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if not modules then modules = { } end modules ['mtx-convert'] = {
version = 1.001,
comment = "companion to mtxrun.lua",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
do
graphics = graphics or { }
graphics.converters = graphics.converters or { }
local gsprogram = (os.platform == "windows" and "gswin32c") or "gs"
local gstemplate = "%s -q -sDEVICE=pdfwrite -dEPSCrop -dNOPAUSE -dNOCACHE -dBATCH -dAutoRotatePages=/None -dProcessColorModel=/DeviceCMYK -sOutputFile=%s %s -c quit"
function graphics.converters.epstopdf(inputpath,outputpath,epsname)
inputpath = inputpath or "."
outputpath = outputpath or "."
local oldname = file.join(inputpath,epsname)
local newname = file.join(outputpath,file.replacesuffix(epsname,"pdf"))
local et = lfs.attributes(oldname,"modification")
local pt = lfs.attributes(newname,"modification")
if not pt or et > pt then
dir.mkdirs(outputpath)
local tmpname = file.replacesuffix(newname,"tmp")
local command = string.format(gstemplate,gsprogram,tmpname,oldname)
os.execute(command)
os.remove(newname)
os.rename(tmpname,newname)
end
end
function graphics.converters.convertpath(inputpath,outputpath)
for name in lfs.dir(inputpath or ".") do
if name:find("%.$") then
-- skip . and ..
elseif name:find("%.eps$") then
graphics.converters.epstopdf(inputpath,outputpath, name)
elseif lfs.attributes(inputpath .. "/".. name,"mode") == "directory" then
graphics.converters.convertpath(inputpath .. "/".. name,outputpath .. "/".. name)
end
end
end
end
texmf.instance = instance -- we need to get rid of this / maybe current instance in global table
scripts = scripts or { }
scripts.convert = scripts.convert or { }
scripts.convert.delay = 5 * 60 -- 5 minutes
function scripts.convert.convertall()
local watch = environment.arguments.watch or false
local delay = environment.arguments.delay or scripts.convert.delay
local input = environment.arguments.inputpath or "."
local output = environment.arguments.outputpath or "."
while true do
graphics.converters.convertpath(input, output)
if watch then
os.sleep(delay)
else
break
end
end
end
banner = banner .. " | graphic conversion tools "
messages.help = [[
--convertall convert all graphics on path
--inputpath=string original graphics path
--outputpath=string converted graphics path
--watch watch folders
--delay time between sweeps
]]
input.verbose = true
if environment.argument("convertall") then
scripts.convert.convertall()
else
input.help(banner,messages.help)
end
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