gitprovenance 0.0.2

Usage

Use gitprovance.savefig instead of plt.savefig:

>>> import matplotlib.pyplot as plt, gitprovenance
>>> plt.plot([1,2,3,4])
>>> gitprovenance.savefig("foo.pdf")

This adds a commit to a hidden branch in the current git repository, which contains the current state of the tree:

$ git log refs/provenance/main
def11c6 (refs/provenance/main) Provenance commit
cd66bed (HEAD -> master, origin/master, origin/HEAD) Add files

The saved figure contains an embedded stamp that refers to the provenance commit, and the head of the current branch at the time, plus a diff between the provenance commit and the branch head:

$ grep PROVENANCE-STAMP foo.pdf
%% @@PROVENANCE-STAMP:commit:def11c6410e78925eaef7feceaadf07fffcbc4f8:head:cd66beda90ddb285d7140cabb4a2a4e504980897:diff:diff --git a/gitprovenance.py b/gitprovenance.py
%% index 011c5f8..a566740 100644
%% --- a/gitprovenance.py
%% +++ b/gitprovenance.py
...