<feed xmlns='http://www.w3.org/2005/Atom'>
<title>guix/nix/libstore/derivations.cc, branch ruby-team</title>
<subtitle>Transactional package manager, declarative GNU/Linux distribution, reproducible deployment tool, and more! https://guix.gnu.org</subtitle>
<link rel='alternate' type='text/html' href='https://git.vineetk.net/guix/'/>
<entry>
<title>daemon: Use inline functions and variables instead of extern</title>
<updated>2025-11-12T17:34:06+00:00</updated>
<author>
<name>Congcong Kuo</name>
<email>congcong.kuo@gmail.com</email>
</author>
<published>2025-10-20T03:39:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.vineetk.net/guix/commit/?id=d1a9fb85a4d46722f06d01bde6f61acae3d9ea7a'/>
<id>d1a9fb85a4d46722f06d01bde6f61acae3d9ea7a</id>
<content type='text'>
Avoid separate declarations and definitions for so-called 'global' objects.

* nix/libstore/derivations.{cc, hh} (drvHashes): Use inline instead of separate
declaration and definition.
* nix/libstore/globals.{cc, hh} (settings, nixVersion): Same.
* nix/libstore/local-store.hh (drvsLogDir, deduplicationMinSize): Same.
* nix/libstore/optimise-store.cc (deduplicationMinSize): Same.
* nix/libstore/store-api.{cc, hh} (store): Same.
* nix/libutil/archive.{cc, hh} (defaultPathFilter): Same.
* nix/libutil/hash.{cc, hh} (base32Chars): Same and modify header files.
* nix/libutil/util.{cc, hh} (logType, verbosity, _writeToStderr,
_isInterrupted): Same.
* nix/local.mk: Modified according to the rename of shared.hh.
* nix/nix-daemon/guix-daemon.cc (blockInt, argvSaved, run): Same and
modify header files.
* nix/nix-daemon/nix-daemon.cc: Modify header files.
* nix/nix-daemon/shared.hh: Renamed to nix-daemon.hh

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Avoid separate declarations and definitions for so-called 'global' objects.

* nix/libstore/derivations.{cc, hh} (drvHashes): Use inline instead of separate
declaration and definition.
* nix/libstore/globals.{cc, hh} (settings, nixVersion): Same.
* nix/libstore/local-store.hh (drvsLogDir, deduplicationMinSize): Same.
* nix/libstore/optimise-store.cc (deduplicationMinSize): Same.
* nix/libstore/store-api.{cc, hh} (store): Same.
* nix/libutil/archive.{cc, hh} (defaultPathFilter): Same.
* nix/libutil/hash.{cc, hh} (base32Chars): Same and modify header files.
* nix/libutil/util.{cc, hh} (logType, verbosity, _writeToStderr,
_isInterrupted): Same.
* nix/local.mk: Modified according to the rename of shared.hh.
* nix/nix-daemon/guix-daemon.cc (blockInt, argvSaved, run): Same and
modify header files.
* nix/nix-daemon/nix-daemon.cc: Modify header files.
* nix/nix-daemon/shared.hh: Renamed to nix-daemon.hh

