build

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

#assumes you already have
#binfmt-support and
#qemu-user-static installed

BUSYBOX_CHROOT_RELEASE=v1.0.2
BUSYBOX_CHROOT_SRC="https://github.com/just-containers/busybox-chroots/releases/download/${BUSYBOX_CHROOT_RELEASE}"

THISDIR=$(pwd)
CHROOTDIR=${THISDIR}/chroots
BUILDDIR=${THISDIR}/builds
PACKAGEDIR=${THISDIR}/pkg
DISTDIR=${THISDIR}/dist
TOOLSDIR=${THISDIR}/tools

mkdir -p "$BUILDDIR"
mkdir -p "$PACKAGEDIR"
mkdir -p "$DISTDIR"
mkdir -p "$CHROOTDIR"
mkdir -p "$TOOLSDIR"

declare -A qemu_targets
qemu_targets[x86_64-linux-musl]=qemu-x86_64-static
qemu_targets[arm-linux-musleabihf]=qemu-arm-static
qemu_targets[arm-linux-musleabi]=qemu-arm-static
qemu_targets[i486-linux-musl]=qemu-i386-static
qemu_targets[aarch64-linux-musl]=qemu-aarch64-static

# target platforms + simplified
# platform
declare -A targets
targets[arm-linux-musleabi]=arm
targets[arm-linux-musleabihf]=armhf
targets[aarch64-linux-musl]=aarch64
targets[x86_64-linux-musl]=amd64
targets[i486-linux-musl]=x86

# software versions
declare -A versions
versions[socklog]=2.1.0
versions[proot]="5.1.0"
versions[qemu]="2.11.1"

declare -A releases
releases[proot]="v5.1.0-2"
releases[qemu]="v2.11.1-resin"

cd "$BUILDDIR"

curl -R -L -o "$TOOLSDIR/proot-${versions[proot]}-amd64.tar.xz" \
  "https://github.com/just-containers/PRoot/releases/download/${releases[proot]}/proot-${versions[proot]}-amd64.tar.xz"
curl -R -L -o $TOOLSDIR/qemu-${versions[qemu]}-amd64.tar.xz \
  "https://github.com/just-containers/qemu/releases/download/${releases[qemu]}/qemu-${versions[qemu]}-amd64.tar.xz"
curl -R -L -o "$TOOLSDIR/github-release.tar.bz2" \
  "https://github.com/aktau/github-release/releases/download/v0.7.2/linux-amd64-github-release.tar.bz2"

tar xf $TOOLSDIR/proot-${versions[proot]}-amd64.tar.xz -C $TOOLSDIR
tar xf $TOOLSDIR/qemu-${versions[qemu]}-amd64.tar.xz -C $TOOLSDIR
tar xf $TOOLSDIR/github-release.tar.bz2 -C $TOOLSDIR/bin --strip-components=3

for target in "${!targets[@]}"; do
    echo "Building socklog for $target..."
    mkdir -p "$CHROOTDIR/$target"

    curl -R -L -o "$CHROOTDIR/chroot-${targets[$target]}.tar.gz" \
      "$BUSYBOX_CHROOT_SRC/chroot-${targets[$target]}.tar.gz"
    tar xf "$CHROOTDIR/chroot-${targets[$target]}.tar.gz" -C "$CHROOTDIR/$target"

    mkdir -p "$CHROOTDIR/$target/src"
    rm -rf "$CHROOTDIR/$target/src/admin"
    cp -r "$THISDIR/admin" "$CHROOTDIR/$target/src/"

    mkdir -p "$CHROOTDIR/$target/src/admin/socklog-${versions[socklog]}/compile"
    echo "/src/admin/socklog-${versions[socklog]}" > \
      "$CHROOTDIR/$target/src/admin/socklog-${versions[socklog]}/compile/home"
    ln -s "/src/admin/socklog-${versions[socklog]}/src" "$CHROOTDIR/$target/src/admin/socklog-${versions[socklog]}/compile/src"
    for p in "$CHROOTDIR/$target/src/admin/socklog-${versions[socklog]}/src/"* ; do
      f=$(basename "$p")
      ln -s src/$f "$CHROOTDIR/$target/src/admin/socklog-${versions[socklog]}/compile/$f"
    done

    echo "gcc -Wall -Wextra -fPIC -D_GNU_SOURCE -g0 -Os" > "$CHROOTDIR/$target/src/admin/socklog-${versions[socklog]}/src/conf-cc"
    echo "gcc -static -s"          > "$CHROOTDIR/$target/src/admin/socklog-${versions[socklog]}/src/conf-ld"

    env -i PATH="/usr/bin:/bin:/usr/sbin:/sbin" \
      $TOOLSDIR/bin/proot \
      -S $CHROOTDIR/${target} \
      -w /src/admin/socklog-${versions[socklog]}/compile \
      -q "$TOOLSDIR/bin/${qemu_targets[$target]}" \
      make -j$(nproc)

    mkdir -p $BUILDDIR/${target}/socklog-${versions[socklog]}/usr/bin
    mkdir -p $BUILDDIR/${target}/socklog-${versions[socklog]}/usr/share/doc/socklog-${versions[socklog]}

    mkdir -p $BUILDDIR/${target}/socklog-${versions[socklog]}/usr/share/man/man8
    mkdir -p $BUILDDIR/${target}/socklog-${versions[socklog]}/usr/share/man/man1

    for c in $(cat $THISDIR/admin/socklog-${versions[socklog]}/package/commands) ; do
        cp \
          $CHROOTDIR/${target}/src/admin/socklog-${versions[socklog]}/compile/$c \
          $BUILDDIR/${target}/socklog-${versions[socklog]}/usr/bin/
    done

    cp $CHROOTDIR/${target}/src/admin/socklog-${versions[socklog]}/doc/* $BUILDDIR/${target}/socklog-${versions[socklog]}/usr/share/doc/socklog-${versions[socklog]}/
    cp $CHROOTDIR/${target}/src/admin/socklog-${versions[socklog]}/man/*.8 $BUILDDIR/${target}/socklog-${versions[socklog]}/usr/share/man/man8/
    cp $CHROOTDIR/${target}/src/admin/socklog-${versions[socklog]}/man/*.1 $BUILDDIR/${target}/socklog-${versions[socklog]}/usr/share/man/man1/
    cp $CHROOTDIR/${target}/src/admin/socklog-${versions[socklog]}/package/COPYING $BUILDDIR/${target}/socklog-${versions[socklog]}/usr/share/doc/socklog-${versions[socklog]}/

    tar -cvzf $DISTDIR/socklog-${versions[socklog]}-linux-${targets[${target}]}.tar.gz \
      --owner 0 \
      --group 0 \
      -C $BUILDDIR/${target}/socklog-${versions[socklog]} .


done