From a9cbc2857f4dd3af738b76edea00d692fbcee63c Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Tue, 10 May 2022 16:42:35 +0200
Subject: [PATCH] nix develop: Find bin/bash in the bashInteractive outputs

---
 src/nix/develop.cc | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/nix/develop.cc b/src/nix/develop.cc
index 1190b8348..3a99fff6f 100644
--- a/src/nix/develop.cc
+++ b/src/nix/develop.cc
@@ -512,9 +512,20 @@ struct CmdDevelop : Common, MixEnvironment
                 Strings{"legacyPackages." + settings.thisSystem.get() + "."},
                 nixpkgsLockFlags);
 
-            shell = store->printStorePath(
-                Installable::toStorePath(getEvalStore(), store, Realise::Outputs, OperateOn::Output, bashInstallable))
-                + "/bin/bash";
+            bool found = false;
+
+            for (auto & path : Installable::toStorePaths(getEvalStore(), store, Realise::Outputs, OperateOn::Output, {bashInstallable})) {
+                auto s = store->printStorePath(path) + "/bin/bash";
+                if (pathExists(s)) {
+                    shell = s;
+                    found = true;
+                    break;
+                }
+            }
+
+            if (!found)
+                throw Error("package 'nixpkgs#bashInteractive' does not provide a 'bin/bash'");
+
         } catch (Error &) {
             ignoreException();
         }