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Eelco Dolstra 6f5a5ea5ea * Regression fix: realise substitutes and detect cycles. 2004-02-13 10:45:09 +00:00
Eelco Dolstra 1ad9d11247 * Only include predecessors that are themselves being pushed. 
Otherwise the substitute mechanism can break in subtle ways.
 2004-02-13 10:43:31 +00:00
Eelco Dolstra 00fe1a506f * When creating a new generation, also make the normal form of the 
derivation (i.e., the closure store expression) a root of the
  garbage collector.  This ensures that running `nix-collect-garbage
  --no-successors' is safe.
 2004-02-11 10:25:31 +00:00
Eelco Dolstra 92e832348d * Lots of manual stuff. Reference pages for most Nix commands. 
* nix-pull now requires the full url to the manifest, i.e.,
  `/MANIFEST/' is no longer automatically appended.
* nix-prefetch-url works again.
 2004-02-10 16:14:47 +00:00
Eelco Dolstra 6551b36790 * Print what generation we are switching to; honour --dry-run flag. 2004-02-10 13:42:58 +00:00
Eelco Dolstra 0616b7feea * Documented the most important nix-env flags. 2004-02-10 11:51:16 +00:00
Eelco Dolstra 618aa69b01 * In --upgrade': added flags --lt', --leq', --always' to specify 
whether we want to upgrade if the current version is less than the
  available version (default), when it is less or equal, or always.
  
* Added a flag `--dry-run' to show what would happen in `--install',
  `--uninstall', and `--upgrade', without actually performing the
  operation.
 2004-02-09 11:59:39 +00:00
Eelco Dolstra 06a75a7e0c * A command `--switch-generation' to switch to a specific generation 
of the current profile, e.g.,

    $ nix-env --list-generations
    ...
    39   2004-02-02 17:53:53
    40   2004-02-02 17:55:18
    41   2004-02-02 17:55:41
    42   2004-02-02 17:55:50   (current)

    $ nix-env --switch-generation 39

    $ ls -l /nix/var/nix/profiles/default
    ... default -> default-39-link

* Also a command `--rollback' which is just a convenience operation to
  rollback to the oldest generation younger than the current one.

  Note that generations properly form a tree.  E.g., if after
  switching to generation 39, we perform an installation action,
  a generation 43 is created which is a descendant of 39, not 42.  So
  a rollback from 43 ought to go back to 39.  This is not currently
  implemented; generations form a linear sequence.
 2004-02-08 14:07:43 +00:00
Eelco Dolstra b8675aee54 * In `--list-generations', show what the current generation is. 2004-02-06 16:16:55 +00:00
Eelco Dolstra 73ab2ed4fd * A command `--list-generations' to show all generations for a 
profile.
 2004-02-06 16:03:27 +00:00
Eelco Dolstra 7c0fa4474f * More refactoring. 2004-02-06 14:57:10 +00:00
Eelco Dolstra 7abf9911d9 * Refactoring. 2004-02-06 14:49:41 +00:00
Eelco Dolstra 49bafe1faf * Use the profile pointed to by ~/.nix-profile if no --profile 
argument is specified.
 2004-02-06 10:59:06 +00:00
Eelco Dolstra 66e94d3275 * Improvements to profiles. Generations are now per-profile, e.g., 
default -> default-94-link
  default-82-link -> /nix/store/cc4480...
  default-83-link -> /nix/store/caeec8...
  ...
  default-94-link -> /nix/store/2896ca...
  experimental -> experimental-2-link
  experimental-1-link -> /nix/store/cc4480...
  experimental-2-link -> /nix/store/a3148f...

* `--profile' / `-p' -> `--switch-profile' / `-S'
* `--link' / `-l' -> `--profile' / `-p'
* The default profile is stored in $prefix/var/nix/profiles.
  $prefix/var/nix/links is gone.  Profiles can be stored anywhere.
* The current profile is now referenced from ~/.nix-profile, not
  ~/.nix-userenv.
* The roots to the garbage collector now have extension `.gcroot', not
  `.id'.
 2004-02-06 10:30:20 +00:00
Eelco Dolstra d445da7a7b * Extended the `inherit' syntax to optionally select attributes from 
other attribute sets, rather than the current scope.  E.g.,
  
    {inherit (pkgs) gcc binutils;}

  is equivalent to

    {gcc = pkgs.gcc; binutils = pkgs.binutils;}

  I am not so happy about the syntax.
 2004-02-04 17:23:26 +00:00
Eelco Dolstra 9d25466b34 * An attribute set update operator (//). E.g., 
{x=1; y=2; z=3;} // {y=4;}  =>  {x=1; y=4; z=3;}
 2004-02-04 16:49:51 +00:00
Eelco Dolstra 6d46e647ba * Fixed the old envpkgs filename. 2004-02-04 16:20:51 +00:00
Eelco Dolstra 9b44480612 * Use a map to lookup primops. 
* Various performance improvements in the evaluator.
* Do not link against unused (and missing!) libraries (-lsglr, etc.).
 2004-02-04 16:03:29 +00:00
Eelco Dolstra c4f7ae4aa5 * Verify that all variables in a Nix expression are defined. 2004-02-03 14:45:34 +00:00
Eelco Dolstra 1c9c0a5a46 * Added syntactic sugar to the construction of attribute sets to 
`inherit' variables from the surrounding lexical scope.

