Teemu Likonen <tlikonen@xxxxxx> writes:
> Jeff King wrote (2008-08-20 14:00 -0400):
>
> > There is a lot of room for discussion here.
> >
> > For example:
> >
> > - what should %d show? Right now it shows each decoration, split by
> > commas. It doesn't show the enclosing parentheses automatically.
> >
> > Is this too strict? Should there be some way of pulling out
> > individual decorations from the list, or specifying a different
> > delimiter? If so, probably that should be part of a general
> > improvement in the format expansion macro language.
>
> If such "general improvement" takes place I'd like to point out (most
> likely old news, but anyway) that %b can't be indented in practical
> sense. For example [...]
We can take a look how rpm handling of --queryformat option handles
it.
First, it uses %{NAME} notation instead of %X shorthand for writing
single header (git-for-each-ref uses %(name) instead, so we might want
to use %(...) instead of %{...}, or use both). It allows use of
printf(3) type formatters, which include field width and align, for
example "%-30{NAME} %10{SIZE}\n".
Second, for displaying arrays (like list of files, or list of
dependencies) or multi line output like package description it prints
each item in the array, or each line in multi-line field within qeuare
brackets, e.g. "[%-50{FILENAMES} %10{FILESIZES}\n]". If one want to
repeat single-valued field one should use %{=NAME} syntax (actually it
simply takes first line/first element of array), e.g.
"[%{=NAME}: %{FILENAMES}\n]"
Queryformat minilanguage is more reach, see /usr/share/doc/rpm-*/queryformat
or http://rpm5.org/docs/api/queryformat.html
--
Jakub Narebski
Poland
ShadeHawk on #git
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