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Author SHA1 Message Date
Eelco Dolstra 5b72d8a749 * Implemented `map'. 2010-03-30 13:47:59 +00:00
Eelco Dolstra d78a05ab40 * Make `import' work. 2010-03-30 09:22:33 +00:00
Eelco Dolstra 31428c3a06 * Started integrating the new evaluator. 2010-03-29 14:37:56 +00:00
Eelco Dolstra 52090d2418 2010-03-29 10:13:51 +00:00
Eelco Dolstra e3f32ac5af 2010-03-29 09:43:55 +00:00
Eelco Dolstra 807a67bc74 2010-03-29 09:43:39 +00:00
Eelco Dolstra 392811eb8f * Strings. 2010-03-28 18:27:07 +00:00
Eelco Dolstra d96cdcea6b 2010-03-28 16:57:16 +00:00
Eelco Dolstra 3d2b835f30 * Implemented multi-argument primops. 2010-03-28 16:37:39 +00:00
Eelco Dolstra 45d822f29c * Primops (not yet finished). 2010-03-26 15:45:53 +00:00
Eelco Dolstra cad8726b2c * Implemented the ==' and !=' operators. These now use a deep 
equality test, so they also work for (finite) attribute sets and
  lists.
 2010-03-26 13:27:26 +00:00
Eelco Dolstra 8da118e4d0 * Measure stack usage. 2010-03-25 16:35:24 +00:00
Eelco Dolstra c2ba4313fb * Implemented lists. 2010-03-25 15:38:37 +00:00
Eelco Dolstra 25eedf085d * Quick and dirty implementation of with'. with e1; e2' is 
basically desugared to `let <with> = e1; e2', and `lookupVar' looks
  in each <with> in the environment chain for an attribute with the
  specified name.
 2010-03-25 14:51:04 +00:00
Eelco Dolstra 3c9f8fc9b6 * Don't convert variable names to strings. 2010-03-25 13:10:04 +00:00
Eelco Dolstra f450384ded * Implement blackholing. 2010-03-25 12:51:14 +00:00
Eelco Dolstra ef8bd919fc * Implement `...' and default function arguments. 2010-03-25 12:45:23 +00:00
Eelco Dolstra 8a10360c91 * Simplify @-patterns: only {attrs}@name' or name@{attrs}' are now 
allowed.  So `name1@name2', `{attrs1}@{attrs2}' and so on are now no
  longer legal.  This is no big loss because they were not useful
  anyway.

