Add subcommands for managing directories

tools/yabridgectl/Cargo.toml

@@ -5,7 +5,7 @@ name = "yabridgectl"
 version = "1.2.1"
 authors = ["Robbert van der Helm <mail@robbertvanderhelm.nl>"]
 edition = "2018"
-description = "Optional command line helper to set up yabridge"
+description = "Optional utility to help set up yabridge"
 repository = "https://github.com/robbert-vdh/yabridge"
 license = "GPL-3.0-or-later"
 

tools/yabridgectl/src/config.rs

@@ -75,7 +75,7 @@ impl Config {
                 })?;
 
                 Ok(toml::from_str(&toml_str)
-                    .map_err(|err| format!("Could not parse TOML: {:#?}", err))?)
+                    .map_err(|err| format!("Could not parse TOML: {}", err))?)
             }
             None => {
                 let defaults = Config {

tools/yabridgectl/src/main.rs

@@ -14,24 +14,69 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
+use clap::{app_from_crate, App, Arg};
+use config::Config;
+use std::path::Path;
+
 mod config;
 mod files;
 
-use config::Config;
+// TODO: Naming and descriptions could be made clearer
 
 fn main() {
-    // TODO: Remove debug
-    match Config::read() {
-        Ok(config) => {
-            println!("Read config:\n\n{:#?}\n", config);
-            println!(
-                "Searching for libyabridge.toml:\n\n{:?}",
-                config.libyabridge()
-            );
-        }
+    let config = match Config::read() {
+        Ok(config) => config,
         Err(err) => {
             eprintln!("Error while reading config:\n\n{}", err);
             std::process::exit(1);
         }
+    };
+
+    // Used for validation in `yabridgectl rm <path>`
+    let plugin_directories: Vec<&str> = config
+        .plugin_dirs
+        .iter()
+        .map(|path| path.to_str().expect("Path contains invalid unicode"))
+        .collect();
+
+    let matches = app_from_crate!()
+        .subcommand(
+            App::new("add").about("Add a plugin install location").arg(
+                Arg::with_name("path")
+                    .about("Path to a directory containing Windows VST plugins")
+                    .validator(validate_path)
+                    .takes_value(true)
+                    .required(true),
+            ),
+        )
+        .subcommand(
+            App::new("rm")
+                .about("Remove a plugin install location")
+                .arg(
+                    Arg::with_name("path")
+                        .about("Path to a directory")
+                        .possible_values(&plugin_directories)
+                        .takes_value(true)
+                        .required(true),
+                ),
+        )
+        .subcommand(App::new("list").about("List the plugin directories"))
+        .get_matches();
+
+    // TODO: Modify the config file using these options
+    unimplemented!();
+}
+
+/// Verify that a path exists, used for validating arguments.
+fn validate_path(path: &str) -> Result<(), String> {
+    let path = Path::new(path);
+
+    if path.exists() {
+        Ok(())
+    } else {
+        Err(format!(
+            "File or directory '{}' could not be found",
+            path.display()
+        ))
     }
 }