Implement :alpine variant

.github/workflows/build-alpine.yml

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+name: Build and test Perl 5.32 on alpine
+
+on:
+  push:
+    branches:
+      - '**'
+    tags-ignore:
+      - '*'
+  pull_request:
+
+jobs:
+  build-alpine:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Clone docker-library/official-images (for testing)
+        run: |
+          git clone --depth 1 --single-branch https://github.com/docker-library/official-images.git
+      - name: Build image
+        run: |
+          docker version
+          docker build --no-cache -t perl:5.32-alpine 5.032.000-alpine
+          docker build --no-cache -t perl:5.32-alpine-threaded 5.032.000-alpine,threaded
+      - name: Inspect image creation and tag time
+        run: |
+          docker image inspect --format \'{{.Created}}\' perl:5.32-alpine
+          docker image inspect --format \'{{.Metadata.LastTagTime}}\' perl:5.32-alpine
+          docker image inspect --format \'{{.Created}}\' perl:5.32-alpine-threaded
+          docker image inspect --format \'{{.Metadata.LastTagTime}}\' perl:5.32-alpine-threaded
+      - name: Run tests
+        run: |
+          ./official-images/test/run.sh perl:5.32-alpine
+          ./official-images/test/run.sh perl:5.32-alpine-threaded

5.032.000-alpine,threaded/Dockerfile

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+FROM alpine:3.12
+LABEL maintainer="Peter Martini <[email protected]>, Zak B. Elep <[email protected]>"
+
+COPY *.patch /usr/src/perl/
+WORKDIR /usr/src/perl
+
+RUN set -x \
+    && apk add --no-cache --virtual .build-deps curl dpkg dpkg-dev procps tar build-base make xz \
+    && curl -SL https://www.cpan.org/src/5.0/perl-5.32.0.tar.xz -o perl-5.32.0.tar.xz \
+    && echo '6f436b447cf56d22464f980fac1916e707a040e96d52172984c5d184c09b859b *perl-5.32.0.tar.xz' | sha256sum -c - \
+    && tar --strip-components=1 -xaf perl-5.32.0.tar.xz -C /usr/src/perl \
+    && rm perl-5.32.0.tar.xz \
+    && cat *.patch | patch -p1 \
+    && gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)" \
+    && archBits="$(dpkg-architecture --query DEB_BUILD_ARCH_BITS)" \
+    && archFlag="$([ "$archBits" = '64' ] && echo '-Duse64bitall' || echo '-Duse64bitint')" \
+    && ./Configure -Darchname="$gnuArch" "$archFlag" -Dusethreads -Duseshrplib -Dvendorprefix=/usr/local  -des \
+    && make -j$(nproc) \
+    && TEST_JOBS=$(nproc) make test_harness \
+    && make install \
+    && cd /usr/src \
+    && curl -LO https://www.cpan.org/authors/id/M/MI/MIYAGAWA/App-cpanminus-1.7044.tar.gz \
+    && echo '9b60767fe40752ef7a9d3f13f19060a63389a5c23acc3e9827e19b75500f81f3 *App-cpanminus-1.7044.tar.gz' | sha256sum -c - \
+    && tar -xzf App-cpanminus-1.7044.tar.gz && cd App-cpanminus-1.7044 && perl bin/cpanm . && cd /root \
+    && runDeps="$( \
+        scanelf --needed --nobanner --recursive /usr/local \
+            | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
+            | sort -u \
+            | xargs -r apk info --installed \
+            | sort -u \
+            | grep -v perl \
+        )" \
+    && apk add --virtual .perl-rundeps $runDeps make wget \
+    && apk del .build-deps \
+    && rm -fr ./cpanm /root/.cpanm /usr/src/perl /usr/src/App-cpanminus-1.7044* /tmp/*
+
+WORKDIR /root
+
+CMD ["perl5.32.0","-de0"]

5.032.000-alpine/Dockerfile

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+FROM alpine:3.12
+LABEL maintainer="Peter Martini <[email protected]>, Zak B. Elep <[email protected]>"
+
+COPY *.patch /usr/src/perl/
+WORKDIR /usr/src/perl
+
+RUN set -x \
+    && apk add --no-cache --virtual .build-deps curl dpkg dpkg-dev procps tar build-base make xz \
+    && curl -SL https://www.cpan.org/src/5.0/perl-5.32.0.tar.xz -o perl-5.32.0.tar.xz \
+    && echo '6f436b447cf56d22464f980fac1916e707a040e96d52172984c5d184c09b859b *perl-5.32.0.tar.xz' | sha256sum -c - \
+    && tar --strip-components=1 -xaf perl-5.32.0.tar.xz -C /usr/src/perl \
+    && rm perl-5.32.0.tar.xz \
+    && cat *.patch | patch -p1 \
+    && gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)" \
+    && archBits="$(dpkg-architecture --query DEB_BUILD_ARCH_BITS)" \
+    && archFlag="$([ "$archBits" = '64' ] && echo '-Duse64bitall' || echo '-Duse64bitint')" \
+    && ./Configure -Darchname="$gnuArch" "$archFlag" -Duseshrplib -Dvendorprefix=/usr/local  -des \
+    && make -j$(nproc) \
+    && TEST_JOBS=$(nproc) make test_harness \
+    && make install \
+    && cd /usr/src \
+    && curl -LO https://www.cpan.org/authors/id/M/MI/MIYAGAWA/App-cpanminus-1.7044.tar.gz \
+    && echo '9b60767fe40752ef7a9d3f13f19060a63389a5c23acc3e9827e19b75500f81f3 *App-cpanminus-1.7044.tar.gz' | sha256sum -c - \
+    && tar -xzf App-cpanminus-1.7044.tar.gz && cd App-cpanminus-1.7044 && perl bin/cpanm . && cd /root \
+    && runDeps="$( \
+        scanelf --needed --nobanner --recursive /usr/local \
+            | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
+            | sort -u \
+            | xargs -r apk info --installed \
+            | sort -u \
+            | grep -v perl \
+        )" \
+    && apk add --virtual .perl-rundeps $runDeps make wget \
+    && apk del .build-deps \
+    && rm -fr ./cpanm /root/.cpanm /usr/src/perl /usr/src/App-cpanminus-1.7044* /tmp/*
+
+WORKDIR /root
+
+CMD ["perl5.32.0","-de0"]