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apk = require("apk")
local M = {}
--"http://mirrors.kernel.org/archlinux/"
local url_base="http://ftp.lysator.liu.se/pub/archlinux/"
local upstream_repos = {
"core/os/i686/core.db.tar.gz",
"extra/os/i686/extra.db.tar.gz",
"community/os/i686/community.db.tar.gz",
}
local db = {}
local pkgmap = {
["freetype"] = "freetype2",
["gmp5"] = "gmp",
["gstreamer" ] = "gstreamer0.10",
["gstreamer1"] = "gstreamer",
["gtk+2.0"] = "gtk2",
["mpfr3"] = "mpfr",
["python"] = "python2",
["mpc1" ] = "libmpc",
[ "libmpc" ] = "",
["glib" ] = "glib2",
["libnl3" ] = "libnl",
["libnl" ] = "",
}
local version_regex = {
["%.[pP](%d+)$"] = "_p%1",
["([^_])p(%d+)$"] = "%1_p%2",
["%.([a-z])$"] = "_%1",
["(%d)[Rr][Cc](%d+)"] = "%1_rc%2",
["(%d)b(%d+)$"] = "%1_beta%2",
}
local function fix_version(ver)
local search, replace
local str = ver
for search, replace in pairs(version_regex) do
str = string.gsub(str, search, replace)
end
return str
end
local function add_version(repodb, pkgname, pkgver, pkgrel)
if pkgname == nil then
return
end
local name = pkgmap[pkgname]
if name == nil then
name = pkgname
end
if db[name] == nil then
db[name] = {}
end
table.insert(db[name], {
repo = repodb,
origver=pkgver,
pkgver=fix_version(pkgver),
pkgrel=pkgrel,
pkgname=pkgname,
})
end
local function read_upstream_repodb(repodb)
local f
local url = url_base..repodb
local dbfile = string.gsub(repodb, ".*/", "")
local line
-- os.execute("wget "..url)
-- local f = io.popen("tar -ztf "..dbfile.." 2>/dev/null")
local f = io.popen("curl --silent "..url.." | tar -zt 2>/dev/null")
local pkgdb = {}
for line in f:lines() do
local pkgname, pkgver, pkgrel = string.match(line, "^(.*)-([0-9]+.*)-([0-9]+)/$")
add_version(repodb, pkgname, pkgver, pkgrel)
end
f:close()
end
local function is_newer(arch, pkgver)
if not apk.version_is_less(pkgver, arch) then
return nil
end
return arch
-- print(pkgname.."-"..arch.pkgver.." (current: "..pkgver..")")
end
local function find_newer(self)
local pkgname = self.pkg.pkgname
local pkgver = self.pkg.pkgver
local i, p, newest
if self.db[pkgname] == nil then
return
end
newest = "0"
for i, p in pairs(self.db[pkgname]) do
if apk.version_is_less(newest, p.pkgver) then
newest = p.pkgver
end
end
if is_newer(newest, pkgver) then
return newest
end
return nil
end
local function exists(self, pkgname)
return self.db[pkgname] ~= nil
end
local repos_initialized = false
local function init_repos()
if repos_initialized then
return db
end
for i,repo in pairs(upstream_repos) do
io.stderr:write("Reading upstream "..repo.."\n")
read_upstream_repodb(repo)
end
repos_initialized = true
return db
end
function M.init(pkg)
init_repos()
if db[pkg.pkgname] == nil then
return nil
end
return {
provider_name = "archlinux",
db = db,
find_newer = find_newer,
pkg = pkg
}
end
return M
|
