Script command to download archive and calculate SHA etc.?

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Hi,

Is there a command I could use in my script, other than 0template, that
would take a nearly-complete feed.xml, and just download the
.zip/.tar.gz/... archive I specified, and then calculate the missing SHA,
size, and other derived data, and insert them back into the .xml file?

I'm writing a script to bulk-generate feeds for Vim plugins I use. I am
currently passing them through 0template as a workaround, but 0template
fetched a surprising amount of dependencies, and generally I'm using it in
a very hackish way. I have kinda suspicion there might be just some simple
option in 0publish instead, that would do what I'm trying to describe?
There are quite many commands and options in 0install, and I'm still having
hard time wrapping my head around them and finding what I need - thus I'm
not sure if it's not there, or did I simply miss it?

Thanks & Best Regards,
/Mateusz Czapli=C5=84ski.

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<div dir=3D"ltr"><div>Hi,</div><div><br></div><div>Is there a command I cou=
ld use in my script, other than 0template, that would take a nearly-complet=
e feed.xml, and just download the .zip/.tar.gz/... archive I specified, and=
 then calculate the missing SHA, size, and other derived data, and insert t=
hem back into the .xml file?</div><div><br></div><div>I&#39;m writing a scr=
ipt to bulk-generate feeds for Vim plugins I use. I am currently passing th=
em through 0template as a workaround, but 0template fetched a surprising am=
ount of dependencies, and generally I&#39;m using it in a very hackish way.=
 I have kinda suspicion there might be just some simple option in 0publish =
instead, that would do what I&#39;m trying to describe? There are quite man=
y commands and options in 0install, and I&#39;m still having hard time wrap=
ping my head around them and finding what I need - thus I&#39;m not sure if=
 it&#39;s not there, or did I simply miss it? <br></div><div><br></div><div=
>Thanks &amp; Best Regards,</div><div>/Mateusz Czapli=C5=84ski.<br></div></=
div>

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