lix -

Age	Commit message (Collapse)	Author
2013-08-26	Fix typos, especially those that end up in the Nix manual	Ivan Kozik

2013-08-26	Fix personality switching from x86_64 to i686	Gergely Risko
	On Linux, Nix can build i686 packages even on x86_64 systems. It's not enough to recognize this situation by settings.thisSystem, we also have to consult uname(). E.g. we can be running on a i686 Debian with an amd64 kernel. In that situation settings.thisSystem is i686-linux, but we still need to change personality to i686 to make builds consistent.
2013-08-19	Store Nix integers as longs	Eelco Dolstra
	So on 64-bit systems, integers are now 64-bit. Fixes #158.
2013-08-14	Typo	Eelco Dolstra

2013-08-07	Respect MINSIGSTKSZ when allocating an alternative stack	Eelco Dolstra
	http://hydra.nixos.org/build/5663577
2013-08-07	Fix build on non-Linux	Eelco Dolstra
	http://hydra.nixos.org/build/5662914
2013-08-07	Run the daemon worker on the same CPU as the client	Eelco Dolstra
	On a system with multiple CPUs, running Nix operations through the daemon is significantly slower than "direct" mode: $ NIX_REMOTE= nix-instantiate '<nixos>' -A system real 0m0.974s user 0m0.875s sys 0m0.088s $ NIX_REMOTE=daemon nix-instantiate '<nixos>' -A system real 0m2.118s user 0m1.463s sys 0m0.218s The main reason seems to be that the client and the worker get moved to a different CPU after every call to the worker. This patch adds a hack to lock them to the same CPU. With this, the overhead of going through the daemon is very small: $ NIX_REMOTE=daemon nix-instantiate '<nixos>' -A system real 0m1.074s user 0m0.809s sys 0m0.098s
2013-08-06	Remove obsolete reference to ATerms	Eelco Dolstra

2013-08-02	In the profiler output, show function names (if available)	Eelco Dolstra

2013-08-02	Let the ordering operators also work on strings	Eelco Dolstra
	E.g. ‘"foo" < "bar"’ now works.
2013-08-02	Add comparison operators ‘<’, ‘<=’, ‘>’ and ‘>=’	Eelco Dolstra

2013-08-02	Add integer ‘-’, ‘*’ and ‘/’ operators	Eelco Dolstra

2013-08-02	Add a unary integer negation operator	Eelco Dolstra
	This allows saying "-1" instead of "builtins.sub 0 1".
2013-08-02	Overload the ‘+’ operator to support integer addition	Eelco Dolstra

2013-07-31	Make Env smaller	Eelco Dolstra
	Commit 20866a7031ca823055a221653b77986faa167329 added a ‘withAttrs’ field to Env, which is annoying because it makes every Env structure bigger and we allocate millions of them. E.g. NixOS evaluation took 18 MiB more. So this commit squeezes ‘withAttrs’ into values[0]. Probably should use a union...
2013-07-31	Don't use NULL	Eelco Dolstra

2013-07-31	Avoid thunks when a fromWith var can be looked up without evaluation	Shea Levy
	Signed-off-by: Shea Levy <shea@shealevy.com>
2013-07-31	Delay evaulation of `with` attrs until a variable lookup needs them	Shea Levy
	Evaluation of attribute sets is strict in the attribute names, which means immediate evaluation of `with` attribute sets rules out some potentially interesting use cases (e.g. where the attribute names of one set depend in some way on another but we want to bring those names into scope for some values in the second set). The major example of this is overridable self-referential package sets (e.g. all-packages.nix). With immediate `with` evaluation, the only options for such sets are to either make them non-recursive and explicitly use the name of the overridden set in non-overridden one every time you want to reference another package, or make the set recursive and use the `__overrides` hack. As shown in the test case that comes with this commit, though, delayed `with` evaluation allows a nicer third alternative. Signed-off-by: Shea Levy <shea@shealevy.com>
2013-07-30	Detect stack overflows	Eelco Dolstra
	Previously, if the Nix evaluator gets a stack overflow due to a deep or infinite recursion in the Nix expression, the user gets an unhelpful message ("Segmentation fault") that doesn't indicate that the problem is in the user's code rather than Nix itself. Now it prints: error: stack overflow (possible infinite recursion) This only works on x86_64-linux and i686-linux. Fixes #35.
2013-07-30	killUser: Don't let the child kill itself on Apple	Shea Levy
	The kill(2) in Apple's libc follows POSIX semantics, which means that kill(-1, SIGKILL) will kill the calling process too. Since nix has no way to distinguish between the process successfully killing everything and the process being killed by a rogue builder in that case, it can't safely conclude that killUser was successful. Luckily, the actual kill syscall takes a parameter that determines whether POSIX semantics are followed, so we can call that syscall directly and avoid the issue on Apple. Signed-off-by: Shea Levy <shea@shealevy.com>
2013-07-18	Revert "build-remote.pl: Enforce timeouts locally"	Eelco Dolstra
	This reverts commit 69b8f9980f39c14a59365a188b300a34d625a2cd. The timeout should be enforced remotely. Otherwise, if the garbage collector is running either locally or remotely, if will block the build or closure copying for some time. If the garbage collector takes too long, the build may time out, which is not what we want. Also, on heavily loaded systems, copying large paths to and from the remote machine can take a long time, also potentially resulting in a timeout.
2013-07-15	Allow bind-mounting regular files into the chroot	Shea Levy
	mount(2) with MS_BIND allows mounting a regular file on top of a regular file, so there's no reason to only bind directories. This allows finer control over just which files are and aren't included in the chroot without having to build symlink trees or the like. Signed-off-by: Shea Levy <shea@shealevy.com>
2013-07-12	Garbage collector: Don't follow symlinks arbitrarily	Eelco Dolstra
	Only indirect roots (symlinks to symlinks to the Nix store) are now supported.
2013-07-07	Leave `HAVE_HUP_NOTIFICATION' undefined on GNU/Hurd.	Ludovic Courtès

