Issue251 cli init command

annif/cli.py

@@ -123,6 +123,28 @@ def run_show_project(project_id):
     click.echo(template.format('Access:', proj.access.name))
 
 
+@cli.command('init')
+@click.argument('project_id')
+@common_options
+def run_init_project(project_id):
+    """
+    Remove the data files of a project.
+    """
+
+    proj = get_project(project_id)
+    datadir_path = proj.datadir
+    data_files = os.listdir(datadir_path)
+    if data_files:
+        for data_file in data_files:
+            os.remove(os.path.join(datadir_path, data_file))
+        click.echo('Removed data files for project {}.'.format(project_id))
+    else:
+        click.echo(
+            'No data files to remove for project {}.'.format(project_id),
+            err=True)
+        sys.exit(1)
+
+
 @cli.command('loadvoc')
 @click.argument('project_id')
 @click.argument('subjectfile', type=click.Path(dir_okay=False))

tests/test_cli.py

@@ -84,6 +84,28 @@ def test_show_project_nonexistent():
     assert failed_result.exception
 
 
+def test_init_project(testdatadir):
+    dirpath = os.path.join(str(testdatadir), 'projects', 'dummy-fi')
+    fpath = os.path.join(str(dirpath), 'test_init_project_datafile')
+    os.makedirs(dirpath)
+    open(fpath, 'a').close()
+
+    assert runner.invoke(
+        annif.cli.cli,
+        ['init', 'dummy-fi']).exit_code == 0
+    assert not os.path.exists(fpath)
+
+
+def test_init_project_nonexistent(testdatadir):
+    runner.invoke(
+        annif.cli.cli,
+        ['init', 'dummy-fi']).exit_code != 0
+    # Nonexistent project:
+    runner.invoke(
+        annif.cli.cli,
+        ['init', TEMP_PROJECT]).exit_code != 0
+
+
 def test_loadvoc_tsv(testdatadir):
     with contextlib.suppress(FileNotFoundError):
         os.remove(str(testdatadir.join('projects/tfidf-fi/subjects')))