Add license, copy of docs/licensing.mdadd-license

1 files changed, 70 insertions, 0 deletions

diff --git a/LICENSE.md b/LICENSE.md
new file mode 100644
index 000000000..caf8f1f31
--- /dev/null
+++ b/LICENSE.md
@@ -0,0 +1,70 @@
+# License
+
+Bun itself is MIT-licensed.
+
+## JavaScriptCore
+
+Bun statically links JavaScriptCore (and WebKit) which is LGPL-2 licensed. WebCore files from WebKit are also licensed under LGPL2. Per LGPL2:
+
+> (1) If you statically link against an LGPL’d library, you must also provide your application in an object (not necessarily source) format, so that a user has the opportunity to modify the library and relink the application.
+
+You can find the patched version of WebKit used by Bun here: <https://github.com/oven-sh/webkit>. If you would like to relink Bun with changes:
+
+- `git submodule update --init --recursive`
+- `make jsc`
+- `zig build`
+
+This compiles JavaScriptCore, compiles Bun’s `.cpp` bindings for JavaScriptCore (which are the object files using JavaScriptCore) and outputs a new `bun` binary with your changes.
+
+## Linked libraries
+
+Bun statically links these libraries:
+
+| Library                                                                 | License                                                                                      |
+| ----------------------------------------------------------------------- | -------------------------------------------------------------------------------------------- |
+| [`boringssl`](https://boringssl.googlesource.com/boringssl/)            | [several licenses](https://boringssl.googlesource.com/boringssl/+/refs/heads/master/LICENSE) |
+| [`libarchive`](https://github.com/libarchive/libarchive)                | [several licenses](https://github.com/libarchive/libarchive/blob/master/COPYING)             |
+| [`lol-html`](https://github.com/cloudflare/lol-html/tree/master/c-api)  | BSD 3-Clause                                                                                 |
+| [`mimalloc`](https://github.com/microsoft/mimalloc)                     | MIT                                                                                          |
+| [`picohttp`](https://github.com/h2o/picohttpparser)                     | dual-licensed under the Perl License or the MIT License                                      |
+| [`zstd`](https://github.com/facebook/zstd)                              | dual-licensed under the BSD License or GPLv2 license                                         |
+| [`simdutf`](https://github.com/simdutf/simdutf)                         | Apache 2.0                                                                                   |
+| [`tinycc`](https://github.com/tinycc/tinycc)                            | LGPL v2.1                                                                                    |
+| [`uSockets`](https://github.com/uNetworking/uSockets)                   | Apache 2.0                                                                                   |
+| [`zlib-cloudflare`](https://github.com/cloudflare/zlib)                 | zlib                                                                                         |
+| [`c-ares`](https://github.com/c-ares/c-ares)                            | MIT licensed                                                                                 |
+| [`libicu`](https://github.com/unicode-org/icu) 72                       | [license here](https://github.com/unicode-org/icu/blob/main/icu4c/LICENSE)                   |
+| A fork of [`uWebsockets`](https://github.com/jarred-sumner/uwebsockets) | Apache 2.0 licensed                                                                          |
+
+## Polyfills
+
+For compatibility reasons, the following packages are embedded into Bun's binary and injected if imported.
+
+| Package                                                                  | License |
+| ------------------------------------------------------------------------ | ------- |
+| [`assert`](https://npmjs.com/package/assert)                             | MIT     |
+| [`browserify-zlib`](https://npmjs.com/package/browserify-zlib)           | MIT     |
+| [`buffer`](https://npmjs.com/package/buffer)                             | MIT     |
+| [`constants-browserify`](https://npmjs.com/package/constants-browserify) | MIT     |
+| [`crypto-browserify`](https://npmjs.com/package/crypto-browserify)       | MIT     |
+| [`domain-browser`](https://npmjs.com/package/domain-browser)             | MIT     |
+| [`events`](https://npmjs.com/package/events)                             | MIT     |
+| [`https-browserify`](https://npmjs.com/package/https-browserify)         | MIT     |
+| [`os-browserify`](https://npmjs.com/package/os-browserify)               | MIT     |
+| [`path-browserify`](https://npmjs.com/package/path-browserify)           | MIT     |
+| [`process`](https://npmjs.com/package/process)                           | MIT     |
+| [`punycode`](https://npmjs.com/package/punycode)                         | MIT     |
+| [`querystring-es3`](https://npmjs.com/package/querystring-es3)           | MIT     |
+| [`stream-browserify`](https://npmjs.com/package/stream-browserify)       | MIT     |
+| [`stream-http`](https://npmjs.com/package/stream-http)                   | MIT     |
+| [`string_decoder`](https://npmjs.com/package/string_decoder)             | MIT     |
+| [`timers-browserify`](https://npmjs.com/package/timers-browserify)       | MIT     |
+| [`tty-browserify`](https://npmjs.com/package/tty-browserify)             | MIT     |
+| [`url`](https://npmjs.com/package/url)                                   | MIT     |
+| [`util`](https://npmjs.com/package/util)                                 | MIT     |
+| [`vm-browserify`](https://npmjs.com/package/vm-browserify)               | MIT     |
+
+## Additional credits
+
+- Bun's JS transpiler, CSS lexer, and Node.js module resolver source code is a Zig port of [@evanw](https://github.com/evanw)’s [esbuild](https://github.com/evanw/esbuild) project.
+- Credit to [@kipply](https://github.com/kipply) for the name "Bun"!