Commit graph

597 commits

Author SHA1 Message Date
Eelco Dolstra ae6bf87273 * `nix-store --gc --print-roots': also print the path of the actual
root symlink, not just its target.  E.g.:

  /nix/var/nix/profiles/system-99-link -> /nix/store/76kwf88657nq7wgk1hx3l1z5q91zb9wd-system
2009-11-23 17:23:12 +00:00
Eelco Dolstra c364d5d1e3 * Made the garbage collector a lot faster. It no longer computes the
complete set of live and dead paths before starting the actual
  deletion, but determines liveness on demand.  I.e. for any path in
  the store, it first tries to delete all the referrers, and then the
  path itself.  This means that the collector can start deleting paths
  almost immediately.
2009-11-23 16:34:24 +00:00
Eelco Dolstra 8824d60fe5 * Remove the --use-atime / --max-atime garbage collector flags. Many
(Linux) machines no longer maintain the atime because it's too
  expensive, and on the machines where --use-atime is useful (like the
  buildfarm), reading the atimes on the entire Nix store takes way too
  much time to make it practical.
2009-11-20 17:12:38 +00:00
Eelco Dolstra 327a232c85 * Remove support for old (before Nix 0.12pre12020) databases. 2009-11-06 01:15:44 +00:00
Eelco Dolstra 8520542071 * When building in a chroot, make a copy of a file if hard-linking
fails.  This is likely to happen after a `nix-store --optimise',
  because some files may have 32000 links (NIX-111).
2009-10-22 08:28:33 +00:00
Eelco Dolstra 6b9f6b0222 * Remove a prototype for a function that no longer exists. 2009-10-22 08:12:38 +00:00
Sander van der Burg 53a4981fa2 Added optional parameter which adds -lnsl -lsocket to make the Nix package manager work on OpenSolaris 2009-10-08 14:50:37 +00:00
Eelco Dolstra c7057fc1f2 * And some more. 2009-09-24 07:39:55 +00:00
Eelco Dolstra 193f59e077 * Fix a build failure on Fedora 11. rename() needs <stdio.h>. 2009-09-24 07:21:29 +00:00
Eelco Dolstra 676e07902e * Darwin hack. 2009-09-23 18:04:55 +00:00
Eelco Dolstra 64e89980e8 * Create some state directories automatically as a convenience. 2009-09-23 17:05:51 +00:00
Rob Vermaas 48b58617e9 * include wait.h for WEXITSTATUS 2009-09-23 12:57:15 +00:00
Eelco Dolstra 14bc3ce3d6 * Canonicalise timestamps in the Nix store to 1 (1970-01-01 00:00:01
UTC) rather than 0 (00:00:00).  1 is a better choice because some
  programs use 0 as a special value.  For instance, the Template
  Toolkit uses a timestamp of 0 to denote the non-existence of a file,
  so it barfs on files in the Nix store (see
  template-toolkit-nix-store.patch in Nixpkgs).  Similarly, Maya 2008
  fails to load script directories with a timestamp of 0 and can't be
  patched because it's closed source.

