fix: fix the docker entrypoint on Alpine

dev/docker/ci/alpine-gcc.dockerfile

@@ -6,5 +6,5 @@ RUN node --enable-source-maps /usr/lib/setup-cpp/setup-cpp.mjs \
 # cleanup
     rm -rf /var/cache/apk/*
 
-SHELL ["/bin/bash", "-l", "-c"]
-ENTRYPOINT ["/bin/bash", "-l"]
+SHELL ["/entrypoint.sh", "/bin/sh", "-c"]
+ENTRYPOINT ["/entrypoint.sh", "/bin/sh"]

dev/docker/ci/alpine-llvm.dockerfile

@@ -6,5 +6,5 @@ RUN node --enable-source-maps /usr/lib/setup-cpp/setup-cpp.mjs \
 # cleanup
     rm -rf /var/cache/apk/*
 
-SHELL ["/bin/bash", "-l", "-c"]
-ENTRYPOINT ["/bin/bash", "-l"]
+SHELL ["/entrypoint.sh", "/bin/sh", "-c"]
+ENTRYPOINT ["/entrypoint.sh", "/bin/sh"]

dev/docker/ci/alpine-mingw.dockerfile

@@ -1,7 +1,5 @@
 FROM aminya/setup-cpp-alpine:latest AS setup-cpp-alpine-mingw
 
-COPY "./dist/modern" "/usr/lib/setup-cpp/"
-
 # install mingw/powershell
 RUN node --enable-source-maps /usr/lib/setup-cpp/setup-cpp.mjs \
     --compiler mingw \
@@ -9,5 +7,5 @@ RUN node --enable-source-maps /usr/lib/setup-cpp/setup-cpp.mjs \
 # cleanup
     rm -rf /var/cache/apk/*
 
-SHELL ["/bin/bash", "-l", "-c"]
-ENTRYPOINT ["/bin/bash", "-l"]
+SHELL ["/entrypoint.sh", "/bin/sh", "-c"]
+ENTRYPOINT ["/entrypoint.sh", "/bin/sh"]

dev/docker/ci/alpine.dockerfile

@@ -26,5 +26,9 @@ RUN node --enable-source-maps /usr/lib/setup-cpp/setup-cpp.mjs \
 # cleanup
     rm -rf /var/cache/apk/*
 
-SHELL ["/bin/bash", "-l", "-c"]
-ENTRYPOINT ["/bin/bash", "-l"]
+# Custom entrypoint due to bash -l limitations on Alpine
+RUN printf '#!/bin/bash\nsource $HOME/.cpprc\nexec "$@"\n' > /entrypoint.sh && \
+    chmod +x /entrypoint.sh
+
+SHELL ["/entrypoint.sh", "/bin/sh", "-c"]
+ENTRYPOINT ["/entrypoint.sh", "/bin/sh"]