Create crewai tool create <tool> command (#1379)

This commit creates a new CLI command for scaffolding tools.

tests/cli/test_utils.py

@@ -0,0 +1,100 @@
+import pytest
+import shutil
+import tempfile
+import os
+from crewai.cli import utils
+
+
+@pytest.fixture
+def temp_tree():
+    root_dir = tempfile.mkdtemp()
+
+    create_file(os.path.join(root_dir, "file1.txt"), "Hello, world!")
+    create_file(os.path.join(root_dir, "file2.txt"), "Another file")
+    os.mkdir(os.path.join(root_dir, "empty_dir"))
+    nested_dir = os.path.join(root_dir, "nested_dir")
+    os.mkdir(nested_dir)
+    create_file(os.path.join(nested_dir, "nested_file.txt"), "Nested content")
+
+    yield root_dir
+
+    shutil.rmtree(root_dir)
+
+
+def create_file(path, content):
+    with open(path, "w") as f:
+        f.write(content)
+
+
+def test_tree_find_and_replace_file_content(temp_tree):
+    utils.tree_find_and_replace(temp_tree, "world", "universe")
+    with open(os.path.join(temp_tree, "file1.txt"), "r") as f:
+        assert f.read() == "Hello, universe!"
+
+
+def test_tree_find_and_replace_file_name(temp_tree):
+    old_path = os.path.join(temp_tree, "file2.txt")
+    new_path = os.path.join(temp_tree, "file2_renamed.txt")
+    os.rename(old_path, new_path)
+    utils.tree_find_and_replace(temp_tree, "renamed", "modified")
+    assert os.path.exists(os.path.join(temp_tree, "file2_modified.txt"))
+    assert not os.path.exists(new_path)
+
+
+def test_tree_find_and_replace_directory_name(temp_tree):
+    utils.tree_find_and_replace(temp_tree, "empty", "renamed")
+    assert os.path.exists(os.path.join(temp_tree, "renamed_dir"))
+    assert not os.path.exists(os.path.join(temp_tree, "empty_dir"))
+
+
+def test_tree_find_and_replace_nested_content(temp_tree):
+    utils.tree_find_and_replace(temp_tree, "Nested", "Updated")
+    with open(os.path.join(temp_tree, "nested_dir", "nested_file.txt"), "r") as f:
+        assert f.read() == "Updated content"
+
+
+def test_tree_find_and_replace_no_matches(temp_tree):
+    utils.tree_find_and_replace(temp_tree, "nonexistent", "replacement")
+    assert set(os.listdir(temp_tree)) == {
+        "file1.txt",
+        "file2.txt",
+        "empty_dir",
+        "nested_dir",
+    }
+
+
+def test_tree_copy_full_structure(temp_tree):
+    dest_dir = tempfile.mkdtemp()
+    try:
+        utils.tree_copy(temp_tree, dest_dir)
+        assert set(os.listdir(dest_dir)) == set(os.listdir(temp_tree))
+        assert os.path.isfile(os.path.join(dest_dir, "file1.txt"))
+        assert os.path.isfile(os.path.join(dest_dir, "file2.txt"))
+        assert os.path.isdir(os.path.join(dest_dir, "empty_dir"))
+        assert os.path.isdir(os.path.join(dest_dir, "nested_dir"))
+        assert os.path.isfile(os.path.join(dest_dir, "nested_dir", "nested_file.txt"))
+    finally:
+        shutil.rmtree(dest_dir)
+
+
+def test_tree_copy_preserve_content(temp_tree):
+    dest_dir = tempfile.mkdtemp()
+    try:
+        utils.tree_copy(temp_tree, dest_dir)
+        with open(os.path.join(dest_dir, "file1.txt"), "r") as f:
+            assert f.read() == "Hello, world!"
+        with open(os.path.join(dest_dir, "nested_dir", "nested_file.txt"), "r") as f:
+            assert f.read() == "Nested content"
+    finally:
+        shutil.rmtree(dest_dir)
+
+
+def test_tree_copy_to_existing_directory(temp_tree):
+    dest_dir = tempfile.mkdtemp()
+    try:
+        create_file(os.path.join(dest_dir, "existing_file.txt"), "I was here first")
+        utils.tree_copy(temp_tree, dest_dir)
+        assert os.path.isfile(os.path.join(dest_dir, "existing_file.txt"))
+        assert os.path.isfile(os.path.join(dest_dir, "file1.txt"))
+    finally:
+        shutil.rmtree(dest_dir)

tests/cli/tools/test_main.py

@@ -1,11 +1,59 @@
+from contextlib import contextmanager
+import tempfile
 import unittest
 import unittest.mock
+import os
 from crewai.cli.tools.main import ToolCommand
 from io import StringIO
 from unittest.mock import patch, MagicMock
 
 
 class TestToolCommand(unittest.TestCase):
+    @contextmanager
+    def in_temp_dir(self):
+        original_dir = os.getcwd()
+        with tempfile.TemporaryDirectory() as temp_dir:
+            os.chdir(temp_dir)
+            try:
+                yield temp_dir
+            finally:
+                os.chdir(original_dir)
+
+    @patch("crewai.cli.tools.main.subprocess.run")
+    def test_create_success(self, mock_subprocess):
+        with self.in_temp_dir():
+            tool_command = ToolCommand()
+
+            with patch.object(tool_command, "login") as mock_login, patch(
+                "sys.stdout", new=StringIO()
+            ) as fake_out:
+                tool_command.create("test-tool")
+                output = fake_out.getvalue()
+
+            self.assertTrue(os.path.isdir("test_tool"))
+
+            self.assertTrue(os.path.isfile(os.path.join("test_tool", "README.md")))
+            self.assertTrue(os.path.isfile(os.path.join("test_tool", "pyproject.toml")))
+            self.assertTrue(
+                os.path.isfile(
+                    os.path.join("test_tool", "src", "test_tool", "__init__.py")
+                )
+            )
+            self.assertTrue(
+                os.path.isfile(os.path.join("test_tool", "src", "test_tool", "tool.py"))
+            )
+
+            with open(
+                os.path.join("test_tool", "src", "test_tool", "tool.py"), "r"
+            ) as f:
+                content = f.read()
+                self.assertIn("class TestTool", content)
+
+            mock_login.assert_called_once()
+            mock_subprocess.assert_called_once_with(["git", "init"], check=True)
+
+            self.assertIn("Creating custom tool test_tool...", output)
+
     @patch("crewai.cli.tools.main.subprocess.run")
     @patch("crewai.cli.plus_api.PlusAPI.get_tool")
     def test_install_success(self, mock_get, mock_subprocess_run):