Util.Env (fnord v0.9.29)

Utilities for interpreting environment variables used in fnord.

Provide canonical parsing helpers so different runtime contexts treat environment values consistently (escript, mix run, CI, etc.).

Summary

delete_env(var)

Delete the environment variable.

fetch_env(var)

Return true when the provided environment value is considered truthy.

Set the environment variable to the given value.

@spec cursor_rules_debug_enabled?() :: boolean()

@spec delete_env(binary()) :: :ok

Delete the environment variable.

@spec fetch_env(binary()) :: {:ok, binary()} | {:error, :not_set}

@spec get_env(binary(), any()) :: any()

@spec looks_truthy?(binary()) :: boolean()

Return true when the provided environment value is considered truthy.

Recognizes the common truthy values (case-insensitive): "1", "true", and "yes". Returns false for nil, empty strings, and other values.

@spec mcp_debug_enabled?() :: boolean()

@spec put_env(binary(), binary()) :: :ok

Set the environment variable to the given value.