From c880a52c7f58e1a4b8818fafa50fc2e3bd78b102 Mon Sep 17 00:00:00 2001
From: Jameel Al-Aziz <me@jalaziz.io>
Date: Tue, 11 Oct 2022 17:18:52 -0700
Subject: [PATCH] feat: Generate shell completions on install

Homebrew can automatically generate and install completions for bash,
zsh, and fish. For now, completion is limited to bash and zsh until
graphite adds fish support.

This simplifies the installation steps for homebrew users.
---
 Formula/graphite.rb           | 14 ++++++++++----
 formula-templates/graphite.rb | 14 ++++++++++----
 2 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/Formula/graphite.rb b/Formula/graphite.rb
index fbcd8df..7d78764 100644
--- a/Formula/graphite.rb
+++ b/Formula/graphite.rb
@@ -6,17 +6,23 @@ class Graphite < Formula
   if OS.mac?
     url "https://github.com/withgraphite/homebrew-tap/releases/download/v0.21.0/gt-macos"
     sha256 "b498330dbfea3810ec0822d4d106f69fe8182c9a0eefbb8b9b794500c22cc573"
-    def install
-      bin.install "gt-macos" => "gt"
-    end
   end
 
   if OS.linux?
     url "https://github.com/withgraphite/homebrew-tap/releases/download/v0.21.0/gt-linux"
     sha256 "ea22d355da93c59300ee83ac9ef58d63126c41a80d9a39076a5de9420ae789d9"
-    def install
+  end
+
+  def install
+    if OS.mac?
+      bin.install "gt-macos" => "gt"
+    elsif OS.linux?
       bin.install "gt-linux" => "gt"
     end
+
+    chmod 0555, bin/"gt"
+    generate_completions_from_executable(bin/"gt", "completion", shells:                 [:bash, :zsh, :fish],
+                                                                 shell_parameter_format: :none)
   end
 
   # TODO
diff --git a/formula-templates/graphite.rb b/formula-templates/graphite.rb
index cb01112..cc55fc4 100644
--- a/formula-templates/graphite.rb
+++ b/formula-templates/graphite.rb
@@ -6,17 +6,23 @@ class Graphite < Formula
   if OS.mac?
     url "{{urlMac}}"
     sha256 "{{shasumMac}}"
-    def install
-      bin.install "gt-macos" => "gt"
-    end
   end
 
   if OS.linux?
     url "{{urlLinux}}"
     sha256 "{{shasumLinux}}"
-    def install
+  end
+
+  def install
+    if OS.mac?
+      bin.install "gt-macos" => "gt"
+    elsif OS.linux?
       bin.install "gt-linux" => "gt"
     end
+
+    chmod 0555, bin/"gt"
+    generate_completions_from_executable(bin/"gt", "completion", shells:                 [:bash, :zsh, :fish],
+                                                                 shell_parameter_format: :none)
   end
 
   # TODO