* Reduce forking overhead in precmd()
@ 2002-09-18 22:31 Paul Lew
2002-09-18 22:47 ` Clint Adams
0 siblings, 1 reply; 3+ messages in thread
From: Paul Lew @ 2002-09-18 22:31 UTC (permalink / raw)
To: zsh-users
I have a precmd() that I would like to augment to include source
control freeze info (we use clearcase, a freeze will change the way
files are represented).
precmd ()
{
....
if [[ $CLEARCASE_ROOT != "" ]]; then
RPROMPT=${RPROMPT:s/"%S f %s "//}
cleartool catcs | grep time > /dev/null
if [[ $? == 0 ]]; then
RPROMPT="%S f %s %$RPROMPT"
fi
fi
}
Basically the "cleartool catcs" command is required, if its output
contain 'time', then there is a freeze condition which I will modify
the RPROMPT to include an indicator.
However, this still added 2 more forks per command and the response is
not that desirable. Any way to speed this up, for example, is there
a way in zsh to replace the 'grep' above?
Thanks in advance.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Reduce forking overhead in precmd()
2002-09-18 22:31 Reduce forking overhead in precmd() Paul Lew
@ 2002-09-18 22:47 ` Clint Adams
2002-09-19 1:25 ` Paul Lew
0 siblings, 1 reply; 3+ messages in thread
From: Clint Adams @ 2002-09-18 22:47 UTC (permalink / raw)
To: Paul Lew; +Cc: zsh-users
> cleartool catcs | grep time > /dev/null
> if [[ $? == 0 ]]; then
> RPROMPT="%S f %s %$RPROMPT"
> fi
You could do something like
[[ -n ${${(M)${$(cleartool catcs)}:#*time*}} ]] && RPROMPT="%S f %s %$RPROMPT"
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Reduce forking overhead in precmd()
2002-09-18 22:47 ` Clint Adams
@ 2002-09-19 1:25 ` Paul Lew
0 siblings, 0 replies; 3+ messages in thread
From: Paul Lew @ 2002-09-19 1:25 UTC (permalink / raw)
To: Clint Adams; +Cc: zsh-users
>>>>> "Clint" == Clint Adams <clint@zsh.org> writes:
Clint> You could do something like:
Clint> [[ -n ${${(M)${$(cleartool catcs)}:#*time*}} ]] &&
Clint> RPROMPT="%S f %s %$RPROMPT"
That works, however, it turns out that the weakiest link is the
'cleartool catcs' command and optimized out grep did not help much.
Now I have moved this section into periodic function and the result is
much better. Thanks!!
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2002-09-19 1:26 UTC | newest]
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2002-09-18 22:31 Reduce forking overhead in precmd() Paul Lew
2002-09-18 22:47 ` Clint Adams
2002-09-19 1:25 ` Paul Lew
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