Commit graph

203 commits

Author SHA1 Message Date
Shea Levy 2c9cf50746 makeStoreWritable: Use statvfs instead of /proc/self/mountinfo to find out if /nix/store is a read-only bind mount
/nix/store could be a read-only bind mount even if it is / in its own filesystem, so checking the 4th field in mountinfo is insufficient.

Signed-off-by: Shea Levy <shea@shealevy.com>
2013-03-25 19:00:16 +01:00
Eelco Dolstra 0a4e90395c Urgggh
http://hydra.nixos.org/build/3661100
2013-01-02 23:52:15 +01:00
Eelco Dolstra f794465ca8 Disable use of vfork()
vfork() is just too weird.  For instance, in this build:

  http://hydra.nixos.org/build/3330487

the value fromHook.writeSide becomes corrupted in the parent, even
though the child only reads from it.  At -O0 the problem goes away.
Probably the child is overriding some spilled temporary variable.

If I get bored I may implement using posix_spawn() instead.
2012-11-15 19:35:18 +01:00
Eelco Dolstra ea89df2b76 Use vfork() instead of fork() if available
Hopefully this reduces the chance of hitting ‘unable to fork: Cannot
allocate memory’ errors.  vfork() is used for everything except
starting builders.
2012-11-09 18:00:33 +01:00
Mats Erik Andersson ecedd9c50c Out-of-tree building of perl modules. 2012-10-10 10:28:33 -04:00
Eelco Dolstra e35d6f78dc Rename nix-worker to nix-daemon 2012-10-03 17:59:23 -04:00
Eelco Dolstra 7586095504 Remove bin2c 2012-10-03 16:59:28 -04:00
Eelco Dolstra b674665765 Test whether GNU tar understands --warning=no-timestamp
http://hydra.nixos.org/build/3031618
2012-09-14 10:18:27 -04:00
Eelco Dolstra 8207359227 Whitespace 2012-08-27 11:28:48 -04:00
Eelco Dolstra 46f852cda0 Use a GNU tar flag to shut up warnings about implausibly old timestamp 2012-08-01 16:42:51 -04:00
Eelco Dolstra 8c79100839 Merge branch 'master' into no-manifests 2012-07-26 15:14:33 -04:00
Eelco Dolstra e98c029717 Handle platforms that don't support linking to a symlink
E.g. Darwin doesn't allow this.
2012-07-23 18:42:18 -04:00
Eelco Dolstra 6852289c46 Use lutimes() if available to canonicalise the timestamp of symlinks
Also use utimes() instead of utime() if lutimes() is not available.
2012-07-23 16:52:25 -04:00
Eelco Dolstra ae72be1b8b Add WWW::Curl as a dependency 2012-07-09 13:11:37 -04:00
Eelco Dolstra 4911a10a4e Use XZ compression in binary caches
XZ compresses significantly better than bzip2.  Here are the
compression ratios and execution times (using 4 cores in parallel) on
my /var/run/current-system (3.1 GiB):

  bzip2: total compressed size 849.56 MiB, 30.8% [2m08]
  xz -6: total compressed size 641.84 MiB, 23.4% [6m53]
  xz -7: total compressed size 621.82 MiB, 22.6% [7m19]
  xz -8: total compressed size 599.33 MiB, 21.8% [7m18]
  xz -9: total compressed size 588.18 MiB, 21.4% [7m40]

Note that compression takes much longer.  More importantly, however,
decompression is much faster:

  bzip2: 1m47.274s
  xz -6: 0m55.446s
  xz -7: 0m54.119s
  xz -8: 0m52.388s
  xz -9: 0m51.842s

The only downside to using -9 is that decompression takes a fair
amount (~65 MB) of memory.
2012-06-29 15:24:52 -04:00
Eelco Dolstra 4f7bab7db1 Support building with the Perl XS bindings disabled
Since the Perl bindings require shared libraries, this is required on
platforms such as Cygwin where we do a static build.
2012-05-10 19:03:23 -04:00
Eelco Dolstra d03a295192 Require SQLite >= 3.6.19
Nix needs SQLite's foreign key constraint feature, which was
introduced in 3.6.19.  Without it, the database won't be cleaned up
correctly when paths are deleted.  See
e.g. http://hydra.nixos.org/build/2494142.
2012-05-04 17:21:43 -04:00
Eelco Dolstra 969a14599d If "pv" is available at compile time, hard-code its path 2012-04-13 14:41:33 +02:00
Eelco Dolstra 4b23900ff1 Fix the optional dependency on OpenSSL
http://hydra.nixos.org/build/2306540
2012-03-19 01:06:13 +01:00
Eelco Dolstra b006a31d52 Drop the externals directory
Nix now requires SQLite and bzip2 to be pre-installed.  SQLite is
detected using pkg-config.  We required DBD::SQLite anyway, so
depending on SQLite is not a big problem.

