Simple workflow for custom release candidate branches

.github/workflows/r-custom-release-candidate.yml

@@ -0,0 +1,52 @@
+on:
+  workflow_dispatch:
+
+name: Create a Special Branch for Unmerged Release Candidates
+
+jobs:
+  testing:
+    name: r-custom-release-candidate
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+    permissions:
+      contents: write
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: 'pr-temp-rc'
+          submodules: 'recursive'
+
+      - uses: r-lib/actions/setup-pandoc@v2
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::testthat, any::decor
+
+      - name: Create CRAN-formatted source package in stochtree_cran subfolder
+        run: |
+          Rscript cran-bootstrap.R
+
+      - name: Copy a release candidate-specific README.md to stochtree_cran
+        run: |
+          cp RC_README.md stochtree_cran/README.md
+
+      - name: Copy demo scripts
+        run: |
+          mkdir -p stochtree_cran/tools
+          cp tools/debug/cloglog_ordinal_bart_binary.R stochtree_cran/tools/cloglog_ordinal_bart_binary.R
+          cp tools/debug/cloglog_ordinal_bart_three_category.R stochtree_cran/tools/cloglog_ordinal_bart_three_category.R
+          cp tools/debug/cloglog_ordinal_bart_four_category.R stochtree_cran/tools/cloglog_ordinal_bart_four_category.R
+
+      - name: Deploy to CRAN dev branch
+        if: github.event_name != 'pull_request'
+        uses: JamesIves/[email protected]
+        with:
+          clean: false
+          branch: cloglog-bart-rc
+          folder: stochtree_cran