# Inspiration:
# * https://github.com/ungoogled-software/ungoogled-chromium-archlinux/blob/master/.github/workflows/build/Dockerfile
# * https://github.com/WhyNotHugo/docker-makepkg/blob/main/Dockerfile

FROM archlinux:base-devel

# 0. DisableDownloadTimeout
# 1. Add de-p1st mirror
# 2. Add home_ungoogled_chromium_Arch (ungoogled-chromium) mirror
# 3. Add signing key of home_ungoogled_chromium_Arch mirror
# 4. Enable parallel downloads
#    TODO: Wait until next baseimage update
#        && sed --in-place 's|^#ParallelDownloads\s*=.*$|ParallelDownloads = 4|' /etc/pacman.conf \
# 5. Update mirrors + packages
# 6. Install svn for makepkg to handle svn sources
RUN printf '\n[options]\nDisableDownloadTimeout\n' >> /etc/pacman.conf && \
    printf '\n[de-p1st]\nSigLevel = Optional TrustAll\nServer = https://arch.p1st.de\n' >> /etc/pacman.conf && \
    printf '\n[home_ungoogled_chromium_Arch]\nSigLevel = Required TrustAll\nServer = https://download.opensuse.org/repositories/home:/ungoogled_chromium/Arch/$arch\n' >> /etc/pacman.conf && \
    curl -s 'https://download.opensuse.org/repositories/home:/ungoogled_chromium/Arch/x86_64/home_ungoogled_chromium_Arch.key' | pacman-key --add - && \
    pacman -Syu --noconfirm && \
    pacman -S --needed --noconfirm svn

# 1. Set packager
# 2. Store built packages in /out/
RUN sed --in-place 's|^#PACKAGER=.*$|PACKAGER="Daniel Langbein <daniel@systemli.org>"|' /etc/makepkg.conf && \
    sed --in-place 's|^#PKGDEST=.*$|PKGDEST=/out|' /etc/makepkg.conf

# Create a normal user to be used by makepkg
RUN useradd --create-home build
RUN echo "build ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers

# Create output directory
RUN mkdir -p /out

# Continue execution (and CMD) as notroot:
USER build
WORKDIR /home/build

# Auto-fetch GPG keys (to check signatures):
RUN install -dm0700 .gnupg && \
    install  -m0600 <(printf "keyserver-options auto-key-retrieve\nkeyserver hkp://keyserver.ubuntu.com\n") .gnupg/gpg.conf
#
# GnuPG key import from keys.opengpg.org does not work for all keys, see
#   https://keys.openpgp.org/about/usage#gnupg-troubleshooting
#   https://superuser.com/a/1485255
# It seems as if thos won't be fixed:
#   https://dev.gnupg.org/T4393
# Thus we use the ubuntu keyserver instead.

COPY run.sh /home/build/run.sh
ENTRYPOINT [ "/bin/bash", "/home/build/run.sh" ]
# Default arguments passed to /run.sh
# CMD [ "de-p1st-font" ]