feat: add RPM package build

.github/workflows/rpm.yml

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+name: Build RPM Package
+on:
+  push:
+    tags:
+      - "v*.*.*"
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container:
+      image: fedora:41
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Install build tools and dependencies
+        run: |
+          dnf install -y git rpm-build sudo golang
+      - name: Setup environment
+        run: |
+          mkdir -p ${GITHUB_WORKSPACE}/rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
+      - name: Copy necessary files to the build environment
+        run: |
+          cp *.go go.mod version.txt ${GITHUB_WORKSPACE}/rpmbuild/SOURCES/
+          cp .pkgs/rpm/SPECS/*.spec ${GITHUB_WORKSPACE}/rpmbuild/SPECS/
+      - name: Build the source tarball
+        run: |
+          cd ${GITHUB_WORKSPACE}/rpmbuild/SOURCES
+          tar -czf dotp-$(cat version.txt).tar.gz --transform "s,^,dotp-$(cat version.txt)/," *.go go.mod version.txt
+      - name: Build RPM Package
+        run: |
+          cd ${GITHUB_WORKSPACE}/rpmbuild
+          rpmbuild -ba \
+            --define "_topdir ${GITHUB_WORKSPACE}/rpmbuild" \
+            --define "_sourcedir ${GITHUB_WORKSPACE}/rpmbuild/SOURCES" \
+            SPECS/*.spec
+      - name: Setup artifact path
+        run: |
+          rpm_path=$(find ${GITHUB_WORKSPACE}/rpmbuild/RPMS -type f -name "*.rpm" | head -n1)
+          echo "RPM_PATH=$rpm_path" >> $GITHUB_ENV
+          echo "RPM_NAME=$(basename $rpm_path)" >> $GITHUB_ENV
+      - name: Upload RPM to release
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ env.RPM_PATH }}
+          asset_name: ${{ env.RPM_NAME }}
+          tag: ${{ github.ref }}
+          overwrite: true
+      - name: Upload RPM Package
+        uses: actions/upload-artifact@v3
+        with:
+          name: rpm-packages
+          path: /home/builder/rpmbuild/RPMS/x86_64/*.rpm
+permissions:
+  contents: write

.pkgs/rpm.Dockerfile

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+FROM fedora:41 AS builder
+
+RUN dnf install -y git rpm-build sudo golang
+
+RUN useradd -m builder && \
+    echo "builder ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
+
+WORKDIR /home/builder
+
+RUN mkdir -p /home/builder/rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS} && \
+    chown -R builder:builder /home/builder
+
+USER builder
+
+COPY *.go go.mod version.txt /home/builder/rpmbuild/SOURCES/
+COPY .pkgs/rpm/SPECS/*.spec /home/builder/rpmbuild/SPECS/
+
+WORKDIR /home/builder/rpmbuild/SOURCES
+
+RUN tar -czf dotp-$(cat version.txt).tar.gz \
+    --transform "s,^,dotp-$(cat version.txt)/," \
+    *.go go.mod version.txt
+
+WORKDIR /home/builder/rpmbuild
+
+RUN rpmbuild -ba SPECS/*.spec
+
+FROM scratch
+WORKDIR /pkg
+COPY --from=builder /home/builder/rpmbuild/RPMS/x86_64/*.rpm .
+ENTRYPOINT ["dotp"]

.pkgs/rpm/SPECS/dotp.spec

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+Name:           dotp
+Version:        0.0.1.20240712.02
+Release:        1%{?dist}
+Summary:        Command-line tool for managing Time-based One-Time Passwords (TOTPs)
+
+License:        GPL-3.0-or-later
+URL:            https://github.com/petlack/dotp
+Source:         %{name}-%{version}.tar.gz
+
+BuildRequires:  go
+
+%global debug_package %{nil}  # Disable automatic debuginfo package generation
+
+%description
+%{summary}
+
+%prep
+%autosetup -n %{name}-%{version}
+
+%build
+export GOOS=linux
+go version
+go build -a -ldflags="-linkmode=external" -o build/%{name} .
+
+%install
+install -Dm755 build/%{name} %{buildroot}%{_bindir}/%{name}
+
+%check
+go test ./...
+
+%files
+%{_bindir}/%{name}
+
+%changelog
+* Fri Jul 12 2024 John Doe <email@example.com> - %{version}-%{release}
+- Initial RPM release