Commit graph

1258 commits

Author SHA1 Message Date
Eelco Dolstra 813a7c65c9 * Sanity check. 2006-12-07 00:19:27 +00:00
Eelco Dolstra 6a8e60913a * Move killUser() to libutil so that the setuid helper can use it. 2006-12-07 00:16:07 +00:00
Eelco Dolstra 79875c5e42 * Change the ownership of the current directory to the build user. 2006-12-06 23:52:25 +00:00
Eelco Dolstra 62ab131412 * Verify that the desired target user is in the build users group (as
specified in the setuid config file).
2006-12-06 23:15:26 +00:00
Eelco Dolstra f07ac41656 * Check that the caller is allowed to call the setuid helper. The
allowed uid is specified in a configuration file in
  /etc/nix-setuid.conf.
2006-12-06 22:45:41 +00:00
Eelco Dolstra ef281b93c2 * Fix the safety check. 2006-12-06 20:18:29 +00:00
Eelco Dolstra 6e5ec1029a * Get rid of `build-users'. We'll just take all the members of
`build-users-group'.  This makes configuration easier: you can just
  add users in /etc/group.
2006-12-06 20:00:15 +00:00
Eelco Dolstra 751f6d2157 * nix-setuid-helper: allow running programs under a different uid. 2006-12-06 17:29:10 +00:00
Eelco Dolstra 9f0efa6611 * Start of the setuid helper (the program that performs the operations
that have to be done as root: running builders under different uids,
  changing ownership of build results, and deleting paths in the store
  with the wrong ownership).
2006-12-06 01:24:02 +00:00
Eelco Dolstra 2b558843a2 * Be less chatty. 2006-12-05 19:01:19 +00:00
Eelco Dolstra 44cad9630f * Urgh. Do setgid() before setuid(), because the semantics of setgid()
changes completely depending on whether you're root...
2006-12-05 18:28:15 +00:00
Eelco Dolstra 6f0d050324 * Tricky: child processes should not send data to the client since
that might mess up the protocol.  And besides, the socket file
  descriptor is probably closed.
2006-12-05 18:21:16 +00:00
Eelco Dolstra 4c1c37d0b6 * FreeBSD returns ESRCH when there are no processes to kill. 2006-12-05 18:07:46 +00:00
Eelco Dolstra 8d1854c3f1 * Oops! In daemon mode, we can't run as root either if build-users is empty. 2006-12-05 17:44:19 +00:00
Eelco Dolstra 99655245ae * Use an explicit handler for SIGCHLD, since SIG_IGN doesn't do the
right thing on FreeBSD 4 (it leaves zombies).
2006-12-05 17:21:42 +00:00
Eelco Dolstra 62b0497c0f * Better message. 2006-12-05 16:17:01 +00:00
Eelco Dolstra c808e6252f * Ugly hack to handle spurious SIGPOLLs. 2006-12-05 15:36:31 +00:00
Eelco Dolstra fd4a9db91f * Some renaming. 2006-12-05 14:15:51 +00:00
Eelco Dolstra a9c4f66cfb * Allow unprivileged users to run the garbage collector and to do
`nix-store --delete'.  But unprivileged users are not allowed to
  ignore liveness.
* `nix-store --delete --ignore-liveness': ignore the runtime roots as
  well.
2006-12-05 02:18:46 +00:00
Eelco Dolstra 29cf434a35 * The determination of the root set should be made by the privileged
process, so forward the operation.
* Spam the user about GC misconfigurations (NIX-71).
* findRoots: skip all roots that are unreadable - the warnings with
  which we spam the user should be enough.
2006-12-05 01:31:45 +00:00
Eelco Dolstra 8623256f48 * findRoots: return a map from the symlink (outside of the store) to
the store path (inside the store).
2006-12-05 00:48:36 +00:00
Eelco Dolstra d27a73b1a9 * In addPermRoot, check that the root that we just registered can be
found by the garbage collector.  This addresses NIX-71 and is a
  particular concern in multi-user stores.
2006-12-05 00:34:42 +00:00
Eelco Dolstra 74033a844f * Add indirect root registration to the protocol so that unprivileged
processes can register indirect roots.  Of course, there is still
  the problem that the garbage collector can only read the targets of
  the indirect roots when it's running as root...
2006-12-04 23:29:16 +00:00
Eelco Dolstra 0d40f6d7bb * Not every OS knows about SIGPOLL. 2006-12-04 22:58:44 +00:00
Eelco Dolstra 7751160e9f * Don't redirect stderr. 2006-12-04 19:10:23 +00:00
Eelco Dolstra 40c3529909 * Handle exceptions and stderr for all protocol functions.
* SIGIO -> SIGPOLL (POSIX calls it that).
* Use sigaction instead of signal to register the SIGPOLL handler.
  Sigaction is better defined, and a handler registered with signal
  appears not to interrupt fcntl(..., F_SETLKW, ...), which is bad.
2006-12-04 17:55:14 +00:00
Eelco Dolstra 0130ef88ea * Daemon mode (`nix-worker --daemon'). Clients connect to the server
via the Unix domain socket in /nix/var/nix/daemon.socket.  The
  server forks a worker process per connection.
* readString(): use the heap, not the stack.
* Some protocol fixes.
2006-12-04 17:17:13 +00:00
Eelco Dolstra 4740baf3a6 * When NIX_REMOTE=daemon, connect to /nix/var/nix/daemon.socket
instead of forking a worker.
2006-12-04 14:21:39 +00:00
Eelco Dolstra f5f0cf423f * Refactoring. 2006-12-04 13:28:14 +00:00
Eelco Dolstra 052b6fb149 * Pass the verbosity level to the worker. 2006-12-04 13:15:29 +00:00
Eelco Dolstra 1e16d20655 * Install the worker in bindir, not libexecdir.
* Allow the worker path to be overriden through the NIX_WORKER
  environment variable.
2006-12-04 13:09:16 +00:00
Eelco Dolstra 9322b399f3 * Doh. 2006-12-03 20:41:22 +00:00
Eelco Dolstra f4279bcde0 * Don't run setuid root when build-users is empty.
* Send startup errors to the client.
2006-12-03 16:25:19 +00:00
Eelco Dolstra 35247c4c9f * Removed `build-allow-root'.
* Added `build-users-group', the group under which builds are to be
  performed.
* Check that /nix/store has 1775 permission and is owner by the
  build-users-group.
2006-12-03 15:32:38 +00:00
Eelco Dolstra 84d6459bd5 * Use setreuid if setresuid is not available. 2006-12-03 14:32:22 +00:00
Eelco Dolstra a9f9241054 * Handle a subtle race condition: the client closing the socket
between the last worker read/write and the enabling of the signal
  handler.
2006-12-03 03:16:27 +00:00
Eelco Dolstra 3ed9e4ad9b * Some hardcore magic to handle asynchronous client disconnects.
The problem is that when we kill the client while the worker is
  building, and the builder is not writing anything to stderr, then
  the worker never notice that the socket is closed on the other side,
  so it just continues indefinitely.  The solution is to catch SIGIO,
  which is sent when the far side of the socket closes, and simulate
  an normal interruption.  Of course, SIGIO is also sent every time
  the client sends data over the socket, so we only enable the signal
  handler when we're not expecting any data...
2006-12-03 03:03:36 +00:00
Eelco Dolstra 4251f94b32 * Use a Unix domain socket instead of pipes. 2006-12-03 02:36:44 +00:00
Eelco Dolstra 8c76df93e6 * Better error message if the worker doesn't start. 2006-12-03 02:22:04 +00:00
Eelco Dolstra 363f40022f * Pid::kill() should be interruptable. 2006-12-03 02:12:26 +00:00
Eelco Dolstra 7951c3c546 * Some hackery to propagate the worker's stderr and exceptions to the
client.
2006-12-03 02:08:13 +00:00
Eelco Dolstra 714fa24cfb * Run the worker in a separate session to prevent terminal signals
from interfering.
2006-12-03 00:52:27 +00:00
Eelco Dolstra e25fad691a * Move addTempRoot() to the store API, and add another function
syncWithGC() to allow clients to register GC roots without needing
  write access to the global roots directory or the GC lock.
2006-12-02 16:41:36 +00:00
Eelco Dolstra 30bf547f4f * Doh. 2006-12-02 15:46:17 +00:00
Eelco Dolstra 536595b072 * Remove most of the old setuid code.
* Much simpler setuid code for the worker in slave mode.
2006-12-02 15:45:51 +00:00
Eelco Dolstra 9c9cdb06d0 * Remove SwitchToOriginalUser, we're not going to need it anymore. 2006-12-02 14:34:14 +00:00
Eelco Dolstra 8ba5d32769 * Remove queryPathHash().
* Help for nix-worker.
2006-12-02 14:27:24 +00:00
Eelco Dolstra fcd9900d74 * Replace read-only calls to addTextToStore. 2006-12-01 21:00:39 +00:00
Eelco Dolstra a824d58b56 * Merge addToStore and addToStoreFixed.
* addToStore now adds unconditionally, it doesn't use readOnlyMode.
  Read-only operation is up to the caller (who can call
  computeStorePathForPath).
2006-12-01 20:51:18 +00:00
Eelco Dolstra ceb982a1be * Right name. 2006-12-01 18:02:05 +00:00
Eelco Dolstra b0d8e05be1 * More operations.
* addToStore() and friends: don't do a round-trip to the worker if
  we're only interested in the path (i.e., in read-only mode).
2006-12-01 18:00:01 +00:00
Eelco Dolstra 0565b5f2b3 * More remote operations.
* Added new operation hasSubstitutes(), which is more efficient than
  querySubstitutes().size() > 0.
2006-11-30 22:43:55 +00:00
Eelco Dolstra aac547a8b3 * Doh. 2006-11-30 21:32:46 +00:00
Eelco Dolstra 0263279071 * More operations. 2006-11-30 20:45:20 +00:00
Eelco Dolstra a711689368 * First remote operation: isValidPath(). 2006-11-30 20:13:59 +00:00
Eelco Dolstra 765bdfe542 * When NIX_REMOTE is set to "slave", fork off nix-worker in slave
mode.  Presumably nix-worker would be setuid to the Nix store user.
  The worker performs all operations on the Nix store and database, so
  the caller can be completely unprivileged.

  This is already much more secure than the old setuid scheme, since
  the worker doesn't need to do Nix expression evaluation and so on.
  Most importantly, this means that it doesn't need to access any user
  files, with all resulting security risks; it only performs pure
  store operations.

  Once this works, it is easy to move to a daemon model that forks off
  a worker for connections established through a Unix domain socket.
  That would be even more secure.
2006-11-30 19:54:43 +00:00
Eelco Dolstra 40b3f64b55 * Skeleton of the privileged worker program.
* Some refactoring: put the NAR archive integer/string serialisation
  code in a separate file so it can be reused by the worker protocol
  implementation.
2006-11-30 19:19:59 +00:00
Eelco Dolstra 9adc074dc3 * Oops. 2006-11-30 18:35:50 +00:00
Eelco Dolstra 9cf1948993 * Skeleton of remote store implementation. 2006-11-30 18:35:36 +00:00
Eelco Dolstra 6ecb840fd1 * Put building in the store API. 2006-11-30 18:02:04 +00:00
Eelco Dolstra e2ef5e07fd * Refactoring. There is now an abstract interface class StoreAPI
containing functions that operate on the Nix store.  One
  implementation is LocalStore, which operates on the Nix store
  directly.  The next step, to enable secure multi-user Nix, is to
  create a different implementation RemoteStore that talks to a
  privileged daemon process that uses LocalStore to perform the actual
  operations.
2006-11-30 17:43:04 +00:00
Eelco Dolstra 80b742dd52 * Don't spam. 2006-11-29 22:07:49 +00:00
Roy van den Broek 92417600a1 * Example script to set permissions for setuid operation. 2006-11-29 21:58:09 +00:00
Eelco Dolstra 71e867c5f5 * Remove --enable-setuid, --with-nix-user and --with-nix-group.
Rather, setuid support is now always compiled in (at least on
  platforms that have the setresuid system call, e.g., Linux and
  FreeBSD), but it must enabled by chowning/chmodding the Nix
  binaries.
2006-11-29 21:06:58 +00:00
Eelco Dolstra c6a97e3b74 * Doh! Path sizes need to be computed recursively of course.
(NIX-70)
2006-11-24 20:24:14 +00:00
Eelco Dolstra a76efaeb3f * Dead files. 2006-11-24 20:07:30 +00:00
Eelco Dolstra 0541ddc7e3 * Turn off synchronisation between C and C++ I/O functions. This
gives a huge speedup in operations that read or write from standard
  input/output.  (So libstdc++'s I/O isn't that bad, you just have to
  call std::ios::sync_with_stdio(false).)  For instance, `nix-store
  --register-substitutes' went from 1.4 seconds to 0.1 seconds on a
  certain input.  Another victory for Valgrind.
2006-11-18 18:56:30 +00:00
Eelco Dolstra f459a5bb3a * Remove the undocumented `noscan' feature. It's no longer necessary
now that reference scanning is sufficiently streamy.
2006-11-13 18:19:05 +00:00
Eelco Dolstra e2a70b7ec0 * Magic attribute `exportReferencesGraph' that allows the references
graph to be passed to a builder.  This attribute should be a list of
  pairs [name1 path1 name2 path2 ...].  The references graph of each
  `pathN' will be stored in a text file `nameN' in the temporary build
  directory.  The text files have the format used by `nix-store
  --register-validity'.  However, the deriver fields are left empty.

