Re: [PATCH] git-prompt.sh: shorter equal upstream branch name
From: Julien Carsique <hidden>
Date: 2016-06-15 23:02:39
Hi, Thank you both for your feedback! I'm looking at applying your requests: - add tests, - variable renaming, - use of local, - fix multiple issues on string parsing - avoid useless bash-isms? Did you agree on the ones I should remove? I'll send an updated patch asap. Tell me if I forgot something. Regards, Julien On 01/10/2014 19:49, Junio C Hamano wrote:
Richard Hansen [off-list ref] writes:quoted
quoted
and there is no hope to "fix" them to stick to the bare-minimum POSIX,I don't think it'd be hard to convert it to pure POSIX if there was a desire to do so.Not necessarily; if you make it so slow to be usable as a prompt script, that is not a "conversion". Bash-isms in the script is allowed for a reason, unfortunately.quoted
It would be unwise to go to great lengths to avoid Bashisms, but I think it would be smart to use POSIX syntax when it is easy to do so.In general, I agree with you. People who know only bash tend to overuse bash-isms where they are not necessary, leaving an unreadable mess. For the specific purpose of Julien's "if the tail part of this string matches the other string, replace that with an equal sign", ${parameter/pattern/string} is a wrong bash-ism to use. But the right solution to count the length of the other string and take a substring of this string from its beginning would require other bash-isms ${#parameter} and ${parameter:offset:length}. And that's fine.