Add build and homebrew formula

Author: jharrilim

.gitignore

@@ -1 +1,2 @@
 /target
+*.tar.gz

Cargo.lock

@@ -1,9 +1,15 @@
 [package]
 name = "git-b"
-version = "0.1.0"
+version = "1.0.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 skim = "0.9.4"
+
+[profile.release]
+lto = true
+codegen-units = 1
+opt-level = "z"
+strip = true

Cargo.toml

@@ -0,0 +1,29 @@
+
+VERSION = '1.0.0'
+X86_64_SHA = '7c84096e7578411f9226e75a96df79c134eca2c8eddd7b452b609263cc6e243e'
+AARCH64_SHA = '191748a0e2f0d582d1f7c9c054b2a7a90daeb923ac9806df8e42d692b637adfa'
+
+
+class GitB < Formula
+  desc "Git B"
+  homepage "https://github.com/jharrilim/git-b"
+  version VERSION
+
+  on_macos do
+    if Hardware::CPU.intel?
+      url "https://github.com/jharrilim/git-b/releases/download/v#{VERSION}/git-b-v#{VERSION}-x86_64-apple-darwin.tar.gz"
+      sha256 X86_64_SHA
+    else
+      url "https://github.com/jharrilim/git-b/releases/download/v#{VERSION}/git-b-v#{VERSION}-aarch64-apple-darwin.tar.gz"
+      sha256 AARCH64_SHA
+    end
+  end
+
+  def install
+    bin.install "git-b"
+  end
+
+  test do
+    system bin / "git-b", "--version"
+  end
+end

Formula/git_b.rb

@@ -1,3 +1,20 @@
 # git b
 
 Fuzzy selector for git branches
+
+## Install (Mac)
+
+```sh
+brew tap jharrilim/git-b/git-b
+brew install git-b
+```
+
+## Compiling from Mac to Linux
+
+Due to [rust/issues/34282](https://github.com/rust-lang/rust/issues/34282), you'll need to run this
+before running the `build` script:
+
+```sh
+brew tap SergioBenitez/osxct
+brew install x86_64-unknown-linux-gnu
+```

README.md

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+set -e
+
+name="git-b"
+version="$1"
+
+mac_intel="x86_64-apple-darwin"
+mac_silicon="aarch64-apple-darwin"
+linux_intel="x86_64-unknown-linux-gnu"
+
+mac_intel_tar="$name-$version-$mac_intel.tar.gz"
+mac_silicon_tar="$name-v$version-$mac_silicon.tar.gz"
+linux_intel_tar="$name-v$version-$linux_intel.tar.gz"
+
+cargo build --target=$mac_intel --release
+cargo build --target=$mac_silicon --release
+CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER=x86_64-unknown-linux-gnu-gcc cargo build --target=$linux_intel --release
+
+cd target/$mac_silicon/release
+tar -czvf "$mac_silicon_tar" $name
+silicon_sha=$(shasum -a 256 "$mac_silicon_tar" | cut -d ' ' -f 1)
+mv "$mac_silicon_tar" ../../../"$mac_silicon_tar"
+
+cd ../../$mac_intel/release
+tar -czvf "$mac_intel_tar" $name
+intel_sha=$(shasum -a 256 "$mac_intel_tar" | cut -d ' ' -f 1)
+mv "$mac_intel_tar" ../../../"$mac_intel_tar"
+
+cd ../../$linux_intel/release
+tar -czvf "$linux_intel_tar" $name
+mv "$linux_intel_tar" ../../../"$linux_intel_tar"
+
+cd ../../../
+
+sed -i '' -e "s|X86_64_SHA\ \=.*|X86_64_SHA = '$intel_sha'|" Formula/git_b.rb
+sed -i '' -e "s|AARCH64_SHA\ \=.*|AARCH64_SHA = '$silicon_sha'|" Formula/git_b.rb
+sed -i '' -e "s|VERSION\ \=.*|VERSION = '$version'|" Formula/git_b.rb

build

@@ -2,6 +2,11 @@ use skim::prelude::*;
 use std::{io::BufReader, process::Command};
 
 fn main() {
+    if std::env::args().any(|arg| arg == "--version") {
+        println!("git-b {}", env!("CARGO_PKG_VERSION"));
+        return;
+    }
+
     let branches = branch_names().join("\n");
     let b = Box::leak(branches.into_boxed_str());
     let reader = BufReader::new(b.as_bytes());