On Mon, Jul 27, 2015 at 6:12 PM, Matthieu Moy
<matthieu....@grenoble-inp.fr> wrote:
> Karthik Nayak <karthik....@gmail.com> writes:
>
>> +static void ref_formatting(struct ref_formatting_state *state,
>> + struct atom_value *v, struct strbuf *value)
>> {
>> - struct strbuf sb = STRBUF_INIT;
>> - switch (quote_style) {
>> + strbuf_addf(value, "%s", v->s);
>> +}
>
> You're taking 'state' as argument, but you're not using it in the
> function for now. Perhaps add a temporary comment like:
>
> static void ref_formatting(...)
> {
> /* Formatting according to 'state' will be applied here */
> strbuf_addf(...)
> }
>
> Or perhaps it's OK like this.
I thought it'd be OK since it doesn't have any adverse effect, but I added
the comment you suggested nonetheless.
>
>> -static void print_value(struct atom_value *v, int quote_style)
>> +static void print_value(struct ref_formatting_state *state, struct
>> atom_value *v)
>
> Changing the position of the v parameter makes the patch a bit harder to
> read. I would have written in this order:
>
> static void print_value(struct atom_value *v, struct ref_formatting_state
> *state)
>
> So the patch reads as "encapsulate quote_style in a struct" more
> straightforwardly.
>
I need to be more careful about things like this, thanks.
>> @@ -1257,6 +1269,10 @@ static void emit(const char *cp, const char *ep)
>> void show_ref_array_item(struct ref_array_item *info, const char *format,
>> int quote_style)
>> {
>> const char *cp, *sp, *ep;
>> + struct ref_formatting_state state;
>
> I still found it a bit hard to read, and I would have appreciated a
> comment here, like
>
> /*
> * Some (pseudo) atom have no immediate side effect, but only
> * affect the next atom. Store the relevant information from
> * these atoms in the 'state' variable for use when displaying
> * the next atom.
> */
>
This seems good, will add this.
> With this in mind, it becomes more obvious that you also need to reset
> the state after using it, which you forgot to do. See:
>
> $ ./git for-each-ref --format '%(padright:30)|%(refname)|%(refname)|'
> refs/tags/v2.4.\*
> |refs/tags/v2.4.0 |refs/tags/v2.4.0 |
> |refs/tags/v2.4.0-rc0 |refs/tags/v2.4.0-rc0 |
> |refs/tags/v2.4.0-rc1 |refs/tags/v2.4.0-rc1 |
> |refs/tags/v2.4.0-rc2 |refs/tags/v2.4.0-rc2 |
> |refs/tags/v2.4.0-rc3 |refs/tags/v2.4.0-rc3 |
> |refs/tags/v2.4.1 |refs/tags/v2.4.1 |
> |refs/tags/v2.4.2 |refs/tags/v2.4.2 |
> |refs/tags/v2.4.3 |refs/tags/v2.4.3 |
> |refs/tags/v2.4.4 |refs/tags/v2.4.4 |
> |refs/tags/v2.4.5 |refs/tags/v2.4.5 |
> |refs/tags/v2.4.6 |refs/tags/v2.4.6 |
>
> I think only the first column should have padding, not the second. You
> can fix this with a patch like this:
>
> --- a/ref-filter.c
> +++ b/ref-filter.c
> @@ -1431,6 +1431,14 @@ static void apply_pseudo_state(struct
> ref_formatting_state *state,
> state->ifexists = v->s;
> }
>
> +static void reset_formatting_state(struct ref_formatting_state *state)
> +{
> + int quote_style = state->quote_style;
> + memset(state, 0, sizeof(*state));
> + state->quote_style = quote_style;
> +}
> +
> +
> /*
> * If 'lines' is greater than 0, print that many lines from the given
> * object_id 'oid'.
> @@ -1492,8 +1500,11 @@ void show_ref_array_item(struct ref_array_item *info,
> const char *format,
> get_ref_atom_value(info, parse_ref_filter_atom(sp + 2, ep),
> &atomv);
> if (atomv->pseudo_atom)
> apply_pseudo_state(&state, atomv);
> - else
> + else {
> print_value(&state, atomv);
> + reset_formatting_state(&state);
> + }
> +
> }
> if (*cp) {
> sp = cp + strlen(cp);
>
If you saw the last patch series, i had them reset individually, I
missed that by mistake.
But what you're doing seems good, will integrate this. thanks :D
--
Regards,
Karthik Nayak
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