build.lua

#!/usr/bin/env texlua


module = "pdfcrop"

textfiles = {"README.md","LICENCE"}
sourcefiles = {"pdfcrop.pl"}
installfiles={"*.pl"}
scriptfiles={"*.pl"}
ctanreadme ="README.md"
 
packtdszip  = false


function update_tag(file,content,tagname,tagdate)

local tagpattern="(%d%d%d%d[-/]%d%d[-/]%d%d) v(%d+[.])(%d+)"
local oldv,newv
if tagname == 'auto' then
  local i,j,olddate,a,b
  i,j,olddate,a,b= string.find(content, tagpattern)
  if i == nil then
    print('OLD TAG NOT FOUND')
    return content
  else
    print ('FOUND: ' .. olddate .. ' v' .. a .. b )
    oldv = olddate .. ' v' .. a .. b
    newv = tagdate .. ' v'  .. a .. math.floor(b + 1)
    print('USING OLD TAG: ' .. oldv)
    print('USING NEW TAG: ' .. newv)
    local oldpattern = string.gsub(oldv,"[-/]", "[-/]")
    content=string.gsub(content,oldpattern,newv)
    return content
  end
else
  error("only automatic tagging supported")
end

end