Build RPM packages

.github/workflows/rpm.yml

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+name: RPM
+on:
+  pull_request:
+    paths:
+      - .github/workflows/rpm.yml
+      - Dockerfile.rpm
+      - amqproxy.spec
+      - shard.lock
+      - src/**
+  push:
+    branches:
+      - main
+    tags:
+      - v*
+    paths:
+      - .github/workflows/rpm.yml
+      - Dockerfile.rpm
+      - amqproxy.spec
+      - shard.lock
+      - src/**
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  build_rpm:
+    name: Build RPM
+    strategy:
+      matrix:
+        os: ['fedora-37']
+    runs-on: ubuntu-latest
+    concurrency: ${{ github.workflow }}-depot
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Generate version string
+        run: |
+          last_tag=$(git describe --tags --abbrev=0)
+          version=$(cut -d- -f1 <<< ${last_tag:1})
+          pre_release=$(cut -d- -f2 <<< $last_tag)
+          if [ -n "$pre_release" ]
+          then version=$version~${pre_release//./}
+          fi
+          git_describe=$(git describe --tags)
+          post_release=${git_describe//$last_tag/}
+          post_release=${post_release:1}
+          post_release=${post_release//-/.}
+          if [ -n "$post_release" ]
+          then version=$version^${post_release}
+          fi
+          echo "version=$version" >> $GITHUB_ENV
+
+      # The depot CLI still needs to be available in your workflow
+      - uses: depot/setup-action@v1
+      - uses: depot/build-push-action@v1
+        with:
+          file: Dockerfile.rpm
+          platforms: linux/amd64,linux/arm64
+          build-args: |
+            build_image=84codes/crystal:1.6.2-${{ matrix.os }}
+            version=${{ env.version }}
+          outputs: RPMS
+
+      - uses: actions/upload-artifact@v3
+        name: Upload artifact
+        with:
+          name: rpm-packages
+          path: RPMS
+
+      - name: Upload to Packagecloud
+        run: |
+          set -eux
+          curl -fsSO -u "${{ secrets.packagecloud_token }}:" https://packagecloud.io/api/v1/distributions.json
+          ID=$(echo "${{ matrix.os }}" | cut -d- -f1)
+          VERSION_ID=$(echo "${{ matrix.os }}" | cut -d- -f2)
+          DIST_ID=$(jq ".rpm[] | select(.index_name == \"${ID}\").versions[] | select(.index_name == \"${VERSION_ID}\").id" distributions.json)
+          for PKG_FILE in $(find RPMS -name "*.rpm" | sort -u -t/ -k3)
+          do curl -fsS -u "${{ secrets.packagecloud_token }}:" -XPOST \
+                  -F "package[distro_version_id]=${DIST_ID}" \
+                  -F "package[package_file]=@${PKG_FILE}" \
+                  https://packagecloud.io/api/v1/repos/${{ github.repository }}/packages.json
+          done
+        if: startsWith(github.ref, 'refs/tags/v')
+
+      - name: Upload to Packagecloud head repo
+        run: |
+          set -eux
+          curl -fsSO -u "${{ secrets.packagecloud_token }}:" https://packagecloud.io/api/v1/distributions.json
+          ID=$(echo "${{ matrix.os }}" | cut -d- -f1)
+          VERSION_ID=$(echo "${{ matrix.os }}" | cut -d- -f2)
+          DIST_ID=$(jq ".rpm[] | select(.index_name == \"${ID}\").versions[] | select(.index_name == \"${VERSION_ID}\").id" distributions.json)
+          for PKG_FILE in $(find RPMS -name "*.rpm" | sort -u -t/ -k3)
+          do curl -fsS -u "${{ secrets.packagecloud_token }}:" -XPOST \
+                  -F "package[distro_version_id]=${DIST_ID}" \
+                  -F "package[package_file]=@${PKG_FILE}" \
+                  https://packagecloud.io/api/v1/repos/${{ github.repository }}-head/packages.json
+          done
+        if: github.event_name != 'pull_request'

