Refactor cli

src/main.rs

@@ -1,34 +1,57 @@
-use clap::Parser;
+use clap::builder::Str;
+use clap::{Parser, Subcommand, ValueEnum};
 use std::env;
 use std::path::PathBuf;
 
-const SERVERS_ENV_VAR: &str = "PLUGIN_UPLOADER_SERVERS";
+const SERVERS_ENV_VAR: &str = "MSSH_SERVERS";
 
-//TODO add upload and command subcommands
-
-/// Uploads a plugin to one or multiple configured servers.
+/// Uploads a file or executes a command on multiple configured servers
 ///
-/// By default, older versions of the plugin will be deleted.
+/// Servers must either be configured via environment variable or denote their server directory with
+/// a double colon: crea:home/crea.
 ///
-/// --- Server configuration ---
+/// --- Configuration via environment variable ---
 ///
-/// Servers can be configured via environment variable `PLUGIN_UPLOADER_SERVERS`.
-/// The value should be a string which contains the ssh name and the server directory path.
-///
-/// --- Example ---
-///
-/// export PLUGIN_UPLOADER_SERVERS="crea:server/creative2,city:city2,lobby:"
+/// Use MSSH_SERVERS="crea:home/crea,sky:sky,lobby:,city:city2" to configure servers.
 #[derive(Parser, Debug)]
 #[command(version, about, long_about)]
 struct Args {
-  /// The plugin file to upload
-  plugin: PathBuf,
-  /// The ssh names of the servers to upload to
+  /// The action to perform
+  #[command(subcommand)]
+  command: Command,
+  /// The ssh names and optionally home directories of the servers to perform the action on
   #[arg(num_args = 1..)]
-  servers: Vec<String>,
-  /// Whether not to delete, but to rename the previous plugin
-  #[arg(short, long, value_name = "archive", default_value = "false", default_missing_values = ["true"])]
-  archive_old_versions: bool,
+  servers: Vec<String>, //TODO directly parse servers and their directories
+}
+
+#[derive(Subcommand, Debug)]
+enum Command {
+  /// Upload a file to the servers
+  #[command(visible_short_flag_alias = 'u')]
+  Upload {
+    /// The file to upload
+    file: PathBuf,
+    /// How to handle older versions of the file
+    #[arg(short = 'a', long, default_value = "delete", default_missing_value = "archive", num_args = 0..1)]
+    old_version_policy: OldVersionPolicy,
+  },
+  /// Execute a command on the servers
+  #[command(visible_short_flag_alias = 'c')]
+  Command {
+    /// The command to execute
+    command: String,
+  },
+}
+
+#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, Default, ValueEnum)]
+enum OldVersionPolicy {
+  /// Ignore the existence of older versions
+  Ignore,
+  /// Rename older versions: foo.jar -> foo.jarr
+  Archive,
+  /// Delete older versions
+  #[default]
+  Delete,
 }
 
 #[derive(Debug, Clone, Eq, PartialEq, Hash)]
@@ -49,7 +72,7 @@ fn main() -> Result<(), String> {
 
   let configured_servers = parse_server_configuration_from_env()?;
   dbg!(&configured_servers);
-  
+
   let servers = args
     .servers
     .iter()
@@ -57,16 +80,12 @@ fn main() -> Result<(), String> {
       configured_servers
         .iter()
         .find(|server| server.ssh_name == *server_name)
-        .ok_or(format!("no server with the name '{server_name}' has been configured"))
+        .ok_or(format!(
+          "no server with the name '{server_name}' has been configured"
+        ))
     })
     .collect::<Result<Vec<_>, _>>()?;
 
-  if !args.plugin.is_file() {
-    return Err("plugin is not a file".to_string())
-  }
-  
-  //args.plugin.canonicalize()
-
   Ok(())
 }
 
@@ -93,13 +112,20 @@ mod test {
 
   #[test]
   fn test_parse_server_configuration() {
-    let servers = parse_server_configuration("foo:bar,fizz:buzz/bizz").expect("valid server configuration");
-    assert_eq!(vec![Server {
-      ssh_name: "foo".to_string(),
-      server_directory_path: PathBuf::from("bar"),
-    }, Server {
-      ssh_name: "fizz".to_string(),
-      server_directory_path: PathBuf::from("buzz/bizz"),
-    }], servers);
+    let servers =
+      parse_server_configuration("foo:bar,fizz:buzz/bizz").expect("valid server configuration");
+    assert_eq!(
+      vec![
+        Server {
+          ssh_name: "foo".to_string(),
+          server_directory_path: PathBuf::from("bar"),
+        },
+        Server {
+          ssh_name: "fizz".to_string(),
+          server_directory_path: PathBuf::from("buzz/bizz"),
+        }
+      ],
+      servers
+    );
   }
 }