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2018-06-14Remove 'guix-register' and its traces.Ludovic Courtès
* Makefile.am (SH_TESTS): Remove tests/guix-register.sh. * build-aux/pre-inst-env.in (GUIX_REGISTER): Remove. * gnu/build/install.scm (directives): Remove outdated comment. * gnu/build/vm.scm (root-partition-initializer): Update comment. * gnu/packages/package-management.scm (guix-register): Remove. * guix/config.scm.in (%sbindir, %guix-register-program): Remove. * guix/scripts/system.scm (install): Adjust docstring. * guix/self.scm (make-config.scm): Remove #:guix. Do not generate %sbindir and %guix-register-program. (specification->package): Remove "guix". * nix/guix-register/guix-register.cc: Remove. * nix/libstore/store-api.cc (decodeValidPathInfo): Remove. * nix/libstore/store-api.hh (decodeValidPathInfo): Remove declaration. * nix/local.mk (sbin_PROGRAMS, guix_register_SOURCES) (guix_register_CPPFLAGS, guix_register_LDFLAGS): Remove. * tests/guix-register.sh: Remove.
2018-06-14database: 'with-database' can now initialize new databases.Ludovic Courtès
* nix/libstore/schema.sql: Rename to... * guix/store/schema.sql: ... this. * Makefile.am (nobase_dist_guilemodule_DATA): Add it. * nix/local.mk (%D%/libstore/schema.sql.hh): Adjust accordingly. * guix/store/database.scm (sql-schema): New variable. (sqlite-exec, initialize-database, call-with-database): New procedures. (with-database): Rewrite in terms of 'call-with-database'. * tests/store-database.scm ("new database"): New test. * guix/self.scm (compiled-guix)[*core-modules*]: Add 'schema.sql' to #:extra-files.
2018-05-17daemon: Allow building for armhf-linux on aarch64-linux.Efraim Flashner
* nix/libstore/build.cc (canBuildLocally): Allow building armhf-linux builds on aarch64-linux. (DerivationGoal::runChild) Throw error if attempting to build for armhf-linux on an unsupported platform. * doc/guix.texi (Invoking guix build): Document how to build natively for armhf-linux on aarch64-linux. Add note that on some aarch64 machines this is unsupported.
2018-03-30daemon: Remove unused schema upgrade code.Ludovic Courtès
* nix/libstore/local-store.cc (LocalStore): Remove upgrade code. (LocalStore::queryValidPathsOld, LocalStore::queryPathInfoOld) (LocalStore::upgradeStore6, makeMutable) (LocalStore::upgardeStore7): Remove. * nix/libstore/local-store.hh: Adjust accordingly.
2018-03-30daemon: Remove dead code.Ludovic Courtès
* nix/libstore/globals.cc (Settings::loadConfFile, Settings::unpack): Remove. * nix/libstore/globals.hh: Adjust accordingly. * nix/libstore/misc.cc (queryMissing): Remove. * nix/libstore/misc.hh: Adjust accordingly. * nix/libstore/store-api.cc (followLinksToStore) (followLinksToStorePath, computeStorePathForHash): Remove. * nix/libstore/store-api.hh: Adjust accordingly.
2018-01-11daemon: Always try to execute the builder regardless of the platform.Ludovic Courtès
* nix/libstore/build.cc (runChild): Move platform check after 'execve' call. Check specifically for ENOEXEC.
2018-01-07daemon: Make libbz2 an optional dependency.Ludovic Courtès
* config-daemon.ac: Don't bail out when libbz2 is missing. Define 'HAVE_LIBBZ2' Automake conditional. * nix/libstore/build.cc: Wrap relevant bits in '#if HAVE_BZLIB_H'. * nix/libstore/globals.cc (Settings::Settings): 'logCompression' defaults to COMPRESSION_GZIP when HAVE_BZLIB_H is false. * nix/libstore/globals.hh (CompressionType): Make 'COMPRESSION_BZIP2' conditional on HAVE_BZLIB_H. * nix/local.mk (guix_register_LDADD, guix_daemon_LDADD): Add -lbz2 only when HAVE_LIBBZ2. * nix/nix-daemon/guix-daemon.cc (parse_opt): Ignore "bzip2" when not HAVE_BZLIB_H.
