Add RPM packaging support

.cicd/gobo-eiffel.spec

@@ -0,0 +1,120 @@
+# Map RPM arch names to the naming used in GitHub release assets.
+%ifarch x86_64
+%global gobo_arch  x86_64
+%endif
+%ifarch aarch64
+%global gobo_arch  arm64
+%endif
+
+# gobo_full_version is the string that gec --version returns, used verbatim
+# in the asset filename.  It is passed at build time via:
+#   rpmbuild --define "gobo_full_version YY.MM.DD+commit"
+# The Version tag uses only the YY.MM part (from the release tag).
+%{!?gobo_full_version: %global gobo_full_version %{version}}
+
+Name:           gobo-eiffel
+Version:        26.05
+Release:        1%{?dist}
+Summary:        Portable Eiffel libraries and tools
+
+License:        MIT
+URL:            https://github.com/gobo-eiffel/gobo
+
+# The binary archive is produced by the GitHub pipeline and already contains
+# all compiled tool binaries.  It unpacks to a single top-level directory
+# named "gobo/".  The archive is renamed to a stable filename by the CI job
+# before being handed to rpmbuild.
+Source0:        gobo-linux-%{gobo_arch}-%{gobo_full_version}.tar.xz
+
+# No source compilation needed; binaries are pre-compiled.
+%global debug_package %{nil}
+
+# Gobo is a self-contained tree: every binary locates itself via /proc/self/exe
+# and infers $GOBO = parent(parent(binary)) = /usr/lib/gobo.
+# The entire package therefore lives under a single prefix.
+# Symlinks in /usr/bin point to the real files in /usr/lib/gobo/bin/ so that
+# the kernel resolves the symlink before exec, meaning /proc/self/exe always
+# returns the real path and the self-location logic in each binary still works.
+%define gobodir  %{_libdir}/gobo
+
+%description
+Gobo Eiffel provides portable Eiffel libraries and tools that work across
+multiple Eiffel compilers. The package includes:
+
+Libraries (in %{gobodir}/library/):
+  argument, free_elks, kernel, lexical, math, parse, pattern,
+  regexp, string, structure, test, time, tools, utility, xml
+
+Tools (in %{gobodir}/bin/, also accessible via /usr/bin symlinks):
+  gec      - Gobo Eiffel Compiler
+  gecc     - Gobo Eiffel C Compiler driver
+  geant    - Gobo Eiffel Ant (build tool)
+  gedoc    - Gobo Eiffel Documentation generator
+  gecop    - Gobo Eiffel Code Pretty-printer
+  geimage  - Gobo Eiffel Image tool
+  gelex    - Gobo Eiffel Lex (lexer generator)
+  gelint   - Gobo Eiffel Lint (static analysis)
+  gelsp    - Gobo Eiffel Language Server Protocol
+  gepp     - Gobo Eiffel Preprocessor
+  getest   - Gobo Eiffel Test (unit test framework)
+  gexslt   - Gobo Eiffel XSLT Processor
+  geyacc   - Gobo Eiffel Yacc (parser generator)
+
+The C runtime headers and compiler configuration required by gec are
+included in %{gobodir}/tool/gec/backend/c/.
+
+%prep
+%setup -q -n gobo
+
+%build
+# Binaries are already compiled in the binary archive; nothing to build.
+
+%install
+# Install the entire archive tree under %{gobodir}. Keeping all files
+# together is what makes the zero-env-var, self-relocating design work.
+install -d %{buildroot}%{gobodir}
+cp -a . %{buildroot}%{gobodir}/
+
+# Default C compiler for gec on Linux.  The delivery archive sets this to
+# "zig" (used during CI build); reset it to gcc for standard Linux installs.
+echo gcc > %{buildroot}%{gobodir}/tool/gec/backend/c/config/default.cfg
+
+# Symlinks in /usr/bin so the tools are on PATH without setting any env var.
+# Because Linux resolves symlinks before exec, /proc/self/exe returns the
+# real path (%{gobodir}/bin/<tool>) and the self-location logic in each
+# binary correctly infers GOBO=%{gobodir}.
+install -d %{buildroot}%{_bindir}
+for tool in gec gecc geant gedoc gecop geimage gelex gelint gelsp gepp getest gexslt geyacc; do
+    if [ -f %{buildroot}%{gobodir}/bin/$tool ]; then
+        ln -s %{gobodir}/bin/$tool %{buildroot}%{_bindir}/$tool
+    fi
+done
+
+%files
+%license %{gobodir}/LICENSE.txt
+%doc %{gobodir}/Readme.md %{gobodir}/History.md %{gobodir}/Release_notes.md
+%{gobodir}/bin/
+%{gobodir}/library/
+%{gobodir}/tool/
+%{gobodir}/misc/
+%{gobodir}/build.eant
+%{_bindir}/gec
+%{_bindir}/gecc
+%{_bindir}/geant
+%{_bindir}/gedoc
+%{_bindir}/gecop
+%{_bindir}/geimage
+%{_bindir}/gelex
+%{_bindir}/gelint
+%{_bindir}/gelsp
+%{_bindir}/gepp
+%{_bindir}/getest
+%{_bindir}/gexslt
+%{_bindir}/geyacc
+
+%changelog
+* Tue May 26 2026 Gobo Eiffel packager - 26.05-1
+- Initial RPM package built from pre-compiled binary archive
+- All files installed under /usr/lib/gobo/ to preserve the self-relocation
+  mechanism (binaries infer $GOBO from their own location via /proc/self/exe)
+- /usr/bin symlinks provide PATH access without any environment variable

