rpmpatch.

#!/usr/bin/ruby

# usage: rpmpatch specfile [--localname name] files...
# example: rpmpatch kernel.spec --localname .mytest ../SOURCES/00*


require "optparse"

localname = nil

opts = OptionParser.new
opts.on("--localname NAME"){|v| localname = v }
opts.parse!(ARGV)

specfile = ARGV[0]
ARGV.shift
spec = File.read(specfile, :encoding => Encoding::UTF_8)

if localname != nil then
  bid = "# % define buildid .local\n"
  spec.gsub!(bid, "%define buildid #{localname}\n")
end

m = "Patch999999: linux-kernel-test.patch\n"
patches = ARGV

patchnum = 10000

spec.gsub!(m) {
  s = m
  s += "\n"
  for patch in patches
    s += "Patch#{patchnum += 1}: #{File.basename(patch)}\n"
  end
  s
}

apply = "ApplyOptionalPatch linux-kernel-test.patch\n"
spec.gsub!(apply) {
  s = apply
  s += "\n"
  for patch in patches
    s += "ApplyPatch #{File.basename(patch)}\n"
  end
  s
}

File.rename(specfile, specfile + ".old")
File.write(specfile, spec)

usage

% cd rpmbuild/SPECS
% rpmpatch kernel.spec --localname .mytest ../SOURCES/00*.patch