2018-01-07daemon: Add gzip log compression.Ludovic Courtès
* nix/nix-daemon/guix-daemon.cc (GUIX_OPT_LOG_COMPRESSION): New macro. (options): Mark "disable-log-compression" as hidden and add "log-compression". (parse_opt): Handle GUIX_OPT_LOG_COMPRESSION. * nix/libstore/build.cc (DerivationGoal): Add 'gzLogFile'. (openLogFile): Initialize it when 'logCompression' is COMPRESSION_GZIP. (closeLogFile, handleChildOutput): Honor 'gzLogFile'. * nix/libstore/globals.hh (Settings)[compressLog]: Remove. [logCompression]: New field. (CompressionType): New enum. * nix/libstore/globals.cc (Settings::Settings): Initialize it. (update): Remove '_get' call for 'compressLog'. * nix/local.mk (guix_daemon_LDADD, guix_register_LDADD): Add -lz. * guix/store.scm (log-file): Handle '.gz' log files. * tests/guix-daemon.sh: Add test with '--log-compression=gzip'. * doc/guix.texi (Invoking guix-daemon): Adjust accordingly. * config-daemon.ac: Check for libz and zlib.h.
2017-08-18Simplify remouting with MS_PRIVATE in sandbox buildJörg Thalheim
also fix race condition if mounts are added after mountinfo is read.
2017-08-07daemon: Ensure the child stack is aligned on a 16-byte boundary.Mark H Weaver
* nix/libstore/build.cc (DerivationGoal::startBuilder): When calling 'clone', ensure that the stack is aligned on a 16-byte boundary.
2017-08-05daemon: On aarch64, use increments of 16 on the stack.Efraim Flashner
* nix/libstore/build.cc (DerivationGoal::startBuilder): When on aarch64, when calling clone(), increment the stack by 16.
2017-08-05Revert "daemon: Ensure proper alignment on the stack."Mark H Weaver
This reverts commit ab4ccc8fcfaf2215d4b33b1376147e4c2c70426a.
2017-05-30daemon: Report hash mismatches in a cleaner way.Ludovic Courtès
Suggested by Hartmut Goebel. * nix/libstore/build.cc (DerivationGoal::registerOutputs): Report hash mismatches on 3 lines for clarity. (SubstitutionGoal::finished): Likewise.
2017-02-20daemon: Ensure proper alignment on the stack.Efraim Flashner
* nix/libstore/build.cc (startBuilder): When calling 'clone', increase the step to 16 and ensure it aligns properly on the stack.
2017-02-07daemon: Define 'NIX_STORE' before invoking 'guix perform-download'.Ludovic Courtès
Reported by rohit yadav <rohityadav@utexas.edu> at <https://lists.gnu.org/archive/html/guix-devel/2017-02/msg00191.html>. This fixes a regression whereby 'guix perform-download' would always see NIX_STORE as unset and thus use "/gnu/store", leading it to miscompute the hydra.gnu.org content-addressed URLs when the store file name is not "/gnu/store". * nix/libstore/builtins.cc (builtinDownload): Add 'setenv' call for 'NIX_STORE'.
2017-01-15daemon: Client settings no longer override daemon settings.Ludovic Courtès
Fixes <http://bugs.gnu.org/20217>. * nix/libstore/worker-protocol.hh (PROTOCOL_VERSION): Bump to 0x161. * nix/nix-daemon/nix-daemon.cc (performOp): "build-max-jobs", "build-max-silent-time", and "build-cores" are no longer read upfront; instead, read them from the key/value list at the end. * nix/nix-daemon/guix-daemon.cc (main): Explicitly set 'settings.maxBuildJobs'. * guix/store.scm (%protocol-version): Bump to #x161. (set-build-options): #:max-build-jobs, #:max-silent-time, and #:build-cores now default to #f. Adjust handshake to new protocol. * tests/store.scm ("build-cores"): New test. * tests/guix-daemon.sh: Add test for default "build-cores" value.
2017-01-11daemon: Allow check builds of 'builtin:download' derivations.Ludovic Courtès
Fixes <http://bugs.gnu.org/25089>. Reported by Leo Famulari <leo@famulari.name>. * 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.
2016-12-29daemon: Allow fixed-output derivation builds with TMPDIR set.Ludovic Courtès
Fixes <http://bugs.gnu.org/25242>. Reported by Leo Famulari <leo@famulari.name>. The regression was introduced in 94d92c7796a3dd50c27d532315f7d497ac99f08e. * nix/libstore/build.cc (DerivationGoal::startBuilder): Set 'useChroot' as a function 'of isBuiltin(drv)'. (DerivationGoal::runChild): Use 'useChroot' instead of 'useChroot && !isBuiltin(drv)'.
