Copy itch binaries to a different project

promote_itch.sh

#!/usr/bin/env bash

# -- Set debug flags --

set -e

# -- Utility --

# see: https://stackoverflow.com/questions/2990414/echo-that-outputs-to-stderr#comment50764513_23550347
errcho(){ >&2 echo $@; }

# -- Handle environment vars --

if [[ -z "${SRC_ITCH_PROJECT}" ]]; then
  errcho "ERROR: SRC_ITCH_PROJECT not set.";
  exit 1;
fi

if [[ -z "${DEST_ITCH_PROJECT}" ]]; then
  errcho "ERROR: DEST_ITCH_PROJECT not set.";
  exit 1;
fi

# -- Reset build folder --

SCRIPTS_PATH=`dirname "$(realpath $0)"`
PROJECT_PATH=$(cd "$SCRIPTS_PATH/.." && pwd)

BUILD_PATH=$PROJECT_PATH/Builds

rm -rf $BUILD_PATH
mkdir -p $BUILD_PATH

# -- Get list of channels --

STATUS=`butler status $SRC_ITCH_PROJECT | tail -n +4 | ghead -n -1`
CHANNELS=`echo "$STATUS" | cut -d "|" -f2 | grep -oE '([^ ]+)'`
VERSION=`echo "$STATUS" | cut -d "|" -f5 | grep -oE "([^ ]+)" | uniq`

# -- Ensure that we only have one version --

VERSION_COUNT=`echo $VERSION | wc -l | xargs`

if [ "$VERSION_COUNT" != "1" ]; then
    errcho "Found $VERSION_COUNT different versions of at $SRC_ITCH_PROJECT:"
    errcho $VERSION
    exit 1
fi

# -- Fetch build from staging --

echo "$CHANNELS" | while read CHANNEL ; do
    butler fetch $SRC_ITCH_PROJECT:$CHANNEL $BUILD_PATH/$CHANNEL
done

# -- Push builds to itch --

echo "$CHANNELS" | while read CHANNEL ; do
    butler push $BUILD_PATH/$CHANNEL $DEST_ITCH_PROJECT:$CHANNEL --userversion $VERSION
done