On Fri, Sep 06, 2024 at 01:55:46PM -0600, Brooke Kuhlmann wrote:
> ```
> git tag --list \
> --format="%(refname:short) %(taggerdate:short) %(taggername) %(subject) %(trailers:key=Files) %(trailers:key=Duration)"
> ```
>
> ...I get this output:
>
> 0.0.0 2024-09-06 Brooke Kuhlmann Version 0.0.0 Files: 1
> Duration: 1
> Files: 1
> Duration: 1
>
> 0.0.1 2024-09-06 Brooke Kuhlmann Version 0.0.1 Files: 1
> Duration: 1
> Files: 1
> Duration: 1
>
> Notice, when logging trailer information for commits and tags, I get
> unexpected new line characters showing up in the output. I expect to
> see all information printed on the same line without any new lines
> showing up.
>
> Also, I want to point out that when listing tag trailers, I get the
> "Duration" key showing up twice. I'm not sure if that's related or not
> but seems like very weird behavior.
There are two things going on here:
1. Some of the trailer options are stored in a global, rather than a
per-placeholder basis. This includes the list of keys to show. So
you basically end up with a filter list that includes _both_ keys,
and that list is used for both %(trailers) items.
IMHO this is a bug, and I have a patch (which I'll send along with
the one I mentioned in the other thread) to fix it.
In the meantime you can work around it by specifying both keys in
a single invocation, like:
%(trailers:key=Files,key=Duration)
Obviously that doesn't work if you don't want them adjacent in the
final output.
2. By default, each trailer is terminated with a newline. But you can
specify your own separator, like so:
%(trailers:key=Files,key=Duration,separator= )
See the documentation for the trailers placeholder in "git help
log". Depending on your trailers, "valueonly" might also be useful
for this kind of formatting.
-Peff
