zenbu 1.0.6

Description:

zenbu 1.0.6

A setup-agnostic cascading theme engine. Uses Jinja2 for templates and YAML
for variable definition.
The above gif was brought to you by wzb-utils.

Installation
pip install zenbu
or just move zenbu.py to somewhere in your $PATH.
If you do the latter, you must install the dependencies in the
following section manually.
If you are running Arch Linux, you can also use the AUR package zenbu-git (AUR).
If you are running Gentoo:
layman -o https://raw.githubusercontent.com/azahi/ricerlay/master/overlay.xml -f -a ricerlay
layman -s ricerlay
emerge app-misc/zenbu


Dependencies

Python (2 or 3)

The below are Python libraries that should be installed via pip.
Alternatively, if you did pip install zenbu, these should have been
automatically installed.

argcomplete
colorlog
Jinja2
PyYAML
termcolor
watchdog



Tab completion
sudo activate-global-python-argcomplete
If you installed via pip, you may need to run the following before autocompletion works:
grep 'PYTHON_ARGCOMPLETE_OK' "$(which zenbu)" &>/dev/null || sudo sed -i "1a # PYTHON_ARGCOMPLETE_OK" "$(which zenbu)"


Usage
Check the example folder for some sample usage!
For a more detailed explanation, check out the wiki homepage.
For common issues, check the common gotchas wiki page.
For some neat tools (including automatic desktop reloads), check the
tools wiki page.
usage: zenbu [-h] [-l] [-t TEMPLATE_DIR] [-d DEST_DIR] [-s VAR_SET_DIR]
[-f FILTERS_FILE] [-i IGNORES_FILE] [-e] [-w]
[--watch-command WATCH_COMMAND] [--watch-dirs WATCH_DIRS]
[--diff] [--dry]
[variable_files [variable_files ...]]

A Jinja2 + YAML based config templater.

Searches for an optional yaml file with a variable mapping in
~/.config/zenbu/defaults.yaml,

an optional python file with filters in (by default)
~/.config/zenbu/filters.py,

an optional yaml file with an ignore scalar of regexes in (by default)
~/.config/zenbu/ignores.yaml,

and uses the Jinja2 templates in (by default)
~/.config/zenbu/templates/

to render into your home directory (by default).

Additional variable files can be applied
by supplying them as arguments, in order of application.

They can either be paths or, if located in (by default)
~/.config/zenbu/variable_sets/,
extension-less filenames.

Environment variable support is available;
simply run with the `-e` flag and
put the name of the variable in Jinja2 brackets.

The default Jinja2 globals and filters are available.

Order of precedence is:
last YAML variable defined >
first YAML variable defined >
environment variables.

Variables are shallowly resolved once. Thus, for example you may have the
following in your defaults.yaml for convenience:

n_primary: "{{ colors[colors.primary].normal }}"

Autocomplete support available, but only for the default
variable set directory.

A file watcher is available via the -w flag.
Whenever a variable file in use, the filters file, the ignores file,
or a template file changes, the templates are rendered
if there are any differences. This can be overridden with a custom list of
directories via the --watch-dirs flag.

Diffs between the current destination files and
template renderings are available via the --diff flag.

For help on designing templates, refer to
http://jinja.pocoo.org/docs/dev/templates/

For help on creating filters, refer to
http://jinja.pocoo.org/docs/dev/api/#custom-filters

positional arguments:
variable_files additional variable files

optional arguments:
-h, --help show this help message and exit
-l list variable sets.
-t TEMPLATE_DIR template directory. Default:
/Users/echan/.config/zenbu/templates
-d DEST_DIR destination directory. Default: /Users/echan
-s VAR_SET_DIR variable set directory. Default:
/Users/echan/.config/zenbu/variable_sets
-f FILTERS_FILE filters file. Default:
/Users/echan/.config/zenbu/filters.py
-i IGNORES_FILE ignores file. Default:
/Users/echan/.config/zenbu/ignores.yaml
-e whether or not to use environment variables. Default:
don't use environment variables
-w start file watcher.
--watch-command WATCH_COMMAND
what to execute when a change occurs. Default: Nothing
--watch-dirs WATCH_DIRS
override what directories to watch, colon-separated.
Default: Nothing
--diff show diff between template renderings and current
destination files
--dry do a dry run


Zenbu in the wild



What happened to whizkers?
This project may seem awfully similar to whizkers; in fact, this is a fork
of whizkers which swaps the Mustache backend out with Jinja2. I’m keeping
whizkers around for compatibility reasons. So what are the reasons for
switching?

Comprehensive documentation: See the
Jinja2 Template Designer Documentation.
Better logic: Everything from if/else to macros. I originally praised
Mustache for its logic-less philosophy, but then I realized that there would
be no place to put logic other than the variable sets, which is a nightmare.
Expressions: You can now do {{ ':bold' if use_bold else '' }}. You can
even do {{ colors[colors.primary]['normal'] }}, which has led to the
deprecation of the {` ... `} eval syntax.
Filters: You can now do {{ colors.black.bold | to_rgb }}. A lot better
than Mustache’s syntax.
Better whitespace control: This means increased readability.

To help ease the transition to zenbu, there are some tips under the
migration wiki page.


Thanks to

https://gist.github.com/coleifer/33484bff21c34644dae1
http://jinja.pocoo.org/
http://pyyaml.org/
fullsalvo for ideas, opinions, the readme gif, contributing to documentation,
shilling, and overall being a good guy