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220 commits

Author SHA1 Message Date
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
6ac237e242 * Show some progress. 2006-08-01 09:43:41 +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
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
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
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
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
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
c791e94aee * Removed a bunch of ATreverses. 2006-05-02 17:51:50 +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
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
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
b602d2dfdf * Wrong delete. Thanks valgrind. 2006-03-01 14:39:10 +00:00
Eelco Dolstra
6b8bb8d74a * Remove dead code. 2006-03-01 12:51:39 +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
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
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
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
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