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>daemon: Use starts_with() and ends_with() instead of string() or hasSuffix()</title>
<updated>2025-11-03T16:18:37+00:00</updated>
<author>
<name>Congcong Kuo</name>
<email>congcong.kuo@gmail.com</email>
</author>
<published>2025-10-20T07:47:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.vineetk.net/guix/commit/?id=85a72ed28e91f7f918a439c8678254537a374ac7'/>
<id>85a72ed28e91f7f918a439c8678254537a374ac7</id>
<content type='text'>
* nix/libstore/build.cc (DerivationGoal::tryBuildHook): Use starts_with instead
of string()
* nix/libstore/builtins.cc (lookupBuiltinBuilder): Same.
* nix/libstore/builtins.hh (isBuiltin): Same and fix indentation of the file.
* nix/libstore/derivations.cc (DerivationOutput::parseHashInfo, isDerivation):
Same and clean header files.
* nix/libstore/gc.cc (addPermRoot, LocalStore::isActiveTempFile): Same.
* nix/libstore/globals.cc: Same.
* nix/libstore/local-store.cc: Same.
* nix/libstore/misc.cc: Same.
* nix/libstore/store-api.cc (checkStoreName): Same.
* nix/libutil/affinity.cc: Same.
* nix/libutil/archive.cc: Same.
* nix/libutil/spawn.cc: Same.
* nix/libutil/util.{cc, hh} (hasSuffix): Removed.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* nix/libstore/build.cc (DerivationGoal::tryBuildHook): Use starts_with instead
of string()
* nix/libstore/builtins.cc (lookupBuiltinBuilder): Same.
* nix/libstore/builtins.hh (isBuiltin): Same and fix indentation of the file.
* nix/libstore/derivations.cc (DerivationOutput::parseHashInfo, isDerivation):
Same and clean header files.
* nix/libstore/gc.cc (addPermRoot, LocalStore::isActiveTempFile): Same.
* nix/libstore/globals.cc: Same.
* nix/libstore/local-store.cc: Same.
* nix/libstore/misc.cc: Same.
* nix/libstore/store-api.cc (checkStoreName): Same.
* nix/libutil/affinity.cc: Same.
* nix/libutil/archive.cc: Same.
* nix/libutil/spawn.cc: Same.
* nix/libutil/util.{cc, hh} (hasSuffix): Removed.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>daemon: Bump to C++20 and use ‘std::format’ instead of ‘boost::format’.</title>
<updated>2025-10-19T19:29:39+00:00</updated>
<author>
<name>Congcong Kuo</name>
<email>congcong.kuo@gmail.com</email>
</author>
<published>2025-07-21T03:02:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.vineetk.net/guix/commit/?id=3af52f845fe2ceb448416ac7b9f48925673c594e'/>
<id>3af52f845fe2ceb448416ac7b9f48925673c594e</id>
<content type='text'>
* nix/boost: This directory and all files inside it are removed.
* nix/libstore/build.cc (Goal::trace): Use ‘std::string’ instead of ‘const format &amp;’.
(DerivationGoal::startBuilder, ...): Use ‘std::format’ or ‘std::vformat’ instead of ‘boost::format’.
* nix/libstore/builtins.cc (builtinDownload): Same.
* nix/libstore/derivations.cc (DerivationOutput::parseHashInfo, ...): Same.
* nix/libstore/gc.cc (LocalStore::openGCLock, ...): Same.
* nix/libstore/globals.cc (Settings::_get): Same.
* nix/libstore/local-store.cc: (checkStoreNotSymlink, ...): Same.
* nix/libstore/misc.cc (dfsVisit, showBytes): Same
* nix/libstore/optimise-store.cc (makeWritable, ...): Same.
* nix/libstore/pathlocks.cc (openLockFile, ...): Same.
* nix/libstore/references.cc (search, scanForReferences): Same.
* nix/libstore/sqlite.hh (throwSQLiteError): Use ‘std::string’ instead of ‘const format &amp;’.
* nix/libstore/sqlite.cc (throwSQLiteError): Use ‘std::string’ instead of ‘const format &amp;’.
* nix/libstore/store-api.cc (assertStorePath, ...): Use ‘std::format’ instead of ‘boost::format’.
* nix/libutil/affinity.cc (setAffinityTo): Same.
* nix/libutil/archive.cc (dumpContents, ...): Same.
* nix/libutil/hash.cc (parseHash, parseHash32, parseHash16or32, hashFile): Same.
* nix/libutil/hash.hh (parseHash, parseHash32, parseHash16or32, isHash): Same.
* nix/libutil/serialise.cc : Add ‘&lt;cassert&gt;’ header file.
* nix/libutil/spawn.cc (addPhaseAfter, ...): Use ‘std::format’ instead of ‘boost::format’.
* nix/libutil/types.hh (FormatOrString): Removed.
(BaseError, BaseError::addPrefix, SysError, MakeError):
Use ‘std::string or std::string_view’ instead of ‘FormatOrString’.
* nix/libutil/util.hh (Nest::open, printMsg_, warnOnce, expect): Same.
* nix/libutil/util.cc (BaseError::BaseError, ...): Same.
(writeToStderr, _interrupted): Use std::uncaught_exceptions() instead of std::uncaught_exception()
* nix/nix-daemon/nix-daemon.cc (performOp, ...): Same.
* nix/nix-daemon/guix-daemon.cc (string_to_bool, ...): Same.
* nix/local.mk: Remove ‘libformat.a’ from ‘noinst_LIBRARIES’,
remove ‘libformat_a_SOURCES’ and ‘libformat_headers’,
remove ‘libformat_a_CPPFLAGS’ from ‘libutil_a_CPPFLAGS’ and ‘guix_daemon_LDADD’,
update ‘AM_CXXFLAGS’ to ‘-std=c++20’.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* nix/boost: This directory and all files inside it are removed.
* nix/libstore/build.cc (Goal::trace): Use ‘std::string’ instead of ‘const format &amp;’.
(DerivationGoal::startBuilder, ...): Use ‘std::format’ or ‘std::vformat’ instead of ‘boost::format’.
* nix/libstore/builtins.cc (builtinDownload): Same.
* nix/libstore/derivations.cc (DerivationOutput::parseHashInfo, ...): Same.
* nix/libstore/gc.cc (LocalStore::openGCLock, ...): Same.
* nix/libstore/globals.cc (Settings::_get): Same.
* nix/libstore/local-store.cc: (checkStoreNotSymlink, ...): Same.
* nix/libstore/misc.cc (dfsVisit, showBytes): Same
* nix/libstore/optimise-store.cc (makeWritable, ...): Same.
* nix/libstore/pathlocks.cc (openLockFile, ...): Same.
* nix/libstore/references.cc (search, scanForReferences): Same.
* nix/libstore/sqlite.hh (throwSQLiteError): Use ‘std::string’ instead of ‘const format &amp;’.
* nix/libstore/sqlite.cc (throwSQLiteError): Use ‘std::string’ instead of ‘const format &amp;’.
* nix/libstore/store-api.cc (assertStorePath, ...): Use ‘std::format’ instead of ‘boost::format’.
* nix/libutil/affinity.cc (setAffinityTo): Same.
* nix/libutil/archive.cc (dumpContents, ...): Same.
* nix/libutil/hash.cc (parseHash, parseHash32, parseHash16or32, hashFile): Same.
* nix/libutil/hash.hh (parseHash, parseHash32, parseHash16or32, isHash): Same.
* nix/libutil/serialise.cc : Add ‘&lt;cassert&gt;’ header file.
* nix/libutil/spawn.cc (addPhaseAfter, ...): Use ‘std::format’ instead of ‘boost::format’.
* nix/libutil/types.hh (FormatOrString): Removed.
(BaseError, BaseError::addPrefix, SysError, MakeError):
Use ‘std::string or std::string_view’ instead of ‘FormatOrString’.
* nix/libutil/util.hh (Nest::open, printMsg_, warnOnce, expect): Same.
* nix/libutil/util.cc (BaseError::BaseError, ...): Same.
(writeToStderr, _interrupted): Use std::uncaught_exceptions() instead of std::uncaught_exception()
* nix/nix-daemon/nix-daemon.cc (performOp, ...): Same.
* nix/nix-daemon/guix-daemon.cc (string_to_bool, ...): Same.
* nix/local.mk: Remove ‘libformat.a’ from ‘noinst_LIBRARIES’,
remove ‘libformat_a_SOURCES’ and ‘libformat_headers’,
remove ‘libformat_a_CPPFLAGS’ from ‘libutil_a_CPPFLAGS’ and ‘guix_daemon_LDADD’,
update ‘AM_CXXFLAGS’ to ‘-std=c++20’.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>daemon: Remove ‘foreach’ and ‘foreach_reverse’</title>
<updated>2025-06-09T20:05:13+00:00</updated>
<author>
<name>Congcong Kuo</name>
<email>congcong.kuo@gmail.com</email>
</author>
<published>2025-05-29T15:46:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.vineetk.net/guix/commit/?id=3721eb1d6a9077a9bdb752ff0baa519293a788d4'/>
<id>3721eb1d6a9077a9bdb752ff0baa519293a788d4</id>
<content type='text'>
‘foreach_reverse’ is not used anywhere

