Rework LuCI build system

 * Rename subdirectories to their repective OpenWrt package names
 * Make each LuCI module its own standalone package
 * Deploy a shared luci.mk which is used by each module Makefile

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

1 files changed, 211 insertions, 0 deletions

diff --git a/modules/luci-mod-failsafe/luasrc/controller/failsafe/failsafe.lua b/modules/luci-mod-failsafe/luasrc/controller/failsafe/failsafe.lua
new file mode 100644
index 000000000..db4bda660
--- /dev/null
+++ b/modules/luci-mod-failsafe/luasrc/controller/failsafe/failsafe.lua
@@ -0,0 +1,211 @@
+--[[
+LuCI - Lua Configuration Interface
+
+Copyright 2008 Steven Barth <steven@midlink.org>
+Copyright 2008-2011 Jo-Philipp Wich <xm@subsignal.org>
+Copyright 2012 Daniel Golle <dgolle@allnet.de>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+$Id$
+]]--
+
+module("luci.controller.failsafe.failsafe", package.seeall)
+
+function index()
+	local root = node()
+	if not root.target then
+		root.target = alias("failsafe")
+		root.index = true
+	end
+
+	page          = node()
+	page.lock     = true
+	page.target   = alias("failsafe")
+	page.subindex = true
+	page.index    = false
+
+	page          = node("failsafe")
+	page.title    = _("Fail-safe")
+	page.target   = alias("failsafe", "flashops")
+	page.order    = 5
+	page.setuser  = "root"
+	page.setgroup = "root"
+	page.index    = true
+
+	entry({"failsafe", "flashops"}, call("action_flashops"), _("Flash Firmware"), 70).index = true
+	entry({"failsafe", "reboot"}, call("action_reboot"), _("Reboot"), 90)
+end
+
+function action_flashops()
+	local sys = require "luci.sys"
+	local fs  = require "luci.fs"
+
+	local upgrade_avail = nixio.fs.access("/lib/upgrade/platform.sh")
+	local reset_avail   = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
+
+	local image_tmp   = "/tmp/firmware.img"
+
+	local function image_supported()
+		-- XXX: yay...
+		return ( 0 == os.execute(
+			". /lib/functions.sh; " ..
+			"include /lib/upgrade; " ..
+			"platform_check_image %q >/dev/null"
+				% image_tmp
+		) )
+	end
+
+	local function image_checksum()
+		return (luci.sys.exec("md5sum %q" % image_tmp):match("^([^%s]+)"))
+	end
+
+	local function storage_size()
+		local size = 0
+		if nixio.fs.access("/proc/mtd") then
+			for l in io.lines("/proc/mtd") do
+				local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
+				if n == "linux" or n == "firmware" then
+					size = tonumber(s, 16)
+					break
+				end
+			end
+		elseif nixio.fs.access("/proc/partitions") then
+			for l in io.lines("/proc/partitions") do
+				local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
+				if b and n and not n:match('[0-9]') then
+					size = tonumber(b) * 1024
+					break
+				end
+			end
+		end
+		return size
+	end
+
+
+	local fp
+	luci.http.setfilehandler(
+		function(meta, chunk, eof)
+			if not fp then
+				if meta and meta.name == "image" then
+					fp = io.open(image_tmp, "w")
+				end
+			end
+			if chunk then
+				fp:write(chunk)
+			end
+			if eof then
+				fp:close()
+			end
+		end
+	)
+
+	if luci.http.formvalue("image") or luci.http.formvalue("step") then
+		--
+		-- Initiate firmware flash
+		--
+		local step = tonumber(luci.http.formvalue("step") or 1)
+		if step == 1 then
+			if image_supported() then
+				luci.template.render("failsafe/upgrade", {
+					checksum = image_checksum(),
+					storage  = storage_size(),
+					size     = nixio.fs.stat(image_tmp).size,
+					keep     = false
+				})
+			else
+				nixio.fs.unlink(image_tmp)
+				luci.template.render("failsafe/flashops", {
+					reset_avail   = reset_avail,
+					upgrade_avail = upgrade_avail,
+					image_invalid = true
+				})
+			end
+		--
+		-- Start sysupgrade flash
+		--
+		elseif step == 2 then
+			local keep = (luci.http.formvalue("keep") == "1") and "" or "-n"
+			luci.template.render("failsafe/applyreboot", {
+				title = luci.i18n.translate("Flashing..."),
+				msg   = luci.i18n.translate("The system is flashing now.<br /> DO NOT POWER OFF THE DEVICE!<br /> Wait a few minutes before you try to reconnect. It might be necessary to renew the address of your computer to reach the device again, depending on your settings."),
+				addr  = (#keep > 0) and "192.168.1.1" or nil
+			})
+			fork_exec("killall dropbear uhttpd; sleep 1; /sbin/sysupgrade %s %q" %{ keep, image_tmp })
+		end
+	else
+		--
+		-- Overview
+		--
+		luci.template.render("failsafe/flashops", {
+			reset_avail   = reset_avail,
+			upgrade_avail = upgrade_avail
+		})
+	end
+end
+
+function action_reboot()
+	local reboot = luci.http.formvalue("reboot")
+	luci.template.render("failsafe/reboot", {reboot=reboot})
+	if reboot then
+		luci.sys.reboot()
+	end
+end
+
+function fork_exec(command)
+	local pid = nixio.fork()
+	if pid > 0 then
+		return
+	elseif pid == 0 then
+		-- change to root dir
+		nixio.chdir("/")
+
+		-- patch stdin, out, err to /dev/null
+		local null = nixio.open("/dev/null", "w+")
+		if null then
+			nixio.dup(null, nixio.stderr)
+			nixio.dup(null, nixio.stdout)
+			nixio.dup(null, nixio.stdin)
+			if null:fileno() > 2 then
+				null:close()
+			end
+		end
+
+		-- replace with target command
+		nixio.exec("/bin/sh", "-c", command)
+	end
+end
+
+function ltn12_popen(command)
+
+	local fdi, fdo = nixio.pipe()
+	local pid = nixio.fork()
+
+	if pid > 0 then
+		fdo:close()
+		local close
+		return function()
+			local buffer = fdi:read(2048)
+			local wpid, stat = nixio.waitpid(pid, "nohang")
+			if not close and wpid and stat == "exited" then
+				close = true
+			end
+
+			if buffer and #buffer > 0 then
+				return buffer
+			elseif close then
+				fdi:close()
+				return nil
+			end
+		end
+	elseif pid == 0 then
+		nixio.dup(fdo, nixio.stdout)
+		fdi:close()
+		fdo:close()
+		nixio.exec("/bin/sh", "-c", command)
+	end
+end