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Author SHA1 Message Date
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 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 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 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 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
Eelco Dolstra 4c4fe7a114 * Changed the extension for store expressions from ".nix" to ".store" 
(following the Usenix paper).
 2004-01-12 10:44:48 +00:00
Eelco Dolstra 46a71c857c * Option --force-realise' in nix-store --query'. 2004-01-09 14:18:28 +00:00
Eelco Dolstra 7959354379 * Upgraded to Berkeley DB 4.2.52. The main advantage of 4.2 is that 
it automatically removes log files when they are no longer needed.

  *** IMPORTANT ***

  If you have an existing Nix installation, you must checkpoint the
  Nix database to prevent recent transactions from being undone.  Do
  the following:

  - optional: make a backup of $prefix/var/nix/db.

  - run `db_checkpoint' from Berkeley DB 4.1:
  
    $ db_checkpoint -h $prefix/var/nix/db -1

  - optional (?): run `db_recover' from Berkeley DB 4.1:

    $ db_recover -h $prefix/var/nix/db

  - remove $prefix/var/nix/db/log* and $prefix/var/nix/db/__db*
 2004-01-07 15:53:14 +00:00
Eelco Dolstra 4a373a3e9a * Implemented Eelco V.'s `nix-env -I' command to specify the default 
path of the Nix expression to be used with the import, upgrade, and
  query commands.  For instance,

  $ nix-env -I ~/nixpkgs/pkgs/system/i686-linux.nix

  $ nix-env --query --available   [aka -qa]
  sylpheed-0.9.7
  bison-1.875
  pango-1.2.5
  subversion-0.35.1
  ...

  $ nix-env -i sylpheed

  $ nix-env -u subversion

  There can be only one default at a time.

* If the path to a Nix expression is a symlink, follow the symlink
  prior to resolving relative path references in the expression.
 2004-01-05 16:26:43 +00:00
Eelco Dolstra f83c5e3e5f * Implemented Eelco V.'s `-p' command to switch profiles. It switches 
the symlink ~/.nix-userenv to the given argument (which defaults to
  .../links/current).  /etc/profile.d/nix-profile creates this symlink
  if it doesn't exist yet.  Example use:

  $ nix-env -l my_profile -i foo.nix subversion quake
  $ nix-env -p my_profile

  I don't like the term "profile".  Let's deprecate it :-)
 2004-01-05 11:18:59 +00:00
Eelco Dolstra 94175e978a * RPM spec file. 
* Respect DESTDIR variable.
 2003-12-30 20:09:00 +00:00
Eelco Dolstra 392b7e0f8e * Fixed a bug in the upgrade operation. 2003-12-23 22:13:36 +00:00
Eelco Dolstra 833f2fc92d * GCC 2.95 compatibility. 2003-12-22 16:40:46 +00:00
Eelco Dolstra cf0287c09e * Upgrade operation in `nix-env'. For instance, you can say 
nix-env -u foo.nix strategoxt

  to replace the installed `strategoxt' derivation with the one from `foo.nix', if 
  the latter has a higher version number.  This is a no-op if `strategoxt' is not 
  installed.  Wildcards are also accepted, so

    nix-env -u foo.nix '*'

  will replace any installed derivation with newer versions from `foo.nix', if 
  available.

  The notion of "version number" is somewhat ad hoc, but should be useful in most 
  cases, as evidenced by the following unit tests for the version comparator:

    TEST("1.0", "2.3", -1);
    TEST("2.1", "2.3", -1);
    TEST("2.3", "2.3", 0);
    TEST("2.5", "2.3", 1);
    TEST("3.1", "2.3", 1);
    TEST("2.3.1", "2.3", 1);
    TEST("2.3.1", "2.3a", 1);
    TEST("2.3pre1", "2.3", -1);
    TEST("2.3pre3", "2.3pre12", -1);
    TEST("2.3a", "2.3c", -1);
    TEST("2.3pre1", "2.3c", -1);
    TEST("2.3pre1", "2.3q", -1);

  (-1 = less, 0 = equal, 1 = greater)

* A new verbosity level `lvlInfo', between `lvlError' and `lvlTalkative'.  This is 
  the default for `nix-env', so without any `-v' flags users should get useful 
  output, e.g.,

$ nix-env -u foo.nix strategoxt
upgrading `strategoxt-0.9.2' to `strategoxt-0.9.3'
 2003-12-22 16:04:00 +00:00
Eelco Dolstra f3c9783846 * Version numbers can be omitted in install/uninstall. E.g., 
nix-env -i foo.nix subversion

