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Author SHA1 Message Date
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
Eelco Dolstra 06d3d7355d * Enclose most operations that update the database in transactions. 
* Open all database tables (Db objects) at initialisation time, not
  every time they are used.  This is necessary because tables have to
  outlive all transactions that refer to them.
 2003-07-31 16:05:35 +00:00
Eelco Dolstra 177a7782ae * Use a more reasonable log file size (256 KB instead of 10 MB). 
* Checkpoint on exit.
 2003-07-31 14:28:49 +00:00
Eelco Dolstra 4a013962bd * Started using Berkeley DB environments. This is necessary for 
transaction support (but we don't actually use transactions yet).
 2003-07-31 13:47:13 +00:00
Eelco Dolstra 758bd4673a * Set execute bit. 2003-07-31 13:13:27 +00:00
Eelco Dolstra 83075304e5 * Don't make the builder executable. 2003-07-30 09:49:47 +00:00
Eelco Dolstra 8846465934 * Get garbage collection and cache population to work *properly*. 
Renamed `fstateRefs' to `fstateRequisites'.  The semantics of this
  function is that it returns a list of all paths necessary to realise
  a given expression.  For a derive expression, this is the union of
  requisites of the inputs; for a slice expression, it is the path of
  each element in the slice.  Also included are the paths of the
  expressions themselves.  Optionally, one can also include the
  requisites of successor expressions (to recycle intermediate
  results).

* `nix-switch' now distinguishes between an expression and its normal
  form.  Usually, only the normal form is registered as a root of the
  garbage collector.  With the `--source-root' flag, it will also
  register the original expression as a root.

* `nix-collect-garbage' now has a flag `--keep-successors' which
  causes successors not to be included in the list of garbage paths.

* `nix-collect-garbage' now has a flag `--invert' which will print all
  paths that should *not* be garbage collected.
 2003-07-29 14:28:17 +00:00
Eelco Dolstra dc14a3de46 * Nicer dot graphs. 2003-07-29 10:53:27 +00:00
Eelco Dolstra 79ba0431db * `fstateRefs' now works on derive expressions as well. TODO: make 
this more efficient.
* A flag `-n' in 'nix --query' to normalise the argument.  Default is
  not to normalise.
 2003-07-29 10:43:12 +00:00
Eelco Dolstra 5acb45446e * Let `nix --install' print out the id of the normal form. 
* Some minor refactoring.
 2003-07-29 09:45:03 +00:00
Eelco Dolstra 949c4fa1a8 * `nix --help'. 
* `nix --query --graph' to print a dot dependency graph of derive
  expressions.
 2003-07-28 12:19:23 +00:00
Eelco Dolstra f21b341957 * Fix message. 2003-07-24 15:03:36 +00:00
Eelco Dolstra 0a0c1fcb4d * The `-v' flag no longer takes an argument; it should be repeated 
instead (e.g., `-vvvv' for lots of output).  Default is to only
  print error messages.
 2003-07-24 13:43:16 +00:00
Eelco Dolstra 3b521bb1bd * Do sync the database, since not doing so caused database changes not 
to reach the disk at all.  Looks like a bug.
 2003-07-24 13:35:17 +00:00
Eelco Dolstra 1a7468a57a * Debug levels. Use `--verbose / -v LEVEL' to display only messages 
up to the given verbosity levels.  These currently are:

    lvlError = 0, 
    lvlNormal = 5,
    lvlDebug = 10,
    lvlDebugMore = 15

  although only lvlError and lvlDebug are actually used right now.
 2003-07-24 08:53:43 +00:00
Eelco Dolstra b75719b984 * Don't sync the database on close. This was killing performance. 
(Of course, the real problem is that we open the database for
  *every* operation; we should only open it once.  And we should use
  transactions.)
 2003-07-24 08:24:32 +00:00
Eelco Dolstra 39ce70025b * Incorporated Berkeley DB and ATerm into the source tree. 
* `make dist'.
 2003-07-23 15:53:34 +00:00
Eelco Dolstra 9202570f8c * libdb_cxx-4 -> libdb_cxx 2003-07-22 20:02:33 +00:00
Eelco Dolstra e877c69d78 * Substitutes now should produce a path with the same id as they are 
substituting for (obvious, really).

* For greater efficiency, nix-pull/unnar will place the output in a
  path that is probably the same as what is actually needed, thus
  preventing a path copy.