  This will also shut up those "implausibly old time stamp" GNU tar
  warnings.
2009-06-13 16:30:58 +00:00
Eelco Dolstra d5eab2fc82 * Use foreach in a lot of places. 2009-04-21 11:52:16 +00:00
Eelco Dolstra 8f1bf28505 * nix-store --verify: don't bail out if a referenced path is missing.
(It can't fix it though.)
2009-04-21 11:06:27 +00:00
Eelco Dolstra 4e646b0ddb * Fix a few "comparison is always false/true due to limited range of
data type" warnings on 64-bit platforms.  The one in parser.y is
  likely to be a real bug.
2009-04-16 12:03:17 +00:00
Eelco Dolstra dfb863f333 * Don't cache transient build hook problems. 2009-04-15 06:25:02 +00:00
Eelco Dolstra 351bf658f9 * Do a substitution even if --max-jobs == 0. 2009-03-31 21:14:07 +00:00
Eelco Dolstra cff2b2a13a * Doh! 2009-03-31 15:50:03 +00:00
Eelco Dolstra 160a60d663 2009-03-30 19:35:55 +00:00
Eelco Dolstra 805144b705 * Make the poll interval configurable. 2009-03-30 11:34:03 +00:00
Eelco Dolstra 7377195297 * With `--max-jobs 0', print a nicer error message than "Assertion
`!awake.empty()' failed."
2009-03-29 18:06:00 +00:00
Eelco Dolstra 737423a89c * Use polling to wait for a remote build slot when using a build hook
(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.
2009-03-29 18:00:45 +00:00
Eelco Dolstra 6e946c8e72 * Scan for references and compute the SHA-256 hash of the output in
one pass.  This halves the amount of I/O.
2009-03-28 20:51:33 +00:00
Eelco Dolstra c7152c8f97 * Don't use the non-standard __gnu_cxx::stdio_filebuf class. 2009-03-28 19:41:53 +00:00
Eelco Dolstra 3a2bbe7f8a * Simplify communication with the hook a bit (don't use file
descriptors 3/4, just use stdin/stderr).
2009-03-28 19:29:55 +00:00
Eelco Dolstra f54e800366 * The `fixedOutput' variable didn't get initialised when using a build
hook, causing negative caching to fail randomly.
2009-03-28 16:12:27 +00:00
Eelco Dolstra cb85bc396e * Create /nix/store if it doesn't exist. 2009-03-27 14:19:04 +00:00
Eelco Dolstra 5dd8fb2069 * Don't use ULLONG_MAX in maxFreed - use 0 to mean "no limit".
18446744073709551615ULL breaks on GCC 3.3.6 (`integer constant is
  too large for "long" type').
2009-03-26 11:02:07 +00:00
Eelco Dolstra 92f525ecf4 * Negative caching, i.e. caching of build failures. Disabled by
default.  This is mostly useful for Hydra.
2009-03-25 21:05:42 +00:00
Eelco Dolstra a046858a22 * Doh. 2009-03-24 23:40:24 +00:00
Eelco Dolstra 12c8c64efa 2009-03-24 14:07:37 +00:00
Eelco Dolstra cacff1be88 * No longer block while waiting for a lock on a store path. Instead
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.
2009-03-23 01:05:54 +00:00
Eelco Dolstra 58969fa2bf * Refactoring. 2009-03-22 23:53:05 +00:00
Eelco Dolstra 77d272623f * NAR archives: handle files larger than 2^32 bytes. Previously it
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.
2009-03-22 17:36:43 +00:00
Eelco Dolstra 2897286487 * Unify exportReferencesGraph and exportBuildReferencesGraph, and make
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 17:36:42 +00:00
Eelco Dolstra c183ee5c79 * Acquire the locks on the output paths before trying to run the build
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.
2009-03-18 14:48:42 +00:00
Eelco Dolstra 33ecb42991 * Cleanup. 2009-03-17 11:42:55 +00:00
Eelco Dolstra 60cb7de336 * Allow options from the Nix config file to be overriden from the
command line (e.g. "--option build-use-chroot true").
2009-02-27 11:04:41 +00:00
Eelco Dolstra 824b154ce8 * Release output locks as soon as possible, not when the destructor of
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.
2009-02-16 09:24:20 +00:00
Eelco Dolstra b682fae9d9 * Build hooks: use nix-store --import. This prevents a redundant
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.
2009-02-02 17:24:10 +00:00
Eelco Dolstra 061141e632 * Make it compile on Debian 4.0 (which doesn't define PER_LINUX32_3GB
in sys/personality.h).
2009-01-27 13:36:59 +00:00
Eelco Dolstra 019176137f * When using a build hook, distinguish between transient failures
(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).
2009-01-13 11:39:09 +00:00
Eelco Dolstra c504d90c11 * Support i686-linux builds directly on x86_64-linux Nix
installations.  This is implemented using the personality() syscall,
  which causes uname to return "i686" in child processes.
2009-01-12 16:30:32 +00:00
Eelco Dolstra 8fce03e0ad * nix-store --verify: repair bad hash fields in the metadata file. 2008-12-16 13:28:18 +00:00
Eelco Dolstra 60ec75048a * Pass --use-atime / --max-atime to the daemon. 2008-12-16 12:23:35 +00:00
Eelco Dolstra 6f6bb1fdea * Delete the chroot if it already exists (e.g. left over from an
interrupted build).
2008-12-15 23:55:11 +00:00
Eelco Dolstra 92cb7c4dfe * Put chroots in the Nix store. This ensures that we can create hard
links to the inputs.
2008-12-12 17:14:57 +00:00
Eelco Dolstra 0008b0006d * Simplify deleting .lock files in /nix/store: just don't delete them
if they belong a path that's currently being built.  This gets rid
  of some Cygwin-specific code.
2008-12-12 17:03:18 +00:00
Eelco Dolstra 2b70a8e7c9 * Detect whether unshare() is available. 2008-12-12 13:41:36 +00:00
Eelco Dolstra 6776a52bb3 * Use a PathSet for the chroot directories so that we don't
accidentally bind-mount a directory twice.
2008-12-12 11:49:42 +00:00
Eelco Dolstra d86bd22d24 * Define _GNU_SOURCE. Hopefully this fixes the build on Debian 4.0
(http://hydra.nixos.org/nixlog/384/1).
2008-12-12 10:20:19 +00:00
Eelco Dolstra ac5478eb52 * Don't provide the whole Nix store in the chroot, but only the
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 18:57:10 +00:00
Eelco Dolstra 652817046b * Revert r13150: now that we use private namespaces for the chroot, we
don't have to put the chroot in /nix/var/nix/chroots anymore.
  They're back in /tmp now.
2008-12-11 17:52:34 +00:00
Eelco Dolstra 5a569509b4 * Provide a minimal /etc/passwd in the chroot to keep some builders
happy.
2008-12-11 17:44:02 +00:00
Eelco Dolstra 7c54f1603f * Do chroot builds in a private namespace. This means that all the
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 17:00:12 +00:00
Eelco Dolstra 07cdfb09fb * Open the connection to the daemon lazily (on demand) so that
read-only operations (like nix-env -qa) work properly when the
  daemon isn't running.
2008-12-11 14:30:25 +00:00
Eelco Dolstra a0766eca27 * Build on Debian 4.0 (GCC 4.1.1). 2008-12-04 21:07:29 +00:00
Eelco Dolstra 9ac3f5df9c * Propagate --max-silent-time to remote machines. 2008-12-04 16:51:16 +00:00
Eelco Dolstra 909fbb9de1 * When using build hooks, for any nix-store -r build operation, it is
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 14:29:41 +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 ff762fb499 * Pass HashType values instead of strings. 2008-12-03 16:10:17 +00:00
Eelco Dolstra 1307b22223 * Made addToStore() a lot more efficient: it no longer reads the path
being copied 3 times in the worst case.  It doesn't run in constant space,
  but it didn't do that anyway.
2008-12-03 15:51:17 +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 e13da525a7 * Files in the info directory starting with "." are temporary files
and don't indicate path validity.
2008-11-19 16:27:07 +00:00
Eelco Dolstra 6fedb7aa0f * Restore SIGPIPE to SIG_DFL when running the builder. This prevents
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).
2008-11-14 15:46:45 +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 4166b11a53 * Add /dev/pts to the default nix.conf. 2008-11-11 14:59:20 +00:00
Eelco Dolstra 709b55ee02 * Put the chroots under /nix/var/nix/chroots to reduce the risk of
disasters involving `rm -rf' on bind mounts.  Will try the
  definitive fix (per-process mounts, apparently possible via the
  CLONE_NEWNS flag in clone()) some other time.
2008-10-29 15:34:48 +00:00
Ludovic Courtès c98ea254dc libstore: Always mount `/dev/pts' individually.
This fixes problems such as Tcl's PTY handling:

  ERROR: The system has no more ptys.  Ask your system administrator to
  create more.
2008-10-16 21:04:32 +00:00
Eelco Dolstra 9d6d50269b * Bug fix for building on some old installations (contributed by Pjotr). 2008-10-16 14:16:03 +00:00
Eelco Dolstra f32fef1b07 * GC option `--max-atime' that specifies an upper limit to the last
accessed time of paths that may be deleted.  Anything more recently
  used won't be deleted.  The time is specified in time_t,
  e.g. seconds since 1970-01-01 00:00:00 UTC; use `date +%s' to
  convert to time_t from the command line. 

  Example: to delete everything that hasn't been used in the last two
  months:

  $ nix-store --gc -v --max-atime $(date +%s -d "2 months ago")
2008-09-17 14:52:35 +00:00
Eelco Dolstra 4af2fdba6d * Typo. 2008-09-17 13:00:55 +00:00
Eelco Dolstra c987061aa4 * Some refactoring. Better output with `-v' for --use-atime. 2008-09-17 12:54:07 +00:00
Eelco Dolstra 7ab68961e4 * Garbage collector: added an option `--use-atime' to delete paths in
order of ascending last access time.  This is useful in conjunction
  with --max-freed or --max-links to prefer deleting non-recently used
  garbage, which is good (especially in the build farm) since garbage
  may become live again.

