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if not modules then modules = { } end modules ['data-crl'] = {
version = 1.001,
comment = "companion to luat-lib.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- this one is replaced by data-sch.lua --
local gsub = string.gsub
local resolvers = resolvers
local finders, openers, loaders = resolvers.finders, resolvers.openers, resolvers.loaders
resolvers.curl = resolvers.curl or { }
local curl = resolvers.curl
local cached = { }
local function runcurl(specification)
local original = specification.original
-- local scheme = specification.scheme
local cleanname = gsub(original,"[^%a%d%.]+","-")
local cachename = caches.setfirstwritablefile(cleanname,"curl")
if not cached[original] then
if not io.exists(cachename) then
cached[original] = cachename
local command = "curl --silent --create-dirs --output " .. cachename .. " " .. original
os.execute(command)
end
if io.exists(cachename) then
cached[original] = cachename
else
cached[original] = ""
end
end
return cached[original]
end
-- old code: we could be cleaner using specification (see schemes)
local function finder(specification,filetype)
return resolvers.methodhandler("finders",runcurl(specification),filetype)
end
local opener = openers.file
local loader = loaders.file
local function install(scheme)
finders[scheme] = finder
openers[scheme] = opener
loaders[scheme] = loader
end
resolvers.curl.install = install
install('http')
install('https')
install('ftp')
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