CI: Add test run on Fedora and Alpine

.github/workflows/binary-gems.yml

@@ -8,7 +8,7 @@ on:
     - cron: "0 5 * * 3" # At 05:00 on Wednesday # https://crontab.guru/#0_5_*_*_3
 
 jobs:
-  job_build_x64:
+  rcd_build:
     name: Build
     runs-on: ubuntu-latest
     strategy:
@@ -18,7 +18,7 @@ jobs:
           - platform: "x64-mingw-ucrt"
           - platform: "x64-mingw32"
           - platform: "x86-mingw32"
-          - platform: "x86_64-linux-gnu"
+          - platform: "x86_64-linux"
     steps:
       - uses: actions/checkout@v4
       - name: Set up Ruby
@@ -45,7 +45,7 @@ jobs:
 
   job_test_binary:
     name: Test
-    needs: job_build_x64
+    needs: rcd_build
     strategy:
       fail-fast: false
       matrix:
@@ -63,7 +63,7 @@ jobs:
             PGVERSION: 16.6-1-windows-x64
           - os: ubuntu-latest
             ruby: "3.2"
-            platform: "x86_64-linux-gnu"
+            platform: "x86_64-linux"
 
     runs-on: ${{ matrix.os }}
     env:
@@ -132,3 +132,33 @@ jobs:
           ridk enable
           find "$(ruby -e"puts RbConfig::CONFIG[%q[libdir]]")" -name mkmf.log -print0 | xargs -0 cat
           find -name setup.log  -print0 | xargs -0 cat
+
+
+  job_binary_multiarch:
+    name: multiarch (${{matrix.platform}} on ${{matrix.from_image}} ${{matrix.image_platform}})
+    needs: rcd_build
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - from_image: fedora:39
+            image_platform: linux/x86_64
+            gem_platform: x86_64-linux
+            dockerfile: centos
+          - from_image: alpine
+            image_platform: linux/x86_64
+            gem_platform: x86_64-linux
+            dockerfile: alpine
+
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download gem-${{ matrix.gem_platform }}
+        uses: actions/download-artifact@v4
+        with:
+          name: binary-gem-${{ matrix.gem_platform }}
+      - name: Build image and Run tests
+        run: |
+          docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+          docker build --rm --platform ${{matrix.image_platform}} --build-arg from_image=${{matrix.from_image}} -t ruby-test -f spec/env/Dockerfile.${{matrix.dockerfile}} .
+          docker run --rm -t --network=host -v `pwd`:/build ruby-test

Gemfile

@@ -5,13 +5,16 @@ gemspec
 
 source "https://rubygems.org/"
 
-group :development, :test do
+group :development do
+  gem "rdoc", "~> 6.4"
+  gem "mini_portile2", "~> 2.1"
+end
+
+group :test do
   gem "bundler", ">= 1.16", "< 3.0"
   gem "rake-compiler", "~> 1.0"
   gem "rake-compiler-dock", "~> 1.5"
-  gem "rdoc", "~> 6.4"
   gem "rspec", "~> 3.5"
-  gem "mini_portile2", "~> 2.1"
   # "bigdecimal" is a gem on ruby-3.4+ and it's optional for ruby-pg.
   # Specs should succeed without it, but 4 examples are then excluded.
   # With bigdecimal commented out here, corresponding tests are omitted on ruby-3.4+ but are executed on ruby < 3.4.

Rakefile

@@ -47,7 +47,7 @@ CrossLibraries = [
 	['x64-mingw-ucrt', 'mingw64', 'x86_64-w64-mingw32'],
 	['x86-mingw32', 'mingw', 'i686-w64-mingw32'],
 	['x64-mingw32', 'mingw64', 'x86_64-w64-mingw32'],
-	['x86_64-linux-gnu', 'linux-x86_64', 'x86_64-redhat-linux-gnu'],
+	['x86_64-linux', 'linux-x86_64', 'x86_64-redhat-linux-gnu'],
 ].map do |platform, openssl_config, toolchain|
 	CrossLibrary.new platform, openssl_config, toolchain
 end

ext/extconf.rb

@@ -140,6 +140,8 @@ def install
 	$LDFLAGS << " '-Wl,-rpath=$$ORIGIN/../../ports/#{gem_platform}/lib'"
 	# Don't use pg_config for cross build, but --with-pg-* path options
 	dir_config('pg', "#{postgresql_recipe.path}/include", "#{postgresql_recipe.path}/lib")
+
+	$defs.push( "-DPG_IS_BINARY_GEM")
 else
 	# Native build
 

ext/pg.c

@@ -671,6 +671,12 @@ Init_pg_ext(void)
 	/* PostgreSQL compiled in default port */
 	rb_define_const(rb_mPGconstants, "DEF_PGPORT", INT2FIX(DEF_PGPORT));
 
+#ifdef PG_IS_BINARY_GEM
+	rb_define_const(rb_mPG, "IS_BINARY_GEM", Qtrue);
+#else
+	rb_define_const(rb_mPG, "IS_BINARY_GEM", Qfalse);
+#endif
+
 	/* Add the constants to the toplevel namespace */
 	rb_include_module( rb_mPG, rb_mPGconstants );
 

lib/pg.rb

@@ -6,7 +6,9 @@
 module PG
 
 	# Is this file part of a fat binary gem with bundled libpq?
-	bundled_libpq_path = Dir[File.expand_path("../ports/#{RUBY_PLATFORM.gsub(/^i386-/, "x86-")}*/lib", __dir__)].first
+	# This path must be enabled by add_dll_directory on Windows.
+	gplat = Gem::Platform.local
+	bundled_libpq_path = Dir[File.expand_path("../ports/#{gplat.cpu}-#{gplat.os}*/lib", __dir__)].first
 	if bundled_libpq_path
 		POSTGRESQL_LIB_PATH = bundled_libpq_path
 	else
@@ -21,7 +23,7 @@ module PG
 	end
 
