dkl cg ls: more cols + customizable list

src/bin/dkl.rs

@@ -1,5 +1,5 @@
 use clap::{CommandFactory, Parser, Subcommand};
-use eyre::{Result, format_err};
+use eyre::{format_err, Result};
 use human_units::Duration;
 use log::{debug, error};
 use std::net::SocketAddr;
@@ -99,6 +99,8 @@ enum CgCmd {
         root: Option<PathBuf>,
         #[arg(long, short = 'X')]
         exclude: Vec<String>,
+        #[arg(long, short = 'C')]
+        cols: Option<String>,
     },
 }
 
@@ -179,7 +181,11 @@ async fn main() -> Result<()> {
         .map(|_| ())?),
 
         C::Cg { cmd } => match cmd {
-            CgCmd::Ls { root, exclude } => Ok(dkl::cgroup::ls(root, &exclude).await?),
+            CgCmd::Ls {
+                root,
+                exclude,
+                cols,
+            } => Ok(dkl::cgroup::ls(root, &exclude, cols.as_deref()).await?),
         },
     }
 }