Commit graph

1961 commits

Author SHA1 Message Date
Eelco Dolstra
b72c8d2e5b Include position info in function application
This allows error messages like:

  error: the anonymous function at `/etc/nixos/configuration.nix:1:1'
    called without required argument `foo', at
    `/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/modules.nix:77:59'
2014-04-04 18:59:29 +02:00
Danny Wilson
ae6b631dc4 Fix compile errors on Illumos 2014-04-03 17:39:57 +02:00
Eelco Dolstra
f0de86357c Tweak error message 2014-04-03 15:24:02 +02:00
Ludovic Courtès
e7720aa10a Make sure /dev/pts/ptmx is world-writable
While running Python 3’s test suite, we noticed that on some systems
/dev/pts/ptmx is created with permissions 0 (that’s the case with my
Nixpkgs-originating 3.0.43 kernel, but someone with a Debian-originating
3.10-3 reported not having this problem.)

There’s still the problem that people without
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y are screwed (as noted in build.cc),
but I don’t see how we could work around it.
2014-04-03 13:42:45 +02:00
Eelco Dolstra
ac6ceea764 Fix potential segfault
The newEnv variable was accessed (via the dynamicEnv) pointer after it
had gone out of scope.

Fixes #234.
2014-04-01 17:04:38 +02:00
Ricardo M. Correia
7ef7597f71 nix-env: Add support for --delete-generations 15d
It will delete all generations older than the specified number of days.
2014-03-30 00:54:16 +01:00
Eelco Dolstra
1c2550a2ae boost::shared_ptr -> std::shared_ptr 2014-03-30 00:49:23 +01:00
Eelco Dolstra
9becaa041f Drop pointless #include 2014-03-29 22:20:33 +01:00
Eelco Dolstra
acb8facbbc Fix potential segfault in waitForInput()
Since the addition of build-max-log-size, a call to
handleChildOutput() can result in cancellation of a goal.  This
invalidated the "j" iterator in the waitForInput() loop, even though
it was still used afterwards.  Likewise for the maxSilentTime
handling.

Probably fixes #231.  At least it gets rid of the valgrind warnings.
2014-03-29 22:14:11 +01:00
Eelco Dolstra
90dc50b07c restoreSIGPIPE(): Fill in sa_mask
Issue #231.
2014-03-29 20:20:14 +01:00
Eelco Dolstra
49009573bc Don't interpret strings as format strings
Ludo reported this error:

  unexpected Nix daemon error: boost::too_few_args: format-string refered to more arguments than were passed

coming from this line:

  printMsg(lvlError, run.program + ": " + string(err, 0, p));

The problem here is that the string ends up implicitly converted to a
Boost format() object, so % characters are treated specially.  I
always assumed (wrongly) that strings are converted to a format object
that outputs the string as-is.

Since this assumption appears in several places that may be hard to
grep for, I've added some C++ type hackery to ensures that the right
thing happens.  So you don't have to worry about % in statements like

  printMsg(lvlError, "foo: " + s);

or

  throw Error("foo: " + s);
2014-03-28 16:59:26 +01:00
Ludovic Courtès
24cb65efc3 Make /dev/kvm optional
The daemon now creates /dev deterministically (thanks!).  However, it
expects /dev/kvm to be present.

The patch below restricts that requirement (1) to Linux-based systems,
and (2) to systems where /dev/kvm already exists.

I’m not sure about the way to handle (2).  We could special-case
/dev/kvm and create it (instead of bind-mounting it) in the chroot, so
it’s always available; however, it wouldn’t help much since most likely,
if /dev/kvm missing, then KVM support is missing.
2014-03-21 17:27:19 +01:00
Eelco Dolstra
3fc056927c Fix tabs 2014-03-18 23:23:55 +01:00
Ludovic Courtès
51800e06de Allow recovery from isValidPath RPCs with an invalid path
Currently, clients cannot recover from an isValidPath RPC with an
invalid path parameter because the daemon closes the connection when
that happens.

