makeRootfs.sh

   1 #!/bin/bash
   2
   3 # msgUsage: show a usage message and exit
   4 msgUsage() {
   5   echo "Usage: $(basename $0) <tmp-dir> <pkg-dir> <release-dir> <release-name>"
   6   echo "Examples:"
   7   echo " \$ $(basename $0) /tmp/rootfs ports/core-cross . minirootfs-XX"
   8   echo " \$ $(basename $0) /tmp/rootfs /pub/pkg releases crux-arm-rootfs-XX"
   9   exit 0
  10 }
  11
  12 # msgError: show a error message and exit
  13 msgError() {
  14   echo "Error, $@" 2>&1
  15   exit 1
  16 }
  17
  18 # checkCommands: checks for command dependencies
  19 checkCommands() {
  20   for cmd in sudo pkgmk tar md5sum; do
  21     if ! which $cmd 2>&1 >/dev/null; then
  22       msgError "'$cmd' is not in your \$PATH and you need it to execute this script"
  23     fi
  24   done
  25 }
  26
  27 # checkVars: checks for user given arguments
  28 #
  29 # params:
  30 # $1 - TMPDIR
  31 # $2 - PKGDIR
  32 # $3 - RELEASE_DIR
  33 # $4 - RELEASE_NAME
  34 checkVars() {
  35   [ $# -lt 1 ] && msgUsage
  36   [ ! -z "$1" ] && TMPDIR="$1"
  37   [ "$TMPDIR" = "/tmp" ] && msgError "you can't use /tmp as TMPDIR"
  38   [ ! -z "$2" ] && PKGDIR="$2"
  39   [ ! -z "$3" ] && RELEASE_DIR="$3"
  40   [ ! -z "$4" ] && RELEASE_NAME="$4"
  41   # check for directories, if not create them
  42   for dir in $TMPDIR $RELEASE_DIR; do
  43     if [ ! -d "$dir" ]; then
  44       install -d $dir || msgError "can't create directory $dir"
  45     fi
  46   done
  47   TMPDIR="$(cd $TMPDIR; pwd)"
  48   PKGDIR="$(cd $PKGDIR; pwd)"
  49   RELEASE_DIR="$(cd $RELEASE_DIR; pwd)"
  50   [ -z "$PACKAGES" ] && PACKAGES="$(find $PKGDIR -type f -name '*#*pkg.tar.*')"
  51 }
  52
  53 # global variables
  54 PWD_DIR="$(pwd)"
  55 TMPDIR="$PWD_DIR/tmp"
  56 PKGDIR="$PWD_DIR/pkg"
  57
  58 checkCommands
  59 checkVars $@
  60
  61 echo "+ Initializating pkgutils database..."
  62 sudo install -d -m 0755 $TMPDIR/var/lib/pkg
  63 sudo touch $TMPDIR/var/lib/pkg/db
  64 sudo chmod 0444 $TMPDIR/var/lib/pkg/db
  65
  66 pkgnum=0
  67 echo "+ Installing packages..."
  68 for pkg in $PACKAGES; do
  69   sudo pkgadd -r $TMPDIR $pkg || msgError "failed to install $pkg"
  70   let pkgnum=$pkgnum+1
  71   printf "%-3s - %s\n" $pkgnum $(basename $pkg)
  72 done
  73
  74 echo "+ Creating the tarball. Please be patient..."
  75 cd $TMPDIR && sudo tar cJf $RELEASE_DIR/$RELEASE_NAME.tar.xz * && cd -
  76
  77 echo "+ Creating the md5sum..."
  78 cd $RELEASE_DIR && md5sum $RELEASE_NAME.tar.xz > $RELEASE_NAME.tar.xz.md5 && cd -
  79
  80 echo "+ Finished $RELEASE_DIR/$RELEASE_NAME.tar.xz ($pkgnum packages)"
  81
  82 sudo rm -rf $TMPDIR
  83
  84 # End of file