Update Portfile

- Add `compiler.cxx_standard`
- Don't overwrite config files
- Fix `maintainers`
- Correct cmake configure arguments
- Remove `destroot`
- Use `git` instead of `github.setup`
- Set revision to 0
- Add long description

.github/workflows/CI.yml

@@ -9,6 +9,17 @@ on:
   workflow_dispatch:
 
 jobs:
+  github_env:
+    name: GitHub Env Debug
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Dump github context
+        run: echo "$GITHUB_CONTEXT"
+        shell: bash
+        env:
+          GITHUB_CONTEXT: ${{ toJson(github) }}
+
   check_changelog:
     name: Check Changelog
     runs-on: ubuntu-latest
@@ -438,28 +449,25 @@ jobs:
       - name: Configure Portfile
         run: |
           # variables for Portfile
-          owner=$(echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]' )
-          repo=$(echo ${GITHUB_REPOSITORY#*/} | tr '[:upper:]' '[:lower:]' )
           branch=${GITHUB_HEAD_REF}
-          commit=${{ github.event.pull_request.head.sha }}
           
           # check the branch variable
           if [ -z "$branch" ]
           then
               echo "This is a PUSH event"
-              branch=branch=${{ github.ref_name }}
               commit=${{ github.sha }}
+              clone_url=${{ github.event.repository.clone_url }}
           else
               echo "This is a PR event"
+              commit=${{ github.event.pull_request.head.sha }}
+              clone_url=${{ github.event.pull_request.head.repo.clone_url }}
           fi
-          echo "Owner: ${owner}"
-          echo "Repo: ${repo}"
-          echo "Branch: ${branch}"
           echo "Commit: ${commit}"
+          echo "Clone URL: ${clone_url}"
           
           mkdir build
           cd build
-          cmake -DGITHUB_OWNER=${owner} -DGITHUB_REPO=${repo} -DGITHUB_BRANCH=${branch} -DSUNSHINE_CONFIGURE_PORTFILE=ON -DSUNSHINE_CONFIGURE_ONLY=ON ..
+          cmake -DGITHUB_COMMIT=${commit} -DGITHUB_CLONE_URL=${clone_url} -DSUNSHINE_CONFIGURE_PORTFILE=ON -DSUNSHINE_CONFIGURE_ONLY=ON ..
           
           cd ..
           
@@ -470,6 +478,9 @@ jobs:
           # copy Portfile to ports
           mkdir -p ./ports/multimedia/Sunshine
           cp -f ./build/Portfile ./ports/multimedia/Sunshine/Portfile
+          
+          # testing
+          cat ./artifacts/Portfile
 
       - name: Bootstrap MacPorts
         run: |