writeTextFile: chmod before checkPhase

Set the executable bit before running the check phase, so that the check
phase can run the script to test its behaviour.

This aligns with what `concatTextFile` is doing.

Also use explicit `if` statements so that we don't silently ignore
`chmod` failures.

1 files changed, 1 insertions, 0 deletions

diff --git a/pkgs/test/default.nix b/pkgs/test/default.nix
index 5d154d1630b63..bc810790a3dd5 100644
--- a/pkgs/test/default.nix
+++ b/pkgs/test/default.nix
@@ -70,6 +70,7 @@ with pkgs;
   trivial-builders = recurseIntoAttrs {
     writeStringReferencesToFile = callPackage ../build-support/trivial-builders/test/writeStringReferencesToFile.nix {};
     writeTextFile = callPackage ../build-support/trivial-builders/test/write-text-file.nix {};
+    writeShellScript = callPackage ../build-support/trivial-builders/test/write-shell-script.nix {};
     references = callPackage ../build-support/trivial-builders/test/references.nix {};
     overriding = callPackage ../build-support/trivial-builders/test-overriding.nix {};
     concat = callPackage ../build-support/trivial-builders/test/concat-test.nix {};