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var readInstalled = require('read-installed');
var Immutable = require('immutable');
var path = require('path');
var Promise = require('../utils/promise');
var fs = require('../utils/fs');
var Plugin = require('../models/plugin');
var PREFIX = require('../constants/pluginPrefix');
/**
* Validate if a package name is a GitBook plugin
*
* @return {Boolean}
*/
function validateId(name) {
return name && name.indexOf(PREFIX) === 0;
}
/**
* List all packages installed inside a folder
*
* @param {String} folder
* @return {OrderedMap<String:Plugin>}
*/
function findInstalled(folder) {
var options = {
dev: false,
log: function() {},
depth: 4
};
var results = Immutable.OrderedMap();
function onPackage(pkg, parent) {
if (!pkg.name) return;
var name = pkg.name;
var version = pkg.version;
var pkgPath = pkg.realPath;
var depth = pkg.depth;
var dependencies = pkg.dependencies;
var pluginName = name.slice(PREFIX.length);
if (!validateId(name)){
if (parent) return;
} else {
results = results.set(pluginName, Plugin({
name: pluginName,
version: version,
path: pkgPath,
depth: depth,
parent: parent
}));
}
Immutable.Map(dependencies).forEach(function(dep) {
onPackage(dep, pluginName);
});
}
// Search for gitbook-plugins in node_modules folder
var node_modules = path.join(folder, 'node_modules');
// List all folders in node_modules
return fs.readdir(node_modules)
.fail(function() {
return Promise([]);
})
.then(function(modules) {
return Promise.serie(modules, function(module) {
// Not a gitbook-plugin
if (!validateId(module)) {
return Promise();
}
// Read gitbook-plugin package details
var module_folder = path.join(node_modules, module);
return Promise.nfcall(readInstalled, module_folder, options)
.then(function(data) {
onPackage(data);
});
});
})
.then(function() {
// Return installed plugins
return results;
});
}
module.exports = findInstalled;
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