syp 0.1

Sync your packages in dotfiles.

* Sync your packages with your dotfiles

When we use a package manager (be it apt, pip, npm,…), we want to sync
the list of installed packages in requirement files. We then declare
a mapping that links a package manager to its requirements file:

#+BEGIN_SRC python
REQUIREMENTS_ROOT_DIR = "~/dotfiles/"
REQUIREMENTS_FILES = {
"apt": "apt.txt",
"pip": "pip.txt",
"npm": "npm.txt",
}
#+END_SRC

Note: see =syp --init=

Note: tested on python 2.7 and 3.4

The basic usage is to check all of them, and install and remove
what's necessary (compared with the cache at =~/.syp/=):

Example:

: syp

can output:

#+BEGIN_HTML
<img src="http://i.imgur.com/NXiddZB.png" </img>
#+END_HTML


So obviously we can *set the package manager* we want to use and *give
one or many packages to install*:

: syp --pm pip syp foo bar

will append syp, foo and bar to the bottom of =~/dotfiles/pip.txt= and
install them.

So a suggested alias is

: alias sypip="syp --pm pip "

If no package manager is specified, we use the default one (see =settings.py=):

To *remove packages*, use =--rm=:

: syp --pm pip foo --rm


We can *add a message* with =-m=. It will be appended on the same line:

: syp --pm pip foo -m "foo is a cool package"


We can *edit the list* of packages for that package maneger before the
operations with =-e= (=--editor=):

: syp --pm pip foo --rm -e

* Develop
: pip install -e .
* TODOs and ideas

- more tests
- auto-recognize a virtualenv
- undo last action
- auto commit
- allow for more than a requirement file for one package manager.

Bust most of all… use [[https://gnu.org/software/guix/][Guix]] !