collect: format date in UTC if requested

Signed-off-by: Antoine Tenart <[email protected]>

retis/src/collect/cli.rs

@@ -68,6 +68,9 @@ defaults to \"retis.data\"."
     #[arg(long, help = "Format used when printing an event.")]
     #[clap(value_enum, default_value_t=CliDisplayFormatFlavor::MultiLine)]
     pub(super) format: CliDisplayFormatFlavor,
+    #[arg(long, help = "Time format used when printing an event.")]
+    #[clap(value_enum, default_value_t=CliTimeFormat::MonotonicTimestamp)]
+    pub(super) time_format: CliTimeFormat,
     #[arg(
         id = "filter-packet",
         short,

retis/src/collect/collector.rs

@@ -421,9 +421,13 @@ impl Collectors {
         // Write events to stdout if we don't write to a file (--out) or if
         // explicitly asked to (--print).
         if collect.out.is_none() || collect.print {
+            let mut format = DisplayFormat::new(collect.format.into());
+            format.set_time_format(collect.time_format.into());
+            format.set_monotonic_offset(monotonic_clock_offset()?);
+
             printers.push(PrintSingle::new(
                 Box::new(io::stdout()),
-                PrintSingleFormat::Text(DisplayFormat::new(collect.format.into())),
+                PrintSingleFormat::Text(format),
             ));
         }