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const Immutable = require('immutable');
const Promise = require('../utils/promise');
const listDepsForBook = require('./listDepsForBook');
const findForBook = require('./findForBook');
const loadPlugin = require('./loadPlugin');
/**
* Load all plugins in a book
*
* @param {Book}
* @return {Promise<Map<String:Plugin>}
*/
function loadForBook(book) {
const logger = book.getLogger();
// List the dependencies
const requirements = listDepsForBook(book);
// List all plugins installed in the book
return findForBook(book)
.then(function(installedMap) {
const missing = [];
let plugins = requirements.reduce(function(result, dep) {
const name = dep.getName();
const installed = installedMap.get(name);
if (installed) {
const deps = installedMap
.filter(function(plugin) {
return plugin.getParent() === name;
})
.toArray();
result = result.concat(deps);
result.push(installed);
} else {
missing.push(name);
}
return result;
}, []);
// Convert plugins list to a map
plugins = Immutable.List(plugins)
.map(function(plugin) {
return [
plugin.getName(),
plugin
];
});
plugins = Immutable.OrderedMap(plugins);
// Log state
logger.info.ln(installedMap.size + ' plugins are installed');
if (requirements.size != installedMap.size) {
logger.info.ln(requirements.size + ' explicitly listed');
}
// Verify that all plugins are present
if (missing.length > 0) {
throw new Error('Couldn\'t locate plugins "' + missing.join(', ') + '", Run \'gitbook install\' to install plugins from registry.');
}
return Promise.map(plugins, function(plugin) {
return loadPlugin(book, plugin);
});
});
}
module.exports = loadForBook;
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