Properly detect OpenWRT in global explorers

Signed-off-by: Giel van Schijndel <giel+cdist@mortis.eu>

conf/explorer/lsb_codename

@@ -20,7 +20,14 @@
 #
 
 set +e
-lsb_release=$(which lsb_release 2>/dev/null)
-if [ -x "$lsb_release" ]; then
-   $lsb_release --short --codename
-fi
+case "$($__explorer/os)" in
+   openwrt)
+      (. /etc/openwrt_release && echo "$DISTRIB_CODENAME")
+   ;;
+   *)
+      lsb_release=$(which lsb_release 2>/dev/null)
+      if [ -x "$lsb_release" ]; then
+         $lsb_release --short --codename
+      fi
+   ;;
+esac

conf/explorer/lsb_description

@@ -20,7 +20,14 @@
 #
 
 set +e
-lsb_release=$(which lsb_release 2>/dev/null)
-if [ -x "$lsb_release" ]; then
-   $lsb_release --short --description
-fi
+case "$($__explorer/os)" in
+   openwrt)
+      (. /etc/openwrt_release && echo "$DISTRIB_DESCRIPTION")
+   ;;
+   *)
+      lsb_release=$(which lsb_release 2>/dev/null)
+      if [ -x "$lsb_release" ]; then
+         $lsb_release --short --description
+      fi
+   ;;
+esac

conf/explorer/lsb_id

@@ -20,7 +20,14 @@
 #
 
 set +e
-lsb_release=$(which lsb_release 2>/dev/null)
-if [ -x "$lsb_release" ]; then
-   $lsb_release --short --id
-fi
+case "$($__explorer/os)" in
+   openwrt)
+      (. /etc/openwrt_release && echo "$DISTRIB_ID")
+   ;;
+   *)
+      lsb_release=$(which lsb_release 2>/dev/null)
+      if [ -x "$lsb_release" ]; then
+         $lsb_release --short --id
+      fi
+   ;;
+esac

conf/explorer/lsb_release

@@ -20,7 +20,14 @@
 #
 
 set +e
-lsb_release=$(which lsb_release 2>/dev/null)
-if [ -x "$lsb_release" ]; then
-   $lsb_release --short --release
-fi
+case "$($__explorer/os)" in
+   openwrt)
+      (. /etc/openwrt_release && echo "$DISTRIB_RELEASE")
+   ;;
+   *)
+      lsb_release=$(which lsb_release 2>/dev/null)
+      if [ -x "$lsb_release" ]; then
+         $lsb_release --short --release
+      fi
+   ;;
+esac

conf/explorer/os

@@ -56,6 +56,11 @@ if [ -f /etc/gentoo-release ]; then
    exit 0
 fi
 
+if [ -f /etc/openwrt_version ]; then
+    echo openwrt
+    exit 0
+fi
+
 if [ -f /etc/owl-release ]; then
    echo owl
    exit 0

conf/explorer/os_version

@@ -45,6 +45,9 @@ case "$($__explorer/os)" in
    *bsd|solaris)
       uname -r
    ;;
+   openwrt)
+      cat /etc/openwrt_version
+   ;;
    owl)
       cat /etc/owl-release
    ;;