Commit graph

466 commits

Author SHA1 Message Date
Eelco Dolstra
10dcee99ed Remove the quickExit function 2012-11-09 16:42:10 +01:00
Eelco Dolstra
e666e1156f Handle octal escapes in /proc/self/mountinfo 2012-09-28 21:39:30 -04:00
Eelco Dolstra
76e88871b2 Templatise tokenizeString() 2012-09-19 15:43:23 -04:00
Eelco Dolstra
e94806d030 Merge branch 'master' into no-manifests 2012-08-27 11:09:07 -04:00
Eelco Dolstra
56e30e161c In the chroot, make all mounted filesystems private
This is required on systemd, which mounts filesystems as "shared"
subtrees.  Changes to shared trees in a private mount namespace are
propagated to the outside world, which is bad.
2012-08-20 15:27:30 -04:00
Eelco Dolstra
01d56c1eec Drop the block count in the garbage collector 2012-08-01 22:34:46 -04:00
Eelco Dolstra
79bba3782c Doh 2012-08-01 17:21:47 -04:00
Eelco Dolstra
c770a2422a Report substituter errors to clients of the Nix daemon 2012-08-01 11:19:24 -04:00
Eelco Dolstra
3a4623afbb Set permissions on temporary build directories to 0700
Fixes #39.
2012-07-26 15:04:40 -04:00
Eelco Dolstra
1db38ae81b When using chroots, use a private PID namespace
In a private PID namespace, processes have PIDs that are separate from
the rest of the system.  The initial child gets PID 1.  Processes in
the chroot cannot see processes outside of the chroot.  This improves
isolation between builds.  However, processes on the outside can see
processes in the chroot and send signals to them (if they have
appropriate rights).

Since the builder gets PID 1, it serves as the reaper for zombies in
the chroot.  This might turn out to be a problem.  In that case we'll
need to have a small PID 1 process that sits in a loop calling wait().
2012-06-25 15:45:16 -04:00
Eelco Dolstra
35355fc1fc Set the close-on-exec flag on file descriptors 2012-03-05 20:29:00 +01:00
Eelco Dolstra
bd013b6f98 On Linux, make the Nix store really read-only by using the immutable bit
I was bitten one time too many by Python modifying the Nix store by
creating *.pyc files when run as root.  On Linux, we can prevent this
by setting the immutable bit on files and directories (as in ‘chattr
+i’).  This isn't supported by all filesystems, so it's not an error
if setting the bit fails.  The immutable bit is cleared by the garbage
collector before deleting a path.  The only tricky aspect is in
optimiseStore(), since it's forbidden to create hard links to an
immutable file.  Thus optimiseStore() temporarily clears the immutable
bit before creating the link.
2012-02-15 01:31:56 +01:00
Eelco Dolstra
d5a5a83ad4 Use data() instead of c_str() where appropriate 2012-02-09 18:27:45 +01:00
Eelco Dolstra
b33da599c5 * In the garbage collector, delete invalid paths before deleting
unreachable paths.  This matters when using --max-freed etc.:
  unreachable paths could become reachable again, so it's nicer to
  keep them if there is "real" garbage to be deleted.  Also, don't use
  readDirectory() but read the Nix store and delete invalid paths in
  parallel.  This reduces GC latency on very large Nix stores.
2011-12-22 15:55:53 +00:00
Eelco Dolstra
d787285af9 * nix-instantiate: return exit status 100 to denote a permanent build
failure.  The build hook can use this to distinguish between
  transient and permanent failures on the remote side.
2010-12-13 16:53:23 +00:00
Eelco Dolstra
100becf8d1 * createDirs(path): if path already exists, make sure it's a
directory.
* Provide a C++ wrapper around lstat().
2010-12-13 13:32:58 +00:00
Eelco Dolstra
71dfe4b90b * Sync with the trunk. 2010-10-04 11:44:47 +00:00
Eelco Dolstra
450837bcc8 * In printMsg(), ignore failing writes to stderr if we're in an
exception handler, otherwise throw an exception.  We need to ignore
  write errors in exception handlers to ensure that cleanup code runs
  to completion if the other side of stderr has been closed
  unexpectedly.
2010-10-04 11:23:07 +00:00
Eelco Dolstra
766f708418 * Experimental feature: allow a derivation to tell the build hook that
it requires a certain feature on the build machine, e.g.

