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author | Ludovic Courtès <ludo@gnu.org> | 2014-09-03 15:13:44 +0200 |
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committer | Ludovic Courtès <ludo@gnu.org> | 2014-09-03 15:43:07 +0200 |
commit | fbb3555809966ee2dacfe16451fba0b963d1cdc0 (patch) | |
tree | 771d779b73ba4637fed5401fdb02284c9de9f998 /gnu/system | |
parent | e2f4b305d0b7cff1e19c7f67ea633ef8a971e712 (diff) | |
download | guix-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')
-rw-r--r-- | gnu/system/linux-initrd.scm | 45 |
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 |