diff options
| -rw-r--r-- | guix/scripts.scm | 65 |
1 files changed, 51 insertions, 14 deletions
diff --git a/guix/scripts.scm b/guix/scripts.scm index 77cbf12350..7ad1d5194c 100644 --- a/guix/scripts.scm +++ b/guix/scripts.scm @@ -181,32 +181,69 @@ Show what and how will/would be built." (newline (guix-warning-port)))) (define %disk-space-warning - ;; The fraction (between 0 and 1) of free disk space below which a warning - ;; is emitted. - (make-parameter (match (and=> (getenv "GUIX_DISK_SPACE_WARNING") - string->number) - (#f .05) ;5% - (threshold (/ threshold 100.))))) + ;; Return a pair of absolute threshold (number of bytes) and relative + ;; threshold (fraction between 0 and 1) for the free disk space below which + ;; a warning is emitted. + ;; GUIX_DISK_SPACE_WARNING can contain both thresholds. A value in [0;100) + ;; is a relative threshold, otherwise it's absolute. The following + ;; example values are valid: + ;; - 1GiB;10% ;1 GiB absolute, and 10% relative. + ;; - 15G ;15 GiB absolute, and default relative. + ;; - 99% ;99% relative, and default absolute. + ;; - 99 ;Same. + ;; - 100 ;100 absolute, and default relative. + (let* ((default-absolute-threshold (size->number "5GiB")) + (default-relative-threshold 0.05) + (percentage->float (lambda (percentage) + (or (and=> (string->number + (car (string-split percentage #\%))) + (lambda (n) (/ n 100.0))) + default-relative-threshold))) + (size->number* (lambda (size) + (or (false-if-exception (size->number size)) + default-absolute-threshold))) + (absolute? (lambda (size) + (not (or (string-suffix? "%" size) + (false-if-exception (< (size->number size) 100))))))) + (make-parameter + (match (getenv "GUIX_DISK_SPACE_WARNING") + (#f (list default-absolute-threshold + default-relative-threshold)) + (env-string (match (string-split env-string #\;) + ((threshold) + (if (absolute? threshold) + (list (size->number* threshold) + default-relative-threshold) + (list default-absolute-threshold + (percentage->float threshold)))) + ((threshold1 threshold2) + (if (absolute? threshold1) + (list (size->number* threshold1) + (percentage->float threshold2)) + (list (size->number* threshold2) + (percentage->float threshold1)))))))))) (define* (warn-about-disk-space #:optional profile #:key - (threshold (%disk-space-warning))) + (thresholds (%disk-space-warning))) "Display a hint about 'guix gc' if less than THRESHOLD of /gnu/store is -available." +available. +THRESHOLD is a pair of (ABSOLUTE-THRESHOLD RELATIVE-THRESHOLD)." (let* ((stats (statfs (%store-prefix))) (block-size (file-system-block-size stats)) (available (* block-size (file-system-blocks-available stats))) (total (* block-size (file-system-block-count stats))) - (ratio (/ available total 1.))) - (when (< ratio threshold) - (warning (G_ "only ~,1f% of free space available on ~a~%") - (* ratio 100) (%store-prefix)) + (relative-threshold-in-bytes (* total (cadr thresholds))) + (absolute-threshold-in-bytes (* 1024 1024 1024 (car thresholds)))) + (when (< available (min relative-threshold-in-bytes + absolute-threshold-in-bytes)) + (warning (G_ "only ~,1f GiB of free space available on ~a~%") + available (%store-prefix)) (display-hint (format #f (G_ "Consider deleting old profile generations and collecting garbage, along these lines: @example guix gc --delete-generations=1m -@end example\n") - profile))))) +@end example\n")))))) ;;; scripts.scm ends here |