From 9e7e927837f205fbd00769a47f39e5946ea931b7 Mon Sep 17 00:00:00 2001 From: Rebecca Turner Date: Sat, 9 Mar 2024 18:28:04 -0800 Subject: Print top-level errors normally in `nix repl` MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Previously, errors while printing values in `nix repl` would be printed in `«error: ...»` brackets rather than displayed normally: ``` nix-repl> legacyPackages.aarch64-darwin.pythonPackages.APScheduler «error: Package ‘python-2.7.18.7’ in /nix/store/6s0m1qc31zw3l3kq0q4wd5cp3lqpkq0q-source/pkgs/development/interpreters/python/cpython/2.7/default.nix:335 is marked as insecure, refusing to evaluate.» ``` Now, errors will be displayed normally if they're emitted at the top-level of an expression: ``` nix-repl> legacyPackages.aarch64-darwin.pythonPackages.APScheduler error: … in the condition of the assert statement at /nix/store/6s0m1qc31zw3l3kq0q4wd5cp3lqpkq0q-source/lib/customisation.nix:268:17: 267| in commonAttrs // { 268| drvPath = assert condition; drv.drvPath; | ^ 269| outPath = assert condition; drv.outPath; … in the left operand of the OR (||) operator at /nix/store/6s0m1qc31zw3l3kq0q4wd5cp3lqpkq0q-source/pkgs/development/interpreters/python/passthrufun.nix:28:45: 27| if lib.isDerivation value then 28| lib.extendDerivation (valid value || throw "${name} should use `buildPythonPackage` or `toPythonModule` if it is to be part of the Python packages set.") {} value | ^ 29| else (stack trace truncated; use '--show-trace' to show the full trace) error: Package ‘python-2.7.18.7’ in /nix/store/6s0m1qc31zw3l3kq0q4wd5cp3lqpkq0q-source/pkgs/development/interpreters/python/cpython/2.7/default.nix:335 is marked as insecure, refusing to evaluate. ``` Errors emitted in nested structures (like e.g. when printing `nixpkgs`) will still be printed in brackets. Change-Id: I25aeddf08c017582718cb9772a677bf51b9fc2ad --- src/libcmd/repl.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src/libcmd') diff --git a/src/libcmd/repl.cc b/src/libcmd/repl.cc index 4aa46dbc0..9811ea30c 100644 --- a/src/libcmd/repl.cc +++ b/src/libcmd/repl.cc @@ -167,7 +167,8 @@ struct NixRepl .force = true, .derivationPaths = true, .maxDepth = maxDepth, - .prettyIndent = 2 + .prettyIndent = 2, + .errors = ErrorPrintBehavior::ThrowTopLevel, }); } }; -- cgit v1.2.3