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判断文件是否存在并返回错误信息

This commit is contained in:
jaywcjlove 2016-11-28 01:38:38 +08:00
parent f888d5cfed
commit c9f74a6129
1 changed files with 8 additions and 2 deletions
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8
build/crawler.js
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@ -18,11 +18,13 @@ CreatMarkdown(from_path,to_path)
function CreatMarkdown(from_path,to_path){ function CreatMarkdown(from_path,to_path){
var new_to_path = path.join(path.dirname(__dirname),to_path) var new_to_path = path.join(path.dirname(__dirname),to_path)
if(exists(new_to_path)) return console.log(" → error: 目录存在 ",to_path,'\n')
new_to_path = path.dirname(new_to_path) new_to_path = path.dirname(new_to_path)
mkdirsSync(new_to_path,0777,function(){ mkdirsSync(new_to_path,0777,function(){
request.get(from_path).end(function(err, res){ request.get(from_path).end(function(err, res){
console.log("to_path::",to_path) // console.log("to_path::",to_path)
fs.writeFileSync(to_path, toMarkdown(res.text).toString() ,'utf-8'); fs.writeFileSync(to_path, toMarkdown(res.text).toString() ,'utf-8');
console.log(" → ",to_path) console.log(" → ",to_path)
}); });
@ -46,3 +48,7 @@ function mkdirsSync(dirpath, mode, callback) {
} }
} }
}; };
//检查指定路径的文件或者目录，是否存在
function exists(_path){return fs.existsSync(_path);}