├── .gitignore ├── .jshintrc ├── .npmignore ├── .travis.yml ├── LICENSE ├── README.md ├── bin ├── dev-server.js ├── es3ify.js ├── run-test.sh └── test-browser.js ├── bower.json ├── dist ├── pouchdb.replication-stream.js └── pouchdb.replication-stream.min.js ├── lib ├── index.js ├── pouch-utils.js ├── to-buffer-stream.js ├── version.js └── writable-stream.js ├── package.json └── test ├── bind-polyfill.js ├── index.html ├── test.js └── webrunner.js /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules 2 | .DS_Store 3 | *~ 4 | coverage 5 | test/test-bundle.js 6 | npm-debug.log 7 | dist 8 | .idea 9 | -------------------------------------------------------------------------------- /.jshintrc: -------------------------------------------------------------------------------- 1 | { 2 | "curly": true, 3 | "eqeqeq": true, 4 | "immed": true, 5 | "newcap": true, 6 | "noarg": true, 7 | "sub": true, 8 | "undef": true, 9 | "unused": true, 10 | "eqnull": true, 11 | "browser": true, 12 | "node": true, 13 | "strict": true, 14 | "globalstrict": true, 15 | "globals": { "Pouch": true}, 16 | "white": true, 17 | "indent": 2, 18 | "maxlen": 100, 19 | "predef": [ 20 | "process", 21 | "global", 22 | "require", 23 | "console", 24 | "describe", 25 | "beforeEach", 26 | "afterEach", 27 | "it", 28 | "emit" 29 | ], 30 | "esnext": true 31 | } -------------------------------------------------------------------------------- /.npmignore: -------------------------------------------------------------------------------- 1 | .git* 2 | node_modules 3 | .DS_Store 4 | *~ 5 | coverage 6 | npm-debug.log 7 | vendor/ 8 | .idea 9 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: node_js 2 | 3 | services: 4 | - couchdb 5 | 6 | node_js: 7 | - "0.10" 8 | script: npm run $COMMAND 9 | before_script: 10 | - "export DISPLAY=:99.0" 11 | - "sh -e /etc/init.d/xvfb start" 12 | - "sleep 5" 13 | 14 | # Workaround for Selenium #3280 issue 15 | - "sudo sed -i 's/^127\\.0\\.0\\.1.*$/127.0.0.1 localhost/' /etc/hosts" 16 | 17 | # Lets know what CouchDB we are playing with 18 | # and make sure its logging debug 19 | - "curl -X GET http://127.0.0.1:5984/" 20 | - "curl -X PUT http://127.0.0.1:5984/_config/log/level -d '\"debug\"'" 21 | 22 | after_failure: 23 | - "curl -X GET http://127.0.0.1:5984/_log?bytes=1000000" 24 | 25 | env: 26 | matrix: 27 | - COMMAND=test 28 | - CLIENT=selenium:firefox COMMAND=test 29 | - CLIENT=selenium:phantomjs COMMAND=test 30 | - COMMAND=coverage 31 | 32 | branches: 33 | only: 34 | - master 35 | - /^pull*$/ 36 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. 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We also recommend that a 186 | file or class name and description of purpose be included on the 187 | same "printed page" as the copyright notice for easier 188 | identification within third-party archives. 189 | 190 | Copyright [yyyy] [name of copyright owner] 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. 203 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | PouchDB Replication Stream 2 | ===== 3 | 4 | [![Build Status](https://travis-ci.org/nolanlawson/pouchdb-replication-stream.svg)](https://travis-ci.org/nolanlawson/pouchdb-replication-stream) 5 | 6 | `ReadableStream`s and `WritableStream`s for PouchDB/CouchDB replication. 7 | 8 | Basically, you can replicate two databases by just attaching the streams together. 9 | 10 | This has many uses: 11 | 12 | 1. Dump a database to a file, and then load that same file into another database. 13 | 2. Do a quick initial replication by dumping the contents of a CouchDB to an HTTP endpoint, which is then loaded into a PouchDB in the browser. 14 | 3. Replicate over web sockets? Over bluetooth? Over NFC? Why not? Since the replication stream is just JSON plaintext, you can send it over any transport mechanism. 15 | 4. Periodically backup your database. 16 | 17 | Suite of Tools 18 | --------- 19 | 20 | * [pouchdb-dump-cli](https://github.com/nolanlawson/pouchdb-dump-cli) 21 | * [pouchdb-load](https://github.com/nolanlawson/pouchdb-load) 22 | * [express-pouchdb-replication-stream](https://github.com/conor-mac-aoidh/express-pouchdb-replication-stream) 23 | 24 | Examples 25 | ------ 26 | 27 | You can use `pouchdb-replication-stream` itself to: 28 | * [dump to a string](#dumping-to-a-string) 29 | * [replicate with in-memory streams](https://github.com/nolanlawson/pouchdb-replication-stream#stream-directly-without-the-dump-file) 30 | * do anything you can do with streams :) 31 | 32 | Usage 33 | ------- 34 | 35 | Let's assume you have two databases. It doesn't matter whether they're remote or local: 36 | 37 | ```js 38 | var db1 = new PouchDB('mydb'); 39 | var db2 = new PouchDB('http://localhost:5984/mydb'); 40 | ``` 41 | 42 | Let's dump the entire contents of db1 to a file using `dump()`: 43 | 44 | ```js 45 | var ws = fs.createWriteStream('output.txt'); 46 | 47 | db1.dump(ws).then(function (res) { 48 | // res should be {ok: true} 49 | }); 50 | ``` 51 | 52 | Now let's read that file into another database using `load()`: 53 | 54 | ```js 55 | var rs = fs.createReadStream('output.txt'); 56 | 57 | db2.load(rs).then(function (res) { 58 | // res should be {ok: true} 59 | }); 60 | ``` 61 | 62 | Congratulations, your databases are now in sync. It's the same effect as if you had done: 63 | 64 | ```js 65 | db1.replicate.to(db2); 66 | ``` 67 | 68 | API 69 | ----- 70 | 71 | ### db.dump(stream [, opts]) 72 | 73 | Dump the `db` to a `stream` with the given `opts`. Returns a Promise. 74 | 75 | The `opts` are passed directly to the `replicate()` API [as described here](http://pouchdb.com/api.html#replication). In particular you may want to set: 76 | 77 | * `batch_size` - how many documents to dump in each output chunk. Defaults to 50. 78 | * `since` - the `seq` from which to start reading changes. 79 | 80 | The options you are allowed to pass through are: `batch_size`, `batches_limit`, `filter`, `doc_ids`, `query_params`, `since`, and `view`. 81 | 82 | ### db.load(stream) 83 | 84 | Load changes from the given `stream` into the `db`. Returns a Promise. 85 | 86 | This is an idempotent operation, so you can call it multiple times and it won't change the result. 