Files
cloudron-box/src/collectd.js

56 lines
2.0 KiB
JavaScript

'use strict';
exports = module.exports = {
addProfile,
removeProfile
};
const assert = require('assert'),
BoxError = require('./boxerror.js'),
debug = require('debug')('collectd'),
fs = require('fs'),
path = require('path'),
paths = require('./paths.js'),
safe = require('safetydance'),
shell = require('./shell.js');
const CONFIGURE_COLLECTD_CMD = path.join(__dirname, 'scripts/configurecollectd.sh');
function addProfile(name, profile, callback) {
assert.strictEqual(typeof name, 'string');
assert.strictEqual(typeof profile, 'string');
assert.strictEqual(typeof callback, 'function');
const configFilePath = path.join(paths.COLLECTD_APPCONFIG_DIR, `${name}.conf`);
// skip restarting collectd if the profile already exists with the same contents
const currentProfile = safe.fs.readFileSync(configFilePath, 'utf8') || '';
if (currentProfile === profile) return callback(null);
fs.writeFile(configFilePath, profile, function (error) {
if (error) return callback(new BoxError(BoxError.FS_ERROR, `Error writing collectd config: ${error.message}`));
shell.sudo('addCollectdProfile', [ CONFIGURE_COLLECTD_CMD, 'add', name ], {}, function (error) {
if (error) return callback(new BoxError(BoxError.COLLECTD_ERROR, 'Could not add collectd config'));
callback(null);
});
});
}
function removeProfile(name, callback) {
assert.strictEqual(typeof name, 'string');
assert.strictEqual(typeof callback, 'function');
fs.unlink(path.join(paths.COLLECTD_APPCONFIG_DIR, `${name}.conf`), function (error) {
if (error && error.code !== 'ENOENT') debug('Error removing collectd profile', error);
shell.sudo('removeCollectdProfile', [ CONFIGURE_COLLECTD_CMD, 'remove', name ], {}, function (error) {
if (error) return callback(new BoxError(BoxError.COLLECTD_ERROR, 'Could not remove collectd config'));
callback(null);
});
});
}