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Add evm:db:dump:local and evm:db:dump:remote tasks #17483

Merged
merged 6 commits into from
May 31, 2018
Merged

Add evm:db:dump:local and evm:db:dump:remote tasks #17483

merged 6 commits into from
May 31, 2018

Commits on May 31, 2018

  1. Adds helper method for building calculated db_opts 

    A helper method that will be used in future commits.  Also adds a few
specs to validate log output.
    @NickLaMuro
    NickLaMuro committed May 31, 2018
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  2. Adds EvmDatabaseOps.with_mount_session (private) 

    This methods is used to handle the session mount logic for the
restore/backup methods in this class in a single spot.

Note:  merged_db_opts is used here in the log messages because db_opts
is not mutated as part of with_mount_session, but we want to make sure
we are logging the correct info.  Putting the log statement inside the
with_mount_session seemed like a bad idea, so rebuilding the calculated
db_opts hash seemed like the least ugly workaround.
    @NickLaMuro
    NickLaMuro committed May 31, 2018
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  3. Add EvmDatabaseOps.validate_free_space 

    Moves out free_space calculation code from EvmDatabaseOps.backup into a
helper method for later shared use.
    @NickLaMuro
    NickLaMuro committed May 31, 2018
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  4. Add EvmDatabaseOps.dump 

    Runs using the same setup as EvmDatabaseOps#backup, but runs a `pg_dump`
under the hood.  It uses the same method for determining if there is
enough diskspace for the dump as the backup method.  This isn't 100%
accurate, but it should be "Good Enough™".
    @NickLaMuro
    NickLaMuro committed May 31, 2018
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  5. Add evm:db:dump:local and evm:db:dump:remote tasks 

    Effectively a carbon copy of the `:backup` namespace tasks.
    @NickLaMuro
    NickLaMuro committed May 31, 2018
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  6. Add --exclude-table-data to evm:db:dump tasks 

    Allows excluding of specific tables from the database dump that may not
be necessary for the intended use.
    @NickLaMuro
    NickLaMuro committed May 31, 2018
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