* nix/libutil/util.hh (foreach, foreach_reverse): Remove.
* nix/libstore/build.cc (addToWeakGoals): Use ‘std::none_of’ instead of macro ‘foreach’.
(Goal::waiteeDone, Goal::amDone, UserLock::acquire, rewriteHashes,
DerivationGoal::addWantedOutputs, DerivationGoal::haveDerivation,
DerivationGoal::outputsSubstituted, DerivationGoal::repairClosure,
DerivationGoal::inputsRealised, DerivationGoal::tryToBuild,
DerivationGoal::buildDone, DerivationGoal::tryBuildHook,
DerivationGoal::startBuilder, DerivationGoal::runChild,
parseReferenceSpecifiers, DerivationGoal::registerOutputs,
DerivationGoal::checkPathValidity, SubstitutionGoal::tryNext,
SubstitutionGoal::referencesValid, Worker::removeGoal,
Worker::childTerminated, Worker::run, Worker::waitForInput): Use range-based
‘for’ instead of macro ‘foreach’.
* nix/libstore/derivations.cc (writeDerivation, unparseDerivation,
hashDerivationModulo): Likewise.
* nix/libstore/gc.cc (addAdditionalRoots, LocalStore::deletePathRecursive,
LocalStore::canReachRoot, LocalStore::collectGarbage): Likewise.
* nix/libstore/globals.cc (Settings::pack): Likewise.
* nix/libstore/local-store.cc (checkDerivationOutputs, queryValidPaths,
querySubstitutablePaths, querySubstitutablePathInfos, registerValidPaths, verifyStore,
verifyPath): Likewise.
* nix/libstore/misc.cc (computeFSClosure, dfsVisit, topoSortPaths): Likewise.
* nix/libstore/optimise-store.cc (LocalStore::optimisePath_, LocalStore::optimiseStore): Likewise.
* nix/libstore/pathlocks.cc (PathLocks::lockPaths, PathLocks::~PathLocks): Likewise.
* nix/libstore/references.cc (search, scanForReferences): Likewise.
* nix/libstore/store-api.cc (checkStoreName, computeStorePathForText,
StoreAPI::makeValidityRegistration, showPaths, readStorePaths): Likewise.
* nix/libutil/serialise.cc (writeStrings): Likewise.
* nix/libutil/util.cc (concatStringsSep): Likewise.
* nix/nix-daemon/nix-daemon.cc (performOp): Likewise.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
‘foreach_reverse’ is not used anywhere

