Suggestions (#9)

Dockerfile

@@ -6,15 +6,19 @@ LABEL org.opencontainers.image.authors="Donghee Na"
 LABEL org.opencontainers.image.title="autoconf 2.72 container for CPython"
 LABEL org.opencontainers.image.description="Container image with autoconf 2.72 tools to regenerate Python's configure script."
 
-RUN apk upgrade
-RUN apk add autoconf automake autoconf-archive libtool pkgconfig alpine-sdk
-RUN wget https://ftp.gnu.org/gnu/autoconf/autoconf-2.72.tar.gz
-RUN tar -zxvf autoconf-2.72.tar.gz
+RUN apk upgrade && \
+    apk add \
+        alpine-sdk \
+        autoconf \
+        automake \
+        autoconf-archive \
+        libtool \
+        pkgconfig
+RUN curl https://ftp.gnu.org/gnu/autoconf/autoconf-2.72.tar.gz | tar -zxvf -
 RUN cd autoconf-2.72 && ./configure && make && make install
-RUN autoconf -V | grep -q "autoconf (GNU Autoconf) 2.72"
 
 VOLUME /src
 WORKDIR /src
 
 ADD entry.sh /
-CMD ["/entry.sh"]
+CMD ["/entry.sh"]

README.md

@@ -1,17 +1,22 @@
-# cpython_autoconf
-- Container image with autotools to regenerate Python's configure script.
+# CPython Autoconf
+
+- Container image with GNU Autotools to regenerate CPython's `configure` script.
 - Fork from https://github.com/tiran/cpython_autoconf
 
 ## Fedora, CentOS and other SELinux-enabled systems with podman
 
 ```shell
-$ cd cpython
-$ podman run --rm --pull=always -v$(pwd):/src:Z ghcr.io/corona10/cpython_autoconf:271
+$ podman run --rm --pull=always -v$(pwd):/src:Z ghcr.io/corona10/cpython_autoconf:272
 ```
 
 ## Arch, Debian, Gentoo, Ubuntu
 
 ```shell
-$ cd cpython
-$ podman run --rm --pull=always -v$(pwd):/src ghcr.io/corona10/cpython_autoconf:271
+$ podman run --rm --pull=always -v$(pwd):/src ghcr.io/corona10/cpython_autoconf:272
 ```
+
+## macOS and Windows
+
+```shell
+$ docker run --rm --pull=always -v.:/src ghcr.io/corona10/cpython_autoconf:272
+```

entry.sh

@@ -13,7 +13,9 @@ if [ ! -e ${SENTINEL} ]; then
     exit 2
 fi
 
-echo "Rebuilding configure script"
-cd $SRC
-autoreconf -ivf -Werror $@
-echo "Done"
+if [ "$#" = "0" ]; then
+    echo "Rebuilding configure script using $(autoconf --version | head -n 1)"
+    exec gosu autoreconf -ivf -Werror $@
+fi
+
+exec "$@"