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| author | Ludovic Courtès <ludo@gnu.org> | 2015-01-05 22:31:34 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2015-03-23 22:28:49 +0100 |
| commit | 0561e9ae16c2894d19432f1c6eb8e99ad508dc47 (patch) | |
| tree | 180898a0367e9855312e89146b2821dabd0c26f5 | |
| parent | 87db65507e0385c139593ffb6749ffe1e85fa82b (diff) | |
| download | gnu-guix-0561e9ae16c2894d19432f1c6eb8e99ad508dc47.tar gnu-guix-0561e9ae16c2894d19432f1c6eb8e99ad508dc47.tar.gz | |
substitute-binary: Allow callers to specify the size of a narinfo.
* guix/scripts/substitute-binary.scm (read-narinfo): Add #:size
parameter and honor it.
| -rwxr-xr-x | guix/scripts/substitute-binary.scm | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/guix/scripts/substitute-binary.scm b/guix/scripts/substitute-binary.scm index a4d153d4a0..85c2c74520 100755 --- a/guix/scripts/substitute-binary.scm +++ b/guix/scripts/substitute-binary.scm @@ -309,12 +309,16 @@ NARINFO, doesn't match HASH, a bytevector containing the hash of NARINFO." (corrupt-signature (leave (_ "signature on '~a' is corrupt~%") uri))))) -(define* (read-narinfo port #:optional url) +(define* (read-narinfo port #:optional url + #:key size) "Read a narinfo from PORT. If URL is true, it must be a string used to -build full URIs from relative URIs found while reading PORT. +build full URIs from relative URIs found while reading PORT. When SIZE is +true, read at most SIZE bytes from PORT; otherwise, read as much as possible. No authentication and authorization checks are performed here!" - (let ((str (utf8->string (get-bytevector-all port)))) + (let ((str (utf8->string (if size + (get-bytevector-n port size) + (get-bytevector-all port))))) (alist->record (call-with-input-string str fields->alist) (narinfo-maker str url) '("StorePath" "URL" "Compression" |