getBuildOrder.sh

   1 #!/bin/bash
   2
   3 getDeps() {
   4   local pkg="$1"
   5   local deps="$(grep "^# Depends on:" $pkg/Pkgfile 2>/dev/null| cut -d':' -f2-)"
   6   echo "${deps# *}"
   7 }
   8
   9 getRecursiveDeps() {
  10   local pkg="$1"
  11   local deps="$(getDeps $pkg)"
  12   if [ -z "$deps" ]; then
  13     case $pkg in
  14       # toolchain ports must be in order
  15       libgmp|libmpfr|libmpc|binutils|glibc|zlib|gcc)
  16         ;;
  17       *)
  18         if [ ! "$(echo $BUILD_ORDER | grep " ${pkg}")" ]; then
  19           BUILD_ORDER="$BUILD_ORDER $pkg"
  20         fi
  21         ;;
  22     esac
  23   else
  24     for d in ${deps[@]}; do
  25       getRecursiveDeps "$d"
  26     done
  27
  28     if [ ! "$(echo $BUILD_ORDER | grep " ${pkg}")" ]; then
  29       BUILD_ORDER="$BUILD_ORDER $pkg"
  30     fi
  31   fi
  32 }
  33
  34 ALT_START=0
  35
  36 # check for passed arguments
  37 if [ $# -ne 0 ]; then
  38   # use package as starting point
  39   ALT_START=1
  40   START_PKG=$1
  41   BUILD_ORDER=""
  42 else
  43   # global var to store all final deps order
  44   BUILD_ORDER="libgmp libmpfr libmpc binutils glibc zlib gcc"
  45 fi
  46
  47 for i in $(find . -type f -name 'Pkgfile' -exec dirname {} \; | sort); do
  48   PKG="$(basename $i)"
  49   case $PKG in
  50     # toolchain ports must be in order
  51     libgmp|libmpfr|libmpc|binutils|glibc|zlib|gcc) continue ;;
  52   esac
  53   getRecursiveDeps "$PKG"
  54 done
  55
  56 if [ $ALT_START -eq 0 ]; then
  57   echo $BUILD_ORDER | tr ' ' '\n'
  58 else
  59   echo $BUILD_ORDER | sed "s|.* $START_PKG|$START_PKG|" | tr ' ' '\n'
  60 fi
  61
  62 # End fo file