From 9b5364a3afb03414bd6e3ded2fbfdacabe4e8870 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Wed, 11 Jan 2017 17:06:31 +0100 Subject: daemon: Allow check builds of 'builtin:download' derivations. Fixes . Reported by Leo Famulari . * nix/libstore/build.cc (DerivationGoal::runChild): In the 'isBuiltin' case, check whether DRV's output is in 'redirectedOutputs', and pass an 'output' argument to the built-in builder. (DerivationGoal::addHashRewrite): Add 'printMsg' call. * nix/libstore/builtins.hh (derivationBuilder): Add 'output' parameter. * nix/libstore/builtins.cc (builtinDownload): Likewise. Add OUTPUT to ARGV. * guix/scripts/perform-download.scm (perform-download): Add 'output' parameter. (guix-perform-download): Adjust 'match' clauses accordingly. * tests/derivations.scm ("'download' built-in builder, check mode"): New test. --- nix/libstore/build.cc | 15 +++++++++++++-- nix/libstore/builtins.cc | 10 +++++++--- nix/libstore/builtins.hh | 5 +++-- 3 files changed, 23 insertions(+), 7 deletions(-) (limited to 'nix') diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc index 38048ceebc..cebc404d1c 100644 --- a/nix/libstore/build.cc +++ b/nix/libstore/build.cc @@ -2271,8 +2271,17 @@ void DerivationGoal::runChild() logType = ltFlat; auto buildDrv = lookupBuiltinBuilder(drv.builder); - if (buildDrv != NULL) - buildDrv(drv, drvPath); + if (buildDrv != NULL) { + /* Check what the output file name is. When doing a + 'bmCheck' build, the output file name is different from + that specified in DRV due to hash rewriting. */ + Path output = drv.outputs["out"].path; + auto redirected = redirectedOutputs.find(output); + if (redirected != redirectedOutputs.end()) + output = redirected->second; + + buildDrv(drv, drvPath, output); + } else throw Error(format("unsupported builtin function '%1%'") % string(drv.builder, 8)); _exit(0); @@ -2742,6 +2751,8 @@ Path DerivationGoal::addHashRewrite(const Path & path) rewritesToTmp[h1] = h2; rewritesFromTmp[h2] = h1; redirectedOutputs[path] = p; + printMsg(lvlChatty, format("output '%1%' redirected to '%2%'") + % path % p); return p; } diff --git a/nix/libstore/builtins.cc b/nix/libstore/builtins.cc index 32af767dc4..7ed75e5079 100644 --- a/nix/libstore/builtins.cc +++ b/nix/libstore/builtins.cc @@ -1,5 +1,5 @@ /* GNU Guix --- Functional package management for GNU - Copyright (C) 2016 Ludovic Courtès + Copyright (C) 2016, 2017 Ludovic Courtès This file is part of GNU Guix. @@ -25,7 +25,8 @@ namespace nix { static void builtinDownload(const Derivation &drv, - const std::string &drvPath) + const std::string &drvPath, + const std::string &output) { /* Invoke 'guix perform-download'. */ Strings args; @@ -35,7 +36,10 @@ static void builtinDownload(const Derivation &drv, /* Close all other file descriptors. */ closeMostFDs(set()); - const char *const argv[] = { "download", drvPath.c_str(), NULL }; + const char *const argv[] = + { + "download", drvPath.c_str(), output.c_str(), NULL + }; /* XXX: Hack our way to use the 'download' script from 'LIBEXECDIR/guix' or just 'LIBEXECDIR', depending on whether we're running uninstalled or diff --git a/nix/libstore/builtins.hh b/nix/libstore/builtins.hh index 79171fcb6c..396ea14ebc 100644 --- a/nix/libstore/builtins.hh +++ b/nix/libstore/builtins.hh @@ -1,5 +1,5 @@ /* GNU Guix --- Functional package management for GNU - Copyright (C) 2016 Ludovic Courtès + Copyright (C) 2016, 2017 Ludovic Courtès This file is part of GNU Guix. @@ -33,7 +33,8 @@ namespace nix { /* Build DRV, which lives at DRVPATH. */ typedef void (*derivationBuilder) (const Derivation &drv, - const std::string &drvPath); + const std::string &drvPath, + const std::string &output); /* Return the built-in builder called BUILDER, or NULL if none was found. */ -- cgit v1.2.3