gnu: libgit2: Add comments.

* gnu/packages/patches/libgit2-avoid-python.patch: Add comments.
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Danny Milosavljevic 2019-03-22 11:55:39 +01:00
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This provides a Guile reimplementation of clar's "generate.py".
It makes it possible for us to remove Python from libgit2's build-time
dependencies.
libgit2 is used in order to fetch a lot of sources for guix packages.
Both Python2 and Python3 builds acted up in the past.
Hence this patch which makes the number of libgit2 dependencies very
small.
The reimplementation tries to keep as close as possible to the original
in both structure and runtime effect. Some things are thus overly
convoluted just to make them the same as in the original.
Both implementations basically do:
grep -r 'test_.*__.*' . > clar.suite
It is important that the directory traversal order of the original and
the reimplementation stay the same.
diff -ruN orig/libgit2-0.27.7/tests/CMakeLists.txt libgit2-0.27.7/tests/CMakeLists.txt
--- orig/libgit2-0.27.7/tests/CMakeLists.txt 1970-01-01 01:00:00.000000000 +0100
+++ libgit2-0.27.7/tests/CMakeLists.txt 2019-03-04 11:13:06.640118979 +0100