ci: use cache for OpenSSL build

.github/workflows/build.yml

@@ -73,6 +73,13 @@ jobs:
         uses: docker/[email protected]
         if: matrix.use_qemu && fromJSON(env.USE_QEMU)
 
+      - name: Cache OpenSSL build
+        if: runner.os == 'Linux'
+        uses: actions/cache@v2
+        with:
+          path: .cache-openssl
+          key: ${{ matrix.os }}-${{ matrix.arch }}-${{ hashFiles('scripts/manylinux-build-and-install-openssl.sh') }}
+
       - name: Build wheels
         uses: pypa/[email protected]
         if: (!matrix.use_qemu) || fromJSON(env.USE_QEMU)

.gitignore

@@ -60,3 +60,6 @@ docs/_build
 # IDE junk
 .idea/*
 *.swp
+
+# OpenSSL build cache
+.cache-openssl/

pyproject.toml

@@ -33,6 +33,7 @@ manylinux-i686-image = "manylinux1"
 
 [tool.cibuildwheel.linux.environment]
 SKBUILD_CONFIGURE_OPTIONS = "-DOPENSSL_ROOT_DIR:PATH=/usr/local/ssl -DCMAKE_JOB_POOL_COMPILE:STRING=compile -DCMAKE_JOB_POOL_LINK:STRING=link -DCMAKE_JOB_POOLS:STRING=compile=2;link=1"
+OPENSSL_CACHE_DIR = "home/runner/work/cmake-python-distributions/cmake-python-distributions/.cache-openssl"
 
 [tool.cibuildwheel.macos.environment]
 MACOSX_DEPLOYMENT_TARGET = "10.10"

scripts/manylinux-build-and-install-openssl.sh

@@ -14,42 +14,53 @@ OPENSSL_ROOT=openssl-1.1.1k
 # Hash from https://www.openssl.org/source/openssl-1.1.1k.tar.gz.sha256
 OPENSSL_HASH=892a0875b9872acd04a9fde79b1f943075d5ea162415de3047c327df33fbaee5
 
-cd /tmp
+OPENSSL_ARCHIVE=/host/${OPENSSL_CACHE_DIR}/${OPENSSL_ROOT}-${AUDITWHEEL_PLAT}.tar.gz
 
-if ! perl -e 'use 5.10.0' &> /dev/null; then
-	# perl>=5.10.0 is needed to build openssl
-	PERL_ROOT=perl-5.32.1
-	# Hash from https://www.cpan.org/src/5.0/perl-5.32.1.tar.gz.sha256.txt
-	PERL_HASH=03b693901cd8ae807231b1787798cf1f2e0b8a56218d07b7da44f784a7caeb2c
 
-	curl -fsSLO https://www.cpan.org/src/5.0/${PERL_ROOT}.tar.gz
-	check_sha256sum ${PERL_ROOT}.tar.gz ${PERL_HASH}
-	tar -xzf ${PERL_ROOT}.tar.gz
-	rm -rf ${PERL_ROOT}.tar.gz
+if ! [ -e "${OPENSSL_ARCHIVE}" ]; then
+	cd /tmp
 
-	pushd ${PERL_ROOT}
-	./Configure -des -Dprefix=/tmp/perl-openssl > /dev/null
-	make -j$(nproc) > /dev/null
-	make install > /dev/null
-	popd
-	export PATH=/tmp/perl-openssl/bin:${PATH}
-fi
+	if ! perl -e 'use 5.10.0' &> /dev/null; then
+		# perl>=5.10.0 is needed to build openssl
+		PERL_ROOT=perl-5.32.1
+		# Hash from https://www.cpan.org/src/5.0/perl-5.32.1.tar.gz.sha256.txt
+		PERL_HASH=03b693901cd8ae807231b1787798cf1f2e0b8a56218d07b7da44f784a7caeb2c
+
+		curl -fsSLO https://www.cpan.org/src/5.0/${PERL_ROOT}.tar.gz
+		check_sha256sum ${PERL_ROOT}.tar.gz ${PERL_HASH}
+		tar -xzf ${PERL_ROOT}.tar.gz
+		rm -rf ${PERL_ROOT}.tar.gz
+
+		pushd ${PERL_ROOT}
+		./Configure -des -Dprefix=/tmp/perl-openssl > /dev/null
+		make -j$(nproc) > /dev/null
+		make install > /dev/null
+		popd
+		export PATH=/tmp/perl-openssl/bin:${PATH}
+	fi
 
-# Download
-curl -fsSLO http://www.openssl.org/source/${OPENSSL_ROOT}.tar.gz
-check_sha256sum ${OPENSSL_ROOT}.tar.gz ${OPENSSL_HASH}
-tar -xzf ${OPENSSL_ROOT}.tar.gz
-rm -rf ${OPENSSL_ROOT}.tar.gz
+	# Download
+	curl -fsSLO http://www.openssl.org/source/${OPENSSL_ROOT}.tar.gz
+	check_sha256sum ${OPENSSL_ROOT}.tar.gz ${OPENSSL_HASH}
+	tar -xzf ${OPENSSL_ROOT}.tar.gz
+	rm -rf ${OPENSSL_ROOT}.tar.gz
 
-# Configure
-pushd ${OPENSSL_ROOT}
-./config no-shared -fPIC --prefix=/usr/local/ssl --openssldir=/usr/local/ssl > /dev/null
+	# Configure
+	pushd ${OPENSSL_ROOT}
+	./config no-shared -fPIC --prefix=/usr/local/ssl --openssldir=/usr/local/ssl > /dev/null
 
-# Build
-make -j$(nproc) > /dev/null
+	# Build
+	make -j$(nproc) > /dev/null
+
+	# Install
+	make install_sw DESTDIR=/tmp/${OPENSSL_ROOT}-root > /dev/null
+
+	# Create cache archive
+	mkdir -p "$(dirname ${OPENSSL_ARCHIVE})"
+	tar -C /tmp/${OPENSSL_ROOT}-root -czf "${OPENSSL_ARCHIVE}" usr
 
-# Install
-make install_sw > /dev/null
+	popd
+	rm -rf ${OPENSSL_ROOT}
+fi
 
-popd
-rm -rf ${OPENSSL_ROOT}
+tar -C / -xf "${OPENSSL_ARCHIVE}"