nix/pkgs/heptapod-runner: fix

nix/pkgs/default.nix

@@ -64,5 +64,5 @@
   common-updater-scripts = pkgs.common-updater-scripts.override {
     nix = pkgs.nix_2_3;
   };
-} // (import ./heptapod-runner.nix args)
+} // (import ./heptapod-runner args)
   // (import ./lightspeed args)

nix/pkgs/heptapod-runner/default.nix

@@ -16,7 +16,7 @@ in
     inherit version;
     buildInputs = oldAttrs.buildInputs ++ [ pkgs.makeWrapper ];
     src = newSrc;
-    patches = [ "${depot.third_party.nixpkgs.path}/pkgs/development/tools/continuous-integration/gitlab-runner/fix-shell-path.patch" ];
+    patches = [ ./fix-shell-path.patch ];
   });
   heptapod-runner-mercurial = pkgs.symlinkJoin {
     name = pkgs.mercurial.name;

nix/pkgs/heptapod-runner/fix-shell-path.patch

@@ -0,0 +1,24 @@
+diff --git a/shells/bash.go b/shells/bash.go
+--- a/shells/bash.go
++++ b/shells/bash.go
+@@ -5,6 +5,7 @@ import (
+ 	"bytes"
+ 	"fmt"
+ 	"io"
++	"os/exec"
+ 	"path"
+ 	"runtime"
+ 	"strconv"
+@@ -249,7 +250,11 @@ func (b *BashShell) GetConfiguration(inf
+ 	if info.User != "" {
+ 		script.Command = "su"
+ 		if runtime.GOOS == "linux" {
+-			script.Arguments = append(script.Arguments, "-s", "/bin/"+b.Shell)
++			shellPath, err := exec.LookPath(b.Shell)
++			if err != nil {
++				shellPath = "/bin/" + b.Shell
++			}
++			script.Arguments = append(script.Arguments, "-s", shellPath)
+ 		}
+ 		script.Arguments = append(
+ 			script.Arguments,