mecano/lib/core/extract.js

Common functions for system deployment.

// Generated by CoffeeScript 1.11.1
var fs, path;

module.exports = function(options, callback) {
  var creates, ext, extract, format, ref, stat, success, tar_opts, target;
  options.log({
    message: "Entering extract",
    level: 'DEBUG',
    module: 'mecano/lib/extract'
  });
  if (!options.source) {
    return callback(new Error("Missing source: " + options.source));
  }
  target = (ref = options.target) != null ? ref : path.dirname(options.source);
  tar_opts = [];
  if (options.preserve_owner === true) {
    tar_opts.push('--same-owner');
  } else if (options.preserve_owner === false) {
    tar_opts.push('--no-same-owner');
  }
  if (options.preserve_permissions === true) {
    tar_opts.push('-p');
  } else if (options.preserve_permissions === false) {
    tar_opts.push('--no-same-permissions');
  }
  if (typeof options.strip === 'number') {
    tar_opts.push("--strip-components " + options.strip);
  }
  if (options.format != null) {
    format = options.format;
  } else {
    if (/\.(tar\.gz|tgz)$/.test(options.source)) {
      format = 'tgz';
    } else if (/\.tar$/.test(options.source)) {
      format = 'tar';
    } else if (/\.zip$/.test(options.source)) {
      format = 'zip';
    } else if (/\.tar\.bz2$/.test(options.source)) {
      format = 'bz2';
    } else if (/\.tar\.xz$/.test(options.source)) {
      format = 'xz';
    } else {
      ext = path.extname(options.source);
      return callback(Error("Unsupported extension, got " + (JSON.stringify(ext))));
    }
  }
  stat = function() {
    return fs.stat(options.ssh, options.source, function(err, stat) {
      if (err) {
        return callback(Error("File does not exist: " + options.source));
      }
      if (!stat.isFile()) {
        return callback(Error("Not a File: " + options.source));
      }
      return extract();
    });
  };
  extract = (function(_this) {
    return function() {
      var cmd;
      cmd = null;
      options.log({
        message: "Format is " + format,
        level: 'DEBUG',
        module: 'mecano/lib/extract'
      });
      switch (format) {
        case 'tgz':
          cmd = "tar xzf " + options.source + " -C " + target + " " + (tar_opts.join(' '));
          break;
        case 'tar':
          cmd = "tar xf " + options.source + " -C " + target + " " + (tar_opts.join(' '));
          break;
        case 'bz2':
          cmd = "tar xjf " + options.source + " -C " + target + " " + (tar_opts.join(' '));
          break;
        case 'xz':
          cmd = "tar xJf " + options.source + " -C " + target + " " + (tar_opts.join(' '));
          break;
        case 'zip':
          cmd = "unzip -u " + options.source + " -d " + target;
      }
      return _this.execute({
        cmd: cmd
      }, function(err, created) {
        if (err) {
          return callback(err);
        }
        return creates();
      });
    };
  })(this);
  creates = function() {
    if (options.creates == null) {
      return success();
    }
    return fs.exists(options.ssh, options.creates, function(err, exists) {
      if (!exists) {
        return callback(new Error("Failed to create '" + (path.basename(options.creates)) + "'"));
      }
      return success();
    });
  };
  success = function() {
    return callback(null, true);
  };
  return stat();
};

fs = require('ssh2-fs');

path = require('path');