  `exportReferencesGraph' is useful for builders that want to do
  something with the closure of a store path.  Examples: the builders
  that make initrds and ISO images for NixOS.

  `exportReferencesGraph' is entirely pure.  It's necessary because
  otherwise the only way for a builder to get this information would
  be to call `nix-store' directly, which is not allowed (though
  unfortunately possible).
2006-11-13 18:18:13 +00:00
Eelco Dolstra e40d4a5604 * Option --reregister' in nix-store --register-validity'. We need
this in the NixOS installer (or in the buildfarm) to ensure that the
  cryptographic hash of the path contents still matches the actual
  contents.
2006-11-13 16:48:27 +00:00
Eelco Dolstra 7e85a2af5f * Fix importing of derivation outputs. 2006-11-03 16:17:39 +00:00
Eelco Dolstra 8478cd260f * readFile: don't overflow the stack on large files. 2006-10-30 11:56:09 +00:00
Eelco Dolstra ae6fb27f18 * `nix-store --read-log / -l PATH' shows the build log of PATH, if
available.  For instance,

    $ nix-store -l $(which svn) | less

  lets you read the build log of the Subversion instance in your
  profile.

* `nix-store -qb': if applied to a non-derivation, take the deriver.
2006-10-28 16:33:54 +00:00
Eelco Dolstra dd300fb48d * Some better error messages. 2006-10-23 16:45:19 +00:00
Eelco Dolstra 17f4883bfe * Better message. 2006-10-19 17:43:58 +00:00
Eelco Dolstra 9bd93f7606 * toFile: maintain the references. 2006-10-19 17:39:02 +00:00
Eelco Dolstra 6a67556f71 * Special derivation attribute `allowedReferences' that causes Nix to
check that the references of the output of a derivation are in the
  specified set.  For instance,

    allowedReferences = [];

  specifies that the output cannot have any references.  (This is
  useful, for instance, for the generation of bootstrap binaries for
  stdenv-linux, which must not have any references for purity).  It
  could also be used to guard against undesired runtime dependencies,
  e.g.,

    {gcc, dynlib}: derivation {
      ...
      allowedReferences = [dynlib];
    }

  says that the output can refer to the path of `dynlib' but not
  `gcc'.  A `forbiddedReferences' attribute would be more useful for
  this, though.
2006-10-19 16:09:24 +00:00
Eelco Dolstra daa8f85fcd * Backwards compatibility hack for user environments made by Nix <= 0.10. 2006-10-17 14:13:15 +00:00
Eelco Dolstra 24737f279e * Backwards compatibility with old user environment manifests. 2006-10-17 14:01:45 +00:00
Eelco Dolstra 4bd5cdb90b * Print out the offending path. 2006-10-17 14:01:28 +00:00
Eelco Dolstra 58ff6939f4 * An awful backwards compatibility hack. 2006-10-17 12:58:42 +00:00
Eelco Dolstra 3059df0f1e * baseNameOf: paths don't have to be absolute. 2006-10-17 12:34:13 +00:00
Eelco Dolstra 822dba2210 * Maintain the references for the user environment properly. 2006-10-17 12:15:15 +00:00
Eelco Dolstra be1961c9f8 * toPath: should be the identity on paths. 2006-10-17 11:07:11 +00:00
Eelco Dolstra cba913c521 * dirOf: return a path if the argument is a path. 2006-10-17 11:05:34 +00:00
Eelco Dolstra cf705eaf78 * toString: don't copy paths. So toString can be used to pass
non-store paths to a builder.
2006-10-17 10:58:12 +00:00
Eelco Dolstra 7de5fe2fc2 * Do the path check on the normal form. 2006-10-17 10:57:25 +00:00
Eelco Dolstra 46b631b6c4 * Don't generate an empty drvPath attribute in the manifest. 2006-10-17 10:15:42 +00:00
Eelco Dolstra d7efd76394 * Big cleanup of the semantics of paths, strings, contexts, string
concatenation and string coercion.  This was a big mess (see
  e.g. NIX-67).  Contexts are now folded into strings, so that they
  don't cause evaluation errors when they're not expected.  The
  semantics of paths has been clarified (see nixexpr-ast.def).
  toString() and coerceToString() have been merged.

  Semantic change: paths are now copied to the store when they're in a
  concatenation (and in most other situations - that's the
  formalisation of the meaning of a path).  So

    "foo " + ./bla

  evaluates to "foo /nix/store/hash...-bla", not "foo
  /path/to/current-dir/bla".  This prevents accidental impurities, and
  is more consistent with the treatment of derivation outputs, e.g.,
  `"foo " + bla' where `bla' is a derivation.  (Here `bla' would be
  replaced by the output path of `bla'.)
2006-10-16 15:55:34 +00:00
Eelco Dolstra 37c8a664f3 * A helpful message. 2006-10-13 11:49:55 +00:00
Eelco Dolstra e4af398681 * Don't crash when upgrading the Berkeley DB environment. 2006-10-13 11:15:53 +00:00
Eelco Dolstra 7d4567f2cc * Removed URIs from the evaluator (NIX-66). They are now just another
kind of notation for strings.
2006-10-11 21:59:33 +00:00
Eelco Dolstra 0c4c5c2020 * Quick hack to fix NIX-67: evaluation result differing if the Nix
expression resides in the store.
2006-10-10 21:23:35 +00:00
Eelco Dolstra bd0c40e1e9 * import': unwrap the context. Necessary to make import (x + y)'
work, where x is a store path.
2006-10-10 15:07:23 +00:00
Eelco Dolstra 9e08f5efe1 * Documented nix-store --dump / --restore. 2006-10-05 22:57:07 +00:00
Eelco Dolstra 5fd44654db * toXML: propagate the context to allow derivations to be used in the
argument.
2006-10-03 15:38:59 +00:00
Eelco Dolstra d20c3011a0 * toFile: added an additional argument to specify the store path
suffix, e.g., `builtins.toFile "builder.sh" "..."'.
* toFile: handle references to other files correctly.
2006-10-03 14:55:54 +00:00
Eelco Dolstra ac19b333b3 * Finally, a real "let" syntax: `let x = ...; ... z = ...; in ...'. 2006-10-02 15:52:44 +00:00
Eelco Dolstra 7581cfdee4 * Hack for Bison 2.3 compatability. 2006-10-02 14:43:15 +00:00
Eelco Dolstra 4ad6fb7ea3 * Fix setuid builds. 2006-09-27 21:04:07 +00:00
Eelco Dolstra 3632019b73 * Quick hack to let nix-install-package set the package name properly
(e.g., "java-front-0.9pre15899" instead of "java-front";
  particularly important when doing upgrades later on).
2006-09-25 14:00:59 +00:00
Eelco Dolstra e347033f71 * The result of a concatenation with a derivation on the left-hand
side should be a path, I guess.
* Handle paths that are in the store but not direct children of the
  store directory.
* Ugh, hack to prevent double context wrapping.
2006-09-24 21:39:57 +00:00
Eelco Dolstra 0e705391db * Primop `toPath' to convert a string to a path.
* Primop `pathExists' to check for path existence.
2006-09-24 18:23:32 +00:00
Eelco Dolstra e47e0c2dbe * Builtin function `getEnv' for getting environment variables. 2006-09-24 17:48:41 +00:00
Eelco Dolstra df8873e14a * lessThan primitive for integer comparison. 2006-09-24 15:21:48 +00:00
Eelco Dolstra 2ab4bc44c7 * Builtin function `add' to add integers.
* Put common test functions in tests/lang/lib.nix.
2006-09-22 15:29:21 +00:00
Eelco Dolstra d315210612 * Added a builtin function `isList' to test whether a value is a list.
With this primitive, a list-flattening function can be implemented
  (NIX-55, example is in tests/lang/eval-okay-flatten.nix).
2006-09-22 14:55:19 +00:00
Eelco Dolstra c02a44183f * Builtin functions head' and tail' to return the head and tail of
list.  Useful for lots of things, such as implementing a fold
  function (see NIX-30, example is in tests/lang/eval-okay-list.nix).
2006-09-22 14:46:36 +00:00
Eelco Dolstra 8a1ab709a4 * New builtin functions builtins.{hasAttr, getAttr} to check for
attribute existence and to return an attribute from an attribute
  set, respectively.  Example: `hasAttr "foo" {foo = 1;}'.  They
  differ from the `?' and `.' operators in that the attribute name is
  an arbitrary expression.  (NIX-61)
2006-09-22 14:31:55 +00:00
Eelco Dolstra 666babbbfa * Use a bounded amount of memory in scanForReferences() by not reading
regular files into memory all at once.
2006-09-22 13:10:30 +00:00
Eelco Dolstra d22d7565f3 * Don't allocate the buffer twice. 2006-09-22 11:28:23 +00:00
Eelco Dolstra b43aeadbc9 * Don't allocate more than SIZE_MAX bytes. 2006-09-22 11:13:35 +00:00
Eelco Dolstra 25df501704 * GC options in nix-store --help (NIX-15). 2006-09-21 19:06:34 +00:00
Eelco Dolstra 4e91d8621f * Fix comment. 2006-09-21 18:52:05 +00:00
Eelco Dolstra 1bdc152931 * Shut up a warning. 2006-09-20 16:36:29 +00:00
Eelco Dolstra 0623359fbc * Print a better error message for wrong hashes (NIX-49). 2006-09-20 16:15:32 +00:00
Eelco Dolstra e0afaf1857 * Wow, that bug has been there since r764. 2006-09-14 22:48:59 +00:00
Eelco Dolstra 86cbd93ec1 * nix-env --switch-generation / --list-generations /
--delete-generations: lock the profile to prevent (extremely
  unlikely) race conditions.
2006-09-14 22:33:53 +00:00
Eelco Dolstra 5c38c863bd * Fix a huge gaping hole in nix-env w.r.t. the garbage collector.
Nix-env failed to call addPermRoot(), which is necessary to safely
  add a new root.  So if nix-env started after and finished before the
  garbage collector, the user environment (plus all other new stuff)
  it built might be garbage collected, leading to a dangling symlink
  chain in ~/.nix-profile...

* Be more explicit if we block on the GC lock ("waiting for the big
  garbage collector lock...").