The --with-bzip2, --with-openssl and --with-sqlite flags are gone.
2012-03-18 23:54:57 +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 f86fca9b70 * Figure out the extension of dynamic libraries; don't hard-code .so. 2012-01-11 15:41:42 +00:00
Eelco Dolstra a7366a764a * Add a -I flag to the Perl bindings to nix-build and some other
scripts.
* Include the version and architecture in the -I flag so that there is
  at least a chance that a Nix binary built for one Perl version will
  run on another version.
2012-01-05 20:33:46 +00:00
Eelco Dolstra 9d43a02382 * Let --disable-gc work. 2012-01-04 12:45:40 +00:00
Eelco Dolstra 39d45a6b09 * Add a test for nix-channel.
* Refactor the nix-channel unpacker a bit.
2012-01-03 01:51:38 +00:00
Eelco Dolstra 4de3e2a0db * Doh. 2011-11-21 13:22:34 +00:00
Eelco Dolstra 23e933b3b3 * Put back the "sys_name" variable which got removed somewhere. This
broke building on Cygwin and Solaris.
2011-11-21 12:23:48 +00:00
Eelco Dolstra a6abade8e8 * Escape the [ and ] characters in the sed call, otherwise autoconf
will eat them.
2011-11-21 12:18:26 +00:00
Eelco Dolstra 964399c079 * "sed" on FreeBSD doesn't know the "+" operator. 2011-11-20 19:23:50 +00:00
Eelco Dolstra b92f76374f * In the platform, canonicalise "amd64" to "x86_64". FreeBSD 8.2's
uname reports amd64.
* Drop the FreeBSD version number, e.g. "i686-freebsd" instead of
  "i686-freebsd8.2".
2011-11-18 17:25:40 +00:00
Ludovic Courtès 42164d6de4 configure: Change i*86 to i686 as has always been done. 2011-11-16 20:58:21 +00:00
Ludovic Courtès 45ec69cbdf configure: Rely on `AC_CANONICAL_HOST' to determine the Nix system name.
This should be more robust and also plays better with
cross-compilation---it uses the host name, instead of using the build
name.
2011-11-16 20:39:59 +00:00
Eelco Dolstra c0b706213d * Boldly make SQLite WAL mode the default again. Hopefully the
intermittent problems are gone by now.  WAL mode is preferrable
  because it does way fewer fsyncs.
2011-11-07 21:11:59 +00:00
Eelco Dolstra 6fcdbcac20 * Install NixManifest.pm, NixConfig.pm and GeneratePatches.pm under
the Nix:: namespace.
2011-10-10 21:11:08 +00:00
Eelco Dolstra 73fe6871c4 * Include the Nix Perl bindings in Nix itself. This will allow the
bindings to be used in Nix's own Perl scripts.

  The only downside is that Perl XS and Automake/libtool don't really
  like each other, so building is a bit tricky.
2011-10-10 18:12:40 +00:00
Eelco Dolstra d9a5959139 * Show the default for --with-store-dir (Nix/211). 2011-07-13 15:57:44 +00:00
Eelco Dolstra 34f4b91820 2011-07-04 14:44:53 +00:00
Eelco Dolstra 9c99aa2620 2011-06-27 09:01:09 +00:00
Eelco Dolstra e4d8148585 2011-06-27 08:04:54 +00:00
Eelco Dolstra 4891b21f34 * Use SQLite 3.7.6.2. 2011-05-03 16:17:24 +00:00
Eelco Dolstra 3cbf680f5d * configure: detect whether DBD::SQLite is present. If necessary the
location to DBI and DBD::SQLite can be passed with --with-dbi and
  --with-dbd-sqlite.
2011-04-11 10:13:53 +00:00
Eelco Dolstra 538b7caab0 * Don't allocate a big initial GC address space on machines with
little RAM.  Even if the memory isn't actually used, it can cause
  problems with the overcommit heuristics in the kernel.  So use a VM
  space of 25% of RAM, up to 384 MB.
2011-02-10 14:31:04 +00:00
Ludovic Courtès f1462c208b Use $BDW_GC_LIBS instead of a custom variable. 2011-02-09 21:23:13 +00:00
Eelco Dolstra 1876ab764f * A better fix. $boehmgc isn't set anywhere, we should use the flags
returned by pkg-config.
2011-02-09 14:13:09 +00:00
Eelco Dolstra c0340eec5a 2011-02-08 12:30:28 +00:00
Eelco Dolstra c931a7aec5 * Do a short sleep after SQLITE_BUSY. 2010-12-17 17:23:15 +00:00
Eelco Dolstra 4d57776813 * Use SQLite 3.7.4. 2010-12-10 11:45:56 +00:00
Eelco Dolstra fb9368b5a0 * Sync with the trunk. 2010-11-16 12:49:47 +00:00
Eelco Dolstra 3d71c8013e * Use pkgconfig to locate the Boehm GC (as suggested by Ludo), if
--enable-gc is given.
2010-10-29 14:00:47 +00:00
Eelco Dolstra 64c3325b0b * Make building against the Boehm GC a configure option. 2010-10-22 13:39:15 +00:00