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store: Clarify documentation of 'valid-path?'.

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* guix/store.scm (valid-path?): Improve docstring.
* doc/guix.texi (The Store): Update accordingly.
This commit is contained in:
Ludovic Courtès 2016-02-25 12:12:50 +01:00
parent 0043558082
commit 06b76acceb
2 changed files with 14 additions and 2 deletions
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9
doc/guix.texi
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@ -2913,7 +2913,14 @@ Procedures that make RPCs all take a server object as their first
argument.
@deffn {Scheme Procedure} valid-path? @var{server} @var{path}
Return @code{#t} when @var{path} is a valid store path.
@cindex invalid store items
Return @code{#t} when @var{path} designates a valid store item and
@code{#f} otherwise (an invalid item may exist on disk but still be
invalid, for instance because it is the result of an aborted or failed
build.)
A @code{&nix-protocol-error} condition is raised if @var{path} is not
prefixed by the store directory (@file{/gnu/store}).
@end deffn
@deffn {Scheme Procedure} add-text-to-store @var{server} @var{name} @var{text} [@var{references}]

7
guix/store.scm
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@ -582,7 +582,12 @@ (define name
(operation (name args ...) docstring return ...)))
(define-operation (valid-path? (string path))
"Return #t when PATH is a valid store path."
"Return #t when PATH designates a valid store item and #f otherwise (an
invalid item may exist on disk but still be invalid, for instance because it
is the result of an aborted or failed build.)
A '&nix-protocol-error' condition is raised if PATH is not prefixed by the
store directory (/gnu/store)."
boolean)
(define-operation (query-path-hash (store-path path))