#!/bin/bash

#

# Script to parse the non-text sources metadata file and download

# the required files from the lookaside cache

#

# Please note: this script is non-destructive, it wont replace

# files that already exist, regardless of their state, allowing you

# to have work-in-progress content that wont get overwritten.

#

# Might want to drop this in ~/bin/ and chmod u+x it

surl="https://git.centos.org/sources/"

pn=$(basename `pwd`)

f=.${pn}.metadata

if [ ! -e ${f} ] ||  [ ! -d .git ] || [ ! -d SOURCES ]; then

  echo 'You need to run this from inside a sources git repo'

  exit 1

fi

br=$(cat .git/HEAD |awk -F'/' '{print $3}' )

while read a ; do

  fsha=$( echo ${a}  | cut -f1 -d\ )

  fname=$( echo ${a} | cut -f2 -d\ )

  if [ ${fsha} = "da39a3ee5e6b4b0d3255bfef95601890afd80709" ]; then

    # zero byte file

    touch ${fname}

  else

    if [ ! -e ${fname} ]; then

      curl ${surl}/${pn}/${br}/${fsha} -o ${fname}

    else

      echo "${fname} exists. skipping"

    fi

  fi

done < ${f}