2016-12-09daemon: Set ownership of kept build directories to the calling user.Hartmut Goebel
Fixes <http://bugs.gnu.org/15890>. * nix/libstore/globals.hh (Settings) Add clientUid and clientGid. * nix/nix-daemon/nix-daemon.cc (daemonLoop] Store UID and GID of the caller in settings. * nix/libstore/build.cc (_chown): New function. (DerivationGoal::deleteTmpDir): Use it, change ownership of build directory if it is kept and the new owner is not root.
2016-12-05daemon: Fix invalid Boost format string.Ludovic Courtès
* nix/libstore/optimise-store.cc (LocalStore::optimisePath_): Use %3% instead of %m, the latter being an invalid Boost format specifier.
2016-11-16daemon: Add 'built-in-builders' RPC.Ludovic Courtès
* nix/libstore/builtins.cc (builtinBuilderNames): New function. * nix/libstore/builtins.hh (builtinBuilderNames): New declaration. * nix/libstore/worker-protocol.hh (PROTOCOL_VERSION): Bump to 0x160. (WorkerOp)[wopBuiltinBuilders]: New value. * nix/nix-daemon/nix-daemon.cc (performOp): Handle it. * guix/store.scm (operation-id)[built-in-builders]: New value. * guix/store.scm (read-arg): Add 'string-list'. (built-in-builders): New procedure. * tests/derivations.scm ("built-in-builders"): New test.
2016-11-16daemon: Add "builtin:download" derivation builder.Ludovic Courtès
This ensures that 1) the derivation doesn't change when Guix changes; 2) the derivation closure doesn't contain Guix and its dependencies; 3) we don't have to rely on ugly chroot hacks. Adapted from Nix commit 0a2bee307b20411f5b0dda0c662b1f9bb9e0e131. * nix/libstore/build.cc (DerivationGoal::runChild): Add special case for 'isBuiltin(drv)'. Disable chroot when 'isBuiltin(drv)'. * nix/libstore/builtins.cc, nix/libstore/builtins.hh, nix/scripts/download.in, guix/scripts/perform-download.scm: New files. * guix/ui.scm (show-guix-help)[internal?]: Add 'perform-download'. * nix/local.mk (libstore_a_SOURCES): Add builtins.cc. (libstore_headers): Add builtins.hh. (nodist_pkglibexec_SCRIPTS): Add 'scripts/download'. * config-daemon.ac: Emit 'scripts/download'. * Makefile.am (MODULES): Add 'guix/scripts/perform-download.scm'. * tests/derivations.scm ("unknown built-in builder") ("'download' built-in builder") ("'download' built-in builder, invalid hash") ("'download' built-in builder, not found") ("'download' built-in builder, not fixed-output"): New tests. Co-authored-by: Eelco Dolstra <eelco.dolstra@logicblox.com>
2016-10-28daemon: Do not error out when deduplication fails due to ENOSPC.Ludovic Courtès
This solves a problem whereby if /gnu/store/.links had enough entries, ext4's directory index would be full, leading to link(2) returning ENOSPC. * nix/libstore/optimise-store.cc (LocalStore::optimisePath_): Upon ENOSPC from link(2), print a message and return instead of throwing a 'SysError'.
