Require latest carnet-upgrade version.

[carnet-upgrade.git] / src / functions.sh

diff --git a/src/functions.sh b/src/functions.sh
index 5fce053..6f85840 100644 (file)
--- a/src/functions.sh
+++ b/src/functions.sh
@@ -303,7 +303,7 @@ what_upgrade () {
 # funkcija za ispis paketa koje treba upgradeati
 check_upgrade () {
   local upgrade
-  upgrade="`what_upgrade`"
+  upgrade=${1:-"`what_upgrade`"}
 
   if [ "$upgrade" ]; then
     notice "
@@ -323,6 +323,29 @@ Nakon toga ponovno pozovite ovu skriptu."
   fi
 }
 
+# try to check if we are using the latest version of carnet-upgrade script
+check_my_version () {
+  local packages latest_version
+
+  packages=$(mktemp /var/lib/carnet-upgrade/Packages.XXXXXX)
+  if wget -q -O$packages $packages_uri; then
+    latest_version=$(sed -ne \
+        '/Package: carnet-upgrade/,/Description:/{ /Version: /s///p }' \
+        $packages)
+    rm -f $packages
+
+    if [ "$latest_version" ]; then
+      log "Running carnet-upgrade version is $version"
+      log "Latest carnet-upgrade version is $latest_version"
+      if dpkg --compare-versions "$version" lt "$latest_version"; then
+        check_upgrade " carnet-upgrade"
+      else log "Already using the latest carnet-upgrade version."; fi
+    else log "Failed to get latest version, skipping check."; fi
+  else log "Failed to download Packages file, skipping check."; fi
+
+  rm -f $packages
+}
+
 # if apache is installed make sure it's version 2
 check_apache_version () {
 
@@ -340,6 +363,32 @@ Nakon toga ponovno pozovite ovu skriptu."
   fi
 }
 
+# if grsec is installed make sure it is fresh
+check_grsec_kernel () {
+  local ver=`uname -r`
+
+  log "Kernel version: $ver"
+  if [ "$ver" = "${ver%-grsec}" ]; then
+    # not grsec variant
+    return 0
+  fi
+
+  if [ "$ver" = "${ver#2.6.2[4-9]}" ]; then
+    # kernel too old
+    notice "
+Prije prelaska na Debian Etch potrebno je napraviti nadogradnju na najnoviji grsec kernel.
+
+Pokrenite:
+  # apt-get update
+  # apt-get install kernel-2.6-cn
+  # reboot
+  
+Nakon toga ponovno pozovite ovu skriptu."
+    log "carnet-upgrade aborted, kernel upgrade needed."
+    exit 1
+  fi
+}
+
 upgrade () {
   local i to_install packages
   case "$1" in
@@ -879,8 +928,7 @@ free_space() {
 
 download_size() {
   local size
-  size=$(LC_ALL=C apt-get --yes --print-uris "$@" \
-         | grep '^Need to get ')
+  size=$(LC_ALL=C apt-get --yes --print-uris "$@" | grep '^Need to get ')
 
   if [ $? -ne 0 ]; then
     log "Failed to get download size for 'apt-get $@'."
@@ -896,8 +944,7 @@ download_size() {
 installed_size() {
   local package size
   package=$1
-  size=$(apt-cache show $package \
-         | grep '^Installed-Size:')
+  size=$(apt-cache show $package | grep '^Installed-Size:')
 
   if [ $? -ne 0 ]; then
     log "Failed to get installed size for '$package'."