depot - monorepo for the virus lounge

Age	Commit message (Collapse)	Author	Files	Lines
2010-06-24	Include <cstring> to ensure that strcpy(), strlen(), and memset() are declared.	Peter Simons	1	-0/+2
	An "using namespace std" was added locally in those functions that refer to names from <cstring>. That is not pretty, but it's a very portable solution, because strcpy() and friends will be found in both the 'std' and in the global namespace.
2010-06-23	Added support for passing an (impure) NIX_BUILD_CORES variable to build ↵	Peter Simons	1	-0/+3
	expressions. This patch adds the configuration file variable "build-cores" and the command line argument "--cores". These settings specify the number of CPU cores to utilize for parallel building within a job, i.e. by passing an appropriate "-j" flag to GNU Make. The default value is 1, which means that parallel building is disabled. If the number of build cores is specified as 0 (synonymously: "guess" or "auto"), then the actual value is supposed to be auto-detected by builders at run-time, i.e by calling the nproc(1) utility from coreutils. The environment variable $NIX_BUILD_CORES is available to builders, but the contents of that variable does not influence the hash that goes into the $out store path, i.e. the number of build cores to be utilized can be changed at will without requiring any re-builds.
2010-06-01	* Turn build errors during evaluation into EvalErrors.	Eelco Dolstra	1	-1/+1

2010-03-11	Show the build user's group in /etc/group in chroots.	Ludovic Courtès	1	-0/+6
	* src/libstore/build.cc (nix::DerivationGoal::startBuilder): Create /etc/group showing the build user's group.
2010-03-11	Fix thinko in r20547.	Ludovic Courtès	1	-4/+4
	* src/libstore/build.cc (nix::DerivationGoal::startBuilder): Fix the GID of the build user in /etc/passwd.
2010-03-11	Clear supplementary groups of `nixbld' in /etc/passwd in chroots.	Ludovic Courtès	1	-4/+5
	* src/libstore/build.cc (nix::DerivationGoal::startBuilder): Don't display any supplementary groups for `nixbld' in /etc/passwd.
2010-02-03	* Revert r19797, and use a simpler solution: just don't monitor build	Eelco Dolstra	1	-10/+18
	hooks for silence. It's unnecessary because the remote nix-store command is already monitoring the real build.
2010-01-29	* Added an option "fsync-metadata" to fsync() changes to	Eelco Dolstra	1	-5/+5
	/nix/var/nix/db. * Removed the function writeStringToFile since it does (almost) the same thing as writeFile.
2009-12-17	* Include config.h before the C library headers, because it defines	Eelco Dolstra	1	-2/+2
	_FILE_OFFSET_BITS=64. Without it, functions like stat() fail on large file sizes. This happened with a Nix store on squashfs: $ nix-store --dump /tmp/mnt/46wzqnk4cbdwh1dclhrpqnnz1icak6n7-local-net-cmds > /dev/null error: getting attributes of path `/tmp/mnt/46wzqnk4cbdwh1dclhrpqnnz1icak6n7-local-net-cmds': Value too large for defined data type $ stat /tmp/mnt/46wzqnk4cbdwh1dclhrpqnnz1icak6n7-local-net-cmds File: `/tmp/mnt/46wzqnk4cbdwh1dclhrpqnnz1icak6n7-local-net-cmds' Size: 0 Blocks: 36028797018963968 IO Block: 1024 regular empty file (This is a bug in squashfs or mksquashfs, but it shouldn't cause Nix to fail.)
2009-12-09	* Give a better error message when trying to build something and	Eelco Dolstra	1	-0/+6
	readOnlyMode is set.
2009-10-22	* When building in a chroot, make a copy of a file if hard-linking	Eelco Dolstra	1	-2/+13
	fails. This is likely to happen after a `nix-store --optimise', because some files may have 32000 links (NIX-111).
2009-09-24	* Fix a build failure on Fedora 11. rename() needs <stdio.h>.	Eelco Dolstra	1	-0/+1

