ditconfig/polybar: use dynamic network interface detection

As result, provide name of the network interface to polybar instead of
interface type.

2 files changed, 8 insertions, 3 deletions

diff --git a/dotconfig/polybar/launch.sh b/dotconfig/polybar/launch.sh
index f607575..6a70ea0 100755
--- a/dotconfig/polybar/launch.sh
+++ b/dotconfig/polybar/launch.sh
@@ -7,11 +7,11 @@ killall -9 polybar
 while pgrep -u $UID -x polybar >/dev/null; do sleep 1; done
 
 # Set variables
-NETWORK_TYPE="wired" # or `wireless`
+NETWORK_INTERFACE=$(ip route | grep '^default' | awk '{print $5}' | head -n1)
 
 # Launch the bar
 echo "---" | tee -a /tmp/mypolybar.log
 for m in $(polybar --list-monitors | cut -d":" -f1); do
-	MONITOR=$m NETWORK_TYPE=$NETWORK_TYPE polybar main >> /tmp/mypolybar.log 2>&1 & disown
+	MONITOR=$m NETWORK_INTERFACE=$NETWORK_INTERFACE polybar main >> /tmp/mypolybar.log 2>&1 & disown
 done
 echo "Bar launched..."
diff --git a/dotconfig/polybar/modules b/dotconfig/polybar/modules
index 049e5f3..2cb39a3 100644
--- a/dotconfig/polybar/modules
+++ b/dotconfig/polybar/modules
@@ -237,12 +237,17 @@
 [module/network]
 	type = internal/network
 
+	; Name of the network interface to display. You can get the names of the
+	; interfaces on your machine with `ip link`
+	; Wireless interfaces often start with `wl` and ethernet interface with `eno` or `eth`
+	interface = ${env:NETWORK_INTERFACE:eno1}
+
 	; If no interface is specified, polybar can detect an interface of the given type.
 	; If multiple are found, it will prefer running interfaces and otherwise just
 	; use the first one found.
 	; Either 'wired' or 'wireless'
 	; New in version 3.6.0
-	interface-type = ${env:NETWORK_TYPE:wired}
+	; interface-type = ${env:NETWORK_TYPE:wired}
 
 	; Seconds to sleep between updates
 	interval = 1.0