You'll need two things; ``computed-file'', and the ``(ice-9 popen)'' standard library module. ``computed-file'' allows you to build a file-like object from arbitrary code. Have a look here for an example from my configuration,https://git.sr.ht/~unmatched-paren/conf/tree/root/item/home.scm#L168 which removes all ``//'' comments from ``waybar.json'' before writing the result to the store path. Also see the Guix and Guile manuals on these two subjects, ``(ice-9 popen)'': https://www.gnu.org/software/guile/manual/html_node/Pipes.html ``computed-file'': https://guix.gnu.org/manual/en/html_node/G_002dExpressions.html#index-computed_002dfile
Thanks for your pointers, will try if I can fiddle something together!
Best,
Reza
--
Reza Housseini
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