* nix/libutil/util.hh (foreach, foreach_reverse): Remove.
* nix/libstore/build.cc (addToWeakGoals): Use ‘std::none_of’ instead of macro ‘foreach’.
(Goal::waiteeDone, Goal::amDone, UserLock::acquire, rewriteHashes,
DerivationGoal::addWantedOutputs, DerivationGoal::haveDerivation,
DerivationGoal::outputsSubstituted, DerivationGoal::repairClosure,
DerivationGoal::inputsRealised, DerivationGoal::tryToBuild,
DerivationGoal::buildDone, DerivationGoal::tryBuildHook,
DerivationGoal::startBuilder, DerivationGoal::runChild,
parseReferenceSpecifiers, DerivationGoal::registerOutputs,
DerivationGoal::checkPathValidity, SubstitutionGoal::tryNext,
SubstitutionGoal::referencesValid, Worker::removeGoal,
Worker::childTerminated, Worker::run, Worker::waitForInput): Use range-based
‘for’ instead of macro ‘foreach’.
* nix/libstore/derivations.cc (writeDerivation, unparseDerivation,
hashDerivationModulo): Likewise.
* nix/libstore/gc.cc (addAdditionalRoots, LocalStore::deletePathRecursive,
LocalStore::canReachRoot, LocalStore::collectGarbage): Likewise.
* nix/libstore/globals.cc (Settings::pack): Likewise.
* nix/libstore/local-store.cc (checkDerivationOutputs, queryValidPaths,
querySubstitutablePaths, querySubstitutablePathInfos, registerValidPaths, verifyStore,
verifyPath): Likewise.
* nix/libstore/misc.cc (computeFSClosure, dfsVisit, topoSortPaths): Likewise.
* nix/libstore/optimise-store.cc (LocalStore::optimisePath_, LocalStore::optimiseStore): Likewise.
* nix/libstore/pathlocks.cc (PathLocks::lockPaths, PathLocks::~PathLocks): Likewise.
* nix/libstore/references.cc (search, scanForReferences): Likewise.
* nix/libstore/store-api.cc (checkStoreName, computeStorePathForText,
StoreAPI::makeValidityRegistration, showPaths, readStorePaths): Likewise.
* nix/libutil/serialise.cc (writeStrings): Likewise.
* nix/libutil/util.cc (concatStringsSep): Likewise.
* nix/nix-daemon/nix-daemon.cc (performOp): Likewise.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'nix'.</title>
<updated>2015-07-02T22:30:55+00:00</updated>
<author>
<name>Ludovic Courtès</name>
<email>ludo@gnu.org</email>
</author>
<published>2015-07-02T21:37:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.vineetk.net/guix/commit/?id=322eeb87d0e5bb608ae1c176611a50297c93cbe8'/>
<id>322eeb87d0e5bb608ae1c176611a50297c93cbe8</id>
<content type='text'>
This is a squashed commit of the following:

