Added a CLI for users to download models

aviary/docs/user_guide/aviary_commands.ipynb

@@ -172,6 +172,49 @@
    "source": [
     "!aviary fortran_to_aviary -h"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "(aviary-hangar-command)=\n",
+    "### aviary hangar\n",
+    "\n",
+    "The `aviary hangar` command will copy files and folders from the Aviary hangar to an accessible directory.\n",
+    "This is useful for users that have pip installed Aviary, but want to experiment with the included examples.\n",
+    "\n",
+    "The only required input is the name of an input deck.\n",
+    "This can be specified as the name of the file, the path from [aviary/models](https://github.com/OpenMDAO/Aviary/tree/main/aviary/models), the name of a folder in aviary/models. Multiple files and folders can be copied at once.\n",
+    "Optionally, the output directory can be specified; if it is not, the files will be copied into the current working directory in a folder called aviary_models.\n",
+    "If specified, the output directory will be created as needed.\n",
+    "\n",
+    "Example usage:\n",
+    "```\n",
+    "`aviary hangar engines` Copy all files in the engines folder\n",
+    "`aviary hangar turbofan_22k.txt` Copy the 22k turbofan deck\n",
+    "`aviary hangar N3CC/N3CC_data.py` Copy the N3CC data\n",
+    "`aviary hangar small_single_aisle_GwGm.dat small_single_aisle_GwGm.csv` Copy the Fortran and Aviary input decks for the small single aisle\n",
+    "`aviary hangar turbofan_22k.txt ~/example_files` Copy the engine model into ~/example_files\n",
+    "```\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "```\n",
+    "aviary hangar -h\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "!aviary hangar -h"
+   ]
   }
  ],
  "metadata": {

aviary/interface/cmd_entry_points.py

@@ -6,34 +6,8 @@
 from aviary.interface.methods_for_level1 import _exec_level1, _setup_level1_parser
 from aviary.utils.Fortran_to_Aviary import _exec_F2A, _setup_F2A_parser
 from aviary.visualization.dashboard import _dashboard_setup_parser, _dashboard_cmd
-from aviary.interface.graphical_input import IntegratedPlottingApp
-
-
-def _setup_flight_profile_parser(parser):
-    """
-    Set up the command line options for the Flight Profile plotting tool.
-
-    Parameters
-    ----------
-    parser : argparse.ArgumentParser
-        The parser instance.
-    """
-    pass
-
-
-def _exec_flight_profile(options, user_args):
-    """
-    Run the Flight Profile plotting tool.
-
-    Parameters
-    ----------
-    options : argparse.Namespace
-        Command line options.
-    user_args : list of str
-        Args to be passed to the user script.
-    """
-    app = IntegratedPlottingApp()
-    app.mainloop()
+from aviary.interface.graphical_input import _exec_flight_profile, _setup_flight_profile_parser
+from aviary.interface.download_models import _exec_hangar, _setup_hangar_parser
 
 
 def _load_and_exec(script_name, user_args):
@@ -74,6 +48,8 @@ def _load_and_exec(script_name, user_args):
                      "Allows users to draw a mission profile for use in Aviary."),
     'dashboard': (_dashboard_setup_parser, _dashboard_cmd,
                   "Run the Dashboard tool"),
+    'hangar': (_setup_hangar_parser, _exec_hangar,
+               "Allows users that pip installed Aviary to download models from the Aviary hangar"),
 }
 
 

