfig.json                |  2 +-
 7 files changed, 46 insertions(+), 8 deletions(-)
 create mode 100644 .changeset/wild-emus-yawn.md
 create mode 100644 .prettierignore

diff --git a/.changeset/wild-emus-yawn.md b/.changeset/wild-emus-yawn.md
new file mode 100644
index 0000000..79c9d37
--- /dev/null
+++ b/.changeset/wild-emus-yawn.md
@@ -0,0 +1,5 @@
+---
+'@tokens-studio/sd-transforms': patch
+---
+
+No longer need to commit to using @rollup/plugin-commonjs. We prebundle the dependency that is CJS-only so users don't need to worry about it.
diff --git a/.eslintignore b/.eslintignore
index 6f0b942..0305e4d 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -1,2 +1,18 @@
-node_modules
-coverage/
\ No newline at end of file
+## editors
+/.idea
+/.vscode
+/*.code-workspace
+/.history
+
+## system files
+.DS_Store
+
+## npm/yarn
+node_modules/
+npm-debug.log
+
+## temp folders
+/coverage/
+
+index.cjs
+src/postcss-calc-ast-parser.js
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index a56d321..0305e4d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,4 +14,5 @@ npm-debug.log
 ## temp folders
 /coverage/
 
-index.cjs
\ No newline at end of file
+index.cjs
+src/postcss-calc-ast-parser.js
\ No newline at end of file
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..0305e4d
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,18 @@
+## editors
+/.idea
+/.vscode
+/*.code-workspace
+/.history
+
+## system files
+.DS_Store
+
+## npm/yarn
+node_modules/
+npm-debug.log
+
+## temp folders
+/coverage/
+
+index.cjs
+src/postcss-calc-ast-parser.js
\ No newline at end of file
diff --git a/README.md b/README.md
index aa43644..0d8bf3a 100644
--- a/README.md
+++ b/README.md
@@ -12,9 +12,6 @@ to work with Design Tokens that are exported from [Tokens Studio](https://tokens
 - Transform Tokens Studio shadow objects to CSS shadow format
 - Registers these transforms, in addition to `attribute/cti`, `name/cti/camelCase` for naming purposes, as a transform group called `tokens-studio`
 
-> If you consume this library using ESM, I am afraid that you will need something like `@rollup/plugin-commonjs` to deal with the fact that I am reliant on a CJS-written library called `postcss-calc-ast-parser` and its dependency `postcss-value-parser`.
-> I will look into creating a PR to those repos to bundle as `mjs` and publish that, or publish it through a fork.
-
 ## Usage
 
 ```js
diff --git a/package.json b/package.json
index b577ac4..b613a36 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
     "src/**/*"
   ],
   "scripts": {
+    "esm-postcss-calc": "rollup node_modules/postcss-calc-ast-parser/dist/index.js --file src/postcss-calc-ast-parser.js --format esm --plugin @rollup/plugin-commonjs --plugin @rollup/plugin-node-resolve",
     "build:cjs": "rollup index.js --file index.cjs --format cjs --plugin @rollup/plugin-commonjs --plugin rollup-plugin-cleanup --plugin @rollup/plugin-node-resolve",
     "build:types": "tsc -p tsconfig.build.types.json",
     "format": "npm run format:eslint && npm run format:prettier",
@@ -26,7 +27,7 @@
     "lint:eslint": "eslint --ext .js,.html .",
     "lint:prettier": "prettier \"**/*.js\" --list-different || (echo '↑↑ these files are not prettier formatted ↑↑' && exit 1)",
     "lint:types": "tsc",
-    "release": "run-p build:* && changeset publish",
+    "release": "npm run esm-postcss-calc && run-p build:* && changeset publish",
     "prepare": "husky install"
   },
   "dependencies": {
diff --git a/tsconfig.json b/tsconfig.json
index 7270811..5a4b2dc 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -16,5 +16,5 @@
     "suppressImplicitAnyIndexErrors": true
   },
   "include": ["**/*.js"],
-  "exclude": ["node_modules", "**/coverage/*"]
+  "exclude": ["node_modules", "**/coverage/*", "src/postcss-calc-ast-parser.js"]
 }