2009-09-23	* Create some state directories automatically as a convenience.	Eelco Dolstra	1	-0/+2

2009-09-23	* include wait.h for WEXITSTATUS	Rob Vermaas	1	-0/+1

2009-04-21	* Use foreach in a lot of places.	Eelco Dolstra	1	-40/+22

2009-04-15	* Don't cache transient build hook problems.	Eelco Dolstra	1	-6/+11

2009-03-31	* Do a substitution even if --max-jobs == 0.	Eelco Dolstra	1	-17/+22

2009-03-31	* Doh!	Eelco Dolstra	1	-1/+1

2009-03-30	* Make the poll interval configurable.	Eelco Dolstra	1	-2/+2

2009-03-29	* With `--max-jobs 0', print a nicer error message than "Assertion	Eelco Dolstra	1	-1/+5
	`!awake.empty()' failed."
2009-03-29	* Use polling to wait for a remote build slot when using a build hook	Eelco Dolstra	1	-31/+1
	(that is, call the build hook with a certain interval until it accepts the build). * build-remote.pl was totally broken: for all system types other than the local system type, it would send all builds to the first machine of the appropriate type.
2009-03-28	* Scan for references and compute the SHA-256 hash of the output in	Eelco Dolstra	1	-12/+8
	one pass. This halves the amount of I/O.
2009-03-28	* Simplify communication with the hook a bit (don't use file	Eelco Dolstra	1	-70/+16
	descriptors 3/4, just use stdin/stderr).
2009-03-28	* The `fixedOutput' variable didn't get initialised when using a build	Eelco Dolstra	1	-5/+6
	hook, causing negative caching to fail randomly.
2009-03-25	* Negative caching, i.e. caching of build failures. Disabled by	Eelco Dolstra	1	-6/+50
	default. This is mostly useful for Hydra.
2009-03-24	* Doh.	Eelco Dolstra	1	-1/+1

2009-03-24	(no commit message)	Eelco Dolstra	1	-1/+1

2009-03-23	* No longer block while waiting for a lock on a store path. Instead	Eelco Dolstra	1	-20/+67
	poll for it (i.e. if we can't acquire the lock, then let the main select() loop wait for at most a few seconds and then try again). This improves parallelism: if two nix-store processes are both trying to build a path at the same time, the second one shouldn't block; it should first see if it can build other goals. Also, it prevents the deadlocks that have been occuring in Hydra lately, where a process waits for a lock held by another process that's waiting for a lock held by the first. The downside is that polling isn't really elegant, but POSIX doesn't provide a way to wait for locks in a select() loop. The only solution would be to spawn a thread for each lock to do a blocking fcntl() and then signal the main thread, but that would require pthreads.
2009-03-22	* Refactoring.	Eelco Dolstra	1	-136/+85

2009-03-18	* Unify exportReferencesGraph and exportBuildReferencesGraph, and make	Eelco Dolstra	1	-48/+18
	sure that it works as expected when you pass it a derivation. That is, we have to make sure that all build-time dependencies are built, and that they are all in the input closure (otherwise remote builds might fail, for example). This is ensured at instantiation time by adding all derivations and their sources to inputDrvs and inputSrcs.
2009-03-18	* Acquire the locks on the output paths before trying to run the build	Eelco Dolstra	1	-145/+71
	hook. This fixes a problem with log files being partially or completely filled with 0's because another nix-store process truncates the log file. It should also be more efficient.
2009-03-17	* Cleanup.	Eelco Dolstra	1	-22/+9

