build: Fix various issues for upstream Fedora compatibility (#642)

* cmake: use GNUInstallDirs to find install dirs on Linux

* install plugins to lib/imhex/plugins

* fix included files in imhex.spec

* fix the release CI + do not upload x86_64 folder for Fedora

* change rpm names

* added IMHEX_STRIP_RELEASE option to optionally strip releases files (was done all the time before)

* Customize our imhex.spec file (use online building for our Fedora package)

* added IMHEX_PLUGINS_IN_SHARE option for AppImage

* test

.github/workflows/build.yml

@@ -262,6 +262,19 @@ jobs:
           mv build/AppDir.deb imhex-${{env.IMHEX_VERSION}}.deb
           rm -rf build/AppDir/DEBIAN
 
+      - name: 🛠️ Reconfigure build for AppImage
+        run: |
+          # Reconfigure CMake to  include a flag needed for AppImage
+          # Other flags are kept from old configuration
+
+          cd build
+          cmake \
+          -DIMHEX_PLUGINS_IN_SHARE=ON \
+          ..
+
+          rm -rf AppDir
+          make -j 4 install DESTDIR=AppDir
+
       - name: 📦 Bundle AppImage
         run: |
           cd build
@@ -445,10 +458,11 @@ jobs:
       - name: 📦 Build RPM
         run: |
           rpmbuild -ba --define "_version ${{env.IMHEX_VERSION}}" --define "_src_path $GITHUB_WORKSPACE" --define "_build_type $BUILD_TYPE" $GITHUB_WORKSPACE/dist/rpm/imhex.spec
+          mv ~/rpmbuild/RPMS/x86_64/*.rpm imhex-${{env.IMHEX_VERSION}}-Fedora-${{matrix.release}}.rpm
           
       - name: ⬆️ Upload RPM
         uses: actions/upload-artifact@v3
         with:
           name: Fedora ${{ matrix.release }} RPM
           path: |
-            ~/rpmbuild/RPMS/*/*.rpm
+            imhex-${{env.IMHEX_VERSION}}-Fedora-${{matrix.release}}.rpm

.github/workflows/release.yml

@@ -63,9 +63,7 @@ jobs:
       - name: ⬆️ Upload everything to release
         uses: softprops/action-gh-release@v1
         with:
-          files:  |
-            '*'
-            '*/*.rpm'
+          files: '*'
 
       - name: ✒️ Prepare PKGBUILD
         run: |