Re: multiple diffs

viki wrote:
> I have file containing >20 pairs of pathnames, one pair per line:
>
> /path1/to/file1.OLD /path2/to.file1.NEW
> etc.
>
> I need to open vimdiff on multiple pairs of files
> such that I can switch forward to next pair, backward to
> previous pair, each time seeing vimdiff of that pair.
> How can I do it ? Is there a plugin that does such thing ?

Within your pathname file, you should be able to enter this (in
case it line-breaks between here and there, it should all be on
one line)

:nnoremap <buffer> <f4> :sil! only <bar> let
[a,b]=split(getline('.'))[:1] <bar> exec "sp ".a <bar> exec
"below vert diffsplit ".b<cr>

It chokes if you only have one filename on the line, and tromps
variables named "a" and "b" in the local context, but should
allow you to easily hit <f4> on any line in your file and get a
diff of the two files.

Note that because Vim only allows diffing up to 4 files (and I
believe they all have the same differences tested, so in your
case, 2 is a more practical limit) it closes all other windows
(intentionally the diffing windows, but will also close other
windows you have open) with :only so that the next opening gives
you a fresh diff. The limit is documented at ":help E96".

-tim

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