More precisely:

  1. in performOp, wopIsValidPath case, ‘readStorePath’ raises an
     ‘Error’ exception;

  2. that exception is caught by the handler in ‘processConnection’;

  3. the handler determines errorAllowed == false, and thus exits after
     sending the message.

This last part is fixed by calling ‘startWork’ early on, as in the patch
below.

The same reasoning could be applied to all the RPCs that take one or
more store paths as inputs, but isValidPath is, by definition, likely to
be passed invalid paths in the first place, so it’s important for this
one to allow recovery.
2014-03-18 23:22:49 +01:00
Eelco Dolstra
f93e97517e Fix -j and other flags when using the daemon 2014-03-17 17:35:11 +01:00
Eelco Dolstra
fb8d8f5428 Remove unnecessary null pointer checks
Fixes #225.
2014-03-12 14:42:25 +01:00
Eelco Dolstra
25386e5edc Fix passing meta attribute to buildenv.nix
Since the meta attributes were not sorted, attribute lookup could
fail, leading to package priorities and active flags not working
correctly.

Broken since 0f24400d90.
2014-03-11 17:34:02 +01:00
Shea Levy
049a379ec6 The expr of AttrNames/DynamicAttrDefs is always an ExprConcatStrings 2014-03-10 10:14:50 +01:00
Shea Levy
908e9ce259 If a dynamic attribute name evaluates to null, remove it from the set 2014-03-10 10:14:50 +01:00
Eelco Dolstra
2caab81660 Revert "Make ifs and asserts tail-recursive"
This reverts commit 273322c773.
2014-03-05 16:18:13 +01:00
Eelco Dolstra
1017bd68ea Set up a private /dev/pts in the chroot 2014-02-27 23:35:23 +01:00
Eelco Dolstra
3fd01b171a Set up a minimal /dev in chroots
Not bind-mounting the /dev from the host also solves the problem with
/dev/shm being a symlink to something not in the chroot.
2014-02-27 23:17:53 +01:00
Eelco Dolstra
c9f6232304 Correctly detect infinite recursion in function application
If we're evaluating some application ‘v = f x’, we can't store ‘f’
temporarily in ‘v’, because if ‘f x’ refers to ‘v’, it will get ‘f’
rather than an infinite recursion error.

Unfortunately, this breaks the tail call optimisation introduced in
c897bac549.

Fixes #217.
2014-02-27 21:47:59 +01:00
Eelco Dolstra
29cde917fe Fix deadlock in SubstitutionGoal
We were relying on SubstitutionGoal's destructor releasing the lock,
but if a goal is a top-level goal, the destructor won't run in a
timely manner since its reference count won't drop to zero.  So
release it explicitly.

Fixes #178.
2014-02-27 13:34:13 +01:00
Eelco Dolstra
91f25f0510 And another one 2014-02-26 18:55:18 +01:00
Eelco Dolstra
432328cc55 Remove another unused function 2014-02-26 18:49:36 +01:00
Eelco Dolstra
509993e598 Remove unused function 2014-02-26 18:48:32 +01:00
Eelco Dolstra
6b9cd59a41 nix-store -r: Respect --add-root for non-derivations
Fixes #68.
Fixes #117.
2014-02-26 16:32:46 +01:00
Eelco Dolstra
f14ef84a51 Warn about missing -I paths
Fixes #121.  Note that we don't warn about missing $NIX_PATH entries
because it's intended that some may be missing (cf. the default
$NIX_PATH on NixOS, which includes paths like /etc/nixos/nixpkgs for
backward compatibility).
2014-02-26 15:21:56 +01:00
Eelco Dolstra
42eb4afd7a Simplify getting use-ssh-substituter from untrusted users 2014-02-26 13:58:46 +01:00
Eelco Dolstra
dcaea042fc Only start download-via-ssh if it's enabled 2014-02-26 13:41:03 +01:00
Shea Levy
df5de9dfd7 Add use-ssh-substituter setting.
It defaults to false and can be overridden by RemoteStore.

