ci: libcava dev headers

ci/Dockerfile

@@ -30,14 +30,24 @@ RUN pacman -S --noconfirm \
     glib2
 
 # AUR: libcava (provides development headers for cava)
-RUN pacman -S --needed --noconfirm sudo && \
+RUN pacman -Syu --noconfirm && \
+    pacman -S --needed --noconfirm \
+        sudo \
+        meson \
+        autoconf-archive \
+        python-tqdm && \
     useradd -m builder && \
-    echo "builder ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers && \
-    su builder -c " \
-        git clone https://aur.archlinux.org/libcava.git /tmp/libcava && \
-        cd /tmp/libcava && \
-        makepkg -si --noconfirm \
-    " && \
+    echo "builder ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
+
+RUN for i in 1 2 3 4 5; do \
+        rm -rf /tmp/libcava && \
+        git clone --depth 1 https://aur.archlinux.org/libcava.git /tmp/libcava && \
+        break || sleep 5; \
+    done && \
+    test -d /tmp/libcava/.git && \
+    chown -R builder /tmp/libcava
+
+RUN su builder -c "cd /tmp/libcava && makepkg -si --noconfirm" && \
     rm -rf /tmp/libcava && \
     userdel -r builder && \
     sed -i '/^builder/d' /etc/sudoers