Bring cli back (#300)

* Add nomenclature cli to pyproject.toml

* Add explicit check for presence of CLI

* Try to force windows to use bash for cli test

* Add separate cli test for windows

* Fix conditional skip

* Mark cli check as expected fail on Windows

pyproject.toml

@@ -32,6 +32,8 @@ sphinx = "^7.2.6"
 sphinx-click = "^5.1.0"
 numpydoc = "^1.6.0"
 
+[tool.poetry.scripts]
+nomenclature = 'nomenclature.cli:cli'
 
 [tool.poetry-dynamic-versioning]
 bump = true

tests/test_cli.py

@@ -1,3 +1,6 @@
+import subprocess
+import sys
+
 from click.testing import CliRunner
 from nomenclature import cli
 from nomenclature.testing import assert_valid_yaml, assert_valid_structure
@@ -9,6 +12,29 @@
 runner = CliRunner()
 
 
+@pytest.mark.xfail(
+    sys.platform.startswith("win"),
+    reason="Command to invoke the cli does not work on Windows",
+)
+def test_cli_installed():
+    command = "poetry run nomenclature"
+    result = subprocess.run(
+        command,
+        capture_output=True,
+        text=True,
+        shell=True,
+        check=True,
+    )
+    assert all(
+        command in result.stdout
+        for command in (
+            "check-region-aggregation",
+            "validate-project",
+            "validate-yaml",
+        )
+    )
+
+
 def test_cli_valid_yaml_path():
     """Check that CLI throws an error when the `path` is incorrect"""
     result_valid = runner.invoke(