On Thu, Jun 25, 2015 at 1:43 PM, Karthik Nayak <karthik....@gmail.com> wrote:
> Add support for %(refname:lalignX) where X is a number.
> This will print a shortened refname aligned to the left
> followed by spaces for a total length of X characters.
> If X is less than the shortened refname size, the entire
> shortened refname is printed.
>
> Mentored-by: Christian Couder <christian.cou...@gmail.com>
> Mentored-by: Matthieu Moy <matthieu....@grenoble-inp.fr>
> Signed-off-by: Karthik Nayak <karthik....@gmail.com>
> ---
> ref-filter.c | 17 ++++++++++++++++-
> 1 file changed, 16 insertions(+), 1 deletion(-)
>
> diff --git a/ref-filter.c b/ref-filter.c
> index 00d06bf..299b048 100644
> --- a/ref-filter.c
> +++ b/ref-filter.c
> @@ -695,7 +695,22 @@ static void populate_value(struct ref_array_item *ref)
> int num_ours, num_theirs;
>
> formatp++;
> - if (!strcmp(formatp, "short"))
> + if (starts_with(formatp, "lalign")) {
> + const char *valp;
> + int val;
> +
> + skip_prefix(formatp, "lalign", &valp);
> + val = atoi(valp);
After thinking about such code, I wonder if it would be better to
support %(refname:lalign=X) instead of %(refname:lalignX).
The reason why it might be interesting to require an = sign between
"align" and the number X is that if we later want to introduce another
option with a name that starts with "lalign", for example
%(refname:lalignall=X) that would truncate the refname if it is bigger
than X), we might be more backward compatible with old git versions
that implement %(refname:lalign=X) but not %(refname:lalignall=X).
We will be more backward compatible because the above call to
starts_with() would probably be something like:
if (starts_with(formatp, "lalign=")) {
which means that old git versions would ignore something like "lalignall=X".
> + refname = shorten_unambiguous_ref(refname,
> +
> warn_ambiguous_refs);
> + if (val > strlen(refname)) {
> + struct strbuf buf = STRBUF_INIT;
> + strbuf_addstr(&buf, refname);
> + strbuf_addchars(&buf, ' ', val -
> strlen(refname));
> + free((char *)refname);
> + refname = strbuf_detach(&buf, NULL);
> + }
Thanks,
Christian.
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