Commit graph

57 commits

Author SHA1 Message Date
Eelco Dolstra 3a87163b24 * Shut up a GCC warning. 2009-03-23 13:52:52 +00:00
Eelco Dolstra 60ec75048a * Pass --use-atime / --max-atime to the daemon. 2008-12-16 12:23:35 +00:00
Eelco Dolstra 9122dcecbb * We can't use string objects in signal handlers because they might
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 12:59:27 +00:00
Eelco Dolstra 82ae85de27 * addToStore() in nix-worker: don't write the NAR dump received from
the client to a temporary directory, as that is highly inefficient.
2008-12-03 18:05:14 +00:00
Eelco Dolstra cdee317419 * Backwards compatibility. 2008-12-03 17:02:29 +00:00
Eelco Dolstra ff762fb499 * Pass HashType values instead of strings. 2008-12-03 16:10:17 +00:00
Eelco Dolstra 64519cfd65 * Unify the treatment of sources copied to the store, and recursive
SHA-256 outputs of fixed-output derivations.  I.e. they now produce
  the same store path:

  $ nix-store --add x
  /nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x

  $ nix-store --add-fixed --recursive sha256 x
  /nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x

  the latter being the same as the path that a derivation

    derivation {
      name = "x";
      outputHashAlgo = "sha256";
      outputHashMode = "recursive";
      outputHash = "...";
      ...
    };

  produces.

  This does change the output path for such fixed-output derivations.
  Fortunately they are quite rare.  The most common use is fetchsvn
  calls with SHA-256 hashes.  (There are a handful of those is
  Nixpkgs, mostly unstable development packages.)
  
* Documented the computation of store paths (in store-api.cc).
2008-12-03 15:06:30 +00:00
Eelco Dolstra a55113411f * Nix daemon: reload the configuration file after forking (NIX-100). 2008-11-20 12:25:11 +00:00
Eelco Dolstra 3f4ed681c2 * Prevent zombies. Previous the SIGCHLD handler only reaped one
zombie at a time, so if multiple children died before the handler
  got to run, some of them would not be cleaned up.
2008-11-14 16:50:01 +00:00
Eelco Dolstra a519bb0635 * Some somewhat ad hoc mechanism to allow the build farm to monitor
build progress.
2008-11-12 11:08:27 +00:00
Eelco Dolstra 96598e7b06 * Pass the --no-build-output flag to the daemon. 2008-11-11 15:11:10 +00:00
Eelco Dolstra 03427e76f1 * querySubstitutablePathInfo: work properly when run via the daemon.
* --dry-run: print the paths that we don't know how to build/substitute.
2008-08-04 11:44:50 +00:00
Eelco Dolstra a72709afd8 * Some refactoring: put the GC options / results in separate structs.
* The garbage collector now also prints the number of blocks freed.
2008-06-18 09:34:17 +00:00
Eelco Dolstra f351834f77 * nix-worker: clean up the temporary root for the worker processes
in /nix/var/nix/temproots.
2008-06-14 16:03:02 +00:00
Eelco Dolstra b0e92f6d47 * Merged the no-bdb branch (-r10900:HEAD
https://svn.nixos.org/repos/nix/nix/branches/no-bdb).
2008-06-09 13:52:45 +00:00
Eelco Dolstra 72034ab35d * sockaddr_un doesn't allow path names of more than 108 characters.
This isn't usually a problem, except that it causes tests to fail
  when performed in a directory with a very long path name.  So chdir
  to the socket directory and use a relative path name.
2008-04-09 05:57:01 +00:00
Eelco Dolstra 98968fbb63 * Disable the don't-run-as-root sanity check because it breaks RPM
builds (which are done as root...).
2008-03-20 18:15:20 +00:00
Eelco Dolstra c370755583 * Flag `--no-build-hook' to disable distributed builds.
* queryDeriver in daemon mode: don't barf if the other side returns an
  empty string (which means there is no deriver).
2007-11-16 16:15:26 +00:00
Eelco Dolstra f3441e6122 * Pass various options to the worker so that flags like -K or -j work
in multi-user Nix (NIX-72).
* Client/worker: exchange a protocol version number for future
  compatibility.
2007-09-18 09:11:20 +00:00
Eelco Dolstra 0d65fc08e2 * Create the Nix daemon socket in a separate directory
(/nix/var/nix/daemon-socket).  This allows access to the Nix daemon
  to be restricted by setting the mode/ownership on that directory as
  desired, e.g.