aviary/interface/download_models.py

@@ -0,0 +1,100 @@
+import os
+from pathlib import Path
+import argparse
+import pkg_resources
+import shutil
+
+
+def aviary_resource(resource_name: str) -> str:
+    return pkg_resources.resource_filename("aviary", resource_name)
+
+
+def get_model(file_name: str, verbose=False) -> Path:
+    '''
+    This function attempts to find the path to a file or folder in aviary/models
+    If the path cannot be found in any of the locations, a FileNotFoundError is raised.
+
+    Parameters
+    ----------
+    path : str or Path
+        The input path, either as a string or a Path object.
+
+    Returns
+    -------
+    aviary_path
+        The absolute path to the file.
+
+    Raises
+    ------
+    FileNotFoundError
+        If the path is not found.
+    '''
+
+    # Get the path to Aviary's models
+    path = Path('models', file_name)
+    aviary_path = Path(aviary_resource(str(path)))
+
+    # If the file name was provided without a path, check in the subfolders
+    if not aviary_path.exists():
+        sub_dirs = [x[0] for x in os.walk(aviary_resource('models'))]
+        for sub_dir in sub_dirs:
+            temp_path = Path(sub_dir, file_name)
+            if temp_path.exists():
+                # only return the first matching file
+                aviary_path = temp_path
+                continue
+
+    # If the path still doesn't exist, raise an error.
+    if not aviary_path.exists():
+        raise FileNotFoundError(
+            f"File or Folder not found in Aviary's hangar"
+        )
+    if verbose:
+        print('found', aviary_path, '\n')
+    return aviary_path
+
+
+def save_file(aviary_path: Path, outdir: Path, verbose=False) -> Path:
+    '''
+    Saves the file or folder specified into the output directory, creating directories as needed.
+    '''
+    outdir.mkdir(parents=True, exist_ok=True)
+    if aviary_path.is_dir():
+        if verbose:
+            print(aviary_path, 'is a directory, getting all files')
+        outdir = outdir.joinpath(aviary_path.stem)
+        outdir.mkdir(exist_ok=True)
+        for file in next(os.walk(aviary_path))[-1]:
+            if verbose:
+                print('copying', str(aviary_path / file), 'to', str(outdir / file))
+            shutil.copy2(aviary_path / file, outdir)
+    else:
+        if verbose:
+            print('copying', str(aviary_path), 'to', str(outdir / aviary_path.name))
+        shutil.copy2(aviary_path, outdir)
+    return outdir
+
+
+def _setup_hangar_parser(parser: argparse.ArgumentParser):
+    def_outdir = os.path.join(os.getcwd(), "aviary_models")
+    parser.add_argument(
+        'input_decks', metavar='indecks', type=str, nargs='+', help='Name of file or folder to download from Aviary/models'
+    )
+    parser.add_argument(
+        "-o", "--outdir", default=def_outdir, help="Directory to write outputs. Defaults to aviary_models in the current directory."
+    )
+    parser.add_argument(
+        "-v", "--verbose",
+        action="store_true",
+        help="Enable verbose outputs",
+    )
+
+
+def _exec_hangar(args, user_args):
+    # check if args.input_deck is a list, if so, use the first element
+    input_decks = []
+    for input_deck in args.input_decks:
+        input_decks.append(get_model(input_deck, args.verbose))
+
+    for input_deck in input_decks:
+        save_file(input_deck, Path(args.outdir), args.verbose)

aviary/interface/graphical_input.py

@@ -559,6 +559,33 @@ def update_plot(self, ax, data, label, color):
         ax.figure.canvas.draw()
 
 
+def _setup_flight_profile_parser(parser):
+    """
+    Set up the command line options for the Flight Profile plotting tool.
+
+    Parameters
+    ----------
+    parser : argparse.ArgumentParser
+        The parser instance.
+    """
+    pass
+
+
+def _exec_flight_profile(options, user_args):
+    """
+    Run the Flight Profile plotting tool.
+
+    Parameters
+    ----------
+    options : argparse.Namespace
+        Command line options.
+    user_args : list of str
+        Args to be passed to the user script.
+    """
+    app = IntegratedPlottingApp()
+    app.mainloop()
+
+
 if __name__ == "__main__":
     app = IntegratedPlottingApp()
     app.mainloop()

aviary/interface/test/test_download_models.py

@@ -0,0 +1,66 @@
+import subprocess
+import unittest
+from pathlib import Path
+import shutil
+
+import pkg_resources
+from openmdao.utils.testing_utils import use_tempdirs
+from aviary.interface.download_models import get_model, save_file
+
+
+@use_tempdirs
+class CommandEntryPointsTestCases(unittest.TestCase):
+
+    def run_and_test_hangar(self, filenames, out_dir=''):
+        # tests that the commands return an exit code of 0 and that the files are generated
+        if isinstance(filenames, str):
+            filenames = [filenames]
+        cmd = ['aviary', 'hangar'] + filenames
+
+        if out_dir:
+            cmd += ['-o', out_dir]
+            out_dir = Path(out_dir)
+        else:
+            out_dir = Path.cwd() / 'aviary_models'
+
+        try:
+            output = subprocess.check_output(cmd)
+            for filename in filenames:
+                path = out_dir / filename.split('/')[-1]
+                self.assertTrue(path.exists())
+        except subprocess.CalledProcessError as err:
+            self.fail(f"Command '{cmd}' failed.  Return code: {err.returncode}")
+
+    def test_single_file_without_path(self):
+        filename = 'turbofan_22k.deck'
+        self.run_and_test_hangar(filename)
+
+    def test_single_file_with_path(self):
+        filename = 'engines/turbofan_22k.deck'
+        self.run_and_test_hangar(filename)
+
+    def test_multiple_files(self):
+        filenames = ['small_single_aisle_GwGm.dat', 'small_single_aisle_GwGm.csv']
+        self.run_and_test_hangar(filenames)
+
+    def test_folder(self):
+        filename = 'engines'
+        self.run_and_test_hangar(filename)
+
+    def test_single_file_custom_outdir(self):
+        filename = 'small_single_aisle_GwGm.csv'
+        out_dir = '~/test_hangar'
+        self.run_and_test_hangar(filename, out_dir)
+        shutil.rmtree(out_dir)
+
+    def test_expected_path(self):
+        filename = f'test_aircraft/converter_configuration_test_data_GwGm.dat'
+        aviary_path = get_model('converter_configuration_test_data_GwGm.dat')
+
+        expected_path = pkg_resources.resource_filename('aviary',
+                                                        'models/test_aircraft/converter_configuration_test_data_GwGm.dat')
+        self.assertTrue(str(aviary_path) == expected_path)
+
+
+if __name__ == "__main__":
+    unittest.main()