* git: accept explicit commit hash for git context
When checking out code from non-github repositories, the typical
assumptions may not be valid, e.g. that the only interesting
non-branch commits have ref names starting with refs/pull. A specific
example is fetching an un-merged commit from a gerrit repository by
commit hash.
This change just looks at the second part of the git context path and
checks if it's a SHA commit hash, and if so, will fetch and check out
this commit after cloning the repository.
Sample context argument:
https://github.repo/project#e1772f228e06d15facdf175e5385e265b57068c0
* ci: fix test script to recognize any non-zero exit as an error
hack/linter.sh didn't properly install golangci-lint in hack/bin as I
already have another version of golangci-lint on my PATH, but then it
failed to execute because it was looking for it specifically in
hack/bin.
When the executable is not found, the exit code is 127 instead of 1,
and so test.sh ignored the error.
Two fixes:
1. `test.sh`:
- Use `if (script) ...` instead of assigning / checking a result
variable to determine if each validation script passed or failed.
2. `hack/linter.sh`:
- Instead of checking for golangci-lint on the path, just
specifically check for an executable file (`test -x`) in the
expected location.
Co-authored-by: Wade Carpenter <wwade@users.noreply.github.com>
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