tronbox/build/components/Resolver/fs.js

TronBox - Simple development framework for Tron

"use strict";var path=require("path");var fs=require("fs");var eachSeries=require("async/eachSeries");function FS(working_directory,contracts_build_directory){this.working_directory=working_directory;this.contracts_build_directory=contracts_build_directory}FS.prototype.requireJson=function(import_path){var workingDirectory=this.working_directory;if(!import_path.startsWith("./")){import_path="./node_modules/".concat(import_path)}try{var result=fs.readFileSync(path.join(workingDirectory,import_path),"utf8");return JSON.parse(result)}catch(e){return null}};FS.prototype.require=function(import_path,search_path){search_path=search_path||this.contracts_build_directory;import_path=import_path.replace(/\//g,path.sep);if(path.extname(import_path)===".json"){return this.requireJson(import_path)}var contract_name=this.getContractName(import_path,search_path);if(path.isAbsolute(import_path)){if(import_path.indexOf(this.working_directory)!==0){return null}import_path="./"+import_path.replace(this.working_directory)}try{var result=fs.readFileSync(path.join(search_path,contract_name+".json"),"utf8");return JSON.parse(result)}catch(e){return null}};FS.prototype.getContractName=function(sourcePath,searchPath){searchPath=searchPath||this.contracts_build_directory;var filenames=fs.readdirSync(searchPath);for(var i=0;i<filenames.length;i++){var filename=filenames[i];var artifact=JSON.parse(fs.readFileSync(path.resolve(searchPath,filename)));if(artifact.sourcePath===sourcePath){return artifact.contractName}}return path.basename(sourcePath,".sol")};FS.prototype.resolve=function(import_path,imported_from,callback){imported_from=imported_from||"";var possible_paths=[import_path,path.join(path.dirname(imported_from),import_path)];var resolved_body=null;var resolved_path=null;eachSeries(possible_paths,function(possible_path,finished){if(resolved_body!=null){return finished()}fs.readFile(possible_path,{encoding:"utf8"},function(err,body){if(body){resolved_body=body;resolved_path=possible_path}return finished()})},function(err){if(err)return callback(err);callback(null,resolved_body,resolved_path)})};FS.prototype.resolve_dependency_path=function(import_path,dependency_path){var dirname=path.dirname(import_path);return path.resolve(path.join(dirname,dependency_path))};module.exports=FS;