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authorLudovic Courtès <ludo@gnu.org>2014-09-03 15:13:44 +0200
committerLudovic Courtès <ludo@gnu.org>2014-09-03 15:43:07 +0200
commitfbb3555809966ee2dacfe16451fba0b963d1cdc0 (patch)
tree771d779b73ba4637fed5401fdb02284c9de9f998 /gnu/system/linux-initrd.scm
parente2f4b305d0b7cff1e19c7f67ea633ef8a971e712 (diff)
downloadguix-fbb3555809966ee2dacfe16451fba0b963d1cdc0.tar
guix-fbb3555809966ee2dacfe16451fba0b963d1cdc0.tar.gz
linux-initrd: Factorize cpio archive creation.
* gnu/build/linux-initrd.scm: New file. * gnu-system.am (GNU_SYSTEM_MODULES): Add it. * gnu/system/linux-initrd.scm (expression->initrd): Use (gnu build linux-initrd) and 'write-cpio-archive' instead of the inlined code.
Diffstat (limited to 'gnu/system/linux-initrd.scm')
-rw-r--r--gnu/system/linux-initrd.scm45
1 files changed, 9 insertions, 36 deletions
diff --git a/gnu/system/linux-initrd.scm b/gnu/system/linux-initrd.scm
index c4ab73ec9a..bdee28c961 100644
--- a/gnu/system/linux-initrd.scm
+++ b/gnu/system/linux-initrd.scm
@@ -75,9 +75,10 @@ initrd."
(mlet* %store-monad ((source (imported-modules modules))
(compiled (compiled-modules modules)))
(define builder
- ;; TODO: Move most of this code to (gnu build linux-boot).
+ ;; TODO: Move most of this code to (gnu build linux-initrd).
#~(begin
- (use-modules (guix build utils)
+ (use-modules (gnu build linux-initrd)
+ (guix build utils)
(ice-9 pretty-print)
(ice-9 popen)
(ice-9 match)
@@ -87,9 +88,7 @@ initrd."
(rnrs bytevectors)
((system foreign) #:select (sizeof)))
- (let ((cpio (string-append #$cpio "/bin/cpio"))
- (gzip (string-append #$gzip "/bin/gzip"))
- (modules #$source)
+ (let ((modules #$source)
(gos #$compiled)
(scm-dir (string-append "share/guile/" (effective-version)))
(go-dir (format #f ".cache/guile/ccache/~a-~a-~a-~a"
@@ -162,39 +161,13 @@ initrd."
(for-each (cut utime <> 0 0 0 0)
(find-files "." ".*"))
- (system* cpio "--version")
- (let ((pipe (open-pipe* OPEN_WRITE cpio "-o"
- "-O" (string-append #$output "/initrd")
- "-H" "newc" "--null")))
- (define print0
- (let ((len (string-length "./")))
- (lambda (file)
- (format pipe "~a\0" (string-drop file len)))))
-
- ;; Note: as per `ramfs-rootfs-initramfs.txt', always add
- ;; directory entries before the files that are inside of it: "The
- ;; Linux kernel cpio extractor won't create files in a directory
- ;; that doesn't exist, so the directory entries must go before
- ;; the files that go in those directories."
- (file-system-fold (const #t)
- (lambda (file stat result) ; leaf
- (print0 file))
- (lambda (dir stat result) ; down
- (unless (string=? dir ".")
- (print0 dir)))
- (const #f) ; up
- (const #f) ; skip
- (const #f)
- #f
- ".")
-
- (and (zero? (close-pipe pipe))
- (with-directory-excursion #$output
- (and (zero? (system* gzip "--best" "initrd"))
- (rename-file "initrd.gz" "initrd")))))))))
+ (write-cpio-archive (string-append #$output "/initrd") "."
+ #:cpio (string-append #$cpio "/bin/cpio")
+ #:gzip (string-append #$gzip "/bin/gzip"))))))
(gexp->derivation name builder
- #:modules '((guix build utils)))))
+ #:modules '((guix build utils)
+ (gnu build linux-initrd)))))
(define (file-system->spec fs)
"Return a list corresponding to file-system FS that can be passed to the