* Don't loop trying to create a new generation.  It's not necessary
  anymore since profiles are locked nowadays.
2006-09-14 22:30:33 +00:00
Eelco Dolstra 01d169f817 * Support `++'.
* More follow restrictions on layout.
2006-09-11 13:05:15 +00:00
Eelco Dolstra feb63da431 * Remove debug message. 2006-09-08 09:31:07 +00:00
Eelco Dolstra a89a201598 * Missing #include. 2006-09-05 10:32:47 +00:00
Eelco Dolstra fc195519b5 * Sone missing #includes. 2006-09-05 08:54:48 +00:00
Eelco Dolstra bafc1690fc * Move setuid stuff to libutil.
* Install libexpr header files.
2006-09-04 22:55:28 +00:00
Eelco Dolstra e5a6c09b12 * Install header files in /nix/include/nix. 2006-09-04 22:41:36 +00:00
Eelco Dolstra 4be5443882 * Remove unnecessary inclusions of aterm2.h. 2006-09-04 22:08:40 +00:00
Eelco Dolstra 2382a729e0 * Don't need extern "C". 2006-09-04 21:50:39 +00:00
Eelco Dolstra e3ce954582 * Compile the lexer as C++ code. Remove all the redundant C/C++
marshalling code.
2006-09-04 21:36:15 +00:00
Eelco Dolstra 75068e7d75 * Use a proper namespace.
* Optimise header file usage a bit.
* Compile the parser as C++.
2006-09-04 21:06:23 +00:00
Eelco Dolstra aab8812732 * Store the Nix libraries in ${libdir}/nix instead of ${libdir}. 2006-09-04 15:12:24 +00:00
Eelco Dolstra 7974aae81c * New primop: builtins.toFile, which writes a string into the store
and returns its path.  This can be used to (for instance) write
  builders inside a Nix expression, e.g.,

  stdenv.mkDerivation {
    builder = "
      source $stdenv/setup
      ...
    ";
    ...
  }
2006-09-01 12:07:31 +00:00
Eelco Dolstra de90fdf908 * Allow "$" in strings as long as they are not followed by "{". (Too
bad flex doesn't have lexical restrictions, the current solution
  isn't quite right...)
2006-09-01 12:04:06 +00:00
Eelco Dolstra c25f688e23 * Doh! Doh! Doh! 2006-08-31 15:38:43 +00:00
Eelco Dolstra 354d58b3d7 * Better error checking. 2006-08-31 11:40:39 +00:00
Eelco Dolstra f93f7b75be * Okay, that's a bit harder than expected. 2006-08-30 13:10:04 +00:00
Eelco Dolstra 3151bdea55 * Uninitialised variable. 2006-08-30 12:00:27 +00:00
Eelco Dolstra 547b119f25 * Support singleton values and nested lists again in `args', but print
a warning.
2006-08-29 15:40:49 +00:00
Eelco Dolstra 2132d9ddeb * Fix the ~ operator. 2006-08-29 15:29:38 +00:00
Eelco Dolstra 1ec9f55741 * In toString, deal with nested lists properly (i.e., flatten them). 2006-08-28 21:47:42 +00:00
Eelco Dolstra 1fca76870b * Removed processBinding, instead we now apply toString to all
derivation attributes to flatten them into strings.  This is
  possible since string can nowadays be wrapped in contexts that
  describe the derivations/sources referenced by the evaluation of the
  string.
2006-08-28 13:31:06 +00:00
Eelco Dolstra 8a6080eb14 * Refactoring. 2006-08-26 16:48:01 +00:00
Eelco Dolstra 4b66cebe7b * Remove those storePath attribute sets, we don't need 'em. 2006-08-25 17:09:55 +00:00
Eelco Dolstra 3e8dccf6ab * Escape newlines in XML attributes to prevent them from being
normalised away.
2006-08-24 15:02:39 +00:00
Eelco Dolstra 215ec2ddc6 * New primop __toXML (or builtins.toXML) to convert an expression to
an XML representation stored in a string.  This should be useful to
  pass structured information to builders.
2006-08-24 14:34:29 +00:00
Eelco Dolstra f793caf936 * Refactoring. 2006-08-24 14:16:55 +00:00
Eelco Dolstra da25d80152 * Strict evaluation and XML printing of lists. 2006-08-24 14:03:39 +00:00
Eelco Dolstra 943ab38a0d * Refactoring: move strictEval to libexpr. 2006-08-24 13:39:22 +00:00
Eelco Dolstra f41297fdce * Allow --arg in nix-env as well, example:
$ nix-env -qa --system-filter \* --arg system '"powerpc-darwin"'

  to override the system from the default value (__currentSystem in
  all-packages.nix).
2006-08-23 16:33:21 +00:00
Eelco Dolstra 9638f3f393 * Pass the autoArgs to findAlongAttrPath so that "nix-instantiate
foo.nix -A attr --arg name value" will work if (name, value) is
  needed in the evaluation leading up to "attr".
2006-08-23 16:20:14 +00:00
Eelco Dolstra b19cebc513 * Quotes. 2006-08-23 15:46:27 +00:00
Eelco Dolstra 38f18aa6d4 * New primop: abort "error message". 2006-08-23 15:46:00 +00:00
Eelco Dolstra 4a053bfdfd * A new primop `builtins', which returns an attribute set containing
all the primops.  This allows Nix expressions to test for new
  primops and take appropriate action if they're not available.  For
  instance, rather than calling a primop `foo' directly, they could
  say `if builtins ? foo then builtins.foo ... else ...'.
2006-08-23 14:39:11 +00:00
Eelco Dolstra 24e234a2fa * Print attributes in sorted order, rather than the arbitrary order
produced by ATermMap.  Necessary for testing.
* `--strict' should also work on stdin.
2006-08-17 08:53:08 +00:00
Eelco Dolstra 22ba63df16 * More XML output. `--strict' to strictly evaluate attribute sets and
so on.
* Removed `--print-args', it's subsumed by `--eval-only --xml'.
2006-08-16 21:59:53 +00:00
Eelco Dolstra 18e4ac0fc6 * `nix-instantiate --{eval|parse}-only --xml': print an XML
representation instead of an ATerm.
* Indent XML output.
2006-08-16 10:32:30 +00:00
Eelco Dolstra 2670642733 * Handle carriage returns. Fixes NIX-53. 2006-08-16 10:28:44 +00:00
Martin Bravenboer 3e5b68068b On cygwin, disable the check that the output is not group or world
writable. File permissions on Cygwin are rather complex, and in this
case this check introduced a problem with build jobs invoke from
outside of Cygwin (MSYS). It seemed almost impossible to fix the
permissions of the directory, so for now this safety check is disabled
on Cygwin.
2006-08-15 21:37:48 +00:00
Eelco Dolstra 7455fd8835 * Put the value in an attribute. 2006-08-14 14:24:18 +00:00
Eelco Dolstra 4250b641d8 * `nix-store --gc --print-dead': print the total size of the store
objects that would be freed.
2006-08-11 20:26:49 +00:00
Eelco Dolstra 92f7dfa5b7 * Don't assume that paths returned by the runtime root finder are
valid.
2006-08-11 20:15:20 +00:00
Eelco Dolstra d19b6521fc * New configuration setting `build-max-jobs' which sets the default
for the `-j' flag (i.e., the maximum number of jobs to execute in
  parallel).  Useful on multi-processor machines.
2006-08-10 20:19:13 +00:00
Eelco Dolstra f1aa71a92f * Fix the help message wrt --attr. 2006-08-09 15:12:34 +00:00
Eelco Dolstra a18d02e0b0 * Print a warning that the subpath operator (~) is deprecated. 2006-08-09 15:08:47 +00:00
Eelco Dolstra a0607be7f4 * Workaround for a bug (?) in GCC 2.95. 2006-08-07 19:48:38 +00:00
Eelco Dolstra 1854f84e83 * Fix a few warnings. 2006-08-04 17:07:13 +00:00
Eelco Dolstra dcff8cdb76 * Weird issue on Cygwin with the include file order. 2006-08-04 16:01:26 +00:00
Eelco Dolstra 339e6f0e1d * `nix-env -q --xml': show query result in XML format for easier
automated processing.
2006-08-03 15:52:09 +00:00
Eelco Dolstra 0e267e2625 * `nix-instantiate --print-args': produce XML output so that the
result can be used more easily by scripts.
2006-08-03 14:49:57 +00:00
Eelco Dolstra 4750f6c5ed * Simple class for writing XML files. 2006-08-03 13:21:21 +00:00
Eelco Dolstra 6ac237e242 * Show some progress. 2006-08-01 09:43:41 +00:00
Eelco Dolstra 4661282fde * `nix-instantiate ... --arg NAME VALUE': allow arguments to be passed
to functions from the command line.
* nix-build: started removing backticks.
2006-07-28 16:03:28 +00:00
Eelco Dolstra c11839d7b2 * `nix-instantiate --print-args': print out the valid values for
functions arguments that have a domain.
2006-07-28 14:01:29 +00:00
Eelco Dolstra ca2238cf81 * Refactoring: get the selection path stuff out of getDerivations()
and put it into a separate function findAlongAttrPath().
2006-07-26 15:05:15 +00:00
Eelco Dolstra 2317d8f671 * `nix-instantiate --print-args' prints out the arguments of a
top-level function.
2006-07-25 21:21:50 +00:00
Eelco Dolstra 0e6dc72a7a * Applied rbroek's patch from the branch at
https://svn.cs.uu.nl:12443/repos/trace/buildfarm-control/trunk/ext/nix/,
  with some modifications.  This allows `nix-env -qa' to show the
  attribute path that can be used to unambiguously install a package
  using `nix-env -i -A'.  Example:

    $ nix-env -f top-level/all-packages.nix -qaA subversion xorg-server
    subversionWithJava  subversion-1.2.3
    subversion          subversion-1.3.2
    subversion14        subversion-1.4.0pre-rc1
    xorg.xorgserver     xorg-server-1.1.0
2006-07-25 16:40:38 +00:00
Eelco Dolstra 5744dd5480 * Support the --attr / -A flag in nix-env as well. So now we can do,
e.g.,

  $ nix-env -i -A subversion xorg.xorgserver

  The main advantage over using symbolic names is that using attribute
  names is unambiguous and much, much faster.
2006-07-25 11:53:22 +00:00
Eelco Dolstra 7a3a5d1608 * When there is a domain check, we have to evaluate the argument.
Can't be lazy!
2006-07-24 16:49:28 +00:00
Eelco Dolstra f4c5531d92 * New language feature: domain checks, which check whether a function
argument has a valid value, i.e., is in a certain domain.  E.g.,

    { foo : [true false]
    , bar : ["a" "b" "c"]
    }: ...