87 | 88 | #### Warning when using `pouchdb-load` 89 | 90 | The [pouchdb-load](https://github.com/nolanlawson/pouchdb-load) plugin has its own `db.load()` 91 | function, which is incompatible with this one. If you want to use both plugins at the same 92 | time, then you will need to do: 93 | 94 | ```js 95 | var PouchDB = require('pouchdb'); 96 | var load = require('pouchdb-load'); 97 | PouchDB.plugin({ 98 | loadIt: load.load 99 | }); 100 | // Then load `pouchdb-replication-stream` normally 101 | ``` 102 | 103 | Then you can use `pouchdb-load` via `db.loadIt()`, which will not clobber the `db.load()` from this plugin. (You must use Browserify/Webpack, since there is no prebuilt `loadIt()` version.) 104 | 105 | Design 106 | ---- 107 | 108 | The replication stream looks like this: 109 | 110 | ```js 111 | {"version":"0.1.0","db_type":"leveldb","start_time":"2014-09-07T21:31:01.527Z","db_info":{"doc_count":3,"update_seq":3,"db_name":"testdb"}} 112 | {"docs":[{"_id":"doc1","_rev":"1-x","_revisions":{"start":1,"ids":["x"]},"foo":"bar"}]} 113 | {"docs":[{"_id":"doc2","_rev":"1-y","_revisions":{"start":1,"ids":["y"]},"foo":"baz"}]} 114 | {"docs":[{"_id":"doc3","_rev":"1-z","_revisions":{"start":1,"ids":["z"]},"foo":"quux"}]} 115 | {"seq":3} 116 | ``` 117 | 118 | I.e. it's just NDJ - Newline Delimited JSON. Each line is a list of the documents to be loaded into the target database (using `bulkDocs()` with `{new_edits: false}`). 119 | 120 | The first line is a header containing some basic info, like the number of documents in the database and the replication stream protocol version. Such info many be useful for showing a progress bar during the `load()` process, or for handling later versions, in case this protocol changes. 121 | 122 | This replication stream is _idempotent_, meaning you can load it into a target database any number of times, and it will be as if you had only done it once. 123 | 124 | At the end of the `load()` process, the target database will function exactly as if it had been replicated from the source database. Revision hashes, conflicts, attachments, and document contents are all faithfully transported. 125 | 126 | Some lines may contain `seq`s; these are used as checkpoints. The `seq` line says, "When you have loaded all the preceding documents, you are now at update_seq `seq`." 127 | 128 | For the time being, attachments are just included as base64-encoded strings, ala CouchDB's `_all_docs` with `attachments=true` and `Accept: application/json`. 129 | 130 | Installation 131 | -------- 132 | 133 | To use this plugin, download it from the `dist` folder and include it after `pouchdb.js` in your HTML page: 134 | 135 | ```html 136 | 137 | 138 | ``` 139 | 140 | You can also use Bower: 141 | 142 | bower install pouchdb-replication-stream 143 | 144 | Or to use it in Node.js, just npm install it: 145 | 146 | npm install pouchdb-replication-stream 147 | 148 | In Node.js, you can attach it to the `PouchDB` object using the following code: 149 | 150 | ```js 151 | var PouchDB = require('pouchdb'); 152 | var replicationStream = require('pouchdb-replication-stream'); 153 | 154 | PouchDB.plugin(replicationStream.plugin); 155 | PouchDB.adapter('writableStream', replicationStream.adapters.writableStream); 156 | ``` 157 | 158 | Stream directly without the dump file 159 | --- 160 | 161 | On Node.js or with [`Browserify`](http://browserify.org/), ou can use a [`MemoryStream`](https://github.com/JSBizon/node-memorystream) to stream directly without dumping to a file. Here's an example: 162 | 163 | ```js 164 | var Promise = require('bluebird'); 165 | var PouchDB = require('pouchdb'); 166 | var replicationStream = require('pouchdb-replication-stream'); 167 | var MemoryStream = require('memorystream'); 168 | 169 | PouchDB.plugin(replicationStream.plugin); 170 | PouchDB.adapter('writableStream', replicationStream.adapters.writableStream); 171 | var stream = new MemoryStream(); 172 | 173 | var source = new PouchDB('http://localhost:5984/source_db'); 174 | var dest = new PouchDB('local_destination'); 175 | 176 | Promise.all([ 177 | source.dump(stream), 178 | dest.load(stream) 179 | ]).then(function () { 180 | console.log('Hooray the stream replication is complete!'); 181 | }).catch(function (err) { 182 | console.log('oh no an error', err); 183 | }); 184 | ``` 185 | 186 | This will also work in the browser if you are using [Browserify](http://browserify.org). 187 | 188 | If you aren't using Browserify, then you can download `MemoryStream` from [https://wzrd.in/standalone/memorystream@latest](https://wzrd.in/standalone/memorystream@latest) and it will be available as `window.memorystream`. 189 | 190 | Example: 191 | 192 | ```html 193 | 194 | 195 | 196 | ``` 197 | 198 | ```js 199 | var localDB = new PouchDB('foo'); 200 | var remoteDB = new PouchDB('bar'); 201 | 202 | var source = new PouchDB('http://localhost:5984/source_db'); 203 | var dest = new PouchDB('local_destination'); 204 | 205 | Promise.all([ 206 | source.dump(stream), 207 | dest.load(stream) 208 | ]).then(function () { 209 | console.log('Hooray the stream replication is complete!'); 210 | }).catch(function (err) { 211 | console.log('oh no an error', err); 212 | }); 213 | ``` 214 | 215 | Dumping to a string 216 | --- 217 | 218 | You can use [`MemoryStream`](https://github.com/JSBizon/node-memorystream) to read in the entire 219 | stream and dump it to a string. 220 | 221 | 222 | 223 | Example: 224 | 225 | ```js 226 | var PouchDB = require('pouchdb'); 227 | var replicationStream = require('pouchdb-replication-stream'); 228 | var MemoryStream = require('memorystream'); 229 | 230 | PouchDB.plugin(replicationStream.plugin); 231 | PouchDB.adapter('writableStream', replicationStream.adapters.writableStream); 232 | 233 | var dumpedString = ''; 234 | var stream = new MemoryStream(); 235 | stream.on('data', function(chunk) { 236 | dumpedString += chunk.toString(); 237 | }); 238 | 239 | var db = new PouchDB('my_db'); 240 | 241 | db.dump(stream).then(function () { 242 | console.log('Yay, I have a dumpedString: ' + dumpedString); 243 | }).catch(function (err) { 244 | console.log('oh no an error', err); 245 | }); 246 | ``` 247 | 248 | This will also work in the browser via [Browserify](http://browserify.org/). 