tigefa4u projects Trac

WikiRename (rebasing r6422): add a method to the model for renaming a wiki page in-place.

New methods:
- `WikiPage.rename(self, new_name, db=None)`
- `Attachment.reparent_all(cls, env, old_realm, old_id, new_realm, new_id, db)`

Implementation note for `Attachment.reparent_all`: we move files individually instead of the whole folder, because:
1. this will work even if the new resource already exists (e.g. for merges)
2. it's complex when the new resource is a sub-folder if the old one
3. it's simply not possible in the general case (e.g. when the new page doesn'titself exist, but there are already sub-folders)

Note also that it's because of 3. (sub-folders may exists) that we don't remove the old attachment folder after the reparent.

WikiRename (rebasing r6421): simplify transaction handling in the Wiki model

The !WikiPage public API is not modified. A helper `transaction` function is used to factor out the `handle_ta` business. Its usage is very simple:
- if the function is given a database connection, it will simply execute the callback as part of another transaction,
- if the function has to retrieve a new database connection, it takes responsibility to either `commit` the changes performed by the callback or to `rollback` them, if any exception was raised.

TODO: similar changes could apply to `trac.ticket.model`

Recreate WikiRename branch for rebasing log:sandbox/wiki-rename@...

0.12dev: merged revisions r7320 and r7327 from 0.11-stable (r7325 was already merged), via svnmerge.

Rebase WikiRename branch

Retiring old [VcRefactoring/Controller] branch

Retiring old TracCrossReferences branch

Replace an user visible assert by a more explicit !TracError (closes #6999)

merge r7325 to trunk (make scripts generated by "deploy" command use sys.executable instead of hardcoding `/usr/bin/python` so that they work in virtualenv or other setups)

make scripts generated by "deploy" command use sys.executable instead of hardcoding `/usr/bin/python` so that they work in virtualenv or other setups