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| author | Ludovic Courtès <ludo@gnu.org> | 2017-06-30 00:04:38 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2017-06-30 00:16:50 +0200 |
| commit | a8ac4f081a9a679498ea42ccfe001f218bba3043 (patch) | |
| tree | 7c5d85cc5d3d52ecb1c482bfde52c4755b48a8bb /gnu/build | |
| parent | a2cf57e79e0c1ca59ff854c12ece178a73fe224d (diff) | |
vm: Estimate the disk size by default.
* gnu/build/vm.scm (estimated-partition-size): New procedure.
* gnu/system/vm.scm (expression->derivation-in-linux-vm):
Change #:disk-image-size default to 'guess.
[builder]: When DISK-IMAGE-SIZE is 'guess, use
'estimated-partition-size' and compute and estimate of the image size.
(qemu-image): Likewise.
* guix/build/store-copy.scm (file-size, closure-size): New procedures.
* guix/scripts/system.scm (%default-options): Change 'image-size' to
'guess.
* doc/guix.texi (Building the Installation Image): Remove '--image-size'
flag from example.
(Invoking guix system): Document the image size estimate.
Diffstat (limited to 'gnu/build')
| -rw-r--r-- | gnu/build/vm.scm | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm index 7d5e613956..d0bc8c3033 100644 --- a/gnu/build/vm.scm +++ b/gnu/build/vm.scm @@ -46,6 +46,7 @@ partition-flags partition-initializer + estimated-partition-size root-partition-initializer initialize-partition-table initialize-hard-disk)) @@ -150,6 +151,12 @@ the #:references-graphs parameter of 'derivation'." (flags partition-flags (default '())) (initializer partition-initializer (default (const #t)))) +(define (estimated-partition-size graphs) + "Return the estimated size of a partition that can store the store items +given by GRAPHS, a list of file names produced by #:references-graphs." + ;; Simply add a 20% overhead. + (round (* 1.2 (closure-size graphs)))) + (define (fold2 proc seed1 seed2 lst) ;TODO: factorize "Like `fold', but with a single list and two seeds." (let loop ((result1 seed1) |