fix: feat: task dispatcher — poll ops repo and launch runners (#45)

docker/edge/dispatcher.sh

@@ -1,12 +1,132 @@
 #!/usr/bin/env bash
-# dispatcher.sh — Edge task dispatcher placeholder
+# dispatcher.sh — Edge task dispatcher
 #
-# TODO: Implement task polling and runner launching (#45)
-# Currently a no-op loop for future expansion.
+# Polls the ops repo for approved actions and launches task-runner containers.
+# Part of #24.
+#
+# Action JSON schema:
+# {
+#   "id": "publish-skill-20260328",
+#   "formula": "clawhub-publish",
+#   "secrets": ["CLAWHUB_TOKEN"],
+#   "tools": ["clawhub"],
+#   "context": "SKILL.md bumped to 0.3.0",
+#   "model": "sonnet"
+# }
 
 set -euo pipefail
 
-while true; do
-  # Placeholder: no-op loop, no logic yet
+# Resolve script root (parent of lib/)
+SCRIPT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+
+# Source shared environment
+source "${SCRIPT_ROOT}/../lib/env.sh"
+
+# Ops repo location (vault/actions directory)
+OPS_REPO_ROOT="${OPS_REPO_ROOT:-/home/debian/disinto-ops}"
+VAULT_ACTIONS_DIR="${OPS_REPO_ROOT}/vault/actions"
+
+# Log function
+log() {
+  printf '[%s] %s\n' "$(date -u '+%Y-%m-%d %H:%M:%S UTC')" "$*"
+}
+
+# Clone or pull the ops repo
+ensure_ops_repo() {
+  if [ ! -d "${OPS_REPO_ROOT}/.git" ]; then
+    log "Cloning ops repo from ${FORGE_OPS_REPO}..."
+    git clone "${FORGE_WEB}" "${OPS_REPO_ROOT}"
+  else
+    log "Pulling latest ops repo changes..."
+    (cd "${OPS_REPO_ROOT}" && git pull --rebase)
+  fi
+}
+
+# Check if an action has already been completed
+is_action_completed() {
+  local id="$1"
+  [ -f "${VAULT_ACTIONS_DIR}/${id}.result.json" ]
+}
+
+# Launch a runner for the given action ID
+launch_runner() {
+  local id="$1"
+  log "Launching runner for action: ${id}"
+
+  # Read action config
+  local action_file="${VAULT_ACTIONS_DIR}/${id}.json"
+  if [ ! -f "$action_file" ]; then
+    log "ERROR: Action file not found: ${action_file}"
+    return 1
+  fi
+
+  # Extract formula from action JSON
+  local formula
+  formula=$(jq -r '.formula // empty' "$action_file")
+  if [ -z "$formula" ]; then
+    log "ERROR: Action ${id} missing 'formula' field"
+    return 1
+  fi
+
+  # Extract secrets (as space-separated list for env injection)
+  local secrets
+  secrets=$(jq -r '.secrets[]? // empty' "$action_file" 2>/dev/null | tr '\n' ' ')
+
+  # Run the formula via docker compose with action ID as argument
+  # The runner container should be defined in docker-compose.yml
+  # Secrets are injected via -e flags
+  local compose_cmd="docker compose run --rm runner ${formula} ${id}"
+
+  if [ -n "$secrets" ]; then
+    # Inject secrets as environment variables
+    for secret in $secrets; do
+      compose_cmd+=" -e ${secret}=${!secret}"
+    done
+  fi
+
+  log "Running: ${compose_cmd}"
+  eval "${compose_cmd}"
+
+  log "Runner completed for action: ${id}"
+}
+
+# Main dispatcher loop
+main() {
+  log "Starting dispatcher..."
+  log "Polling ops repo: ${VAULT_ACTIONS_DIR}"
+
+  # Ensure ops repo is available
+  ensure_ops_repo
+
+  while true; do
+    # Check if actions directory exists
+    if [ ! -d "${VAULT_ACTIONS_DIR}" ]; then
+      log "Actions directory not found: ${VAULT_ACTIONS_DIR}"
       sleep 60
-done
+      continue
+    fi
+
+    # Process each action file
+    for action_file in "${VAULT_ACTIONS_DIR}"/*.json; do
+      # Handle case where no .json files exist
+      [ -e "$action_file" ] || continue
+
+      local id
+      id=$(basename "$action_file" .json)
+
+      # Skip if already completed
+      if is_action_completed "$id"; then
+        continue
+      fi
+
+      # Launch runner for this action
+      launch_runner "$id"
+    done
+
+    # Wait before next poll
+    sleep 60
+  done
+}
+
+# Run main
+main "$@"