From 20e4f5d2098f2b76aaa1ec41e61e8f4e52da99d1 Mon Sep 17 00:00:00 2001
From: Guilherme Danno <GuilhermeHideki@users.noreply.github.com>
Date: Thu, 14 Jan 2016 18:08:22 -0200
Subject: [PATCH 1/2] Info plugin: add option to print only keys

---
 beetsplug/info.py | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/beetsplug/info.py b/beetsplug/info.py
index 61f0c7971..e67527247 100644
--- a/beetsplug/info.py
+++ b/beetsplug/info.py
@@ -119,6 +119,24 @@ def print_data(data, item=None, fmt=None):
         ui.print_(lineformat.format(field, value))
 
 
+def print_data_keys(data, item=None):
+
+    path = displayable_path(item.path) if item else None
+    formatted = []
+    for key, value in data.iteritems():
+        formatted.append(key)
+
+    if len(formatted) == 0:
+        return
+
+    line_format = u'{0}{{0}}'.format(u' ' * 4)
+    if path:
+        ui.print_(displayable_path(path))
+
+    for field in sorted(formatted):
+        ui.print_(line_format.format(field))
+
+
 class InfoPlugin(BeetsPlugin):
 
     def commands(self):
@@ -131,6 +149,8 @@ class InfoPlugin(BeetsPlugin):
         cmd.parser.add_option('-i', '--include-keys', default=[],
                               action='append', dest='included_keys',
                               help='comma separated list of keys to show')
+        cmd.parser.add_option('-k', '--keys-only', action='store_true',
+                              help='show only the keys')
         cmd.parser.add_format_option(target='item')
         return [cmd]
 
@@ -173,7 +193,10 @@ class InfoPlugin(BeetsPlugin):
             else:
                 if not first:
                     ui.print_()
-                print_data(data, item, opts.format)
+                if opts.keys_only:
+                    print_data_keys(data, item)
+                else:
+                    print_data(data, item, opts.format)
                 first = False
 
         if opts.summarize:

From f75b4b4e3b6b164234021381947b3b347a4152e1 Mon Sep 17 00:00:00 2001
From: Guilherme Danno <GuilhermeHideki@users.noreply.github.com>
Date: Fri, 15 Jan 2016 02:40:33 -0200
Subject: [PATCH 2/2] Update info docs

---
 docs/plugins/info.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/plugins/info.rst b/docs/plugins/info.rst
index b36e69051..238a957ff 100644
--- a/docs/plugins/info.rst
+++ b/docs/plugins/info.rst
@@ -39,7 +39,7 @@ Additional command-line options include:
 * ``--format`` or ``-f``: Specify a specific format with which to print every
   item. This uses the same template syntax as beets’ :doc:`path formats
   </reference/pathformat>`.
-
+* ``--keys-only`` or ``-k``: Show the name of the tags without the values.
 
 .. _id3v2: http://id3v2.sourceforge.net
 .. _mp3info: http://www.ibiblio.org/mp3info/