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pull: Speed up the new/upgraded package computation. 

* guix/scripts/pull.scm (new/upgraded-packages): OLD no longer stores
all the versions of each package.  Remove 'vhash-fold*' call and reduce
the number of 'version>?' calls when computing UPGRADED.
master
Ludovic Courtès 2019-02-12 22:51:23 +01:00
parent cf0eacceb4
commit 201253674b
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GPG Key ID: 090B11993D9AEBB5
1 changed files with 11 additions and 6 deletions
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17
guix/scripts/pull.scm
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@ -353,7 +353,13 @@ pairs, and return two values: the list of packages new in ALIST2, and the list
of packages upgraded in ALIST2."
(let* ((old (fold (match-lambda*
(((name . version) table)
(vhash-cons name version table)))
(match (vhash-assoc name table)
(#f
(vhash-cons name version table))
((_ . previous-version)
(if (version>? version previous-version)
(vhash-cons name version table)
table)))))
vlist-null
alist1))
(new (remove (match-lambda
@ -362,11 +368,10 @@ of packages upgraded in ALIST2."
alist2))
(upgraded (filter-map (match-lambda
((name . new-version)
(match (vhash-fold* cons '() name old)
(() #f)
((= (cut sort <> version>?) old-versions)
(and (version>? new-version
(first old-versions))
(match (vhash-assoc name old)
(#f #f)
((_ . old-version)
(and (version>? new-version old-version)
(string-append name "@"
new-version))))))
alist2)))