ska3-template is broken on osx due to sed POSIX thingy

[jeanconn]

Basically, I think I need to replace

sed -i "searchandreplacethingy" filename

with

sed -i "" "searchandreplacethingy" filename

I think the explicit empty string is needed for the -i option to the sed command. From the help it is really "sed [-i extension]" and it looks like on linux sed must be smart enough to figure out that the "searchandreplace" command is a command and not a file extension if you neglect to put something for the inplace file extension.

I think this won't need to build on osx if we can noarch the template, but all the recipes should really work.

Without the empty string for -i, on the mac I get something like

sed -i "s|%{PREFIX}%|${PREFIX}|" ska_conda/pkg_defs/ska3-template/bin/flt_envs
sed: 1: "ska_conda/pkg_defs/ska3 ...": bad flag in substitute command: 'a'

[jeanconn]

Might also be able to just put the "-i" after the command.

[taldcroft]

I just looked and on linux the -i needs to be followed by the replacement character(s) with no space, i.e. -i.bak.

[jeanconn]

Gotcha, which explains why it was working on linux (not magically understanding that my command string wasn't a file extension, just no characters directly after the -i).

[jeanconn]

And which probably also means I didn't test #28 correctly on linux. I'll make sure I have a works-on-both solution in the PR before I'm done.

[taldcroft]

Closed by #28 (which eliminates sed entirely)