Dockerfile: allow overriding def cmd via env var

Signed-off-by: Dylan Turner <dylan.turner@tutanota.com>

Dockerfile

@@ -8,12 +8,13 @@ RUN apt-get update && apt-get install -y \
 
 # Set up environment to build for Debian
 WORKDIR /proj
+ENV COMMAND="build"
 RUN \
     LATEST_TAG=$(curl -s https://api.github.com/repos/blueOkiris/acbs/releases/latest | jq -r .tag_name) \
     && curl \
         -L -o acbs-${LATEST_TAG}.linux-x86_64 \
         https://github.com/blueOkiris/acbs/releases/download/${LATEST_TAG}/acbs-${LATEST_TAG}.linux-x86_64 \
     && chmod +x acbs-${LATEST_TAG}.linux-x86_64 \
     && mv acbs-${LATEST_TAG}.linux-x86_64 /usr/bin/acbs
-ENTRYPOINT [ "acbs", "build" ]
+ENTRYPOINT [ "sh", "-c", "acbs ${COMMAND}" ]
 

README.md

@@ -79,6 +79,10 @@ You can optionally specify the folder containing an acbs.ini by providing it as
 
 Use docker. We have a Dockerfile in the main directory which will build an x86\_64 Linux compatible binary via Debian
 
-Build Image: `docker build -t acbs-bldr .`
-Run Image: `docker run --rm -v .:/proj -e HOST_UID=$(id -u) -e HOST_GID=$(id -g) acbs-bldr`
+Build Image: `docker build --no-cache -t acbs-bldr .`
+Run Image:
+
+- Build: `docker run --rm -v .:/proj -e HOST_UID=$(id -u) -e HOST_GID=$(id -g) acbs-bldr`
+- Debug Build: `docker run -e COMMAND=debug --rm -v .:/proj -e HOST_UID=$(id -u) -e HOST_GID=$(id -g) acbs-bldr`
+- Clean: `docker run -e COMMAND=clean --rm -v .:/proj -e HOST_UID=$(id -u) -e HOST_GID=$(id -g) acbs-bldr`