2009-02-16	* Release output locks as soon as possible, not when the destructor of	Eelco Dolstra	1	-0/+5
	the DerivationGoal runs. Otherwise, if a goal is a top-level goal, then the lock won't be released until nix-store finishes. With --keep-going and lots of top-level goals, it's possible to run out of file descriptors (this happened sometimes in the build farm for Nixpkgs). Also, for failed derivation, it won't be possible to build it again until the lock is released. * Idem for locks on build users: these weren't released in a timely manner for failed top-level derivation goals. So if there were more than (say) 10 such failed builds, you would get an error about having run out of build users.
2009-02-02	* Build hooks: use nix-store --import. This prevents a redundant	Eelco Dolstra	1	-8/+19
	scan for runtime dependencies (i.e. the local machine shouldn't do a scan that the remote machine has already done). Also pipe directly into `nix-store --import': don't use a temporary file.
2009-01-27	* Make it compile on Debian 4.0 (which doesn't define PER_LINUX32_3GB	Eelco Dolstra	1	-1/+1
	in sys/personality.h).
2009-01-13	* When using a build hook, distinguish between transient failures	Eelco Dolstra	1	-4/+20
	(e.g. an SSH connection problem) and permanent failures (i.e. the builder failed). This matters to Hydra (it wants to know whether it makes sense to retry a build).
2009-01-12	* Support i686-linux builds directly on x86_64-linux Nix	Eelco Dolstra	1	-1/+18
	installations. This is implemented using the personality() syscall, which causes uname to return "i686" in child processes.
2008-12-15	* Delete the chroot if it already exists (e.g. left over from an	Eelco Dolstra	1	-0/+1
	interrupted build).
2008-12-12	* Put chroots in the Nix store. This ensures that we can create hard	Eelco Dolstra	1	-2/+9
	links to the inputs.
2008-12-12	* Detect whether unshare() is available.	Eelco Dolstra	1	-4/+1

2008-12-12	* Use a PathSet for the chroot directories so that we don't	Eelco Dolstra	1	-6/+7
	accidentally bind-mount a directory twice.
2008-12-12	* Define _GNU_SOURCE. Hopefully this fixes the build on Debian 4.0	Eelco Dolstra	1	-0/+3
	(http://hydra.nixos.org/nixlog/384/1).
2008-12-11	* Don't provide the whole Nix store in the chroot, but only the	Eelco Dolstra	1	-10/+44
	closure of the inputs. This really enforces that there can't be any undeclared dependencies on paths in the store. This is done by creating a fake Nix store and creating bind-mounts or hard-links in the fake store for all paths in the closure. After the build, the build output is moved from the fake store to the real store. TODO: the chroot has to be on the same filesystem as the Nix store for this to work, but this isn't enforced yet. (I.e. it only works currently if /tmp is on the same FS as /nix/store.)
2008-12-11	* Revert r13150: now that we use private namespaces for the chroot, we	Eelco Dolstra	1	-1/+1
	don't have to put the chroot in /nix/var/nix/chroots anymore. They're back in /tmp now.
2008-12-11	* Provide a minimal /etc/passwd in the chroot to keep some builders	Eelco Dolstra	1	-1/+12
	happy.
2008-12-11	* Do chroot builds in a private namespace. This means that all the	Eelco Dolstra	1	-134/+45
	bind-mounts we do are only visible to the builder process and its children. So accidentally doing "rm -rf" on the chroot directory won't wipe out /nix/store and other bind-mounted directories anymore. Also, the bind-mounts in the private namespace disappear automatically when the builder exits.
2008-12-04	* Propagate --max-silent-time to remote machines.	Eelco Dolstra	1	-0/+1

2008-12-04	* When using build hooks, for any nix-store -r build operation, it is	Eelco Dolstra	1	-1/+12
	necessary that at least one build hook doesn't return "postpone", otherwise nix-store will barf ("waiting for a build slot, yet there are no running children"). So inform the build hook when this is the case, so that it can start a build even when that would exceed the maximum load on a machine.
2008-11-14	* Restore SIGPIPE to SIG_DFL when running the builder. This prevents	Eelco Dolstra	1	-0/+13
	subtle and often hard-to-reproduce bugs where programs in pipes either barf with a "Broken pipe" message or not, depending on the exact timing conditions. This particularly happened in GNU M4 (and Bison, which uses M4).
2008-11-12	* Some somewhat ad hoc mechanism to allow the build farm to monitor	Eelco Dolstra	1	-5/+44
	build progress.