#!/bin/bash

# Autogeneries the quilt `series` from the patch order in the spec file.

# We don't use `quilt setup` because it makes a huge mess and doesn't work.

component="glibc"

rm -f series.new

extra_args="--fuzz=0"

count=0

# Filter out the patches, and use `_` as our pseudo-IFS to prevent expansion.

for i in `grep '^%patch' glibc.spec | sed -e 's,%patch,,g' -e 's, ,_,g'`; do

    # Split the patch into number and arguments.

    # 1 - Patch number.

    # 2-N - Patch arguments.

    # Get back our elements by undoing pseudo-IFS change.

    elements=(`echo $i | sed -e 's,_, ,g'`)

    num=${elements[0]}

    args=${elements[@]:1}

    # Find the next patch that applies in order and write it out.

    # This way we transform the patch # list into a patch file list in order.

    grep "Patch${num}: " glibc.spec \

	| sed -e 's,Patch.*: ,,g' -e "s,\$, ${args[@]} ${extra_args},g" \

	| sed -e "s,%{name},${component},g" \

	>> series.new

    ((count++))

done

# Double check we processed the correct number of patches.

fcount=`wc -l series.new | sed -e 's, .*$,,g'`

if [ $fcount -ne $count ]; then

    echo "Error! Processed patch count doesn't match spec file count ($fcount != $count)."

    exit 1

fi

echo "Processed $count patches."

mv series.new series

echo "Generated quilt ./series file, please commit."

exit 0