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#!/bin/bash
#
# Copyright (c) 2018 - present Facebook, Inc.
# All rights reserved.
#
# This source code is licensed under the BSD style license found in the
# LICENSE file in the root directory of this source tree. An additional grant
# of patent rights can be found in the PATENTS file in the same directory.
#
# usage: gen_version.sh <file> [<version>]
FILE="$1"
if [[ ! -z "$2" ]]; then
# second arg passed when called from opam
VERSION="$2"
else
# second arg omitted when called from src/jbuild
if [[ ! "%%VERSION%%" == "%%"*"%%" ]]; then
# file has been watermarked when building distrib archive
VERSION="%%VERSION%%"
else
# file has not been watermarked when building in dev git tree
VERSION=$(git describe --tags --dirty --always)
fi
fi
(test -e $FILE || touch $FILE);
sed -e "s|%%VERSION%[%]|$VERSION|g" $FILE.in | diff $FILE - | patch --silent $FILE