From 0e8324504ea5236d01139a4d83878d0e4ee70b17 Mon Sep 17 00:00:00 2001
From: v_yongztan <v_yongztan@tencent.com>
Date: Thu, 5 Nov 2020 21:33:42 +0800
Subject: [PATCH] =?UTF-8?q?fix=20command=20=E5=85=BC=E5=AE=B9index=20?=
 =?UTF-8?q?=E4=B8=8D=E6=98=AF=E6=95=B0=E5=AD=97=E7=9A=84=E9=A2=98=E7=9B=AE?=
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---
 createByUrl.js | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/createByUrl.js b/createByUrl.js
index d68e439..7aa5b16 100644
--- a/createByUrl.js
+++ b/createByUrl.js
@@ -42,12 +42,29 @@ async function getPageInfo(url) {
         }
     });
     const funcReg = /var\s(.*)\s=\sfunction/
-    const index = questionTitle.split('.')[0]
+    let index = questionTitle.split('.')[0]
     const funcMatch = code.match(funcReg)
     let funcName = ''
     if (funcMatch && funcMatch.length === 2) {
         funcName = funcMatch[1]
     }
+
+    // 文件前缀是否数字，不是则用leetcode作为前缀
+    const numReg = /^[0-9]+?$/;
+    if (!numReg.test(index)) {
+        const leetCodeFileReg = new RegExp(`^leetcode_[0-9]+?_${funcName}.js$`) //;
+        const libDir = fs.readdirSync('lib/')
+        let i = 1
+        for (const item of libDir) {
+            if (item.indexOf('leetcode') === 0) {
+                if (leetCodeFileReg.test(item)) {
+                    throw new Error("file may exist - " + item);
+                }
+                i++
+            }
+        }
+        index = `leetcode_${i}`
+    }
     const fileName = `${index}_${funcName}.js`