2016-10-28daemon: Improve the SQLite wrapper API.Eelco Dolstra
In particular, this eliminates a bunch of boilerplate code. Also integrates these Nix commits: 80da7a6 Probably fix SQLITE_BUSY errors 37a337b throwSQLiteError(): Check for SIGINT so we don't loop forever Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2016-10-28daemon: Factor out SQLite handling.Eelco Dolstra
* nix/libstore/local-store.cc: Move SQLite code to... * nix/libstore/sqlite.cc, nix/libstore/sqlite.hh: ... here. New files. * nix/local.mk (libstore_a_SOURCES): Add sqlite.cc. (libstore_headers): Add sqlite.hh. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2016-10-28daemon: Turn retrying SQLite transactions into a higher-order function.Eelco Dolstra
* nix/libstore/local-store.cc (retry_sqlite, end_retry_sqlite): Remove. (retrySQLite): New template. (LocalStore::registerFailedPath, LocalStore::hasPathFailed) (LocalStore::queryFailedPaths, LocalStore::clearFailedPaths) (LocalStore::queryPathInfo, LocalStore::isValidPath_) (LocalStore::queryValidPaths, LocalStore::queryAllValidPaths) (LocalStore::queryReferrers, LocalStore::queryValidDerivers) (LocalStore::queryDerivationOutputs) (LocalStore::queryDerivationOutputNames) (LocalStore::queryPathFromHashPart, LocalStore::registerValidPaths) (LocalStore::invalidatePathChecked): Use it. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2016-06-26daemon: Rename 'NIX_CONF_DIR' to 'GUIX_CONFIGURATION_DIRECTORY'.David Craven
Partly fixes <http://bugs.gnu.org/22459>. Reported by Jeff Mickey <j@codemac.net> and David Craven <david@craven.ch>. * nix/libstore/globals.cc (Settings::processEnvironment()): Change 'NIX_CONF_DIR' to 'GUIX_CONFIGURATION_DIRECTORY'. * nix/local.mk (libstore_a_CPPFLAGS): Likewise. * guix/config.scm.in (%config-directory): Likewise. * build-aux/test-env.in: Likewise. * gnu/packages/patches/hydra-automake-1.15.patch: Likewise. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2016-05-31daemon: Substitute queries return immediately when substitutes are disabled.Ludovic Courtès
Reported by Federico Beffa <beffa@ieee.org> at <https://lists.gnu.org/archive/html/guix-devel/2016-05/msg00928.html>. * nix/libstore/local-store.cc (LocalStore::querySubstitutablePaths) (LocalStore::querySubstitutablePathInfos): Return when 'settings.useSubstitutes' is false. * tests/store.scm ("references/substitutes missing reference info"): Make sure to return #f on failure. * tests/store.scm ("substitutable-path-info when substitutes are turned off"): ("substitutable-paths when substitutes are turned off"): New tests.
2016-05-31daemon: Fix typo.Ludovic Courtès
Fixes a regression/typo introduced in e08380fb6cefd3fd67c3c220a3ddaf385e6413cf. * nix/libstore/build.cc (DerivationGoal::startBuilder): Canonicalize "/tmp", not "/tmp/guix-build".
2016-05-31daemon: rounds: Keep the differing output if -K is given.Eelco Dolstra
Regardless of -K, we now also print which output differs.
2016-05-31daemon: Canonicalize gids to 0.Eelco Dolstra
Previously files in the Nix store were owned by root or by nixbld, depending on whether they were created by a substituter or by a builder. This doesn't matter much, but causes spurious diffoscope differences. So use root everywhere.
2016-05-31daemon: check: Keep the differing output if -K is given.Eelco Dolstra
This makes it easier to investigate the non-determinism, e.g. $ nix-build pkgs/stdenv/linux -A stage1.pkgs.zlib --check -K error: derivation ‘/nix/store/l54i8wlw22656i4pk05c52ngv9rpl39q-zlib-1.2.8.drv’ may not be deterministic: output ‘/nix/store/11a27shh6n2ivi4a7s964i65ql80cf27-zlib-1.2.8’ differs from ‘/nix/store/11a27shh6n2ivi4a7s964i65ql80cf27-zlib-1.2.8-check’ $ diffoscope /nix/store/11a27shh6n2ivi4a7s964i65ql80cf27-zlib-1.2.8 /nix/store/11a27shh6n2ivi4a7s964i65ql80cf27-zlib-1.2.8-check ... ├── lib/libz.a │ ├── metadata │ │ @@ -1,15 +1,15 @@ │ │ -rw-r--r-- 30001/30000 3096 Jan 12 15:20 2016 adler32.o ... │ │ +rw-r--r-- 30001/30000 3096 Jan 12 15:28 2016 adler32.o ... Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2016-05-31daemon: check: Fix "failed to produce output path".Eelco Dolstra
This occured when sandbox building is disabled, at least one output exists, and at least one other output does not.
2016-05-31daemon: check: Fix assertion failure when some outputs are missing.Eelco Dolstra
E.g. $ nix-build pkgs/stdenv/linux/ -A stage1.pkgs.perl --check nix-store: src/libstore/build.cc:1323: void nix::DerivationGoal::tryToBuild(): Assertion `buildMode != bmCheck || validPaths.size() == drv->outputs.size()' failed. when perl.out exists but perl.man doesn't. The fix is to only check the outputs that exist. Note that "nix-build -A stage1.pkgs.all --check" will still give a (proper) error in this case.
