#!/usr/bin/env bash

# Example
#
# archive.sh /path/to/build_dir /path/to/artifact.tar.xz


set -e

WORK_DIR=$1
TARBALL_PATH=$2

GCC_INSTALL_DIR=$WORK_DIR/x-tools

BUILD_OS=$(uname -s)

if [[ $BUILD_OS = "Darwin" ]]; then
    # Use GNU tar from Homebrew (brew install gnu-tar)
    TAR=gtar
else
    TAR=tar
fi

gcc_tuple()
{
    # Figure out the target's tuple. It's the name of the only directory.
    # Don't call this until after build_gcc()
    tuplepath=$(ls "$GCC_INSTALL_DIR")
    if [[ -e $tuplepath ]]; then
        echo "unknown"
    else
        basename "$tuplepath"
    fi
}

echo Building archive...

# Assemble the tarball for the toolchain
TARGET_TUPLE=$(gcc_tuple)
TAR_PATH="${TARBALL_PATH%.xz}"
TOOLCHAIN_NAME_WITH_HASH="$(basename "$TARBALL_PATH" .tar.xz)"
TOOLCHAIN_NAME="${TOOLCHAIN_NAME_WITH_HASH%-[0-9A-F]*}"

rm -f "$TARBALL_PATH" "$TAR_PATH"
mv "$GCC_INSTALL_DIR/$TARGET_TUPLE" "$GCC_INSTALL_DIR/$TOOLCHAIN_NAME"
$TAR c -C "$GCC_INSTALL_DIR" -f "$TAR_PATH" "$TOOLCHAIN_NAME"
mv "$GCC_INSTALL_DIR/$TOOLCHAIN_NAME" "$GCC_INSTALL_DIR/$TARGET_TUPLE"

echo Compressing archive...
xz "$TAR_PATH"