On Thu, May 15, 2014 at 12:04 PM, Jonathan Nieder <jrnie...@gmail.com> wrote:
> Ronnie Sahlberg wrote:
>
>> [Subject: refs.c: add an err argument ro delete_loose_ref]
>
> s/ro/to/
> s/delete_loose_ref/delete_ref_loose/
>
>> --- a/refs.c
>> +++ b/refs.c
>> @@ -2484,17 +2484,22 @@ static int repack_without_ref(const char *refname)
>>       return repack_without_refs(&refname, 1, NULL);
>>  }
>>
>> -static int delete_ref_loose(struct ref_lock *lock, int flag)
>> +static int delete_ref_loose(struct ref_lock *lock, int flag, struct strbuf 
>> *err)
>
> Should this get an onerr flag to suppress the message to stderr
> or unconditionally suppress it when err != NULL?
>

Fixed.
I added a new function unlink_or_err that will update err if non-NULL
and unse warning() otherwise.


> [...]
>>               lock->lk->filename[i] = 0;
>> -             err = unlink_or_warn(lock->lk->filename);
>> +             res = unlink_or_warn(lock->lk->filename);
>
> It seems like in the new error handling scheme there should be a new
> variant on wrapper.c's warn_if_unremovable:
>
>         static int add_err_if_unremovable(const char *op, const char *file, 
> struct strbuf *err, int rc)
>         {
>                 int err = errno;
>                 if (rc < 0 && err != ENOENT) {
>                         strbuf_addf(err, "unable to %s %s: %s",
>                                     op, file, strerror(errno));
>                         errno = err;
>                 }
>                 return rc;
>         }
>
>         static int unlink_or_err(const char *file, struct strbuf *err)
>         {
>                 return add_err_if_unremovable("unlink", file, err, 
> unlink(file));
>         }
>
>                 res = unlink_or_err(lock->lk->filename, err);
--
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