scripts/check_depmod

   1 #!/bin/bash
   2 # Copyright 2009        Luis R. Rodriguez <mcgrof@gmail.com>
   3 #
   4 # Ensures your distribution likes to prefer updates/ over the kernel/
   5 # search updates built-in
   6
   7 # Seems Mandriva has an $DEPMOD_DIR but it doesn't have any files,
   8 # so lets deal with those distributions.
   9 DEPMOD_CONF="/etc/depmod.conf"
  10 DEPMOD_CONF_TMP="$DEPMOD_CONF.compat-wireless.old"
  11 DEPMOD_DIR="/etc/depmod.d/"
  12 COMPAT_DEPMOD_FILE=compat-wireless.conf
  13 GREP_REGEX_UPDATES="^[[:space:]]*search.*[[:space:]]updates\([[:space:]]\|$\)"
  14 GREP_REGEX_SEARCH="^[[:space:]]*search[[:space:]].\+$"
  15 DEPMOD_CMD="depmod"
  16
  17 function add_compat_depmod_conf {
  18         echo "NOTE: Your distribution lacks an $DEPMOD_DIR directory with "
  19         echo "updates/ directory being prioritized for modules, we're adding "
  20         echo "one for you."
  21         mkdir -p $DEPMOD_DIR
  22         FIRST_FILE=$(ls $DEPMOD_DIR|head -1)
  23         [ -n "$FIRST_FILE" ] && while [[ $FIRST_FILE < $COMPAT_DEPMOD_FILE ]]; do
  24                 COMPAT_DEPMOD_FILE="0$COMPAT_DEPMOD_FILE"
  25         done
  26         echo "search updates" > $DEPMOD_DIR/$COMPAT_DEPMOD_FILE
  27 }
  28
  29 function add_global_depmod_conf {
  30         echo "NOTE: Your distribution lacks updates/ directory being"
  31         echo "prioritized for modules, we're adding it to $DEPMOD_CONF."
  32         rm -f $DEPMOD_CONF_TMP
  33         [ -f $DEPMOD_CONF ] && cp -f $DEPMOD_CONF $DEPMOD_CONF_TMP
  34         echo "search updates" > $DEPMOD_CONF
  35         [ -f $DEPMOD_CONF_TMP ] && cat $DEPMOD_CONF_TMP >> $DEPMOD_CONF
  36 }
  37
  38 function depmod_updates_ok {
  39         echo "depmod will prefer updates/ over kernel/ -- OK!"
  40 }
  41
  42 function add_depmod_conf {
  43         if [ -f "$DEPMOD_CONF" ]; then
  44                 add_global_depmod_conf
  45         else
  46                 DEPMOD_VERSION=$($DEPMOD_CMD --version | cut -d" " -f2 | sed "s/\.//")
  47                 if [[ $DEPMOD_VERSION -gt 36 ]]; then
  48                         add_compat_depmod_conf
  49                 else
  50                         add_global_depmod_conf
  51                 fi
  52         fi
  53 }
  54
  55 # =============================================================================
  56 # === MAIN ====================================================================
  57 # =============================================================================
  58
  59 GREP_FILES=""
  60 [ -f $DEPMOD_CONF ] && GREP_FILES="$DEPMOD_CONF"
  61 if [ -d $DEPMOD_DIR ]; then
  62         DEPMOD_FILE_COUNT=$(ls $DEPMOD_DIR | wc -l)
  63         [[ $DEPMOD_FILE_COUNT -gt 0 ]] && GREP_FILES="$GREP_FILES $DEPMOD_DIR/*"
  64 fi
  65
  66 if [ -n "$GREP_FILES" ]; then
  67         grep -q "$GREP_REGEX_SEARCH" $GREP_FILES
  68         if [[ $? -eq 0 ]]; then
  69                 grep -q "$GREP_REGEX_UPDATES" $GREP_FILES
  70                 if [[ $? -eq 0 ]]; then
  71                         depmod_updates_ok
  72                 else
  73                         add_depmod_conf
  74                 fi
  75         else
  76                 depmod_updates_ok
  77         fi
  78 else
  79         depmod_updates_ok
  80 fi
  81
  82 exit 0
  83