Start: Arg parsing structures

Fortune for transfer's current commit: Small curse − 小凶

src/args.rs

@@ -42,7 +42,8 @@ impl fmt::Display for Usage
 	splash(f)?;
 	
 	writeln!(f, "Usage: {} --send <bind> [SEND OPTIONS] <file...>", program_name())?;
-	writeln!(f, "Usage: {} --recv <endpoint> [RECV OPTIONS] <output...>", program_name())?;
+	writeln!(f, "Usage: {} --recv <connect> [RECV OPTIONS] <output...>", program_name())?;
+	writeln!(f, "Usage: {} --help", program_name())?;
 	writeln!(f, "\nSEND OPTIONS:")?;
 	writeln!(f, " -e\t\t\tEncrypt file(s)")?;
 	writeln!(f, " -c\t\t\tCompress files")?;
@@ -58,3 +59,23 @@ impl fmt::Display for Usage
 	Ok(())
     }
 }
+
+/// The process parsed from command line
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct Process
+{
+    /// The parsed config (includes mode)
+    pub config: config::Config,
+    /// The listed paths
+    pub paths: Vec<String>,
+    /// Use stdin/out
+    pub stdio: bool,
+}
+
+/// An operation parsed from command line arguments
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum Op
+{
+    Process(Box<Process>),
+    Help,
+}

src/enc.rs

@@ -20,8 +20,11 @@ use serde::{
 pub enum CompressionKind
 {
     Brotli,
+    
+    //TODO: Add cases (and async_compression features) for these three
     Xz,
     GZip,
+    Bz2,
 }
 
 impl Default for CompressionKind
@@ -29,6 +32,7 @@ impl Default for CompressionKind
     #[inline]
     fn default() -> Self
     {
+	//TODO: Should Brotli be default? Check sizes of compressed binary encoded stuffs and compare modes.
 	Self::Brotli
     }
 }