add in --version flag to cli. closes #1679.

src/crewai/cli/cli.py

@@ -26,6 +26,7 @@ from .update_crew import update_crew
 
 
 @click.group()
+@click.version_option(pkg_resources.get_distribution("crewai").version)
 def crewai():
     """Top-level command group for crewai."""
 
@@ -55,7 +56,10 @@ def create(type, name, provider, skip_provider=False):
 )
 def version(tools):
     """Show the installed version of crewai."""
-    crewai_version = pkg_resources.get_distribution("crewai").version
+    try:
+        crewai_version = pkg_resources.get_distribution("crewai").version
+    except Exception:
+        crewai_version = "unknown version"
     click.echo(f"crewai version: {crewai_version}")
 
     if tools:

tests/cli/cli_test.py

@@ -131,6 +131,13 @@ def test_reset_no_memory_flags(runner):
     )
 
 
+def test_version_flag(runner):
+    result = runner.invoke(version)
+
+    assert result.exit_code == 0
+    assert "crewai version:" in result.output
+
+
 def test_version_command(runner):
     result = runner.invoke(version)