Re: Manual says "diff -uR" but macOS diff doesn't support "-R"
On Aug 11, 2019, at 14:37, Andrew Udvare wrote: > On Aug 11, 2019, at 14:52, Gerben Wierda wrote: >> >> The manual says: >> >> diff -uR $(port dir $portname) . > change-$portname-maintainer.diff >> >> However, macOS Mojave’s diff doesn’t understand that. -R is an invalid >> option. I’m not going to guess here, so what is it supposed to be? > > Install coreutils and then run gdiff. coreutils does not provide diff or gdiff. diffutils does. But there's no need to install this version of diff unless you really want it. > I believe on BSD diff it's -r. The manual of diffutils' diff doesn't mention a -R option either; it only mentions -r. Whoever put that in our documentation probably got confused and was thinking of cp, which has a deprecated -r option and where you should use -R instead. I've fixed our documentation. https://github.com/macports/macports-guide/commit/05aab42697a585ed32604b101397393ac16114f1
Re: Manual says "diff -uR" but macOS diff doesn't support "-R"
-- Andrew Udvare > On 2019-08-11, at 15:44, Bill Cole > wrote: > > I feel quite safe guessing that since the argument is a directory, it's a > simple capitalization error, and should be 'r' instead of 'R' I was thinking the same thing. I'm so used to typing diff -urN so often I never really noticed.
Re: Manual says "diff -uR" but macOS diff doesn't support "-R"
On 11 Aug 2019, at 14:52, Gerben Wierda wrote: Busy adopting nsd (currently no maintainer). I have created a Portfile for the last version and added Startupitem statements. Everything works here. The manual says: diff -uR $(port dir $portname) . > change-$portname-maintainer.diff However, macOS Mojave’s diff doesn’t understand that. -R is an invalid option. It's not valid in any common variety of diff. I’m not going to guess here, so what is it supposed to be? I feel quite safe guessing that since the argument is a directory, it's a simple capitalization error, and should be 'r' instead of 'R' -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses)