249 | 250 | If you aren't using Browserify, then you can download `MemoryStream` from [https://wzrd.in/standalone/memorystream@latest](https://wzrd.in/standalone/memorystream@latest) and it will be available as `window.memorystream`. 251 | 252 | Example: 253 | 254 | ```html 255 | 256 | 257 | 258 | ``` 259 | 260 | ```js 261 | var db = new PouchDB('my_db'); 262 | 263 | var MemoryStream = window.MemoryStream; 264 | 265 | var dumpedString = ''; 266 | stream.on('data', function(chunk) { 267 | dumpedString += chunk.toString(); 268 | }); 269 | 270 | db.dump(stream).then(function () { 271 | console.log('Yay, I have a dumpedString: ' + dumpedString); 272 | }).catch(function (err) { 273 | console.log('oh no an error', err); 274 | }); 275 | ``` 276 | 277 | Known pitfalls 278 | --- 279 | 280 | ### Read error 400 ECONNRESET 281 | 282 | Basically this means your CouchDB cannot handle all concurrent requests happening. Most probable cause is you have 200+ attachments on one of your documents. 283 | 284 | One simple way to get around this error is to limit the globalAgent maxSockets, which manages the maximum number of concurret http requests. 285 | 286 | ```js 287 | require('http').globalAgent.maxSockets = 25; 288 | ``` 289 | 290 | ### Trying to speed up PouchDB replication? 291 | 292 | If you are using this library in the browser, then it's not going to speed up replication. The whole point is to minify the number of HTTP requests by collapsing replication into a stream, and then sending one big chunk down the wire to the client. If you use it on the client side, then it will still make many small requests to the server, which is slow. 293 | 294 | What you probably want is to use this library server-side, in a Node.js process. For a good example, see the Express wrapper: [express-pouchdb-replication-stream](https://github.com/conor-mac-aoidh/express-pouchdb-replication-stream). 295 | 296 | Building 297 | ---- 298 | npm install 299 | npm run build 300 | 301 | Your plugin is now located at `dist/pouchdb.mypluginname.js` and `dist/pouchdb.mypluginname.min.js` and is ready for distribution. 302 | 303 | Testing 304 | ---- 305 | 306 | ### In Node 307 | 308 | This will run the tests in Node using LevelDB: 309 | 310 | npm test 311 | 312 | You can also check for 100% code coverage using: 313 | 314 | npm run coverage 315 | 316 | If you don't like the coverage results, change the values from 100 to something else in `package.json`, or add `/*istanbul ignore */` comments. 317 | 318 | 319 | If you have mocha installed globally you can run single test with: 320 | ``` 321 | TEST_DB=local mocha --reporter spec --grep search_phrase 322 | ``` 323 | 324 | The `TEST_DB` environment variable specifies the database that PouchDB should use (see `package.json`). 325 | 326 | ### In the browser 327 | 328 | Run `npm run dev` and then point your favorite browser to [http://127.0.0.1:8001/test/index.html](http://127.0.0.1:8001/test/index.html). 329 | 330 | The query param `?grep=mysearch` will search for tests matching `mysearch`. 331 | 332 | ### Automated browser tests 333 | 334 | You can run e.g. 335 | 336 | CLIENT=selenium:firefox npm test 337 | CLIENT=selenium:phantomjs npm test 338 | 339 | This will run the tests automatically and the process will exit with a 0 or a 1 when it's done. Firefox uses IndexedDB, and PhantomJS uses WebSQL. 340 | -------------------------------------------------------------------------------- /bin/dev-server.js: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env node 2 | 3 | 'use strict'; 4 | 5 | var COUCH_HOST = process.env.COUCH_HOST || 'http://127.0.0.1:5984'; 6 | var HTTP_PORT = 8001; 7 | 8 | var Promise = require('bluebird'); 9 | var request = require('request'); 10 | var http_server = require("http-server"); 11 | var fs = require('fs'); 12 | var indexfile = "./test/test.js"; 13 | var dotfile = "./test/.test-bundle.js"; 14 | var outfile = "./test/test-bundle.js"; 15 | var watchify = require("watchify"); 16 | var browserify = require('browserify'); 17 | var w = watchify(browserify(indexfile, { 18 | cache: {}, 19 | packageCache: {}, 20 | fullPaths: true, 21 | debug: true 22 | })); 23 | 24 | w.on('update', bundle); 25 | bundle(); 26 | 27 | var filesWritten = false; 28 | var serverStarted = false; 29 | var readyCallback; 30 | 31 | function bundle() { 32 | var wb = w.bundle(); 33 | wb.on('error', function (err) { 34 | console.error(String(err)); 35 | }); 36 | wb.on("end", end); 37 | wb.pipe(fs.createWriteStream(dotfile)); 38 | 39 | function end() { 40 | fs.rename(dotfile, outfile, function (err) { 41 | if (err) { return console.error(err); } 42 | console.log('Updated:', outfile); 43 | filesWritten = true; 44 | checkReady(); 45 | }); 46 | } 47 | } 48 | 49 | function startServers(callback) { 50 | readyCallback = callback; 51 | // enable CORS globally, because it's easier this way 52 | 53 | var corsValues = { 54 | '/_config/httpd/enable_cors': 'true', 55 | '/_config/cors/origins': '*', 56 | '/_config/cors/credentials': 'true', 57 | '/_config/cors/methods': 'PROPFIND, PROPPATCH, COPY, MOVE, DELETE, ' + 58 | 'MKCOL, LOCK, UNLOCK, PUT, GETLIB, VERSION-CONTROL, CHECKIN, ' + 59 | 'CHECKOUT, UNCHECKOUT, REPORT, UPDATE, CANCELUPLOAD, HEAD, ' + 60 | 'OPTIONS, GET, POST', 61 | '/_config/cors/headers': 62 | 'Cache-Control, Content-Type, Depth, Destination, ' + 63 | 'If-Modified-Since, Overwrite, User-Agent, X-File-Name, ' + 64 | 'X-File-Size, X-Requested-With, accept, accept-encoding, ' + 65 | 'accept-language, authorization, content-type, origin, referer' 66 | }; 67 | 68 | Promise.all(Object.keys(corsValues).map(function (key) { 69 | var value = corsValues[key]; 70 | return request({ 71 | method: 'put', 72 | url: COUCH_HOST + key, 73 | body: JSON.stringify(value) 74 | }); 75 | })).then(function () { 76 | return http_server.createServer().listen(HTTP_PORT); 77 | }).then(function () { 78 | console.log('Tests: http://127.0.0.1:' + HTTP_PORT + '/test/index.html'); 79 | serverStarted = true; 80 | checkReady(); 81 | }).catch(function (err) { 82 | if (err) { 83 | console.log(err); 84 | process.exit(1); 85 | } 86 | }); 87 | } 88 | 89 | function checkReady() { 90 | if (filesWritten && serverStarted && readyCallback) { 91 | readyCallback(); 92 | } 93 | } 94 | 95 | if (require.main === module) { 96 | startServers(); 97 | } else { 98 | module.exports.start = startServers; 99 | } 100 | -------------------------------------------------------------------------------- /bin/es3ify.js: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env node 2 | 'use strict'; 3 | var es3ify = require('es3ify'); 4 | return process.stdin.pipe(es3ify()).pipe(process.stdout); 5 | -------------------------------------------------------------------------------- /bin/run-test.