On 3/21/2019 3:23 PM, Richard W.M. Jones wrote:
So what? On Fedora /bin/sh is bash, and bash is a fine shell.
All this nonsense of using dash for /bin/sh on Debian is IMO a
pointless bunch of make-work.
Fedora has certainly made a lot of make-work projects over the last
decade, under arguably more questionable reasoning.
IMO the situation that we're in now ("Assume you're running in bash, but
called as -/bin/sh") is a worst-of-both-worlds middle ground, somewhat
akin to mandating webpages be written in IE Quirks Mode for all time.
It's neither pedantically correct, nor flexible for users and
downstreams. And the resolution from all of this last time remains
lacking in the guarantees that an independent spec should have:
http://web.archive.org/web/20150821020837/http://rpm.org/ticket/877
https://pagure.io/packaging-committee/issue/184
<
https://pagure.io/packaging-committee/issue/184>https://bugzilla.redha...
via
https://lists.fedoraproject.org/pipermail/devel/2014-October/202998.html
RPM should IMHO indicate scriptlets are to be written in Bourne shell,
give a 'SHOULD'-level recommendation for POSIX-correctness, and provide
a mechanism for distros to override that default. And If Fedora's
packaging guidelines are going to continue to state that bashisms are
completely OK, then it should use that override mechanism to set the
shell to "/bin/bash" explicitly.
-jc