comparison mercurial/upgrade_utils/engine.py @ 46467:45c3a263d5d1

engine: 'if not, else' -> 'if, else'

I personally feel that

```
if x:
    pass
else:
    pass
```

is easier to read and edit than

```
if not x:
    pass
else:
    pass
```

Next patches will add one more if-else clause.

Differential Revision: https://phab.mercurial-scm.org/D9931

46466:3e3b81b6e7da

            b'(it is safe to interrupt this process any time before '
            b'data migration completes)\n'
        )
    )

    if not upgrade_op.requirements_only:
        with dstrepo.transaction(b'upgrade') as tr:
            _clonerevlogs(
                ui,
                srcrepo,
                dstrepo,

            # The lock file from the old store won't be removed because nothing has a
            # reference to its new location. So clean it up manually. Alternatively, we
            # could update srcrepo.svfs and other variables to point to the new
            # location. This is simpler.
            backupvfs.unlink(b'store/lock')
    else:
        ui.status(_(b'upgrading repository requirements\n'))
        scmutil.writereporequirements(srcrepo, upgrade_op.new_requirements)

    return backuppath

46467:45c3a263d5d1

            b'(it is safe to interrupt this process any time before '
            b'data migration completes)\n'
        )
    )

    if upgrade_op.requirements_only:
        ui.status(_(b'upgrading repository requirements\n'))
        scmutil.writereporequirements(srcrepo, upgrade_op.new_requirements)
    else:
        with dstrepo.transaction(b'upgrade') as tr:
            _clonerevlogs(
                ui,
                srcrepo,
                dstrepo,

            # The lock file from the old store won't be removed because nothing has a
            # reference to its new location. So clean it up manually. Alternatively, we
            # could update srcrepo.svfs and other variables to point to the new
            # location. This is simpler.
            backupvfs.unlink(b'store/lock')

    return backuppath