Enhancements and Bug Fixes: Align Pre-login Behavior, TLS Error Ignorance, GUI Auto-Launch, and Documentation Improvements (#291)

crates/gpapi/src/clap/args.rs

@@ -0,0 +1,64 @@
+use clap::{builder::PossibleValue, ValueEnum};
+
+use crate::gp_params::ClientOs;
+
+#[derive(Debug, Clone)]
+pub enum Os {
+  Linux,
+  Windows,
+  Mac,
+}
+
+impl Os {
+  pub fn as_str(&self) -> &'static str {
+    match self {
+      Os::Linux => "Linux",
+      Os::Windows => "Windows",
+      Os::Mac => "Mac",
+    }
+  }
+}
+
+impl From<&str> for Os {
+  fn from(os: &str) -> Self {
+    match os.to_lowercase().as_str() {
+      "linux" => Os::Linux,
+      "windows" => Os::Windows,
+      "mac" => Os::Mac,
+      _ => Os::Linux,
+    }
+  }
+}
+
+impl From<&Os> for ClientOs {
+  fn from(value: &Os) -> Self {
+    match value {
+      Os::Linux => ClientOs::Linux,
+      Os::Windows => ClientOs::Windows,
+      Os::Mac => ClientOs::Mac,
+    }
+  }
+}
+
+impl ValueEnum for Os {
+  fn value_variants<'a>() -> &'a [Self] {
+    &[Os::Linux, Os::Windows, Os::Mac]
+  }
+
+  fn to_possible_value(&self) -> Option<clap::builder::PossibleValue> {
+    match self {
+      Os::Linux => Some(PossibleValue::new("Linux")),
+      Os::Windows => Some(PossibleValue::new("Windows")),
+      Os::Mac => Some(PossibleValue::new("Mac")),
+    }
+  }
+
+  fn from_str(input: &str, _: bool) -> Result<Self, String> {
+    match input.to_lowercase().as_str() {
+      "linux" => Ok(Os::Linux),
+      "windows" => Ok(Os::Windows),
+      "mac" => Ok(Os::Mac),
+      _ => Err(format!("Invalid OS: {}", input)),
+    }
+  }
+}