LaTeX and git

Hi,

Some of you may remember our discussion at dinner about using git/SVN with LaTeX documents. One of the problems that was mentioned was line-based diff - whenever the formatting of the paragraph changes all of the lines are marked as modified, even if the content did not change.

* git diff --color-words

I found very nice solution to the problem: in git diff you can use the option --color-words which performs word-based diff and highlights the changes in colors.

* gitattributes

You can also put the following line into your .gitattributes file:

*.tex diff=tex

which treats some tags (likes \section{}) as separate words even if there is no whitespace in between.

I am almost converted to git - thanks for opening my eyes ;)

Cheers,

Bartek

PyAS - nuggets

PyAS - Nuggets

Ipython cpaste magic func to paste in code.

cython -a -> annotated html with colours for how long things take ... click to expand

Git & github getting started

Global setup:

Download and install Git
git config --global user.name "Your Name"
git config --global user.email eilif@gmx.de


Next steps:

mkdir test
cd test
git init
touch README
git add README
git commit -m 'first commit'
git remote add origin git@github.com:markovg/test.git
git push origin master


Existing Git Repo?

cd existing_git_repo
git remote add origin git@github.com:markovg/test.git
git push origin master


Importing a Subversion Repo?

Click here


When you're done:

Continue

Emacs tricks: cua-mode

cua-mode:

You cut some code from a website and it has a few columns of junk at the front, enter cua-mode

M-x cua-mode

Set marker, C-RET enters column mode. Select the block, C-x to cut.

python crypt authenticate htpasswd/htdigest

A python snippet to authenticate against a htpasswd hash in Python:

from crypt import crypt
pw = '2600'
htpasswd = 'Jywn1PBEdYjkg'
authd = crypt(pw,htpasswd)==htpasswd
assert authd
authd = crypt('wrongpw',htpasswd)==htpasswd
assert authd==False

freenx and GLX

How to get freenx working with GLX & OpenGL?

me@computer:~$ glxgears
Error: couldn't get an RGB, Double-buffered visual

Try this:
$ export LIBGL_ALWAYS_INDIRECT=1

Then things should be just peachy!

distutils/setuptools python setup.py install -> automatic .deb generation

I used the python-stdeb in the ubuntu 10.04 repo to install itself using the
newest version from the git repo:

http://github.com/astraw/stdeb.git

Steps:

1) Add the following to ~/.pydistutils.cfg:

vvvvvvvvvvvvvvvv
[global]
command-packages: stdeb.command
^^^^^^^^^^^^^^

2) If necessary, edit a stdeb.cfg file which contains the options for debian/control.
The stdeb git repo already has a sensible stdeb.cfg file, but for another project,
the following might be appropriate:

[DEFAULT]
Depends: python-numpy
XS-Python-Version: >= 2.6
Provides: python-myproject


3) python setup.py bdist_deb

4) dpkg -i deb_dist/python-stdeb_0.6.0+git-1_all.deb

NB: comparing that .deb
with the one in the
apt cache:
/var/cache/apt/archives/python-stdeb_0.5.1-1_all.deb

Shows similar install paths ... so I think everythings ok

NB:
Another possibility would be:
$ sudo checkinstall --install=no python setup.py install

But I suppose stdeb is more savvy in its pythonic ways ...