TypeScript fs.exists函数代码示例

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本文整理汇总了TypeScript中fs.exists函数的典型用法代码示例。如果您正苦于以下问题：TypeScript exists函数的具体用法？TypeScript exists怎么用？TypeScript exists使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了exists函数的10个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的TypeScript代码示例。

示例1: lint

mc.registerTask(function lint(params: any, callback: (err: Error, res: any) => void) {
	mc.assertType(params, 'object', 'params');
	mc.assertType(params.filePath, 'string', 'params.filePath');
	mc.assertType(params.options, 'object', 'params.options');

	fs.exists(params.filePath, (exist) => {
		if (!exist) {
			return callback(null, null);
		}
		fs.readFile(params.filePath, 'utf8', (err, contents) => {
			if (err) {
				callback(err, null);
				return;
			}
			let linter = new Linter(params.filePath, contents, params.options);
			let result = linter.lint();

			result.output = result.output.split('\n').reduce((memo: string[], line: string) => {
				if (line !== '') {
					memo.push(line + '\n');
				}
				return memo;
			}, []).join('');

			callback(err, result);
		});
	});
});

开发者ID:DefinitelyTyped，项目名称:definition-tester，代码行数:28，代码来源:TSLintWorker.ts

示例2: instrument

function instrument(tscPath: string, prepareCode: string, cleanupCode = "") {
    const bak = `${tscPath}.bak`;
    fs.exists(bak, (backupExists: boolean) => {
        let filename = tscPath;
        if (backupExists) {
            filename = bak;
        }

        fs.readFile(filename, "utf-8", (err: any, tscContent: string) => {
            if (err) throw err;

            fs.writeFile(bak, tscContent, (err: any) => {
                if (err) throw err;

                fs.readFile(path.resolve(path.dirname(tscPath) + "/loggedIO.js"), "utf-8", (err: any, loggerContent: string) => {
                    if (err) throw err;

                    const invocationLine = "ts.executeCommandLine(ts.sys.args);";
                    const index1 = tscContent.indexOf(invocationLine);
                    if (index1 < 0) {
                        throw new Error(`Could not find ${invocationLine}`);
                    }

                    const index2 = index1 + invocationLine.length;
                    const newContent = tscContent.substr(0, index1) + loggerContent + prepareCode + invocationLine + cleanupCode + tscContent.substr(index2) + "\r\n";
                    fs.writeFile(tscPath, newContent);
                });
            });
        });
    });
}

开发者ID:01alchemist，项目名称:TypeScript，代码行数:31，代码来源:instrumenter.ts

示例3: removeFilesFromDir

		export function removeFilesFromDir(dir:string, callback:AsyncCallback) {

			dir = path.resolve(dir);

			fs.exists(dir, (exists:bool) => {
				if (!exists) return callback('path does not exists: ' + dir, null);

				async.waterfall([
					(callback:AsyncCallback) => {
						return fs.stat(dir, callback);
					},
					(stats, callback:AsyncCallback) => {
						if (!stats.isDirectory()) {
							return callback('path is not a directory: ' + dir, null);
						}
						return fs.readdir(dir, callback);
					},
					(files:string[], callback:AsyncCallback) => {
						//check each file
						async.forEach(files, (file:string, callback:AsyncCallback) => {
							var full = path.join(dir, file);
							fs.stat(full, (err, stats)=> {
								if (err) return callback(err, null);
								if (stats.isFile()) {
									return fs.unlink(full, callback);
								}
								return callback(null, null);
							})
						}, callback);
					}
				], callback);
			});
		}

开发者ID:Bartvds，项目名称:tsd-deftools，代码行数:33，代码来源:helper.ts

示例4: verifyUser

export function verifyUser (req, res, next) {
    const fp = getUserFilePath(req.params.username);
    fs.exists(fp, yes => {
        if(yes) next();
        else res.redirect('/error/' + req.params.username);
    });
};

开发者ID:wpcfan，项目名称:calltalent_server，代码行数:7，代码来源:helpers.ts

示例5: makeSubpath

    form.parse(req, (err, fields:Fields, files:Files)=> {

        if (!files) {
            res.end(JSON.stringify({ok: false, error: "no_file_data"}));
        }

        var file = files["file"];
        var tmpPath = file.path;
        var subDir = makeSubpath(token);
        var newDir = '/thumbs/' + subDir;
        var newPath = newDir + "/" + jpgFile;

        fs.exists(newDir, (exists:boolean)=> {
            if (!exists) {
                // console.log("Folder " + newDir + " not exist");
                mkdirp(newDir, (err)=> {
                    if (err) {
                        res.end(JSON.stringify({ok: false, error: "cant_create_subdir"}));
                        console.error(err);
                    } else {
                        moveFile(tmpPath, newPath);
                    }
                });
            } else {
                moveFile(tmpPath, newPath);
            }
        });

        res.writeHead(200, {'content-type': 'text/plain'});
        res.end(JSON.stringify({ok: true, url: subDir + "/" + jpgFile}));
    });

