gistfile1.txt

#!/bin/bash
file="$1"

if [ -z "$file" ]; then
	file="ruby.spec"
fi

function die {
	for var in "$@"
	do
		echo "$var" 1>&2
	done
	exit 1
}

sources=""
applied=""
existing=""

# Get patches that are packaged
sources=$(grep -e "^Patch[0-9]*:" $file)
# Get patches that are applied
applied=$(sed -nr 's/%patch([0-9]*).*/\1/p' $file)
# Get patches in current dir
if [ -z "$(ls $file)" ]; then
	die "No specfile found... are we in the correct directory?"
else
	existing=$(ls -- *.patch)
fi

if [[ "$applied" == $(echo "$sources" | cut -d':' -f 1 | sed -nr 's/Patch([0-9]*)/\1/p')  ]]; then
	echo "Specfile matches ✓"
else
	die "Mismatch of patches in specfile \n" "$sources" "$applied"
fi

read -r -d '' RSCA << EOR
  existing = "$existing".split("\n").sort
  sources = "$sources".split("\n").map { |e| e.split(':') }.flatten.reject { |e| e =~ /^Patch/ }.sort.map(&:strip).sort
  puts (existing == sources)
EOR

if [[ $(ruby -e "$RSCA") == "true" ]]; then
	echo "Patches sources match ✓"
else
	die "Mismatch of sources" "$existing" "$(echo "$sources" | cut -d' ' -f 2)"
fi

git_patches=$(git ls-files | grep ".patch")

read -r -d '' RSCB << EOR
  sources = "$git_patches".split("\n").sort
  existing = "$sources"
    .split("\n")
    .map { |e| e.split(':') }
    .flatten
    .reject { |e| e =~ /^Patch/ }
    .map(&:strip).sort
  puts (existing == sources)
EOR

if [[ $(ruby -e "$RSCB") == "true" ]]; then
	echo "Git patches are used ✓"
else
	die "Unused patches present in git" "$existing" "$(echo "$sources" | cut -d' ' -f 2)"
fi