git ssb

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#! /usr/bin/env node
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var fs           = require('fs')
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var path         = require('path')
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var pull         = require('pull-stream')
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var toPull       = require('stream-to-pull-stream')
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var File         = require('pull-file')
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var explain      = require('explain-error')
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var ssbKeys      = require('ssb-keys')
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var stringify    = require('pull-stringify')
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var createHash   = require('multiblob/util').createHash
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var minimist     = require('minimist')
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var muxrpcli     = require('muxrpcli')
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var cmdAliases   = require('./lib/cli-cmd-aliases')
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//get config as cli options after --, options before that are
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//options to the command.
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var argv = process.argv.slice(2)
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var i = argv.indexOf('--')
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var conf = argv.slice(i+1)
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argv = ~i ? argv.slice(0, i) : argv
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var config = require('ssb-config/inject')(process.env.ssb_appname, minimist(conf))
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var keys = ssbKeys.loadOrCreateSync(path.join(config.path, 'secret'))
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if(keys.curve === 'k256')
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  throw new Error('k256 curves are no longer supported,'+
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                  'please delete' + path.join(config.path, 'secret'))
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var manifestFile = path.join(config.path, 'manifest.json')
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if (argv[0] == 'server') {
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  // special server command:
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  // import sbot and start the server
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  var createSbot = require('./')
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    .use(require('./plugins/plugins'))
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    .use(require('./plugins/master'))
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    .use(require('./plugins/gossip'))
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    .use(require('./plugins/friends'))
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    .use(require('./plugins/replicate'))
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    .use(require('ssb-blobs'))
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    .use(require('./plugins/invite'))
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    .use(require('./plugins/block'))
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    .use(require('./plugins/local'))
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    .use(require('./plugins/logging'))
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    .use(require('./plugins/private'))
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  // add third-party plugins
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  require('./plugins/plugins').loadUserPlugins(createSbot, config)
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  // start server
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  config.keys = keys
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  var server = createSbot(config)
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  // write RPC manifest to ~/.ssb/manifest.json
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  fs.writeFileSync(manifestFile, JSON.stringify(server.getManifest(), null, 2))
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} else {
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  // normal command:
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  // create a client connection to the server
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  // read manifest.json
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  var manifest
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  try {
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    manifest = JSON.parse(fs.readFileSync(manifestFile))
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  } catch (err) {
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    throw explain(err,
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      'no manifest file'
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      + '- should be generated first time server is run'
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    )
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  }
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  // connect
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  require('ssb-client')(keys, {
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    manifest: manifest,
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    port: config.port,
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    host: config.host||'localhost',
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    key: config.key || keys.id
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  }, function (err, rpc) {
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    if(err) {
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      if (/could not connect/.test(err.message)) {
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        console.log('Error: Could not connect to the scuttlebot server.')
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        console.log('Use the "server" command to start it.')
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        if(config.verbose) throw err
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        process.exit(1)
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      }
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      throw err
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    }
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    // add aliases
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    for (var k in cmdAliases) {
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      rpc[k] = rpc[cmdAliases[k]]
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      manifest[k] = manifest[cmdAliases[k]]
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    }
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    // add some extra commands
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    manifest.version = 'async'
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    manifest.config = 'sync'
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    rpc.version = function (cb) {
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      console.log(require('./package.json').version)
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      cb()
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    }
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    rpc.config = function (cb) {
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      console.log(JSON.stringify(config, null, 2))
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      cb()
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    }
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    // HACK
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    // we need to output the hash of blobs that are added via blobs.add
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    // because muxrpc doesnt support the `sink` callback yet, we need this manual override
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    // -prf
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    if (process.argv[2] === 'blobs.add') {
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      var filename = process.argv[3]
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      var source =
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        filename ? File(process.argv[3])
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      : !process.stdin.isTTY ? toPull.source(process.stdin)
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      : (function () {
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        console.error('USAGE:')
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        console.error('  blobs.add <filename> # add a file')
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        console.error('  source | blobs.add   # read from stdin')
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        process.exit(1)
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      })()
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      var hasher = createHash('sha256')
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      pull(
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        source,
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        hasher,
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        rpc.blobs.add(function (err) {
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          if (err) 
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            throw err
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          console.log('&'+hasher.digest)
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          process.exit()
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        })
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      )
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      return
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    }
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    // run commandline flow
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    muxrpcli(argv, manifest, rpc, config.verbose)
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  })
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}
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