mecano/lib/file/assert.js

Common functions for system deployment.

// Generated by CoffeeScript 1.11.1
var fs;

module.exports = function(options) {
  options.log({
    message: "Entering assert",
    level: 'DEBUG',
    module: 'mecano/lib/assert'
  });
  if (options.encoding == null) {
    options.encoding = 'utf8';
  }
  if (options.target == null) {
    options.target = options.argument;
  }
  if (options.target == null) {
    options.target = options.source;
  }
  if (!options.target) {
    throw Error('Missing option: "target"');
  }
  if (typeof options.content === 'string') {
    options.content = Buffer.from(options.content, options.encoding);
  } else if ((options.content != null) && !Buffer.isBuffer(options.content)) {
    throw Error("Invalid option 'content': expect string or buffer");
  }
  this.call({
    unless: options.content
  }, function(_, callback) {
    return fs.exists(options.ssh, options.target.toString(), function(err, exists) {
      if (!exists) {
        err = Error("File does not exists: " + (JSON.stringify(options.target)));
      }
      return callback(err);
    });
  });
  return this.call({
    "if": options.content
  }, function(_, callback) {
    return fs.readFile(options.ssh, options.target, function(err, buffer) {
      if (!(err || buffer.equals(options.content))) {
        if (options.error == null) {
          options.error = "Invalid content match: expected " + (JSON.stringify(options.content.toString())) + ", got " + (JSON.stringify(buffer.toString()));
        }
        err = Error(options.error);
      }
      return callback(err);
    });
  });
};

fs = require('ssh2-fs');