decentralized-internet
Version:
An NPM library of programs to create decentralized web and distributed computing projects
101 lines (82 loc) • 3.55 kB
JavaScript
var request = require('request');
var fs = require('fs');
var Promise = require('bluebird');
var path = require('path');
module.exports = function(dburl, viewsdir){
const createDB = function(url){
return new Promise(function(resolve, reject){
request.put(url, function(err, res, body){
if(err){
reject(err.message);
}else{
try{
if(JSON.parse(body).error === "not_found"){
request.put(url, function(err, res, body){
resolve(JSON.parse(body));
});
}else{
resolve(JSON.parse(body));
}
}catch(e){
console.error(url);
console.error(e);
reject(e);
}
}
});
});
}
const updateDocuments = function(url, viewsdir){
var fileviews = fs.readdirSync(viewsdir);
var testView = function(file){
return new Promise(function(resolve, reject){
try{
if(file.indexOf(".json") === -1) reject(file);
fs.readFile(path.join(viewsdir, file), function (err, data) {
if (err) throw err;
var designdoc = JSON.parse(data);
var options = {
uri: url + "/" + designdoc._id
}
request(options, function(err, res, body){
var couchdesigndoc = JSON.parse(body);
if(JSON.stringify(designdoc.views) !== JSON.stringify(couchdesigndoc.views)){
console.info("Deploying design document: ", designdoc);
var uri = url + "/" + designdoc._id;
if(couchdesigndoc._rev){
designdoc._rev = couchdesigndoc._rev;
uri += "?rev="+designdoc._rev;
}
var options = {
uri : uri,
method : 'PUT',
json : designdoc
}
request(options, function(err, res, body){
if(err){
reject(err.message);
}else{
resolve(body);
}
});
}else{
resolve({
error: "No changes in document.",
couchDB: url,
view: viewsdir+file
});
}
});
});
}catch(e){
reject(e);
}
});
}
return Promise.map(fileviews, testView);
}
return createDB(dburl)
.then(function(result){
return updateDocuments(dburl, viewsdir);
});
}