fixup! TO-DROP: debug with tmate

GitHub API rate limiting hit me. So why not do everything by hand
instead?

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

.github/workflows/build-and-deploy.yml

@@ -249,11 +249,35 @@ jobs:
             exit 1
           fi
 
-      - name: debug with tmate
+      - name: Start tmate in C:\msys64 upon failure
         if: failure()
-        uses: mxschmitt/action-tmate@v3
-        with:
-          limit-access-to-actor: true
+        shell: pwsh
+        run: |
+          C:\msys64\usr\bin\bash.exe -lc @"
+            set -x &&
+            # restrict SSH access to the \`"actor\`", i.e. the GitHub user who triggered this workflow
+            # this requires calling \`ssh -i <private-key> [...]\` later on
+            mkdir -p ~/.ssh &&
+            echo \`"ssh-rsa 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\`" >~/.ssh/authorized_keys &&
+
+            # install tmate
+            pacman -Sy --noconfirm tmate openssh &&
+
+            # Generate an SSH key (needed for tmate)
+            echo -e \`"y\\n\`" | ssh-keygen -q -t rsa -N \`"\`" -f ~/.ssh/id_rsa &&
+
+            # Start tmate session
+            export CHERE_INVOKING=1 &&
+            tmate -S /tmp/tmate.sock -a ~/.ssh/authorized_keys new-session -d &&
+            tmate -S /tmp/tmate.sock wait tmate-ready &&
+
+            # Print SSH invocation every 5 seconds, until tmate session has terminated
+            while test -e /tmp/tmate.sock
+            do
+              tmate -S /tmp/tmate.sock display -p \`"#{tmate_ssh}\`"
+              sleep 5
+            done
+          "@
 
       - name: update check-run
         if: env.CREATE_CHECK_RUN != 'false'