Using HIMALAYA_CONFIG as a way to provide himalaya configuration file from environment.

Cargo.toml

@@ -48,7 +48,7 @@ pgp-native = ["email-lib/pgp-native", "mml-lib/pgp-native", "pgp"]
 [dependencies]
 ariadne = "0.2"
 async-trait = "0.1"
-clap = { version = "4.4", features = ["derive", "wrap_help"] }
+clap = { version = "4.4", features = ["derive", "wrap_help", "env"] }
 clap_complete = "4.4"
 clap_mangen = "0.2"
 color-eyre = "0.6.3"

src/cli.rs

@@ -33,7 +33,7 @@ pub struct Cli {
     /// configuration file. Other paths are merged with the first one,
     /// which allows you to separate your public config from your
     /// private(s) one(s).
-    #[arg(short, long = "config", global = true)]
+    #[arg(short, long = "config", global = true, env = "HIMALAYA_CONFIG")]
     #[arg(value_name = "PATH", value_parser = config::path_parser)]
     pub config_paths: Vec<PathBuf>,