  The code could easily be modified to accept other criteria for
  ordering garbage by changing the comparison operator used by the
  priority queue in collectGarbage().
2008-09-17 10:02:55 +00:00
Eelco Dolstra 7718b19389 * Explicitly set PWD to prevent problems with chroot builds. In
particular, dietlibc cannot figure out the cwd because the inode of
  the current directory doesn't appear in .. (because getdents returns
  the inode of the mount point).
2008-08-27 17:20:25 +00:00
Eelco Dolstra 9cc0da8453 * Create a /tmp with 1777 permission in the chroot. Some builders
need a writable /tmp (they don't respect $TMPDIR).
2008-08-27 16:03:03 +00:00
Eelco Dolstra d06be428f6 * Disable chroot builds for fixed-output derivations so that we don't
need /etc in the chroot (in particular, /etc/resolv.conf for
  fetchurl).  Not having /etc/resolv.conf in the chroot is a good
  thing, since we don't want normal derivations to download files.
2008-08-25 15:49:22 +00:00
Eelco Dolstra b428adc267 * Strip off the `.nix' suffix from the attribute name for files in
~/.nix-defexpr,  otherwise the attribute cannot be selected with the
  `-A' option.  Useful if you want to stick a Nix expression directly
  in ~/.nix-defexpr.
2008-08-25 13:31:57 +00:00
Eelco Dolstra db4f4a8425 * Backward compatibility check to prevent nixos-rebuild from barfing
when upgrading Nix.
2008-08-14 13:02:19 +00:00
Eelco Dolstra c03b729319 * Increase the sleep periods a bit to make the test less likely to
fail on slow machines.  Of course it would be better if this test
  wasn't timing dependent...
2008-08-14 09:26:30 +00:00
Eelco Dolstra 98b07466fb * Better error checking of the data from the substituters. 2008-08-05 10:57:53 +00:00
Eelco Dolstra 5adbb0aabe * build.cc: only use a substituter if it returns info for a path. 2008-08-04 13:15:35 +00:00
Eelco Dolstra c4f98941ed * nix-env --dry-run: show the total size of the substituter
downloads.
2008-08-04 12:29:04 +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 3c92ea399d * Make nix-env --dry-run print the paths to be substituted correctly
again.  (After the previous substituter mechanism refactoring I
  didn't update the code that obtains the references of substitutable
  paths.)  This required some refactoring: the substituter programs
  are now kept running and receive/respond to info requests via
  stdin/stdout.
2008-08-02 12:54:35 +00:00
Eelco Dolstra 989176c56e * Allow read-only access to the store (e.g., non-root users on NixOS
can do operations like "nix-store -qR <path>" even without the Nix
  daemon).
2008-07-18 15:34:46 +00:00
Eelco Dolstra 6c8641a542 2008-06-18 19:17:05 +00:00
Eelco Dolstra d3aa183beb * Garbage collector: option `--max-freed' to stop after at least N
bytes have been freed, `--max-links' to stop when the Nix store
  directory has fewer than N hard links (the latter being important
  for very large Nix stores on filesystems with a 32000 subdirectories
  limit).
2008-06-18 14:20:16 +00:00
Eelco Dolstra a8f3b02092 * `nix-store --optimise': handle files with >= 32000 hard links.
(There can easily be more than 32000 occurrences of the empty file.)
2008-06-18 14:13:00 +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 94fd46fa1c * Note. 2008-06-14 16:02:31 +00:00
Eelco Dolstra 826b271d9a * Garbage collector: don't do a complete topological sort of the Nix
store under the reference relation, since that means that the
  garbage collector will need a long time to start deleting paths.
  Instead just delete the referrers of a path first.
2008-06-13 18:25:24 +00:00
Eelco Dolstra 30c9f909b2 * Print some progress info during the early GC stages. 2008-06-13 17:21:20 +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 bd955e15e1 * GCC 4.3.0 (Fedora 9) compatibility fixes. Reported by Gour and
Armijn Hemel.
2008-05-21 11:17:31 +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 329025253d * Use /tmp/nix-build-<drvpath>-<counter> instead of
/tmp/nix-<pid>-<counter> for temporary build directories.  This
  increases purity a bit: many packages store the temporary build path
  in their output, causing (generally unimportant) binary differences.
2008-03-27 13:45:17 +00:00
Eelco Dolstra f789ea1d09 * A transaction is unnecessary since the path cannot be
garbage-collected (it's a temporary root).
2008-03-01 21:05:33 +00:00
Eelco Dolstra 66c51dc215 * nix-store --dump-db / --load-db to dump/load the Nix DB.
* nix-store --register-validity: option to supply the content hash of
  each path.
* Removed compatibility with Nix <= 0.7 stores.
2008-01-29 18:17:36 +00:00
Michael Raskin 5eb5c23447 Fixed exportBuildReferenceGraph 2008-01-15 04:32:08 +00:00
Michael Raskin 2196cb67c5 Added a way to include derivation with its outputs and dependencies - exportBuildReferenceGraph 2007-12-30 09:30:56 +00:00
Eelco Dolstra 633518628f * nix-env -e: support uninstalling by path, so that one can say
$ nix-env -e $(which firefox)

