doerge / yapt

Yet Another Python tail'er

yapt - Yet Another Python tail'er

Yet Another Python tail'er is a small python-script for continuos colorization of your log-files.

YAPt aims to be:

• Working like tail -f.
• Simple.
• Lightweight.
• Easily modified to custom needs.

Features:

• Colorizes lines starting with INFO, WARNING and ERROR.
• Wrap lines at column 80 and indent those.
• Write tagged HTML to a file.

Usage

$ ./yapt some.log
INFO: Here is some info in green.
WARNING: Here is a warning in yellow.
ERROR: This is an error in red.
^C
$ ./yapt some.log -o colored.html

The last command switches from printing the log to std-out, to writing tagged-html to colored.html. Included is an example-file, serve_log.html, utilizing AJAX to dynamicly updating a view of colored.html.

For help:

$ ./yapt -h
usage: yapt.py [-h] [-o file] file

A colorized version of 'tail -f'

positional arguments:
  file                  The file to tail.

optional arguments:
  -h, --help            show this help message and exit
  -o file, --outfile file
                        If specified, writes tagged HTML to outfile, ready for
                        serving.

Try it

Execute test_writer.py in a shell:

$ ./test_writer.py
...

Then in another shell:

$ ./yapt.py access.log
...

This will print out a colored indented version of access.log. Executing

$ ./yapt.py access.log -o colored.log

will save tagged html into colored.log. To see this, execute this in another shell

$ python -m SimpleHTTPServer

to start serving requests. Then access the example at http://0.0.0.0:8000/serve_log.html.

yapt's Issues

Monitoring of multiple files

e.g. ./yapt.py *.log