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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

Public bug reported:

This is probably due to not having a metavar defined for the --before
option, but the help output is weird:

stack@stein:~/nova$ nova-manage db purge -h
/usr/local/lib/python2.7/dist-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.
  """)
usage: nova-manage db purge [-h] [--before ACTION_KWARG_BEFORE] [--all]
                            [--verbose] [--all-cells]

optional arguments:
  -h, --help            show this help message and exit
  --before ACTION_KWARG_BEFORE
                        If specified, purge rows from shadow tables that are
                        older than this. Fuzzy time specs are allowed
  --all                 Purge all rows in the shadow tables
  --verbose             Print information about purged records
  --all-cells           Run against all cell databases
stack@stein:~/nova$


Notably the "ACTION_KWARG_BEFORE" thing.

** Affects: nova
     Importance: Low
         Status: Triaged


** Tags: low-hanging-fruit nova-manage

** Description changed:

  This is probably due to not having a metavar defined for the --before
  option, but the help output is weird:
  
  stack@stein:~/nova$ nova-manage db purge -h
  /usr/local/lib/python2.7/dist-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.
-   """)
+   """)
  usage: nova-manage db purge [-h] [--before ACTION_KWARG_BEFORE] [--all]
-                             [--verbose] [--all-cells]
+                             [--verbose] [--all-cells]
  
  optional arguments:
-   -h, --help            show this help message and exit
-   --before ACTION_KWARG_BEFORE
-                         If specified, purge rows from shadow tables that are
-                         older than this. Fuzzy time specs are allowed
-   --all                 Purge all rows in the shadow tables
-   --verbose             Print information about purged records
-   --all-cells           Run against all cell databases
- stack@stein:~/nova$ 
+   -h, --help            show this help message and exit
+   --before ACTION_KWARG_BEFORE
+                         If specified, purge rows from shadow tables that are
+                         older than this. Fuzzy time specs are allowed
+   --all                 Purge all rows in the shadow tables
+   --verbose             Print information about purged records
+   --all-cells           Run against all cell databases
+ stack@stein:~/nova$
  
  
- Notable the "ACTION_KWARG_BEFORE" thing.
+ Notably the "ACTION_KWARG_BEFORE" thing.

-- 
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https://bugs.launchpad.net/bugs/1802167

Title:
  nova-manage db purge -h has weird help for --before option

Status in OpenStack Compute (nova):
  Triaged

Bug description:
  This is probably due to not having a metavar defined for the --before
  option, but the help output is weird:

  stack@stein:~/nova$ nova-manage db purge -h
  /usr/local/lib/python2.7/dist-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: <http://initd.org/psycopg/docs/install.html#binary-install-from-pypi>.
    """)
  usage: nova-manage db purge [-h] [--before ACTION_KWARG_BEFORE] [--all]
                              [--verbose] [--all-cells]

  optional arguments:
    -h, --help            show this help message and exit
    --before ACTION_KWARG_BEFORE
                          If specified, purge rows from shadow tables that are
                          older than this. Fuzzy time specs are allowed
    --all                 Purge all rows in the shadow tables
    --verbose             Print information about purged records
    --all-cells           Run against all cell databases
  stack@stein:~/nova$


  Notably the "ACTION_KWARG_BEFORE" thing.

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