libgit2 build cherry pick #235
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To help listing the available commands, using the same formatting as already used in `fluxcd/flux2`. Signed-off-by: Hidde Beydals <hello@hidde.co>
- Detection of the system version of `libgit2` is attempted using `pkg-config`. If this fails, or does not match the version as defined in the `Makefile` (or configured using `LIBGIT2_VER=1.x.y`), the library is compiled using the instructions from the `BASE_IMG`, and installed to `REPOSITORY_ROOT/hack/libgit2`. - Where `libgit2` is required as a dependency, `LD_LIBRARY_PATH` and/or `PKG_CONFIG_PATH` instructions are added as a prefix to the command. This works for system libraries as well, because the paths are ignored if they do not exist. Signed-off-by: Hidde Beydals <hello@hidde.co>
This commit updates `github.com/libgit2/git2go` to `v31.6.1` (with `libgit2` `1.1.1`), and changes the container image build process so that it makes use of `ghcr.io/hiddeco/golang-with-libgit2`. This image provides a pre-build dynamic `libgit2` dependency linked against OpenSSL and LibSSH2 (without gcrypt), and a set of cross-compile build tools (see [rationale](https://github.com/hiddeco/golang-with-libgit2#rationale) and [usage](https://github.com/hiddeco/golang-with-libgit2#usage) for more detailed information). The linked set of dependency should solve most known issues around unsupport private key types, but does not resolve the issues with ECDSA* and ED25519 hostkeys yet. Solving this requires a newer version of `libgit2` (`>=1.2.0`), which currently does not seem to work properly with `git2go/v32`. Signed-off-by: Hidde Beydals <hello@hidde.co>
This moves the `libgit2` compilation to the image, to ensure it can be build on builders that aren't backed by AMD64. The image is structured in such a way that e.g. running nightly builds targeting a different Go version, or targeting a different OS vendor would be possible in the future via build arguments. Signed-off-by: Hidde Beydals <hello@hidde.co>
This ensures the Dockerfile used for testing is making use of the same scratch image to compile `libgit2` as the actual application image. In a future iteration we should restructure our GitHub Action workflows to re-use the application image, saving us an additional Dockerfile and a duplicate build. Inspiration for this (which makes use of a local registry for the duration of the build) can be found at: https://github.com/fluxcd/golang-with-libgit2/blob/main/.github/workflows/build.yaml Signed-off-by: Hidde Beydals <hello@hidde.co>
Signed-off-by: Hidde Beydals <hello@hidde.co>
This includes a tiny fix for Darwin to ensure the generated `.pc` file includes the right paths. Signed-off-by: Hidde Beydals <hello@hidde.co>
hiddeco
approved these changes
Oct 18, 2021
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Cherry-pick of all the commits from #222 .
reconcilers-dev.