build.sh

#!/bin/sh

echo 'Building in docker container'

set -e
cd /mnt/raspotify

# Install most recent version of rust
curl https://sh.rustup.rs -sSf | sh -s -- -y
export PATH="/root/.cargo/bin/:$PATH"
export CARGO_TARGET_DIR="/build"
export CARGO_HOME="/build/cache"

# Install the gcc wrapper in container into cargo
mkdir /.cargo
echo '[target.arm-unknown-linux-gnueabihf]\nlinker = "gcc-wrapper"' > /.cargo/config
rustup target add arm-unknown-linux-gnueabihf

# Get the git rev of raspotify for .deb versioning
RASPOTIFY_GIT_VER="$(git describe --tags --always --dirty 2>/dev/null || echo unknown)"

if [ ! -d librespot ]; then
    echo "No directory named librespot exists! Cloning..."
    git clone git://github.com/ComlOnline/librespot.git
fi

# Get the git rev of librespot for .deb versioning
cd librespot
LIBRESPOT_GIT_REV="$(git rev-parse --short HEAD 2>/dev/null || echo unknown)"
LIBRESPOT_DEB_VER="$(TZ=UTC git show --quiet --date='format-local:%Y%m%dT%H%M%SZ' --format="%cd.%h" "$LIBRESPOT_GIT_REV" 2>/dev/null || echo "unknown")"

# Build librespot
cargo build --release --target arm-unknown-linux-gnueabihf --no-default-features --features alsa-backend

# Copy librespot to pkg root
cd /mnt/raspotify
mkdir -p raspotify/usr/bin
cp -v /build/arm-unknown-linux-gnueabihf/release/librespot raspotify/usr/bin

# Strip dramatically decreases the size
arm-linux-gnueabihf-strip raspotify/usr/bin/librespot

# Compute final package version + filename for Debian control file
DEB_PKG_VER="${RASPOTIFY_GIT_VER}~librespot.${LIBRESPOT_DEB_VER}"
DEB_PKG_NAME="raspotify_${DEB_PKG_VER}_armhf.deb"
echo "$DEB_PKG_NAME"

jinja2 \
        -D "VERSION=$DEB_PKG_VER" \
        -D "RUST_VERSION=$(rustc -V)" \
        -D "RASPOTIFY_AUTHOR=$RASPOTIFY_AUTHOR" \
    control.debian.tmpl > raspotify/DEBIAN/control

# Copy over copyright files
mkdir -p raspotify/usr/share/doc/raspotify
cp -v LICENSE raspotify/usr/share/doc/raspotify/copyright
cp -v librespot/LICENSE raspotify/usr/share/doc/raspotify/librespot.copyright

# Finally, build debian package
dpkg-deb -b raspotify "$DEB_PKG_NAME"

# Perm fixup. Not needed on macOS, but is on Linux
chown -R "$PERMFIX_UID:$PERMFIX_GID" /mnt/raspotify 2> /dev/null

echo "Package built as $DEB_PKG_NAME"