deps: fix libgit 1.1.0 compability

[chenrui333]

closes #5

relates to Homebrew/homebrew-core#65706

[bennorth]

Hi, thanks for the PR. It would be good to move literate-git to the current pygit2, yes. I'm fine with removing Python 3.5 support, since it became end-of-life a couple of months ago, but I'm reluctant to remove Python 3.6 and Python 3.7 from the Travis config. I've made an experimental branch update-pygit2 which removes the venvgit2 requirement, as it seems that pygit2 is now packaged in a way which doesn't require it. This successfully built and passed tests under the Travis focal image, for Pythons 3.6, 3.7, 3.8, and 3.9.

I'm not familiar with the details of how Homebrew operates, sorry, but might something like this work for you? If so, I'll tidy it up and make a new release.

[aspiers]

Any idea how libgit2 gets provided in this Travis environment? I can't see it mentioned in the build log you reference, so I'm guessing it's pre-included in the focal image, but not sure. I see your build uses sudo rather than containers so there may be room for getting faster builds by switching to containers ... but then you might run into a vaguely similar challenge to what I had with aspiers/git-deps#73. See also the linked issue travis-ci/apt-package-safelist#4285.

[bennorth]

@aspiers — libgit2 arrives as part of the binary pygit2 wheel. From its docs: Libgit2 v1.1.x; binary wheels already include libgit2, so you only need to worry about this if you install the source package.

[aspiers]

Ahhh, thanks! That sounds like some newer magic which maybe didn't exist a few years ago when I last looked at this. Or maybe I just missed it.

[bennorth]

I've just pushed changes to develop (967caf4) which move to pygit2>=1.4.0, so I'm closing this. Please re-open if this doesn't address your use-case with Homebrew.