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wwade 82fc94d930 git: accept explicit commit hash for git context (#1765)
* 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>
2021-10-19 19:27:15 -07:00

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#!/bin/bash
# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -e -o pipefail
DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
BIN=${DIR}/bin
if [ ! -x "${BIN}/golangci-lint" ]; then
echo "Installing GolangCI-Lint"
"${DIR}/install_golint.sh" -b "${BIN}" v1.23.7
fi
"${BIN}/golangci-lint" run