  This also changes the output of builtins.toXML for @-patterns
  slightly.
 2010-03-25 12:19:41 +00:00
Eelco Dolstra 7482349fe8 * Implemented attribute set pattern matches. 2010-03-24 23:40:00 +00:00
Eelco Dolstra 0fd3648d34 * Store values in environments. 2010-03-24 12:41:08 +00:00
Eelco Dolstra b70bd8fe56 * Reduce the number of value allocations in eval() by moving 
responsibility for allocation of the result to the caller.
 2010-03-24 12:11:38 +00:00
Eelco Dolstra d31c59eb17 * Plain lambdas. 2010-03-24 11:06:05 +00:00
Eelco Dolstra e8f7978274 2010-03-23 19:19:52 +00:00
Eelco Dolstra 0910ae9568 * Start of an evaluator that uses call-by-need (with thunk updating) 
instead of (memoised) call-by-name.
 2010-03-23 17:30:50 +00:00
Eelco Dolstra 141294ff38 * Clean up error messages in killUser(). 2010-03-19 11:36:34 +00:00
Eelco Dolstra f0c473c5f7 * Fix building on Cygwin (http://hydra.nixos.org/build/325071). 2010-03-16 13:01:52 +00:00
Nicolas Pierron 741b7577c1 Merge r20344 & r20346. 2010-03-14 11:58:07 +00:00
Lluís Batlle i Rossell 2fb0df83e9 Uh. somehow a Makefile tab got in as spaces. Fixing. 2010-03-11 21:22:52 +00:00
Lluís Batlle i Rossell 13cce8ec45 Making 'bin2c' to be built with the compiler for the local system. 
I copied the configure.ac code about CC_FOR_BUILD from libX11.
 2010-03-11 20:56:25 +00:00
Eelco Dolstra e020d80e4e * Sync with the trunk. 2010-03-11 15:45:05 +00:00
Ludovic Courtès 05e15049a5 Show the build user's group in /etc/group in chroots. 
* src/libstore/build.cc (nix::DerivationGoal::startBuilder): Create
  /etc/group showing the build user's group.
 2010-03-11 14:47:04 +00:00
Eelco Dolstra 070057c1b9 * Sync with the trunk. 2010-03-11 10:52:52 +00:00
Ludovic Courtès c752c9f41a Fix thinko in r20547. 
* src/libstore/build.cc (nix::DerivationGoal::startBuilder): Fix the GID
  of the build user in /etc/passwd.
 2010-03-11 10:33:04 +00:00
Ludovic Courtès 2e8eaca573 Clear supplementary groups of `nixbld' in /etc/passwd in chroots. 
* src/libstore/build.cc (nix::DerivationGoal::startBuilder): Don't
  display any supplementary groups for `nixbld' in /etc/passwd.
 2010-03-11 10:21:23 +00:00
Eelco Dolstra 1a65142ec4 * Remove a debug statement. 2010-03-10 12:46:25 +00:00
Eelco Dolstra 4c356acd04 * In `nix-store --export', abort if the contents of a path has 
changed.  This prevents corrupt paths from spreading to other
  machines.  Note that checking the hash is cheap because we're
  hashing anyway (because of the --sign feature).
 2010-03-09 14:32:03 +00:00
Eelco Dolstra 44f6e6de77 * Set gc-keep-outputs' or gc-keep-derivations' to false with 
`--delete --ignore-liveness'.
 2010-03-08 21:31:42 +00:00
Eelco Dolstra 2e4ef03aa3 * Increase the sqlite timeout. 2010-03-08 10:35:45 +00:00
Eelco Dolstra 04791840f4 * Emit warning='1' or error='1' attributes for lines marked as 
warnings or errors with \e[w or \e[e.
 2010-03-05 12:54:58 +00:00
Eelco Dolstra bc6f7fc139 * Remove some unused functions. 2010-03-04 13:03:26 +00:00
Eelco Dolstra fb6e223ddc * Synced with the trunk. 2010-03-04 12:15:00 +00:00
Eelco Dolstra e14e2399ed * Prevent a potential memory corruption problem if an ATerm garbage 
collection happens during fixAttrs().
 2010-03-02 20:23:42 +00:00
Eelco Dolstra 56af8e86e3 * Protect the true', false' and `__overrides' constants. Without 
