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.. -*- mode: indented-text; compile-command: "rest2html TODO >doc/todo.html" -*-
*******************
Things to do in bzr
*******************
See also various low-level TODOs in the source code. Try looking in
the list archive or on gmane.org for previous discussion of these
issues.
These are classified by approximate size: an hour or less, a day or
less, and several days or more.
Small things
------------
* Add of a file that was present in the base revision should put back
the previous file-id.
* Handle diff of files which do not have a trailing newline; probably
requires patching difflib to get it exactly right, or otherwise
calling out to GNU diff.
* Import ElementTree update patch.
* Syntax should be ``bzr export -r REV``.
* "cat -rREV FILE"
* Plugins that provide commands. By just installing a file into some
directory (e.g. ``/usr/share/bzr/plugins``) it should be possible to
create new top-level commands (``bzr frob``). Extensions can be
written in either Python (in which case they use the bzrlib API) or
in a separate process (in sh, C, whatever). It should be possible
to get help for plugin commands.
* Smart rewrap text in help messages to fit in $COLUMNS (or equivalent
on Windows)
* -r option should take a revision-id as well as a revno.
* ``bzr info`` could show space used by working tree, versioned files,
unknown and ignored files.
* ``bzr info`` should count only people with distinct email addresses as
different committers. (Or perhaps only distinct userids?)
* On Windows, command-line arguments should be `glob-expanded`__,
because the shell doesn't do this. However, there are probably some
commands where this shouldn't be done, such as 'bzr ignore', because
we want to accept globs.
__ http://mail.python.org/pipermail/python-list/2001-April/037847.html
* 'bzr ignore' command that just adds a line to the .bzrignore file
and makes it versioned.
* 'bzr help commands' should give a one-line summary of each command.
* Any useful sanity checks in 'bzr ignore'? Perhaps give a warning if
they try to add a single file which is already versioned, or if they
add a pattern which already exists, or if it looks like they gave an
unquoted glob.
Medium things
-------------
* Display command grammar in help messages rather than hardcoding it.
* Change command functions into Command() objects, like in hct, and
then the grammar can be described directly in there. Since all
option definitions are global we can define them just once and
reference them from each command.
* Selective commit of only some files.
* Faster diff/status.
Status should be handled differently because it needs to report on
deleted and unknown files. diff only needs to deal with versioned
files.
* Merge Aaron's merge code.
* Merge revert patch.
* Turn on stat cache code, and add optimization about avoiding
dangerous cache entries.
* mv command?
* More efficient diff of only selected files.
* Fix up Inventory objects to represent root object as an entry.
* Don't convert entire entry from
* Extract changes from one revision to the next to a text form
suitable for transmission over email.
* More test cases.
* Write a reproducible benchmark, perhaps importing various kernel versions.
* Change test.sh from Bourne shell into something in pure Python so
that it can be more portable.
* Directly import diffs! It seems a bit redundant to need to rescan
the directory to work out what files diff added/deleted/changed when
all the information is there in the diff in the first place.
Getting the exact behaviour for added/deleted subdirectories etc
might be hard.
At the very least we could run diffstat over the diff, or perhaps
read the status output from patch. Just knowing which files might
be modified would be enough to guide the add and commit.
Given this we might be able to import patches at 1/second or better.
* Get branch over http.
* Pull pure updates over http.
* revfile compression.
* Split inventory into per-directory files.
* Fix ignore file parsing:
- fnmatch is not the same as unix patterns
- perhaps add extended globs from rsh/rsync
- perhaps a pattern that matches only directories or non-directories
* Consider using Python logging library as well as/instead of
bzrlib.trace.
* Change to using gettext message localization.
* Make a clearer separation between internal and external bzrlib
interfaces. Make internal interfaces use protected names. Write at
least some documentation for those APIs, probably as docstrings.
Consider using ZopeInterface definitions for the external interface;
I think these are already used in PyBaz. They allow automatic
checking of the interface but may be unfamiliar to general Python
developers, so I'm not really keen.
* Commands to dump out all command help into a manpage or HTML file or
whatever.
Large things
------------
* Generate annotations from current file relative to previous
annotations.
- Is it necessary to store any kind of annotation where data was
deleted?
* Update revfile format and make it active:
- Texts should be identified by something keyed on the revision, not
an individual text-id. This is much more useful for annotate I
think; we want to map back to the revision that last changed it.
- Access revfile revisions through the Tree/Store classes.
- Check them from check commands.
- Store annotations.
* Hooks for pre-commit, post-commit, etc.
Consider the security implications; probably should not enable hooks
for remotely-fetched branches by default.
* Pre-commit check. If this hook is defined, it needs to be handled
specially: create a temporary directory containing the tree as it
will be after the commit. This means excluding any ignored/unknown
files, and respecting selective commits. Run the pre-commit check
(e.g. compile and run test suite) in there.
* Web interface
* GUI (maybe in Python GTK+?)
* C library interface
* Expansion of $Id$ keywords within working files. Perhaps do this in
exports first as a simpler case because then we don't need to deal
with removing the tags on the way back in.
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