#!/bin/sh
# vim: set ts=4 et:

export PACKER=${PACKER:-packer}

cd build || exit 1

# we need a profile, at least
if [ $# -eq 0 ]; then
    echo "Usage: $(basename "$0") <profile> [ <build> ... ]" >&2
    exit 1
fi

PROFILE=$1; shift

# no build(s) specified?  do all the builds!
[ $# -gt 0 ] && BUILDS="$*" || BUILDS=$(ls "profile/$PROFILE")

for BUILD in $BUILDS
do
    printf "\n*** %s ***\n\n" "$BUILD"
    BUILD_DIR="profile/$PROFILE/$BUILD"

    # execute packer, capture output and exit code
    (
        "$PACKER" build -var-file="$BUILD_DIR/vars.json" packer.json
        echo $? >"$BUILD_DIR/exit"
    ) | tee "$BUILD_DIR/output"
    EXIT=$(cat "$BUILD_DIR/exit")

    if [ "$EXIT" -eq 0 ]; then
        ./update-release.py "$PROFILE" "$BUILD"
    else
        # unless AMI revision already exists, exit
        grep -q 'is used by an existing AMI' "$BUILD_DIR/output" || exit "$EXIT"
    fi
done