X-Git-Url: https://git.openstreetmap.org./chef.git/blobdiff_plain/3a4b1c2078cd515e93a5f1bf8967f380fbd1646f..4b779db7ab4f38f24daed39d1e67acfa9905b000:/cookbooks/tile/files/default/ruby/expire.rb?ds=inline diff --git a/cookbooks/tile/files/default/ruby/expire.rb b/cookbooks/tile/files/default/ruby/expire.rb index 4c9d1a31b..f129e3510 100755 --- a/cookbooks/tile/files/default/ruby/expire.rb +++ b/cookbooks/tile/files/default/ruby/expire.rb @@ -1,11 +1,11 @@ #!/usr/bin/ruby -require 'rubygems' -require 'proj4' -require 'xml/libxml' -require 'set' -require 'time' -require 'mmap' +require "rubygems" +require "proj4" +require "xml/libxml" +require "set" +require "time" +require "mmap" module Expire # projection object to go from latlon -> spherical mercator @@ -24,7 +24,7 @@ module Expire NODE_CACHE_FILE = "/store/database/nodes" # turns a spherical mercator coord into a tile coord - def Expire.tile_from_merc(point, zoom) + def self.tile_from_merc(point, zoom) # renormalise into unit space [0,1] point.x = 0.5 + point.x / SIZE point.y = 0.5 - point.y / SIZE @@ -36,34 +36,34 @@ module Expire end # turns a latlon -> tile x,y given a zoom level - def Expire.tile_from_latlon(latlon, zoom) + def self.tile_from_latlon(latlon, zoom) # first convert to spherical mercator point = PROJ.forward(latlon) tile_from_merc(point, zoom) end # this must match the definition of xyz_to_meta in mod_tile - def Expire.xyz_to_meta(x, y, z) + def self.xyz_to_meta(x, y, z) # mask off the final few bits x &= ~(METATILE - 1) y &= ~(METATILE - 1) # generate the path - hash_path = (0..4).collect { |i| + hash_path = (0..4).collect do |i| (((x >> 4 * i) & 0xf) << 4) | ((y >> 4 * i) & 0xf) - }.reverse.join('/') - z.to_s + '/' + hash_path + ".meta" + end.reverse.join("/") + z.to_s + "/" + hash_path + ".meta" end # time to reset to, some very stupidly early time, before OSM started EXPIRY_TIME = Time.parse("2000-01-01 00:00:00") # expire the meta tile by setting the modified time back - def Expire.expire_meta(meta) + def self.expire_meta(meta) puts "Expiring #{meta}" File.utime(EXPIRY_TIME, EXPIRY_TIME, meta) end - def Expire.expire(change_file, min_zoom, max_zoom, tile_dirs) + def self.expire(change_file, min_zoom, max_zoom, tile_dirs) do_expire(change_file, min_zoom, max_zoom) do |set| new_set = Set.new meta_set = Set.new @@ -93,26 +93,26 @@ module Expire end end - def Expire.do_expire(change_file, min_zoom, max_zoom, &_) + def self.do_expire(change_file, min_zoom, max_zoom, &_) # read in the osm change file doc = XML::Document.file(change_file) # hash map to contain all the nodes - nodes = Hash.new + nodes = {} # we put all the nodes into the hash, as it doesn't matter whether the node was # added, deleted or modified - the tile will need updating anyway. - doc.find('//node').each do |node| - lat = node['lat'].to_f + doc.find("//node").each do |node| + lat = node["lat"].to_f if lat < -85 lat = -85 end if lat > 85 lat = 85 end - point = Proj4::Point.new(Math::PI * node['lon'].to_f / 180, + point = Proj4::Point.new(Math::PI * node["lon"].to_f / 180, Math::PI * lat / 180) - nodes[node['id'].to_i] = tile_from_latlon(point, max_zoom) + nodes[node["id"].to_i] = tile_from_latlon(point, max_zoom) end # now we look for all the ways that have changed and put all of their nodes into @@ -124,15 +124,16 @@ module Expire # itself deleted and the coverage of the point set isn't enough to encompass the # change. node_cache = NodeCache.new(NODE_CACHE_FILE) - doc.find('//way/nd').each do |node| - node_id = node['ref'].to_i - unless nodes.include? node_id - # this is a node referenced but not added, modified or deleted, so it should - # still be in the node cache. - if entry = node_cache[node_id] - point = Proj4::Point.new(entry.lon, entry.lat) - nodes[node_id] = tile_from_merc(point, max_zoom) - end + doc.find("//way/nd").each do |node| + node_id = node["ref"].to_i + + next if nodes.include? node_id + + # this is a node referenced but not added, modified or deleted, so it should + # still be in the node cache. + if (entry = node_cache[node_id]) + point = Proj4::Point.new(entry.lon, entry.lat) + nodes[node_id] = tile_from_merc(point, max_zoom) end end