logview

New generation sense log viewer

Overview

The logview application is a log viewer divided into left and right panes. The left pane displays the file browser and the right pane displays the contents of the log file.

Features

• High speed performance.
  Works fast, because it doesn't read the whole file.
• Normal search function
  Search one line at a time.
• Smart search function
  Even if a single event in a log file spans multiple lines, it is possible to view the entire log event in a single log file.
• Automatic update of log display
  Even if it has been appended to the server-side log, it will continue to display the appended content. It is so-called tail -f.
• Permalink per line
  This is useful for sharing logs because you can select a line or range of lines to create a permalink like Github.
• Compatible with various character codes.
  The character code of the file is recognized automatically. This means that the file doesn't have to be UTF-8.

Screenshot

Header Pane

Icon and a list of breadcrumbs according to the path of the file browser. This area can also be customized by editing the application.yml.

File Browser Pane

The directory specified in application.yml will be used as the root directory and its contents will be displayed. Any directory can be added to the root directory separately.

You can see the following items in the file browser table.

• File name
• Last modified
• File size
• Owner
• Group
• Permissions

File Viewer Pane

Displays the log file selected by the file browser.

How to use

About application.yml

Create application.yml with the following contents, and place it in the same directory as logview.jar.

app:
  fs:
    root: ${HOME}
    dirs:
      log: /var/log

Variables in application.yml

• app.fs.root
  Specify the root directory.
• app.fs.dirs
  Specifies an additional directory to be placed directly under the root directory. This can be described in more than one way.
• app.header
  You can write HTML and place additional icons, etc. in the header section. ElementUI can be used for html and can be described as follows.

  <el-button
    icon="el-icon-s-home"
    type="mini"
    @click="location.href = 'http://foobar.com/'"></el-button>

Build

The build requires JDK11, nodejs, and npm.

$ cd /path/to/logview
$ ./gradlew bootJar
$ mv build/libs/*.jar /path/to/app/

Using docker

For now, you'll need to build your own docker image, but that's easy because you don't have to create a non-docker environment!

$ cd /path/to/logview
$ docker-compose build
$ docker-compose up -d