guix/etc/snippets/scheme-mode/guix-origin

# -*- mode: snippet -*-
# name: guix-origin
# key: origin...
# --
(origin
 (method ${1:$$(yas-choose-value "url-fetch"
                                 "url-fetch/tarbomb"
                                 "url-fetch/zipbomb"
                                 "cvs-fetch"
                                 "git-fetch"
                                 "hg-fetch"
                                 "svn-fetch")})
 (uri ${1:$(cond ((equal yas-text "git-fetch") "git-reference...")
                 ((equal yas-text "svn-fetch") "svn-reference...")
                 ((equal yas-text "hg-fetch")  "hg-reference...")
                 ((equal yas-text "cvs-fetch") "cvs-reference...")
                 (t "(string-append \\"https://\\" version \\".tar.gz\\")"))}$0)
 ${1:$(cond ((equal yas-text "git-fetch")
             "(file-name (git-file-name name version))")
            ((member yas-text '("svn-fetch" "hg-fetch" "cvs-fetch"))
             "(file-name (string-append name \\"-\\" version \\"-checkout\\"))")
            (t ""))}
 (sha256
  (base32
    "$2")))