From fc914153d433b063b9ed11f3ace668c5c866f379 Mon Sep 17 00:00:00 2001 From: Martijn Dekker Date: Wed, 7 Mar 2018 17:32:29 +0000 Subject: builtin: Greater resolution in test -nt / test -ot MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Op 07-03-18 om 15:46 schreef Martijn Dekker: > Op 06-03-18 om 09:19 schreef Herbert Xu: >> On Thu, Jun 22, 2017 at 10:30:02AM +0200, Petr Skočík wrote: >>> would you be willing to pull something like this? > [...] >>> I could use greater resolution in `test -nt` / `test -ot`, and st_mtim >>> field is standardized under POSIX.1-2008 (or so stat(2) says). >> >> Sure. But your patch is corrupted. > > Fixed patch attached. > > But I wouldn't apply it as is. My system does not have st_mtim. So I > think it needs a configure test and a fallback to the old method. Here's an attempt to make that happen. See attached. - M. Signed-off-by: Herbert Xu --- src/bltin/test.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'src/bltin') diff --git a/src/bltin/test.c b/src/bltin/test.c index 58c05fe..d1458df 100644 --- a/src/bltin/test.c +++ b/src/bltin/test.c @@ -476,9 +476,17 @@ newerf (const char *f1, const char *f2) { struct stat b1, b2; +#ifdef HAVE_ST_MTIM + return (stat (f1, &b1) == 0 && + stat (f2, &b2) == 0 && + ( b1.st_mtim.tv_sec > b2.st_mtim.tv_sec || + (b1.st_mtim.tv_sec == b2.st_mtim.tv_sec && (b1.st_mtim.tv_nsec > b2.st_mtim.tv_nsec ))) + ); +#else return (stat (f1, &b1) == 0 && stat (f2, &b2) == 0 && b1.st_mtime > b2.st_mtime); +#endif } static int @@ -486,9 +494,17 @@ olderf (const char *f1, const char *f2) { struct stat b1, b2; +#ifdef HAVE_ST_MTIM + return (stat (f1, &b1) == 0 && + stat (f2, &b2) == 0 && + (b1.st_mtim.tv_sec < b2.st_mtim.tv_sec || + (b1.st_mtim.tv_sec == b2.st_mtim.tv_sec && (b1.st_mtim.tv_nsec < b2.st_mtim.tv_nsec ))) + ); +#else return (stat (f1, &b1) == 0 && stat (f2, &b2) == 0 && b1.st_mtime < b2.st_mtime); +#endif } static int -- cgit 1.4.1