Add learn CLI command

annif/cli.py

@@ -134,6 +134,19 @@ def run_train(project_id, paths):
     proj.train(documents)
 
 
+@cli.command('learn')
+@click_log.simple_verbosity_option(logger)
+@click.argument('project_id')
+@click.argument('paths', type=click.Path(), nargs=-1)
+def run_learn(project_id, paths):
+    """
+    Further train an existing project on a collection of documents.
+    """
+    proj = get_project(project_id)
+    documents = open_documents(paths)
+    proj.learn(documents)
+
+
 @cli.command('analyze')
 @click_log.simple_verbosity_option(logger)
 @click.argument('project_id')

tests/test_cli.py

@@ -126,6 +126,17 @@ def test_train_multiple(testdatadir):
     assert testdatadir.join('projects/tfidf-fi/tfidf-index').size() > 0
 
 
+def test_learn(testdatadir):
+    docfile = os.path.join(
+        os.path.dirname(__file__),
+        'corpora',
+        'archaeology',
+        'documents.tsv')
+    result = runner.invoke(annif.cli.cli, ['learn', 'tfidf-fi', docfile])
+    assert not result.exception
+    assert result.exit_code == 0
+
+
 def test_analyze():
     result = runner.invoke(
         annif.cli.cli,