Untested currently, just quickly put this together
2014-02-26 13:32:47 +01:00
Eelco Dolstra
a897b58373 nix-instantiate: Allow --dry-run as a synonym for --readonly-mode
--dry-run is more consistent with nix-env and nix-store.
2014-02-19 16:46:33 +01:00
Eelco Dolstra
e1cf40fa95 nix-instantiate: Rename --eval-only to --eval, --parse-only to --parse 2014-02-19 16:34:24 +01:00
Eelco Dolstra
c31836008e nix-instantiate: Add a flag --expr / -E to read expressions from the command line
This is basically a shortcut for ‘echo 'expr...' | nix-instantiate -’.
Also supported by nix-build and nix-shell.
2014-02-19 16:30:19 +01:00
Shea Levy
a7e70518b8 lexer-tab.o and parser-tab.o require each other's headers 2014-02-18 17:31:30 +01:00
Eelco Dolstra
8129cf33d9 Slight simplification 2014-02-18 10:46:30 +01:00
Eelco Dolstra
1aa19b24b2 Add a flag ‘--check’ to verify build determinism
The flag ‘--check’ to ‘nix-store -r’ or ‘nix-build’ will cause Nix to
redo the build of a derivation whose output paths are already valid.
If the new output differs from the original output, an error is
printed.  This makes it easier to test if a build is deterministic.
(Obviously this cannot catch all sources of non-determinism, but it
catches the most common one, namely the current time.)

For example:

  $ nix-build '<nixpkgs>' -A patchelf
  ...
  $ nix-build '<nixpkgs>' -A patchelf --check
  error: derivation `/nix/store/1ipvxsdnbhl1rw6siz6x92s7sc8nwkkb-patchelf-0.6' may not be deterministic: hash mismatch in output `/nix/store/4pc1dmw5xkwmc6q3gdc9i5nbjl4dkjpp-patchelf-0.6.drv'

The --check build fails if not all outputs are valid.  Thus the first
call to nix-build is necessary to ensure that all outputs are valid.

The current outputs are left untouched: the new outputs are either put
in a chroot or diverted to a different location in the store using
hash rewriting.
2014-02-18 01:01:14 +01:00
Eelco Dolstra
b6def5b542 Make --repair work on Darwin
Mac OS X doesn't allow renaming a read-only directory.

http://hydra.nixos.org/build/9113895
2014-02-17 23:09:48 +01:00
Eelco Dolstra
dfbcb7c403 Refactoring 2014-02-17 23:04:52 +01:00
Eelco Dolstra
71adb090f0 When using a build hook, only copy missing paths 2014-02-17 22:58:21 +01:00
Eelco Dolstra
69fe6c58fa Move some code around
In particular, do replacing of valid paths during repair later.  This
prevents us from replacing a valid path after the build fails.
2014-02-17 22:25:15 +01:00
Eelco Dolstra
1da6ae4f99 nix-store --gc --max-freed: Support a unit specifier
E.g. "--max-freed 10G" means "free ten gigabytes".
2014-02-17 14:48:50 +01:00
Eelco Dolstra
00d30496ca Heuristically detect if a build may have failed due to a full disk
This will allow Hydra to detect that a build should not be marked as
"permanently failed", allowing it to be retried later.
2014-02-17 14:15:56 +01:00
Eelco Dolstra
a9d99ab55f download-via-ssh: Use readStorePath 2014-02-14 12:31:10 +01:00
Eelco Dolstra
4db572062c download-via-ssh: Show where we're downloading from 2014-02-14 12:20:12 +01:00
Eelco Dolstra
dba33d4018 Minor style fixes 2014-02-14 11:48:42 +01:00
Shea Levy
f67f52751f Indendation fix
Signed-off-by: Shea Levy <shea@shealevy.com>
2014-02-12 07:33:07 -05:00
Shea Levy
62eb9eb76d Remove relic of old code
Signed-off-by: Shea Levy <shea@shealevy.com>
2014-02-12 07:27:45 -05:00
Shea Levy
7438f0bc2b error messages start in lowercase
Signed-off-by: Shea Levy <shea@shealevy.com>
2014-02-12 07:26:35 -05:00