Package: procps Version: 2:3.3.14-1 Severity: normal Tags: upstream Dear Maintainer,
I just upgraded procps from 2:3.3.12-4 to 2:3.3.14-1 and my scripting
started to produce unexpected and (in my case) pointless messages on
stderr, because apparently I like to do the following:
| $ pgrep "something|otherthing"
| pgrep: pattern that searches for process name longer than 15 characters will
result in zero matches
| Try `pgrep -f' option to match against the complete command line.
| $
This is a regression, and I seem to have no reasonable workaround:
My pattern is indeed a (posix extended) regex, which tends to be longer than
the string matched, and thus can easily be longer than 15 chars. There might
legitimately be no matching process running. I mustn't match on the whole
command line, as that would match, for example, "/usr/local/bin/retry
something".
I don't want to blindly throw away stderr, in case there ever are actual
errors.
So please make that text go away, or at least give me a way to disable it.
</bugreport>
Looking at the code in pgrep.c shows the following condition:
> if ((!matches) && (!opt_full) && opt_pattern && (strlen(opt_pattern) > 15))
> xwarnx(_("pattern that....
My solution/hack would probably be to just add a
> && (strchr(opt_pattern,'[') != NULL)
there, allowing me to silence the warning by doing
$ pgrep "s[o]mething|otherthing"
and if neccessary blame people for not testing regexes. But I'd be fine with
$ pgrep --i-know-about-the-length-restriction-shut-up-already
"something|otherthing"
too, whatever you/upstream consider reasonable. ;)
If you decide on a fix and want it implemented or a patch you want
tested, please holler, I'd be happy to help.
Thanks for maintaining procps,
regards,
Jan
-- System Information:
Debian Release: buster/sid
APT prefers testing
APT policy: (990, 'testing'), (650, 'testing-debug'), (550,
'unstable-debug'), (550, 'unstable'), (10, 'experimental-debug'), (10,
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.15.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8
(charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages procps depends on:
ii init-system-helpers 1.51
ii libc6 2.27-3
ii libncurses5 6.1-1
ii libncursesw5 6.1-1
ii libprocps6 2:3.3.14-1
ii libtinfo5 6.1-1
ii lsb-base 9.20170808
Versions of packages procps recommends:
ii psmisc 23.1-1
procps suggests no packages.
-- no debconf information
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