Revert "test to shrink base image"

This reverts commit 00533ee.

dockerfiles/dockerfile

@@ -1,57 +1,12 @@
-FROM archlinux/archlinux:base-devel as arch
-LABEL maintainer="<[email protected]>"
+FROM archlinux/archlinux:base-devel
+LABEL maintainer="[email protected]"
 
-RUN sudo pacman-key --init
-
-RUN pacman -Syu --needed --noconfirm git
-
-# add archlinuxcn repo
 RUN echo $'[archlinuxcn]\n\
 Server = https://mirrors.ustc.edu.cn/archlinuxcn/$arch\n\
 Server = https://mirrors.tuna.tsinghua.edu.cn/archlinuxcn/$arch' >> /etc/pacman.conf\
     && pacman -Sy --noconfirm archlinuxcn-keyring \
-    && pacman-key --populate archlinuxcn
-
-# create AUR user
-ARG user=aur
-RUN useradd --create-home $user \
-  && echo "$user ALL=(ALL:ALL) NOPASSWD:ALL" > /etc/sudoers.d/$user
-USER $user
-WORKDIR /home/$user
-
-# build pacman-static
-COPY ./pacman-static.PKGBUILD /home/$user/PKGBUILD
-RUN git clone https://aur.archlinux.org/pacman-static.git --depth 1 \
-  && cd pacman-static \
-  && mv ../PKGBUILD . \
-  && makepkg -si --needed --noconfirm --skippgpcheck\
-  && cd
-
-# build gpg
-RUN git clone https://github.com/skeeto/lean-static-gpg gnupg --depth 1
-RUN cd gnupg && ./build.sh
-
-USER root
-
-FROM debian:unstable-slim as debian
-
-RUN apt-get update && apt-get install -y bash-static
-
-FROM scratch
-
-# copy over everything pacman needs
-COPY --from=arch /usr/bin/pacman-static /usr/bin/pacman
-COPY --from=arch /etc/pacman.conf /etc/pacman.conf
-COPY --from=arch /etc/pacman.d /etc/pacman.d
-COPY --from=arch /var/lib/pacman/sync /var/lib/pacman/sync
-COPY --from=arch /home/aur/gnupg/gnupg/bin/gpg /usr/bin/gpg
-COPY --from=arch /etc/ca-certificates/extracted/tls-ca-bundle.pem \
-  /etc/ssl/certs/ca-certificates.crt
-
-# copy over bash-static from debian
-COPY --from=debian /bin/bash-static /usr/bin/bash
-
-# set shell path
-SHELL ["/usr/bin/bash", "-c"]
-
-CMD ["/usr/bin/bash"]
+    && pacman-key --init && pacman-key --populate archlinuxcn\
+    && pacman -Syy --noconfirm git python\
+    && pacman -Scc --noconfirm && rm -rf /var/cache/pacman/pkg/* && rm -rf /var/lib/pacman/sync/*\
+    && rm -rf /usr/share/info/* && rm -rf /usr/share/man/* && rm -rf /usr/share/doc/*\
+    && rm -rf /tmp/*