[arch-projects] [PATCH 1/2] [mkinitcpio] hooks/net: Refactor and remove sed cmd usage.

[Gerardo Exequiel Pozzi]

* ipconfig cmd writes a file in /tmp that is ready for direct evaluation.
We can use this instead of parsing the output, to do this some variable
renames are needed.

* Add /tmp as part of "base" layout since this can be used by others hooks/cmds.

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386 at yahoo.com.ar>
---
 hooks/net    |   64 +++++++++++++++------------------------------------------
 install/base |    2 +-
 2 files changed, 18 insertions(+), 48 deletions(-)

diff --git a/hooks/net b/hooks/net
index 24c08f8..b964d13 100644
--- a/hooks/net
+++ b/hooks/net
@@ -1,9 +1,13 @@
 # vim: set ft=sh:
 run_hook ()
 {
-    local line i address netmask gateway dns0 dns1 rootserver rootpath defaultrootpath defaultserver
-
-    : > /ip_opts
+    local line defaultrootpath defaultserver
+    # These variables will be parsed from /tmp/net-*.conf generated by ipconfig
+    local DEVICE
+    local IPV4ADDR IPV4BROADCAST IPV4NETMASK IPV4GATEWAY IPV4DNS0 IPV4DNS1
+    local HOSTNAME DNSDOMAIN NISDOMAIN ROOTSERVER ROOTPATH
+    local filename
+    # /tmp/net-*.conf
 
     if [ -z "${ip}" -a -n "${nfsaddrs}" ]; then
         ip="${nfsaddrs}"
@@ -11,63 +15,29 @@ run_hook ()
 
     if [ -n "${ip}" ]; then
         # setup network and save some values
-        ipconfig "ip=${ip}" | while read line; do
-            # echo ":: ${line}"
-            if [ "${line#"IP-Config:"}" != "${line}" ]; then
-                continue
-            fi
-            line="$(echo ${line} | sed -e 's/ :/:/g;s/: /=/g')"
-            for i in ${line}; do
-                case "${i}" in
-                    address=*)
-                        echo "${i}" >> /ip_opts
-                        ;;
-                    netmask=*)
-                        echo "${i}" >> /ip_opts
-                        ;;
-                    gateway=*)
-                        echo "${i}" >> /ip_opts
-                        ;;
-                    dns0=*)
-                        echo "${i}" >> /ip_opts
-                        ;;
-                    dns1=*)
-                        echo "${i}" >> /ip_opts
-                        ;;
-                    rootserver=*)
-                        echo "${i}" >> /ip_opts
-                        ;;
-                    rootpath=*)
-                        echo "${i}" >> /ip_opts
-                        ;;
-                esac
-            done
-        done
-
-        . /ip_opts
+        ipconfig "ip=${ip}"
 
-        echo "IP-Config: ${address}/${netmask}"
-        echo "IP-Config: gw: ${gateway}    dns0: ${dns0}    dns1: ${dns1}"
+        . /tmp/net-*.conf
 
         # calculate nfs_server, nfs_path and nfs_option for later nfs mount
         if [ "${root}" = "/dev/nfs" -o "${nfsroot}" != "" ]; then
-            # parse rootpath if defined by dhcp server
-            if [ -n "${rootpath}" ]; then
-                line="${rootpath}"
+            # parse ROOTPATH if defined by dhcp server
+            if [ -n "${ROOTPATH}" ]; then
+                line="${ROOTPATH}"
                 nfs_server="${line%%:*}"
-                [ "${nfs_server}" = "${line}" ] && nfs_server="${rootserver}"
+                [ "${nfs_server}" = "${line}" ] && nfs_server="${ROOTSERVER}"
                 defaultserver="${nfs_server}"
                 line="${line#*:}"
                 nfs_path="${line}"
                 defaultrootpath="${nfs_path}"
             else
-                # define a default rootpath
-                if [ "${rootpath}" = "" ]; then
-                    defaultrootpath="/tftpboot/${address}"
+                # define a default ROOTPATH
+                if [ "${ROOTPATH}" = "" ]; then
+                    defaultrootpath="/tftpboot/${IPV4ADDR}"
                 fi
             fi
 
-            # parse nfsroot if present (overrides rootpath)
+            # parse nfsroot if present (overrides ROOTPATH)
             if [ -n "${nfsroot}" ]; then
                 line="${nfsroot}"
                 nfs_server="${line%%:*}"
diff --git a/install/base b/install/base
index 0726fa2..db9752e 100644
--- a/install/base
+++ b/install/base
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 build() {
-    for dir in new_root proc sys dev run usr/{bin,sbin}; do
+    for dir in new_root proc sys dev run tmp usr/{bin,sbin}; do
         add_dir "/$dir"
     done
 
-- 
1.7.7.3