Commit graph

1738 commits

Author SHA1 Message Date
Eelco Dolstra 6a888ec29a
copyStorePath(): Fill in missing narHash regardless of checkSigs
I don't remember what the reasoning was here, but security is provided
by the signatures, not by whether the hash is provided by the other
store.
2017-09-08 14:48:08 +02:00
Eelco Dolstra 88e6bb76de Communicate the structured log FD to builders
Since we may use a dedicated file descriptor in the future, this
allows us to change it. So builders can do

  if [[ -n $NIX_LOG_FD ]]; then
    echo "@nix { message... }" >&$NIX_LOG_FD
  fi
2017-09-08 11:27:10 +02:00
Eelco Dolstra 1277aab219
Fix abort when the GC thread gets an exception 2017-09-06 11:37:58 +02:00
Eelco Dolstra 0b606aad46
Add automatic garbage collection
Nix can now automatically run the garbage collector during builds or
while adding paths to the store. The option "min-free = <bytes>"
specifies that Nix should run the garbage collector whenever free
space in the Nix store drops below <bytes>. It will then delete
garbage until "max-free" bytes are available.

Garbage collection during builds is asynchronous; running builds are
not paused and new builds are not blocked. However, there also is a
synchronous GC run prior to the first build/substitution.

Currently, no old GC roots are deleted (as in "nix-collect-garbage
-d").
2017-09-05 20:43:42 +02:00
Eelco Dolstra b932ea58ec
GC: Don't delete own temproots file
Since file locks are per-process rather than per-file-descriptor, the
garbage collector would always acquire a lock on its own temproots
file and conclude that it's stale.
2017-09-05 20:39:57 +02:00
Eelco Dolstra 8215b75d36
Abort curl downloads if there is no progress for 5 minutes
Maybe this will fix the curl hangs on macOS. (We could also use
CURLOPT_TIMEOUT but that seems more of a sledgehammer.)
2017-09-01 16:51:26 +02:00
Eelco Dolstra bbdf08bc0f
Call queryMissing() prior to building
Without this, substitute info is fetched sequentially, which is
superslow. In the old UI (e.g. nix-build), we call printMissing(),
which calls queryMissing(), thereby preheating the binary cache
cache. But the new UI doesn't do that.
2017-08-31 16:05:07 +02:00
Eelco Dolstra fd73c1e20a
Add an activity for binary cache queries 2017-08-31 15:25:58 +02:00
Eelco Dolstra c2154d4c84
Rename a few configuration options
In particular, drop the "build-" and "gc-" prefixes which are
pointless. So now you can say

  nix build --no-sandbox

instead of

  nix build --no-build-use-sandbox
2017-08-31 14:28:25 +02:00
Eelco Dolstra 2cc345b95f
Give activities a verbosity level again
And print them (separately from the progress bar) given sufficient -v
flags.
2017-08-28 19:13:24 +02:00
Eelco Dolstra cfc8132391
Don't send progress messages to older clients 2017-08-28 18:54:23 +02:00
Eelco Dolstra fe34b91289
Tunnel progress messages from the daemon to the client
This makes the progress bar work for non-root users.
2017-08-28 18:49:42 +02:00
Eelco Dolstra 94a0548dc4
Simplify 2017-08-25 21:26:37 +02:00
Eelco Dolstra 0ac35b67b8
Allow derivations to update the build phase
So the progress bar can show

