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authorLudovic Courtès <ludo@gnu.org>2014-12-27 22:55:34 +0100
committerLudovic Courtès <ludo@gnu.org>2014-12-27 23:22:55 +0100
commit7ec02d374d1fa8a8f4034a996485872fd2aa7b73 (patch)
treea4e02e2b268530da692d3a9e94333eb4d8583e57 /guix/build
parentaf07095516b56dcdd38bf1874da27de9c4c841f6 (diff)
build-support/gnu: Add support for file patterns in search paths.
* guix/build/utils.scm (search-path-as-list): Add #:pattern parameter and honor it. (set-path-environment-variable): Likewise, and pass it to 'search-path-as-list'. * guix/packages.scm (search-path-specification->sexp): Add PATTERN slot. * guix/build/gnu-build-system.scm (set-paths): Adjust accordingly.
Diffstat (limited to 'guix/build')
-rw-r--r--guix/build/gnu-build-system.scm10
-rw-r--r--guix/build/utils.scm40
2 files changed, 38 insertions, 12 deletions
diff --git a/guix/build/gnu-build-system.scm b/guix/build/gnu-build-system.scm
index d661736831..11b43c521f 100644
--- a/guix/build/gnu-build-system.scm
+++ b/guix/build/gnu-build-system.scm
@@ -73,21 +73,23 @@
input-directories)))
(for-each (match-lambda
- ((env-var (files ...) separator type)
+ ((env-var (files ...) separator type pattern)
(set-path-environment-variable env-var files
input-directories
#:separator separator
- #:type type)))
+ #:type type
+ #:pattern pattern)))
search-paths)
(when native-search-paths
;; Search paths for native inputs, when cross building.
(for-each (match-lambda
- ((env-var (files ...) separator type)
+ ((env-var (files ...) separator type pattern)
(set-path-environment-variable env-var files
native-input-directories
#:separator separator
- #:type type)))
+ #:type type
+ #:pattern pattern)))
native-search-paths))
#t)
diff --git a/guix/build/utils.scm b/guix/build/utils.scm
index f22b2c3cb7..47bcb3e8a1 100644
--- a/guix/build/utils.scm
+++ b/guix/build/utils.scm
@@ -291,7 +291,7 @@ matches REGEXP."
;;;
(define* (search-path-as-list files input-dirs
- #:key (type 'directory))
+ #:key (type 'directory) pattern)
"Return the list of directories among FILES of the given TYPE (a symbol as
returned by 'stat:type') that exist in INPUT-DIRS. Example:
@@ -300,13 +300,26 @@ returned by 'stat:type') that exist in INPUT-DIRS. Example:
=> (\"/package1/share/emacs/site-lisp\"
\"/package3/share/emacs/site-lisp\")
+When PATTERN is true, it is a regular expression denoting file names to look
+for under the directories designated by FILES. For example:
+
+ (search-path-as-list '(\"xml\") (list docbook-xml docbook-xsl)
+ #:type 'regular
+ #:pattern \"^catalog\\\\.xml$\")
+ => (\"/…/xml/dtd/docbook/catalog.xml\"
+ \"/…/xml/xsl/docbook-xsl-1.78.1/catalog.xml\")
"
(append-map (lambda (input)
- (filter-map (lambda (file)
- (let* ((file (string-append input "/" file))
- (stat (stat file #f)))
- (and stat (eq? type (stat:type stat))
- file)))
+ (append-map (lambda (file)
+ (let ((file (string-append input "/" file)))
+ ;; XXX: By using 'find-files', we implicitly
+ ;; assume #:type 'regular.
+ (if pattern
+ (find-files file pattern)
+ (let ((stat (stat file #f)))
+ (if (and stat (eq? type (stat:type stat)))
+ (list file)
+ '())))))
files))
input-dirs))
@@ -319,7 +332,8 @@ returned by 'stat:type') that exist in INPUT-DIRS. Example:
(define* (set-path-environment-variable env-var files input-dirs
#:key
(separator ":")
- (type 'directory))
+ (type 'directory)
+ pattern)
"Look for each of FILES of the given TYPE (a symbol as returned by
'stat:type') in INPUT-DIRS. Set ENV-VAR to a SEPARATOR-separated path
accordingly. Example:
@@ -327,9 +341,19 @@ accordingly. Example:
(set-path-environment-variable \"PKG_CONFIG\"
'(\"lib/pkgconfig\")
(list package1 package2))
+
+When PATTERN is not #f, it must be a regular expression (really a string)
+denoting file names to look for under the directories designated by FILES:
+
+ (set-path-environment-variable \"XML_CATALOG_FILES\"
+ '(\"xml\")
+ (list docbook-xml docbook-xsl)
+ #:type 'regular
+ #:pattern \"^catalog\\\\.xml$\")
"
(let* ((path (search-path-as-list files input-dirs
- #:type type))
+ #:type type
+ #:pattern pattern))
(value (list->search-path-as-string path separator)))
(if (string-null? value)
(begin