Allow compiling to standalone binary via bakeware

This introduces a simple way of compiling Farside to a somewhat portable,
standalone binary. The resulting binary isn't completely portable since it
depends on the C runtime of the host system. As a result, it's advised to use
systems with older library versions when compiling for true portability.

Closes #50

Co-authored-by: Jason Clark <mithereal@gmail.com>

README.md

@@ -18,6 +18,17 @@
 
 </div>
 
+Contents
+1. [About](#about)
+2. [Demo](#demo)
+3. [How It Works](#how-it-works)
+4. [Cloudflare](#regarding-cloudflare)
+5. [Development](#development)
+    1. [Compiling](#compiling)
+    1. [Environment Variables](#environment-variables)
+
+## About
+
 A redirecting service for FOSS alternative frontends.
 
 [Farside](https://farside.link) provides links that automatically redirect to
@@ -178,11 +189,29 @@ goes against what Farside is trying to solve. Use at your own discretion.
 ## Development
 - Install [elixir](https://elixir-lang.org/install.html)
 - (on Debian systems) Install [erlang-dev](https://packages.debian.org/sid/erlang-dev)
+
+To run Farside without compiling, you can perform the following steps:
+
 - Install dependencies: `mix deps.get`
 - Initialize db contents: `mix run -e Farside.Instances.sync`
 - Run Farside: `mix run --no-halt`
   - Uses localhost:4001
 
+### Compiling
+
+You can create a standalone Farside app using the steps below. In the example, the
+Farside executable is copied to `/usr/local/bin`, but can be moved to any preferred
+destination. Note that the executable still depends on the C runtime of the machine
+it is built on, so if you want a more portable binary, you should build Farside on a
+system with older library versions.
+
+```
+MIX_ENV=cli && mix deps.get && mix release
+cp _build/cli/rel/bakeware/farside /usr/local/bin
+sudo chmod +x /usr/local/bin/farside
+farside
+```
+
 ### Environment Variables
 
 <table>

mix.exs

@@ -1,16 +1,31 @@
 defmodule Farside.MixProject do
   use Mix.Project
 
+  @source_url "https://github.com/benbusby/farside.git"
+  @version "0.1.1"
+  @app :farside
+
   def project do
     [
-      app: :farside,
+      app: @app,
-      version: "0.1.0",
+      version: @version,
+      name: "farside",
       elixir: "~> 1.8",
-      start_permanent: Mix.env() == :prod,
+      source_url: @source_url,
-      deps: deps()
+      start_permanent: Mix.env() == :prod || Mix.env() == :cli,
+      deps: deps(),
+      aliases: aliases(),
+      description: description(),
+      package: package(),
+      releases: [{@app, release()}],
+      preferred_cli_env: [release: :cli]
     ]
   end
 
+  defp aliases do
+    []
+  end
+
   # Run "mix help compile.app" to learn about applications.
   def application do
     [
@@ -27,7 +42,32 @@ defmodule Farside.MixProject do
       {:plug_attack, "~> 0.4.2"},
       {:plug_cowboy, "~> 2.0"},
       {:quantum, "~> 3.0"},
-      {:cubdb, "~> 2.0.1"}
+      {:cubdb, "~> 2.0.1"},
+      {:bakeware, "~> 0.2.4"}
+    ]
+  end
+
+  defp description() do
+    "A redirecting service for FOSS alternative frontends."
+  end
+
+  defp package() do
+    [
+      name: "farside",
+      files: ["lib", "mix.exs", "README*"],
+      maintainers: ["Ben Busby"],
+      licenses: ["MIT"],
+      links: %{"GitHub" => "https://github.com/benbusby/farside"}
+    ]
+  end
+
+  defp release() do
+    [
+      overwrite: true,
+      cookie: "#{@app}_cookie",
+      quiet: true,
+      steps: [:assemble, &Bakeware.assemble/1],
+      strip_beams: Mix.env() == :cli
     ]
   end
 end

