Differential D4195 Diff 13312 contrib/bots/land-bot.sh

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contrib/bots/land-bot.sh

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				#!/usr/bin/env bash
				# Copyright (c) 2019 The Bitcoin developers
				# Distributed under the MIT software license, see the accompanying
				# file COPYING or http://www.opensource.org/licenses/mit-license.php.

				export LC_ALL=C

				set -euo pipefail

				TOPLEVEL=$(git rev-parse --show-toplevel)
				DEFAULT_BUILD_DIR="${TOPLEVEL}/build"

				help_message() {
				echo "Apply a patch from Phabricator, build and test it against the latest master, then land if successful."
				echo ""
				echo "Options:"
				echo "-h, --help Display this help message."
				echo "-n, --no-land Run the script, but do not land the change at the end. This is useful for testing."
				echo "-r, --revision The Differential revision ID used in Phabricator that you want to land. (ex: D1234)"
				echo ""
				echo "Environment Variables:"
				echo "ABC_BUILD_NAME Default: build-default"
				echo "BUILD_DIR Default: ${DEFAULT_BUILD_DIR}"
				}

				: "${ABC_BUILD_NAME:=build-default}"
				: "${BUILD_DIR:=${DEFAULT_BUILD_DIR}}"
				ARC_LAND_OPTIONS=""
				REVISION=""

				# Parse command line arguments
				while [[ $# -gt 0 ]]; do
				case $1 in
				-h\|--help)
				help_message
				exit 0
				shift # shift past argument
				;;
				-n\|--no-land)
				ARC_LAND_OPTIONS="--hold"
				shift # shift past argument
				;;
				-r\|--revision)
				REVISION="$2"
				shift # shift past argument
				shift # shift past value
				;;
				*)
				echo "Unknown argument: $1"
				help_message
				exit 1
				shift # shift past argument
				;;
				esac
				done

				if [ -z "$REVISION" ]; then
				echo "Error: -r, --revision was not set."
				help_message
				exit 10
				fi

				set -x

				# Sanity operations so that we can test this script locally.
				# Under normal operation, checking out master isn't necessary.
				git checkout master
				git pull --verbose --ff-only origin master

				# Note: `: \| arc ...` pipes an empty string to stdin incase arcanist prompts
				# for user input. This fails and is treated as an error.
				: \| arc patch "$REVISION" --skip-dependencies

				git rebase master

				export ABC_BUILD_NAME
				"${TOPLEVEL}/contrib/teamcity/build-configurations.sh"

				read -a ARC_LAND_PARAMS <<< "--revision $REVISION $ARC_LAND_OPTIONS"
				: \| arc land "${ARC_LAND_PARAMS[@]}"