caslet/lib/index.js

A simple content addressable system

// Generated by CoffeeScript 1.4.0
(function() {
  var FSCas, crypto, ensureMore, filelet, fs, funclet, loglet, path, run, runGet2, runStore2, runhashGet2, uuid;

  loglet = require('loglet');

  fs = require('fs');

  path = require('path');

  crypto = require('crypto');

  uuid = require('node-uuid');

  funclet = require('funclet');

  filelet = require('filelet');

  FSCas = require('./cas');

  ensureMore = function(args, count, usage) {
    if (args.length < count + 1) {
      return loglet.croak(usage);
    }
  };

  run = function(argv) {
    var command;
    command = argv._[0];
    return funclet.start(function(next) {
      var options;
      options = {
        baseDir: argv.baseDir || path.join(process.env.HOME, '.caslet')
      };
      return FSCas.initialize(options, next);
    })["catch"](function(err) {
      return loglet.croak(err);
    }).done(function(cas) {
      switch (command) {
        case 'store':
          ensureMore(argv._, 2, "caslet store <file_to_be_stored> <dest_path>");
          return runStore2(cas, argv._[1], argv._[2]);
        case 'pathget':
          ensureMore(argv._, 1, "caslet pathget <dest_path>");
          return runGet2(cas, argv._[1]);
        case 'hashget':
          ensureMore(argv._, 1, "caslet hashget <hash>");
          return runhashGet2(cas, argv._[1]);
        default:
          return loglet.croak({
            error: 'unknown_command',
            command: command,
            args: argv
          });
      }
    });
  };

  runGet2 = function(cas, filePath) {
    return funclet.start(function(next) {
      return cas.get({
        path: filePath
      }, next);
    })["catch"](function(err) {
      return loglet.croak(err);
    }).done(function(stream) {
      stream.on('close', function() {
        return stream.close();
      });
      return stream.pipe(process.stdout);
    });
  };

  runhashGet2 = function(cas, filePath) {
    return funclet.start(function(next) {
      return cas.get({
        hash: filePath
      }, next);
    })["catch"](function(err) {
      return loglet.croak(err);
    }).done(function(stream) {
      stream.on('close', function() {
        return stream.close();
      });
      return stream.pipe(process.stdout);
    });
  };

  runStore2 = function(cas, filePath, destPath) {
    return funclet.start(function(next) {
      var stream;
      stream = fs.createReadStream(filePath);
      return cas.storeWithPath(stream, destPath, next);
    })["catch"](function(err) {
      return loglet.croak(err);
    }).done(function(hash) {
      return loglet.log(hash);
    });
  };

  module.exports = {
    run: run,
    CAS: FSCas
  };

}).call(this);