  or

    $ nix-env -e /nix/store/nywzlygrkfcgz7dfmhm5xixlx1l0m60v-pan-0.132

* nix-env -i: if an argument contains a slash anywhere, treat it as a
  path and follow it through symlinks into the Nix store.  This allows
  things like

    $ nix-build -A firefox
    $ nix-env -i ./result

* nix-env -q/-i/-e: don't complain when the `*' selector doesn't match
  anything.  In particular, `nix-env -q \*' doesn't fail anymore on an
  empty profile.
2007-11-29 16:18:24 +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 149e273023 * Don't need gc.hh. 2007-11-15 15:07:27 +00:00
Michael Raskin 6fc60e2060 Added possibility to specify garbage collection levels for store paths; so packages can share intermediate results of compilation and GC will collect it automatically while never touching tarballs, for example. 2007-11-15 03:47:12 +00:00
Eelco Dolstra 42d80d1170 * On FreeBSD, sys/mount.h needs sys/param.h. 2007-10-29 10:03:07 +00:00
Eelco Dolstra d91cd30563 * Detect whether chroot / bind-mount support is available. 2007-10-27 16:51:55 +00:00
Eelco Dolstra dc6f373842 * Delete the chroot directory automatically.
* Removed some debug messages.
2007-10-27 16:06:38 +00:00
Eelco Dolstra 9397cd30c8 * Support for doing builds in a chroot under Linux. The builder is
executed in a chroot that contains just the Nix store, the temporary
  build directory, and a configurable set of additional directories
  (/dev and /proc by default).  This allows a bit more purity
  enforcement: hidden build-time dependencies on directories such as
  /usr or /nix/var/nix/profiles are no longer possible.  As an added
  benefit, accidental network downloads (cf. NIXPKGS-52) are prevented
  as well (because files such as /etc/resolv.conf are not available in
  the chroot).

  However the usefulness of chroots is diminished by the fact that
  many builders depend on /bin/sh, so you need /bin in the list of
  additional directories.  (And then on non-NixOS you need /lib as
  well...)
2007-10-27 00:46:59 +00:00
Eelco Dolstra d04291cfab * Doh! Don't change the permissions on /nix/store. 2007-10-10 13:52:38 +00:00
Eelco Dolstra 315183f194 * nix-store --optimise: flag "--dry-run" to just query what the disk
savings would be.
2007-10-10 13:43:04 +00:00
Eelco Dolstra a8629de827 * New command `nix-store --optimise' to reduce Nix store disk space
usage by finding identical files in the store and hard-linking them
  to each other.  It typically reduces the size of the store by
  something like 25-35%.  This is what the optimise-store.pl script
  did, but the new command is faster and more correct (it's safe wrt
  garbage collection and concurrent builds).
2007-10-09 22:14:27 +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 cb1c1004cd * When there are multiple substituters, make sure to release the
lock on the output path after trying each.  Otherwise the
  pathIsLockedByMe() test gets confused.
2007-08-28 16:22:08 +00:00
Eelco Dolstra c970b28ba0 * Fix a race condition with parallel builds where multiple
fixed-output derivations or substitutions try to build the same
  store path at the same time.  Locking generally catches this, but
  not between multiple goals in the same process.  This happened
  especially often (actually, only) in the build farm with fetchurl
  downloads of the same file being executed on multiple machines and
  then copied back to the main machine where they would clobber each
  other (NIXBF-13).

