Create app.py

app.py

@@ -0,0 +1,73 @@
+import streamlit as st
+import yaml
+import time
+
+# Title
+st.title("Azure DevOps Pipeline YAML Simulator")
+
+# Input for YAML pipeline configuration
+yaml_input = st.text_area("Paste your Azure DevOps pipeline YAML here:", height=300)
+
+# Function to validate YAML syntax
+def validate_yaml(yaml_text):
+    try:
+        parsed_yaml = yaml.safe_load(yaml_text)
+        return True, parsed_yaml
+    except yaml.YAMLError as e:
+        return False, str(e)
+
+# Button to validate YAML
+if st.button("Validate YAML"):
+    if yaml_input.strip():
+        is_valid, result = validate_yaml(yaml_input)
+        if is_valid:
+            st.success("YAML syntax is valid!")
+        else:
+            st.error(f"Invalid YAML syntax:\n{result}")
+    else:
+        st.warning("Please paste your YAML configuration.")
+
+# Simulate pipeline execution
+def execute_pipeline(parsed_yaml):
+    stages = parsed_yaml.get("stages", [])
+    if not stages:
+        st.warning("No stages found in the pipeline.")
+        return
+
+    for stage in stages:
+        stage_name = stage.get("stage", "Unnamed Stage")
+        st.write(f"Starting stage: {stage_name}...")
+        time.sleep(2)  # Simulate execution time
+
+        jobs = stage.get("jobs", [])
+        for job in jobs:
+            job_name = job.get("job", "Unnamed Job")
+            st.write(f"Executing job: {job_name}...")
+            time.sleep(2)  # Simulate execution time
+
+            steps = job.get("steps", [])
+            for step in steps:
+                step_display = step.get("displayName", "Unnamed Step")
+                st.write(f"Running step: {step_display}...")
+                time.sleep(2)  # Simulate execution time
+
+        st.success(f"Stage {stage_name} completed successfully.")
+
+# Button to run the pipeline
+if st.button("Run Pipeline"):
+    if yaml_input.strip():
+        is_valid, result = validate_yaml(yaml_input)
+        if is_valid:
+            st.info("Executing pipeline...")
+            execute_pipeline(result)
+        else:
+            st.error("Invalid YAML. Cannot execute pipeline.")
+    else:
+        st.warning("Please paste your YAML configuration.")
+
+# Instructions for users
+st.sidebar.title("Instructions")
+st.sidebar.write("1. Paste your Azure DevOps YAML pipeline configuration into the text area.")
+st.sidebar.write("2. Click 'Validate YAML' to check for syntax errors.")
+st.sidebar.write("3. Click 'Run Pipeline' to simulate the pipeline execution.")
+st.sidebar.write("4. View the progress of each stage, job, and step in real-time.")