diff options
Diffstat (limited to 'guix/gexp.scm')
| -rw-r--r-- | guix/gexp.scm | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/guix/gexp.scm b/guix/gexp.scm index 770b79e012..f7def5862b 100644 --- a/guix/gexp.scm +++ b/guix/gexp.scm @@ -438,6 +438,14 @@ This is the declarative counterpart of 'gexp->file'." (base file-append-base) ;<package> | <derivation> | ... (suffix file-append-suffix)) ;list of strings +(define (write-file-append file port) + (match file + (($ <file-append> base suffix) + (format port "#<file-append ~s ~s>" base + (string-join suffix))))) + +(set-record-type-printer! <file-append> write-file-append) + (define (file-append base . suffix) "Return a <file-append> object that expands to the concatenation of BASE and SUFFIX." |