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start-os/build/env/check-git-hash.sh
2025-12-20 02:55:49 -07:00

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#!/bin/bash
cd "$(dirname "${BASH_SOURCE[0]}")"
if [ "$GIT_BRANCH_AS_HASH" != 1 ]; then
GIT_HASH="$(git rev-parse HEAD)$(if ! git diff-index --quiet HEAD --; then echo '-modified'; fi)"
else
GIT_HASH="@$(git rev-parse --abbrev-ref HEAD)"
fi
if ! [ -f ./GIT_HASH.txt ] || [ "$(cat ./GIT_HASH.txt)" != "$GIT_HASH" ]; then
>&2 echo Git hash changed from "$([ -f ./GIT_HASH.txt ] && cat ./GIT_HASH.txt)" to "$GIT_HASH"
echo -n "$GIT_HASH" > ./GIT_HASH.txt
fi
echo -n ./build/env/GIT_HASH.txt