    requiredSystemFeatures = [ "kvm" ];

  We need this in Hydra to make sure that builds that require KVM
  support are forwarded to machines that have KVM support.  Probably
  this should also be enforced for local builds.
2010-08-27 13:18:13 +00:00
Eelco Dolstra
587dc8aa00 * Sync with the trunk. 2010-08-04 17:48:29 +00:00
Peter Simons
bcec46057c src/libutil/util.cc: include <limit.h> to ensure that PATH_MAX is defined 2010-06-24 17:51:13 +00:00
Eelco Dolstra
aa45027818 * Sync with the trunk. 2010-05-12 22:13:09 +00:00
Eelco Dolstra
d66ea83a76 * Sync with the trunk. 2010-04-20 09:20:29 +00:00
Eelco Dolstra
efc7a579e8 * Don't use the ATerm library for parsing/printing .drv files. 2010-04-19 13:46:58 +00:00
Eelco Dolstra
0d272fca79 * Remove some obsolete functions. 2010-04-12 23:31:47 +00:00
Eelco Dolstra
141294ff38 * Clean up error messages in killUser(). 2010-03-19 11:36:34 +00:00
Eelco Dolstra
84a4dd5ff0 * Don't use fdatasync since it doesn't work on Snow Leopard.
* Don't refer to config.h in util.hh, because config.h is not
  installed (http://hydra.nixos.org/build/303053).
2010-02-24 15:46:06 +00:00
Eelco Dolstra
5954eadf67 * Remove the fdatasync check since it's no longer needed. 2010-02-24 12:16:50 +00:00
Ludovic Courtès
20186a4079 Don't rely on `PATH_MAX' on GNU. 2010-02-10 15:55:50 +00:00
Eelco Dolstra
4bbbe25802 * Remove most Cygwin-specific code. Cygwin 1.7 implements advisory
POSIX locks, and simulates Unix-style file deletion semantics
  sufficiently.  Note that this means that Nix won't work on Cygwin
  1.5 anymore.
2010-02-02 15:28:36 +00:00
Eelco Dolstra
07ffdc2862 * Added an option "fsync-metadata" to fsync() changes to
/nix/var/nix/db.
* Removed the function writeStringToFile since it does (almost) the
  same thing as writeFile.
2010-01-29 12:22:58 +00:00
Eelco Dolstra
9b8fda796b * Templatise getIntArg / string2Int. 2009-11-24 12:26:25 +00:00
Eelco Dolstra
8022015552 * In the garbage collector, don't count files with a link count > 1 in
the "bytes/blocks freed" statistics.
2009-11-24 10:51:52 +00:00
Eelco Dolstra
f2c3fc5191 * Don't show trace information by default (`--show-trace' to enable).
NixOS evaluation errors in particular look intimidating and
  generally aren't very useful.  Ideally the builtins.throw messages
  should be self-contained.
2009-06-30 13:28:29 +00:00
Eelco Dolstra
3a2bbe7f8a * Simplify communication with the hook a bit (don't use file
descriptors 3/4, just use stdin/stderr).
2009-03-28 19:29:55 +00:00
Eelco Dolstra
9ccdb80de3 * Don't ignore errors from writing to stderr. That way, when
nix-store -r (or some other operation) is started via ssh, it will
  at least have a chance of terminating quickly when the connection is
  killed.  Right now it just runs to completion, because it never
  notices that stderr is no longer connected to anything.  Of course
  it would be better if sshd would just send a SIGHUP, but it doesn't
  (https://bugzilla.mindrot.org/show_bug.cgi?id=396).
2008-12-04 13:13:31 +00:00
Eelco Dolstra
b428adc267 * Strip off the `.nix' suffix from the attribute name for files in
~/.nix-defexpr,  otherwise the attribute cannot be selected with the
  `-A' option.  Useful if you want to stick a Nix expression directly
  in ~/.nix-defexpr.
2008-08-25 13:31:57 +00:00
Eelco Dolstra
3c92ea399d * Make nix-env --dry-run print the paths to be substituted correctly
again.  (After the previous substituter mechanism refactoring I
  didn't update the code that obtains the references of substitutable
  paths.)  This required some refactoring: the substituter programs
  are now kept running and receive/respond to info requests via
  stdin/stdout.
2008-08-02 12:54:35 +00:00
Eelco Dolstra
5af84139a8 * --max-freed: support values >= 4 GB. 2008-06-18 15:20:33 +00:00
Eelco Dolstra
a72709afd8 * Some refactoring: put the GC options / results in separate structs.
* The garbage collector now also prints the number of blocks freed.
2008-06-18 09:34:17 +00:00
Eelco Dolstra
b0e92f6d47 * Merged the no-bdb branch (-r10900:HEAD
https://svn.nixos.org/repos/nix/nix/branches/no-bdb).
2008-06-09 13:52:45 +00:00
Eelco Dolstra
bd955e15e1 * GCC 4.3.0 (Fedora 9) compatibility fixes. Reported by Gour and
Armijn Hemel.
2008-05-21 11:17:31 +00:00
Eelco Dolstra
329025253d * Use /tmp/nix-build-<drvpath>-<counter> instead of
/tmp/nix-<pid>-<counter> for temporary build directories.  This
  increases purity a bit: many packages store the temporary build path
  in their output, causing (generally unimportant) binary differences.
2008-03-27 13:45:17 +00:00
Eelco Dolstra
df303666bc * Use strsignal if available to give better error messages for
builders that fail due to a signal.
2007-12-14 14:49:35 +00:00
Eelco Dolstra
633518628f * nix-env -e: support uninstalling by path, so that one can say
$ nix-env -e $(which firefox)