  [1/0/1 built, 0.0 MiB DL] building hello-2.10 (configuring): checking whether pread is declared without a macro... yes
2017-08-25 18:04:05 +02:00
Eelco Dolstra c137c0a5eb
Allow activities to be nested
In particular, this allows more relevant activities ("substituting X")
to supersede inferior ones ("downloading X").
2017-08-25 17:49:40 +02:00
Eelco Dolstra 0e9ddcc306
Restore activity metadata
This allows the progress bar to display "building perl-5.22.3" instead
of "building /nix/store/<hash>-perl-5.22.3.drv".
2017-08-25 15:58:35 +02:00
Eelco Dolstra 1f56235438
Clean up JSON construction 2017-08-21 12:18:46 +02:00
Eelco Dolstra 4af2611bd1
Allow builders to create activities
Actually, currently they can only create download activities. Thus,
downloads by builtins.fetchurl show up in the progress bar.
2017-08-21 12:18:46 +02:00
Eelco Dolstra b4ed97e3a3
nix optimise-store: Show how much space has been freed 2017-08-16 20:56:03 +02:00
Eelco Dolstra 23b8b7e096
nix optimise-store: Add
This replaces "nix-store --optimise". Main difference is that it has a
progress indicator.
2017-08-16 20:56:03 +02:00
Eelco Dolstra 40bffe0a43
Progress indicator: Cleanup 2017-08-16 20:56:03 +02:00
Eelco Dolstra dff12b38f9
Progress indicator: More improvements 2017-08-16 20:56:03 +02:00
Eelco Dolstra bf1f123b09
Progress indicator: Show number of active items 2017-08-16 20:56:03 +02:00
Eelco Dolstra 0e0dcf2c7e
Progress indicator: Unify "copying" and "substituting"
They're the same thing after all.

Example:

  $ nix build --store local?root=/tmp/nix nixpkgs.firefox-unwrapped
  [0/1 built, 49/98 copied, 16.3/92.8 MiB DL, 55.8/309.2 MiB copied] downloading 'https://cache.nixos.org/nar/0pl9li1jigcj2dany47hpmn0r3r48wc4nz48v5mqhh426lgz3bz6.nar.xz'
2017-08-16 20:56:03 +02:00
Eelco Dolstra c36467ad2e
Improve substitution progress indicator
E.g.

  $ nix build --store local?root=/tmp/nix nixpkgs.firefox-unwrapped
  [0/1 built, 1/97/98 fetched, 65.8/92.8 MiB DL, 203.2/309.2 MiB copied] downloading 'https://cache.nixos.org/nar/1czm9fk0svacy4h6a3fzkpafi4f7a9gml36kk8cq1igaghbspg3k.nar.xz'
2017-08-16 20:56:02 +02:00
Eelco Dolstra b29b6feaba
nix copy: Improve progress indicator
It now shows the amount of data copied:

  [8/1038 copied, 160.4/1590.9 MiB copied] copying path '...'
2017-08-16 20:56:02 +02:00
Eelco Dolstra c5e4404580
nix copy: Revive progress bar 2017-08-16 20:56:02 +02:00
Eelco Dolstra e4bd42f98f
Disallow SSH host names starting with a dash 2017-08-16 20:55:58 +02:00
Eelco Dolstra b6ee5e5bf0
Style fix 2017-08-10 13:51:07 +02:00
Eelco Dolstra af765a8eab
Use /proc/self/fd to efficiently close all FDs on Linux
Issue #1506.
2017-08-09 16:22:05 +02:00
Eelco Dolstra a2778988f2
Merge branch 'macOS' of https://github.com/davidak/nix 2017-07-31 10:31:51 +02:00
Jörg Thalheim 2fd8f8bb99 Replace Unicode quotes in user-facing strings by ASCII
Relevant RFC: NixOS/rfcs#4

$ ag -l | xargs sed -i -e "/\"/s/’/'/g;/\"/s/‘/'/g"
2017-07-30 12:32:45 +01:00
davidak fcb8d6a7a0 replace "OS X" with "macOS" 2017-07-30 12:28:50 +02:00
Eelco Dolstra fc3568e263
FD_SETSIZE check: BuildError -> Error
BuildError denotes a permanent build failure, which is not the case
here.
2017-07-20 13:33:13 +02:00
Dmitry Kalinkin d5e1bffd2a
Do not try to fill fd_set with fd>=FD_SETSIZE
This is UB and causes buffer overflow and crash on linux.
2017-07-18 17:51:50 -04:00
Eelco Dolstra bf6792c0df
Always use base-16 for hashed mirror lookups
In particular, don't use base-64, which we don't support. (We do have
base-32 redirects for hysterical reasons.)

Also, add a test for the hashed mirror feature.
2017-07-17 13:13:18 +02:00
Eelco Dolstra 49304bae81
Make the hashes mirrors used by builtins.fetchurl configurable
In particular, this allows it to be disabled in our tests.
2017-07-17 13:07:08 +02:00
Eelco Dolstra 4ec6eb1fdf
Fix accidental printError 2017-07-17 11:38:15 +02:00
Eelco Dolstra 766ad5db3b
nix path-info: Show download sizes for binary cache stores
E.g.

