From 511dcc29a2e0fb39dc413f8c7cfab8d28a93afab Mon Sep 17 00:00:00 2001
From: pacien
Date: Sun, 13 Nov 2022 19:55:56 +0100
Subject: mkDevShell: split env var setting and printing helpers

---
 lib/mk-dev-shell.nix | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

(limited to 'lib')

diff --git a/lib/mk-dev-shell.nix b/lib/mk-dev-shell.nix
index e6e916a..0e2a265 100644
--- a/lib/mk-dev-shell.nix
+++ b/lib/mk-dev-shell.nix
@@ -9,17 +9,26 @@ with pkgs.lib;
 let
   exportEnvVar = k: v: ''
     export ${escapeShellArg k}="${v}"
+  '';
+
+  exportEnvVarsHook = envVars: ''
+    ${pkgs.lib.concatStringsSep "\n" (
+      pkgs.lib.mapAttrsToList exportEnvVar envVars
+    )}
+  '';
+
+  printEnvVar = k: v: ''
     echo ${escapeShellArg k}=${escapeShellArg v}
   '';
 
-  envVarsHook = envVars: ''
+  printEnvVarsHook = envVars: ''
     echo -e "\nDEVSHELL ENVIRONMENT VARIABLES:"
     ${pkgs.lib.concatStringsSep "\n" (
-      pkgs.lib.mapAttrsToList exportEnvVar envVars
+      pkgs.lib.mapAttrsToList printEnvVar envVars
     )}
   '';
 
-  listToolsHook = tools: ''
+  printToolsHook = tools: ''
     echo -e "\nDEVSHELL COMMANDS:"
     ls "${pkgs.symlinkJoin { name = "env"; paths = tools; }}/bin"
   '';
@@ -33,8 +42,11 @@ let
 in pkgs.mkShell {
   packages = tools;
   shellHook = ''
-    ${optionalString (envVars != {}) (envVarsHook envVars)}
-    ${optionalString (tools != []) (listToolsHook tools)}
+    ${exportEnvVarsHook envVars}
+
+    ${optionalString (envVars != {}) (printEnvVarsHook envVars)}
+    ${optionalString (tools != []) (printToolsHook tools)}
+
     ${if (shell != null) then shell else startUserShellHook}
     exit $?
   '';
-- 
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