From cc0712f26b594e7f9815de236da5c94f36daf8c0 Mon Sep 17 00:00:00 2001
From: Julien Valroff <julien@kirya.net>
Date: Wed, 6 Jan 2010 20:45:11 +0100
Subject: Complete rewrite of the postinst script

---
 debian/postinst | 122 +++++++++++++++++++++++++-------------------------------
 1 file changed, 54 insertions(+), 68 deletions(-)

(limited to 'debian/postinst')

diff --git a/debian/postinst b/debian/postinst
index 329a95c..aa74e9c 100644
--- a/debian/postinst
+++ b/debian/postinst
@@ -1,77 +1,63 @@
-#!/bin/sh
+#! /bin/sh
+# postinst script for mailgraph
+#
+# see: dh_installdeb(1)
 
 set -e
 
-CONFIG=/etc/default/mailgraph
-CONFIG_BAK=/etc/default/mailgraph.bak
-RRD_DIR=/var/lib/mailgraph
-NEED_UPDATE=0
+# summary of how this script can be called:
+#        * <postinst> `configure' <most-recently-configured-version>
+#        * <old-postinst> `abort-upgrade' <new version>
+#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
+#          <new-version>
+#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
+#          <failed-install-package> <version> `removing'
+#          <conflicting-package> <version>
+# for details, see http://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+#
 
-# load debconf library
 . /usr/share/debconf/confmodule
+DF=/etc/default/mailgraph
 
-write_config()
-{
-  cat <<EOF > "${CONFIG}"
-# variables for /etc/init.d/mailgraph
-#
-# Should Mailgraph start on boot (true|false) [debconf]
-BOOT_START=${BOOT_START}
-# Logfile used by mailgraph (default: /var/log/mail.log) [debconf]
-MAIL_LOG=${MAIL_LOG}
-# Ignore mails from localhost (true|false) [debconf]
-IGNORE_LOCALHOST=${IGNORE_LOCALHOST}
-# Extra options to be passed to mailgraph (see mailgraph -h output)
-EXTRA_OPTIONS="${EXTRA_OPTIONS}"
-EOF
-  return $?
-}
-
-update_config()
-{
-  # create backup
-  cp ${CONFIG} ${CONFIG_BAK}
-  # write new configuration
-  write_config
-  # remove backup, if configuration was created successfully
-  if [ $? -eq 0 ]; then
-    rm ${CONFIG_BAK}
-  else
-    mv ${CONFIG_BAK} ${CONFIG}
-  fi
-}
-
-make_rrd_dir()
-{
-  if [ ! -d ${RRD_DIR} ]; then
-    mkdir ${RRD_DIR}
-  fi
-    chown www-data:www-data ${RRD_DIR}
-}
-
-if [ -f ${CONFIG} ]; then
-  . ${CONFIG}
-  NEED_UPDATE=1
-fi
-
-db_get mailgraph/start_on_boot
-BOOT_START=${RET}
-db_get mailgraph/mail_log
-MAIL_LOG=${RET}
-db_get mailgraph/ignore_localhost
-IGNORE_LOCALHOST=${RET}
-
-if [ ! -n "${EXTRA_OPTIONS}" ]; then
-  EXTRA_OPTIONS=""
-fi
-
-if [ ${NEED_UPDATE} -eq 0 ]; then
-  write_config
-else
-  update_config
-fi
-
-make_rrd_dir
+case "$1" in
+    configure)
+
+        db_get mailgraph/start_on_boot || true
+        BOOT_START=$RET
+
+        db_get mailgraph/mail_log || true
+        MAIL_LOG=$RET
+
+        db_get mailgraph/ignore_localhost
+        IGNORE_LOCALHOST=$RET
+
+        if [ -w $DF ]; then
+            TEMPFILE=`mktemp` || exit 1
+            sed $DF -e "s,^ *BOOT_START=.*,BOOT_START=$BOOTSTART," \
+                    -e "s,^ *MAIL_LOG=.*,MAIL_LOG=$MAIL_LOG," \
+                    -e "s,^ *IGNORE_LOCALHOST=.*,IGNORE_LOCALHOST=$IGNORE_LOCALHOST," \
+                    > $TEMPFILE
+            mv -f $TEMPFILE $DF
+            chmod 644 $DF
+        fi
+
+    ;;
+
+    abort-upgrade|abort-remove|abort-deconfigure)
+
+    ;;
+
+    *)
+        echo "postinst called with unknown argument \`$1'" >&2
+        exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
 
 #DEBHELPER#
+
 exit 0
+
-- 
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