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Re: pre-push signature hook error reporting [was Re: [PATCH v6] gnu: pyt
Re: pre-push signature hook error reporting [was Re: [PATCH v6] gnu: python-sphinx: Update to 1.4.8.]
Tue, 17 Jan 2017 14:44:25 -0500
On Tue, Jan 17, 2017 at 01:56:29PM +0100, Hartmut Goebel wrote:
> Am 17.01.2017 um 12:34 schrieb Danny Milosavljevic:
> > For minimal improvement (I don't even think it's measureable), try
> > `git rev-list HEAD` (backquotes) - it prevents having to spawn a
> > subshell.
> Huh? I doubt this. The bash manual, section "Command Substitution" does
> not distinguish between these both, as far as I understand it.
The POSIX shell command language specification says that:
"The shell shall expand the command substitution by executing command in
a subshell environment (see Shell Execution Environment) and replacing
the command substitution (the text of command plus the enclosing "$()"
or backquotes) with the standard output of the command, removing
sequences of one or more <newline>s at the end of the substitution."
Maybe it's faster, maybe not, but I think my benchmark was