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Color support for osbash

https://blueprints.launchpad.net/openstack-training-guides/+spec/osbash-color-support

Color variation to highlight messages and enhance readability while running osbash scripts. Make this color variation compatible on most operating systems - linux, OS X mainly.

Advantages:

Enhances Readability
Easier to debug
Better understanding of sequence of events while running the scripts
Adds color code to different types of messages eg. error, warning messages
Adds to the aesthetics when running scripts

Problem description

A detailed description of the problem:

Current scripts are mono-colored and do not provide sufficient readability
Assigning different colors for different types of messages will
- improve readability while running scripts
- highlights the problems
- easier debugging
- help track the sequence of events
Assigning background color to console while script execution will
- provide uniform appearance across all consoles
- uniform color contrast
Support will be provided for most operating systems that run osbash (linux, OS X)
Target audience will be deployers

Proposed change

Implementing a colorizer for osbash scripts
Making it compatible across linux and OS X
Having an option to change background color

Alternatives

Running the existing scripts which have a mono-colored output

Disadvantages:

Does not highlight different types of messages which help make the running scripts more readable and easier to debug
Difficult to follow the sequence of events while the script runs

Implementation

Assignee(s)

Primary assignee:: sayalilunkad
Other contributors:: None

Work Items

Devise color code for different type of messages and background
Color code for background to be made optional
Implement colorizer to assign these colors
Make compatible across linux, windows and OS X

Dependencies

None

Testing

Run the scripts to check if the colorizer assigns the designated colors to the output of the script.

References