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profiles: 'manual-database' hook reports progress. 

* guix/profiles.scm (manual-database)[build](compute-entries): Write a
progress report.
This commit is contained in:
Ludovic Courtès 2019-02-01 19:25:38 +01:00
parent 35ef5bc866
commit f6fe7da372
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1 changed files with 18 additions and 7 deletions
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25
guix/profiles.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
;;; Copyright © 2014, 2016 Alex Kost <alezost@gmail.com>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
@ -1300,12 +1300,22 @@ the entries in MANIFEST."
(srfi srfi-19))
(define (compute-entries)
(append-map (lambda (directory)
(let ((man (string-append directory "/share/man")))
(if (directory-exists? man)
(mandb-entries man)
'())))
'#$(manifest-inputs manifest)))
;; This is the most expensive part (I/O and CPU, due to
;; decompression), so report progress as we traverse INPUTS.
(let* ((inputs '#$(manifest-inputs manifest))
(total (length inputs)))
(append-map (lambda (directory count)
(format #t "\r[~3d/~3d] building list of \
man-db entries..."
count total)
(force-output)
(let ((man (string-append directory
"/share/man")))
(if (directory-exists? man)
(mandb-entries man)
'())))
inputs
(iota total 1))))
(define man-directory
(string-append #$output "/share/man"))
@ -1320,6 +1330,7 @@ the entries in MANIFEST."
"/index.db")
entries))
(duration (time-difference (current-time) start)))
(newline)
(format #t "~a entries processed in ~,1f s~%"
(length entries)
(+ (time-second duration)