an ATprotect call, these could be garbage collected, leading to
  weird crashes or wrong results.
 2010-03-02 20:09:12 +00:00
Eelco Dolstra 3f9e647ae8 * checkInterrupt() shouldn't be called from a destructor. 2010-03-02 19:04:17 +00:00
Eelco Dolstra 594eaddd11 * When using the included sqlite/aterm libraries, build with 
--enable-shared.
* In libutil/libstore/libexpr etc., link against sqlite and aterm.
* Some more header file hygiene.
 2010-03-02 15:58:13 +00:00
Eelco Dolstra 24035b98b1 * Implement RemoteStore::queryValidPaths(). 2010-02-26 12:05:01 +00:00
Eelco Dolstra e42401ee7b * Implement RemoteStore::queryDerivationOutputs(). 2010-02-25 15:52:22 +00:00
Eelco Dolstra af565c348a * Support read-only access to the database. 2010-02-24 16:44:43 +00:00
Eelco Dolstra e33f67ff0b * Refactor the upgrade / database initialisation logic a bit. 2010-02-24 16:30:20 +00:00
Eelco Dolstra 84a4dd5ff0 * Don't use fdatasync since it doesn't work on Snow Leopard. 
* Don't refer to config.h in util.hh, because config.h is not
  installed (http://hydra.nixos.org/build/303053).
 2010-02-24 15:46:06 +00:00
Eelco Dolstra cfe742cfc5 * A function to query just the database id of a valid path. 2010-02-24 15:07:23 +00:00
Eelco Dolstra 6baa2a2f5e 2010-02-24 14:39:52 +00:00
Eelco Dolstra 9fd85c94de * Use `truncate' journal mode, which should be a bit faster. 2010-02-24 14:22:34 +00:00
Eelco Dolstra fefd467539 * `helpText' is now zero-terminated. 2010-02-24 13:24:27 +00:00
Eelco Dolstra a3c63d0d6c * Disable fsync() in SQLite if the fsync-metadata option is set to 
false.
* Change the default for `fsync-metadata' to true.
* Disable `fsync-metadata' in `make check'.
 2010-02-24 13:12:57 +00:00
Eelco Dolstra 90b6352d0a * Do registerValidPaths() in one transaction, which is much faster. 
E.g. it cuts the runtime of the referrers test from 50s to 23s.
 2010-02-24 12:48:00 +00:00
Eelco Dolstra fae0427324 * ADDITIONAL_NETWORK_LIBS -> LIBS. 2010-02-24 12:25:48 +00:00
Eelco Dolstra fa6a4fcb11 * Add ${sqlite_lib} everywhere. Just adding it in `libstore' doesn't 
work on x86_64 when sqlite is compiled statically.
 2010-02-24 12:18:48 +00:00
Eelco Dolstra 5954eadf67 * Remove the fdatasync check since it's no longer needed. 2010-02-24 12:16:50 +00:00
Eelco Dolstra 462bd50aef * Use normal (rather than full) synchronous mode, which I gather from 
the description at http://www.sqlite.org/atomiccommit.html should be
  safe enough.
 2010-02-24 10:57:57 +00:00
Eelco Dolstra 63b09c5e41 2010-02-23 22:31:38 +00:00
Eelco Dolstra b4e6d98fc3 * configure: flag --with-sqlite. 2010-02-23 22:12:46 +00:00
Eelco Dolstra 2b20318b0e 2010-02-22 14:24:37 +00:00
Eelco Dolstra 9cda616949 * The database needs a trigger to get rid of self-references to 
prevent a foreign key constraint violation on the Refs table when
  deleting a path.
 2010-02-22 14:18:55 +00:00
Eelco Dolstra c4d388add4 * Get derivation outputs from the database instead of the .drv file, 
which requires more I/O.
 2010-02-22 12:44:36 +00:00
Eelco Dolstra 103cfee056 * Revert r19650 (implement gc-keep-outputs by looking for derivations 
with the same name as the output) and instead use the
  DerivationOutputs table in the database, which is the correct way to
  to do things.
 2010-02-22 11:44:17 +00:00
Eelco Dolstra 299ff64812 * Put the derivation outputs in the database. This is useful for the 
