docs: update readme installation guide (#792)

1. Added information about Homebrew installation (based off this
information [here](https://formulae.brew.sh/formula/luau#default))
2. Added details related to installing binary files that are downloaded
3. Rearranged and added titles for easier reading

Fixes #791.

Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com>
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B. Gibbons 2023-02-23 13:08:45 -08:00 committed by GitHub
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@ -17,12 +17,21 @@ Luau is an embeddable language, but it also comes with two command-line tools by
`luau-analyze` is a command-line type checker and linter; given a set of input files, it produces errors/warnings according to the file configuration, which can be customized by using `--!` comments in the files or [`.luaurc`](https://github.com/Roblox/luau/blob/master/rfcs/config-luaurc.md) files. For details please refer to [type checking]( https://luau-lang.org/typecheck) and [linting](https://luau-lang.org/lint) documentation.
You can download the binaries from [a recent release](https://github.com/Roblox/luau/releases).
# Installation
You can install and run Luau by downloading the compiled binaries from [a recent release](https://github.com/Roblox/luau/releases); note that `luau` and `luau-analyze` binaries from the archives will need to be added to PATH or copied to a directory like `/usr/local/bin` on Linux/macOS.
# Building
Alternatively, you can use one of the packaged distributions (note that these are not maintained by Luau development team):
To build Luau tools or tests yourself, you can use CMake on all platforms:
- macOS: [Install Homebrew](https://docs.brew.sh/Installation) and run `brew install luau`
- Arch Linux: Run `pacman -S luau`
- Alpine Linux: [Enable community repositories](https://wiki.alpinelinux.org/w/index.php?title=Enable_Community_Repository) and run `apk add luau`
After installing, you will want to validate the installation was successful by running the test case [here](https://luau-lang.org/getting-started).
## Building
On all platforms, you can use CMake to run the following commands to build Luau binaries from source:
```sh
mkdir cmake && cd cmake
@ -31,13 +40,13 @@ cmake --build . --target Luau.Repl.CLI --config RelWithDebInfo
cmake --build . --target Luau.Analyze.CLI --config RelWithDebInfo
```
Alternatively, on Linux/macOS you can use make:
Alternatively, on Linux/macOS you can use `make`:
```sh
make config=release luau luau-analyze
```
To integrate Luau into your CMake application projects, at the minimum you'll need to depend on `Luau.Compiler` and `Luau.VM` projects. From there you need to create a new Luau state (using Lua 5.x API such as `lua_newstate`), compile source to bytecode and load it into the VM like this:
To integrate Luau into your CMake application projects as a library, at the minimum you'll need to depend on `Luau.Compiler` and `Luau.VM` projects. From there you need to create a new Luau state (using Lua 5.x API such as `lua_newstate`), compile source to bytecode and load it into the VM like this:
```cpp
// needs lua.h and luacode.h