  $ nix path-info --json --store https://cache.nixos.org nixpkgs.thunderbird -S
  ...
      "downloadHash": "sha256:1jlixpzi225wwa0f4xdrwrqgi47ip1qpj9p06fyxxg07sfmyi4q0",
      "downloadSize": 43047620,
      "closureDownloadSize": 84745960
    }
  ]
2017-07-14 18:29:10 +02:00
Eelco Dolstra 3908d3929c
nix path-info: Don't barf on invalid paths
Now you get

  [
    {
      "path": "/nix/store/fzvliz4j5xzvnd0w5zgw2l0ksqh578yk-bla",
      "valid": false
    }
  ]
2017-07-14 18:29:10 +02:00
Eelco Dolstra 8e8caf7f3e fetchTarball: Prevent concurrent downloads of the same file
Fixes #849.
2017-07-11 23:21:24 +02:00
Eelco Dolstra d3713716b6 Merge pull request #1445 from matthewbauer/macos-skip-hardlink
Don’t hardlink disallowed paths in OS X.
2017-07-07 11:05:21 +02:00
Matthew Bauer 72e80c59b5 Don’t hardlink disallowed paths in OS X.
Fixes #1443
2017-07-06 19:30:19 -07:00
Eelco Dolstra a3dc1e65ab
Add X32 to the seccomp filter
Fixes #1432.
2017-07-04 19:00:51 +02:00
Eelco Dolstra 42c5774e78
Sort substituters by priority
Fixes #1438.
2017-07-04 16:34:53 +02:00
Eelco Dolstra b7203e853e
getDefaultSubstituters(): Simplify initialisation
As shlevy pointed out, static variables in C++11 have thread-safe
initialisation.
2017-07-04 16:26:48 +02:00
Eelco Dolstra 6cf23c3e8f
Add allow-new-privileges option
This allows builds to call setuid binaries. This was previously
possible until we started using seccomp. Turns out that seccomp by
default disallows processes from acquiring new privileges. Generally,
any use of setuid binaries (except those created by the builder
itself) is by definition impure, but some people were relying on this
ability for certain tests.

Example:

  $ nix build '(with import <nixpkgs> {}; runCommand "foo" {} "/run/wrappers/bin/ping -c 1 8.8.8.8; exit 1")' --no-allow-new-privileges
  builder for ‘/nix/store/j0nd8kv85hd6r4kxgnwzvr0k65ykf6fv-foo.drv’ failed with exit code 1; last 2 log lines:
    cannot raise the capability into the Ambient set
    : Operation not permitted

  $ nix build '(with import <nixpkgs> {}; runCommand "foo" {} "/run/wrappers/bin/ping -c 1 8.8.8.8; exit 1")' --allow-new-privileges
  builder for ‘/nix/store/j0nd8kv85hd6r4kxgnwzvr0k65ykf6fv-foo.drv’ failed with exit code 1; last 6 log lines:
    PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
    64 bytes from 8.8.8.8: icmp_seq=1 ttl=46 time=15.2 ms

Fixes #1429.
2017-07-04 15:48:25 +02:00
Eelco Dolstra c0015e87af
Support base-64 hashes
Also simplify the Hash API.

Fixes #1437.
2017-07-04 15:07:41 +02:00
Eelco Dolstra fcca702a96
Replace a few bool flags with enums
Functions like copyClosure() had 3 bool arguments, which creates a
severe risk of mixing up arguments.

Also, implement copyClosure() using copyPaths().
2017-07-03 11:38:08 +02:00
David McFarland 596b0e0a04 Call SetDllDirectory("") after sqlite3 init on cygwin
Cygwin sqlite3 is patched to call SetDllDirectory("/usr/bin") on init, which
affects the current process and is inherited by child processes.  It causes
DLLs to be loaded from /usr/bin/ before $PATH, which breaks all sorts of
things.  A typical failures would be header/lib version mismatches (e.g.
openssl when running checkPhase on openssh).  We'll just set it back to the
default value.