  The version number part of a derivation name is defined as everything following the 
  first dash not followed by a letter.
 2003-12-21 23:58:56 +00:00
Eelco Dolstra a81b621202 * -u' -> -e'. 
* `--link' / `-l' flag to specify the switch symlink to use (by default, 
  /nix/var/nix/links/current).
 2003-12-21 22:34:41 +00:00
Eelco Dolstra 528f1d1867 * Bug fix: parallel builds of the same derivation failed due to lock file removal. 2003-12-21 17:09:16 +00:00
Eelco Dolstra cff6fd22eb * Allow successors that don't exist but have a substitute. 
* Integrity: check in successor / substitute registration whether
  the target path exists or has a substitute.
 2003-12-05 11:05:19 +00:00
Eelco Dolstra 0d3a1a8582 * Add missing files to `make dist'. 2003-12-02 12:37:37 +00:00
Eelco Dolstra 0c804c6775 * Regression fix: query flags (e.g., "-qsf") were broken. 2003-12-02 10:21:40 +00:00
Eelco Dolstra 078e20885e * Help text for all (non-script) programs, so no more: 
$ nix-instantiate --help
error: unknown flag `--help`
Try `nix-instantiate --help' for more information.

:-)
 2003-12-01 15:55:05 +00:00
Eelco Dolstra 83ffd4f282 * Fix `make check'. 2003-12-01 14:40:24 +00:00
Eelco Dolstra 5d2b424804 * Use a system name that does not include the OS manufacturer (i.e., 
"i686-linux" instead of "i686-suse-linux").
 2003-12-01 14:36:50 +00:00
Eelco Dolstra ba73f94b3b * Another fix. 2003-11-25 13:03:48 +00:00
Eelco Dolstra 66c115ef5f * More `make dist' fixes. 2003-11-25 13:01:21 +00:00
Eelco Dolstra c3ee8c9166 * `make dist' fix. 2003-11-25 12:35:52 +00:00
Eelco Dolstra 6e8c19714a * Allow integer bindings in derivations. 2003-11-25 12:05:48 +00:00
Eelco Dolstra b857267893 * Allow the top-level expression to be a derivation. 
* Hack: `nix-env -i *' installs all available derivations.
 2003-11-24 11:01:19 +00:00
Eelco Dolstra c9cb1fa21f * Bug fix in path invalidation. 
* More consistency checks.
 2003-11-24 09:24:52 +00:00
Eelco Dolstra af7e6fe22e * Don't use a hard-coded path. 2003-11-22 21:12:36 +00:00
Eelco Dolstra 9486dda115 * Fix nix-push. 2003-11-22 20:39:51 +00:00
Eelco Dolstra ab0bc4999a * Maintain integrity of the substitute and successor mappings when 
deleting a path in the store.
* Allow absolute paths in Nix expressions.
* Get nix-prefetch-url to work again.
* Various other fixes.
 2003-11-22 18:45:56 +00:00
Eelco Dolstra 40d9eb14df * Fix the garbage collector. 2003-11-22 15:58:34 +00:00
Eelco Dolstra 7a02d95418 * Remove lock files after building. 2003-11-21 16:05:19 +00:00
Eelco Dolstra 06208d1d86 * Uninstallation. 2003-11-21 14:23:18 +00:00
Eelco Dolstra 2e9042bd1e * Uninstall command (doesn't work yet). 2003-11-20 13:48:48 +00:00
Eelco Dolstra e0b5a492f5 * Installation: add the previously installed packages. Switch to the new 
configuration.
* Status queries.
 2003-11-19 21:32:03 +00:00
Eelco Dolstra 9898746ef3 * nix-env: a tool to manage user environments. 
* Replace all directory reading code by a generic readDirectory()
  function.
 2003-11-19 17:27:16 +00:00
Eelco Dolstra fd7ac09f10 * Refactoring (step 2). 2003-11-19 12:03:01 +00:00
Eelco Dolstra ac68840e79 * Refactoring: put the Nix expression evaluator in its own library so 
that it can be used by multiple programs.
 2003-11-19 11:35:41 +00:00
Eelco Dolstra 2be8b5917a * Use `sdftable -s' to get warnings about the grammar. 
* Several bug fixes in the grammar.
* Allow one-line comments (#... and //...) to end in EOF.
 2003-11-19 10:04:03 +00:00
Eelco Dolstra dfc9c64ead * "Fix expression" -> "Nix expression". 
* More refactoring.
 2003-11-18 12:06:07 +00:00
Eelco Dolstra b1117ef29d * nix -> nix-store, fix -> nix-instantiate. 2003-11-18 11:38:25 +00:00
Eelco Dolstra ce92d1bf14 * "Nix expression" -> "store expression". 
* More refactoring.
 2003-11-18 11:22:29 +00:00
Eelco Dolstra 9f0f020929 * libnix -> libstore. 2003-11-18 10:55:27 +00:00
Eelco Dolstra 8798fae304 * Source tree refactoring. 2003-11-18 10:47:59 +00:00
Eelco Dolstra 45610ae675 * An forward non-random access input iterator class for ATermLists. 2003-11-16 18:31:29 +00:00
Eelco Dolstra 3e5a019a07 * Some utility functions for working with ATerms. 2003-11-16 17:46:31 +00:00
Eelco Dolstra 06ae269c7c * Do not filter when parsing. This is much faster. 
* Add some rejections and lexical restrictions to the grammar to make
  this work.
 2003-11-10 11:00:38 +00:00
Eelco Dolstra 15801c88fa * Turned the msg() and debug() functions into macros, since they 
turned out to be a huge performance bottleneck (the text to printed
  would always be evaluated, even when it was above the verbosity
  level).  This reduces fix-ng execution time by over 50%.

