Correct formatting of /start shim for alpine variants

.gitattributes

@@ -1,2 +1,2 @@
-# Auto detect text files and perform LF normalization
-* text=lf
+# Auto detect text files and perform LF normalization
+* text eol=lf

Dockerfile

@@ -1,87 +1,90 @@
-ARG BASE_IMAGE=eclipse-temurin:21-jre
-FROM ${BASE_IMAGE}
-
-# hook into docker BuildKit --platform support
-# see https://docs.docker.com/engine/reference/builder/#automatic-platform-args-in-the-global-scope
-ARG TARGETOS
-ARG TARGETARCH
-ARG TARGETVARIANT
-
-# The following three arg/env vars get used by the platform specific "install-packages" script
-ARG EXTRA_DEB_PACKAGES=""
-ARG EXTRA_DNF_PACKAGES=""
-ARG EXTRA_ALPINE_PACKAGES=""
-ARG FORCE_INSTALL_PACKAGES=1
-RUN --mount=target=/build,source=build \
-    TARGET=${TARGETARCH}${TARGETVARIANT} \
-    /build/run.sh install-packages
-
-RUN --mount=target=/build,source=build \
-    /build/run.sh setup-user
-
-EXPOSE 25565
-
-ARG APPS_REV=1
-ARG GITHUB_BASEURL=https://github.com
-
-ARG EASY_ADD_VERSION=0.8.11
-ADD ${GITHUB_BASEURL}/itzg/easy-add/releases/download/${EASY_ADD_VERSION}/easy-add_${TARGETOS}_${TARGETARCH}${TARGETVARIANT} /usr/bin/easy-add
-RUN chmod +x /usr/bin/easy-add
-
-ARG RESTIFY_VERSION=1.7.10
-RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
-  --var version=${RESTIFY_VERSION} --var app=restify --file {{.app}} \
-  --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
-
-ARG RCON_CLI_VERSION=1.7.1
-RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
-  --var version=${RCON_CLI_VERSION} --var app=rcon-cli --file {{.app}} \
-  --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
-
-ARG MC_MONITOR_VERSION=0.15.6
-RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
-  --var version=${MC_MONITOR_VERSION} --var app=mc-monitor --file {{.app}} \
-  --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
-
-ARG MC_SERVER_RUNNER_VERSION=1.13.4
-RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
-  --var version=${MC_SERVER_RUNNER_VERSION} --var app=mc-server-runner --file {{.app}} \
-  --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
-
-ARG MC_HELPER_VERSION=1.49.0
-ARG MC_HELPER_BASE_URL=${GITHUB_BASEURL}/itzg/mc-image-helper/releases/download/${MC_HELPER_VERSION}
-# used for cache busting local copy of mc-image-helper
-ARG MC_HELPER_REV=1
-RUN curl -fsSL ${MC_HELPER_BASE_URL}/mc-image-helper-${MC_HELPER_VERSION}.tgz \
-  | tar -C /usr/share -zxf - \
-    && ln -s /usr/share/mc-image-helper-${MC_HELPER_VERSION}/ /usr/share/mc-image-helper \
-    && ln -s /usr/share/mc-image-helper/bin/mc-image-helper /usr/bin
-
-VOLUME ["/data"]
-WORKDIR /data
-
-STOPSIGNAL SIGTERM
-
-# End user MUST set EULA and change RCON_PASSWORD
-ENV TYPE=VANILLA VERSION=LATEST EULA="" UID=1000 GID=1000 LC_ALL=en_US.UTF-8
-
-COPY --chmod=755 scripts/start* /image/scripts/
-
-# Backward compatible shim for those with legacy entrypoint
-RUN echo "#!/bin/sh\nexec /image/scripts/start\n" > /start && chmod +x /start
-
-COPY --chmod=755 scripts/auto/* /image/scripts/auto/
-COPY --chmod=755 files/shims/ /usr/local/bin/
-COPY --chmod=755 files/* /image/
-
-RUN curl -fsSL -o /image/Log4jPatcher.jar https://github.com/CreeperHost/Log4jPatcher/releases/download/v1.0.1/Log4jPatcher-1.0.1.jar
-
-RUN dos2unix /image/scripts/start* /image/scripts/auto/*
-
-ENTRYPOINT [ "/image/scripts/start" ]
-HEALTHCHECK --start-period=2m --retries=2 --interval=30s CMD mc-health
-
-ARG BUILDTIME=local
-ARG VERSION=local