  Solution: if a goal notices that the output path is already locked,
  then go to sleep until another goal finishes (hopefully the one
  locking the path) and try again.
2007-08-28 11:36:17 +00:00
Eelco Dolstra e0d7e47862 * PathLocks::lockPaths: don't allow reacquiring a lock we already
hold.
2007-08-28 09:39:03 +00:00
Eelco Dolstra 3757ee589f * Bump the Nix database schema version number; delete the substitutes
table.
2007-08-13 11:37:39 +00:00
Eelco Dolstra 59afc1a15c * Backwards compatibility. 2007-08-13 11:15:13 +00:00
Eelco Dolstra 9e975458b4 * Get rid of the substitutes database table (NIX-47). Instead, if we
need any info on substitutable paths, we just call the substituters
  (such as download-using-manifests.pl) directly.  This means that
  it's no longer necessary for nix-pull to register substitutes or for
  nix-channel to clear them, which makes those operations much faster
  (NIX-95).  Also, we don't have to worry about keeping nix-pull
  manifests (in /nix/var/nix/manifests) and the database in sync with
  each other.

  The downside is that there is some overhead in calling an external
  program to get the substitutes info.  For instance, "nix-env -qas"
  takes a bit longer.

  Abolishing the substitutes table also makes the logic in
  local-store.cc simpler, as we don't need to store info for invalid
  paths.  On the downside, you cannot do things like "nix-store -qR"
  on a substitutable but invalid path (but nobody did that anyway).

* Never catch interrupts (the Interrupted exception).
2007-08-12 00:29:28 +00:00
Eelco Dolstra 6d1a1191b0 * Support queryDeriver() in multi-user installations. 2007-06-12 16:53:44 +00:00
Eelco Dolstra 9bff7ad728 * Check against creation of GC roots in the store. Those roots don't
work, because findRoots() stops when it encounters a symlink to the
  store.  And of course the store is supposed to be read-only.
2007-06-11 11:36:22 +00:00
Eelco Dolstra 7046c35843 * Typo (reported by Marc Weber). 2007-05-14 12:16:41 +00:00
Eelco Dolstra e5da9c8803 * Create the database directory if it doesn't exist. 2007-05-07 16:59:19 +00:00
Eelco Dolstra cbfac2fdcc * Set a terminate() handler to ensure that we leave the BDB
environment cleanly even when an exception is thrown from a
  destructor.  We still crash, but we don't take all other Nix
  processes with us.
2007-05-01 15:16:17 +00:00
Eelco Dolstra 644946feed * Make --verify more interruptable. 2007-05-01 13:21:05 +00:00
Eelco Dolstra ae7990cc88 * Work around a bug in Apple's GCC preprocessor. 2007-03-30 13:24:35 +00:00
Eelco Dolstra 803cb6e3b9 * Override the setuid helper using NIX_SETUID_HELPER. 2007-03-20 22:04:25 +00:00
Eelco Dolstra 8ab229ddf2 * Terminate build hooks and substitutes with a TERM signal, not a KILL
signal.  This is necessary because those processes may have joined
  the BDB environment, so they have to be given a chance to clean up.
  (NIX-85)
2007-03-19 12:48:45 +00:00
Eelco Dolstra b2b6cf3fc8 * Undocumented option `gc-check-reachability' to allow reachability
checking to be turned off on machines with way too many roots.
2007-03-19 09:16:47 +00:00
Eelco Dolstra 917e06bf63 * Delete the output paths before invoking the build hook. 2007-03-07 15:53:11 +00:00
Eelco Dolstra db1973d012 * Look for the openssl program at compile time. If not found, call
openssl through $PATH at runtime.
2007-03-01 13:30:46 +00:00
Eelco Dolstra b4a040e52b * Don't check the signature unless we have to. 2007-03-01 12:30:24 +00:00
Eelco Dolstra 2ea3bebc23 * Doh! The deriver can be empty. 2007-02-27 23:18:57 +00:00
Eelco Dolstra 9da367b7d5 * `nix-store -qR' and friends: print the paths sorted topologically
under the references relation.  This is useful for commands that
  want to copy paths to another Nix store in the right order.
2007-02-21 22:45:10 +00:00
Eelco Dolstra 65f195f4c7 * Check that the file containing the secret key is secret. 2007-02-21 17:51:10 +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 dc7d594776 * importPath(): set the deriver.
* exportPath(): lock the path, use a transaction.
2007-02-21 16:23:25 +00:00
Eelco Dolstra 43c4d18c6a * nix-store --import': import an archive created by nix-store
--export' into the Nix store, and optionally check the cryptographic
  signatures against /nix/etc/nix/signing-key.pub.  (TODO: verify
  against a set of public keys.)
2007-02-21 15:45:32 +00:00
Eelco Dolstra 46e0919ced * `nix-store --export --sign': sign the Nix archive using the RSA key
in /nix/etc/nix/signing-key.sec
2007-02-21 14:31:42 +00:00
Eelco Dolstra b824a1daee * Start of `nix-store --export' operation for serialising a store
path.  This is like `nix-store --dump', only it also dumps the
  meta-information of the store path (references, deriver).  Will add
  a `--sign' flag later to add a cryptographic signature, which we
  will use for exchanging store paths between build farm machines in a
  secure manner.
2007-02-20 23:17:20 +00:00
Eelco Dolstra 46605fb4f5 * Fix 64-bit compiler warnings. 2007-02-06 20:03:53 +00:00
Eelco Dolstra f52de527c7 * Doh! 2007-01-29 15:55:49 +00:00
Eelco Dolstra b618fa6eb6 * computeStorePathForText: take the references into account when
computing the store path (NIX-77).  This is an important security
  property in multi-user Nix stores.