  gprof(1) is very useful. :-)
 2003-11-09 10:35:45 +00:00
Eelco Dolstra 90e26d392c * Allow null in derivation bindings. 2003-11-06 15:24:31 +00:00
Eelco Dolstra cfaea07444 * `null' is a nullary primop. 2003-11-06 14:41:49 +00:00
Eelco Dolstra 569e7940f8 * Allow `+' in path names. 2003-11-06 14:41:29 +00:00
Eelco Dolstra fa18f1f184 * Assertions. 
* Logical operators (!, &&, ||, ->).
 2003-11-05 16:27:40 +00:00
Eelco Dolstra e17e95a828 * Print a shared textual ATerm if the term if very large. Due to 
substitutions, Fix terms are very large when printed as trees (in 
  memory, they are quite compact due to sharing).
 2003-11-05 16:20:57 +00:00
Eelco Dolstra 80bb477cc4 * Default function arguments. 2003-11-05 15:34:12 +00:00
Eelco Dolstra 0690c1c9c0 * Work around problems with the ATerm library. 
The ATerm library doesn't search the heap for pointers to ATerms
  when garbage collecting.  As a result, C++ containers such as
  `map<ATerm, ATerm>' will cause pointer to be hidden from the garbage
  collector, causing crashes.  Instead, we now use ATermTables.
 2003-11-03 20:30:40 +00:00
Eelco Dolstra ff31324278 * Ignore options passed to the aterm library. 2003-11-03 18:21:53 +00:00
Eelco Dolstra e2655aa332 * Shorter list syntax ([a b c] instead of [a, b, c]). 2003-11-03 11:59:35 +00:00
Eelco Dolstra ad0976f8d5 * Grammar changes. Attributes in attribute sets are now delimited with 
semicolons instead of comma's.  Final semicolon in the set is optional.
 2003-11-03 10:21:30 +00:00
Eelco Dolstra 40986312bb * Boolean constants. 2003-11-02 17:36:15 +00:00
Eelco Dolstra adf9a45469 * Primops: baseNameOf, toString. 2003-11-02 16:31:35 +00:00
Eelco Dolstra c8268ca991 * Fast builds. 2003-11-01 23:29:02 +00:00
Eelco Dolstra 7de1b2a698 * Print the exit code of the builder. 2003-11-01 21:11:52 +00:00
Eelco Dolstra 1610444671 * Conditions, string equality. 2003-11-01 19:15:08 +00:00
Eelco Dolstra 1b4184ccbb * Let syntax. 2003-11-01 19:10:41 +00:00
Eelco Dolstra a2a9bacd82 * Filter the substitution list when descending into a recursive 
attribute set.
 2003-11-01 19:10:19 +00:00
Eelco Dolstra 9210d4d530 * Working evaluator. 
* Mutually recursive attribute sets.
* Print evaluator efficiency statistics.
 2003-10-31 17:09:31 +00:00
Eelco Dolstra f1c1a3c97f * Allow empty attribute (argument) sets. 2003-10-31 12:21:01 +00:00
Eelco Dolstra 7db08cc924 * Use SGparseString() instead of SGparseFile() because the latter is 
buggy.  It fails to clear an internal variable (SG_textIndex)
  between invocations, so it can be called only once during a program
  execution.
 2003-10-31 11:22:56 +00:00
Eelco Dolstra 403cb9327f * Factor out evaluation into a separate file. 2003-10-30 16:48:26 +00:00
Eelco Dolstra 9f8f39aa3c * Clean up the imploded parse tree. Quotes around strings are 
removed, paths are absolutised relative to the path containing the
  expression we just parsed, and integer literals are converted to
  actual integers.
 2003-10-30 16:18:40 +00:00
Eelco Dolstra e537844f4e * Bottomup rewrite function. 2003-10-30 16:11:24 +00:00
Eelco Dolstra 442b09ea33 * Don't use a search path. 2003-10-30 16:10:56 +00:00
Eelco Dolstra 933b3f677d * Attribute selection operator. 2003-10-30 16:10:20 +00:00
Eelco Dolstra b95a3dc45b * Basic grammar and parser for the Fix language. We use libsglr and 
friends to do the parsing.  The parse table is embedded in the Fix
  executable using bin2c, which converts an arbitrary file into a C
  character array.
 2003-10-29 16:05:03 +00:00
Eelco Dolstra 4d728f6a36 * Forked new version of Fix. 2003-10-29 15:05:18 +00:00
Eelco Dolstra 92eea8fc4e * Fix a race condition in addTextToStore(). 2003-10-23 10:51:55 +00:00
Eelco Dolstra c4e7d324b8 * Use writeFull(). 2003-10-22 13:29:40 +00:00
Eelco Dolstra 9d95aafe8c * Ad hoc per-package logging. When Nix performs a derivation, it now 
writes stdout/stderr of the builder to ${prefix}/var/log/nix/x,
  where x is the file name of the derivation expression, e.g.,

