bug#14443: 24.3.50; log-view-diff and log-view-diff-changeset broken in vc-bzr-change-log-mode and vc-annotate-mode (on w32)

[Dmitry Gutov]

On 23.05.2013 20:09, Glenn Morris wrote:
> Can you edebug it and find out exactly what filename is passed to the OS?
> Presumably it doesn't like it for some reason.

vc-bzr.el uses lexical-binding, so `edebug-eval-expression' doesn't 
help. Putting a `message' call in `vc-bzr-diff' yields this:

files: (~/vc/emacs-bzr/trunk/) buffer: *vc-diff* rev1: 112671 rev2: 112672

> Dmitry, you will have to dig deeper.  E.g., what command is sent down
> to bzr in this case and barfs?

I'm not sure how to find out. `vc-do-command' receives the following 
arguments:

buffer: *vc-diff* command: bzr file-or-list: nil flags: (diff 
--diff-options -u -r 112671..112672)

By the way, here's a (somewhat related) command that fails when invoked 
from command line:

  bzr diff --diff-options -U0

(`bzr diff' works fine.)

Does Bazaar require additional programs to be installed? After recent 
overhaul of my MinGW installation, a number of Unix utilities became 
unavailable globally, including `diff'.