| #!/bin/sh |
| # Copyright 2020 The Fuchsia Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| set -e |
| OUTFILE="$1" |
| |
| HASH_FILE="$2" |
| DATE_FILE="$3" |
| |
| COMMIT_HASH="$(cat $HASH_FILE)" |
| COMMIT_DATE="$(cat $DATE_FILE)" |
| |
| if [ -z "$COMMIT_HASH" ]; then |
| echo >&2 "Commit hash file was invalid: $HASH_FILE" |
| exit 1 |
| fi |
| |
| if [ -z "$COMMIT_DATE" ]; then |
| echo >&2 "Commit date file was invalid: $DATE_FILE" |
| exit 1 |
| fi |
| |
| VERSION_INFO="${COMMIT_HASH}-${COMMIT_DATE}" |
| |
| # Update the existing file only if it's changed. |
| if [ ! -r "$OUTFILE" ] || [ "$(<"$OUTFILE")" != "$VERSION_INFO" ]; then |
| echo "$VERSION_INFO" > "$OUTFILE" |
| fi |