    /nix/var/log/nix/54256391624be04fcb426048ae3ea0a4-d-pan-0.14.2.nix

  Note that consecutive builds of the same expression overwrite,
  rather than append to, existing log files.
 2003-10-22 11:04:57 +00:00
Eelco Dolstra 143427f90b * Dead code removal. 2003-10-22 10:53:46 +00:00
Eelco Dolstra 4a8948b7a6 * Some wrapper classes to ensure that file descriptors / directory 
handles are closed when they go out of scope.
 2003-10-22 10:48:22 +00:00
Eelco Dolstra c62433751d * Finished refactoring the tree. 2003-10-20 10:05:01 +00:00
Eelco Dolstra 53e376d836 * Refactored the source tree. 2003-10-20 09:20:11 +00:00
Eelco Dolstra 0791282b2f * Substitutes and nix-pull now work again. 
* Fixed a segfault caused by the buffering of stderr.
* Fix now allows the specification of the full output path.  This
  should be used with great care, since it by-passes the normal hash
  generation.
* Incremented the version number to 0.4 (prerelease).
 2003-10-16 16:29:57 +00:00
Eelco Dolstra c78bf11524 * Enable buffering of stderr in C++. 2003-10-16 11:55:37 +00:00
Eelco Dolstra f7c7aad135 * Upgraded to Berkeley DB 4.1.25 and do not synchronously flush the 
log on commit.  This means that there is a small change that some
  transactions may be rolled back in case of a system crash, but this
  should not be a problem (it merely might cause some expression
  realisations to be rolled back), and it vastly improves performance.

* Upgraded to ATerm 2.0.5 (which also includes Armijn's 64-bit
  patches).
 2003-10-16 08:52:44 +00:00
Eelco Dolstra 181aa3dc41 * Don't sort the result of `--query --list'. 2003-10-16 08:06:19 +00:00
Eelco Dolstra ebff82222c * Refactoring: move all database manipulation into store.cc. 
* Removed `--query --generators'.
 2003-10-15 12:42:39 +00:00
Eelco Dolstra c190f051ac * Automatically recover the database in case of a crash. 2003-10-14 15:33:00 +00:00
Eelco Dolstra 1d61e473c8 * New query `nix --query --predecessors' to print the predecessors of 
a Nix expression.
 2003-10-10 15:25:21 +00:00
Eelco Dolstra 0abe185688 * `nix --verify': check and repair reverse mapping for successors. 2003-10-10 15:14:29 +00:00
Eelco Dolstra d3d5e77810 * Reverse mappings for the successor and substitute mappings. 2003-10-10 14:46:28 +00:00
Eelco Dolstra 1eb4da156c * Performance improvement: don't register already registered terms, 
thus greatly reducing the number of db transactions.
 2003-10-10 13:22:29 +00:00
Eelco Dolstra 6baa2c4420 * Get rid of identifiers since they are redundant now. This greatly 
simplifies stuff.