 	add_dll_path = proc do |path, &block|
-		if RUBY_PLATFORM =~/(mswin|mingw)/i && path && File.exist?(path)
+		if RUBY_PLATFORM =~/(mswin|mingw)/i && path
 			BUNDLED_LIBPQ_WITH_UNIXSOCKET = false
 			begin
 				require 'ruby_installer/runtime'
@@ -32,14 +34,11 @@ module PG
 				block.call
 				ENV['PATH'] = old_path
 			end
-		elsif RUBY_PLATFORM =~/(linux)/i && bundled_libpq_path && File.exist?(bundled_libpq_path)
-			BUNDLED_LIBPQ_WITH_UNIXSOCKET = true
-			# libpq is found by a relative rpath in the cross compiled extension dll
-			block.call
 		else
-			BUNDLED_LIBPQ_WITH_UNIXSOCKET = false
-			# No need to set a load path manually - it's set as library rpath.
+			# libpq is found by a relative rpath in the cross compiled extension dll
+			# or by the system library loader
 			block.call
+			BUNDLED_LIBPQ_WITH_UNIXSOCKET = RUBY_PLATFORM=~/linux/i && PG::IS_BINARY_GEM
 		end
 	end
 

lib/pg/connection.rb

@@ -860,8 +860,8 @@ def new(*args)
 			if PG::BUNDLED_LIBPQ_WITH_UNIXSOCKET && iopts[:host].to_s.empty?
 				# Many distors patch the hardcoded default UnixSocket path in libpq to /var/run/postgresql instead of /tmp .
 				# We simply try them all.
-				iopts[:host] = "/var/run/postgresql"  # Ubuntu, Debian, Fedora, Opensuse
-					",/run/postgresql" # Alpine, Archlinux, Gentoo
+				iopts[:host] = "/var/run/postgresql" + # Ubuntu, Debian, Fedora, Opensuse
+					",/run/postgresql" + # Alpine, Archlinux, Gentoo
 					",/tmp" # Stock PostgreSQL
 			end
 

spec/env/Dockerfile.alpine

@@ -0,0 +1,27 @@
+ARG from_image
+FROM ${from_image}
+
+RUN uname -a
+RUN apk add ruby ruby-etc ruby-rake ruby-dev git gcc make musl-dev gcompat postgresql16 sudo
+
+RUN git config --global --add safe.directory /build
+RUN ruby --version
+RUN ruby -e 'puts File.read("/proc/#{Process.pid}/maps")'
+RUN gem env
+RUN gem inst bundler --conservative
+RUN gem list
+RUN sudo -u postgres initdb -D /var/lib/postgresql/ && \
+    mkdir -p /run/postgresql && \
+    chown postgres /run/postgresql
+
+WORKDIR /build
+
+CMD ruby -v && \
+  ruby -e "puts Gem::Platform.local.to_s" && \
+  sudo -u postgres pg_ctl -D /var/lib/postgresql/ start && \
+  chmod -R ugo+wrX . && \
+  gem install --local *.gem --verbose --no-document && \
+  bundle config set --local without 'development' && \
+  bundle install && \
+  sudo -u postgres ruby -rpg -e "p RUBY_DESCRIPTION, PG::VERSION, PG::POSTGRESQL_LIB_PATH, PG::IS_BINARY_GEM, PG::BUNDLED_LIBPQ_WITH_UNIXSOCKET; puts PG.connect.exec('SELECT version()').values; p PG.connect.host" && \
+  sudo -u postgres ruby -rpg -S rspec -fd spec/**/*_spec.rb

spec/env/Dockerfile.centos

@@ -0,0 +1,27 @@
+ARG from_image
+FROM ${from_image}
+
+RUN uname -a
+RUN yum install -y ruby-devel rake git gcc make redhat-rpm-config postgresql-server
+
+RUN git config --global --add safe.directory /build
+RUN ruby --version
+RUN ruby -e 'puts File.read("/proc/#{Process.pid}/maps")'
+RUN gem env
+RUN gem inst bundler --conservative
+RUN gem list
+RUN sudo -u postgres initdb -D /var/lib/pgsql/data && \
+    mkdir -p /run/postgresql && \
+    chown postgres /run/postgresql
+
+WORKDIR /build
+
+CMD ruby -v && \
+  ruby -e "puts Gem::Platform.local.to_s" && \
+  sudo -u postgres pg_ctl -D /var/lib/pgsql/data start && \
+  chmod -R ugo+wrX . && \
+  gem install --local *.gem --verbose --no-document && \
+  bundle config set --local without 'development' && \
+  bundle install && \
+  sudo -u postgres ruby -rpg -e "p RUBY_DESCRIPTION, PG::VERSION, PG::POSTGRESQL_LIB_PATH, PG::IS_BINARY_GEM, PG::BUNDLED_LIBPQ_WITH_UNIXSOCKET; puts PG.connect.exec('SELECT version()').values; p PG.connect.host" && \
+  sudo -u postgres ruby -rpg -S rspec -fd spec/**/*_spec.rb

spec/pg/connection_spec.rb

@@ -698,7 +698,7 @@
 		end
 
 		it "rejects to send lots of COPY data" do
-			unless RUBY_PLATFORM =~ /i386-mingw|x86_64-darwin|x86_64-linux/
+			unless RUBY_PLATFORM =~ /i386-mingw|x86_64-darwin|x86_64-linux$/
 				skip "this spec depends on out-of-memory condition in put_copy_data, which is not reliable on all platforms"
 			end