  Note that this changes the store paths of derivations (since the
  derivation aterms are added using addTextToStore), but not most
  outputs (unless they use builtins.toFile).
2007-01-29 15:51:37 +00:00
Eelco Dolstra fac63d6416 * exportReferencesGraph: work on paths within store paths as well. 2007-01-23 16:57:43 +00:00
Eelco Dolstra 63f3ce6d9a * `nix-store --verify': revive checking the referrers table. This is
important to get garbage collection to work if there is any
  inconsistency in the database (because the referrer table is used to
  determine whether it is safe to delete a path).
* `nix-store --verify': show some progress.
2007-01-14 17:28:30 +00:00
Eelco Dolstra 8f67b35886 * Make the garbage collector more resilient to certain consistency
errors: in-use paths now cause a warning, not a fatal error.
2007-01-14 16:24:49 +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 b17677462c * Use lchown() instead of chown() in canonicalisePathMetaData(). This
matters when running as root, since then we don't use the setuid
  helper (which already used lchown()).
  
* Also check for an obscure security problem on platforms that don't
  have lchown.  Then we can't change the ownership of symlinks, which
  doesn't matter *except* when the containing directory is writable by
  the owner (which is the case with the top-level Nix store directory).
2006-12-09 20:02:27 +00:00
Eelco Dolstra 5f681988f2 * Use deletePathWrapped() in more places. 2006-12-09 00:26:24 +00:00
Eelco Dolstra fa33303146 * Goal cancellation inside the waitForInput() loop needs to be handled
very carefully, since it can invalidate iterators into the
  `children' map.
2006-12-08 18:41:48 +00:00
Eelco Dolstra 06c4929958 * Some refactoring.
* Throw more exceptions as BuildErrors instead of Errors.  This
  matters when --keep-going is turned on.  (A BuildError is caught
  and terminates the goal in question, an Error terminates the
  program.)
2006-12-08 17:26:21 +00:00
Eelco Dolstra 9dbfe242e3 * Kill a build if it has gone for more than a certain number of
seconds without producing output on stdout or stderr (NIX-65).  This
  timeout can be specified using the `--max-silent-time' option or the
  `build-max-silent-time' configuration setting.  The default is
  infinity (0).

