diff options
Diffstat (limited to 'guix/nar.scm')
| -rw-r--r-- | guix/nar.scm | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/guix/nar.scm b/guix/nar.scm index 9ae76ff2a9..29b57dc989 100644 --- a/guix/nar.scm +++ b/guix/nar.scm @@ -161,6 +161,11 @@ sub-directories of FILE as needed." (dump f) (write-string ")" p))) entries))) + ((symlink) + (write-string "type" p) + (write-string "symlink" p) + (write-string "target" p) + (write-string (readlink f) p)) (else (raise (condition (&message (message "ENOSYS")) (&nar-error))))) @@ -178,14 +183,26 @@ Restore it as FILE." (file #f)))))) (let restore ((file file)) + (define (read-eof-marker) + (match (read-string port) + (")" #t) + (x (raise + (condition + (&message (message "invalid nar end-of-file marker")) + (&nar-read-error (port port) (file file) (token x))))))) + (match (list (read-string port) (read-string port) (read-string port)) (("(" "type" "regular") (call-with-output-file file (cut read-contents port <>)) - (match (read-string port) - (")" #t) + (read-eof-marker)) + (("(" "type" "symlink") + (match (list (read-string port) (read-string port)) + (("target" target) + (symlink target file) + (read-eof-marker)) (x (raise (condition - (&message (message "invalid nar end-of-file marker")) + (&message (message "invalid symlink tokens")) (&nar-read-error (port port) (file file) (token x))))))) (("(" "type" "directory") (let ((dir file)) |