diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cuirass/base.scm | 82 |
1 files changed, 28 insertions, 54 deletions
diff --git a/src/cuirass/base.scm b/src/cuirass/base.scm index a96f640..c9c5ec1 100644 --- a/src/cuirass/base.scm +++ b/src/cuirass/base.scm @@ -362,15 +362,10 @@ Essentially this procedure inverts the inversion-of-control that ;;; Building packages. ;;; -(define (shuffle-jobs jobs) - "Shuffle JOBS, a list of job alists." +(define (shuffle-derivations drv) + "Shuffle DRV, a list of derivation file names." ;; Our shuffling algorithm is simple: we sort by .drv file name. :-) - (define (job<? job1 job2) - (let ((drv1 (assq-ref job1 #:derivation)) - (drv2 (assq-ref job2 #:derivation))) - (string<? drv1 drv2))) - - (sort jobs job<?)) + (sort drv string<?)) (define (update-build-statuses! store db lst) "Update the build status of the derivations listed in LST, which have just @@ -397,11 +392,10 @@ and returns the values RESULTS." (print-exception (current-error-port) frame key args) (apply values results))))) -(define* (spawn-builds store db jobs +(define* (spawn-builds store db drv #:key (max-batch-size 200)) - "Build the derivations associated with JOBS, a list of job alists, updating -DB as builds complete. Derivations are submitted in batches of at most -MAX-BATCH-SIZE items." + "Build the derivations listed in DRV, updating DB as builds complete. +Derivations are submitted in batches of at most MAX-BATCH-SIZE items." ;; XXX: We want to pass 'build-derivations' as many derivations at once so ;; we benefit from as much parallelism as possible (we must be using ;; #:keep-going? #t). @@ -419,31 +413,27 @@ MAX-BATCH-SIZE items." ;; This code works around it by submitting derivations in batches of at most ;; MAX-BATCH-SIZE. - (define total (length jobs)) + (define total (length drv)) (log-message "building ~a derivations in batches of ~a" total max-batch-size) - ;; Shuffle jobs so that we don't build sequentially i686/x86_64/aarch64, + ;; Shuffle DRV so that we don't build sequentially i686/x86_64/aarch64, ;; master/core-updates, etc., which would be suboptimal. - (let loop ((jobs (shuffle-jobs jobs)) + (let loop ((drv (shuffle-derivations drv)) (count total)) (if (zero? count) (log-message "done with ~a derivations" total) (let*-values (((batch rest) (if (> count max-batch-size) - (split-at jobs max-batch-size) - (values jobs '()))) - ((drv) - (map (lambda (job) - (assq-ref job #:derivation)) - batch))) + (split-at drv max-batch-size) + (values drv '())))) (guard (c ((nix-protocol-error? c) (log-message "batch of builds (partially) failed:\ ~a (status: ~a)" (nix-protocol-error-message c) (nix-protocol-error-status c)))) - (log-message "building batch of ~a jobs (~a/~a)" + (log-message "building batch of ~a derivations (~a/~a)" max-batch-size (- total count) total) (let-values (((port finish) (build-derivations& store drv))) @@ -526,43 +516,26 @@ procedure is meant to be called at startup." (- (time-second (current-time time-utc)) age) ";")) -(define (restart-builds db builds) +(define (restart-builds db) "Restart builds whose status in DB is \"pending\" (scheduled or started)." (with-store store - (let*-values (((builds) - (delete-duplicates builds build-derivation=?)) - ((valid stale) - (partition (lambda (build) - (let ((drv (assq-ref build #:derivation))) - (valid-path? store drv))) - builds))) + ;; Note: On a big database, 'db-get-pending-derivations' can take a couple + ;; of minutes, hence 'non-blocking'. + (log-message "retrieving list of pending builds...") + (let*-values (((valid stale) + (partition (cut valid-path? store <>) + (non-blocking (db-get-pending-derivations db))))) ;; We cannot restart builds listed in STALE, so mark them as canceled. (log-message "canceling ~a stale builds" (length stale)) - (for-each (lambda (build) - (db-update-build-status! db (assq-ref build #:derivation) - (build-status canceled))) + (for-each (lambda (drv) + (db-update-build-status! db drv (build-status canceled))) stale) - ;; Those in VALID can be restarted, but some of them may actually be - ;; done already--either because our database is outdated, or because it - ;; was not built by Cuirass. - (let-values (((done remaining) - (partition (lambda (build) - (match (assq-ref build #:outputs) - (((name ((#:path . item))) _ ...) - (valid-path? store item)) - (_ #f))) - valid))) - (log-message "~a of the pending builds had actually completed" - (length done)) - (for-each (lambda (build) - (db-update-build-status! db (assq-ref build #:derivation) - (build-status succeeded))) - done) - - (log-message "restarting ~a pending builds" (length remaining)) - (spawn-builds store db remaining) - (log-message "done with restarted builds"))))) + ;; Those in VALID can be restarted. If some of them were built in the + ;; meantime behind our back, that's fine: 'spawn-builds' will DTRT. + (log-message "restarting ~a pending builds" (length valid)) + (spawn-builds store db valid) + (log-message "done with restarted builds")))) (define (build-packages store db jobs) "Build JOBS and return a list of Build results." @@ -595,7 +568,8 @@ procedure is meant to be called at startup." (define build-ids (map register jobs)) - (spawn-builds store db jobs) + (spawn-builds store db + (map (cut assq-ref <> #:derivation) jobs)) (let* ((results (filter-map (cut db-get-build db <>) build-ids)) (status (map (cut assq-ref <> #:status) results)) |