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External git repository fetch fails if output base is below a git directory #4037
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dslomov
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area-ExternalDeps
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category: extensibility > skylark remote repositories
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Description of the problem / feature request / question:
If the Bazel output base is placed below a git repository, it will fail to fetch external git repositories when running
git clone. This has come up a few times for us when users have $HOME/.git directories for managing personal rc files, and the default output base ($HOME/.cache/bazel/...) is used.The affected code is here: https://github.com/bazelbuild/bazel/blob/master/tools/build_defs/repo/git.bzl#L30
This could be avoided by setting GIT_CEILING_DIRECTORIES, or at least erroring out if the execroot is below a git directory. Currently, git gives cryptic errors about being unable to clone.
If possible, provide a minimal example to reproduce the problem:
bazel --output_user_root=/path/to/a/git/repo/bazel_outputs/ fetch //...Environment info
Operating System:
Ubuntu 16.04
Bazel version (output of
bazel info release):0.7.0
Have you found anything relevant by searching the web?
I didn't find a similar error report here or on stack overflow.