tail - npm Package Compare versions

Comparing version 2.2.3 to 2.2.4

lib/tail.js

@@ -61,5 +61,10 @@ let events = require(`events`)
             const tokens = data.split(this.separator);
-            const dropLastToken = (tokens[tokens.length - 1] === '') ? 1 : 0;//if the file end with empty line ignore line NL
-            const match = data.match(new RegExp(`(?:[^\r\n]*[\r]{0,1}\n){${tokens.length - this.nLines - dropLastToken}}`));
-            startingCursor = (match && match.length) ? Buffer.byteLength(match[0], this.encoding) : this.latestPosition();
+            const dropLastToken = (tokens[tokens.length - 1] === '') ? 1 : 0;//if the file ends with empty line ignore line NL
+            if (tokens.length - this.nLines - dropLastToken <= 0) {
+                //nLines is bigger than avaiable tokens: tail from the begin
+                startingCursor = 0;
+            } else {
+                const match = data.match(new RegExp(`(?:[^\r\n]*[\r]{0,1}\n){${tokens.length - this.nLines - dropLastToken}}`));
+                startingCursor = (match && match.length) ? Buffer.byteLength(match[0], this.encoding) : this.latestPosition();
+            }
         } else {
@@ -188,6 +193,11 @@ startingCursor = this.latestPosition();
     watchEvent(e, evtFilename) {
-        if (e === 'change') {
-            this.change();
-        } else if (e === 'rename') {
-            this.rename(evtFilename);
+        try {
+            if (e === 'change') {
+                this.change();
+            } else if (e === 'rename') {
+                this.rename(evtFilename);
+            }
+        } catch (err) {
+            this.logger.error(`watchEvent for ${this.filename} failed: ${err}`);
+            this.emit("error", `watchEvent for ${this.filename} failed: ${err}`);
         }
@@ -194,0 +204,0 @@ }

package.json

@@ -17,3 +17,3 @@ {
   ],
-  "version": "2.2.3",
+  "version": "2.2.4",
   "homepage": "https://www.lucagrulla.com/node-tail",
@@ -38,5 +38,5 @@ "repository": {
     "chai": "4.x",
-    "mocha": "8.x",
+    "mocha": "9.x",
     "nyc": "^15.1.0"
   }
-}
+}

No alert changes

Improved metrics

Total package byte prevSize

16989

increased by2.75%

Lines of code

210

increased by5%

No dependency changes