* The format of Nix expressions and the database schema changed
  because of this, so it's best to delete old Nix installations.
 2003-10-08 15:06:59 +00:00
Eelco Dolstra b9f4942bd2 * string -> Path. 2003-10-07 14:37:41 +00:00
Eelco Dolstra 5d4171f7fb * Synchronise terminology with the ICSE paper (e.g., slice -> closure, 
fstate -> Nix expression).
* Fix src/test.cc.
 2003-10-07 12:27:49 +00:00
Eelco Dolstra e78f753aa8 * Include the right files in a distribution. 2003-10-02 12:22:19 +00:00
Eelco Dolstra 4193d62e08 * Nix now respects $TMPDIR for the creation of temporary build directories. 
* Retry creation of a temporary directory (with a different name) in the 
  case of EEXIST.
 2003-10-02 11:55:38 +00:00
Eelco Dolstra 1c7d6bf5fc * Removed references to char_traits so that boost/format also works on 
GCC 2.95.
 2003-09-11 10:23:55 +00:00
Eelco Dolstra d930a9bc5a * Added some missing #includes. 2003-09-11 08:31:29 +00:00
Eelco Dolstra 803a924b77 * Make nicer dot graphs. Also show the inner structure of slices. 2003-09-03 14:49:58 +00:00
Eelco Dolstra c0bbed0959 * Factored out dot graph generation into a separate file. 2003-09-03 11:20:18 +00:00
Eelco Dolstra 0d2bc68681 * Do not show the output of the builder unless the verbosity is at 
least at debug level (-vvv).  The output is still appended to the 
  build log in /nix/var/log/nix.
 2003-08-29 13:12:30 +00:00
Eelco Dolstra b018517314 * Do not try to remove write permission from symlinks, since chmod() 
follows symlinks.  (Note that the permissions on symlinks are
  ignored anyway.)
 2003-08-28 10:51:14 +00:00
Eelco Dolstra 31be53cd0a * Fix the atrocious (exponential? factorial?) time complexity in 
`nix --query --requisites'.
 2003-08-25 14:56:11 +00:00
Eelco Dolstra a88144215c * Remove write permission from output paths after they have been built. 
* Point $HOME to a non-existing path when building to prevent certain tools (such as 
  wget) from falling back on /etc/passwd to locate the home directory (which we 
  don't want them to look at since it's not declared as an input).
 2003-08-22 20:12:44 +00:00
Eelco Dolstra 956801fcc2 * Use maps and sets in the FState data type. This ensures normalisation of 
slices and derivations w.r.t. order of paths, slice elements, etc.
 2003-08-20 14:11:40 +00:00
Eelco Dolstra 624c48260f * Change the abstract syntax of slices. It used to be that ids were used as 
keys to reference slice elements, e.g.,

    Slice(["1ef7..."], [("/nix/store/1ef7...-foo", "1ef7", ["8c99..."]), ...])

  This was wrong, since ids represent contents, not locations.  Therefore we
  now have:

    Slice(["/nix/store/1ef7..."], [("/nix/store/1ef7...-foo", "1ef7", ["/nix/store/8c99-..."]), ...])

* Fix a bug in the computation of slice closures that could cause slice
  elements to be duplicated.
 2003-08-20 12:39:56 +00:00
Eelco Dolstra ed0db2e0d8 * Fixed a serious bug in the computation of slices. Sometimes the slices 
would not be properly closed under the path reference relation.
 2003-08-20 11:30:45 +00:00
Eelco Dolstra 1472cc4825 * Pipe /dev/null into stdin. 2003-08-19 13:07:38 +00:00
Eelco Dolstra 2de8504791 * Delete the temporary directories of failed builds by default, and an 
option `--keep-failed' to override this behaviour.
 2003-08-19 09:04:47 +00:00
Eelco Dolstra 31e4aa6439 * Allow lists in package bindings, e.g., 
("srcs", [Relative("foo/bar.c"), Relative("foo/baz.h")])