garbage collector.
 2010-02-22 11:15:50 +00:00
Eelco Dolstra 1930570ad9 * Foreign key support in SQLite is not a persistent setting, so enable 
it at startup.
* Implement negative caching.  Now `make check' passes.
 2010-02-19 17:15:22 +00:00
Eelco Dolstra 9c9a88e9e2 * Implement more stuff. 2010-02-19 16:43:25 +00:00
Eelco Dolstra 762cee72cc * Implement registerValidPath(). 2010-02-19 16:04:51 +00:00
Eelco Dolstra 268f9aaf28 * Implemented queryValidPaths() and verifyStore(). 2010-02-18 16:51:27 +00:00
Eelco Dolstra 836e5b6f57 * Implemented queryReferrers(). 2010-02-18 16:21:59 +00:00
Eelco Dolstra 77cb9e3fb1 * Implement queryPathInfo(). 2010-02-18 15:52:57 +00:00
Eelco Dolstra 885e22b16e * Implement isValidPath(). 2010-02-18 15:11:08 +00:00
Eelco Dolstra cfb09e0fad * Automatically abort transactions if they go out of scope without 
committing.
 2010-02-18 14:40:07 +00:00
Eelco Dolstra e0305bb7a8 * Some wrapper objects to ensure that SQLite objects are properly 
destroyed.
 2010-02-18 14:30:42 +00:00
Eelco Dolstra a053d2d8e5 * Add the deriver to the ValidPaths table. In principle we could now 
store all the derivers of a path efficiently.  But that opens a big
  can of worms with respect to garbage collector semantics.
 2010-02-18 13:48:18 +00:00
Eelco Dolstra dbddac0fe9 * Assign an integer id to every row in the ValidPaths table in order 
to make the Refs table more space-efficient.  For instance, this
  reduces the size of the database on my laptop from 93 MiB to 18
  MiB.  (It was 72 MiB with the old schema on an ext3 disk with a 1
  KiB block size.)
 2010-02-18 13:40:46 +00:00
Eelco Dolstra c1a07f9445 * Convert the Nix database to SQLite. 2010-02-18 13:16:59 +00:00
Ludovic Courtès 20186a4079 Don't rely on `PATH_MAX' on GNU. 2010-02-10 15:55:50 +00:00
Eelco Dolstra 4e17be7981 * Revert r19797, and use a simpler solution: just don't monitor build 
hooks for silence.  It's unnecessary because the remote nix-store
  command is already monitoring the real build.
 2010-02-03 21:38:41 +00:00
Eelco Dolstra f859a8d3c3 * While waiting for a lock, print a sign of life every 5 minutes. 
This prevents remote builders from being killed by the
  `max-silent-time' inactivity monitor while they are waiting for a
  long garbage collection to finish.  This happens fairly often in the
  Hydra build farm.
 2010-02-03 21:22:57 +00:00
Eelco Dolstra 4bbbe25802 * Remove most Cygwin-specific code. Cygwin 1.7 implements advisory 
POSIX locks, and simulates Unix-style file deletion semantics
  sufficiently.  Note that this means that Nix won't work on Cygwin
  1.5 anymore.
 2010-02-02 15:28:36 +00:00
Eelco Dolstra 2723d9b56e * If fdatasync() isn't available, use fsync(). 2010-02-02 11:57:49 +00:00
Eelco Dolstra 07ffdc2862 * Added an option "fsync-metadata" to fsync() changes to 
/nix/var/nix/db.
* Removed the function writeStringToFile since it does (almost) the
  same thing as writeFile.
 2010-01-29 12:22:58 +00:00
Eelco Dolstra ad529fb89f * Don't consider a store path valid if its info file exists but is 
zero bytes long.  That makes Nix more robust in case of crashes
  (especially on ext4).
 2010-01-29 11:53:58 +00:00
Eelco Dolstra fdcaf37361 * Made `nix-store -qR --include-outputs' much faster if there are 
multiple paths specified on the command line (from O(n * m) to O(n +