    $ chmod 770 /nix/var/nix/daemon-socket
    $ chown root.wheel /nix/var/nix/daemon-socket

  to allow only users in the wheel group to use Nix.

  Setting the ownership on a socket is much trickier, since the socket
  must be deleted and recreated every time the daemon is started
  (which would require additional Nix configuration file directives to
  specify the mode/ownership, and wouldn't support arbitrary ACLs),
  some BSD variants appear to ignore permissions on sockets, and it's
  not clear whether the umask is respected on every platform when
  creating sockets.
2007-08-30 09:50:44 +00:00
Eelco Dolstra 6d1a1191b0 * Support queryDeriver() in multi-user installations. 2007-06-12 16:53:44 +00:00
Eelco Dolstra 17b506c0c7 * Handle ECONNRESET from the client. Also, don't abort() if there are
unexpected conditions in the SIGPOLL handler, since that messes up
  the Berkeley DB environment (which a client must never be able to
  trigger).
2007-03-28 15:46:21 +00:00
Eelco Dolstra ddde8e2f32 * Handle EINTR in select(). 2007-02-22 18:15:29 +00:00
Eelco Dolstra bdadb98de8 * `nix-store --import' now also works in remote mode. The worker
always requires a signature on the archive.  This is to ensure that
  unprivileged users cannot add Trojan horses to the Nix store.
2007-02-21 17:34:02 +00:00
Eelco Dolstra 0f5da8a83c * Support exportPath() in remote mode. 2007-02-21 16:34:00 +00:00
Eelco Dolstra a3e6415ba8 * New primop builtins.filterSource, which can be used to filter files
from a source directory.  All files for which a predicate function
  returns true are copied to the store.  Typical example is to leave
  out the .svn directory:

    stdenv.mkDerivation {
      ...
      src = builtins.filterSource
        (path: baseNameOf (toString path) != ".svn")
        ./source-dir;
      # as opposed to
      #   src = ./source-dir;
    }