  or

    $ nix-env -e /nix/store/nywzlygrkfcgz7dfmhm5xixlx1l0m60v-pan-0.132

* nix-env -i: if an argument contains a slash anywhere, treat it as a
  path and follow it through symlinks into the Nix store.  This allows
  things like

    $ nix-build -A firefox
    $ nix-env -i ./result

* nix-env -q/-i/-e: don't complain when the `*' selector doesn't match
  anything.  In particular, `nix-env -q \*' doesn't fail anymore on an
  empty profile.
2007-11-29 16:18:24 +00:00
Eelco Dolstra
dc6f373842 * Delete the chroot directory automatically.
* Removed some debug messages.
2007-10-27 16:06:38 +00:00
Eelco Dolstra
9397cd30c8 * Support for doing builds in a chroot under Linux. The builder is
executed in a chroot that contains just the Nix store, the temporary
  build directory, and a configurable set of additional directories
  (/dev and /proc by default).  This allows a bit more purity
  enforcement: hidden build-time dependencies on directories such as
  /usr or /nix/var/nix/profiles are no longer possible.  As an added
  benefit, accidental network downloads (cf. NIXPKGS-52) are prevented
  as well (because files such as /etc/resolv.conf are not available in
  the chroot).

  However the usefulness of chroots is diminished by the fact that
  many builders depend on /bin/sh, so you need /bin in the list of
  additional directories.  (And then on non-NixOS you need /lib as
  well...)
2007-10-27 00:46:59 +00:00
Eelco Dolstra
055608227f * nix-env: allow ~/.nix-defexpr to be a directory. If it is, then the
Nix expressions in that directory are combined into an attribute set
  {file1 = import file1; file2 = import file2; ...}, i.e. each Nix
  expression is an attribute with the file name as the attribute
  name.  Also recurses into directories.

* nix-env: removed the "--import" (-I) option which set the
  ~/.nix-defexpr symlink.

* nix-channel: don't use "nix-env --import", instead symlink
  ~/.nix-defexpr/channels.  So finally nix-channel --update doesn't
  override any default Nix expressions but combines with them.

  This means that you can have (say) a local Nixpkgs SVN tree and use
  it as a default for nix-env:

  $ ln -s .../path-to-nixpkgs-tree ~/.nix-defexpr/nixpkgs_svn

  and be subscribed to channels (including Nixpkgs) at the same time.
  (If there is any ambiguity, the -A flag can be used to
  disambiguate, e.g. "nix-env -i -A nixpkgs_svn.pan".)
2007-09-17 16:08:24 +00:00
Eelco Dolstra
9e975458b4 * Get rid of the substitutes database table (NIX-47). Instead, if we
need any info on substitutable paths, we just call the substituters
  (such as download-using-manifests.pl) directly.  This means that
  it's no longer necessary for nix-pull to register substitutes or for
  nix-channel to clear them, which makes those operations much faster
  (NIX-95).  Also, we don't have to worry about keeping nix-pull
  manifests (in /nix/var/nix/manifests) and the database in sync with
  each other.

