In python3.4, there is a circular dependency between the config module
and configmodel.bind. This is resolved by dependency injection. The
config/keyconfig instances are embedded in a struct passed to every
completion function, so the functions no longer depend on the modules.
This will also enable completion functions to access other previously
inaccessible info, such as the window id.
See #2814.
When upgrading from an old table that used different url formatting, two
entries might map to the same key, so we'll need to replace the previous
entry to avoid a primary key conflict.
Incrementing _USER_VERSION in the source will cause the
HistoryCompletion table to regenerate when users update.
This is currently necessary to support some recent formatting fixes, but
could be incremented again in the future for other changes.
When in miscmodels, the config module was unable to find the function.
It appears to be some sort of circular import issue:
```
File "/home/rcorre/projects/contrib/qutebrowser/qutebrowser/app.py", line 44, in <module>
from qutebrowser.completion.models import miscmodels
File "/home/rcorre/projects/contrib/qutebrowser/qutebrowser/completion/models/miscmodels.py", line 24, in <module>
from qutebrowser.completion.models import completionmodel, listcategory, util
File "/home/rcorre/projects/contrib/qutebrowser/qutebrowser/completion/models/util.py", line 24, in <module>
from qutebrowser.config import config
File "/home/rcorre/projects/contrib/qutebrowser/qutebrowser/config/config.py", line 223, in <module>
class ConfigCommands:
File "/home/rcorre/projects/contrib/qutebrowser/qutebrowser/config/config.py", line 314, in ConfigCommands
@cmdutils.argument('command', completion=miscmodels.bind)
AttributeError: module 'qutebrowser.completion.models.miscmodels' has no attribute 'bind'
```
As configmodel imports util (and thereby config as well) it is unclear
to me why moving bind() to configmodel actually fixes this, but it does.
If the HistoryCompletion table is removed, regenerate it from the
History table. This allows users to manually edit History, then remove
HistoryCompletion to prompt regeneration.
See #2903.
Encode urls that are inserted into the history, but do not encode urls
for completion (other than removing passwords).
Also ensure that urls read from the history text file are formatted
consistenly with those added while browsing.
Fixes#2903.
