From 0a90af153199b03deced53da7ef7f50f0e561f80 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Thu, 24 Jul 2014 22:27:35 +0200 Subject: monads: Add 'interned-file'. * guix/monads.scm (interned-file): New procedure. * tests/monads.scm ("interned-file"): New test. * doc/guix.texi (The Store Monad): Document it. --- doc/guix.texi | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'doc') diff --git a/doc/guix.texi b/doc/guix.texi index 2f44ce9506..c504a5d0ba 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -2012,6 +2012,29 @@ will references @var{coreutils}, @var{grep}, and @var{sed}, thereby preventing them from being garbage-collected during its lifetime. @end deffn +@deffn {Monadic Procedure} interned-file @var{file} [@var{name}] @ + [#:recursive? #t] +Return the name of @var{file} once interned in the store. Use +@var{name} as its store name, or the basename of @var{file} if +@var{name} is omitted. + +When @var{recursive?} is true, the contents of @var{file} are added +recursively; if @var{file} designates a flat file and @var{recursive?} +is true, its contents are added, and its permission bits are kept. + +The example below adds a file to the store, under two different names: + +@example +(run-with-store (open-connection) + (mlet %store-monad ((a (interned-file "README")) + (b (interned-file "README" "LEGU-MIN"))) + (return (list a b)))) + +@result{} ("/gnu/store/rwm@dots{}-README" "/gnu/store/44i@dots{}-LEGU-MIN") +@end example + +@end deffn + @deffn {Monadic Procedure} package-file @var{package} [@var{file}] @ [#:system (%current-system)] [#:output "out"] Return as a monadic value in the absolute file name of @var{file} within the @var{output} -- cgit 1.4.1