Commit graph

2097 commits

Author SHA1 Message Date
Eelco Dolstra
9279174dde * Added an experimental feature suggested by Andres: ellipses ("...")
in attribute set pattern matches.  This allows defining a function
  that takes *at least* the listed attributes, while ignoring
  additional attributes.  For instance,

    {stdenv, fetchurl, fuse, ...}:
    
    stdenv.mkDerivation {
      ...
    };
    
  defines a function that requires an attribute set that contains the 
  specified attributes but ignores others.  The main advantage is that
  we can then write in all-packages.nix

    aefs = import ../bla/aefs pkgs;

  instead of

    aefs = import ../bla/aefs {
      inherit stdenv fetchurl fuse;
    };

  This saves a lot of typing (not to mention not having to update
  all-packages.nix with purely mechanical changes).  It saves as much
  typing as the "args: with args;" style, but has the advantage that
  the function arguments are properly declared (not implicit in what
  the body of the "with" uses).
2008-08-14 14:00:44 +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
1b962fc720 * @-patterns as in Haskell. For instance, in a function definition
f = args @ {x, y, z}: ...;

  `args' refers to the argument as a whole, which is further
  pattern-matched against the attribute set pattern {x, y, z}.
2008-08-14 12:53:29 +00:00
Eelco Dolstra
e818838412 * "pattern" non-terminal. 2008-08-14 10:14:34 +00:00
Eelco Dolstra
efe4b690ae * Refactoring: combine functions that take an attribute set and
functions that take a single argument (plain lambdas) into one AST
  node (Function) that contains a Pattern node describing the
  arguments.  Current patterns are single lazy arguments (VarPat) and
  matching against an attribute set (AttrsPat).

  This refactoring allows other kinds of patterns to be added easily,
  such as Haskell-style @-patterns, or list pattern matching.
2008-08-14 10:04:22 +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
5664b6d7ba * Removed the "valid values" feature. Nobody uses it anyway. 2008-08-11 13:36:40 +00:00
Michael Raskin
b455c4c45c Updates to nix-reduce-build
Common code in local build package sources refactored out in a function; before building the real set of derivations needed is found (slightly slower for only one build strategy, but less garbage on output and better performance for multiple build strategies).

Now you have full choice of best-effort build regardless of method (substituters or actual build), using substituters, building only fixed derivations (should get you all the downloads) and local build without even trying substituters. 

Some minor fix in the help text about behavior with no package sources.
2008-08-06 19:43:53 +00:00
Eelco Dolstra
72f3ea7358 * Moved some stuff to the Nixpkgs manual.
* Updated the release notes.
2008-08-05 11:03:05 +00:00
Eelco Dolstra
98b07466fb * Better error checking of the data from the substituters. 2008-08-05 10:57:53 +00:00
Eelco Dolstra
339c142009 * Use optimistic profile locking for nix-env operations like `-i' and
`-u'.  Instead of acquiring an exclusive lock on the profile for the
  entire duration of the operation, we just perform the operation
  optimistically (without an exclusive lock), and check at the end
  whether the profile changed while we were busy (i.e., the symlink
  target changed).  If so, the operation is restarted.  Restarting is
  generally cheap, since the build results are still in the Nix store.
  Most of the time, only the user environment has to be rebuilt.
2008-08-04 16:21:45 +00:00
Eelco Dolstra
a87b5256e2 * Fix the tests. 2008-08-04 16:16:49 +00:00
Eelco Dolstra
001b3f06ec * `nix-env --set': support --dry-run. 2008-08-04 14:58:50 +00:00
Eelco Dolstra
7592f48c83 * nix-build: `--dry-run' flag. 2008-08-04 13:46:01 +00:00
Eelco Dolstra
a1d310b6b5 * `nix-store --realise': print what paths will be built/downloaded,
just like nix-env.
* `nix-store --realise': --dry-run option.
2008-08-04 13:44:46 +00:00
Eelco Dolstra
42043953c3 * Doh. 2008-08-04 13:15:47 +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
5b1052663a * Always show what paths we're going to build/download (as in
--dry-run).  Maybe there should be an option to turn this on/off?
2008-08-04 13:11:09 +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
Michael Raskin
b3c26180e3 Updates to nix-reduce-build: only realize fixed derivations if user asks so, or only use substituters. Oh, and add possibility to use : for things like /etc/nixos/nixpkgs:-A:gnused 2008-08-02 16:43:25 +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
fc691e1cbd * Print a better error message when a non-derivation attribute set is
coerced to a string.
2008-07-24 14:52:25 +00:00
Eelco Dolstra
096198d11f * A quick hack to make nix-prefetch-url support mirror:// URLs. It
requires that $NIXPKGS_ALL points at a Nixpkgs tree.
2008-07-23 16:02:58 +00:00
Eelco Dolstra
660244f65f * Make sure that copy-from-other-stores.pl is built. 2008-07-23 09:38:38 +00:00
Eelco Dolstra
e139d7fc68 * Fix the tests. 2008-07-18 20:03:12 +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
8bc591a6f0 * Use the copy-from-other-stores substituter by default. Of course,
it only does something if $NIX_OTHER_STORES (not really a good
  name...) is set.
* Do globbing on the elements of $NIX_OTHER_STORES.  E.g. you could
  set it to /mnts/*/nix or something.
* Install substituters in libexec/nix/substituters.
2008-07-18 13:05:10 +00:00
Eelco Dolstra
15f39aba8c * Quick prototype of a substituter that copies paths from other Nix
stores (typically remote Nix stores mounted via e.g. NFS, or the Nix
  store on the NixOS installation CD).  Example use:

  $ sshfs foo@example.org:/ /mnt
  $ NIX_OTHER_STORES=/mnt/nix \
    NIX_SUBSTITUTERS=.../copy-from-other-stores.pl \
    nix-env -i foo

  This will be especially useful for the installation CD since it
  doesn't require a manifest for the CD contents.
2008-07-12 18:58:24 +00:00
Eelco Dolstra
7cd88b1dec * Generalised the dependencyClosure primop to builtins.genericClosure,
which is hopefully more useful.
* New primops: length, mul, div.
2008-07-11 13:29:04 +00:00
Eelco Dolstra
d567baabbd * Export the nix-env derivation name parsing and version comparison
logic through the `parseDrvName' and `compareVersions' primops.
  This will allow expressions to easily check whether some dependency
  is a specific needed version or falls in some version range.  See
  tests/lang/eval-okay-versions.nix for examples.
2008-07-01 10:10:32 +00:00
Eelco Dolstra
b3b0b2a29e * `make ext-clean': remove the bzip2 build. 2008-06-23 13:52:28 +00:00
Eelco Dolstra
6c8641a542 2008-06-18 19:17:05 +00:00
Eelco Dolstra
5af84139a8 * --max-freed: support values >= 4 GB. 2008-06-18 15:20:33 +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
934c58aa38 * Use bzip2 1.0.5. 2008-06-17 08:12:12 +00:00
Eelco Dolstra
ee8f15930d * Test instrumentation. 2008-06-15 15:10:03 +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
94fd46fa1c * Note. 2008-06-14 16:02:31 +00:00
Michael Raskin
955b8841cd Also trying to build derivers in case we cannot get substituters 2008-06-14 08:48:40 +00:00
Michael Raskin
18e27629d3 Added local best-effort builds (i.e. one failure does not ruin all packages you would like to see built) 2008-06-14 08:30:35 +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
Michael Raskin
194c66eeeb Stupid error in script 2008-06-13 14:34:19 +00:00
Michael Raskin
f903d86740 OK, I will believe that fix does no worse.. 2008-06-13 13:53:14 +00:00
Michael Raskin
ce85b55cf0 Updated help text 2008-06-12 17:45:38 +00:00
Michael Raskin
4532e4b90d Added verbosity for nix-reduce-build 2008-06-12 16:26:53 +00:00
Eelco Dolstra
2818b7cee6 * Updated some URLs. 2008-06-11 15:39:38 +00:00