  m), where n is the number of arguments and m is the size of the
  closure).
 2010-01-25 17:18:44 +00:00
Eelco Dolstra 5388944e8d * Make the garbage collector do the right thing when `gc-keep-outputs' 
is enabled by not depending on the deriver.
 2010-01-25 16:04:32 +00:00
Eelco Dolstra f0c0277970 * On startup, set the default SIGCHLD handler. This is so that Nix 
works correctly in weird environments where the SIGCHLD handler is
  set to "ignore".
 2010-01-12 12:22:38 +00:00
Eelco Dolstra ef92a14bfe * Include config.h before the C library headers, because it defines 
_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.)
 2009-12-17 14:12:44 +00:00
Eelco Dolstra 945d8218fb * Build correctly against newer ATerm releases. Fixes "error: 'union' 
tag used in naming 'struct _ATerm'".
 2009-12-16 15:29:50 +00:00
Eelco Dolstra bcd6cdf0d8 * Give a better error message when trying to build something and 
readOnlyMode is set.
 2009-12-09 17:45:22 +00:00
Eelco Dolstra 13618b191e * Grrr. 2009-11-24 13:28:46 +00:00
Eelco Dolstra aa5a768720 * GCC 4.4 is stricter about the EOF macro 
(http://hydra.nixos.org/build/156340).
 2009-11-24 12:56:26 +00:00
Eelco Dolstra 9b8fda796b * Templatise getIntArg / string2Int. 2009-11-24 12:26:25 +00:00
Eelco Dolstra 8022015552 * In the garbage collector, don't count files with a link count > 1 in 
the "bytes/blocks freed" statistics.
 2009-11-24 10:51:52 +00:00
Eelco Dolstra f9e766db98 * Randomise the order in which we delete entries to make the collector 
less biased towards deleting paths that come alphabetically first
  (e.g. /nix/store/000...).  This matters when using --max-freed etc.
 2009-11-24 09:53:18 +00:00
Eelco Dolstra ca50c83fbb 2009-11-23 21:21:29 +00:00
Eelco Dolstra 3d55f1eb57 * A command `nix-store --query --roots <paths>' to find the garbage 
collector roots that point (directly or indirectly) to the given
  paths.
 2009-11-23 18:16:25 +00:00
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
Eelco Dolstra deb342fb08 * builtins.trace: in the common case that the value is a string, then 
show the string, not the ATerm, so we get `trace: bla' instead of
  `trace: Str("bla",[])'.
 2009-10-22 08:10:12 +00:00
Eelco Dolstra 437077c39d * Added a primop unsafeDiscardOutputDependency needed by Disnix to 
pass derivation paths to a builder without actually building them.
 2009-10-21 15:05:30 +00:00
Eelco Dolstra 6f7d7bc1de * Give a useful error message when an evaluation error occurs while 
trying to upgrade a package.
 2009-10-13 09:30:17 +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 96f1517831 * Support platforms that don't have O_ASYNC (e.g. OpenSolaris 
apparently).
 2009-09-30 11:32:04 +00:00
Eelco Dolstra 1a8f8fd86f * OpenSolaris compatibility. 2009-09-30 09:54:29 +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 1332dd1ed3 * tryEval shouldn't catch all exceptions of type Error, since not all 
of them leave the evaluator in a continuable state.  Also, it should
  be less chatty.
 2009-09-23 19:19:26 +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 0dbd4638e0 * Two primops: builtins.intersectAttrs and builtins.functionArgs. 
intersectAttrs returns the (right-biased) intersection between two
  attribute sets, e.g. every attribute from the second set that also
  exists in the first.  functionArgs returns the set of attributes
  expected by a function.

