implement midi autoconnect for arranger

Justfile

@@ -31,9 +31,31 @@ transport-release:
 arranger:
   reset
   cargo run --bin tek_arranger
+arranger-ext:
+  reset
+  cargo run --bin tek_arranger -- -n tek \
+    -i "1=Midi-Bridge:nanoKEY Studio 2:(capture_0) nanoKEY Studio nanoKEY Studio _" \
+    -o "1=Midi-Bridge:Komplete Audio 6 1:(playback_0) Komplete Audio 6 MIDI 1" \
+    -i "2=Midi-Bridge:nanoKEY Studio 2:(capture_0) nanoKEY Studio nanoKEY Studio _" \
+    -o "2=Midi-Bridge:Komplete Audio 6 1:(playback_0) Komplete Audio 6 MIDI 1" \
+    -i "3=Midi-Bridge:nanoKEY Studio 2:(capture_0) nanoKEY Studio nanoKEY Studio _" \
+    -o "3=Midi-Bridge:Komplete Audio 6 1:(playback_0) Komplete Audio 6 MIDI 1" \
+    -i "4=Midi-Bridge:nanoKEY Studio 2:(capture_0) nanoKEY Studio nanoKEY Studio _" \
+    -o "4=Midi-Bridge:Komplete Audio 6 1:(playback_0) Komplete Audio 6 MIDI 1"
 arranger-release:
   reset
   cargo run --release --bin tek_arranger
+arranger-release-ext:
+  reset
+  cargo run --release --bin tek_arranger -- -n tek \
+    -i "1=Midi-Bridge:nanoKEY Studio 2:(capture_0) nanoKEY Studio nanoKEY Studio _" \
+    -o "1=Midi-Bridge:Komplete Audio 6 1:(playback_0) Komplete Audio 6 MIDI 1" \
+    -i "2=Midi-Bridge:nanoKEY Studio 2:(capture_0) nanoKEY Studio nanoKEY Studio _" \
+    -o "2=Midi-Bridge:Komplete Audio 6 1:(playback_0) Komplete Audio 6 MIDI 1" \
+    -i "3=Midi-Bridge:nanoKEY Studio 2:(capture_0) nanoKEY Studio nanoKEY Studio _" \
+    -o "3=Midi-Bridge:Komplete Audio 6 1:(playback_0) Komplete Audio 6 MIDI 1" \
+    -i "4=Midi-Bridge:nanoKEY Studio 2:(capture_0) nanoKEY Studio nanoKEY Studio _" \
+    -o "4=Midi-Bridge:Komplete Audio 6 1:(playback_0) Komplete Audio 6 MIDI 1"
 
 groovebox:
   reset

crates/tek/src/cli/cli_arranger.rs

@@ -4,22 +4,33 @@ pub fn main () -> Usually<()> {
     ArrangerCli::parse().run()
 }
 
-/// Parses CLI arguments to the `tek_arranger` invocation.
+/// Launches an interactive MIDI arranger.
 #[derive(Debug, Parser)]
 #[command(version, about, long_about = None)]
 pub struct ArrangerCli {
     /// Name of JACK client
     #[arg(short, long)]
-    name:      Option<String>,
+    name: Option<String>,
+
     /// Whether to include a transport toolbar (default: true)
     #[arg(short, long, default_value_t = true)]
     transport: bool,
+
     /// Number of tracks
     #[arg(short = 'x', long, default_value_t = 4)]
-    tracks:    usize,
+    tracks: usize,
+
     /// Number of scenes
     #[arg(short, long, default_value_t = 8)]
-    scenes:    usize,
+    scenes: usize,
+
+    /// MIDI outs to connect each track to.
+    #[arg(short='i', long)]
+    midi_from: Vec<String>,
+
+    /// MIDI ins to connect each track to.
+    #[arg(short='o', long)]
+    midi_to:   Vec<String>,
 }
 
 impl ArrangerCli {
@@ -31,8 +42,9 @@ impl ArrangerCli {
         }
         Tui::run(JackClient::new(client_name.as_str())?.activate_with(|jack|{
             let mut app = ArrangerTui::try_from(jack)?;
+            let jack  = jack.read().unwrap();
             app.color = ItemPalette::random();
-            add_tracks(&mut app, self.tracks)?;
+            add_tracks(&jack, &mut app, &self)?;
             add_scenes(&mut app, self.scenes)?;
             Ok(app)
         })?)?;
@@ -40,7 +52,8 @@ impl ArrangerCli {
     }
 }
 
