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, 246 insertions, 0 deletions

diff --git a/modules/luci-mod-admin-mini/luasrc/controller/mini/system.lua b/modules/luci-mod-admin-mini/luasrc/controller/mini/system.lua
new file mode 100644
index 000000000..71b5b6351
--- /dev/null
+++ b/modules/luci-mod-admin-mini/luasrc/controller/mini/system.lua
@@ -0,0 +1,246 @@
+--[[
+LuCI - Lua Configuration Interface
+
+Copyright 2008 Steven Barth <steven@midlink.org>
+Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
+
+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.mini.system", package.seeall)
+
+function index()
+	entry({"mini", "system"}, alias("mini", "system", "index"), _("System"), 40).index = true
+	entry({"mini", "system", "index"}, cbi("mini/system", {autoapply=true}), _("General"), 1)
+	entry({"mini", "system", "passwd"}, form("mini/passwd"), _("Admin Password"), 10)
+	entry({"mini", "system", "backup"}, call("action_backup"), _("Backup / Restore"), 80)
+	entry({"mini", "system", "upgrade"}, call("action_upgrade"), _("Flash Firmware"), 90)
+	entry({"mini", "system", "reboot"}, call("action_reboot"), _("Reboot"), 100)
+end
+
+function action_backup()
+	local reset_avail = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
+	local restore_cmd = "gunzip | tar -xC/ >/dev/null 2>&1"
+	local backup_cmd  = "tar -c %s | gzip 2>/dev/null"
+	
+	local restore_fpi 
+	luci.http.setfilehandler(
+		function(meta, chunk, eof)
+			if not restore_fpi then
+				restore_fpi = io.popen(restore_cmd, "w")
+			end
+			if chunk then
+				restore_fpi:write(chunk)
+			end
+			if eof then
+				restore_fpi:close()
+			end
+		end
+	)
+		  
+	local upload = luci.http.formvalue("archive")
+	local backup = luci.http.formvalue("backup")
+	local reset  = reset_avail and luci.http.formvalue("reset")
+	
+	if upload and #upload > 0 then
+		luci.template.render("mini/applyreboot")
+		luci.sys.reboot()
+	elseif backup then
+		local reader = ltn12_popen(backup_cmd:format(_keep_pattern()))
+		luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
+			luci.sys.hostname(), os.date("%Y-%m-%d")})
+		luci.http.prepare_content("application/x-targz")
+		luci.ltn12.pump.all(reader, luci.http.write)
+	elseif reset then
+		luci.template.render("mini/applyreboot")
+		luci.util.exec("mtd -r erase rootfs_data")
+	else
+		luci.template.render("mini/backup", {reset_avail = reset_avail})
+	end
+end
+
+function action_reboot()
+	local reboot = luci.http.formvalue("reboot")
+	luci.template.render("mini/reboot", {reboot=reboot})
+	if reboot then
+		luci.sys.reboot()
+	end
+end
+
+function action_upgrade()
+	require("luci.model.uci")
+
+	local tmpfile = "/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"
+				% tmpfile
+		) )
+	end
+	
+	local function image_checksum()
+		return (luci.sys.exec("md5sum %q" % tmpfile):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" 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
+
+
+	-- Install upload handler
+	local file
+	luci.http.setfilehandler(
+		function(meta, chunk, eof)
+			if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
+				file = io.open(tmpfile, "w")
+			end
+			if file and chunk then
+				file:write(chunk)
+			end
+			if file and eof then
+				file:close()
+			end
+		end
+	)
+
+
+	-- Determine state
+	local keep_avail   = true
+	local step         = tonumber(luci.http.formvalue("step") or 1)
+	local has_image    = nixio.fs.access(tmpfile)
+	local has_support  = image_supported()
+	local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
+	local has_upload   = luci.http.formvalue("image")
+	
+	-- This does the actual flashing which is invoked inside an iframe
+	-- so don't produce meaningful errors here because the the 
+	-- previous pages should arrange the stuff as required.
+	if step == 4 then
+		if has_platform and has_image and has_support then
+			-- Mimetype text/plain
+			luci.http.prepare_content("text/plain")
+			luci.http.write("Starting luci-flash...\n")
+
+			-- Now invoke sysupgrade
+			local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
+			local flash = ltn12_popen("/sbin/luci-flash %s %q" %{
+				keepcfg and "-k %q" % _keep_pattern() or "", tmpfile
+			})
+
+			luci.ltn12.pump.all(flash, luci.http.write)
+
+			-- Make sure the device is rebooted
+			luci.sys.reboot()
+		end
+
+
+	--
+	-- This is step 1-3, which does the user interaction and
+	-- image upload.
+	--
+
+	-- Step 1: file upload, error on unsupported image format
+	elseif not has_image or not has_support or step == 1 then
+		-- If there is an image but user has requested step 1
+		-- or type is not supported, then remove it.
+		if has_image then
+			nixio.fs.unlink(tmpfile)
+		end
+			
+		luci.template.render("mini/upgrade", {
+			step=1,
+			bad_image=(has_image and not has_support or false),
+			keepavail=keep_avail,
+			supported=has_platform
+		} )
+
+	-- Step 2: present uploaded file, show checksum, confirmation
+	elseif step == 2 then
+		luci.template.render("mini/upgrade", {
+			step=2,
+			checksum=image_checksum(),
+			filesize=nixio.fs.stat(tmpfile).size,
+			flashsize=storage_size(),
+			keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
+		} )
+	
+	-- Step 3: load iframe which calls the actual flash procedure
+	elseif step == 3 then
+		luci.template.render("mini/upgrade", {
+			step=3,
+			keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
+		} )
+	end	
+end
+
+function _keep_pattern()
+	local kpattern = ""
+	local files = luci.model.uci.cursor():get_all("luci", "flash_keep")
+	if files then
+		kpattern = ""
+		for k, v in pairs(files) do
+			if k:sub(1,1) ~= "." and nixio.fs.glob(v)() then
+				kpattern = kpattern .. " " ..  v
+			end
+		end
+	end
+	return kpattern
+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