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var Promise = require('../utils/promise');
var listForBook = require('./listForBook');
var findForBook = require('./findForBook');
var loadPlugin = require('./loadPlugin');
/**
Load a list of plugins in a book
@param {Book}
@return {Promise<Map<String:Plugin>}
*/
function loadForBook(book) {
var logger = book.getLogger();
var requirements = listForBook(book);
var requirementsKeys = requirements.keySeq().toList();
return findForBook(book)
.then(function(installed) {
// Filter out plugins not listed of first level
// (aka pre-installed plugins)
installed = installed.filter(function(plugin) {
return (
plugin.getDepth() > 0 ||
requirements.has(plugin.getName())
);
});
// Sort plugins to match list in book.json
installed = installed.sort(function(a, b){
return requirementsKeys.indexOf(a.getName()) < requirementsKeys.indexOf(b.getName()) ? -1 : 1;
});
// Log state
logger.info.ln(installed.size + ' plugins are installed');
if (requirements.size != installed.size) {
logger.info.ln(requirements.size + ' explicitly listed');
}
// Verify that all plugins are present
var notInstalled = requirementsKeys.filter(function(name) {
return !installed.has(name);
});
if (notInstalled.size > 0) {
throw new Error('Couldn\'t locate plugins "' + notInstalled.join(', ') + '", Run \'gitbook install\' to install plugins from registry.');
}
return Promise.map(installed, function(plugin) {
return loadPlugin(book, plugin);
});
});
}
module.exports = loadForBook;
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