avoid external PRs to github pages (#473)

We merge to gh-pages only during release. General PRs should be made to main.

.github/workflows/branch-policy.yml

@@ -0,0 +1,22 @@
+name: Branch Policy
+
+on:
+  pull_request:
+    branches:
+      - gh-pages
+
+jobs:
+  check_author:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Protected gh-pages
+        run: |
+          PR_AUTHOR="${{ github.actor }}"
+          ALLOWED_AUTHORS=("connor4312" "roblourens")
+
+          if [[ " ${ALLOWED_AUTHORS[@]} " =~ " ${PR_AUTHOR} " ]]; then
+            echo "'${PR_AUTHOR}' is allowed to make PRs to gh-pages"
+          else
+            echo "'${PR_AUTHOR}' is not allowed to make PRs to 'gh-pages', please target the 'main' branch instead"
+            exit 1
+          fi

_implementors/adapters.md

@@ -81,4 +81,4 @@ Many adapters publish releases tailored for specific editors, such as VS Code, a
 [VSCode rdbg Ruby Debugger](https://github.com/ruby/vscode-rdbg)|[@ko1](https://github.com/ko1)|[VS Code](https://marketplace.visualstudio.com/items?itemName=KoichiSasada.vscode-rdbg)
 {: .table .table-bordered .table-responsive}
 
-*If you are missing a debug adapter implementation please create a pull request in GitHub against this markdown [document](https://github.com/Microsoft/debug-adapter-protocol/blob/gh-pages/_implementors/adapters.md)*
+*If you are missing a debug adapter implementation please create a pull request in GitHub against this markdown [document](https://github.com/Microsoft/debug-adapter-protocol/blob/main/_implementors/adapters.md)*

_implementors/sdks.md

@@ -21,4 +21,4 @@ The following table lists the known SDKs or libraries that support the Debug Ada
 | A Rust implementation of the Debug Adapter Protocol | Rust | [Tamás Szelei](https://github.com/sztomi) | [sztomi/dap-rs](https://github.com/sztomi/dap-rs)
 {: .table .table-bordered .table-responsive}
 
-*If you are missing a SDK please create a pull request in GitHub against this markdown [document](https://github.com/Microsoft/debug-adapter-protocol/blob/gh-pages/_implementors/sdks.md)*
+*If you are missing a SDK please create a pull request in GitHub against this markdown [document](https://github.com/Microsoft/debug-adapter-protocol/blob/main/_implementors/sdks.md)*

_implementors/tools.md

@@ -19,11 +19,11 @@ The following table lists the known development tools (IDEs) that implement the
 | Theia                         | Theia        | Eclipse    | [theia](https://github.com/theia-ide/theia/)
 | Vim, Neovim                   | vimspector   | [Ben Jackson](https://github.com/puremourning) | [vimspector](https://github.com/puremourning/vimspector), [vim](https://github.com/vim/vim), [neovim](https://github.com/neovim/neovim)
 | Neovim                        | neovim       | [@mfussenegger](https://github.com/mfussenegger) | [nvim-dap](https://github.com/mfussenegger/nvim-dap), [neovim](https://github.com/neovim/neovim)
-| Cloud Studio                  | cloudstudio  | [CODING](https://studio.dev.tencent.com/) 
+| Cloud Studio                  | cloudstudio  | [CODING](https://studio.dev.tencent.com/)
 | JCIDE                         | JCIDE        | [JavaCardOS](https://www.javacardos.com/)   | [JCIDE](https://www.javacardos.com/tools)
 | OpenSumi                      | OpenSumi     | [OpenSumi](https://github.com/opensumi)   | [opensumi/core](https://github.com/opensumi/core)|
 {: .table .table-bordered .table-responsive}
 
 The "client ID" is the identifier that a development tool sends to the debug adapter as part of the [**initialize**](../../specification#Requests_Initialize) request.
 
-*If you are missing a development tool or if you want to register a client ID please create a pull request in GitHub against this markdown [document](https://github.com/Microsoft/debug-adapter-protocol/blob/gh-pages/_implementors/tools.md).*
+*If you are missing a development tool or if you want to register a client ID please create a pull request in GitHub against this markdown [document](https://github.com/Microsoft/debug-adapter-protocol/blob/main/_implementors/tools.md).*