Hello Guix! As a resolution to <http://bugs.gnu.org/20067>, (guix gexp) provides a new construct, ‘file-append’, which can be used to express the concatenation of file name components.
Previously, we would typically write: #~(string-append #$coreutils "/bin/uname") which would lead to an sexp like: (string-append "/gnu/store/…-coreutils-8.25" "/bin/uname") Now we can still do that, but we can also write: (file-append coreutils "/bin/uname") which leads to: "/gnu/store/…-coreutils-8.25/bin/uname" This is necessary in some situations, such as that of #20067, and it saves a little bit of typing and doesn’t cost much. In 9e41130b14ad32c4e1fa756f95d806703056cb60 I converted a bunch of GuixSD modules to this new style (apologies to those who will experience merge conflicts ;-)). Comments welcome! Ludo’.
