diff options
| -rw-r--r-- | doc/guix.texi | 7 | ||||
| -rw-r--r-- | guix/gexp.scm | 20 | ||||
| -rw-r--r-- | tests/gexp.scm | 18 |
3 files changed, 37 insertions, 8 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index f85221d065..227d861482 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -3804,7 +3804,7 @@ does not have any effect on what the G-expression does. content is directly passed as a string. @deffn {Scheme Procedure} local-file @var{file} [@var{name}] @ - [#:recursive? #f] + [#:recursive? #f] [#:select? (const #t)] Return an object representing local file @var{file} to add to the store; this object can be used in a gexp. If @var{file} is a relative file name, it is looked up relative to the source file where this form appears. @var{file} will be added to @@ -3814,6 +3814,11 @@ When @var{recursive?} is true, the contents of @var{file} are added recursively; designates a flat file and @var{recursive?} is true, its contents are added, and its permission bits are kept. +When @var{recursive?} is true, call @code{(@var{select?} @var{file} +@var{stat})} for each directory entry, where @var{file} is the entry's +absolute file name and @var{stat} is the result of @code{lstat}; exclude +entries for which @var{select?} does not return true. + This is the declarative counterpart of the @code{interned-file} monadic procedure (@pxref{The Store Monad, @code{interned-file}}). @end deffn diff --git a/guix/gexp.scm b/guix/gexp.scm index 8e604ff7cf..2bf1013b3c 100644 --- a/guix/gexp.scm +++ b/guix/gexp.scm @@ -189,18 +189,21 @@ cross-compiling.)" ;; absolute file name. We keep it in a promise to compute it lazily and avoid ;; repeated 'stat' calls. (define-record-type <local-file> - (%%local-file file absolute name recursive?) + (%%local-file file absolute name recursive? select?) local-file? (file local-file-file) ;string (absolute %local-file-absolute-file-name) ;promise string (name local-file-name) ;string - (recursive? local-file-recursive?)) ;Boolean + (recursive? local-file-recursive?) ;Boolean + (select? local-file-select?)) ;string stat -> Boolean + +(define (true file stat) #t) (define* (%local-file file promise #:optional (name (basename file)) - #:key recursive?) + #:key recursive? (select? true)) ;; This intermediate procedure is part of our ABI, but the underlying ;; %%LOCAL-FILE is not. - (%%local-file file promise name recursive?)) + (%%local-file file promise name recursive? select?)) (define (absolute-file-name file directory) "Return the canonical absolute file name for FILE, which lives in the @@ -222,6 +225,10 @@ When RECURSIVE? is true, the contents of FILE are added recursively; if FILE designates a flat file and RECURSIVE? is true, its contents are added, and its permission bits are kept. +When RECURSIVE? is true, call (SELECT? FILE STAT) for each directory entry, +where FILE is the entry's absolute file name and STAT is the result of +'lstat'; exclude entries for which SELECT? does not return true. + This is the declarative counterpart of the 'interned-file' monadic procedure." (%local-file file (delay (absolute-file-name file (current-source-directory))) @@ -235,12 +242,13 @@ This is the declarative counterpart of the 'interned-file' monadic procedure." (define-gexp-compiler (local-file-compiler (file local-file?) system target) ;; "Compile" FILE by adding it to the store. (match file - (($ <local-file> file (= force absolute) name recursive?) + (($ <local-file> file (= force absolute) name recursive? select?) ;; Canonicalize FILE so that if it's a symlink, it is resolved. Failing ;; to do that, when RECURSIVE? is #t, we could end up creating a dangling ;; symlink in the store, and when RECURSIVE? is #f 'add-to-store' would ;; just throw an error, both of which are inconvenient. - (interned-file absolute name #:recursive? recursive?)))) + (interned-file absolute name + #:recursive? recursive? #:select? select?)))) (define-record-type <plain-file> (%plain-file name content references) diff --git a/tests/gexp.scm b/tests/gexp.scm index db0ffd2fdd..f504b92d84 100644 --- a/tests/gexp.scm +++ b/tests/gexp.scm @@ -33,7 +33,8 @@ #:use-module (rnrs io ports) #:use-module (ice-9 match) #:use-module (ice-9 regex) - #:use-module (ice-9 popen)) + #:use-module (ice-9 popen) + #:use-module (ice-9 ftw)) ;; Test the (guix gexp) module. @@ -132,6 +133,21 @@ (lambda () (false-if-exception (delete-file link)))))) +(test-assertm "local-file, #:select?" + (mlet* %store-monad ((select? -> (lambda (file stat) + (member (basename file) + '("guix.scm" "tests" + "gexp.scm")))) + (file -> (local-file ".." "directory" + #:recursive? #t + #:select? select?)) + (dir (lower-object file))) + (return (and (store-path? dir) + (equal? (scandir dir) + '("." ".." "guix.scm" "tests")) + (equal? (scandir (string-append dir "/tests")) + '("." ".." "gexp.scm")))))) + (test-assert "one plain file" (let* ((file (plain-file "hi" "Hello, world!")) (exp (gexp (display (ungexp file)))) |