From 1bf598874faf12791607cfa25d1067d35dc6ca32 Mon Sep 17 00:00:00 2001
From: Dylan Baker <dylan@pnwbakers.com>
Date: Tue, 22 Dec 2020 16:45:06 -0800
Subject: [PATCH] meson: install shell completions

meson ships with both bash and zsh completions, the zsh completions are
more complete than the bash ones.
---
 pkgs/development/tools/build-managers/meson/default.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/development/tools/build-managers/meson/default.nix b/pkgs/development/tools/build-managers/meson/default.nix
index cd506b970f6..890c457da05 100644
--- a/pkgs/development/tools/build-managers/meson/default.nix
+++ b/pkgs/development/tools/build-managers/meson/default.nix
@@ -4,6 +4,7 @@
 , writeTextDir
 , substituteAll
 , fetchpatch
+, installShellFiles
 }:
 
 python3.pkgs.buildPythonApplication rec {
@@ -77,6 +78,13 @@ python3.pkgs.buildPythonApplication rec {
     rm $out/nix-support/propagated-build-inputs
   '';
 
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = ''
+    installShellCompletion --zsh data/shell-completions/zsh/_meson
+    installShellCompletion --bash data/shell-completions/bash/meson
+  '';
+
   meta = with lib; {
     homepage = "https://mesonbuild.com";
     description = "SCons-like build system that use python as a front-end language and Ninja as a building backend";