Note that this is a problem with the cygwin version of sqlite3 (currently
3.18.0).  nixpkgs doesn't have the problematic patch.
2017-06-20 10:59:13 -03:00
Eelco Dolstra a1355917ec
Disable use of virtual hosting in aws-sdk-cpp
Recently aws-sdk-cpp quietly switched to using S3 virtual host URIs
(https://github.com/aws/aws-sdk-cpp/commit/69d9c53882), i.e. it sends
requests to http://<bucket>.<region>.s3.amazonaws.com rather than
http://<region>.s3.amazonaws.com/<bucket>. However this interacts
badly with curl connection reuse. For example, if we do the following:

1) Check whether a bucket exists using GetBucketLocation.
2) If it doesn't, create it using CreateBucket.
3) Do operations on the bucket.

then 3) will fail for a minute or so with a NoSuchBucket exception,
presumably because the server being hit is a fallback for cases when
buckets don't exist.

Disabling the use of virtual hosts ensures that 3) succeeds
immediately. (I don't know what S3's consistency guarantees are for
bucket creation, but in practice buckets appear to be available
immediately.)
2017-06-19 18:51:33 +02:00
Eelco Dolstra 82a0d614cf
Support creating S3 caches in other regions than us-east-1 2017-06-19 18:51:33 +02:00
Eelco Dolstra b33621d425
Handle S3Errors::RESOURCE_NOT_FOUND from aws-sdk-cpp
This is returned by recent versions. Also handle NO_SUCH_KEY even
though the library doesn't actually return that at the moment.
2017-06-19 18:51:32 +02:00
Eelco Dolstra 1c969611ba
Suppress "will retry in N ms" for non-retriable errors
Newer versions of aws-sdk-cpp call CalculateDelayBeforeNextRetry()
even for non-retriable errors (like NoSuchKey) whih causes log spam in
hydra-queue-runner.
2017-06-19 18:51:32 +02:00
Eelco Dolstra 00aa7c6705
Show aws-sdk-cpp log messages 2017-06-19 18:51:32 +02:00
Eelco Dolstra 1888f7889b
macOS: Ugly hack to make the tests succeed
Sandboxes cannot be nested, so if Nix's build runs inside a sandbox,
it cannot use a sandbox itself. I don't see a clean way to detect
whether we're in a sandbox, so use a test-specific hack.

https://github.com/NixOS/nix/issues/1413
2017-06-19 14:26:05 +02:00
Eelco Dolstra b5bdfdef73
macOS: Remove flags
In particular, UF_IMMUTABLE (uchg) needs to be cleared to allow the
path to be garbage-collected or optimised.

See https://github.com/NixOS/nixpkgs/issues/25819.
+       the file from being garbage-collected.
2017-06-19 14:19:21 +02:00
Eelco Dolstra 38b7d55af1
Remove redundant debug line 2017-06-14 13:45:38 +02:00
Eelco Dolstra 88b291ffc4
canonicalisePathMetaData(): Ignore security.selinux attribute
Untested, hopefully fixes #1406.
2017-06-14 11:41:03 +02:00
Eelco Dolstra 847f19a5f7
Provide a builtin default for $NIX_SSL_CERT_FILE
This is mostly to ensure that when Nix is started on macOS via a
launchd service or sshd (for a remote build), it gets a certificate
bundle.
2017-06-12 16:44:43 +02:00
Eelco Dolstra 7f5b750b40
Don't run pre-build-hook if we don't have a derivation
This fixes a build failure on OS X when using Hydra or Nix 1.12's
build-remote (since they don't copy the derivation to the build
machine).
2017-06-12 16:07:34 +02:00
Eelco Dolstra 186571965d
Don't show flags from config settings in "nix --help" 2017-06-07 18:41:20 +02:00
Eelco Dolstra b8283773bd
nix: Make all options available as flags
Thus, instead of ‘--option <name> <value>’, you can write ‘--<name>
<value>’. So

  --option http-connections 100

becomes

  --http-connections 100

Apart from brevity, the difference is that it's not an error to set a
non-existent option via --option, but unrecognized arguments are
fatal.

Boolean options have special treatment: they're mapped to the
argument-less flags ‘--<name>’ and ‘--no-<name>’. E.g.

