factor/extra/bootstrap/image/download/download.factor

33 lines
881 B
Factor

! Copyright (C) 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
IN: bootstrap.image.download
USING: http.client checksums checksums.openssl splitting assocs
kernel io.files bootstrap.image sequences io ;
: url "http://factorcode.org/images/latest/" ;
: download-checksums ( -- alist )
url "checksums.txt" append http-get
string-lines [ " " split1 ] { } map>assoc ;
: need-new-image? ( image -- ? )
dup exists?
[
[ openssl-md5 checksum-file hex-string ]
[ download-checksums at ]
bi = not
] [ drop t ] if ;
: download-image ( arch -- )
boot-image-name dup need-new-image? [
"Downloading " write dup write "..." print
url prepend download
] [
"Boot image up to date" print
drop
] if ;
: download-my-image ( -- ) my-arch download-image ;
MAIN: download-my-image