* Even if a output id is given in a Fix package expression, ensure
  that the resulting Nix derive expression has a different id.  This
  is because Nix expressions that are semantically equivalent (i.e.,
  build the same result) might be different w.r.t. efficiency or
  divergence.  It is absolutely vital for the substitute mechanism
  that such expressions are not used interchangeably.
 2003-07-22 15:15:15 +00:00
Eelco Dolstra df648c4967 * nix --query --expansion' (-qe') to get any path with content 
corresponding to the given id.
 2003-07-22 10:24:22 +00:00
Eelco Dolstra d5ee6f8700 * In `--query --generators', print out paths, not ids. 
(There should really be a switch for this).
 2003-07-21 21:31:03 +00:00
Eelco Dolstra 2616e6a6f3 * Check for errors. 2003-07-21 20:58:34 +00:00
Eelco Dolstra 9f4ad99e92 * Canonicalise path. 2003-07-21 20:58:21 +00:00
Eelco Dolstra 249988a787 * Allow the output/expression id to be forced to a certain 
value; this potentially dangerous feature enables better 
  sharing for those paths for which the content is known in 
  advance (e.g., because a content hash is given).
* Fast builds: if we can expand all output paths of a derive 
  expression, we don't have to build.
 2003-07-21 20:07:12 +00:00
Eelco Dolstra 49231fbe41 * Changes to the command line syntax of Nix. 
* A function to find all Nix expressions whose output ids are
  completely contained in some set.  Useful for uploading relevant Nix
  expressions to a shared cache.
 2003-07-21 14:46:01 +00:00
Eelco Dolstra 401452e57a * Memoize the evaluation of Fix expressions to speed up computation. 2003-07-21 08:55:49 +00:00
Eelco Dolstra 7984cfc7c1 * Argh, another short-write problem. Added wrappers around 
read()/write() to fix this once and for all.
 2003-07-20 21:11:43 +00:00
Eelco Dolstra 667a6afb9d * Remove accidentally added file. 2003-07-20 19:30:53 +00:00
Eelco Dolstra 6f1a0f948d * Refactorings. 2003-07-20 19:29:38 +00:00
Eelco Dolstra b3fc38bf6a * For debugging: `nix --verify' to check the consistency of the 
database and store.
 2003-07-17 12:27:55 +00:00
Eelco Dolstra 71cc3ceae5 * Preserve the executable bit. 2003-07-17 11:25:14 +00:00
Eelco Dolstra 54664b6fb7 * The write() system call can write less than the requested 
number of bytes, e.g., in case of a signal like SIGSTOP.  
  This caused `nix --dump' to fail sometimes.

  Note that this bug went unnoticed because the call to `nix 
  --dump' is in a pipeline, and the shell ignores non-zero 
  exit codes from all but the last element in the pipeline.  
  Is there any way to check the result of the initial elements
  in the pipeline?  (In other words, is it at all possible to 
  write reliable shell scripts?)
 2003-07-16 21:24:02 +00:00
Eelco Dolstra 6822fd7bf4 * Bug fix: slices are transitive, so if we detect that an 
input path is referenced in an output paths, we also have to 
  add all ids referenced by that input path.
* Better debug assertions to catch these sorts of errors.
 2003-07-16 20:33:29 +00:00
Eelco Dolstra 9d56ca219f * Substitute fixes. 2003-07-16 20:00:51 +00:00
Eelco Dolstra b9ecadee6e * Fix the -qr query. 2003-07-16 11:05:59 +00:00
Eelco Dolstra c11bbcfd26 * Fix self-referential outputs. 
* Fix -qp query.
 2003-07-16 08:30:26 +00:00
Eelco Dolstra d41d085b77 * Get Fix and Nix to work again. 2003-07-15 22:28:27 +00:00
Eelco Dolstra 7b3f44e05b * The new normaliser now passes the unit tests. 2003-07-15 21:24:05 +00:00
Eelco Dolstra f5b6fa5256 * Basic work on allowing derive expressions to build multiple paths. 
This is not entirely trivial since this introduces the possibility
  of mutual recursion.
* Made normal forms self-contained.
* Use unique ids, not content hashes, for content referencing.
 2003-07-15 16:28:54 +00:00
Eelco Dolstra 3509299aca * After building, scan for actual file system references as 
opposed to declared references.  This prunes the reference
  graph, thus allowing better garbage collection and more
  efficient derivate distribution.
 2003-07-14 10:23:11 +00:00
Eelco Dolstra 135b7d54db * Don't check for staleness by default. 2003-07-13 21:43:57 +00:00
Eelco Dolstra e6363b05ae * Pass $(prefix) and other variables through -D..., not 
through config.h, to prevent silly Autoconf problems.
 2003-07-13 19:26:00 +00:00
Eelco Dolstra 9c620e4afa * Generate the scripts so that we can substitute the prefix 
etc. correctly.
* Fixed nix-switch.
 2003-07-13 18:58:03 +00:00
Eelco Dolstra 73b163c1a1 * Fix a bug that caused Fix not to be deterministic (due to addToStore 
returning different paths if the hash of the path to be added was
  already available in the store under a different name).
 2003-07-11 08:41:03 +00:00
Eelco Dolstra c834a5c597 * Fix handling of pipes (read(2) may not return the required 
number of bytes in one call).
 2003-07-11 08:16:15 +00:00
Eelco Dolstra e5fbf58041 * A command to register successor fstate expressions. 
Unifying substitutes and successors isn't very feasible for now,
  since substitutes are only used when no path with a certain is
  known.  Therefore, a normal form of some expression stored as a
  substitute would not be used unless the expression itself was
  missing.
 2003-07-10 18:48:11 +00:00
Eelco Dolstra 1d1c3691d2 * The policy-free derivate sharing now *almost* works. :-) For any 
hash for which no local expansion is available, Nix can execute a
  `substitute' which should produce a path with such a hash.

