who_need_help/scripts/prepare-production-release.sh

95 lines
2.8 KiB
Bash
Executable File

#!/usr/bin/env bash
set -euo pipefail
umask 077
ROOT=$(CDPATH='' cd -- "$(dirname -- "$0")/.." && pwd)
if [[ -n "$(git -C "$ROOT" status --porcelain --untracked-files=no)" ]]; then
echo "Refusing to package a release from a dirty tracked checkout." >&2
exit 1
fi
commit=$(git -C "$ROOT" rev-parse --verify HEAD)
short_commit=${commit:0:12}
artifact_root=${WNH_PRODUCTION_RELEASE_ARTIFACT_ROOT:-"$ROOT/output/releases"}
case "$artifact_root" in
/*) ;;
*)
echo "WNH_PRODUCTION_RELEASE_ARTIFACT_ROOT must be an absolute path." >&2
exit 2
;;
esac
mkdir -p "$artifact_root"
artifact_root=$(realpath --canonicalize-existing "$artifact_root")
release_dir="$artifact_root/$commit"
bundle="$release_dir/who_need_help-$commit.bundle"
checksum="$bundle.sha256"
manifest="$release_dir/manifest.txt"
mkdir -p "$release_dir"
chmod 700 "$artifact_root" "$release_dir"
if [[ -e "$bundle" || -e "$checksum" || -e "$manifest" ]]; then
echo "Release package already exists; verifying it instead of overwriting it."
else
git -C "$ROOT" bundle create "$bundle" HEAD
chmod 600 "$bundle"
hash=$(sha256sum "$bundle" | awk '{print $1}')
printf '%s %s\n' "$hash" "$(basename -- "$bundle")" >"$checksum"
{
printf 'commit=%s\n' "$commit"
printf 'short_commit=%s\n' "$short_commit"
printf 'created_at=%s\n' "$(date -u +%Y-%m-%dT%H:%M:%SZ)"
printf 'bundle_sha256=%s\n' "$hash"
} >"$manifest"
chmod 600 "$checksum" "$manifest"
fi
(
cd "$release_dir"
sha256sum --check "$(basename -- "$checksum")" >/dev/null
)
git -C "$ROOT" bundle verify "$bundle" >/dev/null
bundle_hash=$(sha256sum "$bundle" | awk '{print $1}')
expected_checksum="$bundle_hash $(basename -- "$bundle")"
if [[ "$(cat -- "$checksum")" != "$expected_checksum" ]]; then
echo "Release bundle checksum metadata does not name the exact bundle." >&2
exit 1
fi
manifest_value() {
local key=$1
awk -F= -v key="$key" '
$1 == key { count += 1; value = substr($0, length(key) + 2) }
END {
if (count != 1) exit 1
print value
}
' "$manifest"
}
[[ "$(manifest_value commit)" == "$commit" ]] || {
echo "Release manifest commit does not match the current commit." >&2
exit 1
}
[[ "$(manifest_value short_commit)" == "$short_commit" ]] || {
echo "Release manifest short commit does not match the current commit." >&2
exit 1
}
[[ "$(manifest_value bundle_sha256)" == "$bundle_hash" ]] || {
echo "Release manifest bundle checksum does not match the bundle." >&2
exit 1
}
bundle_head=$(git -C "$ROOT" bundle list-heads "$bundle" | awk '$2 == "HEAD" {print $1}')
if [[ "$bundle_head" != "$commit" ]]; then
echo "Release bundle HEAD does not match the current commit." >&2
exit 1
fi
printf 'Release commit: %s\n' "$commit"
printf 'Bundle: %s\n' "$bundle"
printf 'Checksum: %s\n' "$checksum"
printf 'Manifest: %s\n' "$manifest"