.github/workflows/github-cd-release.yml

@@ -315,3 +315,75 @@ jobs:
           files: gobo-*
           tag: ${{ github.ref_name }}
           rm: true
+
+#
+# Build and publish RPM packages.
+#
+
+  linux_x86_64_rpm:
+    runs-on: ubuntu-latest
+    needs: all_publish
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/download-artifact@v8
+        with:
+          name: gobo_delivery_linux_x86_64
+          path: .
+      - name: extract_gobo_version
+        id: gobo_version
+        run: |
+          $version = $env:GITHUB_REF_NAME.TrimStart('gobo-')
+          $archive = (Get-ChildItem "gobo-linux-x86_64-*.tar.xz").Name
+          $full_version = $archive -replace '^gobo-linux-x86_64-(.+)\.tar\.xz$', '$1'
+          "version=$version" >> $env:GITHUB_OUTPUT
+          "full_version=$full_version" >> $env:GITHUB_OUTPUT
+        shell: pwsh
+      - name: build_rpm
+        run: |
+          sudo apt-get install -y rpm
+          mkdir -p ~/rpmbuild/{SOURCES,SPECS,BUILD,RPMS,SRPMS}
+          cp gobo-linux-x86_64-${{ steps.gobo_version.outputs.full_version }}.tar.xz \
+             ~/rpmbuild/SOURCES/gobo-linux-x86_64-${{ steps.gobo_version.outputs.full_version }}.tar.xz
+          cp .cicd/gobo-eiffel.spec ~/rpmbuild/SPECS/
+          rpmbuild -bb \
+            --define "version ${{ steps.gobo_version.outputs.version }}" \
+            --define "gobo_full_version ${{ steps.gobo_version.outputs.full_version }}" \
+            ~/rpmbuild/SPECS/gobo-eiffel.spec
+      - uses: softprops/action-gh-release@v3
+        with:
+          tag_name: ${{ github.ref_name }}
+          files: ~/rpmbuild/RPMS/x86_64/gobo-eiffel-*.rpm
+
+  linux_arm64_rpm:
+    runs-on: ubuntu-24.04-arm
+    needs: all_publish
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/download-artifact@v8
+        with:
+          name: gobo_delivery_linux_arm64
+          path: .
+      - name: extract_gobo_version
+        id: gobo_version
+        run: |
+          $version = $env:GITHUB_REF_NAME.TrimStart('gobo-')
+          $archive = (Get-ChildItem "gobo-linux-arm64-*.tar.xz").Name
+          $full_version = $archive -replace '^gobo-linux-arm64-(.+)\.tar\.xz$', '$1'
+          "version=$version" >> $env:GITHUB_OUTPUT
+          "full_version=$full_version" >> $env:GITHUB_OUTPUT
+        shell: pwsh
+      - name: build_rpm
+        run: |
+          sudo apt-get install -y rpm
+          mkdir -p ~/rpmbuild/{SOURCES,SPECS,BUILD,RPMS,SRPMS}
+          cp gobo-linux-arm64-${{ steps.gobo_version.outputs.full_version }}.tar.xz \
+             ~/rpmbuild/SOURCES/gobo-linux-arm64-${{ steps.gobo_version.outputs.full_version }}.tar.xz
+          cp .cicd/gobo-eiffel.spec ~/rpmbuild/SPECS/
+          rpmbuild -bb \
+            --define "version ${{ steps.gobo_version.outputs.version }}" \
+            --define "gobo_full_version ${{ steps.gobo_version.outputs.full_version }}" \
+            ~/rpmbuild/SPECS/gobo-eiffel.spec
+      - uses: softprops/action-gh-release@v3
+        with:
+          tag_name: ${{ github.ref_name }}
+          files: ~/rpmbuild/RPMS/aarch64/gobo-eiffel-*.rpm