  --option auto-optimise-store false

becomes

  --no-auto-optimise-store
2017-06-07 16:17:17 +02:00
Eelco Dolstra c8cc50d46e
Disable the build user mechanism on all platforms except Linux and OS X 2017-06-06 18:52:15 +02:00
Eelco Dolstra 85e93d7b87
Always use the Darwin sandbox
Even with "build-use-sandbox = false", we now use sandboxing with a
permissive profile that allows everything except the creation of
setuid/setgid binaries.
2017-06-06 18:44:49 +02:00
Eelco Dolstra 52fec8dde8
Remove listxattr assertion
It appears that sometimes, listxattr() returns a different value for
the query case (i.e. when the buffer size is 0).
2017-05-31 20:43:47 +02:00
Eelco Dolstra c96e8cd097
OS X sandbox: Improve builtin sandbox profile
Also, add rules to allow fixed-output derivations to access the
network.

These rules are sufficient to build stdenvDarwin without any
__sandboxProfile magic.
2017-05-31 17:25:51 +02:00
Eelco Dolstra 44f3f8048f OS X sandbox: Don't use a deterministic $TMPDIR
This doesn't work because the OS X sandbox cannot bind-mount
path to a different location.
2017-05-31 14:09:00 +02:00
Eelco Dolstra c740c3ce50 OS X sandbox: Store .sb file in $TMPDIR rather than the Nix store
The filename used was not unique and owned by the build user, so
builds could fail with

error: while setting up the build environment: cannot unlink ‘/nix/store/99i210ihnsjacajaw8r33fmgjvzpg6nr-bison-3.0.4.drv.sb’: Permission denied
2017-05-31 14:09:00 +02:00
Eelco Dolstra acc889c821
Darwin sandbox: Use sandbox-defaults.sb
Issue #759.

Also, remove nix.conf from the sandbox since I don't really see a
legitimate reason for builders to access the Nix configuration.
2017-05-30 17:40:12 +02:00
Eelco Dolstra 53a1644187
Darwin sandbox: Disallow creating setuid/setgid binaries
Suggested by Daiderd Jordan.
2017-05-30 17:17:17 +02:00
Eelco Dolstra fe08d17934
Fix seccomp build failure on clang
Fixes

  src/libstore/build.cc:2321:45: error: non-constant-expression cannot be narrowed from type 'int' to 'scmp_datum_t' (aka 'unsigned long') in initializer list [-Wc++11-narrowing]
2017-05-30 14:37:24 +02:00
Eelco Dolstra d552d38758
Shut up some clang warnings 2017-05-30 14:35:50 +02:00
Eelco Dolstra 2ac99a32da
Add a seccomp rule to disallow setxattr() 2017-05-30 13:59:24 +02:00
Eelco Dolstra d798349ede
canonicalisePathMetaData(): Remove extended attributes / ACLs
EAs/ACLs are not part of the NAR canonicalisation. Worse, setting an
ACL allows a builder to create writable files in the Nix store. So get
rid of them.

Closes #185.
2017-05-30 13:47:41 +02:00
Eelco Dolstra ff6becafa8
Require seccomp only in multi-user setups 2017-05-30 12:37:04 +02:00
Eelco Dolstra cf93397d3f
Fix seccomp initialisation on i686-linux 2017-05-29 16:14:10 +02:00
Eelco Dolstra 6cc6c15a2d
Add a seccomp filter to prevent creating setuid/setgid binaries
This prevents builders from setting the S_ISUID or S_ISGID bits,
preventing users from using a nixbld* user to create a setuid/setgid
binary to interfere with subsequent builds under the same nixbld* uid.

This is based on aszlig's seccomp code
(47f587700d).

Reported by Linus Heckemann.
2017-05-29 16:14:10 +02:00
Eelco Dolstra 6e01ecd112
Fix nix-copy-closure test
Fixes

  client# error: size mismatch importing path ‘/nix/store/ywf5fihjlxwijm6ygh6s0a353b5yvq4d-libidn2-0.16’; expected 0, got 120264

This is mostly an artifact of the NixOS VM test environment, where the
Nix database doesn't contain hashes/sizes.