  The result is an environment variable that contains the path names of the
  inputs separated by spaces (so this is not safe for values containing
  spaces).
 2003-08-18 16:32:55 +00:00
Eelco Dolstra ebbb6ce578 * Most shells initialise PATH to some default (/bin:/usr/bin:...) 
when PATH is not set.  We don't want this, so fill it in with
  some dummy value.
 2003-08-18 14:54:54 +00:00
Eelco Dolstra 96c7b98bf0 * Argument support in Fix. Arguments can be passed through the 
builder using the `args' binding:

  ("args", ["bla", True, IncludeFix("aterm/aterm.fix")])

  Note that packages can also be declared as inputs by specifying them
  in the argument list.
 2003-08-15 13:01:45 +00:00
Eelco Dolstra 555347744d * Derivation expressions now can specify arguments to be passed to the 
builder.  Note that this unfortunately causes all Fix-computed
  hashes to change.
 2003-08-15 12:32:37 +00:00
Eelco Dolstra 163db7367f * Fix can now read expressions from stdin (by saying `fix -'). 2003-08-15 09:21:19 +00:00
Eelco Dolstra dc0ef2ca98 * Detect infinite loops using blackholing. 2003-08-14 12:37:31 +00:00
Eelco Dolstra 5cde23f869 * Function() takes a list of formals. 2003-08-14 09:49:31 +00:00
Eelco Dolstra 0a2de7f543 * Lam -> Function. Doh! 2003-08-14 09:29:07 +00:00
Eelco Dolstra c602930e08 * deletePath(): some operating systems (e.g., Mac OS X) don't like it 
when we delete entries from a directory while we are reading it.
  So read the directory into memory, then delete its contents.
 2003-08-08 14:55:56 +00:00
Eelco Dolstra 236eb59293 * Allow locks on paths to be acquired recursively (that is, if the 
process is already holding a lock on a path, it may acquire the lock
  again without blocking or failing).  (This might be dangerous, not
  sure).  Necessary for fast builds to work.
 2003-08-06 09:34:04 +00:00
Eelco Dolstra 720f06e3b0 * A flag `--flat' to just compute the MD5 checksum of the contents of 
a regular file.  I.e., `nix-hash --flat' is equivalent to the
  coreutils `md5sum' command (which doesn't exist on all systems).
 2003-08-06 09:06:32 +00:00
Eelco Dolstra 37483672d4 * App -> Call. 
* Allow booleans in package environment bindings (True maps to "1",
  False maps to "").
 2003-08-06 09:05:04 +00:00
Eelco Dolstra d34b4d4f28 * Conditionals. 2003-08-05 13:05:30 +00:00
Eelco Dolstra 4ce652640b * Cache result of fstatePaths(). TODO: do this in fstore.cc. 2003-08-05 12:29:47 +00:00
Eelco Dolstra 17f05dba77 * Allow the top-level expression to be a list of expressions that 
normalise to Nix expression.
 2003-08-05 11:13:38 +00:00
Eelco Dolstra d6b6b2d3a8 * Delete obstructed paths prior to building. 2003-08-05 09:47:20 +00:00
Eelco Dolstra d2e963f7a3 * Path locking in addToStore() and expandPath(). 2003-08-04 07:09:36 +00:00
Eelco Dolstra c95b4ad290 * In normaliseFState(), wrap registration of the output paths and the 
normal form in a single transaction to ensure that if we crash,
  either everything is registered or nothing is.  This is for
  recoverability: unregistered paths in the store can be deleted
  arbitrarily, while registered paths can only be deleted by running
  the garbage collector.
 2003-08-01 15:41:47 +00:00
Eelco Dolstra d99d04e644 * Defensive programming against POSIX locking idiocy. 
* Simplified realiseSlice().
 2003-08-01 15:06:23 +00:00
Eelco Dolstra 545145cd58 * normaliseFState() now locks all output paths prior to building, thus 
ensuring that simultaneous invocations of Nix don't clobber
  each other's  builds.

* Fixed a bug in `make install'.
 2003-08-01 14:11:19 +00:00
Eelco Dolstra 9df93f30bd * Don't use substitutes in addToStore(). 2003-08-01 09:01:51 +00:00
Eelco Dolstra 06434072e7 * Put the database verifier in a transaction. 2003-07-31 19:49:11 +00:00