From d6829755d60067aa229fbc23979436df9c443670 Mon Sep 17 00:00:00 2001
From: CyberLeo <cyberleo@cyberleo.net>
Date: Wed, 4 May 2011 03:18:34 -0500
Subject: [PATCH] j: support 'ls' verb for listing chroots

---
 j  | 24 ++++++++++++++++--------
 ls |  1 +
 2 files changed, 17 insertions(+), 8 deletions(-)
 create mode 120000 ls

diff --git a/j b/j
index b3aaaf3..6602fb5 100755
--- a/j
+++ b/j
@@ -46,14 +46,6 @@ jenv="
   USER=${USER}
 "
 
-# List available jails
-j_ls() {
-  ( cd "${jbase}"; ls -1 ) | while read jname
-  do
-    something
-  done
-}
-
 # Create a new chroot, somehow
 j_init() {
   # Either a debian chroot with debootstrap or a gentoo chroot with stage3 + portage tarballs
@@ -99,6 +91,20 @@ j_params() {
   )
 }
 
+# Is this a chroot?
+j_is() {
+  eval $(j_params "${1}")
+  [ "${jerror}" ] && return 1 || return 0
+}
+
+# List available chroots
+j_ls() {
+  ( cd "${jbase}"; ls -1 ) | while read jname
+  do
+    j_is "${jname}" && echo "${jname}"
+  done
+}
+
 # Chroot is 'up' if /dev/pts and /proc are mounted
 j_up() {
   jname="${1:-${jname}}"
@@ -109,6 +115,7 @@ j_up() {
   return 0
 }
 
+# Poll chroot status (j_up)
 j_status() {
   [ -z "${1}" ] && set - $(l_ls)
   while [ "${1}" ]
@@ -154,6 +161,7 @@ j_stop() {
 }
 
 case "${cmd}" in
+ls|list) j_ls ;;
 status) j_status "${jname}" "${@}" ;;
 start) j_start "${jname}" ;;
 shell|enter) j_shell "${jname}" ;;
diff --git a/ls b/ls
new file mode 120000
index 0000000..0fe2fa5
--- /dev/null
+++ b/ls
@@ -0,0 +1 @@
+j
\ No newline at end of file
-- 
2.42.0