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | : ${CLIENT:="node"} 4 | 5 | if [ "$CLIENT" == "node" ]; then 6 | npm run test-node 7 | else 8 | npm run test-browser 9 | fi 10 | -------------------------------------------------------------------------------- /bin/test-browser.js: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env node 2 | 'use strict'; 3 | 4 | var wd = require('wd'); 5 | var sauceConnectLauncher = require('sauce-connect-launcher'); 6 | var selenium = require('selenium-standalone'); 7 | var querystring = require("querystring"); 8 | 9 | var devserver = require('./dev-server.js'); 10 | 11 | var testTimeout = 30 * 60 * 1000; 12 | 13 | var username = process.env.SAUCE_USERNAME; 14 | var accessKey = process.env.SAUCE_ACCESS_KEY; 15 | 16 | // process.env.CLIENT is a colon seperated list of 17 | // (saucelabs|selenium):browserName:browserVerion:platform 18 | var tmp = (process.env.CLIENT || 'selenium:firefox').split(':'); 19 | var client = { 20 | runner: tmp[0] || 'selenium', 21 | browser: tmp[1] || 'firefox', 22 | version: tmp[2] || null, // Latest 23 | platform: tmp[3] || null 24 | }; 25 | 26 | var testUrl = 'http://127.0.0.1:8001/test/index.html'; 27 | var qs = {}; 28 | 29 | var sauceClient; 30 | var sauceConnectProcess; 31 | var tunnelId = process.env.TRAVIS_JOB_NUMBER || 'tunnel-' + Date.now(); 32 | 33 | if (client.runner === 'saucelabs') { 34 | qs.saucelabs = true; 35 | } 36 | if (process.env.GREP) { 37 | qs.grep = process.env.GREP; 38 | } 39 | testUrl += '?'; 40 | testUrl += querystring.stringify(qs); 41 | 42 | if (process.env.TRAVIS && 43 | client.browser !== 'firefox' && 44 | client.browser !== 'phantomjs' && 45 | process.env.TRAVIS_SECURE_ENV_VARS === 'false') { 46 | console.error('Not running test, cannot connect to saucelabs'); 47 | process.exit(1); 48 | return; 49 | } 50 | 51 | function testError(e) { 52 | console.error(e); 53 | console.error('Doh, tests failed'); 54 | sauceClient.quit(); 55 | process.exit(3); 56 | } 57 | 58 | function postResult(result) { 59 | process.exit(!process.env.PERF && result.failed ? 1 : 0); 60 | } 61 | 62 | function testComplete(result) { 63 | console.log(result); 64 | 65 | sauceClient.quit().then(function () { 66 | if (sauceConnectProcess) { 67 | sauceConnectProcess.close(function () { 68 | postResult(result); 69 | }); 70 | } else { 71 | postResult(result); 72 | } 73 | }); 74 | } 75 | 76 | function startSelenium(callback) { 77 | // Start selenium 78 | var opts = {version: '2.45.0'}; 79 | selenium.install(opts, function(err) { 80 | if (err) { 81 | console.error('Failed to install selenium'); 82 | process.exit(1); 83 | } 84 | selenium.start(opts, function(err, server) { 85 | sauceClient = wd.promiseChainRemote(); 86 | callback(); 87 | }); 88 | }); 89 | } 90 | 91 | function startSauceConnect(callback) { 92 | 93 | var options = { 94 | username: username, 95 | accessKey: accessKey, 96 | tunnelIdentifier: tunnelId 97 | }; 98 | 99 | sauceConnectLauncher(options, function (err, process) { 100 | if (err) { 101 | console.error('Failed to connect to saucelabs'); 102 | console.error(err); 103 | return process.exit(1); 104 | } 105 | sauceConnectProcess = process; 106 | sauceClient = wd.promiseChainRemote("localhost", 4445, username, accessKey); 107 | callback(); 108 | }); 109 | } 110 | 111 | function startTest() { 112 | 113 | console.log('Starting', client); 114 | 115 | var opts = { 116 | browserName: client.browser, 117 | version: client.version, 118 | platform: client.platform, 119 | tunnelTimeout: testTimeout, 120 | name: client.browser + ' - ' + tunnelId, 121 | 'max-duration': 60 * 30, 122 | 'command-timeout': 599, 123 | 'idle-timeout': 599, 124 | 'tunnel-identifier': tunnelId 125 | }; 126 | 127 | sauceClient.init(opts).get(testUrl, function () { 128 | 129 | /* jshint evil: true */ 130 | var interval = setInterval(function () { 131 | sauceClient.eval('window.results', function (err, results) { 132 | if (err) { 133 | clearInterval(interval); 134 | testError(err); 135 | } else if (results.completed || results.failures.length) { 136 | clearInterval(interval); 137 | testComplete(results); 138 | } else { 139 | console.log('=> ', results); 140 | } 141 | }); 142 | }, 10 * 1000); 143 | }); 144 | } 145 | 146 | devserver.start(function () { 147 | if (client.runner === 'saucelabs') { 148 | startSauceConnect(startTest); 149 | } else { 150 | startSelenium(startTest); 151 | } 152 | }); 153 | -------------------------------------------------------------------------------- /bower.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "pouchdb-replication-stream", 3 | "version": "1.2.4", 4 | "description": "PouchDB as a replication stream", 5 | "main": "dist/pouchdb.replication-stream.js", 6 | "homepage": "https://github.com/nolanlawson/pouchdb-replication-stream", 7 | "authors": [ 8 | "Nolan Lawson " 9 | ], 10 | "moduleType": [ 11 | "node" 12 | ], 13 | "keywords": [ 14 | "pouchdb", 15 | "stream" 16 | ], 17 | "license": "Apache 2", 18 | "ignore": [ 19 | "**/.*", 20 | "node_modules", 21 | "bower_components", 22 | "test", 23 | "tests" 24 | ] 25 | } 26 | -------------------------------------------------------------------------------- /dist/pouchdb.replication-stream.min.js: -------------------------------------------------------------------------------- 1 | !function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.PouchReplicationStream=e()}}(function(){return function e(t,n,r){function i(s,a){if(!n[s]){if(!t[s]){var u="function"==typeof require&&require;if(!a&&u)return u(s,!0);if(o)return o(s,!0);var f=new Error("Cannot find module '"+s+"'");throw f.code="MODULE_NOT_FOUND",f}var c=n[s]={exports:{}};t[s][0].call(c.exports,function(e){var n=t[s][1][e];return i(n||e)},c,c.exports,e,t,n,r)}return n[s].exports}for(var o="function"==typeof require&&require,s=0;s0)throw new Error("Invalid string. 