  This is policy-free since Nix does not in any way specify how the
  substitute should work, i.e., it's an arbitrary (unnormalised)
  fstate expression.  For example, `nix-pull' registers substitutes
  that fetch Nix archives from the network (through `wget') and unpack
  them, but any other method is possible as well.  This is an
  improvement over the old Nix sharing scheme, which had a policy
  (fetching through `wget') built in.

  The sharing scheme doesn't work completely yet because successors
  from fstate rewriting have to be registered on the receiving side.
  Probably the whole successor stuff can be folded up into the
  substitute mechanism; this would be a nice simplification.
 2003-07-10 15:11:48 +00:00
Eelco Dolstra d072485d28 * Get `nix-push' working again. It now uses Nix/Fix to create Nix 
archives (using the package in corepkgs/nar).
* queryPathByHash -> expandHash, and it takes an argument specifying
  the target path (which may be empty).
* Install the core Fix packages in $prefix/share/fix.  TODO: bootstrap
  Nix and install Nix as a Fix package.
 2003-07-10 13:41:28 +00:00
Eelco Dolstra 5d4b90b689 * Actually go through the search directories when looking for files. 2003-07-10 09:21:40 +00:00
Eelco Dolstra 6011bd0da2 * Outline of the new scheme for derivate distribution. 2003-07-09 16:12:40 +00:00
Eelco Dolstra 2b95a9dc05 * When computing the set of paths referenced by an expression, also 
include the paths of the subterms.
 2003-07-09 15:02:03 +00:00
Eelco Dolstra 9a99dc736d * Canonicalise paths so that Fix produces identical Nix 
expressions for identical inputs.
 2003-07-08 20:26:22 +00:00
Eelco Dolstra cab3f4977a * A path canonicaliser that doesn't depend on the existence of paths 
(i.e., it doesn't use realpath(3), which is broken in any case).
  Therefore it doesn't resolve symlinks.
 2003-07-08 19:58:41 +00:00
Eelco Dolstra 333f4963de * The output of a Derive() node is not a referenced path. 2003-07-08 15:33:06 +00:00
Eelco Dolstra 40274c1f4f * A command to query the paths referenced by an fstate expression. 
* Use a temporary directory for build actions.
 2003-07-08 13:22:08 +00:00
Eelco Dolstra a279137327 * Get --dump' and --delete' to work again. 2003-07-08 10:00:46 +00:00
Eelco Dolstra 85a913a3e7 * Renamed id' -> name' to remove the implication of uniqueness. 2003-07-08 09:59:00 +00:00
Eelco Dolstra 0b38b43bab * deletePath() now removes the path from the hash2paths mapping. 2003-07-08 09:54:47 +00:00
Eelco Dolstra ab644ad10b * BaseName() primitive for the generation of more sensible names 
(especially in fetchurl.fix).
 2003-07-08 09:53:46 +00:00
Eelco Dolstra a5a90f501e * Get rid of the `netsources' database. 
* Rename the `refs' database to `hash2paths'.
 2003-07-08 08:35:06 +00:00
Eelco Dolstra be96c2189c * --realise' -> --install'. 2003-07-07 09:29:40 +00:00
Eelco Dolstra 5895c160c4 * Make dbRefs a mapping from Hash to [Path]. 2003-07-07 09:25:26 +00:00
Eelco Dolstra 609a224848 * Fixed `make check' as well. 2003-07-07 07:44:57 +00:00
Eelco Dolstra 224c585aba * Refactoring on the file names. 2003-07-07 07:43:58 +00:00
Eelco Dolstra 7952a8053c * A utility `nix-hash' to compute Nix path hashes. 2003-07-06 15:11:02 +00:00