-fn add_tracks (app: &mut ArrangerTui, n: usize) -> Usually<()> {
+fn add_tracks (jack: &JackClient, app: &mut ArrangerTui, cli: &ArrangerCli) -> Usually<()> {
+    let n = cli.tracks;
     let track_color_1 = ItemColor::random();
     let track_color_2 = ItemColor::random();
     for i in 0..n {
@@ -48,6 +61,60 @@ fn add_tracks (app: &mut ArrangerTui, n: usize) -> Usually<()> {
             track_color_1.mix(track_color_2, i as f32 / n as f32).into()
         ))?;
         track.width = 8;
+        let name = track.name.read().unwrap();
+        track.player.midi_ins.push(
+            jack.register_port(&format!("{}I", &name), MidiIn::default())?
+        );
+        track.player.midi_outs.push(
+            jack.register_port(&format!("{}O", &name), MidiOut::default())?
+        );
+    }
+    for connection in cli.midi_from.iter() {
+        let mut split = connection.split("=");
+        let number = split.next().unwrap().trim();
+        if let Ok(track) = number.parse::<usize>() {
+            if track < 1 {
+                panic!("Tracks are zero-indexed")
+            }
+            if track > n {
+                panic!("Tried to connect track {track} or {n}. Pass -t {track} to increase number of tracks.")
+            }
+            if let Some(port) = split.next() {
+                if let Some(port) = jack.port_by_name(&port) {
+                    jack.client().connect_ports(&port, &app.tracks[track-1].player.midi_ins[0])?;
+                    //jack.client().connect_ports(&port, &app.tracks[track].player.midi_ins[0])?;
+                } else {
+                    panic!("Missing MIDI output: {port}. Use jack_lsp to list all port names.");
+                }
+            } else {
+                panic!("No port specified for track {track}. Format is TRACK_NUMBER=PORT_NAME")
+            }
+        } else {
+            panic!("Failed to parse track number: {number}")
+        }
+    }
+    for connection in cli.midi_to.iter() {
+        let mut split = connection.split("=");
+        let number = split.next().unwrap().trim();
+        if let Ok(track) = number.parse::<usize>() {
+            if track < 1 {
+                panic!("Tracks are zero-indexed")
+            }
+            if track > n {
+                panic!("Tried to connect track {track} or {n}. Pass -t {track} to increase number of tracks.")
+            }
+            if let Some(port) = split.next() {
+                if let Some(port) = jack.port_by_name(&port) {
+                    jack.client().connect_ports(&app.tracks[track-1].player.midi_outs[0], &port)?;
+                } else {
+                    panic!("Missing MIDI input: {port}. Use jack_lsp to list all port names.");
+                }
+            } else {
+                panic!("No port specified for track {track}. Format is TRACK_NUMBER=PORT_NAME")
+            }
+        } else {
+            panic!("Failed to parse track number: {number}")
+        }
     }
     Ok(())
 }

crates/tek/src/cli/cli_sequencer.rs

@@ -4,24 +4,29 @@ pub fn main () -> Usually<()> {
     SequencerCli::parse().run()
 }
 
+/// Launches a single interactive MIDI sequencer.
 #[derive(Debug, Parser)]
 #[command(version, about, long_about = None)]
 pub struct SequencerCli {
     /// Name of JACK client
     #[arg(short, long)]
     name:      Option<String>,
+
+    /// Whether to include a transport toolbar (default: true)
+    #[arg(short, long, default_value_t = true)]
+    transport: bool,
+
     /// MIDI outs to connect to (multiple instances accepted)
     #[arg(short='i', long)]
     midi_from: Vec<String>,
+
     /// MIDI ins to connect to (multiple instances accepted)
     #[arg(short='o', long)]
     midi_to:   Vec<String>,
+
     /// Default phrase duration (in pulses; default: 4 * PPQ = 1 bar)
     #[arg(short, long)]
     length:    Option<usize>,
-    /// Whether to include a transport toolbar (default: true)
-    #[arg(short, long, default_value_t = true)]
-    transport: bool
 }
 
 impl SequencerCli {
@@ -30,8 +35,8 @@ impl SequencerCli {
         Tui::run(JackClient::new(name)?.activate_with(|jack|{
             let mut app  = SequencerTui::try_from(jack)?;
             let jack     = jack.read().unwrap();
-            let midi_in  = jack.register_port("in", MidiIn::default())?;
+            let midi_in  = jack.register_port("i", MidiIn::default())?;
-            let midi_out = jack.register_port("out", MidiOut::default())?;
+            let midi_out = jack.register_port("o", MidiOut::default())?;
             connect_from(&jack, &midi_in,  &self.midi_from)?;
             connect_to(&jack, &midi_out, &self.midi_to)?;
             app.player.midi_ins.push(midi_in);
@@ -52,7 +57,7 @@ fn connect_from (jack: &JackClient, input: &Port<MidiIn>, ports: &[String]) -> U
         if let Some(port) = jack.port_by_name(&port) {
             jack.client().connect_ports(&port, &input)?;
         } else {
-            panic!("Missing MIDI output: {port}");
+            panic!("Missing MIDI output: {port}. Use jack_lsp to list all port names.");
         }
     }
     Ok(())
@@ -63,7 +68,7 @@ fn connect_to (jack: &JackClient, output: &Port<MidiOut>, ports: &[String]) -> U
         if let Some(port) = jack.port_by_name(&port) {
             jack.client().connect_ports(&output, &port)?;
         } else {
-            panic!("Missing MIDI output: {port}");
+            panic!("Missing MIDI input: {port}. Use jack_lsp to list all port names.");
         }
     }
     Ok(())