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import filemanager from "./filemanager"; |
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import fs from "fs"; |
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import upath from "upath"; |
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import log from "./log"; |
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import { MD5 } from "crypto-js"; |
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import coreProcess from "process"; |
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const savetemp = "./tmp/compiler"; |
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if (fs.existsSync(savetemp)) { |
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filemanager.empty(upath.join(coreProcess.cwd(), savetemp), null); |
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} |
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class process { |
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static root = coreProcess.cwd(); |
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static verbose: boolean = false; |
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static tmp = savetemp; |
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/** |
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* Create lock file |
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* @param file |
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*/ |
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static lockCreate(file: string) { |
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return upath.join(coreProcess.cwd(), this.tmp, MD5(file).toString()); |
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} |
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/** |
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* lock the process |
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* @param lockfile |
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*/ |
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private static lockProcess(lockfile: string) { |
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if (this.verbose) { |
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log.log(log.random("locking process")); |
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} |
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if (!upath.resolve(upath.dirname(lockfile))) { |
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filemanager.mkdir(upath.dirname(lockfile)); |
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} |
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filemanager.mkfile(lockfile, "lockfile"); |
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} |
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/** |
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* release lock process |
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* @param lockfile |
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*/ |
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private static releaseLock(lockfile: string) { |
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if (this.verbose) { |
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log.log(log.random("releasing process")); |
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} |
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if (fs.existsSync(lockfile)) { |
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filemanager.unlink(lockfile, false); |
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} else { |
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if (this.verbose) { |
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log.log(log.error("process file already deleted")); |
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} |
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} |
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} |
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/** |
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* do process |
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* @param lockfile |
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* @param callback |
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*/ |
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static doProcess( |
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lockfile: string, |
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options: { verbose: boolean } | any, |
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callback: Function |
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) { |
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if (typeof options.verbose == "boolean") { |
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this.verbose = options.verbose; |
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} |
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lockfile = process.lockCreate(lockfile); |
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if (fs.existsSync(lockfile)) { |
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log.log( |
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log.error(`Process locked (${lockfile}). please provide unique ids.`) |
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); |
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return null; |
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} |
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const doCall = function () { |
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if (typeof callback == "function") { |
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return callback(lockfile); |
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} else if (typeof options == "function") { |
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return options(lockfile); |
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} |
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}; |
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process.lockProcess(lockfile); |
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const load = new Promise((resolve, reject) => { |
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doCall(); |
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resolve(true); |
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}); |
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load.then(function () { |
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process.releaseLock(lockfile); |
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}); |
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} |
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} |
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export = process; |
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