  This previously could be done using assertions, but domain checks
  will allow the buildfarm to automatically extract the configuration
  space from functions.
2006-07-24 16:35:34 +00:00
Eelco Dolstra 57751fdb55 * Refactoring to support domain checks. 2006-07-24 15:16:03 +00:00
Eelco Dolstra a4273156c4 * Use $(libexecdir) to find find-runtime-roots.pl. 2006-07-20 13:21:37 +00:00
Eelco Dolstra ee2cf45d76 * Use debug(). 2006-07-20 12:19:55 +00:00
Eelco Dolstra c15f544356 * Call find-runtime-roots.pl from the garbage collector to prevent
running applications etc. from being garbage collected.
2006-07-20 12:17:25 +00:00
Eelco Dolstra 4f3725b167 * Better error messages (especially wrt types). 2006-07-19 15:36:15 +00:00
Eelco Dolstra e10b830251 * Doh! Of couse we cannot memoize across scopes. 2006-07-11 10:29:52 +00:00
Eelco Dolstra d51aede4af * Allow the canonical system name to be specified at runtime in the
Nix config file.
2006-07-06 15:30:37 +00:00
Eelco Dolstra a945fb7905 * `nix-env --upgrade --eq': only upgrade if the old version is equal
to the new version.  This is actually useful.
2006-06-27 12:17:25 +00:00
Eelco Dolstra dbf6d7e783 * Concurrent GC on Cygwin. 2006-06-20 17:48:10 +00:00
Eelco Dolstra cc51f9c539 * Oops. 2006-06-19 16:35:35 +00:00
Eelco Dolstra 5bb3444032 * _exit() doesn't seem to work right on Cygwin. 2006-06-19 16:24:15 +00:00
Eelco Dolstra b35735d8b2 * On Windows we cannot delete open (lock) files, so we delete lock
files after we've closed them.  Since this only succeeds if the lock
  is no longer opened by any process, the token trick used on Unix is
  not necessary.
2006-06-19 14:43:13 +00:00
Eelco Dolstra 0e783e5579 * Write messages to stderr in a slightly more atomic way. Useful when
there are several parallel processes.
2006-06-19 14:37:35 +00:00
Eelco Dolstra c937b73622 * Show when we're blocked waiting for a lock. 2006-06-16 10:13:03 +00:00
Eelco Dolstra 588cb0eade * In `nix-env -i|-u|-e', lock the profile to prevent races between
concurrent nix-env operations on the same profile.  Fixes NIX-7.
2006-06-15 11:56:49 +00:00
Eelco Dolstra b454977909 * Fix for a problem with BSD's group ownership semantics when the user
is not in the "wheel" group.
2006-06-14 11:53:55 +00:00
Eelco Dolstra 23960e92df * Minor cleanup. 2006-06-01 18:13:33 +00:00
Eelco Dolstra 50fe85f016 * For fixed-output derivations, pass the environment variables listed
in the attribute variable `impureEnvVars' from the caller to the
  builder.
2006-05-31 09:51:45 +00:00
Eelco Dolstra 1390ce4142 * Not all platforms have sys/select.h. 2006-05-30 11:37:21 +00:00
Eelco Dolstra b1c63dc362 * Don't use badTerm, it gives awful error messages. 2006-05-30 11:31:33 +00:00
Eelco Dolstra 58b4198ed8 * Disable the concurrent garbage collector on Cygwin for now. 2006-05-29 20:46:51 +00:00
Eelco Dolstra d764409d97 * Some Cygwin fixes. 2006-05-24 13:23:20 +00:00
Eelco Dolstra b5988004d6 * Support for srcdir != builddir (NIX-41). 2006-05-12 11:47:45 +00:00
Eelco Dolstra 9d72bf8835 * 64-bit compatibility fixes (for problems revealed by building on an Athlon
64 running 64-bit SUSE).  A patched ATerm library is required to run Nix
  succesfully.
2006-05-11 02:19:43 +00:00
Eelco Dolstra c54287eafe * GCC 2.95 compatibility. 2006-05-08 15:15:13 +00:00
Eelco Dolstra 5cabd47394 * Allow function argument default values to refer to other arguments
of the function.  Implements NIX-45.
2006-05-08 12:52:47 +00:00
Eelco Dolstra 310e605995 * Show evaluation stats when NIX_SHOW_STATS=1. 2006-05-08 10:00:37 +00:00
Eelco Dolstra 0832956089 * Use the new ATermMap. 2006-05-04 12:21:08 +00:00
Eelco Dolstra d300b4383d * Optimise null-ary term builders. Also declare all term builder
functions as pure, which might improve performance a bit.
2006-05-02 21:58:46 +00:00
Eelco Dolstra 68174bdc7d * Use a linked list of substitutions. This reduces the amount of
copying.
2006-05-02 21:39:02 +00:00
Eelco Dolstra c791e94aee * Removed a bunch of ATreverses. 2006-05-02 17:51:50 +00:00
Eelco Dolstra b52e711910 * Huge reduction in memory use (2/3 or so on large nix-env -qas
operations): share ATermMaps between DrvInfos.
2006-05-02 17:12:03 +00:00
Eelco Dolstra 11ae2d1e7a * Memory reduction: replaced expensive calls to ATmakeApplList by
ATmakeApplArray, and got rid of ATreverse in substitute().
2006-05-02 14:07:28 +00:00
Eelco Dolstra dc719e6ba5 * Some preliminaries towards NIX-45. 2006-05-02 13:39:55 +00:00
Eelco Dolstra 7276e194ee * Disallow unescaped $ in string literals. 2006-05-01 15:29:46 +00:00
Eelco Dolstra 0064599a27 * String interpolation. Expressions like
"--with-freetype2-library=" + freetype + "/lib"

  can now be written as

    "--with-freetype2-library=${freetype}/lib"

  An arbitrary expression can be enclosed within ${...}, not just
  identifiers.

* Escaping in string literals: \n, \r, \t interpreted as in C, any
  other character following \ is interpreted as-is.
  
* Newlines are now allowed in string literals.
2006-05-01 14:01:47 +00:00
Eelco Dolstra 6cecad2be0 * Allow string concatenations involving derivations, e.g.,
configureFlags = "--with-freetype2-library="
      + freetype + "/lib";
2006-05-01 09:56:56 +00:00
Eelco Dolstra ef2d4a2da9 * Print a more useful stack trace when an error occurs deep in the
derivation dependency graph.
2006-03-24 14:02:44 +00:00
Eelco Dolstra b69e469328 * In `nix-env', look for derivations inside attribute sets that have
the `recurseForDerivations' attribute set to `true'.
2006-03-23 16:43:07 +00:00
Eelco Dolstra 49ce8b57dd * Hm. 2006-03-23 16:37:49 +00:00
Eelco Dolstra fdea084c36 * Allow `make check' to work in directories that have symlink
components.
2006-03-10 22:27:26 +00:00
Eelco Dolstra 37d1b1cafd * `nix-env -qa --description' shows human-readable descriptions of
packages (provided that they have a `meta.description' attribute).
  E.g.,

  $ ./src/nix-env/nix-env -qa --description gcc
  gcc-4.0.2   GNU Compiler Collection, 4.0.x (cross-compiler for sparc-linux)
  gcc-4.0.2   GNU Compiler Collection, 4.0.x (cross-compiler for mips-linux)
  gcc-4.0.2   GNU Compiler Collection, 4.0.x (cross-compiler for arm-linux)
  gcc-4.0.2   GNU Compiler Collection, 4.0.x
2006-03-10 16:20:42 +00:00
Eelco Dolstra 2b3b6c9b34 * In theory, this should reduce the number of ATermMap
re-allocations.
2006-03-10 16:14:13 +00:00
Eelco Dolstra 4ada6db1fc * `nix-env -q' now accepts arguments that allow specific derivations
to be queried, e.g., `nix-env -qa firefox'.  This does require the
  argument '*' to be passed if one wants information about all
  derivations, so the old `nix-env -qa' now is `nix-env -qa "*"'.
2006-03-10 10:24:46 +00:00
Eelco Dolstra 18c321308d * Ugh, printHash() was very inefficient because it used
ostringstreams.  Around 11% of execution time was spent here (now
  it's 0.5%).
2006-03-09 17:07:25 +00:00
Eelco Dolstra b90c00e63f * Regression: semantics of the result of getDerivation() changed. 2006-03-09 15:10:01 +00:00
Eelco Dolstra 922697c8b2 * Big speedup (factor > 2.5) in all nix-env operations that do actual
instantiation, e.g. "nix-env -i" and "nix-env -qas" (but not
  "nix-env -qa").  It turns out that many redundant calls to
  addToStore(path) were made, which reads and hashes the entire path.
  For instance, the bash bootstrap binary in Nixpkgs would be read and
  hashed many times.  As a result nix-env would spend around 92% of
  its time in the function sha256_block (according to callgrind).
  Some simple memoization fixes this.
2006-03-09 15:09:18 +00:00
Eelco Dolstra 6dca5c9099 * When obtaining derivations from Nix expressions, ignore all
expressions that cause an assertion failure (like `assert system ==
  "i686-linux"').  This allows all-packages.nix in Nixpkgs to be used
  on all platforms, even if some Nix expressions don't work on all
  platforms.

  Not sure if this is a good idea; it's a bit hacky.  In particular,
  due to laziness some derivations might appear in `nix-env -qa' but
  disappear in `nix-env -qas' or `nix-env -i'.

  Commit 5000!
2006-03-08 16:03:58 +00:00
Eelco Dolstra 9088dee9e2 * Some refactoring of the exception handling code so that we can catch
Nix expression assertion failures.
2006-03-08 14:11:19 +00:00
Eelco Dolstra fa72ae1e9c * GCC 4.1 compatibility. 2006-03-06 14:40:10 +00:00
Eelco Dolstra c8bfb11b34 * `nix-env (-i|-u) --dry-run' now shows exactly which missing paths
will be built or substituted.
2006-03-06 11:21:15 +00:00
Eelco Dolstra 7ba1fd2029 * Regularise help text a bit. 2006-03-06 11:04:39 +00:00
Eelco Dolstra 70dee0f8ca * Flags --to-base32' and --to-base16' to convert between hex and
base-32 hashes.
2006-03-01 18:05:47 +00:00
Eelco Dolstra e136532800 * Ouch, parseHash32 was completely broken. All digits >= 4 were
parsed as 4.

  For a moment I worried that printHash32 was broken, and that would
  have been really, *really* bad ;-)
2006-03-01 17:59:08 +00:00
Eelco Dolstra 74166f2f44 * db.hh shouldn't depend on the Berkeley DB headers. 2006-03-01 17:44:28 +00:00
Eelco Dolstra d822bf32e4 * Close the database before the destructor runs. 2006-03-01 16:36:35 +00:00
Eelco Dolstra b6780b9e10 * Uninitialised variable. Fixes the --delete test. 2006-03-01 14:39:42 +00:00
Eelco Dolstra b602d2dfdf * Wrong delete. Thanks valgrind. 2006-03-01 14:39:10 +00:00
Eelco Dolstra 458820df6c * Generate valid HTML. 2006-03-01 13:24:47 +00:00
Eelco Dolstra 6b8bb8d74a * Remove dead code. 2006-03-01 12:51:39 +00:00
Eelco Dolstra 46f0cb0869 * In "nix-env -i", print a warning if there are multiple derivations
with the same name *and* version number, and pick the first one
  (this means that the order in which channels appear in
  ~/.nix-channels matters).  E.g.:

    $ nix-env ii aterm
    warning: there are multiple derivations named `aterm-2.4.2'; using the first one
    installing `aterm-2.4.2'
2006-02-17 18:11:45 +00:00
Eelco Dolstra 7a3e715980 * Fix for NIX-31: "nix-env -i foo" installing all derivations named
foo.  Now it will only install the one with the highest version
  number.
2006-02-17 17:47:54 +00:00
Eelco Dolstra 889ef564fd * Fix the infamous NIX-17: nix-env -i prints misleading messages
("installing `foo'" followed by "uninstalling `foo'").
2006-02-17 16:26:28 +00:00
Eelco Dolstra 345a95afe9 * Allow the size of the GC reserved file to be specified in nix.conf
through the new `gc-reserved-space' option.
2006-02-16 13:58:10 +00:00
Eelco Dolstra 651ab439cf * A simple hack to fix NIX-18: the garbage collector cannot run when
the disk is full (because to delete something from the Nix store, we
  need a Berkeley DB transaction, which takes up disk space).  Under
  normal operation, we make sure that there exists a file
  /nix/var/nix/db/reserved of 1 MB.  When running the garbage
  collector, we delete that file before we open the Berkeley DB
  environment.
2006-02-16 13:19:15 +00:00
Eelco Dolstra d6f586d0ea * Optional switch "--with-openssl=<PATH>" to use OpenSSL's
implementations of MD5, SHA-1 and SHA-256.  The main benefit is that
  we get assembler-optimised implementations of MD5 and SHA-1 (though
  not SHA-256 (at least on x86), unfortunately).  OpenSSL's SHA-1
  implementation on Intel is twice as fast as ours.
2006-02-13 19:52:43 +00:00
Eelco Dolstra e8475bbd5b * Use a union. 2006-02-13 18:00:08 +00:00
Eelco Dolstra 2d2e28d02c * Override YYMALLOC and YYFREE so that we can call AT[un]protectMemory
on the Bison parse stack.  Otherwise, a garbage collect during
  parsing could lead to a crash.
2006-02-13 13:09:23 +00:00
Eelco Dolstra 982399bb14 * Enable the --attr in nix-build as well (and add -A as an alias).
Example:

    $ nix-build ./all-packages.nix -A xlibs.libX11

  So finally it's easy to perform a test build of a Nix expression!
2006-02-10 17:37:35 +00:00
Eelco Dolstra c6120352b3 * In nix-instantiate, allow us to specify a "path" to the
derivation(s) we're interested, e.g.,

    $ nix-instantiate ./all-packages.nix --attr xlibs.libX11

  List elements can also be selected:

    $ nix-instantiate ./build-for-release.nix --attr 0.subversion

  This allows a non-ambiguous specification of a derivation.  Of
  course, this should also be added to nix-env and nix-build.
2006-02-10 17:25:59 +00:00
Eelco Dolstra 9e51abc7dc * Make --parse-only work when *not* reading from stdin. 2006-02-10 15:28:47 +00:00
Eelco Dolstra f848a45739 * Cleanup: use the code shared with nix-env. 2006-02-10 15:14:57 +00:00
Eelco Dolstra 4eb637c799 * When querying all derivations, filter out syntactically equal derivations. 2006-02-08 16:15:07 +00:00
Eelco Dolstra 8688e83194 * When evaluating, automatically call functions with default arguments. 2006-02-08 15:22:30 +00:00
Eelco Dolstra 287d0ef41c * Oops, fix breakage. 2006-02-08 14:32:33 +00:00
Eelco Dolstra 39f50db731 * Refactoring: move derivation evaluation to libexpr. 2006-02-08 13:21:16 +00:00
Eelco Dolstra 81de538e46 * Use setsid instead of setpgrp in child processes. This not only
creates a new process group but also a new session.  New sessions
  have no controlling tty, so child processes like ssh cannot open
  /dev/tty (which is bad).
2006-02-03 14:20:59 +00:00
Eelco Dolstra b90daaaf6c * When killing a build hook, kill the entire process group (as
intended).  This ensures that any ssh child processes to remote
  machines are also killed, and thus the Nix process on the remote
  machine also exits.  Without this, the remote Nix process will
  continue until it exists or until its stdout buffer gets full and it
  locks up.  (Partially fixes NIX-35.)
2006-02-02 16:27:31 +00:00
Eelco Dolstra 6e2eaaec96 * Print a better error message when writing the patched file (e.g.,
"No space left on device" instead of "Success").  Reported by Karina
  Olmos.
2006-02-01 17:28:13 +00:00
Eelco Dolstra 8291f6d968 * bsdiff updated to 4.3. This makes Nix depend on libbz2. 2006-02-01 16:48:49 +00:00
Eelco Dolstra 9e4ffc43a2 * The "S" bit should be based on the output path, not the derivation path. 2006-02-01 16:47:51 +00:00
Eelco Dolstra db2275cb99 * Oops, the "I" bit in "nix-env -qas" was broken. Reported by Nicolae Vintila. 2006-01-26 23:18:26 +00:00
Eelco Dolstra 1029716a8a * Don't show cycles, they're not very useful. 2006-01-19 15:35:34 +00:00
Eelco Dolstra 5b527901ae * dirOf: return "/", not "", for paths in the root directory. Fixes NIX-26. 2006-01-09 14:52:46 +00:00
Eelco Dolstra 04be39734f * Resolve all symlink components in the location of the temporary
build directory (TMPDIR, i.e., /tmp).  Fixes NIX-26.
2006-01-08 17:16:03 +00:00
Eelco Dolstra 0f8d3c871b * More GCC 2.95 compatibility. 2005-12-25 11:29:12 +00:00
Eelco Dolstra 52d20ef124 * Hack around a GCC 2.95 bug. 2005-12-25 02:02:29 +00:00
Eelco Dolstra 1440419b45 * GCC 2.95 compatibility. 2005-12-24 23:32:59 +00:00
Eelco Dolstra 1d2460ee5d * Documentation fixes. 2005-12-24 23:22:05 +00:00
Eelco Dolstra f96d2dea26 * Added a flag --ignore-liveness' to nix-store --delete'. It
deletes a path even if it is reachable from a root.  However, it
  won't delete a path that still has referrers (since that would
  violate store invariants).

  Don't try this at home.  It's a useful hack for recovering from
  certain situations in a somewhat clean way (e.g., holes in closures
  due to disk corruption).
2005-12-23 21:36:44 +00:00
Eelco Dolstra 4b9e7f59ca * Revived the old "nix-store --delete" operation that deletes the
specified paths from the Nix store.  However, this operation is
  safe: it refuses to delete anything that the garbage collector
  wouldn't delete.
2005-12-23 21:08:42 +00:00
Eelco Dolstra 530b27df1e * `nix-store --gc' prints out the number of bytes freed on stdout
(even when it is interrupted by a signal).
2005-12-15 21:11:39 +00:00
Eelco Dolstra b1eed6b586 * Split the database upgrade into multiple transactions to prevent
Berkeley DB from running out of locks.
2005-12-15 16:53:21 +00:00
Eelco Dolstra ab5c6bb3a3 * Change referer' to referrer' throughout. In particular, the
nix-store query options `--referer' and `--referer-closure' have
  been changed to `--referrer' and `--referrer-closure' (but the old
  ones are still accepted for compatibility).
2005-12-13 21:04:48 +00:00
Eelco Dolstra d87549c1c7 * Automatically delete the old referers table. 2005-12-12 19:14:38 +00:00
Eelco Dolstra 8463f27d8c * Fix NIX-23: quadratic complexity in maintaining the referers
mapping.  The referer table is replaced by a referrer table (note
  spelling fix) that stores each referrer separately.  That is,
  instead of having

    referer[P] = {Q_1, Q_2, Q_3, ...}

  we store

    referer[(P, Q_1)] = ""
    referer[(P, Q_2)] = ""
    referer[(P, Q_3)] = ""
    ...

  To find the referrers of P, we enumerate over the keys with a value
  lexicographically greater than P.  This requires the referrer table
  to be stored as a B-Tree rather than a hash table.

  (The tuples (P, Q) are stored as P + null-byte + Q.)

  Old Nix databases are upgraded automatically to the new schema.
2005-12-12 18:24:42 +00:00
Eelco Dolstra a33b561a6b * Use Berkeley DB 4.4's process registry feature to recover from
crashed Nix instances, and toss out our own recovery code.
2005-12-09 22:55:07 +00:00
Eelco Dolstra 760264bffe * Require Berkeley DB 4.4.
* Checkpoint after an upgrade.
2005-12-06 15:00:04 +00:00
Eelco Dolstra b7f008fc35 * Did something useful while waiting at IAD: reference scanning is now
much faster.
2005-11-16 08:27:06 +00:00
Eelco Dolstra 9311ab76a5 * Install signal handlers for SIGTERM and SIGHUP. This ensures that
Nix is properly shut down when it receives those signals.  In
  particular this ensures that killing the garbage collector doesn't
  cause a subsequent database recovery.
2005-11-04 15:34:09 +00:00
Eelco Dolstra 5bf939885a * Memoise checkVarDefs since internally produced terms (i.e., not the
result of parsing) can have very heavy sharing, causing exponential
  complexity if we naively recurse into them.  ATerms are graphs, not
  trees!
2005-11-04 15:17:05 +00:00
Eelco Dolstra 221c79013f * Turn off build hooks in nix-push because of an impurity (NIX-21). 2005-10-29 18:17:45 +00:00
Rob Vermaas f0856fd905 * Repair the referers table from the references table. 2005-10-29 15:44:02 +00:00
Eelco Dolstra 92d599c6a7 * Prevent uids from being used for more than one build
simultaneously.  We do this using exclusive locks on uid files in
  /nix/var/nix/userpool, e.g., /nix/var/nix/userpool/123 for uid 123.
2005-10-20 16:58:34 +00:00
Eelco Dolstra e932c40f8e * Oops. Fixed-output derivations were broken. 2005-10-19 14:27:44 +00:00
Eelco Dolstra 13b089c890 * Also kill all processes of the build user after the build. This is
critical to prevent certain kinds of 0wnage.
2005-10-17 17:43:21 +00:00
Eelco Dolstra f1b3a418fa * Before starting a build under some uid, kill all current processes
running under that uid.
2005-10-17 17:35:37 +00:00
Eelco Dolstra 439823ae80 * Check that the build result is owned by the build user, and that
nobody else has write permission to the build result.  This catches
  most hack attempts.
2005-10-17 16:59:25 +00:00
Eelco Dolstra 7ef574e5d0 * Don't use FIFOs to make Nix create the output path on behalf of the
builder.  Instead, require that the Nix store has sticky permission
  (S_ISVTX); everyone can created files in the Nix store, but they
  cannot delete, rename or modify files created by others.
2005-10-17 16:52:29 +00:00
Eelco Dolstra 32282abcea * Beginning of secure multi-user Nix stores. If Nix is started as
root (or setuid root), then builds will be performed under one of
  the users listed in the `build-users' configuration variables.  This
  is to make it impossible to influence build results externally,
  allowing locally built derivations to be shared safely between
  users (see ASE-2005 paper).

  To do: only one builder should be active per build user.
2005-10-17 15:33:24 +00:00
Eelco Dolstra dfbf520ec2 * Swap the system and version comparion columns. 2005-10-06 15:51:59 +00:00
Eelco Dolstra cec2be64f3 * Only colorise if we are attached to a terminal. 2005-10-06 15:01:46 +00:00
Eelco Dolstra b87b9c0d1f * New query option: --compare-versions' or -c' to compare installed
versions to available versions, or vice versa.

  For example, the following compares installed versions to available
  versions:

    $ nix-env -qc
    autoconf-2.59            = 2.59
    automake-1.9.4           < 1.9.6
    f-spot-0.0.10            - ?
    firefox-1.0.4            < 1.0.7
    ...

  I.e., there are newer versions available (in the current default Nix
  expression) for Automake and Firefox, but not for Autoconf, and
  F-Spot is missing altogether.

  Conversely, the available versions can be compared to the installed
  versions:

    $ nix-env -qac
    autoconf-2.59                  = 2.59
    automake-1.9.6                 > 1.9.4
    bash-3.0                       - ?
    firefox-1.0.7                  > 1.0.4
    ...

  Note that bash is available but no version of it is installed.

  If multiple versions are available for comparison, then the highest
  is used.  E.g., if Subversion 1.2.0 is installed, and Subversion
  1.1.4 and 1.2.3 are available, then `nix-env -qc' will print `<
  1.2.3', not `> 1.1.4'.

  If higher versions are available, the version column is printed in
  red (using ANSI escape codes).
2005-10-06 14:44:54 +00:00
Eelco Dolstra 0e38578433 * log2xml -> nix-log2xml. 2005-10-05 09:42:13 +00:00
Eelco Dolstra d47e03fccd * Install the XSL stylesheets for log to html conversion. 2005-10-05 09:37:58 +00:00
Eelco Dolstra ebfe57166d * Lets not go wild with templates. 2005-09-22 17:23:43 +00:00
Eelco Dolstra 4578a490ce * Parse multi-valued options. 2005-09-22 15:43:22 +00:00
Eelco Dolstra 8d06842a76 * Configuration options for trusted local builds. 2005-09-21 12:19:39 +00:00
Eelco Dolstra ef9e2c8e73 * Typo. 2005-09-20 16:14:00 +00:00
Eelco Dolstra ed1db42915 * List concatenation must be right-associative for efficiency. 2005-09-14 11:41:59 +00:00
Eelco Dolstra cf2bb91ec8 * Missing #include. 2005-09-13 13:17:01 +00:00
Eelco Dolstra 2bcd65ecf6 * `nix-env -e' corrupts memory due to incorrect use of iterators.
Reported by Rob Vermaas.
2005-09-01 18:14:04 +00:00
Eelco Dolstra e1a6fb7870 * `dependencyClosure' now allows a search path, e.g.,
dependencyClosure { ... searchPath = [ ../foo ../bar ]; ... }

* Primop `dirOf' to return the directory part of a path (e.g., dirOf
  /a/b/c == /a/b).

* Primop `relativise' (according to Webster that's a real word!) that
  given paths A and B returns a string representing path B relative
  path to A; e.g., relativise /a/b/c a/b/x/y => "../x/y".
2005-08-14 14:00:39 +00:00
Eelco Dolstra 08c53923db * A primitive operation `dependencyClosure' to do automatic dependency
determination (e.g., finding the header files dependencies of a C
  file) in Nix low-level builds automatically.