  The downside is that there is some overhead in calling an external
  program to get the substitutes info.  For instance, "nix-env -qas"
  takes a bit longer.

  Abolishing the substitutes table also makes the logic in
  local-store.cc simpler, as we don't need to store info for invalid
  paths.  On the downside, you cannot do things like "nix-store -qR"
  on a substitutable but invalid path (but nobody did that anyway).

* Never catch interrupts (the Interrupted exception).
2007-08-12 00:29:28 +00:00
Eelco Dolstra
cbfac2fdcc * Set a terminate() handler to ensure that we leave the BDB
environment cleanly even when an exception is thrown from a
  destructor.  We still crash, but we don't take all other Nix
  processes with us.
2007-05-01 15:16:17 +00:00
Eelco Dolstra
8ab229ddf2 * Terminate build hooks and substitutes with a TERM signal, not a KILL
signal.  This is necessary because those processes may have joined
  the BDB environment, so they have to be given a chance to clean up.
  (NIX-85)
2007-03-19 12:48:45 +00:00
Eelco Dolstra
43c4d18c6a * nix-store --import': import an archive created by nix-store
--export' into the Nix store, and optionally check the cryptographic
  signatures against /nix/etc/nix/signing-key.pub.  (TODO: verify
  against a set of public keys.)
2007-02-21 15:45:32 +00:00
Eelco Dolstra
46e0919ced * `nix-store --export --sign': sign the Nix archive using the RSA key
in /nix/etc/nix/signing-key.sec
2007-02-21 14:31:42 +00:00
Eelco Dolstra
a82d80ddeb * Move setuidCleanup() to libutil. 2006-12-07 16:40:41 +00:00
Eelco Dolstra
6a07ff1ec0 * Change the ownership of store paths to the Nix account before
deleting them using the setuid helper.
2006-12-07 14:14:35 +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
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
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
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
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
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
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
8478cd260f * readFile: don't overflow the stack on large files. 2006-10-30 11:56:09 +00:00
Eelco Dolstra
4ad6fb7ea3 * Fix setuid builds. 2006-09-27 21:04:07 +00:00
Eelco Dolstra
bafc1690fc * Move setuid stuff to libutil.
* Install libexpr header files.
2006-09-04 22:55:28 +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
2132d9ddeb * Fix the ~ operator. 2006-08-29 15:29:38 +00:00
Eelco Dolstra
8a6080eb14 * Refactoring. 2006-08-26 16:48:01 +00:00
Eelco Dolstra
dcff8cdb76 * Weird issue on Cygwin with the include file order. 2006-08-04 16:01:26 +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
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
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
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
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
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
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
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
4578a490ce * Parse multi-valued options. 2005-09-22 15:43:22 +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
c6178f0b03 * Create missing log and temproots directories automatically (reported
by Rob).
2005-03-24 17:46:38 +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
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
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
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
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
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
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
92ee003dc9 * Fix broken format string. 2004-11-08 15:20:52 +00:00
Eelco Dolstra
dcc433de47 * Operation `--delete-generations' to delete generations of a
profile.  Arguments are either generation number, or `old' to delete
  all non-current generations.  Typical use:

  $ nix-env --delete-generations old
  $ nix-collect-garbage

* istringstream -> string2Int.
2004-09-10 13:32:08 +00:00
Eelco Dolstra
1eddee59f2 * The default verbosity level of all Nix commands is now lvlInfo.
* Builder output is written to standard error by default.
  * The option `-B' is gone.
  * The option `-Q' suppresses builder output.

The result of this is that most Nix invocations shouldn't need any
flags w.r.t. logging.
2004-08-18 12:19:06 +00:00
Eelco Dolstra
e3a50f7e25 * Creating a file nix-support/no-scan in the output path of a
derivation disables scanning for dependencies.  Use at your own
  risk.  This is a quick hack to speed up UML image generation (image
  are very big, say 1 GB).