* Fix a tricky race condition: if we kill the build user before the
  child has done its setuid() to the build user uid, then it won't be
  killed, and we'll potentially lock up in pid.wait().  So also send a
  conventional kill to the child.
2006-12-08 15:44:00 +00:00
Eelco Dolstra d3fe6ab024 * Also for convenience, change the ownership of the build output even
in case of failure.
2006-12-08 00:19:50 +00:00
Eelco Dolstra 096194ab29 * Remove ancient terminology. 2006-12-07 23:58:36 +00:00
Eelco Dolstra 6833e8bbe8 * When keeping the temporary build directory (-K), change the owner
back to the Nix account.
2006-12-07 23:27:40 +00:00
Eelco Dolstra 2819eb36a4 * Be less verbose. 2006-12-07 21:43:35 +00:00
Eelco Dolstra c3286ec020 * Don't count on the Pid deconstructor to kill the child process,
since if we're running a build user in non-root mode, we can't.  Let
  the setuid helper do it.
2006-12-07 17:52:58 +00:00
Eelco Dolstra f76fdb6d42 * If not running as root, let the setuid helper kill the build user's
processes before and after the build.
2006-12-07 16:33:31 +00:00
Eelco Dolstra ec23ecc64d * In the garbage collector, if deleting a path fails, try to fix its
ownership, then try again.
2006-12-07 15:54:52 +00:00
Eelco Dolstra a0a43c3206 * When not running as root, call the setuid helper to change the
ownership of the build result after the build.
2006-12-07 15:18:14 +00:00
Eelco Dolstra 6a07ff1ec0 * Change the ownership of store paths to the Nix account before
deleting them using the setuid helper.
2006-12-07 14:14:35 +00:00
Eelco Dolstra 7d8cf316ee * Pass the actual build user to the setuid helper. 2006-12-07 11:27:32 +00:00
Eelco Dolstra a45c498e4e * If Nix is not running as root, call the setuid helper to start the
builder under the desired build user.
2006-12-07 00:42:30 +00:00
Eelco Dolstra 813a7c65c9 * Sanity check. 2006-12-07 00:19:27 +00:00
Eelco Dolstra 6a8e60913a * Move killUser() to libutil so that the setuid helper can use it. 2006-12-07 00:16:07 +00:00
Eelco Dolstra 6e5ec1029a * Get rid of `build-users'. We'll just take all the members of
`build-users-group'.  This makes configuration easier: you can just
  add users in /etc/group.
2006-12-06 20:00:15 +00:00
Eelco Dolstra 9f0efa6611 * Start of the setuid helper (the program that performs the operations
that have to be done as root: running builders under different uids,
  changing ownership of build results, and deleting paths in the store
  with the wrong ownership).
2006-12-06 01:24:02 +00:00
Eelco Dolstra 2b558843a2 * Be less chatty. 2006-12-05 19:01:19 +00:00
Eelco Dolstra 44cad9630f * Urgh. Do setgid() before setuid(), because the semantics of setgid()
changes completely depending on whether you're root...
2006-12-05 18:28:15 +00:00
Eelco Dolstra 4c1c37d0b6 * FreeBSD returns ESRCH when there are no processes to kill. 2006-12-05 18:07:46 +00:00
Eelco Dolstra 62b0497c0f * Better message. 2006-12-05 16:17:01 +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 8623256f48 * findRoots: return a map from the symlink (outside of the store) to
the store path (inside the store).
2006-12-05 00:48:36 +00:00
Eelco Dolstra d27a73b1a9 * In addPermRoot, check that the root that we just registered can be
found by the garbage collector.  This addresses NIX-71 and is a
  particular concern in multi-user stores.
2006-12-05 00:34:42 +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 7751160e9f * Don't redirect stderr. 2006-12-04 19:10:23 +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 4740baf3a6 * When NIX_REMOTE=daemon, connect to /nix/var/nix/daemon.socket
instead of forking a worker.
2006-12-04 14:21:39 +00:00
Eelco Dolstra f5f0cf423f * Refactoring. 2006-12-04 13:28:14 +00:00
Eelco Dolstra 052b6fb149 * Pass the verbosity level to the worker. 2006-12-04 13:15:29 +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 35247c4c9f * Removed `build-allow-root'.
* Added `build-users-group', the group under which builds are to be
  performed.
* Check that /nix/store has 1775 permission and is owner by the
  build-users-group.
2006-12-03 15:32:38 +00:00
Eelco Dolstra 4251f94b32 * Use a Unix domain socket instead of pipes. 2006-12-03 02:36:44 +00:00
Eelco Dolstra 8c76df93e6 * Better error message if the worker doesn't start. 2006-12-03 02:22:04 +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 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 9c9cdb06d0 * Remove SwitchToOriginalUser, we're not going to need it anymore. 2006-12-02 14:34:14 +00:00
Eelco Dolstra 8ba5d32769 * Remove queryPathHash().
* Help for nix-worker.
2006-12-02 14:27:24 +00:00
Eelco Dolstra fcd9900d74 * Replace read-only calls to addTextToStore. 2006-12-01 21:00:39 +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
Eelco Dolstra b0d8e05be1 * More operations.
* addToStore() and friends: don't do a round-trip to the worker if
  we're only interested in the path (i.e., in read-only mode).
2006-12-01 18:00:01 +00:00
Eelco Dolstra 0565b5f2b3 * More remote operations.
* Added new operation hasSubstitutes(), which is more efficient than
  querySubstitutes().size() > 0.
2006-11-30 22:43:55 +00:00