Windshaft-cartodb/tools/show_style
2014-03-31 12:53:48 +02:00

149 lines
3.7 KiB
JavaScript
Executable File

#!/usr/bin/env node
var path = require('path');
var redis = require('redis');
var Step = require('step');
function usage(me, exitcode) {
console.log("Usage: " + me + " [--env <environment>] <username> [<tablename>|~<token>]");
process.exit(exitcode);
}
var node_path = process.argv.shift();
var script_path = process.argv.shift();
var basedir = path.dirname(script_path);
var me = path.basename(script_path);
var ENV = 'development.js';
var username, token;
var arg;
while ( arg = process.argv.shift() ) {
if ( arg == '--env' ) {
ENV = process.argv.shift();
}
else if ( ! username ) {
username = arg;
}
else if ( ! token ) {
token = arg;
}
else {
console.warn("Unused parameter " + arg);
}
}
if ( ! username ) usage(me, 1);
console.log("Using environment " + ENV);
global.environment = require('../config/environments/' + ENV);
// _after_ setting global.environment
var serverOptions = require('../lib/cartodb/server_options')();
var client;
var dbname;
Step(
function getClient() {
client = redis.createClient(serverOptions.redis.port, serverOptions.redis.host);
client.on('connect', this);
},
function getUserMeta(err) {
if ( err ) throw err;
client.select(5);
client.hgetall('rails:users:' + username, this);
},
function readDB(err, data) {
if ( err ) throw err;
if ( ! data )
throw new Error('Username ' + username + ' unknown by redis on port '
+ serverOptions.redis.port + ' (try CARTODB/script/restore_redis?)');
//console.log("Data:"); console.dir(data);
dbname = data['database_name'];
console.log("Database name for user " + username + ": " + dbname);
client.select(0);
return null;
},
function showTokens(err) {
if ( err ) throw err;
if ( token ) return null;
var next = this;
Step(
function getTokens() {
client.keys('map_style|' + dbname + '|*', this);
},
function showTokens(err, data) {
if (err) throw err;
if ( data ) console.log(data.join('\n'));
return null;
},
function showTokensFinish(err) {
next(err);
}
);
},
function showStyle(err) {
if ( err ) throw err;
if ( ! token ) return null;
var next = this;
Step(
function getStyle() {
client.get('map_style|' + dbname + '|' + token, this);
},
function showStyle(err, data) {
if ( err ) throw err;
if ( ! data ) {
throw new Error(token + ': no such map style known by redis on port '
+ serverOptions.redis.port);
}
//console.log("data: " + data);
var x=JSON.parse(data);
printMapnikStyle(x, this);
},
function showStyleFinish(err) {
next(err);
}
);
},
function finish(err) {
if ( err ) {
console.error(err.message)
process.exit(1);
}
process.exit(0);
}
);
function printMapnikStyle(x, callback) {
console.log('style: ' + x.style);
console.log('version: ' + x.version);
var grainstore = require(basedir + '/../node_modules/windshaft/node_modules/grainstore/lib/grainstore');
var mml_store = new grainstore.MMLStore(serverOptions.redis, serverOptions.grainstore);
var builderconfig = {dbname:dbname};
if ( token.match(/^~/) ) {
builderconfig.token = token.substring(1);
} else {
builderconfig.table = token;
}
var mml_builder;
Step(
function getBuilder() {
mml_builder = mml_store.mml_builder(builderconfig, this);
},
function getXML(err, builder) {
if ( err ) throw err;
mml_builder.toXML(this);
},
function showXML(err, xml) {
if ( err ) throw err;
console.log('- XML - ');
console.log(xml);
return null;
},
function finish(err) {
callback(err);
}
);
}