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proto: add curl fallback and validate downloaded status.proto #622

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24 changes: 22 additions & 2 deletions proto/update_google_rpc_status.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -22,9 +22,29 @@
# The file is very stable and hasn't changed in many years, but we enforce
# freshness of this copy using a GitHub Actions workflow just in case.

set -e
set -eu

STATUS_PROTO_URL="https://raw.githubusercontent.com/googleapis/googleapis/refs/heads/master/google/rpc/status.proto"
THIS_DIR="$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd)"
DEST_FILE="$THIS_DIR/google/rpc/status.proto"

wget "$STATUS_PROTO_URL" -O "$THIS_DIR/google/rpc/status.proto"
TMP_FILE="$(mktemp)"
trap 'rm -f "$TMP_FILE"' EXIT

if command -v curl >/dev/null 2>&1; then
curl -fLsS "$STATUS_PROTO_URL" -o "$TMP_FILE"
elif command -v wget >/dev/null 2>&1; then
wget -q "$STATUS_PROTO_URL" -O "$TMP_FILE"
else
echo "Neither curl nor wget is available to download status.proto" >&2
exit 1
fi

# Basic sanity check: make sure we actually got a .proto file and not, say,
# an HTML error/rate-limit page served with a 200-ish status.
if ! grep -q '^syntax' "$TMP_FILE"; then
echo "Downloaded file does not look like a valid .proto file (missing 'syntax' line); aborting" >&2
exit 1
fi

mv "$TMP_FILE" "$DEST_FILE"
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