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t&&(n=t,t={});var s=o.constructor,u=o.name||o._db_name,c=new s(u,{adapter:"writableStream"});c.setupStream(e),o.info().then(function(n){var r={version:i,db_type:o.type(),start_time:(new Date).toJSON(),db_info:n};return e.write(JSON.stringify(r)+"\n"),t=a(t,f),t.batch_size||(t.batch_size=50),o.replicate.to(c,t)}).then(function(){return c.close()}).then(function(){n(null,{ok:!0})}).catch(r)}),n.plugin.load=r.toPromise(function(e,t,n){"function"==typeof t&&(n=t,t={});var r;r="batch_size"in t?t.batch_size:50;var i=null,a=[];e.pipe(u()).pipe(o.parse()).on("error",function(e){i=e}).pipe(s(function(e,t,n){if(!e.docs)return n();e.docs.forEach(function(e){this.push(e)},this),n()})).pipe(s(function(e,t,n){a.push(e),a.length>=r&&(this.push(a),a=[]),n()},function(e){a.length&&this.push(a),e()})).pipe(this.createWriteStream({new_edits:!1})).on("error",n).on("finish",function(){n(i,{ok:!0})})}),"undefined"!=typeof window&&window.PouchDB&&(window.PouchDB.plugin(n.plugin),window.PouchDB.adapter("writableStream",n.adapters.writableStream))},{1:1,16:16,17:17,2:2,20:20,3:3,4:4,50:50}]},{},[57])(57)}); 5 | -------------------------------------------------------------------------------- /lib/index.js: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | var utils = require('./pouch-utils'); 4 | var version = require('./version'); 5 | var ndj = require('ndjson'); 6 | var through = require('through2').obj; 7 | var pick = require('lodash.pick'); 8 | var toBufferStream = require('./to-buffer-stream'); 9 | var DEFAULT_BATCH_SIZE = 50; 10 | 11 | // params to the replicate() API that the user is allowed to specify 12 | var ALLOWED_PARAMS = [ 13 | 'batch_size', 14 | 'batches_limit', 15 | 'filter', 16 | 'doc_ids', 17 | 'query_params', 18 | 'since', 19 | 'view' 20 | ]; 21 | 22 | exports.adapters = {}; 23 | exports.adapters.writableStream = require('./writable-stream'); 24 | 25 | exports.plugin = require('pouch-stream'); 26 | 27 | exports.plugin.dump = utils.toPromise(function (writableStream, opts, callback) { 28 | var self = this; 29 | /* istanbul ignore else */ 30 | if (typeof opts === 'function') { 31 | callback = opts; 32 | opts = {}; 33 | } 34 | 35 | var PouchDB = self.constructor; 36 | 37 | // db.name replaced db._db_name in pouch 6.0.0 38 | /* istanbul ignore next */ 39 | var dbName = self.name || self._db_name; 40 | var output = new PouchDB(dbName, { 41 | adapter: 'writableStream' 42 | }); 43 | output.setupStream(writableStream); 44 | 45 | var chain = self.info().then(function (info) { 46 | var header = { 47 | version: version, 48 | db_type: self.type(), 49 | start_time: new Date().toJSON(), 50 | db_info: info 51 | }; 52 | writableStream.write(JSON.stringify(header) + '\n'); 53 | opts = pick(opts, ALLOWED_PARAMS); 54 | if (!opts.batch_size) { 55 | opts.batch_size = DEFAULT_BATCH_SIZE; 56 | } 57 | return self.replicate.to(output, opts); 58 | }).then(function () { 59 | return output.close(); 60 | }).then(function () { 61 | callback(null, {ok: true}); 62 | }); 63 | /* istanbul ignore next */ 64 | function onErr(err) { 65 | callback(err); 66 | } 67 | chain.catch(onErr); 68 | }); 69 | 70 | exports.plugin.load = utils.toPromise(function (readableStream, opts, callback) { 71 | /* istanbul ignore else */ 72 | if (typeof opts === 'function') { 73 | callback = opts; 74 | opts = {}; 75 | } 76 | 77 | var batchSize; 78 | /* istanbul ignore if */ 79 | if ('batch_size' in opts) { 80 | batchSize = opts.batch_size; 81 | } else { 82 | batchSize = DEFAULT_BATCH_SIZE; 83 | } 84 | 85 | // We need this variable in order to call the callback only once. 86 | // The stream is not closed when the 'error' event is emitted. 87 | var error = null; 88 | 89 | var queue = []; 90 | readableStream 91 | .pipe(toBufferStream()) 92 | .pipe(ndj.parse()) 93 | .on('error', function (errorCatched) { 94 | error = errorCatched; 95 | }) 96 | .pipe(through(function (data, _, next) { 97 | if (!data.docs) { 98 | return next(); 99 | } 100 | // lets smooth it out 101 | data.docs.forEach(function (doc) { 102 | this.push(doc); 103 | }, this); 104 | next(); 105 | })) 106 | .pipe(through(function (doc, _, next) { 107 | queue.push(doc); 108 | if (queue.length >= batchSize) { 109 | this.push(queue); 110 | queue = []; 111 | } 112 | next(); 113 | }, function (next) { 114 | if (queue.length) { 115 | this.push(queue); 116 | } 117 | next(); 118 | })) 119 | .pipe(this.createWriteStream({new_edits: false})) 120 | .on('error', callback) 121 | .on('finish', function () { 122 | callback(error, {ok: true}); 123 | }); 124 | }); 125 | 126 | /* istanbul ignore next */ 127 | if (typeof window !== 'undefined' && window.PouchDB) { 128 | window.PouchDB.plugin(exports.plugin); 129 | window.PouchDB.adapter('writableStream', exports.adapters.writableStream); 130 | } 131 | -------------------------------------------------------------------------------- /lib/pouch-utils.js: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | /* istanbul ignore next */ 4 | exports.once = function (fun) { 5 | var called = false; 6 | return exports.getArguments(function (args) { 7 | if (called) { 8 | console.trace(); 9 | throw new Error('once called more than once'); 10 | } else { 11 | called = true; 12 | fun.apply(this, args); 13 | } 14 | }); 15 | }; 16 | /* istanbul ignore next */ 17 | exports.getArguments = function (fun) { 18 | return function () { 19 | var len = arguments.length; 20 | var args = new Array(len); 21 | var i = -1; 22 | while (++i < len) { 23 | args[i] = arguments[i]; 24 | } 25 | return fun.call(this, args); 26 | }; 27 | }; 28 | /* istanbul ignore next */ 29 | exports.toPromise = function (func) { 30 | //create the function we will be returning 31 | return exports.getArguments(function (args) { 32 | var self = this; 33 | var tempCB = (typeof args[args.length - 1] === 'function') ? args.pop() : false; 34 | // if the last argument is a function, assume its a callback 35 | var usedCB; 36 | if (tempCB) { 37 | // if it was a callback, create a new callback which calls it, 38 | // but do so async so we don't trap any errors 39 | usedCB = function (err, resp) { 40 | process.nextTick(function () { 41 | tempCB(err, resp); 42 | }); 43 | }; 44 | } 45 | var promise = new Promise(function (fulfill, reject) { 46 | try { 47 | var callback = exports.once(function (err, mesg) { 48 | if (err) { 49 | reject(err); 50 | } else { 51 | fulfill(mesg); 52 | } 53 | }); 54 | // create a callback for this invocation 55 | // apply the function in the orig context 56 | args.push(callback); 57 | func.apply(self, args); 58 | } catch (e) { 59 | reject(e); 60 | } 61 | }); 62 | // if there is a callback, call it back 63 | if (usedCB) { 64 | promise.then(function (result) { 65 | usedCB(null, result); 66 | }, usedCB); 67 | } 68 | promise.cancel = function () { 69 | return this; 70 | }; 71 | return promise; 72 | }); 73 | }; 74 | 75 | exports.inherits = require('inherits'); 76 | -------------------------------------------------------------------------------- /lib/to-buffer-stream.js: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | var through = require('through2').obj; 4 | 5 | module.exports = function () { 6 | return through(function (chunk, _, next) { 7 | // this only applies in the browser 8 | /* istanbul ignore next */ 9 | if (!(chunk instanceof Buffer) && Buffer.isBuffer(chunk)) { 10 | chunk = new Buffer(chunk); 11 | } 12 | this.push(chunk); 13 | next(); 14 | }); 15 | }; 16 | -------------------------------------------------------------------------------- /lib/version.js: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | module.exports = require('./../package.json').version; 4 | -------------------------------------------------------------------------------- /lib/writable-stream.js: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | var utils = require('./pouch-utils'); 4 | var ERROR_REV_CONFLICT = { 5 | status: 409, 6 | name: 'conflict', 7 | message: 'Document update conflict' 8 | }; 9 | var ndj = require('ndjson'); 10 | var ERROR_MISSING_DOC = { 11 | status: 404, 12 | name: 'not_found', 13 | message: 'missing' 14 | }; 15 | function WritableStreamPouch(opts, callback) { 16 | var api = this; 17 | api.instanceId = Math.random().toString(); 18 | api.ndj = ndj.serialize(); 19 | api.localStore = {}; 20 | api.originalName = opts.name; 21 | 22 | // TODO: I would pass this in as a constructor opt, but 23 | // PouchDB changed how it clones in 5.0.0 so this broke 24 | api.setupStream = function (stream) { 25 | api.ndj.pipe(stream); 26 | }; 27 | 28 | /* istanbul ignore next */ 29 | api.type = function () { 30 | return 'writableStream'; 31 | }; 32 | 33 | api._remote = false; 34 | 35 | api._id = utils.toPromise(function (callback) { 36 | callback(null, api.instanceId); 37 | }); 38 | 39 | api._bulkDocs = function (req, opts, callback) { 40 | var docs = req.docs; 41 | var self = this; 42 | /* istanbul ignore else */ 43 | if (opts.new_edits === false) { 44 | // assume we're only getting this with new_edits=false, 45 | // since this adapter is just a replication target 46 | this.ndj.write({docs: docs}, function () { 47 | callback(null, docs.map(function (doc) { 48 | return { 49 | ok: true, 50 | id: doc._id, 51 | rev: doc._rev 52 | }; 53 | })); 54 | }); 55 | } else { 56 | // writing local docs for replication 57 | Promise.all(docs.map(function (doc) { 58 | self.localStore[doc._id] = doc; 59 | })).then(function (res) { 60 | callback(null, res); 61 | }).catch(function (err) { 62 | callback(err); 63 | }); 64 | } 65 | }; 66 | 67 | api._getRevisionTree = function (docId, callback) { 68 | process.nextTick(function () { 69 | callback(ERROR_MISSING_DOC); 70 | }); 71 | }; 72 | 73 | api._close = function (callback) { 74 | this.ndj.end(callback); 75 | }; 76 | 77 | api._getLocal = function (id, callback) { 78 | var self = this; 79 | process.nextTick(function () { 80 | var existingDoc = self.localStore[id]; 81 | /* istanbul ignore else */ 82 | if (existingDoc) { 83 | callback(null, existingDoc); 84 | } else { 85 | callback(ERROR_MISSING_DOC); 86 | } 87 | }); 88 | }; 89 | 90 | api._putLocal = function (doc, opts, callback) { 91 | var self = this; 92 | /* istanbul ignore else */ 93 | if (typeof opts === 'function') { 94 | callback = opts; 95 | opts = {}; 96 | } 97 | delete doc._revisions; // ignore this, trust the rev 98 | var oldRev = doc._rev; 99 | var id = doc._id; 100 | var newRev; 101 | if (!oldRev) { 102 | newRev = doc._rev = '0-1'; 103 | } else { 104 | newRev = doc._rev = '0-' + (parseInt(oldRev.split('-')[1], 10) + 1); 105 | } 106 | 107 | process.nextTick(function () { 108 | var existingDoc = self.localStore[id]; 109 | /* istanbul ignore if */ 110 | if (existingDoc && oldRev !== existingDoc._rev) { 111 | callback(ERROR_REV_CONFLICT); 112 | } else { 113 | self.localStore[id] = doc; 114 | var done = function () { 115 | callback(null, {ok: true, id: id, rev: newRev}); 116 | }; 117 | /* istanbul ignore else */ 118 | if ('last_seq' in doc) { 119 | self.ndj.write({seq: doc.last_seq}, done); 120 | } else { 121 | done(); 122 | } 123 | } 124 | }); 125 | }; 126 | 127 | /* istanbul ignore next */ 128 | api._removeLocal = function (doc, callback) { 129 | var self = this; 130 | process.nextTick(function () { 131 | var existingDoc = self.localStore[doc._id]; 132 | if (existingDoc && doc._rev !== existingDoc._rev) { 133 | callback(ERROR_REV_CONFLICT); 134 | } else { 135 | delete self.localStore[doc._id]; 136 | callback(null, {ok: true, id: doc._id, rev: '0-0'}); 137 | } 138 | }); 139 | }; 140 | 141 | /* istanbul ignore next */ 142 | api._destroy = function (opts, callback) { 143 | if (typeof opts === 'function') { 144 | callback = opts; 145 | opts = {}; 146 | } 147 | WritableStreamPouch.Changes.removeAllListeners(api.originalName); 148 | process.nextTick(function () { 149 | callback(null, {'ok': true}); 150 | }); 151 | }; 152 | 153 | process.nextTick(function () { 154 | callback(null, api); 155 | }); 156 | } 157 | 158 | WritableStreamPouch.valid = function () { 159 | return true; 160 | }; 161 | 162 | module.exports = WritableStreamPouch; 163 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "pouchdb-replication-stream", 3 | "version": "1.2.9", 4 | "description": "PouchDB/CouchDB replication as a stream", 5 | "main": "lib/index.js", 6 | "repository": { 7 | "type": "git", 8 | "url": "git://github.com/nolanlawson/pouchdb-replication-stream.git" 9 | }, 10 | "keywords": [ 