4 files changed, 109 insertions(+), 27 deletions(-)

M .gitignore
D Dockerfile
M README.md
A paur-container

@@ 1,7 1,8 @@
 .SRCINFO
 *.gz
 
-# Paur volume's residual files
+# Paur container and its residual files
+PaurContainer/
 packages/.aur/
 packages/.cache/
 packages/.local/

@@ 1,19 0,0 @@
-FROM archlinux:base-devel
-
-RUN useradd -m mrpaur \
-    && pacman-key --init \
-    && pacman -Syu --noconfirm \
-        git \
-        pacman-contrib \
-        python \
-        sudo \
-    && pacman -Rcnsu --noconfirm $(pacman -Qtdq) || true \
-    && pacman -Sc --noconfirm
-
-
-COPY paur /usr/bin/paur
-RUN echo "mrpaur ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
-
-WORKDIR /home/mrpaur/
-USER mrpaur
-ENTRYPOINT ["paur"]

@@ 1,26 1,36 @@
 # pkgbuilds
 
-**Where I test my PKGBUILD files**
+**Where I test my AUR PKGBUILD files**
+
+## Dependencies
+
+You need an Arch Linux host system with `systemd-nspawn` and `archstrap`.
+Operations with the container from the host system require `sudo`.
 
 ## Usage
 
-First, build the docker image:
+First, initialise the container:
 
 ```bash
-docker build -t paur .
+./paur-container -m init
 ```
 
 Then, you can test the installation of any package in a clean environment:
 
 ```bash
 # For example, to test `manim`
-# Not setting --ulimit will make entering `fakeroot` painfully slow!
-docker run --ulimit "nofile=1024:1048576" -v ./packages:/home/mrpaur/ paur:latest manim
+./paur-container -m test -p manim
 ```
 
+The environment is ephemeral, meaning that it will be reset after every run.
+Both `paur` and the `packages/` directory are bound to the container, so you
+don't need to update the executable and the `PKGBUILD` and `.SRCINFO` files are
+automatically updated in the host system.
+
 > **NOTE:**
 >
 > Keep in mind that `paur` will greedily **remove *ALL* directories** it finds
 > during cleanup. If you're not sure about the side effects this could have in
-> your machine, manually copy the `packages/` directory in the `Dockerfile`
-> instead of using Docker volumes.
+> your machine, make a backup of your `packages/` directory before testing.
+
+To clean up the container, remove its directory as `root`.

@@ 0,0 1,90 @@
+#!/usr/bin/env sh
+
+
+PAURUSER="mrpaur"
+rootdir="./PaurContainer"
+mode=""
+package=""
+
+
+print_help () {
+cat << EOF
+usage: paur-container -m <mode> [-d <rootdir>] [-p <package>]
+
+Arguments:
+  -d <rootdir>    Directory to use as the root of the clean environment.
+                  Set to "$rootdir" by default.
+
+  -m <mode>       Mode to run the script in. See below.
+
+  -p <package>    Package to install.
+
+Modes:
+  init     Initialises a container environment in <rootdir>.
+  test     Test the installation of <package> in <rootdir>.
+EOF
+}
+
+
+init_script () {
+cat << EOF
+#!/usr/bin/env sh
+
+sed -i \
+    's/#\?ParallelDownloads.*/ParallelDownloads=50\nILoveCandy/' \
+    /etc/pacman.conf
+
+pacman-key --init
+pacman -Rcnsu --noconfirm \$(pacman -Qtdq) || true
+pacman -Sc --noconfirm
+
+useradd -m $PAURUSER
+echo "$PAURUSER ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
+EOF
+}
+
+
+main () {
+    while getopts d:m:p: opt; do
+        case "$opt" in
+            d) rootdir="$OPTARG";;
+            m) mode="$OPTARG";;
+            p) package="$OPTARG";;
+            *) print_help; exit 1;;
+        esac
+    done
+
+    case "$mode" in
+        init) (
+            [ -d "$rootdir" ] && (echo "$rootdir already exists!"; exit 1)
+            sudo mkdir "$rootdir"
+            sudo pacstrap -K -c "$rootdir" \
+                    base \
+                    base-devel \
+                    git \
+                    pacman-contrib \
+                    python \
+                    sudo
+
+            init_sh_file="$rootdir/root/init.sh"
+            init_script | sudo tee "$init_sh_file"
+            sudo chmod +x "$init_sh_file"
+
+            sudo systemd-nspawn -D "$rootdir" --chdir="/root" sh -c " \
+                    ./init.sh; \
+                    rm init.sh"
+        );;
+        test) (
+            [ -z "$package" ] && (print_help; exit 1)
+
+            sudo systemd-nspawn -D "$rootdir" \
+                    --bind="paur:/usr/bin/paur" \
+                    --bind="packages:/home/$PAURUSER/packages" \
+                    -u "$PAURUSER" --chdir="/home/$PAURUSER" sh -c " \
+                            sudo chown -R $PAURUSER:$PAURUSER packages; \
+                            cd packages; \
+                            paur $package"
+        );;
+        *) print_help; exit 1;;
+    esac
+}; main "$@"