scripts/make-module-ipkgs.sh

   1 #!/usr/bin/env bash
   2 #
   3 # make-module-ipkgs.sh - scan through modules directory and create a package
   4 #                        for each of them automatically.
   5 #
   6 # Copyright (C) 2015 - Phil Sutter <phil@nwl.cc>
   7 #
   8 # This program is free software: you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation, either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21 #
  22 # Usage:
  23 # $0 <ARCH> <KERNEL_VERSION> <LINUX_BUILD_DIR> <pkg-build-cmd> <PACKAGE_DIR>
  24
  25 ARCH="$1"
  26 VER="$2"
  27 BUILD_DIR="$3"
  28 PKG_BUILD="$4"
  29 PACKAGE_DIR="$5"
  30
  31 # declare associative arrays
  32 declare -A modpaths moddeps modlevels
  33
  34 # recursively find a level for given module which is high enough so all
  35 # dependencies are in a lower level
  36 find_modlevel() { # (modname)
  37         local dep level=0
  38         for dep in ${moddeps[$1]}; do
  39                 [[ -n "${modlevels[$dep]}" ]] || find_modlevel $dep
  40                 [[ ${modlevels[$dep]} -lt $level ]] || level=$((modlevels[$dep] + 1))
  41         done
  42         modlevels[$1]=$level
  43 }
  44
  45 # sanitize modname, ipkg does not allow uppercase or underscores
  46 pkgname() { # (modname)
  47         tr 'A-Z_' 'a-z-' <<< "kmod-$1"
  48 }
  49
  50 for modpath in $(find ${BUILD_DIR}/modules -name \*.ko | xargs); do
  51         modname="$(basename $modpath .ko)"
  52         moddep="$(strings $modpath | awk -F= '/^depends=/{print $2}' | sed 's/,/ /g')"
  53         modpaths[$modname]="$modpath"
  54         moddeps[$modname]="$moddep"
  55 done
  56
  57 #echo "modpaths:"
  58 #for modname in ${!modpaths[@]}; do
  59 #       echo "$modname: ${modpaths[$modname]}"
  60 #done
  61 #echo
  62 #echo "moddeps:"
  63 #for modname in ${!moddeps[@]}; do
  64 #       echo "$modname: ${moddeps[$modname]}"
  65 #done
  66 #echo
  67
  68 # start with empty directory, avoid leftovers after version change
  69 rm -rf ${BUILD_DIR}/linux-modules
  70
  71 for modname in ${!modpaths[@]}; do
  72         find_modlevel $modname
  73
  74         ctrlfile=${BUILD_DIR}/kmod-control/kmod-${modname}.control
  75         ipkgdir=${BUILD_DIR}/linux-modules/ipkg/$modname
  76
  77         cat >$ctrlfile <<-EOF
  78                 Package: $(pkgname $modname)
  79                 Priority: optional
  80                 Section: sys
  81                 Description: kernel module $modname
  82         EOF
  83         bash $(dirname $0)/make-ipkg-dir.sh $ipkgdir $ctrlfile $VER $ARCH
  84
  85         depline="kernel ($VER)"
  86         for m in ${moddeps[$modname]}; do
  87                 depline+=", $(pkgname ${m})"
  88         done
  89         echo "Depends: $depline" >>${ipkgdir}/CONTROL/control
  90         mkdir -p ${ipkgdir}/lib/modules/${VER}
  91         cp ${modpaths[$modname]} ${ipkgdir}/lib/modules/${VER}
  92         cat >${ipkgdir}/CONTROL/postinst <<EOF
  93 #!/bin/sh
  94 if [ -z \${IPKG_INSTROOT} ]; then
  95         . /etc/functions.sh
  96         load_modules /etc/modules.d/${modlevels[$modname]}-$modname
  97 fi
  98 EOF
  99         chmod 0755 ${ipkgdir}/CONTROL/postinst
 100         mkdir -p ${ipkgdir}/etc/modules.d
 101         echo $modname >${ipkgdir}/etc/modules.d/${modlevels[$modname]}-$modname
 102         ${PKG_BUILD} ${ipkgdir} ${PACKAGE_DIR} || exit 1
 103 done