Dockerfile.rpm

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+ARG build_image=84codes/crystal:latest-fedora-37
+
+FROM $build_image AS builder
+RUN dnf install -y --nodocs --setopt=install_weak_deps=False --repo=fedora,updates \
+    rpmdevtools rpmlint systemd-rpm-macros npm make help2man
+RUN rpmdev-setuptree
+COPY amqproxy.spec /root/rpmbuild/SPECS/
+ARG version
+RUN sed -i -E "s/^(Version:).*/\1 $version/" /root/rpmbuild/SPECS/amqproxy.spec
+RUN rpmlint /root/rpmbuild/SPECS/amqproxy.spec
+WORKDIR /usr/src/amqproxy
+COPY Makefile README.md LICENSE CHANGELOG.md shard.yml shard.lock ./
+COPY extras/ extras/
+COPY config/ config/
+COPY src/ src/
+RUN sed -i -E "s/(VERSION =) .*/\1 \"$version\"/" src/amqproxy/version.cr
+RUN tar -czf /root/rpmbuild/SOURCES/amqproxy.tar.gz -C /usr/src amqproxy
+ARG MAKEFLAGS
+RUN rpmbuild -ba /root/rpmbuild/SPECS/amqproxy.spec
+RUN rpmlint /root/rpmbuild/RPMS/* || true
+
+FROM fedora:37 AS test
+COPY --from=builder /root/rpmbuild/RPMS /tmp/RPMS
+RUN find /tmp/RPMS -type f -exec dnf install -y {} \;
+RUN amqproxy --version
+
+# Copy the deb package to a scratch image, that then can be exported
+FROM scratch
+COPY --from=builder /root/rpmbuild/RPMS /root/rpmbuild/SRPMS .

Makefile

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+SOURCES := $(shell find src/amqproxy -name '*.cr' 2> /dev/null)
+CRYSTAL_FLAGS := --release
+override CRYSTAL_FLAGS += --debug --error-on-warnings --link-flags=-pie
+
+.PHONY: all
+all: bin/amqproxy
+
+bin/%: src/%.cr $(SOURCES) lib | bin
+	crystal build $< -o $(basename $@) $(CRYSTAL_FLAGS)
+
+lib: shard.yml shard.lock
+	shards install --production
+
+bin man1:
+	mkdir -p $@
+
+man1/amqproxy.1: bin/amqproxy | man1
+	help2man -Nn "connection pool for AMQP connections" $< -o $@
+
+.PHONY: deps
+deps: lib
+
+.PHONY: lint
+lint: lib
+	lib/ameba/bin/ameba src/
+
+.PHONY: test
+test: lib
+	crystal spec
+
+.PHONY: format
+format:
+	crystal tool format --check
+
+DESTDIR :=
+PREFIX := /usr
+BINDIR := $(PREFIX)/bin
+DOCDIR := $(PREFIX)/share/doc
+MANDIR := $(PREFIX)/share/man
+SYSCONFDIR := /etc
+UNITDIR := /lib/systemd/system
+
+.PHONY: install
+install: bin/amqproxy man1/amqproxy.1 config/example.ini extras/amqproxy.service README.md CHANGELOG.md
+	install -D -m 0755 -t $(DESTDIR)$(BINDIR) bin/amqproxy
+	install -D -m 0644 -t $(DESTDIR)$(MANDIR)/man1 man1/amqproxy.1
+	install -D -m 0644 -t $(DESTDIR)$(UNITDIR) extras/amqproxy.service
+	install -D -m 0644 -t $(DESTDIR)$(DOCDIR)/amqproxy README.md
+	install -D -m 0644 config/example.ini $(DESTDIR)$(SYSCONFDIR)/amqproxy.ini
+	install -D -m 0644 CHANGELOG.md $(DESTDIR)$(DOCDIR)/amqproxy/changelog
+
+.PHONY: uninstall
+uninstall:
+	$(RM) $(DESTDIR)$(BINDIR)/amqproxy
+	$(RM) $(DESTDIR)$(MANDIR)/man1/amqproxy.1
+	$(RM) $(DESTDIR)$(SYSCONFDIR)/amqproxy/amqproxy.ini
+	$(RM) $(DESTDIR)$(UNITDIR)/amqproxy.service
+	$(RM) $(DESTDIR)$(DOCDIR)/{README.md,changelog}
+
+.PHONY: clean
+clean:
+	rm -rf bin

amqproxy.spec

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+Name:    amqproxy
+Summary: Connection and channel pool for AMQP connections
+Version: 1.0.0
+Release: 1%{?dist}
+
+License: ASL 2.0
+BuildRequires: systemd-rpm-macros crystal help2man
+Requires(pre): shadow-utils
+URL: https://github.com/cloudamqp/amqproxy
+Source: amqproxy.tar.gz
+
+%description
+An AMQP proxy that reuses upstream connections and channels
+
+%prep
+%setup -qn amqproxy
+
+%check
+
+%build
+make
+
+%install
+make install DESTDIR=%{buildroot} UNITDIR=%{_unitdir}
+
+%post
+%systemd_post %{name}.service
+
+%preun
+%systemd_preun %{name}.service
+
+%postun
+%systemd_postun_with_restart %{name}.service
+
+%files
+%{_bindir}/%{name}
+%{_unitdir}/%{name}.service
+%{_mandir}/man1/*
+%config(noreplace) %{_sysconfdir}/%{name}.ini
+%doc README.md
+%doc %{_docdir}/%{name}/changelog
+%license LICENSE
+
+%changelog
+* Thu Nov 24 2022 CloudAMQP <[email protected]>
+- Initial version of the package