2013-06-20	Don't set $preferLocalBuild and $requiredSystemFeatures in builders	Eelco Dolstra
	With C++ std::map, doing a comparison like ‘map["foo"] == ...’ has the side-effect of adding a mapping from "foo" to the empty string if "foo" doesn't exist in the map. So we ended up setting some environment variables by accident.
2013-06-20	Don't substitute derivations that have preferLocalBuild set	Eelco Dolstra
	In particular this means that "trivial" derivations such as writeText are not substituted, reducing the number of GET requests to the binary cache by about 200 on a typical NixOS configuration.
2013-06-20	Increase SQLite's auto-checkpoint interval	Eelco Dolstra
	Common operations like instantiating a NixOS system config no longer fitted in 8192 pages, leading to more fsyncs. So increase this limit.
2013-06-20	Disable the copy-from-other-stores substituter	Eelco Dolstra
	This substituter basically cannot work reliably since we switched to SQLite, since SQLite databases may need write access to open them even just for reading (and in WAL mode they always do).
2013-06-20	Don't keep "disabled" substituters running	Eelco Dolstra
	For instance, it's pointless to keep copy-from-other-stores running if there are no other stores, or download-using-manifests if there are no manifests. This also speeds things up because we don't send queries to those substituters.
2013-06-13	Allow hard links between the outputs of a derivation	Eelco Dolstra

2013-06-13	Fix a security bug in hash rewriting	Eelco Dolstra
	Before calling dumpPath(), we have to make sure the files are owned by the build user. Otherwise, the build could contain a hard link to (say) /etc/shadow, which would then be read by the daemon and rewritten as a world-readable file. This only affects systems that don't have hard link restrictions enabled.
2013-06-13	Fix assertion failure in canonicalisePathMetaData() after hash rewriting	Eelco Dolstra
	The assertion in canonicalisePathMetaData() failed because the ownership of the path already changed due to the hash rewriting. The solution is not to check the ownership of rewritten paths. Issue #122.
2013-06-13	computeFSClosure: Only process the missing/corrupt paths	Eelco Dolstra
	Issue #122.
2013-06-13	In repair mode, update the hash of rebuilt paths	Eelco Dolstra
	Otherwise subsequent invocations of "--repair" will keep rebuilding the path. This only happens if the path content differs between builds (e.g. due to timestamps).
2013-06-12	nix-daemon: Trust options like binary-caches when the client is root	Eelco Dolstra
	Fixes #127.
2013-06-07	Remove obsolete EOF checks	Eelco Dolstra

2013-06-07	Process stderr from substituters while doing have/info queries	Eelco Dolstra

2013-06-07	Buffer reads from the substituter	Eelco Dolstra
	This greatly reduces the number of system calls.
2013-05-23	nix-store --export: Export paths in topologically sorted order	Eelco Dolstra
	Fixes #118.
2013-05-16	Show function names in error messages	Eelco Dolstra
	Functions in Nix are anonymous, but if they're assigned to a variable/attribute, we can use the variable/attribute name in error messages, e.g. while evaluating `concatMapStrings' at `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/pkgs/lib/strings.nix:18:25': ...
2013-05-16	Show which function argument was unexpected	Eelco Dolstra
	Fixes #116.
2013-05-16	Shut up a compiler warning	Eelco Dolstra

2013-05-10	In trace messages, don't print the output path	Eelco Dolstra
	This doesn't work if there is no output named "out". Hydra didn't use it anyway.
2013-05-09	Communicate build timeouts to Hydra	Eelco Dolstra

2013-05-09	build-remote.pl: Enforce timeouts locally	Eelco Dolstra
	Don't pass --timeout / --max-silent-time to the remote builder. Instead, let the local Nix process terminate the build if it exceeds a timeout. The remote builder will be killed as a side-effect. This gives better error reporting (since the timeout message from the remote side wasn't properly propagated) and handles non-Nix problems like SSH hangs.
2013-05-01	Don't let stderr writes in substituters cause a deadlock	Eelco Dolstra

2013-04-26	addAdditionalRoots(): Check each path only once	Eelco Dolstra

2013-04-23	Fix --timeout	Eelco Dolstra
	I'm not sure if it has ever worked correctly. The line "lastWait = after;" seems to mean that the timer was reset every time a build produced log output. Note that the timeout is now per build, as documented ("the maximum number of seconds that a builder can run").
2013-04-23	Nix daemon: respect build timeout from the client	Eelco Dolstra

2013-04-04	Complain if /homeless-shelter exists	Eelco Dolstra