Update .github/workflows/sync-binaries-task.yml

Co-authored-by: Giuseppe Lumia <[email protected]>

Author: Paolo Calao

.github/workflows/sync-binaries-task.yml

@@ -48,10 +48,14 @@ jobs:
               base64 -di | \
               gpg --batch --import --passphrase "${{ secrets.PASSPHRASE }}"
 
-        # disable gpg pass prompt
-        # https://stackoverflow.com/questions/49072403/suppress-the-passphrase-prompt-in-gpg-command
-      - name: sign the json
-        run: gpg --pinentry-mode=loopback --passphrase "${{ secrets.PASSPHRASE }}" --output firmware/binaries/index.json.sig --detach-sign firmware/binaries/index.json
+      - name: Sign the index
+        run: |
+          export GPG_TTY=$(tty)  # fix `gpg: signing failed: Inappropriate ioctl for device`
+          gpg \
+            --pinentry-mode=loopback \
+            --passphrase "${{ secrets.PASSPHRASE }}" \
+            --detach-sign firmware/binaries/index.json \
+            > firmware/binaries/index.json.sig
 
       - name: create the gzip
         run: gzip --keep firmware/binaries/index.json