diff options
Diffstat (limited to 'guix/scripts/weather.scm')
| -rw-r--r-- | guix/scripts/weather.scm | 174 |
1 files changed, 171 insertions, 3 deletions
diff --git a/guix/scripts/weather.scm b/guix/scripts/weather.scm index 98b7338fb9..4b12f9550e 100644 --- a/guix/scripts/weather.scm +++ b/guix/scripts/weather.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2017, 2018 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net> ;;; Copyright © 2018 Kyle Meyer <kyle@kyleam.com> ;;; @@ -32,6 +32,9 @@ #:use-module (guix scripts substitute) #:use-module (guix http-client) #:use-module (guix ci) + #:use-module (guix sets) + #:use-module (guix graph) + #:autoload (guix scripts graph) (%bag-node-type) #:use-module (gnu packages) #:use-module (web uri) #:use-module (srfi srfi-1) @@ -41,6 +44,7 @@ #:use-module (srfi srfi-37) #:use-module (ice-9 match) #:use-module (ice-9 format) + #:use-module (ice-9 vlist) #:export (guix-weather)) (define (all-packages) @@ -51,7 +55,10 @@ (cons* replacement package result)) (#f (cons package result)))) - '())) + '() + + ;; Dismiss deprecated packages but keep hidden packages. + #:select? (negate package-superseded))) (define (call-with-progress-reporter reporter proc) "This is a variant of 'call-with-progress-reporter' that works with monadic @@ -254,6 +261,10 @@ Report the availability of substitutes.\n")) -m, --manifest=MANIFEST look up substitutes for packages specified in MANIFEST")) (display (G_ " + -c, --coverage[=COUNT] + show substitute coverage for packages with at least + COUNT dependents")) + (display (G_ " -s, --system=SYSTEM consider substitutes for SYSTEM--e.g., \"i686-linux\"")) (newline) (display (G_ " @@ -286,6 +297,11 @@ Report the availability of substitutes.\n")) (option '(#\m "manifest") #t #f (lambda (opt name arg result) (alist-cons 'manifest arg result))) + (option '(#\c "coverage") #f #t + (lambda (opt name arg result) + (alist-cons 'coverage + (if arg (string->number* arg) 0) + result))) (option '(#\s "system") #t #f (lambda (opt name arg result) (alist-cons 'system arg result))))) @@ -302,6 +318,153 @@ Report the availability of substitutes.\n")) ;;; +;;; Missing package substitutes. +;;; + +(define* (package-partition-boundary pred packages + #:key (system (%current-system))) + "Return the subset of PACKAGES that are at the \"boundary\" between those +that match PRED and those that don't. The returned packages themselves do not +match PRED but they have at least one direct dependency that does. + +Note: The assumption is that, if P matches PRED, then all the dependencies of +P match PRED as well." + ;; XXX: Graph theoreticians surely have something to teach us about this... + (let loop ((packages packages) + (result (setq)) + (visited vlist-null)) + (define (visited? package) + (vhash-assq package visited)) + + (match packages + ((package . rest) + (cond ((visited? package) + (loop rest result visited)) + ((pred package) + (loop rest result (vhash-consq package #t visited))) + (else + (let* ((bag (package->bag package system)) + (deps (filter-map (match-lambda + ((label (? package? package) . _) + (and (not (pred package)) + package)) + (_ #f)) + (bag-direct-inputs bag)))) + (loop (append deps rest) + (if (null? deps) + (set-insert package result) + result) + (vhash-consq package #t visited)))))) + (() + (set->list result))))) + +(define (package->output-mapping packages system) + "Return a vhash that maps each item of PACKAGES to its corresponding output +store file names for SYSTEM." + (foldm %store-monad + (lambda (package mapping) + (mlet %store-monad ((drv (package->derivation package system + #:graft? #f))) + (return (vhash-consq package + (match (derivation->output-paths drv) + (((names . outputs) ...) + outputs)) + mapping)))) + vlist-null + packages)) + +(define (substitute-oracle server items) + "Return a procedure that, when passed a store item (one of those listed in +ITEMS), returns true if SERVER has a substitute for it, false otherwise." + (define available + (fold (lambda (narinfo set) + (set-insert (narinfo-path narinfo) set)) + (set) + (lookup-narinfos server items))) + + (cut set-contains? available <>)) + +(define* (report-package-coverage-per-system server packages system + #:key (threshold 0)) + "Report on the subset of PACKAGES that lacks SYSTEM substitutes on SERVER, +sorted by decreasing number of dependents. Do not display those with less +than THRESHOLD dependents." + (mlet* %store-monad ((packages -> (package-closure packages #:system system)) + (mapping (package->output-mapping packages system)) + (back-edges (node-back-edges %bag-node-type packages))) + (define items + (vhash-fold (lambda (package items result) + (append items result)) + '() + mapping)) + + (define substitutable? + (substitute-oracle server items)) + + (define substitutable-package? + (lambda (package) + (match (vhash-assq package mapping) + ((_ . items) + (find substitutable? items)) + (#f + #f)))) + + (define missing + (package-partition-boundary substitutable-package? packages + #:system system)) + + (define missing-count + (length missing)) + + (if (zero? threshold) + (format #t (N_ "The following ~a package is missing from '~a' for \ +'~a':~%" + "The following ~a packages are missing from '~a' for \ +'~a':~%" + missing-count) + missing-count server system) + (format #t (N_ "~a package is missing from '~a' for '~a':~%" + "~a packages are missing from '~a' for '~a', among \ +which:~%" + missing-count) + missing-count server system)) + + (for-each (match-lambda + ((package count) + (match (vhash-assq package mapping) + ((_ . items) + (when (>= count threshold) + (format #t " ~4d\t~a@~a\t~{~a ~}~%" + count + (package-name package) (package-version package) + items))) + (#f ;PACKAGE must be an internal thing + #f)))) + (sort (zip missing + (map (lambda (package) + (node-reachable-count (list package) + back-edges)) + missing)) + (match-lambda* + (((_ count1) (_ count2)) + (< count2 count1))))) + (return #t))) + +(define* (report-package-coverage server packages systems + #:key (threshold 0)) + "Report on the substitute coverage for PACKAGES, for each of SYSTEMS, on +SERVER. Display information for packages with at least THRESHOLD dependents." + (with-store store + (run-with-store store + (foldm %store-monad + (lambda (system _) + (report-package-coverage-per-system server packages system + #:threshold threshold)) + #f + systems)))) + + +;;; ;;; Entry point. ;;; @@ -331,7 +494,12 @@ Report the availability of substitutes.\n")) (package-outputs packages system)) systems))))))) (for-each (lambda (server) - (report-server-coverage server items)) + (report-server-coverage server items) + (match (assoc-ref opts 'coverage) + (#f #f) + (threshold + (report-package-coverage server packages systems + #:threshold threshold)))) urls))))) ;;; Local Variables: |