  It would be better if the scanner were faster, and didn't read the
  whole file into memory.
2004-08-04 09:25:21 +00:00
Eelco Dolstra
b113edeab7 * A flag `--keep-going / -k' to keep building goals if one fails, as
much as possible.  (This is similar to GNU Make's `-k' flag.)

* Refactoring to implement this: previously we just bombed out when
  a build failed, but now we have to clean up.  In particular this
  means that goals must be freed quickly --- they shouldn't hang
  around until the worker exits.  So the worker now maintains weak
  pointers in order not to prevent garbage collection.

* Documented the `-k' and `-j' flags.
2004-06-25 15:36:09 +00:00
Eelco Dolstra
05a5362d63 * Some more diagnostics changes. 2004-06-22 17:04:10 +00:00
Eelco Dolstra
5e2cf44a4d * Put WEXITSTATUS stuff somewhere else. 2004-06-22 11:03:41 +00:00
Eelco Dolstra
c9fbd2dfd5 * Wrapper class around pids. 2004-06-22 09:51:44 +00:00
Eelco Dolstra
c4cb6ea2bc * Refactoring. 2004-06-22 08:50:25 +00:00
Eelco Dolstra
85ae781765 * Refactoring. 2004-06-20 13:37:51 +00:00
Eelco Dolstra
0b70231b9d * Refactoring. 2004-06-15 13:49:42 +00:00
Eelco Dolstra
8c0b42f857 * An quick and dirty hack to support distributed builds. 2004-05-12 09:35:51 +00:00
Eelco Dolstra
aea436503e * Ignore interrupt signals while handling an exception.
* Ignore EINTR in reads and writes.
2004-05-11 13:48:25 +00:00
Eelco Dolstra
d4779abc04 * Pass SYSTEM through config.h, and allow spaces. 2004-04-23 15:16:08 +00:00
Eelco Dolstra
f0f7a9f299 * Do not close a nesting level twice after close() has been
called explicitly on a Nest object.
2004-03-27 15:33:19 +00:00
Eelco Dolstra
7823db2137 * Some more nesting. 2004-03-22 21:42:28 +00:00
Eelco Dolstra
777e13b94b * Nix now has three different formats for the log information it
writes to stderr:
  
  - `pretty': the old nested style (default)
  - `escapes': uses escape codes to indicate nesting and message
    level; can be processed using `log2xml'
  - `flat': just plain text, no nesting

  These can be set using `--log-type TYPE' or the NIX_LOG_TYPE
  environment variable.
2004-03-22 20:53:49 +00:00
Eelco Dolstra
49bafe1faf * Use the profile pointed to by ~/.nix-profile if no --profile
argument is specified.
2004-02-06 10:59:06 +00:00
Eelco Dolstra
447089a5f6 * Catch SIGINT to terminate cleanly when the user tries to interrupt
Nix.  This is to prevent Berkeley DB from becoming wedged.

  Unfortunately it is not possible to throw C++ exceptions from a
  signal handler.  In fact, you can't do much of anything except
  change variables of type `volatile sig_atomic_t'.  So we set an
  interrupt flag in the signal handler and check it at various
  strategic locations in the code (by calling checkInterrupt()).
  Since this is unlikely to cover all cases (e.g., (semi-)infinite
  loops), sometimes SIGTERM may now be required to kill Nix.
2004-01-15 20:23:55 +00:00
Eelco Dolstra
4a373a3e9a * Implemented Eelco V.'s `nix-env -I' command to specify the default
path of the Nix expression to be used with the import, upgrade, and
  query commands.  For instance,

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

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

  $ nix-env -i sylpheed

  $ nix-env -u subversion

  There can be only one default at a time.

* If the path to a Nix expression is a symlink, follow the symlink
  prior to resolving relative path references in the expression.
2004-01-05 16:26:43 +00:00
Eelco Dolstra
40d9eb14df * Fix the garbage collector. 2003-11-22 15:58:34 +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
8798fae304 * Source tree refactoring. 2003-11-18 10:47:59 +00:00
Renamed from src/libnix/util.cc (Browse further)