  For instance, in the function `compileC' in make/lib/default.nix, we
  find the header file dependencies of C file `main' as follows:

    localIncludes =
      dependencyClosure {
        scanner = file:
          import (findIncludes {
            inherit file;
          });
        startSet = [main];
      };

  The function works by "growing" the set of dependencies, starting
  with the set `startSet', and calling the function `scanner' for each
  file to get its dependencies (which should yield a list of strings
  representing relative paths).  For instance, when `scanner' is
  called on a file `foo.c' that includes the line

    #include "../bar/fnord.h"

  then `scanner' should yield ["../bar/fnord.h"].  This list of
  dependencies is absolutised relative to the including file and added
  to the set of dependencies.  The process continues until no more
  dependencies are found (hence its a closure).

  `dependencyClosure' yields a list that contains in alternation a
  dependency, and its relative path to the directory of the start
  file, e.g.,

    [ /bla/bla/foo.c
      "foo.c"
      /bla/bar/fnord.h
      "../bar/fnord.h"
    ]

  These relative paths are necessary for the builder that compiles
  foo.c to reconstruct the relative directory structure expected by
  foo.c.

  The advantage of `dependencyClosure' over the old approach (using
  the impure `__currentTime') is that it's completely pure, and more
  efficient because it only rescans for dependencies (i.e., by
  building the derivations yielded by `scanner') if sources have
  actually changed.  The old approach rescanned every time.
2005-08-14 12:38:47 +00:00
Eelco Dolstra 0399365675 * nix-hash: option `--truncate' to truncate the hash to 160 bits. Hmm,
kind of ad hoc ;-)
2005-08-14 10:09:56 +00:00
Eelco Dolstra c680f835c9 * Escape ASCII characters < 32 to Unicode FFFD (REPLACEMENT CHARACTER)
so that we don't produce un-wellformed XML.
2005-08-01 13:39:19 +00:00
Eelco Dolstra f450c8ea2f * Oops. XSL stylesheet to mark errors. 2005-08-01 13:24:04 +00:00
Eelco Dolstra 800a6ff845 * Mark error lines in red, and expand subtrees containing errors
automatically.
2005-08-01 13:23:43 +00:00
Eelco Dolstra 991a130b1e * Added a list concatenation operator:
[1 2 3] ++ [4 5 6] => [1 2 3 4 5 6]
2005-07-25 15:05:34 +00:00
Eelco Dolstra 4c20a08293 * Build dynamic libraries. 2005-07-22 14:52:45 +00:00
Eelco Dolstra 0f827cc607 * Prevent repeated wrapping of closed terms
(closed(closed(closed(...)))) since this reduces performance by
  producing bigger terms and killing caching (which incidentally also
  prevents useful infinite recursion detection).
2005-07-19 11:48:05 +00:00
Eelco Dolstra 2135e7c041 * Wat cleanups. 2005-07-16 23:19:20 +00:00
Eelco Dolstra 6f82a78de7 * Define paths using regexps, as is done in the Flex definition. 2005-07-16 21:38:15 +00:00
Eelco Dolstra 6f91f02f75 * Make the rejects a bit more compact.
* Add lexical restrictions for keywords.
2005-07-16 20:43:58 +00:00
Eelco Dolstra 9590009a74 * Fix ambiguity. 2005-07-16 15:41:27 +00:00
Eelco Dolstra f797cb5855 * Revive and update the SDF grammar for Nix expressions. 2005-07-16 14:07:35 +00:00
Eelco Dolstra 22d3587f3b * In nix-instantiate, at top-level, call functions that have arguments
with default values automatically.  I.e., e -> e {}.

  This feature makes convenience expressions such as
  pkgs/system/i686-linux.nix in Nixpkgs obsolete, since we can just do

  $ nix-instantiate ./pkgs/system/all-packages.nix

  since all-packages.nix takes a single argument (system) that has a
  default value (__thisSystem).
2005-07-12 16:06:25 +00:00
Eelco Dolstra 040140dd1c * Added a primop `removeAttrs' to remove attributes from a set, e.g.,
`removeAttrs attrs ["x", "y"]' returns the set `attrs' with the
  attributes named `x' and `y' removed.  It is not an error for the
  named attributes to be missing from the input set.
2005-05-18 17:19:21 +00:00
Eelco Dolstra 109cde6706 * Ignore (with a warning) invalid garbage collector roots. 2005-05-10 14:56:10 +00:00
Eelco Dolstra 456f3251d2 * Typo. 2005-05-10 14:21:46 +00:00
Eelco Dolstra 9ec7e58aa4 * Handle store path arguments in `nix-env -i' correctly again. 2005-05-09 17:55:35 +00:00
Eelco Dolstra 8f57634c14 * Automatically upgrade the Berkeley DB environment if necessary. 2005-05-09 15:25:47 +00:00
Eelco Dolstra edd145d2fb * Lazily compute the derivation and output paths of derivations. This
makes most query and installation operations much faster (e.g.,
  `nix-env -qa' on the current Nixpkgs is about 10 times faster).
2005-05-08 10:32:09 +00:00
Eelco Dolstra 426593162e * ATermMap needs an assignment operator, otherwise we are screwed. 2005-05-08 10:28:19 +00:00
Eelco Dolstra 77557a6f06 Commit 3000!
* Make the `derivation' primitive much more lazy.  The expression
  `derivation attrs' now evaluates to (essentially)

    attrs // {
      type = "derivation";
      outPath = derivation! attrs;
      drvPath = derivation! attrs;
    }

  where `derivation!' is a primop that does the actual derivation
  instantiation (i.e., it does what `derivation' used to do).  The
  advantage is that it allows commands such as `nix-env -qa' and
  `nix-env -i' to be much faster since they no longer need to
  instantiate all derivations, just the `name' attribute.  (However,
  `nix-env' doesn't yet take advantage of this since it still always
  evaluates the `outPath' and `drvPath' attributes).

  Also, this allows derivations to cyclically reference each other,
  for example,

    webServer = derivation {
      ...
      hostName = "svn.cs.uu.nl";
      services = [svnService];
    };

    svnService = derivation {
      ...
      hostName = webServer.hostName;
    };

  Previously, this would yield a black hole (infinite recursion).
2005-05-07 21:48:49 +00:00
Eelco Dolstra 6057b51835 * Don't try to register GC roots in read-only mode. 2005-05-07 21:33:31 +00:00
Eelco Dolstra 52a2f41320 * Include some required header files. 2005-05-04 16:33:20 +00:00
Eelco Dolstra 26fd28432d * FreeBSD 4.x doesn't have stdint.h, use inttypes.h instead (which is
also part of ISO C).
2005-05-04 16:32:54 +00:00
Eelco Dolstra 5dea0622d1 * Idem (constness fix).
* `compare' in GCC 2.95 is broken.
2005-05-04 16:31:49 +00:00
Eelco Dolstra 4a266e35d4 * GCC 2.95 compatibility fix in constness; strangely, I think this
should not have worked at all.
2005-05-04 16:31:24 +00:00
Eelco Dolstra d7b3cdbd91 * GCC 2.95 compatibility. Prevents internal compiler error in member
template friends.
2005-05-04 16:30:35 +00:00
Eelco Dolstra ae6d9033a1 * The eof() state isn't guaranteed to be set non-lazily. GCC 2.95
compatibility fix.
2005-05-04 16:29:44 +00:00
Eelco Dolstra 02f2da0142 * Merging from nix-make branch:
- Add __currentTime primitive (dangerous!).
  - Allow imports of derivations.
2005-05-02 14:44:58 +00:00
Eelco Dolstra f913283570 * Remove redundant message. 2005-04-13 09:20:27 +00:00
Eelco Dolstra f3660b1c8c * Garbage collector fix: allow deletion of paths that have invalid
(but substitutable) referers.
2005-04-12 10:51:00 +00:00
Eelco Dolstra cab7816b56 * Slightly nicer message. 2005-04-11 08:07:41 +00:00
Eelco Dolstra c9c58dba55 * Primop `__currentSystem' to return the current platform identifier. 2005-04-10 17:38:19 +00:00
Eelco Dolstra c702dfca3f * nix-store: --substitute' -> --register-substitutes'. 2005-04-08 13:48:41 +00:00
Eelco Dolstra 4271385a73 * Make `nix-store --query --tree' work on non-derivations (i.e., on
any store path).
2005-04-08 12:57:16 +00:00
Eelco Dolstra 10c429c757 * If store paths are specified as sources in Nix expressions, don't
copy them, but use them directly.
2005-04-07 14:35:01 +00:00
Eelco Dolstra f9848d4f31 * Support base-32 hash representations. 2005-04-07 14:33:32 +00:00
Eelco Dolstra c815aff21b * `nix-store --add-fixed' to preload the outputs of fixed-output
derivations.  This is mostly to simplify the implementation of
  nix-prefetch-{url, svn}, which now work properly in setuid
  installations.

* Enforce valid store names in `nix-store --add / --add-fixed'.
2005-04-07 14:01:51 +00:00
Eelco Dolstra 6f788880b6 * Re-enable dot graph generation. 2005-03-26 22:06:57 +00:00
Eelco Dolstra 298dd487bb * When finding live paths, the deriver need not be valid. 2005-03-25 14:31:12 +00:00
Eelco Dolstra 7eaf038763 * `nix-store --verify': repair bad referer mappings. 2005-03-25 14:21:49 +00:00
Eelco Dolstra c6178f0b03 * Create missing log and temproots directories automatically (reported
by Rob).
2005-03-24 17:46:38 +00:00
Eelco Dolstra cff6bc06df * Fix endianness bug. 2005-03-23 19:18:22 +00:00
Eelco Dolstra 0df9f08078 * Export the references graph to the build hook. 2005-03-23 13:16:36 +00:00
Eelco Dolstra 3f236f01ae * `nix-store --register-validity': allow a path to refer to a path
listed later in the list of new valid paths.
2005-03-23 13:07:28 +00:00
Eelco Dolstra a04c62e0c4 * Canonicalise path meta-data in `nix-store --register-validity'. 2005-03-23 12:06:57 +00:00
Eelco Dolstra f20f081560 * nix-store: --isvalid' -> --check-validity', `--validpath' ->
`--register-validity'.
* `nix-store --register-validity': read arguments from stdin, and
  allow the references and deriver to be set.
2005-03-23 11:25:20 +00:00
Eelco Dolstra c757d16c8c * Bug in clearSubstitutes(). 2005-03-14 18:54:40 +00:00
Eelco Dolstra 08df443618 * Check for duplicate attributes and formal parameters in Nix
expressions.
2005-03-10 11:33:46 +00:00
Eelco Dolstra 4bbdcfbb45 * Don't use fork() in copyPath(), but a string buffer. 2005-03-03 13:58:02 +00:00
Eelco Dolstra 86cb3cc554 * Increase Berkeley DB limits a bit more.
* Maintain the cleanup invariant in clearSubstitutes().
2005-03-03 13:10:44 +00:00
Eelco Dolstra 07b4399fb6 * `nix-store -q --hash' to quickly query the hash of the contents of a
store path (which is stored in the database).
2005-03-02 15:57:06 +00:00
Eelco Dolstra bfaf83a0fd * When multiple derivations are specified in `nix-store -r', don't
continue building when one fails unless `--keep-going' is
  specified.
* When `--keep-going' is specified, print out the set of failing
  derivations at the end (otherwise it can be hard to find out which
  failed).
2005-02-23 11:19:27 +00:00
Eelco Dolstra 3a2c3f0cf2 * Support for fixed-output hashes over directory trees (i.e., over the
NAR dump of the path).
2005-02-22 21:14:41 +00:00
Eelco Dolstra eda2c3c253 * Compatibility hack so that Nixpkgs can continue to do hash checking
in `fetchurl' in Nix <= 0.7, but doesn't in Nix 0.8.
2005-02-22 15:23:24 +00:00
Eelco Dolstra 3c1630131e * Subtle bug in the builder: if a subgoal that is instantiated
multiple times is also a top-level goal, then the second and later
  instantiations would never be created because there would be a
  stable pointer to the first one that would keep it alive in the
  WeakGoalMap.
* Some tracing code for debugging this kind of problem.
2005-02-18 09:50:20 +00:00
Eelco Dolstra e0181f56be * `nix-store -q --tree' shows a tree representing the dependency graph
of the given derivation.  Useful for getting a quick overview of how
  something was built.  E.g., to find out how the `baffle' program in
  your user environment was built, you can do

