mecano/lib/ini.js

Common functions for system deployment.

// Generated by CoffeeScript 1.7.1
var child, conditions, each, fs, misc, write;

fs = require('ssh2-fs');

each = require('each');

misc = require('./misc');

conditions = require('./misc/conditions');

child = require('./misc/child');

write = require('./write');

module.exports = function(goptions, options, callback) {
  var clean, finish, result, _ref;
  _ref = misc.args(arguments), goptions = _ref[0], options = _ref[1], callback = _ref[2];
  clean = function(content, undefinedOnly) {
    var k, v;
    for (k in content) {
      v = content[k];
      if (v && typeof v === 'object') {
        content[k] = clean(v, undefinedOnly);
        continue;
      }
      if (typeof v === 'undefined') {
        delete content[k];
      }
      if (!undefinedOnly && v === null) {
        delete content[k];
      }
    }
    return content;
  };
  result = child();
  finish = function(err, written) {
    if (callback) {
      callback(err, written);
    }
    return result.end(err, written);
  };
  misc.options(options, function(err, options) {
    var written;
    if (err) {
      return finish(err);
    }
    written = 0;
    return each(options).parallel(goptions.parallel).on('item', function(options, next) {
      var content, destination, do_get, do_write, merge, ssh;
      merge = options.merge, destination = options.destination, content = options.content, ssh = options.ssh;
      if (!content) {
        return next(new Error('Missing content'));
      }
      if (!destination) {
        return next(new Error('Missing destination'));
      }
      do_get = function() {
        if (!merge) {
          return do_write();
        }
        return fs.exists(ssh, destination, function(err, exists) {
          if (err) {
            return next(err);
          }
          if (!exists) {
            return do_write();
          }
          return fs.readFile(ssh, destination, 'ascii', function(err, c) {
            var parse;
            if (err && err.code !== 'ENOENT') {
              return next(err);
            }
            content = clean(content, true);
            parse = options.parse || misc.ini.parse;
            content = misc.merge(parse(c, options), content);
            return do_write();
          });
        });
      };
      do_write = function() {
        var stringify;
        clean(content);
        stringify = options.stringify || misc.ini.stringify;
        options.content = stringify(content, options);
        return write(options, function(err, w) {
          written += w;
          return next(err);
        });
      };
      return do_get();
    }).on('both', function(err) {
      return finish(err, written);
    });
  });
  return result;
};