2016-05-31daemon: When repairing, rebuild if there is no substituter.Eelco Dolstra
2016-05-31daemon: Fix --repair failure on multiple-output derivations.Eelco Dolstra
If repair found a corrupted/missing path that depended on a multiple-output derivation, and some of the outputs of the latter were not present, it failed with a message like error: path ‘/nix/store/cnfn9d5fjys1y93cz9shld2xwaibd7nn-bash-4.3-p42-doc’ is not valid Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2016-05-31daemon: ~PathLocks(): Handle exceptions.Eelco Dolstra
Otherwise, since the call to write a "d" character to the lock file can fail with ENOSPC, we can get an unhandled exception resulting in a call to terminate().
2016-05-31daemon: Handle /tmp being a symlink.Eelco Dolstra
* nix/libstore/build.cc (DerivationGoal::startBuilder): Call 'canonPath' on "/tmp".
2015-12-30daemon: Build in /tmp/guix-build-*.Ludovic Courtès
* nix/libstore/build.cc (DerivationGoal::startBuilder): Use "guix-build" instead of "nix-build" for TMPDIR. * doc/guix.texi (Build Environment Setup): Adjust accordingly.
2015-12-30daemon: Remove unused 'RemoteStore' class.Ludovic Courtès
* nix/libstore/remote-store.cc, nix/libstore/remote-store.hh: Remove. * nix/libstore/store-api.cc (readStorePath, readStorePaths): New functions, formerly in remote-store.cc. (openStore): Remove reference to 'RemoteStore'. * daemon.am (libstore_a_SOURCES): Remove remote-store.cc. (libstore_headers): Remote remote-store.hh.
2015-12-13daemon: Better distinguish build statuses.Eelco Dolstra
In Nix itself, the new 'BuildResult' type is returned by the new 'buildDerivation' method, which we don't have and need. * nix/libstore/build.cc (Goal)[cancel]: Remove. [timeOut]: New pure virtual method. (DerivationGoal)[result]: New field. [cancel]: Remove. [timedOut, getResult, done]: New methods. (DerivationGoal::cancel): Remove. (DerivationGoal::timedOut): New method. (DerivationGoal::haveDerivation): Call 'done' instead of 'amDone'. (DerivationGoal::outputsSubstituted): Ditto. (DerivationGoal::inputsRealised): Ditto. (DerivationGoal::buildDone): Ditto. (DerivationGoal::handleChildOutput): Call 'timedOut' instead of 'cancel'. (DerivationGoal::done): New method. (SubstitutionGoal)[cancel]: Remove. [timedOut]: New method. (SubstitutionGoal::cancel): Remove. (SubstitutionGoal::timedOut): New method. (Worker::waitForInput): Use it. * nix/libstore/store-api.hh (BuildResult): New struct. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2015-12-09daemon: Use deterministic $TMPDIR in chroot.Eelco Dolstra
Rather than using $<host-TMPDIR>/nix-build-<drvname>-<number>, the temporary directory is now always /tmp/nix-build-<drvname>-0. This improves bitwise-exact reproducibility for builds that store $TMPDIR in their build output. (Of course, those should still be fixed...) * nix/libstore/build.cc (DerivationGoal)[tmpDirInSandbox]: New field. (DerivationGoal::startBuilder): Initialize 'useChroot' earlier. Compute 'tmpDirInSandbox', and use it when populating 'dirsInChroot'. * doc/guix.texi (Build Environment Setup): Document it. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2015-12-08daemon: Allow builds to be repeated.Eelco Dolstra
This makes it easy to detect non-deterministic builds. * nix/libstore/build.cc (DerivationGoal): Remove 'InodesSeen'; add 'curRound', 'nrRound', and 'prevInfos'. (DerivationGoal::inputsRealised): Initialize 'nrRound'. (NotDeterministic): New error type. (DerivationGoal::buildDone): Check whether we need to repeat. (DerivationGoal::startBuilder): Adjust message. (DerivationGoal::registerOutputs): Check whether we get the same result. * nix/libstore/globals.cc (Settings::get(const string & name, int def)): New method. * nix/libstore/globals.hh (Settings): Add it. * nix/libstore/store-api.hh (ValidPathInfo): Add operator ==. * nix/nix-daemon/nix-daemon.cc (performOp): Allow "build-repeat" for "untrusted" users. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
2015-12-02daemon: Add 'buildMode' parameter to 'buildPaths' RPC.Ludovic Courtès
* nix/libstore/worker-protocol.hh (PROTOCOL_VERSION): Bump to 0x10f. * nix/libstore/remote-store.cc (RemoteStore::buildPaths): Send the BUILDMODE when the daemon supports it. Reject invalid values of BUILDMODE for old daemons. * nix/nix-daemon/nix-daemon.cc (performOp) <wopBuildPaths>: Read the build mode when the client supports it.