    $ nix-store -q --tree $(nix-store -qd $(which baffle))

  Tree nesting depth is minimised (?) by topologically sorting paths
  under the relation A < B iff A \in closure(B).
2005-02-17 15:57:46 +00:00
Eelco Dolstra 74ab0695b5 * Compatibility hack with older user environments. 2005-02-17 15:48:50 +00:00
Eelco Dolstra 8a3a96dd5b * Switch to the calling user context for some more operations in a
setuid installation.
2005-02-17 13:55:18 +00:00
Eelco Dolstra 88273f9574 * Put build logs in $prefix/var/nix/log/drvs/. 2005-02-17 13:54:45 +00:00
Eelco Dolstra 202d5bbda5 * Compatibility with older GCCs. 2005-02-15 12:05:47 +00:00
Eelco Dolstra e17910cfb5 * And yet another installation source: the ability to copy user
environment elements from one user environment to another, e.g.,

    $ nix-env -i --from-profile /nix/var/nix/profiles/other-profile aterm
    
  copies the `aterm' component installed in the `other-profile' to the
  user's current profile.
2005-02-15 10:49:31 +00:00
Eelco Dolstra 8992fce3da * It is now possible to add store derivations or paths directly to a
user environment, e.g.,

    $ nix-env -i /nix/store/z58v41v21xd3ywrqk1vmvdwlagjx7f10-aterm-2.3.1.drv

  or 

    $ nix-env -i /nix/store/hsyj5pbn0d9iz7q0aj0fga7cpaadvp1l-aterm-2.3.1

  This is useful because it allows Nix expressions to be bypassed
  entirely.  For instance, if only a nix-pull manifest is provided,
  plus the top-level path of some component, it can be installed
  without having to supply the Nix expression (e.g., for obfuscation,
  or to be independent of Nix expression language changes or context
  dependencies).
2005-02-14 17:35:10 +00:00
Eelco Dolstra e446d342b7 * Added an installation source --from-expression' (or -E') to
install derivations from a Nix expression specified on the command
  line.  This is particularly useful for disambiguation if there are
  multiple derivations with the same name.  For instance, in Nixpkgs,
  to install the Firefox wrapper rather than the plain Firefox
  component:

    $ nix-env -f .../i686-linux.nix -i -E 'x: x.firefoxWrapper'

  The Nix expressions should be functions to which the default Nix
  expression (in this case, `i686-linux.nix') is passed, hence `x:
  ...'.

  This might also be a nice way to deal with high-level (user-level)
  variability, e.g.,

    $ nix-env -f ./server.nix -i -E 'x: x {port = 8080; ssl = false;}'
2005-02-14 17:07:43 +00:00
Eelco Dolstra 0cb016c209 * Refactoring. Hope this doesn't break the semantics of `-u' ;-) 2005-02-14 16:16:02 +00:00
Eelco Dolstra a04a5de8f7 * Implement the `gc-keep-derivations' global configuretion flag. 2005-02-14 14:16:56 +00:00
Eelco Dolstra 6a8ef36fe6 * Global configuration option `env-keep-derivations' to store pointer
to derivations in user environments.  Nice for developers (since it
  prevents build-time-only dependencies from being GC'ed, in
  conjunction with `gc-keep-outputs').  Turned off by default.
2005-02-14 13:07:09 +00:00
Eelco Dolstra b0aba6ec2a * Don't keep the derivation symlink when creating profile generations. 2005-02-14 10:44:57 +00:00
Eelco Dolstra 32429142cd * Type error in constructor call (caught by GCC 3.3, but not 3.4!). 2005-02-14 09:53:11 +00:00
Eelco Dolstra 20ce2642fc * Refactoring to support different installation sources in nix-env.
* Set the references for the user environment manifest properly.
* Don't copy the manifest (this was accidental).
* Don't store derivation paths in the manifest (maybe this should be
  made optional).  This cleans up the semantics of nix-env, which were
  weird.
* Hash on the output paths of activated components, not on derivation
  paths.  This is because we don't know the derivation path of already
  installed components anymore, and it allows the installation of
  components by store path (skipping Nix expressions entirely).
* Query options `--out-path' and `--drv-path' to show the output and
  derivation paths of components, respectively (the latter replaces
  the `--expr' query).
2005-02-11 16:56:45 +00:00
Eelco Dolstra 80870d9291 * Input sources should be in the set of all referenceable paths too. 2005-02-11 16:03:47 +00:00
Eelco Dolstra 3a99616968 * Commit more often to prevent out-of-memory errors. 2005-02-09 14:37:24 +00:00
Eelco Dolstra 98df735b51 * Propagate the deriver of a path through the substitute mechanism.
* Removed some dead code (successor stuff) from nix-push.
* Updated terminology in the tests (store expr -> drv path).
* Check that the deriver is set properly in the tests.
2005-02-09 12:57:13 +00:00
Eelco Dolstra 582e01c06f * Automatically upgrade <= 0.7 Nix stores to the new schema (so that
existing user environments continue to work).
* `nix-store --verify': detect incomplete closures.
2005-02-09 09:50:29 +00:00
Eelco Dolstra c547439843 * Subflag in --verify': nix-store --verify --check-contents' checks
that the contents of store paths has not changed by comparing hashes
  of their current contents to the hashes stored in the database.
2005-02-08 13:48:53 +00:00
Eelco Dolstra 3d74274b37 * Updated `nix-store --verify' to the new schema. 2005-02-08 13:23:55 +00:00
Eelco Dolstra fbc434ee4c * `nix-store -qb' to query derivation environment bindings. Useful
for finding build-time dependencies (possibly after a build).  E.g.,

    $ nix-store -qb aterm $(nix-store -qd $(which strc))
    /nix/store/jw7c7s65n1gwhxpn35j9rgcci6ilzxym-aterm-2.3.1

* Arguments to nix-store can be files within store objects, e.g.,
  /nix/store/jw7c...-aterm-2.3.1/bin/baffle.

* Idem for garbage collector roots.
2005-02-07 14:32:44 +00:00
Eelco Dolstra 450c358e20 * Maintain a database table (`derivers') that maps output paths to the
derivation that produced them.
* `nix-store -qd PATH' prints out the derivation that produced a path.
2005-02-07 13:40:40 +00:00
Eelco Dolstra a37338815d * A GC setting `gc-keep-outputs' to specify whether output paths of
derivations should be kept.
2005-02-01 22:07:48 +00:00
Eelco Dolstra 65b6c8ab4c * Move root finding from nix-collect-garbage' to nix-store --gc'.
This was necessary becase root finding must be done after
  acquisition of the global GC lock.

  This makes `nix-collect-garbage' obsolete; it is now just a wrapper
  around `nix-store --gc'.

* Automatically remove stale GC roots (i.e., indirect GC roots that
  point to non-existent paths).
2005-02-01 15:05:32 +00:00
Eelco Dolstra 630ae0c9d7 * nix-build: use an indirection scheme to make it easier for users to
get rid of GC roots.  Nix-build places a symlink `result' in the
  current directory.  Previously, removing that symlink would not
  remove the store path being linked to as a GC root.  Now, the GC
  root created by nix-build is actually a symlink in
  `/nix/var/nix/gcroots/auto' to `result'.  So if that symlink is
  removed the GC root automatically becomes invalid (since it can no
  longer be resolved).  The root itself is not automatically removed -
  the garbage collector should delete dangling roots.
2005-02-01 13:48:46 +00:00
Eelco Dolstra dcc37c236c * nix-store, nix-instantiate: added an option `--add-root' to
immediately add the result as a permanent GC root.  This is the only
  way to prevent a race with the garbage collector.  For instance, the
  old style

    ln -s $(nix-store -r $(nix-instantiate foo.nix)) \
      /nix/var/nix/gcroots/result

  has two time windows in which the garbage collector can interfere
  (by GC'ing the derivation and the output, respectively).  On the
  other hand,

    nix-store --add-root /nix/var/nix/gcroots/result -r \
      $(nix-instantiate --add-root /nix/var/nix/gcroots/drv \
        foo.nix)

  is safe.

* nix-build: use `--add-root' to prevent GC races.
2005-02-01 12:36:25 +00:00
Eelco Dolstra 06b4424286 * Add missing files to dist.
* Fix GC and substitute bugs related to self-references.  Add a
  regression test.
2005-02-01 09:23:38 +00:00
Eelco Dolstra 32fa82a56a * Acquire a global GC lock to prevent new temporary root files from
being created after the garbage collector has read the temproots
  directory.  This blocks the creation of new processes, but the
  garbage collector could periodically release the GC lock to allow
  them to run.
2005-01-31 22:23:49 +00:00
Eelco Dolstra 89c9bc11ab * Add a test for a more subtle race: a process starting after the
temporary root files have been read but creating outputs before the
  store directory has been read.
2005-01-31 22:01:55 +00:00
Eelco Dolstra 207bdcbe86 * Automatically remove temporary root files. 2005-01-31 21:20:59 +00:00
Eelco Dolstra 252c9c91ab * Topologically sort paths under the references relation to ensure
that they are deleted in an order that maintains the closure
  invariant.
* Presence of a path in a temporary roots file does not imply that all
  paths in its closure are also present, so add the closure.
2005-01-31 14:00:43 +00:00
Eelco Dolstra 33c5d23b81 * Don't delete active lock files. 2005-01-31 12:19:53 +00:00
Eelco Dolstra 1328aa3307 * Start of concurrent garbage collection. Processes write temporary
roots to a per-process temporary file in /nix/var/nix/temproots
  while holding a write lock on that file.  The garbage collector
  acquires read locks on all those files, thus blocking further
  progress in other Nix processes, and reads the sets of temporary
  roots.
2005-01-31 10:27:25 +00:00
Eelco Dolstra 22cfdfa246 * Use NIX_STORE environment variable to locate the store (in addition
to NIX_STORE_DIR) so that Nix invocations in builders in `make
  check' work correctly if the store doesn't exist.
2005-01-28 13:19:16 +00:00
Eelco Dolstra 0ea8b6993a * Only invalidate paths when they are in fact valid. 2005-01-28 11:05:46 +00:00
Eelco Dolstra a85d1849af * Missing dependency; only a problem when building from Subversion. 2005-01-27 19:00:48 +00:00
Eelco Dolstra 8a3eef22e3 * Fix deadlock. 2005-01-27 17:48:14 +00:00
Eelco Dolstra c60a4943ba * Update referers mappings when updating/clearing the references
mapping.
* Do things in the right order in invalidatePath().
2005-01-27 16:18:39 +00:00
Eelco Dolstra c505702265 * Fix and simplify the garbage collector (it's still not concurrent,
though).  In particular it's now much easier to register a GC root.
  Just place a symlink to whatever store path it is that you want to
  keep in /nix/var/nix/gcroots.
2005-01-27 15:21:29 +00:00
Eelco Dolstra 59682e6188 * Make lock removal safe by signalling to blocked processes that the
lock they are waiting on has become stale (we do this by writing a
  meaningless token to the unlinked file).
2005-01-27 12:19:25 +00:00
Eelco Dolstra a24b78e9f1 * Maintain the references/referers relation also for derivations.
This simplifies garbage collection and `nix-store --query
  --requisites' since we no longer need to treat derivations
  specially.

