[WIP] Workflows

packs/examples/actions/list_example.sh

@@ -1,17 +1,58 @@
-#!/bin/bash
+#!/bin/sh
 # List Example Action
 # Demonstrates JSON Lines output format for streaming results
+#
+# This script uses pure POSIX shell without external dependencies like jq.
+# It reads parameters in DOTENV format from stdin until the delimiter.
 
-set -euo pipefail
+set -e
 
-# Read parameters from stdin (JSON format)
-read -r params_json
+# Initialize count with default
+count=5
 
-# Extract count parameter (default to 5 if not provided)
-count=$(echo "$params_json" | jq -r '.count // 5')
+# Read DOTENV-formatted parameters from stdin until delimiter
+while IFS= read -r line; do
+    case "$line" in
+        *"---ATTUNE_PARAMS_END---"*)
+            break
+            ;;
+        count=*)
+            # Extract value after count=
+            count="${line#count=}"
+            # Remove quotes if present (both single and double)
+            case "$count" in
+                \"*\")
+                    count="${count#\"}"
+                    count="${count%\"}"
+                    ;;
+                \'*\')
+                    count="${count#\'}"
+                    count="${count%\'}"
+                    ;;
+            esac
+            ;;
+    esac
+done
+
+# Validate count is a positive integer
+case "$count" in
+    ''|*[!0-9]*)
+        count=5
+        ;;
+esac
+
+if [ "$count" -lt 1 ]; then
+    count=1
+elif [ "$count" -gt 100 ]; then
+    count=100
+fi
 
 # Generate JSON Lines output (one JSON object per line)
-for i in $(seq 1 "$count"); do
+i=1
+while [ "$i" -le "$count" ]; do
     timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
-    echo "{\"id\": $i, \"value\": \"item_$i\", \"timestamp\": \"$timestamp\"}"
+    printf '{"id": %d, "value": "item_%d", "timestamp": "%s"}\n' "$i" "$i" "$timestamp"
+    i=$((i + 1))
 done
+
+exit 0