开发者ID:terbooter，项目名称:LVK-thumbs，代码行数:31，代码来源:app.ts

示例6: exists

export function exists(path:string) {
    var d = Q.defer()
    fs.exists(path, function(exists) {
        d.resolve(exists)
    })
    return d.promise
}

开发者ID:davidparsson，项目名称:tpm，代码行数:7，代码来源:q-fs.ts

示例7: serverRequestHandler

 /**
  * serverRequestHandler
  * 
  * @param serverRequest
  * @param serverResponse
  */
 private serverRequestHandler(serverRequest : Http.ServerRequest, serverResponse : Http.ServerResponse) : void {
     console.log("Receive an HTTP request");
     let clientFilePath : string = Path.join(__dirname, "../../resources/public");
     let requestPath : string = Url.parse(serverRequest.url).pathname;
     let filePath : string;
     if (requestPath === "/") {
         filePath = Path.join(clientFilePath, "/index.html");
     } else {
         filePath = Path.join(clientFilePath, requestPath);
     }
     console.log("Static file requested : ", filePath);
     FileSystem.exists(filePath, exist => {
         if (exist) {
             let readStream : FileSystem.ReadStream = FileSystem.createReadStream(filePath);
             serverResponse.writeHead(200);
             readStream.pipe(serverResponse);
         } else {
             serverResponse.writeHead(404, {
                 "Content-Type": "text/plain"
             });
             serverResponse.write("404 Not Found\n");
             serverResponse.end();
         }
     });
 }

开发者ID:Gog0，项目名称:NodeCrawler，代码行数:31，代码来源:HttpServer.ts

示例8: file_exists

 private static file_exists(filepath:string):Promise {
   var fs = require('fs'), def = when.defer()
   fs.exists(filepath, (exists)=> {
     def.resolve(exists)
   })
   return def.promise
 }

开发者ID:silentorb，项目名称:vineyard-cellar，代码行数:7，代码来源:cellar.ts

示例9: function

 UploadSummaryCommand.prototype.runCommandAsync = function () {
     var _this = this;
     var filename = this.command.message;
     if (!filename) {
         return Q(null);
     }
     var deferred = Q.defer();
     fs.exists(filename, function (exists) {
         if (!exists) {
             deferred.resolve(null);
         }
         var projectId = _this.executionContext.variables[ctxm.WellKnownVariables.projectId];
         var type = "DistributedTask.Core.Summary";
         var name = "CustomMarkDownSummary-" + path.basename(filename);
         var hubName = _this.executionContext.jobInfo.description;
         var webapi = _this.executionContext.getWebApi();
         var taskClient = webapi.getQTaskApi();
         fs.stat(filename, function (err, stats) {
             if (err) {
                 deferred.reject(err);
             }
             else {
                 var headers = {};
                 headers["Content-Length"] = stats.size;
                 var stream = fs.createReadStream(filename);
                 taskClient.createAttachment(headers, stream, projectId, hubName, _this.executionContext.jobInfo.planId, _this.executionContext.jobInfo.timelineId, _this.executionContext.recordId, type, name).then(function () { return deferred.resolve(null); }, function (err) { return deferred.reject(err); });
             }
         });
     });
     return deferred.promise;
 };

开发者ID:ElleCox，项目名称:vso-agent，代码行数:31，代码来源:task.uploadsummary.ts

示例10: instrument

function instrument(tscPath: string, prepareCode: string, cleanupCode: string = '') {
    var bak = tscPath + '.bak';
    fs.exists(bak, (backupExists: boolean) => {
        var filename = tscPath;
        if (backupExists) {
            filename = bak;
        }

        fs.readFile(filename, 'utf-8', (err: any, tscContent: string) => {
            if (err) throw err;

            fs.writeFile(bak, tscContent, (err: any) => {
                if (err) throw err;

                fs.readFile(path.resolve(path.dirname(tscPath) + '/loggedIO.js'), 'utf-8', (err: any, loggerContent: string) => {
                    if (err) throw err;

                    var invocationLine = 'ts.executeCommandLine(sys.args);';
                    var index1 = tscContent.indexOf(invocationLine);
                    var index2 = index1 + invocationLine.length;
                    var newContent = tscContent.substr(0, index1) + loggerContent + prepareCode + invocationLine + cleanupCode + tscContent.substr(index2) + '\r\n';
                    fs.writeFile(tscPath, newContent);
                });
            });
        });
    });
}

开发者ID:UCSD-PL，项目名称:rs-benchmarks，代码行数:27，代码来源:instrumenter.ts

注：本文中的fs.exists函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。