  The main goal of these is to allow the elimination of most of
  all-packages.nix.  Most package instantiations in all-packages.nix
  have this form:

    foo = import ./foo.nix {
      inherit a b c;
    };

  With intersectAttrs and functionArgs, this can be written as:

    foo = callPackage (import ./foo.nix) { };

  where

   callPackage = f: args:
     f ((builtins.intersectAttrs (builtins.functionArgs f) pkgs) // args);

  I.e., foo.nix is called with all attributes from "pkgs" that it
  actually needs (e.g., pkgs.a, pkgs.b and pkgs.c).  (callPackage can
  do any other generic package-level stuff we might want, such as
  applying makeOverridable.)  Of course, the automatically supplied
  arguments can be overriden if needed, e.g.

    foo = callPackage (import ./foo.nix) {
      c = c_version_2;
    };

  but for the vast majority of packages, this won't be needed.

  The advantages are to reduce the amount of typing needed to add a
  dependency (from three sites to two), and to reduce the number of
  trivial commits to all-packages.nix.  For the former, there have
  been two previous attempts:

    - Use "args: with args;" in the package's function definition.
      This however obscures the actual expected arguments of a
      function, which is very bad.

    - Use "{ arg1, arg2, ... }:" in the package's function definition
      (i.e. use the ellipis "..." to allow arbitrary additional
      arguments), and then call the function with all of "pkgs" as an
      argument.  But this inhibits error detection if you call it with
      an misspelled (or obsolete) argument.
 2009-09-15 13:01:46 +00:00
Michael Raskin 3bca8931e8 Adding tryEval builtin. It allows to catch presence of errors in an expression. 2009-08-25 16:06:46 +00:00
Eelco Dolstra c6890d6b5c * Replace newlines in table output with spaces. 2009-07-02 08:52:12 +00:00
Eelco Dolstra 749dd97a54 * Support integers and lists of strings in meta fields. This is 
useful for fields like meta.maintainers, meta.priority (which can be
  a proper integer now) and even meta.license (if there are multiple
  licenses).
 2009-06-30 15:53:39 +00:00
Eelco Dolstra f2c3fc5191 * Don't show trace information by default (`--show-trace' to enable). 
NixOS evaluation errors in particular look intimidating and
  generally aren't very useful.  Ideally the builtins.throw messages
  should be self-contained.
 2009-06-30 13:28:29 +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 a64bbe049e * Change the scoping of "inherit (e) ..." in recs so that the 
attributes of the rec are in scope of `e'.  This is useful in
  expressions such as

    rec {
      lib = import ./lib;
      inherit (lib) concatStrings;
    }

  It does change the semantics of expressions such as

    let x = {y = 1;}; in rec { x = {y = 2;}; inherit (x) y; }.y

  This now returns 2 instead of 1.  However, no code in Nixpkgs or
  NixOS seems to rely on the old behaviour.
 2009-05-15 13:46:13 +00:00
Eelco Dolstra d407d572fd * Some syntactic sugar for attribute sets: allow {x.y.z = ...;} as a 
shorthand for {x = {y = {z = ...;};};}.  This is especially useful
  for NixOS configuration files, e.g.

    {
      services = {
        sshd = {
          enable = true;
          port = 2022;
        };
      };
    }

  can now be written as

    {
      services.sshd.enable = true;
      services.sshd.port = 2022;
    }

  However, it is currently not permitted to write
  
    {
      services.sshd = {enable = true;};
      services.sshd.port = 2022;
    }

  as this is considered a duplicate definition of `services.sshd'.
 2009-05-15 12:35:23 +00:00
Eelco Dolstra e42975490f * Check for duplicate attributes in fixAttrs, rather than doing a 
separate traversal after parsing.  Likewise, check for duplicate
  pattern variables right away.
 2009-05-14 14:29:45 +00:00
Eelco Dolstra 50d11b90ca * Allow unsafe (unspecified) comparisons between attrsets unless 
NIX_NO_UNSAFE_EQ is set, for now.
 2009-05-12 11:06:24 +00:00
Eelco Dolstra c34e6d71bc * Disallow equality tests between attribute sets. This was always 
broken, but now the evaluator checks for it to prevent Nix
  expressions from relying on undefined behaviour.  Equality tests are
  implemented using a shallow pointer equality test between ATerms.
  However, because attribute sets are lazy and contain position
  information, this can give false positives.  For instance,
  previously

    let y = {x = 1;}; in y == y

  evaluated to true, while the equivalent expression

    {x = 1;} == {x = 1;}

  evaluated to false.  So disallow these tests for now.  (Eventually
  we may want to implement deep equality tests for attribute sets,
  like lib.eqStrict.)
  
* Idem: disallow comparisons between functions.

* Implemented deep comparisons of lists.  This had the same problem as
  attribute sets - the elements in the list weren't evaluated.  For
  instance,

    ["xy"] == [("x" + "y")]

  evaluated to false.  Now it works properly.
 2009-05-11 15:50:14 +00:00
Eelco Dolstra 7660e2a068 * Remove a right recursion that causes the parser to barf on very long 
lists.  The comment about ATreverse requiring unbounded stack space
  was unfounded anyway.
 2009-05-07 11:35:52 +00:00
Michael Raskin 098cb9d233 Add an ftruncate call paired with fallocate to play safe with some FSes (namely, BtrFS fallocate sets file size to allocated size, i.e. multiple of block size) 2009-05-04 08:10:24 +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 3a87163b24 * Shut up a GCC warning. 2009-03-23 13:52:52 +00:00