2015-12-02daemon: optimizePath: Detect some .links corruptions.Eelco Dolstra
If automatic store optimisation is enabled, and a hard-linked file in the store gets corrupted, then the corresponding .links entry will also be corrupted. In that case, trying to repair with --repair or --repair-path won't work, because the new "good" file will be replaced by a hard link to the corrupted file. We can catch most of these cases by doing a sanity-check on the file sizes.
2015-12-02daemon: Filter build-chroot-dirs entries that conflict with derivation outputs.Eelco Dolstra
Fixes https://github.com/NixOS/nixpkgs/issues/9504. Note that this means we may have a non-functional /bin/sh in the chroot while rebuilding Bash or one of its dependencies. Ideally those packages don't rely on /bin/sh though.
2015-12-02daemon: Prevent .chroot from being GC'ed when using ↵Eelco Dolstra
LocalStore::buildDerivation() Fixes #616.
2015-11-01Remove unneeded HAVE_UNSHARE.Manolis Ragkousis
* src/libstore/build.cc (CHROOT_ENABLED): Remove HAVE_UNSHARE.
2015-07-07daemon: Flush upon '\r' when reading the substituter's stderr.Ludovic Courtès
This commit had been inadvertently reverted in 322eeb8. * nix/libstore/local-store.cc (LocalStore::getLineFromSubstituter): Flush when the line contains '\r'.
2015-07-03Merge branch 'nix'.Ludovic Courtès
This is a squashed commit of the following: commit 0dccab9f417b406f5d4aedc81900fc7b2f16c9f6 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Thu Jul 2 00:30:16 2015 +0200 Typo commit 2cd28517b13524c242c7758783b0b2d8250fdded Author: Ludovic Courtès <ludo@gnu.org> Date: Wed Jul 1 14:56:34 2015 +0200 Preserve supplementary groups of build users The following patch is an attempt to address this bug (see <http://bugs.gnu.org/18994>) by preserving the supplementary groups of build users in the build environment. In practice, I would expect that supplementary groups would contain only one or two groups: the build users group, and possibly the “kvm” group. [Changed &at(0) to data() and removed tabs - Eelco] commit 6e38685ef65284093df79ebe7378bac33b0e7e5d Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Tue Jun 30 21:41:26 2015 +0200 GC: Handle ENOSPC creating/moving to the trash directory Issue #564. commit 5e0a9ae2e25a1016389f4893a6ed6682aadcf51d Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Mon Jun 22 15:54:55 2015 +0200 Use posix_fallocate to create /nix/var/nix/db/reserved commit 4e5ab98d6d14f8b0e3bd1d77b2f4f2354e7a49a8 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Mon Jun 22 15:47:40 2015 +0200 Make /nix/var/nix/db/reserved bigger Issue #564. commit 60bda60fc06135aa97a93301b1a9e2270768f5b3 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Wed Jun 10 16:17:06 2015 +0200 Export outputPaths function This is useful for the new hydra-queue-runner. commit 5dfea34048aa8541f20aeb2fbcd163561b609a49 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Thu Jul 2 22:51:33 2015 +0200 Use std::vector::data() commit 2459458bc8257734ca78cb7a2db3df20bd730ec0 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Thu Jun 4 16:04:41 2015 +0200 Allow substitutes for builds that have preferLocalBuild set Not substituting builds with "preferLocalBuild = true" was a bad idea, because it didn't take the cost of dependencies into account. For instance, if we can't substitute a fetchgit call, then we have to download/build git and all its dependencies. Partially reverts 5558652709f27e8a887580b77b93c705659d7a4b and adds a new derivation attribute "allowSubstitutes" to specify whether a derivation may be substituted.