Ghost/core/server/apps/index.js

92 lines
3.4 KiB
JavaScript

var _ = require('underscore'),
when = require('when'),
errors = require('../errorHandling'),
api = require('../api'),
loader = require('./loader'),
// Holds the available apps
availableApps = {};
function getInstalledApps() {
return api.settings.read('installedApps').then(function (installed) {
installed.value = installed.value || '[]';
try {
installed = JSON.parse(installed.value);
} catch (e) {
return when.reject(e);
}
return installed;
});
}
function saveInstalledApps(installedApps) {
return getInstalledApps().then(function (currentInstalledApps) {
var updatedAppsInstalled = _.uniq(installedApps.concat(currentInstalledApps));
return api.settings.edit('installedApps', updatedAppsInstalled);
});
}
module.exports = {
init: function () {
var appsToLoad;
try {
// We have to parse the value because it's a string
api.settings.read('activeApps').then(function (aApps) {
appsToLoad = JSON.parse(aApps.value) || [];
});
} catch (e) {
errors.logError(
'Failed to parse activeApps setting value: ' + e.message,
'Your apps will not be loaded.',
'Check your settings table for typos in the activeApps value. It should look like: ["app-1", "app2"] (double quotes required).'
);
return when.resolve();
}
// Grab all installed apps, install any not already installed that are in appsToLoad.
return getInstalledApps().then(function (installedApps) {
var loadedApps = {},
recordLoadedApp = function (name, loadedApp) {
// After loading the app, add it to our hash of loaded apps
loadedApps[name] = loadedApp;
return when.resolve(loadedApp);
},
loadPromises = _.map(appsToLoad, function (app) {
// If already installed, just activate the app
if (_.contains(installedApps, app)) {
return loader.activateAppByName(app).then(function (loadedApp) {
return recordLoadedApp(app, loadedApp);
});
}
// Install, then activate the app
return loader.installAppByName(app).then(function () {
return loader.activateAppByName(app);
}).then(function (loadedApp) {
return recordLoadedApp(app, loadedApp);
});
});
return when.all(loadPromises).then(function () {
// Save our installed apps to settings
return saveInstalledApps(_.keys(loadedApps));
}).then(function () {
// Extend the loadedApps onto the available apps
_.extend(availableApps, loadedApps);
}).otherwise(function (err) {
errors.logError(
err.message || err,
'The app will not be loaded',
'Check with the app creator, or read the app documentation for more details on app requirements'
);
});
});
},
availableApps: availableApps
};