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authorLudovic Courtès <ludo@gnu.org>2018-10-15 22:40:35 +0200
committerLudovic Courtès <ludo@gnu.org>2018-10-15 22:40:35 +0200
commit6ef61cc4c30e94acbd7437f19c893f63a7112267 (patch)
tree84438580eccfeb44780d0434293e7fd84bb7be53 /guix/store.scm
parent2ab321ca37d1c00c1540d78d587226d3d487b2d4 (diff)
downloadguix-6ef61cc4c30e94acbd7437f19c893f63a7112267.tar
guix-6ef61cc4c30e94acbd7437f19c893f63a7112267.tar.gz
daemon: Support multiplexed build output.
This allows clients to tell whether output comes from the daemon or, if it comes from a builder, from which builder it comes. The latter is particularly useful when MAX-BUILD-JOBS > 1. * nix/libstore/build.cc (DerivationGoal::tryBuildHook) (DerivationGoal::startBuilder): Print the child's PID in "@ build-started" traces. (DerivationGoal::handleChildOutput): Define 'prefix', pass it to 'writeToStderr'. * nix/libstore/globals.cc (Settings:Settings): Initialize 'multiplexedBuildOutput'. (Settings::update): Likewise. * nix/libstore/globals.hh (Settings)[multiplexedBuildOutput]: New field. Update 'printBuildTrace' documentation. * nix/libstore/worker-protocol.hh (PROTOCOL_VERSION): Bump to 0.163. * nix/nix-daemon/nix-daemon.cc (performOp) <wopSetOptions>: Special-case "multiplexed-build-output" and remove "use-ssh-substituter". * guix/store.scm (set-build-options): Add #:multiplexed-build-output? and honor it. (%protocol-version): Bump to #x163. * tests/store.scm ("multiplexed-build-output"): New test. fixlet
Diffstat (limited to 'guix/store.scm')
-rw-r--r--guix/store.scm15
1 files changed, 14 insertions, 1 deletions
diff --git a/guix/store.scm b/guix/store.scm
index 8b35fc8d7a..b1bdbf3813 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -155,7 +155,7 @@
derivation-log-file
log-file))
-(define %protocol-version #x162)
+(define %protocol-version #x163)
(define %worker-magic-1 #x6e697863) ; "nixc"
(define %worker-magic-2 #x6478696f) ; "dxio"
@@ -709,6 +709,15 @@ encoding conversion errors."
;; disabled by default.
print-extended-build-trace?
+ ;; When true, the daemon prefixes builder output
+ ;; with "@ build-log" traces so we can
+ ;; distinguish it from daemon output, and we can
+ ;; distinguish each builder's output
+ ;; (PRINT-BUILD-TRACE must be true as well.) The
+ ;; latter is particularly useful when
+ ;; MAX-BUILD-JOBS > 1.
+ multiplexed-build-output?
+
build-cores
(use-substitutes? #t)
@@ -757,6 +766,10 @@ encoding conversion errors."
`(("print-extended-build-trace"
. ,(if print-extended-build-trace? "1" "0")))
'())
+ ,@(if multiplexed-build-output?
+ `(("multiplexed-build-output"
+ . ,(if multiplexed-build-output? "true" "false")))
+ '())
,@(if timeout
`(("build-timeout" . ,(number->string timeout)))
'())