  This is important because the .svn directory influences the hash in
  a rather unpredictable and variable way.
2006-12-12 23:05:01 +00:00
Eelco Dolstra e24d0201c2 * Doh! 2006-12-07 22:07:05 +00:00
Eelco Dolstra 4ca01065c3 * Rename all those main.cc files. 2006-12-07 20:47:30 +00:00
Eelco Dolstra ef281b93c2 * Fix the safety check. 2006-12-06 20:18:29 +00:00
Eelco Dolstra 6f0d050324 * Tricky: child processes should not send data to the client since
that might mess up the protocol.  And besides, the socket file
  descriptor is probably closed.
2006-12-05 18:21:16 +00:00
Eelco Dolstra 8d1854c3f1 * Oops! In daemon mode, we can't run as root either if build-users is empty. 2006-12-05 17:44:19 +00:00
Eelco Dolstra 99655245ae * Use an explicit handler for SIGCHLD, since SIG_IGN doesn't do the
right thing on FreeBSD 4 (it leaves zombies).
2006-12-05 17:21:42 +00:00
Eelco Dolstra c808e6252f * Ugly hack to handle spurious SIGPOLLs. 2006-12-05 15:36:31 +00:00
Eelco Dolstra fd4a9db91f * Some renaming. 2006-12-05 14:15:51 +00:00
Eelco Dolstra a9c4f66cfb * Allow unprivileged users to run the garbage collector and to do
`nix-store --delete'.  But unprivileged users are not allowed to
  ignore liveness.
* `nix-store --delete --ignore-liveness': ignore the runtime roots as
  well.
2006-12-05 02:18:46 +00:00
Eelco Dolstra 29cf434a35 * The determination of the root set should be made by the privileged
process, so forward the operation.
* Spam the user about GC misconfigurations (NIX-71).
* findRoots: skip all roots that are unreadable - the warnings with
  which we spam the user should be enough.
2006-12-05 01:31:45 +00:00
Eelco Dolstra 74033a844f * Add indirect root registration to the protocol so that unprivileged
processes can register indirect roots.  Of course, there is still
  the problem that the garbage collector can only read the targets of
  the indirect roots when it's running as root...
2006-12-04 23:29:16 +00:00
Eelco Dolstra 0d40f6d7bb * Not every OS knows about SIGPOLL. 2006-12-04 22:58:44 +00:00
Eelco Dolstra 40c3529909 * Handle exceptions and stderr for all protocol functions.
* SIGIO -> SIGPOLL (POSIX calls it that).
* Use sigaction instead of signal to register the SIGPOLL handler.
  Sigaction is better defined, and a handler registered with signal
  appears not to interrupt fcntl(..., F_SETLKW, ...), which is bad.
2006-12-04 17:55:14 +00:00
Eelco Dolstra 0130ef88ea * Daemon mode (`nix-worker --daemon'). Clients connect to the server
via the Unix domain socket in /nix/var/nix/daemon.socket.  The
  server forks a worker process per connection.
* readString(): use the heap, not the stack.
* Some protocol fixes.
2006-12-04 17:17:13 +00:00
Eelco Dolstra 1e16d20655 * Install the worker in bindir, not libexecdir.
* Allow the worker path to be overriden through the NIX_WORKER
  environment variable.
2006-12-04 13:09:16 +00:00
Eelco Dolstra f4279bcde0 * Don't run setuid root when build-users is empty.
* Send startup errors to the client.
2006-12-03 16:25:19 +00:00
Eelco Dolstra a9f9241054 * Handle a subtle race condition: the client closing the socket
between the last worker read/write and the enabling of the signal
  handler.
2006-12-03 03:16:27 +00:00
Eelco Dolstra 3ed9e4ad9b * Some hardcore magic to handle asynchronous client disconnects.
The problem is that when we kill the client while the worker is
  building, and the builder is not writing anything to stderr, then
  the worker never notice that the socket is closed on the other side,
  so it just continues indefinitely.  The solution is to catch SIGIO,
  which is sent when the far side of the socket closes, and simulate
  an normal interruption.  Of course, SIGIO is also sent every time
  the client sends data over the socket, so we only enable the signal
  handler when we're not expecting any data...
2006-12-03 03:03:36 +00:00
Eelco Dolstra 7951c3c546 * Some hackery to propagate the worker's stderr and exceptions to the
client.
2006-12-03 02:08:13 +00:00
Eelco Dolstra 714fa24cfb * Run the worker in a separate session to prevent terminal signals
from interfering.
2006-12-03 00:52:27 +00:00
Eelco Dolstra e25fad691a * Move addTempRoot() to the store API, and add another function
syncWithGC() to allow clients to register GC roots without needing
  write access to the global roots directory or the GC lock.
2006-12-02 16:41:36 +00:00
Eelco Dolstra 30bf547f4f * Doh. 2006-12-02 15:46:17 +00:00
Eelco Dolstra 8ba5d32769 * Remove queryPathHash().
* Help for nix-worker.
2006-12-02 14:27:24 +00:00
Eelco Dolstra a824d58b56 * Merge addToStore and addToStoreFixed.
* addToStore now adds unconditionally, it doesn't use readOnlyMode.
  Read-only operation is up to the caller (who can call
  computeStorePathForPath).
2006-12-01 20:51:18 +00:00