ZerethShell — File Manager

functions.sh

#!/usr/bin/env bash
set -e

RESET=$(echo -e "\\033[0m")
BOLD=$(echo -e "\\033[1m")
YELLOW=$(echo -e "\\033[33m")
BLUE_BG=$(echo -e "\\033[44m")

function header()
{
	local title="$1"
	echo "${BLUE_BG}${YELLOW}${BOLD}${title}${RESET}"
	echo "------------------------------------------"
}

function header2()
{
	local title="$1"
	echo "### ${BOLD}${title}${RESET}"
	echo
}

function run()
{
	echo "+ $*"
	"$@"
}

function run_exec()
{
	echo "+ exec $*"
	exec "$@"
}

function retry_run()
{
	local reset='\x1B[0m'
	local red='\x1B[31m'
	local yellow='\x1B[33m'

local max_tries="$1"
	local number=2
	shift

echo "+ $*"
	while true; do
		if "$@"; then
			return 0
		elif [[ $number -le $max_tries ]]; then
			echo -e "${yellow}The command \"$*\" failed. Retrying, $number of $max_tries:${reset}"
			(( number++ ))
		else
			echo -e "${red}The command \"$*\" failed after $max_tries attempts. Giving up.${reset}"
			return 1
		fi
	done
}

function require_envvar()
{
        local name="$1"
        local value="$2"
        if [[ "$value" = "" ]]; then
                echo "ERROR: the environment variable '$name' is required."
                exit 1
        fi
}

function autodetect_environment()
{
	echo "Environment autodetection results:"
	if [[ -e /usr/bin/sw_vers ]]; then
		echo "Operating system: macOS"
		export OS=macos
	else
		echo "Operating system: Linux"
		export OS=linux
	fi
	if [ "${GITHUB_ACTIONS:-false}" = "true" ]; then
		echo "Running in Github Actions: yes"
		export CACHE_DIR="$RUNNER_TOOL_CACHE/$GITHUB_JOB/$RUNNER_OS"
	elif [[ "$JENKINS_HOME" != "" ]]; then
		echo "Running in Jenkins: yes"
		export IN_JEKINS=true
		if [ $OS = "linux" ]; then
		    export CACHE_DIR="$JENKINS_HOME/cache/$JOB_NAME/executor-$EXECUTOR_NUMBER"
		else
			require_envvar WORKSPACE "$WORKSPACE"
			export CACHE_DIR="$WORKSPACE/cache/$JOB_NAME/executor-$EXECUTOR_NUMBER"
		fi
	else
		echo "Running in CI: no"
		export IN_JENKINS=false
		export CACHE_DIR="$PASSENGER_ROOT/.ci_cache"
	fi
	echo "Cache directory: $CACHE_DIR"
}

function sanity_check_environment()
{
	if $IN_JENKINS; then
		if [[ "$JOB_NAME" = "" ]]; then
			echo "ERROR: Jenkins environment detected, but JOB_NAME environment variable not set." >&2
			return 1
		fi
		if [[ "$EXECUTOR_NUMBER" = "" ]]; then
			echo "ERROR: Jenkins environment detected, but EXECUTOR_NUMBER environment variable not set." >&2
			return 1
		fi
	elif [ "${GITHUB_ACTIONS:-false}" = "true" ]; then
		if [ -z "$GITHUB_JOB" ]; then
			echo "ERROR: Github Actions environment detected, but GITHUB_JOB environment variable not set." >&2
			return 1
		else
			export "JOB_NAME=$GITHUB_JOB"
		fi
		if [ -z "$GITHUB_RUN_ID" ]; then
			echo "ERROR: Github Actions environment detected, but GITHUB_RUN_ID environment variable not set." >&2
			return 1
		else
			export "EXECUTOR_NUMBER=$GITHUB_RUN_ID"
		fi
    fi
}

# The following is necessary to make the C++ tests work.
# They invoke Ruby scripts which require gems installed
# by Bundler, but these scripts are not invoked with
# Bundler, so they can only find these gems through GEM_PATH.
function add_bundler_path_to_gem_path()
{
	local bundle_path
	
	if bundle_path=$(bundle show rake); then
		bundle_path=$(dirname "$bundle_path")
		bundle_path=$(dirname "$bundle_path")
		echo "Adding $bundle_path to GEM_PATH"
		export GEM_PATH="$bundle_path:$GEM_PATH"

local bundle_bin_path="$bundle_path/bin"
		echo "Adding $bundle_bin_path to PATH"
		export PATH="$bundle_bin_path:$PATH"
	fi
}

function _cleanup()
{
	set +e
	local pids
	pids=$(jobs -p)
	if [[ "$pids" != "" ]]; then
		# shellcheck disable=SC2086
		kill $pids 2>/dev/null
	fi
	if [[ $(type -t cleanup) == function ]]; then
		cleanup
	fi
}

trap _cleanup EXIT

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