From 8a06f7a8d0984b0f82aa2fe3746c96fccca715e7 Mon Sep 17 00:00:00 2001
From: awwpotato <awwpotato@voidq.com>
Date: Wed, 16 Apr 2025 18:19:39 -0700
Subject: [PATCH] starship: emulate shell completions

see
https://nixos.org/manual/nixpkgs/unstable/#installshellfiles-installshellcompletion
---
 pkgs/tools/misc/starship/default.nix | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/pkgs/tools/misc/starship/default.nix b/pkgs/tools/misc/starship/default.nix
index 152b51df10c1..dc1affff975b 100644
--- a/pkgs/tools/misc/starship/default.nix
+++ b/pkgs/tools/misc/starship/default.nix
@@ -10,6 +10,7 @@
   Security,
   Foundation,
   Cocoa,
+  buildPackages,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
@@ -50,12 +51,17 @@ rustPlatform.buildRustPackage (finalAttrs: {
       mkdir -p $presetdir
       cp docs/public/presets/toml/*.toml $presetdir
     ''
-    + lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
-      installShellCompletion --cmd starship \
-        --bash <($out/bin/starship completions bash) \
-        --fish <($out/bin/starship completions fish) \
-        --zsh <($out/bin/starship completions zsh)
-    '';
+    + lib.optionalString (stdenv.hostPlatform.emulatorAvailable buildPackages) (
+      let
+        emulator = stdenv.hostPlatform.emulator buildPackages;
+      in
+      ''
+        installShellCompletion --cmd starship \
+          --bash <(${emulator} $out/bin/starship completions bash) \
+          --fish <(${emulator} $out/bin/starship completions fish) \
+          --zsh <(${emulator} $out/bin/starship completions zsh)
+      ''
+    );
 
   useFetchCargoVendor = true;
   cargoHash = "sha256-B2CCrSH2aTcGEX96oBxl/27hNMdDpdd2vxdt0/nlN6I=";