From da610bff1dc2d303404638afea9e007e7726f75c Mon Sep 17 00:00:00 2001
From: Sidharth Vinod <sidharthv96@gmail.com>
Date: Fri, 18 Apr 2025 14:55:53 +0530
Subject: [PATCH] chore: Add `@mermaid-js/tiny` package

---
 .esbuild/build.ts          | 17 ++++++++++++++++-
 packages/tiny/README.md    | 37 +++++++++++++++++++++++++++++++++++++
 packages/tiny/package.json | 25 +++++++++++++++++++++++++
 3 files changed, 78 insertions(+), 1 deletion(-)
 create mode 100644 packages/tiny/README.md
 create mode 100644 packages/tiny/package.json

diff --git a/.esbuild/build.ts b/.esbuild/build.ts
index 4eb6ab002..143546bc1 100644
--- a/.esbuild/build.ts
+++ b/.esbuild/build.ts
@@ -1,5 +1,5 @@
 import { build } from 'esbuild';
-import { mkdir, writeFile } from 'node:fs/promises';
+import { mkdir, readFile, rename, writeFile } from 'node:fs/promises';
 import { packageOptions } from '../.build/common.js';
 import { generateLangium } from '../.build/generateLangium.js';
 import type { MermaidBuildOptions } from './util.js';
@@ -77,6 +77,20 @@ const handler = (e) => {
   process.exit(1);
 };
 
+const buildTinyMermaid = async () => {
+  await mkdir('./packages/tiny/dist', { recursive: true });
+  await rename(
+    './packages/mermaid/dist/mermaid.tiny.min.js',
+    './packages/tiny/dist/mermaid.tiny.min.js'
+  );
+  // Copy version from mermaid's package.json to tiny's package.json
+  const mermaidPkg = JSON.parse(await readFile('./packages/mermaid/package.json', 'utf8'));
+  const tinyPkg = JSON.parse(await readFile('./packages/tiny/package.json', 'utf8'));
+  tinyPkg.version = mermaidPkg.version;
+
+  await writeFile('./packages/tiny/package.json', JSON.stringify(tinyPkg, null, 2) + '\n');
+};
+
 const main = async () => {
   await generateLangium();
   await mkdir('stats', { recursive: true });
@@ -85,6 +99,7 @@ const main = async () => {
   for (const pkg of packageNames) {
     await buildPackage(pkg).catch(handler);
   }
+  await buildTinyMermaid();
 };
 
 void main();
diff --git a/packages/tiny/README.md b/packages/tiny/README.md
new file mode 100644
index 000000000..b01b0c4a8
--- /dev/null
+++ b/packages/tiny/README.md
@@ -0,0 +1,37 @@
+# Tiny Mermaid
+
+This is a tiny version of mermaid that is optimized for the web. It is a subset of the mermaid library and is designed to be used in the browser via CDN.
+
+## Usage via NPM
+
+This package is not meant to be installed directly from npm. It is designed to be used via CDN.
+If you need to use mermaid in your project, please install the full [`mermaid` package](https://www.npmjs.com/package/mermaid) instead.
+
+## Removals from mermaid
+
+This does not support
+
+- Mindmap Diagram
+- Architecture Diagram
+- Katex rendering
+
+## Usage via CDN
+
+### Latest version
+
+```html
+<script src="https://cdn.jsdelivr.net/npm/@mermaid-js/tiny/dist/mermaid.tiny.js"></script>
+```
+
+### Specific version
+
+```html
+<!-- Format -->
+<script src="https://cdn.jsdelivr.net/npm/@mermaid-js/tiny@<MERMAID_MAJOR_VERSION>/dist/mermaid.tiny.js"></script>
+
+<!-- Pinning major version -->
+<script src="https://cdn.jsdelivr.net/npm/@mermaid-js/tiny@11/dist/mermaid.tiny.js"></script>
+
+<!-- Pinning specific version -->
+<script src="https://cdn.jsdelivr.net/npm/@mermaid-js/tiny@11.6.0/dist/mermaid.tiny.js"></script>
+```
diff --git a/packages/tiny/package.json b/packages/tiny/package.json
new file mode 100644
index 000000000..2ecc0caa3
--- /dev/null
+++ b/packages/tiny/package.json
@@ -0,0 +1,25 @@
+{
+  "name": "@mermaid-js/tiny",
+  "version": "11.6.0",
+  "description": "Tiny version of mermaid",
+  "type": "commonjs",
+  "main": "./dist/mermaid.tiny.min.js",
+  "scripts": {
+    "clean": "rimraf dist"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mermaid-js/mermaid"
+  },
+  "author": "Sidharth Vinod",
+  "license": "MIT",
+  "dependencies": {},
+  "devDependencies": {},
+  "files": [
+    "dist/",
+    "README.md"
+  ],
+  "publishConfig": {
+    "access": "public"
+  }
+}