From 9127e0610932b52abaa52cf2e28afd41d03eec3b Mon Sep 17 00:00:00 2001
From: Nico Schottelius <nico@bento.schottelius.org>
Date: Fri, 25 Apr 2014 01:48:58 +0200
Subject: [PATCH] CentOS support for __hostname

Signed-off-by: Nico Schottelius <nico@bento.schottelius.org>
---
 .../__hostname/explorer/hostname_sysconfig    | 26 ++++++++++++++++++
 cdist/conf/type/__hostname/gencode-remote     | 27 +++++++++++++++----
 cdist/conf/type/__hostname/manifest           | 27 ++++++++++++++-----
 docs/changelog                                |  1 +
 4 files changed, 69 insertions(+), 12 deletions(-)
 create mode 100755 cdist/conf/type/__hostname/explorer/hostname_sysconfig

diff --git a/cdist/conf/type/__hostname/explorer/hostname_sysconfig b/cdist/conf/type/__hostname/explorer/hostname_sysconfig
new file mode 100755
index 00000000..d0d7b4e7
--- /dev/null
+++ b/cdist/conf/type/__hostname/explorer/hostname_sysconfig
@@ -0,0 +1,26 @@
+#!/bin/sh
+#
+# 2014 Nico Schottelius (nico-cdist at schottelius.org)
+#
+# This file is part of cdist.
+#
+# cdist is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# cdist is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with cdist. If not, see <http://www.gnu.org/licenses/>.
+#
+#
+# Retrieve the contents of /etc/hostname
+#
+
+if [ -f /etc/sysconfig/network ]; then
+    awk -F= '/^HOSTNAME=/ { print $2 }' /etc/sysconfig/network
+fi
diff --git a/cdist/conf/type/__hostname/gencode-remote b/cdist/conf/type/__hostname/gencode-remote
index 3d208cbe..eec3bc9f 100755
--- a/cdist/conf/type/__hostname/gencode-remote
+++ b/cdist/conf/type/__hostname/gencode-remote
@@ -28,14 +28,24 @@ fi
 os=$(cat "$__global/explorer/os")
 name_running=$(cat "$__global/explorer/hostname")
 name_config=$(cat "$__object/explorer/hostname_file")
+name_sysconfig=$(cat "$__object/explorer/hostname_file")
 has_hostnamectl=$(cat "$__object/explorer/has_hostnamectl")
 
 ################################################################################
 # If everything is ok -> exit
 #
-if [ "$name_config" = "$name_should" -a "$name_running" = "$name_should" ]; then
-    exit 0
-fi
+case "$os" in
+    archlinux|debian|ubuntu)
+        if [ "$name_config" = "$name_should" -a "$name_running" = "$name_should" ]; then
+            exit 0
+        fi
+    ;;
+    centos)
+        if [ "$name_sysconfig" = "$name_should" -a "$name_running" = "$name_should" ]; then
+            exit 0
+        fi
+    ;;
+esac
 
 ################################################################################
 # Setup hostname
@@ -45,6 +55,13 @@ echo changed >> "$__messages_out"
 if [ "$has_hostnamectl" ]; then
     echo "hostnamectl set-hostname '$name_should'"
 else
-    echo "hostname '$name_should'"
-    echo "printf '%s\n' '$name_should' > /etc/hostname"
+    case "$os" in
+        archlinux|debian|ubuntu)
+            echo "hostname '$name_should'"
+            echo "printf '%s\n' '$name_should' > /etc/hostname"
+        ;;
+        centos)
+            echo "hostname '$name_should'"
+        ;;
+    esac
 fi
diff --git a/cdist/conf/type/__hostname/manifest b/cdist/conf/type/__hostname/manifest
index 0544a6f9..b6985c1c 100755
--- a/cdist/conf/type/__hostname/manifest
+++ b/cdist/conf/type/__hostname/manifest
@@ -20,6 +20,12 @@
 #
 
 os=$(cat "$__global/explorer/os")
+if [ -f "$__object/parameter/name" ]; then
+    name_should="$(cat "$__object/parameter/name")"
+else
+    name_should="$(echo "${__target_host%%.*}")"
+fi
+
 
 not_supported() {
    echo "Your operating system ($os) is currently not supported by this type (${__type##*/})." >&2
@@ -28,11 +34,18 @@ not_supported() {
 }
 
 case "$os" in
-   archlinux|debian|ubuntu)
-      # handled in gencode-remote
-      :
-   ;;
-   *)
-      not_supported
-   ;;
+    archlinux|debian|ubuntu)
+        # handled in gencode-remote
+        :
+    ;;
+    centos)
+        __key_value sysconfig-hostname \
+            --file /etc/sysconfig/network \
+            --delimiter '=' \
+            --key HOSTNAME \
+            --value "$name_should" --exact_delimiter
+    ;;
+    *)
+        not_supported
+    ;;
 esac
diff --git a/docs/changelog b/docs/changelog
index bea0859c..6e69251f 100644
--- a/docs/changelog
+++ b/docs/changelog
@@ -7,6 +7,7 @@ Changelog
 
 3.1.3:
 	* New Type: __yum_repo (Steven Armstrong)
+	* Type __hostname: Add support for CentOS
 
 3.1.2: 2014-04-12
 	* Documentation: Add missing environment variables to reference