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#!/usr/bin/lua
-- those should be read from some config file
aportsdir = "~/aports"
repos = { "main", "testing" }
function split(str)
local t = {}
if (str == nil) then
return nil
end
for e in string.gmatch(str, "%S+") do
table.insert(t, e)
end
return t
end
function split_apkbuild(line)
local r = {}
local dir, pkgname, pkgver, pkgrel, depends, makedepends, subpackages, source = string.match(line, "([^|]*)|([^|]*)|([^|]*)|([^|]*)|([^|]*)|([^|]*)|([^|]*)")
r.dir = dir
r.pkgname = pkgname
r.pkgver = pkgver
r.pkgrel = pkgrel
r.depends = split(depends)
r.makedepends = split(makedepends)
r.subpackages = split(subpackages)
r.source = split(source)
return r
end
-- parse the APKBUILDs and return a list
function parse_apkbuilds(dir, repos)
local i,v, p
local str=""
if repos == nil then
return
end
--expand repos
for i,v in ipairs(repos) do
str = str..dir.."/"..v.."/*/APKBUILD "
end
local p = io.popen([[
for i in ]]..str..[[; do
pkgname=
pkgver=
pkgrel=
depends=
makedepends=
subpackages=
source=
dir="${i%/APKBUILD}"
cd "$dir"
. ./APKBUILD
echo $dir\|$pkgname\|$pkgver\|$pkgrel\|$depends\|$makedepends\|$subpackages\|$source
done
]])
return function()
local line = p:read("*line")
if line == nil then
p:close()
return nil
end
return split_apkbuild(line)
end
end
function target_packages(pkgdb, pkgname)
local i,v
local t = {}
for i,v in ipairs(pkgdb[pkgname]) do
table.insert(t, pkgname.."-"..v.pkgver.."-r"..v.pkgrel..".apk")
end
return t
end
function list_depends( pkg, pkgdb )
local dl = {}
local s
if pkg and not pkg.added then
pkg.added = true
if pkg.depends then
for i,v in ipairs(pkg.depends) do
--print("v = <"..v..">")
s = list_depends( pkgdb[v], pkgdb )
if #s > 0 then
dl[#dl + 1] = s
end
end
end
if pkg.makedepends then
for i,v in ipairs(pkg.makedepends) do
--print("v = {"..v.."}")
s = list_depends( pkgdb[v], pkgdb )
if #s > 0 then
dl[#dl + 1] = s
end
end
end
dl[#dl + 1] = pkg.pkgname
end
s = table.concat(dl," ")
--print("s = ["..s.."]")
return s
end
function init_apkdb(aportsdir, repos)
local pkgdb = {}
local revdeps = {}
local a
for a in parse_apkbuilds(aportsdir, repos) do
-- io.write(a.pkgname.." "..a.pkgver.."\t"..a.dir.."\n")
if pkgdb[a.pkgname] == nil then
pkgdb[a.pkgname] = {}
end
--table.insert(pkgdb[a.pkgname], a)
pkgdb[a.pkgname] = a
--print("pk "..a.pkgname.." is a "..type(a).." ("..pkgdb[a.pkgname].pkgname..")")
-- add subpackages to package db
local k,v
for k,v in ipairs(a.subpackages) do
if pkgdb[v] == nil then
pkgdb[v] = {}
end
--table.insert(pkgdb[v], a)
pkgdb[v] = a
end
-- add to reverse dependencies
for k,v in ipairs(a.makedepends) do
if revdeps[v] == nil then
revdeps[v] = {}
end
table.insert(revdeps[v], a)
end
end
return pkgdb, revdeps
end
-- PKGBUILD import
function split_pkgbuild(line)
local r = {}
local pkgname, pkgver = string.match(line, "([^|]*)|([^|]*)")
r.pkgname = pkgname
r.pkgver = pkgver
return r
end
function parse_pkgbuilds(dir, repos)
local i,v, p
local str=""
if repos == nil then
return
end
--expand repos
for i,v in ipairs(repos) do
str = str..dir.."/"..v.."/*/PKGBUILD "
end
local p = io.popen([[/bin/bash -c '
for i in ]]..str..[[; do
pkgname=
pkgver=
source $i
echo $pkgname\|$pkgver
done
' 2>/dev/null
]])
return function()
local line = p:read("*line")
if line == nil then
p:close()
return nil
end
return split_pkgbuild(line)
end
end
function init_absdb(dir, repos)
local p
local db = {}
for p in parse_pkgbuilds(dir, repos) do
if db[p.pkgname] == nil then
db[p.pkgname] = {}
end
table.insert(db[p.pkgname], p.pkgver)
end
return db
end
-- Applets -----------------------
applet = {}
function applet.revdep(arg)
local pkg = arg[2]
if pkg == nil then
-- usage?
return nil
end
local apkdb, rev = init_apkdb(aportsdir, repos)
local _,p
for _,p in ipairs(rev[pkg] or {}) do
print(p.pkgname)
end
end
--absdb = init_absdb("/var/abs", { "core", "extra", "community" })
function applet.deplist(arg)
local apkdb, rev = init_apkdb(arg[2],{ arg[3] })
local deplist = {}
local nm,pk
for nm,pk in pairs(apkdb) do
local dl
--print("pk "..nm.." is a "..type(pk).." ("..apkdb[nm].pkgname..")")
--deplist[#deplist + 1] = "***"
dl = list_depends(pk,apkdb)
-- print("deplist for "..nm..": "..deplist)
if #dl > 0 then
deplist[#deplist + 1] = dl
end
end
print(table.concat(deplist," "))
end
cmd = arg[1]
if cmd == nil then
-- usage
io.stderr:write( "no command given\n" );
return
end
if type(applet[cmd]) == "function" then
applet[cmd](arg)
else
io.stderr:write(cmd..": invalid applet\n")
end
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