11 | "pouch", 12 | "pouchdb", 13 | "plugin", 14 | "stream", 15 | "replication", 16 | "couch", 17 | "couchdb" 18 | ], 19 | "author": "", 20 | "license": "Apache-2.0", 21 | "bugs": { 22 | "url": "https://github.com/nolanlawson/pouchdb-replication-stream/issues" 23 | }, 24 | "scripts": { 25 | "test-node": "TEST_DB=testdb,http://localhost:5984/testdb istanbul test ./node_modules/mocha/bin/_mocha test/test.js -- -R spec", 26 | "test-browser": "./bin/test-browser.js", 27 | "jshint": "jshint -c .jshintrc lib test/test.js", 28 | "test": "npm run jshint && ./bin/run-test.sh", 29 | "build": "mkdirp dist && npm run browserify && npm run min", 30 | "browserify": "browserify -p bundle-collapser/plugin -s PouchReplicationStream . | ./bin/es3ify.js | derequire > dist/pouchdb.replication-stream.js", 31 | "min": "uglifyjs dist/pouchdb.replication-stream.js -mc > dist/pouchdb.replication-stream.min.js", 32 | "dev": "browserify test/test.js > test/test-bundle.js && npm run dev-server", 33 | "dev-server": "./bin/dev-server.js", 34 | "coverage": "npm test --coverage && istanbul check-coverage --lines 100 --function 100 --statements 100 --branches 100" 35 | }, 36 | "dependencies": { 37 | "argsarray": "0.0.1", 38 | "inherits": "^2.0.3", 39 | "lodash.pick": "^4.0.0", 40 | "ndjson": "^1.4.3", 41 | "pouch-stream": "^0.4.0", 42 | "pouchdb": "^8.0.1", 43 | "pouchdb-adapter-memory": "^8.0.1", 44 | "through2": "^2.0.0" 45 | }, 46 | "devDependencies": { 47 | "bluebird": "^1.0.7", 48 | "browserify": "^11.2.0", 49 | "bundle-collapser": "^1.2.1", 50 | "chai": "^3.3.0", 51 | "chai-as-promised": "^5.1.0", 52 | "derequire": "^2.0.0", 53 | "es3ify": "^0.1.3", 54 | "http-server": "~0.8.5", 55 | "istanbul": "^0.2.7", 56 | "jshint": "^2.3.0", 57 | "lie": "^3.1.0", 58 | "memorystream": "^0.3.0", 59 | "mkdirp": "^0.5.0", 60 | "mocha": "~1.18", 61 | "noms": "0.0.0", 62 | "phantomjs": "^1.9.7-5", 63 | "random-document-stream": "0.0.0", 64 | "request": "^2.36.0", 65 | "sauce-connect-launcher": "^0.4.2", 66 | "selenium-standalone": "6.16.0", 67 | "uglify-js": "^2.4.13", 68 | "watchify": "^3.1.0", 69 | "wd": "^0.2.21" 70 | } 71 | } 72 | -------------------------------------------------------------------------------- /test/bind-polyfill.js: -------------------------------------------------------------------------------- 1 | (function () { 2 | 'use strict'; 3 | // minimal polyfill for phantomjs; in the future, we should do ES5_SHIM=true like pouchdb 4 | if (!Function.prototype.bind) { 5 | Function.prototype.bind = function (oThis) { 6 | if (typeof this !== "function") { 7 | // closest thing possible to the ECMAScript 5 8 | // internal IsCallable function 9 | throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable"); 10 | } 11 | 12 | var aArgs = Array.prototype.slice.call(arguments, 1), 13 | fToBind = this, 14 | fNOP = function () {}, 15 | fBound = function () { 16 | return fToBind.apply(this instanceof fNOP && oThis 17 | ? this 18 | : oThis, 19 | aArgs.concat(Array.prototype.slice.call(arguments))); 20 | }; 21 | 22 | fNOP.prototype = this.prototype; 23 | fBound.prototype = new fNOP(); 24 | 25 | return fBound; 26 | }; 27 | } 28 | })(); 29 | -------------------------------------------------------------------------------- /test/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Mocha Tests 6 | 7 | 8 | 9 | 12 | 13 | 14 | 15 |
16 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /test/test.js: -------------------------------------------------------------------------------- 1 | 'use strict'; 2 | 3 | var Pouch = require('pouchdb'); 4 | // Pouch.plugin(require('pouchdb-adapter-memory')); 5 | 6 | //var Readable = require('stream').Readable; 7 | //var Writable = require('stream').Writable; 8 | 9 | // 10 | // your plugin goes here 11 | // 12 | var replicationStream = require('../'); 13 | Pouch.plugin(replicationStream.plugin); 14 | Object.keys(replicationStream.adapters).forEach(function (adapterName) { 15 | var adapter = replicationStream.adapters[adapterName]; 16 | Pouch.adapter(adapterName, adapter); 17 | }); 18 | var random = require('random-document-stream'); 19 | 20 | var noms = require('noms'); 21 | var chai = require('chai'); 22 | chai.use(require("chai-as-promised")); 23 | var through = require('through2').obj; 24 | chai.should(); 25 | var Promise = require('bluebird'); 26 | var MemoryStream = require('memorystream'); 27 | 28 | var dbs; 29 | if (process.browser) { 30 | dbs = 'testdb' + Math.random() + 31 | ',http://localhost:5984/testdb' + Math.round(Math.random() * 100000); 32 | } else { 33 | dbs = process.env.TEST_DB; 34 | } 35 | dbs.split(',').forEach(function (db) { 36 | var dbType = /^http/.test(db) ? 'http' : 'local'; 37 | tests(db, dbType); 38 | }); 39 | 40 | function tests(dbName, dbType) { 41 | var db; 42 | var remote; 43 | var out; 44 | var stream; 45 | var outStream; 46 | 47 | beforeEach(function () { 48 | this.timeout(30000); 49 | out = []; 50 | stream = through(function (chunk, _, next) { 51 | out.push(chunk); 52 | next(); 53 | }); 54 | outStream = noms(function (next) { 55 | out.forEach(function (item) { 56 | this.push(item); 57 | }, this); 58 | next(null, null); 59 | }); 60 | db = new Pouch(dbName); 61 | return db.info().then(function () { 62 | remote = new Pouch(dbName + '_remote'); 63 | return remote.info().then(function () {}); 64 | }); 65 | }); 66 | 67 | afterEach(function () { 68 | this.timeout(30000); 69 | return db.destroy().then(function () { 70 | return remote.destroy(); 71 | }); 72 | }); 73 | 74 | describe(dbType + ': test suite', function () { 75 | this.timeout(30000); 76 | 77 | it('should dump and load a basic db', function (done) { 78 | var n = 180; 79 | random(n).pipe(db.createWriteStream()).on('finish', function () { 80 | db.dump(stream).then(function () { 81 | out.map(function (item, i) { 82 | if (!i) { 83 | return 1; 84 | } 85 | var out = JSON.parse(item); 86 | return out.docs ? out.docs.length : 0; 87 | }).reduce(function (a, b) { 88 | return a + b; 89 | }).should.equal(n + 1, n + ' docs dumped plus meta data'); 90 | }).then(function () { 91 | return remote.load(outStream); 92 | }).then(function () { 93 | return remote.allDocs(); 94 | }).then(function (res) { 95 | res.rows.should.have.length(n, n + ' docs replicated'); 96 | done(); 97 | }).catch(done); 98 | }); 99 | }); 100 | 101 | it('should dump and load an empty db', function (done) { 102 | var n = 0; 103 | random(n).pipe(db.createWriteStream()).on('finish', function () { 104 | db.dump(stream).then(function () { 105 | out.map(function (item, i) { 106 | if (!i) { 107 | return 1; 108 | } 109 | var out = JSON.parse(item); 110 | return out.docs ? out.docs.length : 0; 111 | }).reduce(function (a, b) { 112 | return a + b; 113 | }).should.equal(n + 1, n + ' docs dumped plus meta data'); 114 | }).then(function () { 115 | return remote.load(outStream); 116 | }).then(function () { 117 | return remote.allDocs(); 118 | }).then(function (res) { 119 | res.rows.should.have.length(n, n + ' docs replicated'); 120 | done(); 121 | }).catch(done); 122 | }); 123 | }); 124 | 125 | it('should dump with seqs', function (done) { 126 | var lastSeq; 127 | random(180).pipe(db.createWriteStream()).on('finish', function () { 128 | db.dump(stream).then(function () { 129 | out.forEach(function (item) { 130 | item = JSON.parse(item); 131 | if (item.seq) { 132 | lastSeq = item.seq; 133 | } 134 | }); 135 | lastSeq.toString().should.match(/^180/); 136 | done(); 137 | }).catch(done); 138 | }); 139 | }); 140 | 141 | it('should replicate same _revs into the dest db', function () { 142 | var stream = new MemoryStream(); 143 | 144 | return db.bulkDocs([ 145 | {_id: 'testdoc1'}, 146 | {_id: 'testdoc2'} 147 | ]).then(function () { 148 | return Promise.all([ 149 | db.dump(stream), 150 | remote.load(stream) 151 | ]); 152 | }).then(function () { 153 | return Promise.all([ 154 | db.allDocs(), 155 | remote.allDocs() 156 | ]); 157 | }).then(function (docs) { 158 | var testdoc1_revs = []; 159 | var testdoc2_revs = []; 160 | testdoc1_revs.push(docs[0].rows[0].value.rev); 161 | testdoc1_revs.push(docs[1].rows[0].value.rev); 162 | testdoc2_revs.push(docs[0].rows[1].value.rev); 163 | testdoc2_revs.push(docs[1].rows[1].value.rev); 164 | testdoc1_revs[0].should.equal(testdoc1_revs[1]); 165 | testdoc2_revs[0].should.equal(testdoc2_revs[1]); 166 | }); 167 | }); 168 | 169 | it('should replicate using since/batch_size 1', function () { 170 | var stream = new MemoryStream(); 171 | 172 | var since; 173 | 174 | return db.put({_id: 'testdoc1'}).then(function () { 175 | return db.changes().then(function (changes) { 176 | since = changes.last_seq; 177 | return db.put({_id: 'testdoc2'}); 178 | }); 179 | }).then(function () { 180 | return Promise.all([ 181 | db.dump(stream, { 182 | since: since, 183 | batch_size: 1 184 | }), 185 | remote.load(stream) 186 | ]); 187 | }).then(function () { 188 | return remote.allDocs(); 189 | }).then(function (docs) { 190 | docs.rows.should.have.length(1); 191 | docs.rows[0].id.should.equal('testdoc2'); 192 | }); 193 | }); 194 | 195 | it('should replicate using since/batch_size 2', function () { 196 | var stream = new MemoryStream(); 197 | 198 | var since; 199 | 200 | return db.put({_id: 'testdoc1'}).then(function () { 201 | return db.changes().then(function (changes) { 202 | since = changes.last_seq; 203 | return db.put({_id: 'testdoc2'}); 204 | }); 205 | }).then(function () { 206 | return Promise.all([ 207 | db.dump(stream, { 208 | since: since, 209 | batch_size: 100 210 | }), 211 | remote.load(stream) 212 | ]); 213 | }).then(function () { 214 | return remote.allDocs(); 215 | }).then(function (docs) { 216 | docs.rows.should.have.length(1); 217 | docs.rows[0].id.should.equal('testdoc2'); 218 | }); 219 | }); 220 | 221 | it('should dump to a string', function () { 222 | var MemoryStream = require('memorystream'); 223 | 224 | var dumpedString = ''; 225 | var readStream = new MemoryStream(); 226 | readStream.on('data', function (chunk) { 227 | dumpedString += chunk.toString(); 228 | }); 229 | 230 | return db.put({_id: '1'}).then(function () { 231 | return db.dump(readStream); 232 | }).then(function () { 233 | dumpedString.should.be.a('string', 'got a string'); 234 | }); 235 | }); 236 | 237 | it('should dump and load using string', function () { 238 | var dumpedString = ''; 239 | var readStream = new MemoryStream(); 240 | readStream.on('data', function (chunk) { 241 | dumpedString += chunk.toString(); 242 | }); 243 | 244 | return db.put({_id: '1'}).then(function () { 245 | return db.dump(readStream); 246 | }).then(function () { 247 | dumpedString.should.be.a('string', 'got a string'); 248 | 249 | var writeStream = new MemoryStream(); 250 | writeStream.end(dumpedString); 251 | 252 | return remote.load(writeStream); 253 | }).then(function () { 254 | return remote.allDocs(); 255 | }).then(function (docs) { 256 | docs.rows.should.have.length(1); 257 | docs.rows[0].id.should.equal('1'); 258 | }); 259 | }); 260 | 261 | it('should reject the promise when the source is not a stream', function () { 262 | return remote 263 | .load('foo') 264 | .catch(function (err) { 265 | err.should.be.a('error', 'TypeError: readableStream.pipe is not a function'); 266 | }); 267 | }); 268 | 269 | it('should reject the promise when the json is wrongly formatted', function () { 270 | var writeStream = new MemoryStream(); 271 | writeStream.end('foo'); 272 | 273 | return remote 274 | .load(writeStream) 275 | .catch(function (err) { 276 | err.should.be.a('error', 'Error: Could not parse row foo...'); 277 | }); 278 | }); 279 | }); 280 | } 281 | -------------------------------------------------------------------------------- /test/webrunner.js: -------------------------------------------------------------------------------- 1 | /* global mocha: true */ 2 | 3 | (function () { 4 | 'use strict'; 5 | var runner = mocha.run(); 6 | window.results = { 7 | lastPassed: '', 8 | passed: 0, 9 | failed: 0, 10 | failures: [] 11 | }; 12 | 13 | runner.on('pass', function (e) { 14 | window.results.lastPassed = e.title; 15 | window.results.passed++; 16 | }); 17 | 18 | runner.on('fail', function (e) { 19 | window.results.failed++; 20 | window.results.failures.push({ 21 | title: e.title, 22 | message: e.err.message, 23 | stack: e.err.stack 24 | }); 25 | }); 26 | 27 | runner.on('end', function () { 28 | window.results.completed = true; 29 | window.results.passed++; 30 | }); 31 | })(); 32 | 33 | 34 | --------------------------------------------------------------------------------