Eelco Dolstra bfa5d77211 * Bug fix: properly check result of open(). 2003-07-06 15:08:39 +00:00
Eelco Dolstra 82e3d8fafe * Got Fix working again. 2003-07-06 14:20:47 +00:00
Eelco Dolstra f826e432aa * Refactoring: move initialisation and argument parsing into a shared 
file.
 2003-07-04 15:42:03 +00:00
Eelco Dolstra 01b34fe584 * Cleanup. 2003-07-04 15:29:58 +00:00
Eelco Dolstra 207ff2caf0 * Caching of expression successors. 2003-07-04 12:18:06 +00:00
Eelco Dolstra 40b5936691 * Realisation of Derive(...) expressions. 2003-06-27 14:56:12 +00:00
Eelco Dolstra 3da9687854 * Realisation of File(...) expressions. 2003-06-27 13:55:12 +00:00
Eelco Dolstra d4c3edfaba * Normalisation. 2003-06-27 09:55:31 +00:00
Eelco Dolstra 3ec5252582 * Improved syntax and semantics for Nix expressions. 2003-06-25 15:50:37 +00:00
Eelco Dolstra 2b07b0e7eb * Minor cleanups. 2003-06-25 14:58:56 +00:00
Eelco Dolstra 692b562342 * `nix --delete' command. 2003-06-23 14:40:49 +00:00
Eelco Dolstra c0cbaef4be * `nix --restore' command. 2003-06-23 14:08:34 +00:00
Eelco Dolstra 5f5cab0ac7 * A function to restore from a Nix archive. 
* addValue() can now import any dumpable FS object.
 2003-06-23 13:27:59 +00:00
Eelco Dolstra 85effedca3 * Flags to indicate how values are specified on the command line 
(--hash, --file, --name).
 2003-06-20 14:11:31 +00:00
Eelco Dolstra 5079ccb455 * Move most of Nix into a library (libnix.a). 
* Run `test' on `make check'.
 2003-06-20 10:53:04 +00:00
Eelco Dolstra 1849aa2a72 * Refactoring: move dump function into archive.cc. 2003-06-20 10:40:25 +00:00
Eelco Dolstra 38e12df631 * `nix --dump' command. 2003-06-18 14:34:43 +00:00
Eelco Dolstra aeaffec785 * Dump symlinks. 2003-06-18 14:34:03 +00:00
Eelco Dolstra 94cf1f86bb * Lambdas, applications, substitutions. 2003-06-18 12:36:12 +00:00
Eelco Dolstra fab7b128b9 * Automake sucks. 2003-06-18 08:07:28 +00:00
Eelco Dolstra 34fcf5fa0c * Started integrating the new evaluation model into Nix. 
* Cleaned up command-line syntax.
 2003-06-17 21:12:58 +00:00
Eelco Dolstra 7a96da3627 * Test for expression dereferencing. 2003-06-17 15:47:25 +00:00
Eelco Dolstra 6656993f83 * Derefencing of hashed expressions. 2003-06-17 15:45:43 +00:00
Eelco Dolstra a7ab242fb4 * Simplify the evaluator. 2003-06-17 13:37:44 +00:00
Eelco Dolstra c739e20585 * Argument processing. 2003-06-16 21:01:18 +00:00
Eelco Dolstra 727beb798a * Canonicalization: when hashing directories, sort the directory 
entries by name.
 2003-06-16 16:16:09 +00:00
Eelco Dolstra 2f04e7102e * Path hashing. 2003-06-16 15:59:23 +00:00
Eelco Dolstra a09e66da5a * Description of path hashing algorithm. 2003-06-16 14:19:32 +00:00
Eelco Dolstra 822794001c * Started implementing the new evaluation model. 
* Lots of refactorings.
* Unit tests.
 2003-06-16 13:33:38 +00:00
Eelco Dolstra b9f09b3268 * AST for Nix expressions. 2003-06-16 07:03:40 +00:00
Eelco Dolstra 21fe717ce2 * Refactoring: hash class. 2003-06-15 13:41:32 +00:00
Eelco Dolstra f66055fa1e * Set umask to 0022 on startup. 2003-05-30 20:53:36 +00:00
Eelco Dolstra 5908663f42 * Send log output to stderr. 2003-05-30 17:01:21 +00:00
Eelco Dolstra d1f5fd7216 * Log the output of builders to $prefix/var/log/nix. 2003-05-30 15:21:52 +00:00