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node_modules/protobufjs/cli/pbjs/sources/proto.js

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+/*
+ Copyright 2013 Daniel Wirtz <dcode@dcode.io>
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+var description = "Plain .proto descriptor";
+
+var ProtoBuf = require(__dirname+"/../../../index.js"),
+    util = require(__dirname+"/../util.js"),
+    fs = require("fs"),
+    node_path = require("path");
+
+/**
+ * pbjs source: Plain .proto descriptor
+ * @exports pbjs/sources/proto
+ * @function
+ * @param {!Array.<string>} filenames Source files
+ * @param {!Object.<string,*>=} options Options
+ * @returns {!ProtoBuf.Builder}
+ */
+var proto = module.exports = function(filenames, options) {
+    options = options || [];
+    var builder = ProtoBuf.newBuilder(util.getBuilderOptions(options, "using")),
+        loaded = [];
+    filenames.forEach(function(filename) {
+        var data = proto.load(filename, options, loaded);
+        builder["import"](data, filename);
+    });
+    builder.resolveAll();
+    return builder;
+};
+
+/**
+ * Module description.
+ * @type {string}
+ */
+proto.description = description;
+
+/**
+ * Loads a .proto descriptor including imports.
+ * @param {string} filename Source file
+ * @param {!Object.<string,*>} options Options
+ * @param {!Array.<string>=} loaded An array of already loaded filenames
+ * @returns {*} JSON descriptor
+ */
+proto.load = function(filename, options, loaded) {
+    filename = node_path.resolve(filename);
+    loaded = loaded || [];
+    if (loaded.indexOf(filename) >= 0)
+        return {};
+    var data = ProtoBuf.DotProto.Parser.parse(fs.readFileSync(filename).toString("utf8"));
+    loaded.push(filename);
+    if (Array.isArray(data['imports'])) {
+        var imports = data['imports'];
+        for (var i=0; i<imports.length; i++) {
+            // Skip pulled imports and legacy descriptors
+            if (typeof imports[i] !== 'string' || (util.isDescriptor(imports[i]) && !options.legacy))
+                continue;
+            // Merge imports, try include paths
+            (function() {
+                var path = options.path || [];
+                for (var j=0; j<path.length; ++j) {
+                    var import_filename = node_path.resolve(path[j] + "/", imports[i]);
+                    if (!fs.existsSync(import_filename))
+                        continue;
+                    imports[i] = proto.load(import_filename, options, loaded);
+                    return;
+                }
+                throw Error("File not found: "+imports[i]);
+            })();
+        }
+    }
+    return data;
+};