Fix Docker tags for specific Debian version (#105)

PR #105 and 6a99cd0 introduced support for specifying the Debian version
when building Docker images, ensuring that the version does not change
unexpectedly. This change altered Docker tag syntax by adding the
Debian version release name (currently "bookworm") to all Debian
Docker images. For example, `ghcr.io/br3ndonland/inboard:latest`
became `ghcr.io/br3ndonland/inboard:latest-bookworm`. inboard
is not planning to support multiple Debian versions simultaneously.
inboard will update to the next Debian version, Debian 13 ("trixie")
when it is stable and will provide a new release after the update.
This means there is no need to add the Debian version release name to
the Docker tags.

This commit will update the code in the GitHub Actions workflow
job used to produce Docker tags to match the previous tag syntax. The
latest Debian image will return to `ghcr.io/br3ndonland/inboard:latest`
and the latest Debian slim to `ghcr.io/br3ndonland/inboard:latest-slim`.
Syntax for Alpine Docker images remains unaltered, so tags like
`ghcr.io/br3ndonland/inboard:latest-alpine` are still valid.

.github/workflows/ci.yml

@@ -136,7 +136,9 @@ jobs:
         id: setup
         run: |
           LINUX_VERSION=${{ matrix.linux-version }}
-          LINUX_TAG=${LINUX_VERSION:+-$LINUX_VERSION}
+          linux_version_without_debian_release_name="${LINUX_VERSION/bookworm/}"
+          linux_tag="${linux_version_without_debian_release_name%-}"
+          LINUX_TAG="${linux_tag:+-$linux_tag}"
           PYTHON_VERSION=${{ matrix.python-version }}
           PYTHON_TAG="-python$PYTHON_VERSION"
           echo "LINUX_VERSION=$LINUX_VERSION" >> $GITHUB_ENV

Dockerfile

@@ -27,7 +27,7 @@ RUN <<HEREDOC
 if [ "$ID" = "alpine" ]; then
   apk add --no-cache --virtual .build-deps \
     gcc libc-dev libffi-dev make openssl-dev
-elif [ "$LINUX_VERSION" = "slim" ]; then
+elif [ "${LINUX_VERSION%%-*}" = "slim" ]; then
   apt-get update -qy
   apt-get install -qy --no-install-recommends \
     gcc libc-dev make wget
@@ -46,7 +46,7 @@ hatch env create base
 . /etc/os-release
 if [ "$ID" = "alpine" ]; then
   apk del .build-deps
-elif [ "$LINUX_VERSION" = "slim" ]; then
+elif [ "${LINUX_VERSION%%-*}" = "slim" ]; then
   apt-get purge --auto-remove -qy \
     gcc libc-dev make wget
 fi
@@ -59,7 +59,7 @@ hatch env create fastapi
 . /etc/os-release
 if [ "$ID" = "alpine" ]; then
   apk del .build-deps
-elif [ "$LINUX_VERSION" = "slim" ]; then
+elif [ "${LINUX_VERSION%%-*}" = "slim" ]; then
   apt-get purge --auto-remove -qy \
     gcc libc-dev make wget
 fi
@@ -72,7 +72,7 @@ hatch env create starlette
 . /etc/os-release
 if [ "$ID" = "alpine" ]; then
   apk del .build-deps
-elif [ "$LINUX_VERSION" = "slim" ]; then
+elif [ "${LINUX_VERSION%%-*}" = "slim" ]; then
   apt-get purge --auto-remove -qy \
     gcc libc-dev make wget
 fi