commit 0dccab9f417b406f5d4aedc81900fc7b2f16c9f6
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
Date:   Thu Jul 2 00:30:16 2015 +0200

    Typo

commit 2cd28517b13524c242c7758783b0b2d8250fdded
Author: Ludovic Courtès &lt;ludo@gnu.org&gt;
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
    &lt;http://bugs.gnu.org/18994&gt;) 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 &amp;at(0) to data() and removed tabs - Eelco]

commit 6e38685ef65284093df79ebe7378bac33b0e7e5d
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
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 &lt;eelco.dolstra@logicblox.com&gt;
Date:   Mon Jun 22 15:54:55 2015 +0200

    Use posix_fallocate to create /nix/var/nix/db/reserved

commit 4e5ab98d6d14f8b0e3bd1d77b2f4f2354e7a49a8
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
Date:   Mon Jun 22 15:47:40 2015 +0200

    Make /nix/var/nix/db/reserved bigger

    Issue #564.

commit 60bda60fc06135aa97a93301b1a9e2270768f5b3
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
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 &lt;eelco.dolstra@logicblox.com&gt;
Date:   Thu Jul 2 22:51:33 2015 +0200

    Use std::vector::data()

commit 2459458bc8257734ca78cb7a2db3df20bd730ec0
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
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.
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This is a squashed commit of the following:

commit 0dccab9f417b406f5d4aedc81900fc7b2f16c9f6
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
Date:   Thu Jul 2 00:30:16 2015 +0200

    Typo

commit 2cd28517b13524c242c7758783b0b2d8250fdded
Author: Ludovic Courtès &lt;ludo@gnu.org&gt;
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
    &lt;http://bugs.gnu.org/18994&gt;) 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 &amp;at(0) to data() and removed tabs - Eelco]

commit 6e38685ef65284093df79ebe7378bac33b0e7e5d
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
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 &lt;eelco.dolstra@logicblox.com&gt;
Date:   Mon Jun 22 15:54:55 2015 +0200

    Use posix_fallocate to create /nix/var/nix/db/reserved

commit 4e5ab98d6d14f8b0e3bd1d77b2f4f2354e7a49a8
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
Date:   Mon Jun 22 15:47:40 2015 +0200

    Make /nix/var/nix/db/reserved bigger

    Issue #564.

commit 60bda60fc06135aa97a93301b1a9e2270768f5b3
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
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 &lt;eelco.dolstra@logicblox.com&gt;
Date:   Thu Jul 2 22:51:33 2015 +0200

    Use std::vector::data()

commit 2459458bc8257734ca78cb7a2db3df20bd730ec0
Author: Eelco Dolstra &lt;eelco.dolstra@logicblox.com&gt;
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.
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge commit a1dd396cc02922372314c35c8035a38bfeea08df of branch 'nix'.</title>
<updated>2015-01-04T22:27:34+00:00</updated>
<author>
<name>Ludovic Courtès</name>
<email>ludo@gnu.org</email>
</author>
<published>2015-01-04T22:27:34+00:00</published>
<link rel='alternate' type='text/html' href='https://git.vineetk.net/guix/commit/?id=15ddeff532b517843668eef8f615838d15b4f75c'/>
<id>15ddeff532b517843668eef8f615838d15b4f75c</id>
<content type='text'>
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'nix' into 'master'.</title>
<updated>2014-12-19T21:47:37+00:00</updated>
<author>
<name>Ludovic Courtès</name>
<email>ludo@gnu.org</email>
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<published>2014-12-17T22:00:42+00:00</published>
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