ruby-patches.sh

#!/usr/bin/bash

RUBY_DIST_GIT=${RUBY_DIST_GIT:-$HOME/fedora-scm/own/ruby}
RUBY_GIT_REF=${RUBY_GIT_REF:-master}
RUBY_GIT_WORKING_BRANCH=fedora-ruby-$RUBY_GIT_REF
RUBY_GIT_WORKING_TAG=fedora-ruby-$RUBY_GIT_REF-tag

git checkout $RUBY_GIT_REF && \
git checkout -b $RUBY_GIT_WORKING_BRANCH

for p in \
  $(sed -n "/^Patch[[:digit:]]\+: / s/Patch[[:digit:]]\+:[[:blank:]]\+// p" $RUBY_DIST_GIT/ruby.spec)
do
  echo
  echo "* $p"

  if ! grep -E -q "^Subject:" $RUBY_DIST_GIT/$p; then
    echo "! Not in Git format: $p"
    continue
  fi

  git tag -f $RUBY_GIT_WORKING_TAG && \
  git am $RUBY_DIST_GIT/$p && \
  git format-patch --no-signature $RUBY_GIT_WORKING_TAG..HEAD --stdout > $RUBY_DIST_GIT/$p || \
  exit 1
done

git checkout $RUBY_GIT_REF && \
git tag -d $RUBY_GIT_WORKING_TAG && \
git branch -D $RUBY_GIT_WORKING_BRANCH