Added version command

stactools_cli/stactools/cli/__init__.py

@@ -8,14 +8,16 @@
 def register_plugin(registry):
     # Register subcommands
 
-    from stactools.cli.commands import (copy, info, layout, merge, migrate)
+    from stactools.cli.commands import (copy, info, layout, merge, migrate,
+                                        version)
 
     registry.register_subcommand(copy.create_copy_command)
     registry.register_subcommand(copy.create_move_assets_command)
     registry.register_subcommand(info.create_info_command)
     registry.register_subcommand(info.create_describe_command)
     registry.register_subcommand(layout.create_layout_command)
     registry.register_subcommand(merge.create_merge_command)
+    registry.register_subcommand(version.create_version_command)
 
     # TODO
     # registry.register_subcommand(migrate.create_migrate_command)

stactools_cli/stactools/cli/commands/version.py

@@ -0,0 +1,14 @@
+from click import echo
+from pystac.version import get_stac_version
+from stactools.core.version import __version__
+
+
+def create_version_command(cli):
+    @cli.command('version', short_help='Display version info.')
+    def version_command():
+        """Display version info
+        """
+        echo(f"stactools version {__version__}")
+        echo(f"PySTAC version {get_stac_version()}")
+
+    return version_command

tests/cli/commands/test_version.py

@@ -0,0 +1,17 @@
+from pystac.version import get_stac_version
+from stactools.core.version import __version__
+from stactools.cli.commands.version import create_version_command
+
+from tests.utils import CliTestCase
+
+
+class VersionTest(CliTestCase):
+    def create_subcommand_functions(self):
+        return [create_version_command]
+
+    def test_hello_world(self):
+        result = self.run_command(['version'])
+        self.assertEqual(0, result.exit_code)
+        expected = (f"stactools version {__version__}\n"
+                    f"PySTAC version {get_stac_version()}\n")
+        self.assertEqual(expected, result.output)