mix.lock

@@ -1,10 +1,12 @@
 %{
+  "bakeware": {:hex, :bakeware, "0.2.4", "0aaf49b34f4bab2aa433f9ff1485d9401e421603160abd6d269c469fc7b65212", [:make, :mix], [{:elixir_make, "~> 0.6", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "7b97bcf6fbeee53bb32441d6c495bf478d26f9575633cfef6831e421e86ada6d"},
   "certifi": {:hex, :certifi, "2.9.0", "6f2a475689dd47f19fb74334859d460a2dc4e3252a3324bd2111b8f0429e7e21", [:rebar3], [], "hexpm", "266da46bdb06d6c6d35fde799bcb28d36d985d424ad7c08b5bb48f5b5cdd4641"},
   "cowboy": {:hex, :cowboy, "2.9.0", "865dd8b6607e14cf03282e10e934023a1bd8be6f6bacf921a7e2a96d800cd452", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "1.8.0", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "2c729f934b4e1aa149aff882f57c6372c15399a20d54f65c8d67bef583021bde"},
   "cowboy_telemetry": {:hex, :cowboy_telemetry, "0.4.0", "f239f68b588efa7707abce16a84d0d2acf3a0f50571f8bb7f56a15865aae820c", [:rebar3], [{:cowboy, "~> 2.7", [hex: :cowboy, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "7d98bac1ee4565d31b62d59f8823dfd8356a169e7fcbb83831b8a5397404c9de"},
   "cowlib": {:hex, :cowlib, "2.11.0", "0b9ff9c346629256c42ebe1eeb769a83c6cb771a6ee5960bd110ab0b9b872063", [:make, :rebar3], [], "hexpm", "2b3e9da0b21c4565751a6d4901c20d1b4cc25cbb7fd50d91d2ab6dd287bc86a9"},
   "crontab": {:hex, :crontab, "1.1.11", "4028ced51b813a5061f85b689d4391ef0c27550c8ab09aaf139e4295c3d93ea4", [:mix], [{:ecto, "~> 1.0 or ~> 2.0 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}], "hexpm", "ecb045f9ac14a3e2990e54368f70cdb6e2f2abafc5bc329d6c31f0c74b653787"},
   "cubdb": {:hex, :cubdb, "2.0.1", "24cab8fb4128df704c52ed641f5ed70af352f7a3a80cebbb44c3bbadc3fd5f45", [:mix], [], "hexpm", "57cf25aebfc34f4580d9075da06882b4fe3e0739f5353d4dcc213e9cc1b10cdf"},
+  "elixir_make": {:hex, :elixir_make, "0.7.6", "67716309dc5d43e16b5abbd00c01b8df6a0c2ab54a8f595468035a50189f9169", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}], "hexpm", "5a0569756b0f7873a77687800c164cca6dfc03a09418e6fcf853d78991f49940"},
   "gen_stage": {:hex, :gen_stage, "1.1.2", "b1656cd4ba431ed02c5656fe10cb5423820847113a07218da68eae5d6a260c23", [:mix], [], "hexpm", "9e39af23140f704e2b07a3e29d8f05fd21c2aaf4088ff43cb82be4b9e3148d02"},
   "hackney": {:hex, :hackney, "1.18.1", "f48bf88f521f2a229fc7bae88cf4f85adc9cd9bcf23b5dc8eb6a1788c662c4f6", [:rebar3], [{:certifi, "~>2.9.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "a4ecdaff44297e9b5894ae499e9a070ea1888c84afdd1fd9b7b2bc384950128e"},
   "httpoison": {:hex, :httpoison, "1.8.2", "9eb9c63ae289296a544842ef816a85d881d4a31f518a0fec089aaa744beae290", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "2bb350d26972e30c96e2ca74a1aaf8293d61d0742ff17f01e0279fef11599921"},