Create a 'check' command #281

The 'check' command will only print the following severities errors:
'CRITICAL', 'ERROR', 'WARNING'.
It is using the same approach as user run the 'inventroy'. Instead of
creating the generated CSV file and an error.log, this command will not
create any files but just print the error on the screen.

Signed-off-by: Chin Yeung Li <[email protected]>

Author: chinyeungli

src/attributecode/cmd.py

@@ -44,7 +44,7 @@
 
 
 __copyright__ = """
-    Copyright (c) 2013-2016 nexB Inc. All rights reserved.
+    Copyright (c) 2013-2017 nexB Inc. All rights reserved.
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
@@ -63,6 +63,7 @@
 %(__copyright__)s
 ''' % locals()
 
+important_errors = [u'CRITICAL', u'ERROR', u'WARNING']
 
 class AboutCommand(click.Command):
     def main(self, args=None, prog_name=None, complete_var=None,
@@ -210,6 +211,26 @@ def attrib(location, output, template, mapping, inventory, quiet):
     click.echo('Finished.')
 
 
+@cli.command(cls=AboutCommand, short_help='LOCATION: directory')
+@click.argument('location', nargs=1, required=True, type=click.Path(exists=True, readable=True, resolve_path=True))
+def check(location):
+    """
+Validating ABOUT files at LOCATION.
+
+LOCATION: Path to an ABOUT file or a directory containing ABOUT files.
+    """
+    click.echo('Running attributecode version ' + __version__)
+    click.echo('Checking ABOUT files...')
+
+    errors, abouts = attributecode.model.collect_inventory(location)
+
+    msg_format = '%(sever)s: %(message)s'
+    for severity, message in errors:
+        sever = severities[severity]
+        if sever in important_errors:
+            print(msg_format % locals())
+
+
 def log_errors(errors, quiet, base_dir=False):
     """
     Iterate of sequence of Error objects and print and log errors with a severity