Felix Uhl 3fefc2b284 Fix derivation load assertion errors ... When loading a derivation from a JSON, malformed input would trigger cryptic "assertion failed" errors. Simply replacing calls to `operator []` with calls to `.at()` was not enough, as this would cause json.execptions to be printed verbatim. Display nice error messages instead and give some indication where the error happened. *Before:* ``` $ echo 4 | nix derivation add error: [json.exception.type_error.305] cannot use operator[] with a string argument with number $ nix derivation show nixpkgs#hello | nix derivation add Assertion failed: (it != m_value.object->end()), function operator[], file /nix/store/8h9pxgq1776ns6qi5arx08ifgnhmgl22-nlohmann_json-3.11.2/include/nlohmann/json.hpp, line 2135. $ nix derivation show nixpkgs#hello | jq '.[] | .name = 5' | nix derivation add error: [json.exception.type_error.302] type must be string, but is object $ nix derivation show nixpkgs#hello | jq '.[] | .outputs = { out: "/nix/store/8j3f8j-hello" }' | nix derivation add error: [json.exception.type_error.302] type must be object, but is string ``` *After:* ``` $ echo 4 | nix derivation add error: Expected JSON of derivation to be of type 'object', but it is of type 'number' $ nix derivation show nixpkgs#hello | nix derivation add error: Expected JSON object to contain key 'name' but it doesn't $ nix derivation show nixpkgs#hello | jq '.[] | .name = 5' | nix derivation add error: Expected JSON value to be of type 'string' but it is of type 'number' $ nix derivation show nixpkgs#hello | jq '.[] | .outputs = { out: "/nix/store/8j3f8j-hello" }' | nix derivation add error: … while reading key 'outputs' error: Expected JSON value to be of type 'object' but it is of type 'string' ```		2023-08-05 01:34:30 +02:00
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internal-api	Generate API docs with Doxygen	2023-03-10 12:51:06 -05:00
manual	Fix derivation load assertion errors	2023-08-05 01:34:30 +02:00