switched to custom zero-dependency logger implementation

crates/pacdef/Cargo.toml

@@ -20,9 +20,7 @@ termios = "0.3"
 walkdir = "2.5"
 libc = "0.2"
 enum_dispatch = "0.3"
-log = "0.4"
-pretty_env_logger = "0.5"
-env_logger = "0.11"
+log = { version = "0.4", features = ["std"] }
 
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"

crates/pacdef/src/main.rs

@@ -31,10 +31,26 @@ Check out https://github.com/steven-omaha/pacdef/blob/main/README.md#configurati
 This message will not appear again.
 ------";
 
+struct PacdefLogger;
+
+impl log::Log for PacdefLogger {
+    fn enabled(&self, _: &log::Metadata) -> bool {
+        true
+    }
+
+    fn log(&self, record: &log::Record) {
+        if self.enabled(record.metadata()) {
+            eprintln!("{} - {}", record.level(), record.args());
+        }
+    }
+
+    fn flush(&self) {}
+}
+
 fn main() -> ExitCode {
-    pretty_env_logger::formatted_builder()
-        .filter_level(log::LevelFilter::Info)
-        .init();
+    log::set_boxed_logger(Box::new(PacdefLogger))
+        .map(|()| log::set_max_level(log::LevelFilter::Info))
+        .expect("no other loggers should have been set");
 
     handle_final_result(main_inner())
 }