Improve user experience when using this tool as a CLI

[fridex]

Is your feature request related to a problem? Please describe.

When I tried thoth-glyph, it produced the following output for me:

$ thoth-glyph classify-repo-by-tag  -p /home/fpokorny/git/thoth-station/adviser --start_tag v0.10.0             
2020-08-17 11:23:06,330 379272 WARNING  thoth.common:346: Logging to a Sentry instance is turned off
2020-08-17 11:23:06,330 379272 INFO     thoth.common:368: Logging to rsyslog endpoint is turned off
2020-08-17 11:23:06,331 379272 INFO     glyph:68: Version: 0.1.0
2020-08-17 11:23:06,331 379272 INFO     glyph:121: Classifying commits between given tags
2020-08-17 11:23:06,346 379272 INFO     thoth.glyph.models:44: Model Path : /home/fpokorny/.local/share/virtualenvs/a-EouiYCWm/lib/python3.7/site-packages/thoth/glyph/data/model_commits_v2_quant.bin
Warning : `load_model` does not return WordVectorModel or SupervisedModel any more, but a `FastText` object which is very similar.
2020-08-17 11:23:06,378 379272 INFO     thoth.glyph.models:52: 144 commits classified
                                               message labels_predicted
0    :pushpin: automatic update of dependency matpl...         features
1    :pushpin: automatic update of dependency matpl...         features
2    :pushpin: automatic update of dependency thoth...         features
3    :pushpin: automatic update of dependency thoth...         features
4    adjust message when resolver does not find any...       corrective
..                                                 ...              ...
139  merge branch 'master' into disable-setup-proce...         features
140  merge branch 'master' into disable-setup-proce...         features
141          disable setup.py processing in s2i builds         features
142          merge branch 'master' into platform-check         features
143                add a check for available platforms         features

[144 rows x 2 columns]

Sadly, I see just first 5 commits and last 5 commits classified. It would be nice to produce the whole classification to standard output and let the user (if required) filter messages.

Other suggestions:

• the output could have the commit sha of the commit being classified

• the output could be in an easily processable form by tools (e.g. coreutils) by default

• merge commits could be removed from the output

• formatter could be selected as a CLI option to have a tool that can be easily used on the command line, e.g.:

  $ pipenv run thoth-glyph classify-repo-by-tag  -p /home/fpokorny/git/thoth-station/adviser --start_tag v0.10.0 --formatter Markdown > CHANGELOG.md
  

• use dashes instead of underscores in the command-line options

• improve help messages (e.g. classify sub-command says the classification is done for the current git repo, but it is done for the commit message passed as argument)

[sesheta]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
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/lifecycle stale

[fridex]

/remove-lifecycle stale

[sesheta]

Stale issues rot after 30d of inactivity.
Mark the issue as fresh with /remove-lifecycle rotten.
Rotten issues close after an additional 30d of inactivity.

If this issue is safe to close now please do so with /close.

/lifecycle rotten

[sesheta]

Stale issues rot after 30d of inactivity.
Mark the issue as fresh with /remove-lifecycle rotten.
Rotten issues close after an additional 30d of inactivity.

If this issue is safe to close now please do so with /close.

/lifecycle rotten

[goern]

/priority backlog
/remove-lifecycle rotten

[codificat]

/sig user-experience

[sesheta]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[goern]

/remove-lifecycle stale
/lifecycle frozen