Indicating which is the current version in history

[sqlalchemy-bot]

Migrated issue, originally created by Kazutaka Mise (@misebox)

Overview

Now, the history command does not tell us which the current version is. So, we have to execute the current command and look for the same version hash from output of history command.
I think it's useful if output of history command indicates which current version is.

Proposal

• Get current version from alembic_version table.
• Display (current) at right side of current version's hash.
• This feature needs DB access. How about to implement as an option.
  (like alembic history --current)

[sqlalchemy-bot]

Michael Bayer (@zzzeek) wrote:

history does DB access when part of the range you specify is in fact the word "current" to show how the history relates to the current tree.

note that "current" is a list of values, not a single value, as a tree can have any number of heads.

Feel free to provide a PR including a test in tests/test_command.py -> HistoryTest , call the command option --indicate-current / -i.

[sqlalchemy-bot]

Changes by Michael Bayer (@zzzeek):

• removed labels: easy
• added labels: low priority

[sqlalchemy-bot]

Changes by Michael Bayer (@zzzeek):

• removed labels: feature
• added labels: feature

[sqlalchemy-bot]

Kazutaka Mise (@misebox) wrote:

Ok, I see.
Thank you for some advises.

[sqlalchemy-bot]

Michael Bayer (@zzzeek) wrote:

https://gerrit.sqlalchemy.org/#/c/zzzeek/alembic/+/697/

[sqlalchemy-bot]

Michael Bayer (@zzzeek) wrote:

Add indicate-current option into history command

Added new flag --indicate-current to the alembic history command.
When listing versions, it will include the token "(current)" to indicate
the given version is a current head in the target database. Pull request
courtesy Kazutaka Mise.

Fixes: #481

Change-Id: I7daa02b455aaba76c50d0e1febbdc6908693d4c9
Pull-request: https://bitbucket.org/zzzeek/alembic/pull-requests/77

→ 22294ff

[sqlalchemy-bot]

Changes by Michael Bayer (@zzzeek):

• changed status to closed