Make label available to --command.

src/alarm.rs

@@ -162,9 +162,9 @@ impl AlarmRoster {
     pub fn check(&mut self,
         clock: &mut Clock,
         layout: &Layout,
-        countdown: &mut Countdown) -> Option<u32> {
+        countdown: &mut Countdown) -> Option<(u32, String)> {
 
-        let mut ret: Option<u32> = None;
+        let mut ret: Option<(u32, String)> = None;
         let mut index = 0;
 
         for alarm in &mut self.list {
@@ -172,7 +172,7 @@ impl AlarmRoster {
             if !alarm.exceeded {
                 if alarm.time <= clock.elapsed {
                     // Found alarm to raise.
-                    ret = Some(alarm.time);
+                    ret = Some((alarm.time, alarm.label.clone()));
                     alarm.exceeded = true;
                     clock.color_index = Some(alarm.color_index);
                     countdown.value = 0;
@@ -284,7 +284,7 @@ impl AlarmRoster {
 }
 
 // Execute the command given on the command line.
-pub fn exec_command(config: &Config, elapsed: u32) -> Option<Child> {
+pub fn exec_command(config: &Config, elapsed: u32, label: String) -> Option<Child> {
     let mut args: Vec<String> = Vec::new();
     let time: String;
 
@@ -298,7 +298,7 @@ pub fn exec_command(config: &Config, elapsed: u32) -> Option<Child> {
         // Replace every occurrence of "{}".
         args.reserve_exact(command.len());
         for s in command {
-            args.push(s.replace("{}", &time));
+            args.push(s.replace("{t}", &time).replace("{l}", &label));
         }
 
         match Command::new(&command[0]).args(&args[1..])

src/main.rs

@@ -34,9 +34,9 @@ PARAMETERS:
 OPTIONS:
   -h, --help            Show this help.
   -v, --version         Show version information.
-  -e, --exec [COMMAND]  Execute COMMAND on alarm. Every occurrence of {}
-                        will be replaced by the elapsed time in (HH:)MM:SS
-                        format.
+  -e, --exec [COMMAND]  Execute COMMAND on alarm. Occurrences of {t} will
+                        be replaced by the alarm time in (HH:)MM:SS format.
+                        Occurrences of {l} by alarm label.
   -p, --plain           Use simpler block chars.
   -q, --quit            Quit program after last alarm.
 
@@ -272,7 +272,7 @@ fn main() {
             layout.update(clock.elapsed >= 3600, clock.elapsed == 3600);
 
             // Check for exceeded alarms.
-            if let Some(time) = alarm_roster.check(&mut clock, &layout, &mut countdown) {
+            if let Some((time, label)) = alarm_roster.check(&mut clock, &layout, &mut countdown) {
                 // Write ASCII bell code.
                 write!(stdout, "{}", 0x07 as char).unwrap();
                 layout.force_redraw = true;
@@ -280,7 +280,7 @@ fn main() {
                 // Run command if configured.
                 if config.command.is_some() {
                     if spawned.is_none() {
-                        spawned = exec_command(&config, time);
+                        spawned = exec_command(&config, time, label);
                     } else {
                         // The last command is still running.
                         eprintln!("Not executing command, as its predecessor is still running");