Provide custom time format config option

README.adoc

@@ -12,6 +12,9 @@ You should create a configuration file `.checkbar.toml` in your home directory,
 # Update interval in seconds. Default value if not set is 60 sec.
 interval = 60
 
+# Time format (optional), defaults to "%R" (= "%H:%M)"
+time_format = "%H:%M:%S" # = "%T"
+
 [[checks]]
 name = "Host 1"
 url = "https://host1.example.com"
@@ -49,6 +52,9 @@ interval = 60
 interval = "2m 30s"
 ----
 
+The value for `time_format` is used to set the time format to be shown. It defaults to `%R`.
+For available options, see: https://docs.rs/chrono/latest/chrono/format/strftime/index.html
+
 Each host or application to be checked consists of `name` and `url`.
 
 You can optionally specify `check_type`:

src/config.rs

@@ -13,6 +13,8 @@ pub struct Config {
         deserialize_with = "deserialize_duration"
     )]
     pub interval: Duration,
+    #[serde(default = "Config::default_time_format")]
+    pub time_format: String,
     #[serde(default)]
     pub colors: ColorConfig,
     #[serde(default)]
@@ -20,6 +22,10 @@ pub struct Config {
 }
 
 impl Config {
+    fn default_time_format() -> String {
+        return "%R".to_string();
+    }
+
     fn get_config_file() -> String {
         match env::args().nth(1) {
             Some(config_file) => config_file,
@@ -46,6 +52,7 @@ impl Default for Config {
     fn default() -> Self {
         Self {
             interval: Duration::from_secs(60),
+            time_format: Self::default_time_format(),
             colors: ColorConfig::default(),
             checks: vec![],
         }

src/lib.rs

@@ -24,15 +24,15 @@ pub struct ClickEvent {
     pub button: MouseButton,
 }
 
-pub async fn print_states(check_configs: &[CheckConfig]) {
+pub async fn print_states(config: &Config) {
     print!("[");
     let mut entries = vec![];
-    for check_config in check_configs {
+    for check_config in &config.checks {
         entries.push(format!("{}", check_host(check_config).await));
     }
     entries.push(
         json!({
-            "full_text": chrono::Local::now().format("%H:%M").to_string()
+            "full_text": chrono::Local::now().format(config.time_format.as_str()).to_string()
         })
         .to_string(),
     );

src/main.rs

@@ -31,7 +31,7 @@ async fn main() {
     let checks = task::spawn(async {
         loop {
             let config = Config::read();
-            print_states(&config.checks).await;
+            print_states(&config).await;
             let _ = sleep(config.interval).await;
         }
     });