added the pkgman package manager library

lib/download.lua

@@ -0,0 +1,123 @@
+local net = require "minitel"
+local dl = {}
+dl.protos = {}
+
+-- Stolen from the old exec/fget
+local function parseURL(url)
+ local proto,addr = url:match("(.-)://(.+)")
+ addr = addr or url
+ local hp, path = addr:match("(.-)(/.*)")
+ hp, path = hp or addr, path or "/"
+ local host, port = hp:match("(.+):(.+)")
+ host = host or hp
+ return proto, host, port, path
+end
+
+function dl.protos.fget(host, optPort, path, dest) -- string string string number -- boolean -- Downloads path from host (on optPort or 70), printing the directory listing, or saving the file to dest.
+ local socket = assert(net.open(host, optPort or 70))
+ socket:write(string.format("t%s\n", path))
+ local status
+ repeat
+  coroutine.yield()
+  status = socket:read(1)
+ until status ~= ""
+
+ if status == "d" then
+  io.write("Directory Listing:\n")
+  local tmp = ""
+  repeat
+   coroutine.yield()
+   tmp = socket:read("*a")
+   
+   io.write(tmp)
+  until socket.state == "closed" and tmp == ""
+
+  return true
+ elseif status == "y" then
+  if not dest then
+   error("Must provide local path to save remote files.")
+  end
+  
+  io.write(string.format("Saving %s to %s...\n", path, dest))
+  local f = assert(io.open(dest, "wb"))
+  local tmp = ""
+  repeat
+   coroutine.yield()
+   tmp = socket:read("*a")
+   
+   f:write(tmp)
+  until socket.state == "closed" and tmp == ""
+
+  f:close()
+  print("Done.")
+  
+  return true
+ else
+  local err, tmp = "", ""
+  repeat
+   coroutine.yield()
+   tmp = socket:read("*a")
+
+   err = err .. tmp
+  until socket.state == "closed" and tmp == ""
+  
+  error(string.format("Got error from remote host: %s", err))
+ end
+end
+
+function dl.protos.http(host, optPort, path, dest, url) -- string string string number -- boolean -- Downloads *url* to *dest* via the internet card, if available.
+ if not component.list("internet")() then
+  print("Internet card unavailable, falling back to proxy.")
+  local proto,host,sPort,path = parseURL(url)
+  local proxy = os.getenv(proto:upper().."_PROXY")
+  if not proxy and fs.exists("/boot/cfg/"..proto.."_proxy") then
+   local f = io.open("/boot/cfg/"..proto.."_proxy","rb")
+   proxy = f:read()
+   f:close()
+  end
+  if not proxy then error("No internet card or HTTP(S) proxy available") end
+  print("Proxy found: "..proxy)
+  if optPort then host=string.format("%s:%i",host,optPort) end
+  return dl.wget(string.format("%s/%s%s",proxy,host,path),dest)
+ end
+ if not dest then
+  error("Must provide local path to save remote files.")
+ end
+ local R,r=component.invoke(component.list("internet")(),"request",url)
+ if not R then error(r) end
+ repeat
+  coroutine.yield()
+ until R.finishConnect()
+ local code, message, headers = R.response()
+ if code > 299 or code < 200 then
+  return false, code, message
+ end
+ local f=io.open(dest,"wb")
+ if not f then error("Unable to open file "..dest) end
+ io.write(string.format("Saving %s to %s...\n", url, dest))
+ repeat
+  coroutine.yield()
+  ns = R.read(2048)
+  f:write(ns or "")
+ until not ns
+ f:close()
+ print("Done.")
+ return true
+end
+dl.protos.https = dl.protos.http
+
+function dl.wget(remotePath, dest) -- string string -- -- Downloads from remote *remotePath* to *dest*
+ local proto, host, sPort, path = parseURL(remotePath)
+ if dl.protos[proto] then
+  local port
+  if sPort then
+   port = tonumber(sPort)
+  end
+  
+  dl.protos[proto](host, port, path, dest, remotePath)
+ else
+  error("Unsupported protocol: " .. tostring(proto))
+ end
+end
+
+return setmetatable(dl,{__call=function(_,path,dest) return dl.wget(path,dest) end})

