On Fri, Dec 22, 2017 at 12:14 AM, René Scharfe <l.s.r@xxxxxx> wrote:
> Avoid a magic number of NULL placeholder values and a magic index by
> constructing the command line for pack-objects using the embedded
> argv_array of the child_process. The resulting code is shorter and
> easier to extend.
>
> Signed-off-by: Rene Scharfe <l.s.r@xxxxxx>
Reviewed-by: Stefan Beller <sbeller@xxxxxxxxxx>
> ---
> send-pack.c | 28 +++++++++-------------------
> 1 file changed, 9 insertions(+), 19 deletions(-)
>
> diff --git a/send-pack.c b/send-pack.c
> index a8cc6b266e..2112d3b27a 100644
> --- a/send-pack.c
> +++ b/send-pack.c
> @@ -58,35 +58,25 @@ static int pack_objects(int fd, struct ref *refs, struct oid_array *extra, struc
> * the revision parameters to it via its stdin and
> * let its stdout go back to the other end.
> */
> - const char *argv[] = {
> - "pack-objects",
> - "--all-progress-implied",
> - "--revs",
> - "--stdout",
> - NULL,
> - NULL,
> - NULL,
> - NULL,
> - NULL,
> - NULL,
> - };
> struct child_process po = CHILD_PROCESS_INIT;
> FILE *po_in;
> int i;
> int rc;
>
> - i = 4;
> + argv_array_push(&po.args, "pack-objects");
> + argv_array_push(&po.args, "--all-progress-implied");
> + argv_array_push(&po.args, "--revs");
> + argv_array_push(&po.args, "--stdout");
(useless nit of the day, no need to resend:)
These four statements could be done as pushl(a,b,c, NULL);
but it would not differ in readability, so I guess either is fine.
Thanks,
Stefan
> if (args->use_thin_pack)
> - argv[i++] = "--thin";
> + argv_array_push(&po.args, "--thin");
> if (args->use_ofs_delta)
> - argv[i++] = "--delta-base-offset";
> + argv_array_push(&po.args, "--delta-base-offset");
> if (args->quiet || !args->progress)
> - argv[i++] = "-q";
> + argv_array_push(&po.args, "-q");
> if (args->progress)
> - argv[i++] = "--progress";
> + argv_array_push(&po.args, "--progress");
> if (is_repository_shallow())
> - argv[i++] = "--shallow";
> - po.argv = argv;
> + argv_array_push(&po.args, "--shallow");
> po.in = -1;
> po.out = args->stateless_rpc ? -1 : fd;
> po.git_cmd = 1;
> --
> 2.15.1
