"#"

action.yml

@@ -0,0 +1,64 @@
+name: josh-sync
+description: Bidirectional monorepo ↔ subrepo sync via josh-proxy
+
+inputs:
+  config:
+    description: "Path to .josh-sync.yml"
+    default: ".josh-sync.yml"
+  direction:
+    description: "forward, reverse, or both"
+    default: "both"
+  target:
+    description: "Sync only this target (default: all)"
+    required: false
+  branch:
+    description: "Sync only this branch (default: all)"
+    required: false
+  debug:
+    description: "Enable debug output"
+    default: "false"
+
+runs:
+  using: composite
+  steps:
+    - name: Setup josh-sync
+      shell: bash
+      run: |
+        JOSH_DIR="$(mktemp -d)"
+        cp -r "${{ github.action_path }}/bin" "${{ github.action_path }}/lib" "${JOSH_DIR}/"
+        chmod +x "${JOSH_DIR}/bin/josh-sync"
+        echo "${JOSH_DIR}/bin" >> "$GITHUB_PATH"
+        echo "JOSH_SYNC_ROOT=${JOSH_DIR}" >> "$GITHUB_ENV"
+
+    - name: Check dependencies
+      shell: bash
+      run: |
+        for cmd in git curl jq yq; do
+          command -v "$cmd" &>/dev/null || { echo "::error::Missing required tool: $cmd"; exit 1; }
+        done
+
+    - name: Loop guard (forward)
+      id: guard
+      if: inputs.direction == 'forward' || inputs.direction == 'both'
+      shell: bash
+      run: |
+        TRAILER=$(yq '.bot.trailer' "${{ inputs.config }}" 2>/dev/null || echo "Josh-Sync-Origin")
+        if git log -1 --format=%B | grep -q "^${TRAILER}:"; then
+          echo "skip=true" >> "$GITHUB_OUTPUT"
+          echo "::notice::Skipping sync — HEAD commit has sync trailer (loop prevention)"
+        else
+          echo "skip=false" >> "$GITHUB_OUTPUT"
+        fi
+
+    - name: Sync
+      if: steps.guard.outputs.skip != 'true'
+      shell: bash
+      env:
+        JOSH_SYNC_DEBUG: ${{ inputs.debug == 'true' && '1' || '0' }}
+      run: |
+        ARGS="--config ${{ inputs.config }}"
+        [[ "${{ inputs.direction }}" == "forward" ]] && ARGS+=" --forward"
+        [[ "${{ inputs.direction }}" == "reverse" ]] && ARGS+=" --reverse"
+        [[ -n "${{ inputs.target }}" ]] && ARGS+=" --target ${{ inputs.target }}"
+        [[ -n "${{ inputs.branch }}" ]] && ARGS+=" --branch ${{ inputs.branch }}"
+        josh-sync sync $ARGS