* Better maintaining of the invariants, e.g., setReferences() can only
  be called on a valid/substitutable path.
2005-01-25 21:28:25 +00:00
Eelco Dolstra 2a2756b856 * Simplification: registerSubstitutes -> registerSubstitute. We no
longer need the former since there we no longer have the
  substitutes-rev table (which triggered a O(n^2) cost in updating
  them).
2005-01-25 20:27:40 +00:00
Eelco Dolstra 066da4ab85 * Really fix the substitute mechanism, i.e., ensure the closure
invariant by registering references through the manifest.
* Added a test for nix-pull.
2005-01-25 17:08:52 +00:00
Eelco Dolstra c6290e42bc * Fix the `--fallback' switch.
* Fix the substitutes tests.
2005-01-25 13:00:12 +00:00
Eelco Dolstra 581fc47783 * Fix the build hook mechanism; pass the pointer graph to the hook. 2005-01-25 11:55:43 +00:00
Eelco Dolstra 52bf9b86bb * In nix-store: added query `--referers-closure' that returns the
closure of the referers relation rather than the references
  relation, i.e., the set of all paths that directly or indirectly
  refer to the given path.  Note that contrary to the references
  closure this set is not fixed; it can change as paths are added to
  or removed from the store.
2005-01-25 11:18:03 +00:00
Eelco Dolstra 80faa2f98a * In nix-store: change --build' back to --realise'. Also brought
back the query flag `--force-realise'.
* Fixed some of the tests.
2005-01-25 10:55:33 +00:00
Eelco Dolstra 6a0a2d5593 * Terminology fixes. 2005-01-20 16:01:07 +00:00
Eelco Dolstra 6bb5efadec * Ensure that derivation names and sources don't end in `.drv'. 2005-01-20 15:25:01 +00:00
Eelco Dolstra 05f0430de1 * Another change to low-level derivations. The last one this year, I
promise :-) This allows derivations to specify on *what* output
  paths of input derivations they are dependent.  This helps to
  prevent unnecessary downloads.  For instance, a build might be
  dependent on the `devel' and `lib' outputs of some library
  component, but not the `docs' output.
2005-01-20 14:10:19 +00:00
Eelco Dolstra e0f4e587c3 * Nix-store queries --references' and referers' to query the pointer
graph.  That is, `nix-store --query --references PATH' shows the set
  of paths referenced by PATH, and `nix-store --query --referers PATH'
  shows the set of paths referencing PATH.
2005-01-19 16:59:56 +00:00
Eelco Dolstra 96de272b48 * Renamed normalise.cc' -> build.cc', `storeexprs.cc' ->
`derivations.cc', etc.
* Store the SHA-256 content hash of store paths in the database after
  they have been built/added.  This is so that we can check whether
  the store has been messed with (a la `rpm --verify').
* When registering path validity, verify that the closure property
  holds.
2005-01-19 16:39:47 +00:00
Eelco Dolstra ef5f254a55 * `nix-store --build' now builds its arguments in parallel instead of
sequentially (within the limits set by `--jobs').  This should
  greatly improve the utilisation of the build farm when doing Nixpkgs
  builds.
2005-01-19 15:02:02 +00:00
Eelco Dolstra 06c77bf7a8 * Change extension .store' to .drv'.
* Re-enable `nix-store --query --requisites'.
2005-01-19 14:36:00 +00:00
Eelco Dolstra 863dcff6c5 * Started removing closure store expressions, i.e., the explicit
representation of closures as ATerms in the Nix store.  Instead, the
  file system pointer graph is now stored in the Nix database.  This
  has many advantages:

  - It greatly simplifies the implementation (we can drop the notion
    of `successors', and so on).

  - It makes registering roots for the garbage collector much easier.
    Instead of specifying the closure expression as a root, you can
    simply specify the store path that must be retained as a root.
    This could not be done previously, since there was no way to find
    the closure store expression containing a given store path.
    
  - Better traceability: it is now possible to query what paths are
    referenced by a path, and what paths refer to a path.
2005-01-19 11:16:11 +00:00
Eelco Dolstra e9762e2d10 * Support arities > 6. 2005-01-19 11:04:24 +00:00
Eelco Dolstra 6d493751c3 * Get --readonly-mode to work again. 2005-01-18 11:15:50 +00:00
Eelco Dolstra 32aac8748a * Actually check that the result of fixed-output derivations matches
the specified hash.
2005-01-17 19:01:48 +00:00
Eelco Dolstra f3dc231250 * Removed the `id' attribute hack.
* Formalise the notion of fixed-output derivations, i.e., derivations
  for which a cryptographic hash of the output is known in advance.
  Changes to such derivations should not propagate upwards through the
  dependency graph.  Previously this was done by specifying the hash
  component of the output path through the `id' attribute, but this is
  insecure since you can lie about it (i.e., you can specify any hash
  and then produce a completely different output).  Now the
  responsibility for checking the output is moved from the builder to
  Nix itself.

  A fixed-output derivation can be created by specifying the
  `outputHash' and `outputHashAlgo' attributes, the latter taking
  values `md5', `sha1', and `sha256', and the former specifying the
  actual hash in hexadecimal or in base-32 (auto-detected by looking
  at the length of the attribute value).  MD5 is included for
  compatibility but should be considered deprecated.

* Removed the `drvPath' pseudo-attribute in derivation results.  It's
  no longer necessary.

* Cleaned up the support for multiple output paths in derivation store
  expressions.  Each output now has a unique identifier (e.g., `out',
  `devel', `docs').  Previously there was no way to tell output paths
  apart at the store expression level.

* `nix-hash' now has a flag `--base32' to specify that the hash should
  be printed in base-32 notation.

* `fetchurl' accepts parameters `sha256' and `sha1' in addition to
  `md5'.

* `nix-prefetch-url' now prints out a SHA-1 hash in base-32.  (TODO: a
  flag to specify the hash.)
2005-01-17 16:55:19 +00:00
Eelco Dolstra d58a11e019 * Shorten SHA-256 hashes used in store path name generation to 160
bits, then encode them in a radix-32 representation (using digits
  and letters except e, o, u, and t).  This produces store paths like
  /nix/store/4i0zb0z7f88mwghjirkz702a71dcfivn-aterm-2.3.1.  The nice
  thing about this is that the hash part of the file name is still 32
  characters, as before with MD5.

  (Of course, shortening SHA-256 to 160 bits makes it no better than
  SHA-160 in theory, but hopefully it's a bit more resistant to
  attacks; it's certainly a lot slower.)
2005-01-14 16:04:03 +00:00
Eelco Dolstra 9530cc3170 * Start move towards SHA-256 hashes instead of MD5.
* Start cleaning up unique store path generation (they weren't always
  unique; in particular the suffix ("-aterm-2.2", "-builder.sh") was
  not part of the hash, therefore changes to the suffix would cause
  multiple store objects with the same hash).
2005-01-14 13:51:38 +00:00
Eelco Dolstra 63791eb05b * Add SHA-256.
* Tests for the various hashes.
2005-01-14 12:03:04 +00:00
Eelco Dolstra 37b51a9aa6 * Removed some dead code. 2005-01-14 10:16:33 +00:00
Eelco Dolstra 7e8961f720 * Added SHA-1 support. nix-hash' now has an option --type sha1' to
select SHA-1 hashing.
2005-01-13 17:39:26 +00:00
Eelco Dolstra 73992371a3 * Refactoring to support SHA-1. 2005-01-13 15:44:44 +00:00
Eelco Dolstra a03397be4c * Cygwin compatibility. 2005-01-04 17:38:26 +00:00
Eelco Dolstra 4f07ebc67e * Integrated bsdiff/bspatch 4.2 (from
http://www.daemonology.net/bsdiff/bsdiff-4.2.tar.gz) into the source
  tree.  The license is a bit peculiar, but it does allow verbatim
  copying, which is what we do here (i.e., so don't make any changes
  to the sources).
2004-12-29 22:08:48 +00:00
Eelco Dolstra 8b9697e575 * An operation `nix-store --clear-substitutes' to remove all
registered substitute mappings.
2004-12-20 14:16:55 +00:00
Eelco Dolstra fa9259f5f5 * Simplify the substitute mechanism:
- Drop the store expression.  So now a substitute is just a
    command-line invocation (a program name + arguments).  If you
    register a substitute you are responsible for registering the
    expression that built it (if any) as a root of the garbage
    collector.
  - Drop the substitutes-rev DB table.
2004-12-20 13:43:32 +00:00
Eelco Dolstra 13f77276d1 * utime() follows symlinks, so don't change the mtime if the file is a
symlink.
2004-11-29 19:22:16 +00:00
Eelco Dolstra f17553a212 * Remove debug statement. 2004-11-29 15:30:44 +00:00
Eelco Dolstra 4115d8d8ce * Canonicalise metadata of all files in store paths (set the mtime to
0, set the mode to either 444 or 555, set the group to the default).
2004-11-29 15:09:29 +00:00
Eelco Dolstra 54c7a870d5 * Document --delete-generations and other nix-env options. 2004-11-12 23:56:37 +00:00
Eelco Dolstra c2b0d6b02f * Document --eval-only and --parse-only options in nix-instantiate. 2004-11-12 23:22:08 +00:00
Eelco Dolstra 92ee003dc9 * Fix broken format string. 2004-11-08 15:20:52 +00:00
Eelco Dolstra cb7ccb528b * string2ATerm -> overloaded toATerm. 2004-11-03 18:12:03 +00:00
Eelco Dolstra a69534fc21 * Drop ATmake / ATMatcher also in handling store expressions. 2004-10-29 11:22:49 +00:00
Eelco Dolstra 3277c9432a * Bug fix in parsing of /* ... */ comments; due to longest match
regexp there could be only one such comment per file.
2004-10-27 13:00:31 +00:00
Eelco Dolstra f09618b63a * Turn on read-only mode in queries. This prevents redundant store I/O. 2004-10-27 10:24:44 +00:00
Eelco Dolstra c7bea941b0 * Oops, I did it again. 2004-10-27 10:05:51 +00:00
Eelco Dolstra 210ab0296d * Add file to `make dist'. 2004-10-27 00:02:31 +00:00
Eelco Dolstra c52dda95a6 * Bug: check that term is an application. 2004-10-26 23:30:18 +00:00
Eelco Dolstra 5fe9222b36 * Don't use ATmake / ATmatch anymore, nor the ATMatcher class.
Instead we generate data bindings (build and match functions) for
  the constructors specified in `constructors.def'.  In particular
  this removes the conversions between AFuns and strings, and Nix
  expression evaluation now seems 3 to 4 times faster.
2004-10-26 22:54:26 +00:00
Eelco Dolstra eb8284ddaa * Evaluate argument to `import'. 2004-10-26 17:10:09 +00:00
Eelco Dolstra 033d7c6593 * Doh! 2004-10-26 17:04:55 +00:00
Eelco Dolstra 9fa07b376d * String/path concatenation operator (`+'). 2004-10-26 17:01:35 +00:00
Eelco Dolstra ee401afad8 * Mode --parse-only' to parse the input (on stdin, -'), and print
out the AST as an ATerm.
* Mode `--eval-only' to parse and evaluate the input, and print the
  resulting normal form as an ATerm.

Neither of these modes require store/DB write permission.
2004-10-26 16:59:36 +00:00
Eelco Dolstra 37d7abd694 * New language feature: with expressions.
The expression `with E1; E2' evaluates to E2 with all bindings in
  the attribute set E1 substituted.  E.g.,

    with {x = 123;}; x

  evaluates to 123.  That is, the attribute set E1 is in scope in E2.

  This is particularly useful when importing files containing lots
  definitions.  E.g., instead of

    let {
      inherit (import ./foo.nix) a b c d e f;

      body = ... a ... f ...;
    }

  we can now say

    with import ./foo.nix;

    ... a ... f ...

  I.e., we don't have to say what variables should be brought into scope.
2004-10-25 16:54:56 +00:00
Eelco Dolstra f4d44a0026 * Allow certain operations to succeed even if we don't have write
permission to the Nix store or database.  E.g., `nix-env -qa' will
  work, but `nix-env -qas' won't (the latter needs DB access).  The
  option `--readonly-mode' forces this mode; otherwise, it's only
  activated when the database cannot be opened.
2004-10-25 14:38:23 +00:00
Eelco Dolstra 3ade3e7721 * Revert r1594 - it didn't solve the problem. Instead add
svn-revision to distributions, which should fix it.
2004-10-25 13:51:34 +00:00
Eelco Dolstra 2248becfd3 * Make sure that the prerelease version is included in `--version'. 2004-10-25 12:15:50 +00:00
Eelco Dolstra d830b2c1df * In `nix-env -q', sort derivations by name *without* case
sensitivity.
2004-10-14 15:09:55 +00:00