Keep original file extension when rotation occurs (e.g. .error files)

README.md

@@ -1,44 +1,7 @@
 
 ## Description
 
-PM2 module to automatically rotate logs of processes managed by PM2.
+I CREATED THIS BRANCH TO FIX ISSUE #160 (https://github.com/keymetrics/pm2-logrotate/issues/160). 
 
-## Install
+See pull request #161 (https://github.com/keymetrics/pm2-logrotate/pull/161) for details.
 
-    pm2 install pm2-logrotate
-
-**NOTE:** the command is `pm2 install` NOT `npm install`
-
-## Configure
-
-- `max_size` (Defaults to `10M`): When a file size becomes higher than this value it will rotate it (its possible that the worker check the file after it actually pass the limit) . You can specify the unit at then end: `10G`, `10M`, `10K`
-- `retain` (Defaults to `30` file logs): This number is the number of rotated logs that are keep at any one time, it means that if you have retain = 7 you will have at most 7 rotated logs and your current one.
-- `compress` (Defaults to `false`): Enable compression via gzip for all rotated logs
-- `dateFormat` (Defaults to `YYYY-MM-DD_HH-mm-ss`) : Format of the data used the name the file of log
-- `rotateModule` (Defaults to `true`) : Rotate the log of pm2's module like other apps
-- `workerInterval` (Defaults to `30` in secs) : You can control at which interval the worker is checking the log's size (minimum is `1`)
-- `rotateInterval` (Defaults to `0 0 * * *` everyday at midnight): This cron is used to a force rotate when executed.
-We are using [node-schedule](https://github.com/node-schedule/node-schedule) to schedule cron, so all valid cron for [node-schedule](https://github.com/node-schedule/node-schedule) is valid cron for this option. Cron style :
-- `TZ` (Defaults to system time): This is the standard [tz database timezone](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) used to offset the log file saved. For instance, a value of `Etc/GMT+1`, with an hourly log, will save a file at hour `14` GMT with hour `13` (GMT+1) in the log name.
-
-```
-*    *    *    *    *    *
-┬    ┬    ┬    ┬    ┬    ┬
-│    │    │    │    │    |
-│    │    │    │    │    └ day of week (0 - 7) (0 or 7 is Sun)
-│    │    │    │    └───── month (1 - 12)
-│    │    │    └────────── day of month (1 - 31)
-│    │    └─────────────── hour (0 - 23)
-│    └──────────────────── minute (0 - 59)
-└───────────────────────── second (0 - 59, OPTIONAL)
-```
-
-### How to set these values ?
-
- After having installed the module you have to type :
-`pm2 set pm2-logrotate:<param> <value>`
-
-e.g:
-- `pm2 set pm2-logrotate:max_size 1K` (1KB)
-- `pm2 set pm2-logrotate:compress true` (compress logs when rotated)
-- `pm2 set pm2-logrotate:rotateInterval '*/1 * * * *'` (force rotate every minute)

app.js

@@ -104,7 +104,12 @@ function proceed(file) {
       // use default
     }
   }
-  var final_name = file.substr(0, file.length - 4) + '__' + final_time + '.log';
+  // Get base file name - i.e. without file extension : remove everything after the last dot (up to then end of string)
+  var base_file_name = file.replace(/\.[^\.]+$/, '')
+  // Get file extension : replace everything by string after the last dot
+  var file_ext = file.replace(/^.*\.([^\.]*)$/i, '$1')
+  // Build final filename with base + time + extension
+  var final_name = base_file_name + '__' + final_time + '.' + file_ext;
   // if compression is enabled, add gz extention and create a gzip instance
   if (COMPRESSION) {
     var GZIP = zlib.createGzip({ level: zlib.Z_BEST_COMPRESSION, memLevel: zlib.Z_BEST_COMPRESSION });

package.json

@@ -1,7 +1,7 @@
 {
   "name": "pm2-logrotate",
-  "version": "2.7.0",
-  "description": "Module to rotate logs of every pm2 application",
+  "version": "1.0.0",
+  "description": "Module to rotate logs of every pm2 application - derived from pm2-logrotate 2.7.0",
   "main": "app.js",
   "dependencies": {
     "graceful-fs": "^4.2.2",
@@ -13,15 +13,15 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },
-  "author": "Joni SHKURTI",
+  "author": "Joni SHKURTI and EDot",
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/pm2-hive/pm2-logrotate.git"
+    "url": "git+https://github.com/e-dot/pm2-logrotate.git"
   },
   "bugs": {
-    "url": "https://github.com/pm2-hive/pm2-logrotate/issues"
+    "url": "https://github.com/e-dot/pm2-logrotate/issues"
   },
-  "homepage": "https://github.com/pm2-hive/pm2-logrotate",
+  "homepage": "https://github.com/e-dot/pm2-logrotate",
   "license": "MIT",
   "apps": [
     {