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2009-03-30 * Make the poll interval configurable.Eelco Dolstra1-2/+2
2009-03-29 * With `--max-jobs 0', print a nicer error message than "AssertionEelco Dolstra1-1/+5
`!awake.empty()' failed."
2009-03-29 * Use polling to wait for a remote build slot when using a build hookEelco Dolstra1-31/+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 inEelco Dolstra3-89/+50
one pass. This halves the amount of I/O.
2009-03-28 * Don't use the non-standard __gnu_cxx::stdio_filebuf class.Eelco Dolstra2-33/+17
2009-03-28 * Simplify communication with the hook a bit (don't use fileEelco Dolstra3-70/+49
descriptors 3/4, just use stdin/stderr).
2009-03-28 * The `fixedOutput' variable didn't get initialised when using a buildEelco Dolstra1-5/+6
hook, causing negative caching to fail randomly.
2009-03-27 * Create /nix/store if it doesn't exist.Eelco Dolstra1-0/+2
2009-03-26 * Don't use ULLONG_MAX in maxFreed - use 0 to mean "no limit".Eelco Dolstra4-10/+8
18446744073709551615ULL breaks on GCC 3.3.6 (`integer constant is too large for "long" type').
2009-03-25 * Negative caching, i.e. caching of build failures. Disabled byEelco Dolstra3-6/+79
default. This is mostly useful for Hydra.
2009-03-24 * Doh.Eelco Dolstra1-1/+1
2009-03-24 (no commit message)Eelco Dolstra1-1/+1
2009-03-23 * Shut up a GCC warning.Eelco Dolstra1-2/+2
2009-03-23 * No longer block while waiting for a lock on a store path. InsteadEelco Dolstra5-28/+85
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 Dolstra1-136/+85
2009-03-22 * Better error message when nix-store --import is applied to garbageEelco Dolstra1-1/+1
(previously it would likely say "implementation cannot deal with > 32-bit integers").
2009-03-22 * NAR archives: handle files larger than 2^32 bytes. Previously itEelco Dolstra6-17/+47
would just silently store only (fileSize % 2^32) bytes. * Use posix_fallocate if available when unpacking archives. * Provide a better error message when trying to unpack something that isn't a NAR archive.
2009-03-18 * Unify exportReferencesGraph and exportBuildReferencesGraph, and makeEelco Dolstra2-60/+36
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 buildEelco Dolstra1-145/+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 Dolstra1-22/+9
2009-03-06 (no commit message)Eelco Dolstra1-1/+1
2009-03-05 * Install some headers in the right location.Eelco Dolstra2-2/+6
2009-02-27 * Allow options from the Nix config file to be overriden from theEelco Dolstra3-0/+21
command line (e.g. "--option build-use-chroot true").
2009-02-16 * Release output locks as soon as possible, not when the destructor ofEelco Dolstra3-0/+14
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.
2009-02-05 added primop functions __isBool, __isString, __isIntMarc Weber1-0/+25
2009-02-02 * Build hooks: use nix-store --import. This prevents a redundantEelco Dolstra2-9/+27
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 Add the "addErrorContext" builtin to add more information in the stack trace.Nicolas Pierron1-0/+14
2009-01-27 * Make it compile on Debian 4.0 (which doesn't define PER_LINUX32_3GBEelco Dolstra1-1/+1
in sys/personality.h).
2009-01-13 * When using a build hook, distinguish between transient failuresEelco Dolstra1-4/+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 NixEelco Dolstra1-1/+18
installations. This is implemented using the personality() syscall, which causes uname to return "i686" in child processes.
2009-01-12 * Make Nix build with Bison 2.4.Eelco Dolstra1-0/+1
2008-12-16 * nix-store --verify: repair bad hash fields in the metadata file.Eelco Dolstra2-5/+16
2008-12-16 * Pass --use-atime / --max-atime to the daemon.Eelco Dolstra3-1/+9
2008-12-15 * Delete the chroot if it already exists (e.g. left over from anEelco Dolstra1-0/+1
interrupted build).
2008-12-12 * Put chroots in the Nix store. This ensures that we can create hardEelco Dolstra2-2/+14
links to the inputs.
2008-12-12 * Simplify deleting .lock files in /nix/store: just don't delete themEelco Dolstra2-31/+19
if they belong a path that's currently being built. This gets rid of some Cygwin-specific code.
2008-12-12 * Detect whether unshare() is available.Eelco Dolstra1-4/+1
2008-12-12 * We can't use string objects in signal handlers because they mightEelco Dolstra1-4/+4
allocate memory, which is verboten in signal handlers. This caused random failures in the test suite on Mac OS X (triggered by the spurious SIGPOLL signals on Mac OS X, which should also be fixed).
2008-12-12 * Use a PathSet for the chroot directories so that we don'tEelco Dolstra1-6/+7
accidentally bind-mount a directory twice.
2008-12-12 * Define _GNU_SOURCE. Hopefully this fixes the build on Debian 4.0Eelco Dolstra1-0/+3
(http://hydra.nixos.org/nixlog/384/1).
2008-12-11 * Don't provide the whole Nix store in the chroot, but only theEelco Dolstra1-10/+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, weEelco Dolstra4-9/+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 buildersEelco Dolstra1-1/+12
happy.
2008-12-11 * Do chroot builds in a private namespace. This means that all theEelco Dolstra1-134/+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.
2008-12-11 * Open the connection to the daemon lazily (on demand) so thatEelco Dolstra3-6/+38
read-only operations (like nix-env -qa) work properly when the daemon isn't running.
2008-12-04 * Build on Debian 4.0 (GCC 4.1.1).Eelco Dolstra1-1/+1
2008-12-04 * Propagate --max-silent-time to remote machines.Eelco Dolstra1-0/+1
2008-12-04 * When using build hooks, for any nix-store -r build operation, it isEelco Dolstra1-1/+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.
2008-12-04 * Don't ignore errors from writing to stderr. That way, whenEelco Dolstra1-5/+1
nix-store -r (or some other operation) is started via ssh, it will at least have a chance of terminating quickly when the connection is killed. Right now it just runs to completion, because it never notices that stderr is no longer connected to anything. Of course it would be better if sshd would just send a SIGHUP, but it doesn't (https://bugzilla.mindrot.org/show_bug.cgi?id=396).
2008-12-04 (no commit message)Eelco Dolstra1-3/+4