lib/pkgman.lua

@@ -0,0 +1,152 @@
+local serial = require "serialization"
+local dl = require "download"
+local pkg = {}
+pkg.cfgPath = "/boot/cfg/pkg"
+pkg.sourcePath = pkg.cfgPath .. "/sources.cfg"
+pkg.installedPath = pkg.cfgPath .. "/installed.cfg"
+
+local function getSources()
+ local f = io.open(pkg.sourcePath,"rb")
+ if not f then return {} end
+ local c = f:read("*a")
+ f:close()
+ return serial.unserialize(c)
+end
+local function saveSources(t)
+ fs.makeDirectory(pkg.cfgPath)
+ local f = io.open(pkg.sourcePath,"wb")
+ f:write(serial.serialize(t))
+ f:close()
+end
+
+local function getInstalled()
+ local f = io.open(pkg.installedPath,"rb")
+ if not f then return {} end
+ local c = f:read("*a")
+ f:close()
+ return serial.unserialize(c)
+end
+local function saveInstalled(t)
+ fs.makeDirectory(pkg.cfgPath)
+ local f = io.open(pkg.installedPath,"wb")
+ if not f then return false end
+ f:write(serial.serialize(t))
+ f:close()
+end
+
+local function getRepoMeta(repo)
+ if not getSources()[repo].cache or not fs.exists("/boot/cfg/pkg/repo-"..repo..".cfg") then
+  dl(getSources()[repo].path.."/packages.cfg","/boot/cfg/pkg/repo-"..repo..".cfg")
+ end
+ local f = io.open("/boot/cfg/pkg/repo-"..repo..".cfg","rb")
+ local rt = serial.unserialize(f:read("*a"))
+ f:close()
+ if not getSources()[repo].cache then
+  fs.remove("/boot/cfg/pkg/repo-"..repo..".cfg")
+ end
+ return rt
+end
+
+local function activatePackage(path,compressed)
+ require("pkgfs").add(path,compressed)
+end
+local function deactivatePackage(path)
+ require("pkgfs").remove(path)
+end
+
+function pkg.addRepo(name,path,cache) -- string string boolean -- boolean -- Adds a repository, referred to as *name*, to the list of package sources, with the remote path *path*. If *cache* is set, keep a local copy of the repository index.
+ local sources = getSources()
+ sources[name] = {path=path,cache=cache,name=name}
+ saveSources(sources)
+end
+
+function pkg.delRepo(name) -- string -- boolean -- Removes a repository from the list of repositories.
+ local sources = getSources()
+ sources[name] = nil
+ saveSources(sources)
+end
+
+function pkg.update() -- Re-download cached repository indexes.
+ for repo,meta in pairs(getSources()) do
+  fs.remove("/boot/cfg/pkg/repo-"..repo..".cfg")
+  if meta.cache then
+   getRepoMeta(repo)
+  end
+ end
+end
+
+function pkg.list(filter) -- string -- -- Print a list of available packages matching *filter*.
+ filter = filter or ""
+ local pkglist = {}
+ for repo,_ in pairs(getSources()) do
+  for pkg,meta in pairs(getRepoMeta(repo)) do
+   if pkg:find(filter) or (pkg.meta or ""):find(filter) then
+    meta.repo = repo
+    pkglist[pkg] = meta
+   end
+  end
+ end
+ for k,v in pairs(pkglist) do
+  print(string.format("%s/%s\n %s",v.repo,k,v.description))
+ end
+end
+
+function pkg.getMeta(pkgname) -- string -- table -- Returns the metadata for a the package specified in *pkgname*.
+ print("Finding package "..pkgname)
+ for repo,info in pairs(getSources()) do
+  local pkg = getRepoMeta(repo)[pkgname]
+  if pkg then
+   print("Package "..pkgname.." located in repo "..repo.." at "..info.path)
+   pkg.repository = info
+   return pkg
+  end
+ end
+end
+
+function pkg.get(pkgname,auto) -- string boolean -- boolean -- Downloads and mounts a package, identified as *pkgname*, onto the pkgfs.
+ local pkginfo = pkg.getMeta(pkgname)
+ if not pkginfo then error("unable to locate package "..pkgname) end
+ pkginfo.manual = not auto
+ fs.makeDirectory("/boot/pkg")
+ for k,v in ipairs(pkginfo.dependencies or {}) do
+  if not getInstalled()[v] then
+   pkg.get(v)
+  end
+ end
+ dl(pkginfo.repository.path.."/"..pkginfo.filename,"/boot/pkg/"..pkginfo.filename)
+ local installed = getInstalled()
+ installed[pkgname] = pkginfo
+ saveInstalled(installed)
+ pcall(activatePackage,"/boot/pkg/"..pkginfo.filename,pkginfo.compressed)
+ return true
+end
+
+function pkg.upgrade(force) -- boolean -- boolean -- Upgrades all packages on the system to the current version stored in the relevant repository. If *force* is set, re-download all packages.
+ pkg.update()
+ fs.makeDirectory("/boot/pkg")
+ local installed = getInstalled()
+ for repo,info in pairs(getSources()) do
+  for pkgname,pkg in pairs(getRepoMeta(repo)) do
+   if pkg.version ~= installed[pkgname].version or force then
+    dl(info.path.."/"..pkg.filename,"/boot/pkg/"..pkg.filename)
+    installed[pkgname] = pkg
+    pcall(activatePackage,"/boot/pkg/"..pkg.filename,pkg.compressed)
+    return true
+   end
+  end
+ end
+ saveInstalled(installed)
+end
+
+function pkg.remove(pkgname) -- string -- boolean -- Remove the package *pkgname* from the pkgfs and package directory.
+ local installed = getInstalled()
+ local pkginfo = installed[pkgname]
+ if not pkginfo then error(pkgname .." not installed") end
+ pcall(deactivatePackage,"/boot/pkg/"..pkginfo.filename)
+ fs.remove("/boot/pkg/"..pkginfo.filename)
+ installed[pkgname] = nil
+ saveInstalled(installed)
+ return true
+end
+
+return pkg

service/fserv.lua

@@ -63,6 +63,7 @@ local function httpHandler(socket,rtype,path)
  if code < 200 or code > 299 then
   socket:write(string.format("f%d\n%s",code,message))
  else
+  socket:write("y")
   local data = ""
   repeat
    coroutine.yield()