  E.g.,

    {stdenv, libfoo}: derivation {
      builder = ./bla;
      inherit stdenv libfoo;
      xyzzy = 1;
    }

  is equivalent to

    {stdenv, libfoo}: derivation {
      builder = ./bla;
      stdenv = stdenv;
      libfoo = libfoo;
      xyzzy = 1;
    }

  Note that for mutually recursive attribute set definitions (`rec
  {...}'), this also works, that is, `rec {inherit x;}' is equivalent
  to `let {fresh = x; body = rec {x = fresh;};}', *not*
  `rec {x = x}'.
 2004-02-02 21:39:33 +00:00
Eelco Dolstra d9f30fe7c7 * Sort `nix-env -q' output by derivation name. 
* `--version' flag for all commands.
* Manual updates.
 2004-02-02 10:51:54 +00:00
Eelco Dolstra 47c003cb59 * Doh! 2004-01-30 17:14:08 +00:00
Eelco Dolstra 619f20775d * Parser numbers again. 
* Include missing files in distributions.
 2004-01-30 17:06:03 +00:00
Eelco Dolstra c625718513 * Detect flex and bison; updated the manual. 2004-01-30 16:32:14 +00:00
Eelco Dolstra c5baaafae6 * Replaced the SDF parser by a substantially faster Bison/Flex 
parser (roughly 80x faster).

  The absolutely latest version of Bison (1.875c) is required for
  reentrant GLR support, as well as a recent version of Flex (say,
  2.5.31).  Note that most Unix distributions ship with the
  prehistoric Flex 2.5.4, which doesn't support reentrancy.
 2004-01-30 15:21:42 +00:00
Eelco Dolstra abd1878b26 * Optimised the SDF grammar. 2004-01-29 14:24:53 +00:00
Eelco Dolstra 3648d1c732 * Explicitly compute the release name. 2004-01-22 13:04:57 +00:00
Eelco Dolstra cdb50886f4 * Typos. 2004-01-22 09:35:35 +00:00
Eelco Dolstra 3c4bc7276a * Added a note about adding /nix/etc/profile.d/nix.sh to the profile. 2004-01-22 09:17:55 +00:00
Martin Bravenboer 4f72b408a5 Typos and url losser -> catamaran 2004-01-22 08:47:59 +00:00
Eelco Dolstra 840551ebdb * Extra bit S' in --query --status' output: show whether there are 
any substitutes for the derivation.
 2004-01-21 16:41:17 +00:00
Eelco Dolstra 1109ea0680 * Fixed a subtle uninitialised variable bug in ATermMaps copied from 
ATermMaps.  Found thanks to Valgrind!
 2004-01-21 14:49:32 +00:00
Eelco Dolstra 47f19b6293 * Absolutise the specified path in --import' and --profile'. 2004-01-20 20:36:58 +00:00
Eelco Dolstra 4db7ef3fcc * Fixed URL. 2004-01-20 17:18:41 +00:00
Eelco Dolstra 3778586b2a * Nix Quick Start guide. 2004-01-20 15:37:55 +00:00
Eelco Dolstra 8baf50f108 * Manual updates. 
* Updated the README.  Now it just refers to the manual.
 2004-01-20 11:49:32 +00:00
Eelco Dolstra 699989b216 * Ignore exit code from strip. 2004-01-19 09:01:28 +00:00
Eelco Dolstra 3a4a4aaa88 * Strip binaries in RPMs. 2004-01-19 08:49:25 +00:00
Eelco Dolstra f899e8ce4d * Test whether the symlink, not its target, exists. 2004-01-16 15:17:36 +00:00
Eelco Dolstra b1c5f3c10d * Doh! Edited readmanifest.pm' instead of readmanifest.pm.in'. 2004-01-16 14:54:39 +00:00
Eelco Dolstra 291030b900 * Remove debug message. 2004-01-15 20:58:44 +00:00
Eelco Dolstra 447089a5f6 * Catch SIGINT to terminate cleanly when the user tries to interrupt 
Nix.  This is to prevent Berkeley DB from becoming wedged.

  Unfortunately it is not possible to throw C++ exceptions from a
  signal handler.  In fact, you can't do much of anything except
  change variables of type `volatile sig_atomic_t'.  So we set an
  interrupt flag in the signal handler and check it at various
  strategic locations in the code (by calling checkInterrupt()).
  Since this is unlikely to cover all cases (e.g., (semi-)infinite
  loops), sometimes SIGTERM may now be required to kill Nix.
 2004-01-15 20:23:55 +00:00
Eelco Dolstra 08719c6c97 * Obsolete. 2004-01-15 20:13:54 +00:00
Eelco Dolstra 55e11bc0d3 * In nix-env --query --status', determine the I' bit by looking at 
the output path of a derivation, not the path of its store
  expression.  This ensures that changes that affect the path of the
  store expression but not the output path, do not affect the
  `installed' state of a derivation.
 2004-01-15 14:43:00 +00:00
Eelco Dolstra 9a404e45c9 * Synchronous nix-pull' with nix-push'. 
* Use curl instead of wget.
 2004-01-14 14:20:33 +00:00
Eelco Dolstra 16f9b133ec * Improved `nix-push': it now uses HTTP PUT (instead of rsync) to copy 
files.  Target location is no longer hard-coded; it accepts a number
  of URLs on the command line.

* `nix-install-package': compatibility fixes.
 2004-01-14 11:13:08 +00:00
Eelco Dolstra ff9af107d3 * Option `-B' to always show the output of builders, regardless of 
verbosity level.
 2004-01-13 16:35:43 +00:00
Eelco Dolstra 3495d153b3 * Periodically checkpoint the log. 2004-01-13 13:37:25 +00:00
Eelco Dolstra 698e880c9f * Tricky: make sure that the accessor count is not reset to 0 if 
recovery fails.
 2004-01-13 12:36:43 +00:00
Eelco Dolstra 23fbc72f5d * Print error messages, not debug messages. 2004-01-13 11:53:12 +00:00