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#!/bin/bash
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# Protocol Buffers - Google's data interchange format
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# Copyright 2023 Google LLC. All rights reserved.
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# https://developers.google.com/protocol-buffers/
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google LLC nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# This script updates checked-in generated files (currently CMakeLists.txt,
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# descriptor.upb.h, and descriptor.upb.c), commits the resulting change, and
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# pushes it. This does not do anything useful when run manually, but should be
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# run by our GitHub action instead.
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set -ex
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# Exit early if the previous commit was made by the bot. This reduces the risk
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# of a bug causing an infinite loop of auto-generated commits.
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if (git log -1 --pretty=format:'%an' | grep -q "Protobuf Team Bot"); then
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echo "Previous commit was authored by bot"
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exit 0
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fi
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cd $(dirname -- "$0")/..
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bazel test //cmake:test_generated_files || bazel-bin/cmake/test_generated_files --fix
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# Try to determine the most recent pull request number.
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title=$(git log -1 --pretty='%s')
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pr_from_merge=$(echo "$title" | sed -n 's/^Merge pull request #\([0-9]\+\).*/\1/p')
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pr_from_squash=$(echo "$title" | sed -n 's/^.*(#\([0-9]\+\))$/\1/p')
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pr_number=""
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if [ ! -z "$pr_from_merge" ]; then
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pr_number="$pr_from_merge"
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elif [ ! -z "$pr_from_squash" ]; then
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pr_number="$pr_from_squash"
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fi
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if [ ! -z "$pr_number" ]; then
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commit_message="Auto-generate CMake file lists after PR #$pr_number"
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else
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# If we are unable to determine the pull request number, we fall back on this
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# default commit message. Typically this should not occur, but could happen
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# if a pull request was merged via a rebase.
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commit_message="Auto-generate CMake file lists"
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fi
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git add -A
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git diff --staged --quiet || git commit -am "$commit_message"
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git push
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