From b267e9357b46a728d62be0627a7f96b2d8cd9061 Mon Sep 17 00:00:00 2001
From: Simon Ruderich <simon@ruderich.org>
Date: Sun, 6 Aug 2023 09:26:06 +0200
Subject: [PATCH] zsh/rc: display network namespace in prompt

---
 shell/zsh/rc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/shell/zsh/rc b/shell/zsh/rc
index 660430c..515ae9b 100644
--- a/shell/zsh/rc
+++ b/shell/zsh/rc
@@ -228,6 +228,9 @@ local green="%{${fg[green]}%}"
 local yellow="%{${fg[yellow]}%}"
 local default="%{${fg[default]}%}"
 
+# Linux network namespace
+local netns="$(ip netns identify 2>/dev/null)"
+
 # vcs_info was added in 4.3.9 but it works in earlier versions too. So load it
 # if the necessary files are available in ~/.zsh/functions/vcs_info (often a
 # symbolic link to current checkout of Zsh's sources).
@@ -441,6 +444,10 @@ zshrc_prompt_precmd() {
     if [[ -n $SSH_CONNECTION ]]; then
         host="%U${host}%u"
     fi
+    # Linux network namespace if any
+    if [[ -n $netns ]]; then
+        host="${host}[$netns]"
+    fi
 
     # Number of background processes in yellow if not zero.
     local background="%(1j.${yellow}%j${default}.)"
-- 
2.43.2