-ARG REVISION=local
-RUN echo "buildtime=${BUILDTIME}\nversion=${VERSION}\nrevision=${REVISION}" > /etc/image.properties
+ARG BASE_IMAGE=eclipse-temurin:21-jre
+FROM ${BASE_IMAGE}
+
+# hook into docker BuildKit --platform support
+# see https://docs.docker.com/engine/reference/builder/#automatic-platform-args-in-the-global-scope
+ARG TARGETOS
+ARG TARGETARCH
+ARG TARGETVARIANT
+
+# The following three arg/env vars get used by the platform specific "install-packages" script
+ARG EXTRA_DEB_PACKAGES=""
+ARG EXTRA_DNF_PACKAGES=""
+ARG EXTRA_ALPINE_PACKAGES=""
+ARG FORCE_INSTALL_PACKAGES=1
+RUN --mount=target=/build,source=build \
+    TARGET=${TARGETARCH}${TARGETVARIANT} \
+    /build/run.sh install-packages
+
+RUN --mount=target=/build,source=build \
+    /build/run.sh setup-user
+
+EXPOSE 25565
+
+ARG APPS_REV=1
+ARG GITHUB_BASEURL=https://github.com
+
+ARG EASY_ADD_VERSION=0.8.11
+ADD ${GITHUB_BASEURL}/itzg/easy-add/releases/download/${EASY_ADD_VERSION}/easy-add_${TARGETOS}_${TARGETARCH}${TARGETVARIANT} /usr/bin/easy-add
+RUN chmod +x /usr/bin/easy-add
+
+ARG RESTIFY_VERSION=1.7.10
+RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
+  --var version=${RESTIFY_VERSION} --var app=restify --file {{.app}} \
+  --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
+
+ARG RCON_CLI_VERSION=1.7.1
+RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
+  --var version=${RCON_CLI_VERSION} --var app=rcon-cli --file {{.app}} \
+  --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
+
+ARG MC_MONITOR_VERSION=0.15.6
+RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
+  --var version=${MC_MONITOR_VERSION} --var app=mc-monitor --file {{.app}} \
+  --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
+
+ARG MC_SERVER_RUNNER_VERSION=1.13.4
+RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
+  --var version=${MC_SERVER_RUNNER_VERSION} --var app=mc-server-runner --file {{.app}} \
+  --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
+
+ARG MC_HELPER_VERSION=1.49.0
+ARG MC_HELPER_BASE_URL=${GITHUB_BASEURL}/itzg/mc-image-helper/releases/download/${MC_HELPER_VERSION}
+# used for cache busting local copy of mc-image-helper
+ARG MC_HELPER_REV=1
+RUN curl -fsSL ${MC_HELPER_BASE_URL}/mc-image-helper-${MC_HELPER_VERSION}.tgz \
+  | tar -C /usr/share -zxf - \
+    && ln -s /usr/share/mc-image-helper-${MC_HELPER_VERSION}/ /usr/share/mc-image-helper \
+    && ln -s /usr/share/mc-image-helper/bin/mc-image-helper /usr/bin
+
+VOLUME ["/data"]
+WORKDIR /data
+
+STOPSIGNAL SIGTERM
+
+# End user MUST set EULA and change RCON_PASSWORD
+ENV TYPE=VANILLA VERSION=LATEST EULA="" UID=1000 GID=1000 LC_ALL=en_US.UTF-8
+
+COPY --chmod=755 scripts/start* /image/scripts/
+
+# Backward compatible shim for those with legacy entrypoint
+COPY --chmod=755 <<EOF /start
+#!/bin/bash
+exec /image/scripts/start
+EOF
+
+COPY --chmod=755 scripts/auto/* /image/scripts/auto/
+COPY --chmod=755 files/shims/ /usr/local/bin/
+COPY --chmod=755 files/* /image/
+
+RUN curl -fsSL -o /image/Log4jPatcher.jar https://github.com/CreeperHost/Log4jPatcher/releases/download/v1.0.1/Log4jPatcher-1.0.1.jar
+
+RUN dos2unix /image/scripts/start* /image/scripts/auto/*
+
+ENTRYPOINT [ "/image/scripts/start" ]
+HEALTHCHECK --start-period=2m --retries=2 --interval=30s CMD mc-health
+
+ARG BUILDTIME=local
+ARG VERSION=local
+ARG REVISION=local
+RUN echo "buildtime=${BUILDTIME}\nversion=${VERSION}\nrevision=${REVISION}" > /etc/image.properties