Add CLI arg to dump the last pre-reboot logs (#46)

This is passed through to `logcat` and has the same argument signature (`-L`, `--last`). Co-authored-by: Simon B. Gasse <[email protected]>
flxo · Feb 13, 2023 · 2104a5a · 2104a5a
1 parent f582ce4
commit 2104a5a
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diff --git a/src/cli.rs b/src/cli.rs
@@ -90,6 +90,11 @@ pub fn cli() -> App<'static, 'static> {
              .takes_value(true)
              .multiple(true)
              .help( "Read from file instead of command. Use 'serial://COM0@115200,8N1 or similiar for reading a serial port"))
+        .arg(Arg::with_name("last")
+             .short("L")
+             .long("last")
+             .conflicts_with_all(&["input", "COMMAND"])
+             .help("Dump the logs prior to the last reboot"))
         .arg(Arg::with_name("level")
              .short("l")
              .long("level")

diff --git a/src/reader.rs b/src/reader.rs
@@ -155,6 +155,11 @@ pub fn logcat(args: &ArgMatches) -> Result<LogStream, Error> {
         respawn = false;
     }
 
+    if args.is_present("last") {
+        cmd.push("--last".into());
+        respawn = false;
+    }
+
     for buffer in args
         .values_of("buffer")
         .map(|m| m.map(ToOwned::to_owned).collect::<Vec<String>>())