http://hydra.nixos.org/build/53537471
2017-05-29 16:08:56 +02:00
Eelco Dolstra 63145be2a5
Fix typo 2017-05-29 15:52:36 +02:00
Eelco Dolstra edbb105e98
Merge branch 'nar-accessor-tree' of https://github.com/bennofs/nix 2017-05-24 11:04:43 +02:00
Eelco Dolstra b01d62285c
Improve progress indicator 2017-05-16 16:09:57 +02:00
Benno Fünfstück a1f428b13b nar-accessor.cc: remove unused member NarIndexer::currentName 2017-05-15 19:41:59 +02:00
Benno Fünfstück 5ee06e612a nar-accessor: non-recursive NarMember::find
This avoids a possible stack overflow if directories are very deeply nested.
2017-05-15 19:34:18 +02:00
Eelco Dolstra e80257f122
Simplify fixed-output check 2017-05-15 18:50:54 +02:00
Eelco Dolstra a2d92bb20e
Add --with-sandbox-shell configure flag
And add a 116 KiB ash shell from busybox to the release build. This
helps to make sandbox builds work out of the box on non-NixOS systems
and with diverted stores.
2017-05-15 17:36:32 +02:00
Eelco Dolstra b30f5784d0
Linux sandbox: Don't barf on invalid paths
This is useful when we're using a diverted store (e.g. "--store
local?root=/tmp/nix") in conjunction with a statically-linked sh from
the host store (e.g. "sandbox-paths =/bin/sh=/nix/store/.../bin/busybox").
2017-05-15 17:36:32 +02:00
Benno Fünfstück 75a1d9849d nar-accessor: use tree, fixes readDirectory missing children
Previously, if a directory `foo` existed and a file `foo-` (where `-` is any character that is sorted before `/`), then  `readDirectory` would return an empty list.

To fix this, we now use a tree where we can just access the children of the node, and do not need to rely on sorting behavior to list the contents of a directory.
2017-05-15 10:23:16 +02:00
Eelco Dolstra 510bc1735b
Add an option for extending the user agent header
This is useful e.g. for distinguishing traffic to a binary cache
(e.g. certain machines can use a different tag in the user agent).
2017-05-11 15:10:22 +02:00
Eelco Dolstra 62d476c7ee
Fix typo 2017-05-11 14:02:03 +02:00
Eelco Dolstra ea65ae0f9c
Tweak error message 2017-05-11 13:59:47 +02:00
Eelco Dolstra 6f245bf24a
Change the meaning of info.ultimate
It now means "paths that were built locally". It no longer includes
paths that were added locally. For those we don't need info.ultimate,
since we have the content-addressability assertion (info.ca).
2017-05-11 13:31:23 +02:00
Eelco Dolstra 45d7b1a9e9
LocalStore::addToStore(): Check info.narSize
It allowed the client to specify bogus narSize values. In particular,
Downloader::downloadCached wasn't setting narSize at all.
2017-05-11 13:26:03 +02:00
Eelco Dolstra 7689181e4f
Minor cleanup 2017-05-08 15:56:52 +02:00
Eelco Dolstra 00b286275c
Linux sandbox: Fix compatibility with older kernels 2017-05-08 15:42:59 +02:00
Eelco Dolstra 0a97eb6bd7
Remove superfluous #ifdef 2017-05-08 11:27:20 +02:00
Eelco Dolstra bb50c89319
Make the location of the build directory in the sandbox configurable
This is mostly for use in the sandbox tests, since if the Nix store is
under /build, then we can't use /build as the build directory.
2017-05-05 17:45:22 +02:00
Eelco Dolstra eba840c8a1
Linux sandbox: Use /build instead of /tmp as $TMPDIR
There is a security issue when a build accidentally stores its $TMPDIR
in some critical place, such as an RPATH. If
TMPDIR=/tmp/nix-build-..., then any user on the system can recreate
that directory and inject libraries into the RPATH of programs
executed by other users. Since /build probably doesn't exist (or isn't
world-writable), this mitigates the issue.
2017-05-04 16:57:03 +02:00
Eelco Dolstra c5bea16611
LocalStoreAccessor: Fix handling of diverted stores 2017-05-02 15:46:09 +02:00
Eelco Dolstra 7f6837a0f6
Replace $NIX_REMOTE_SYSTEMS with an option "builder-files"
Also, to unify with hydra-queue-runner, allow it to be a list of
files.
2017-05-02 15:46:09 +02:00
Eelco Dolstra cd4d2705ec
build-remote: Fix fallback to other machines when connecting fails
Opening an SSHStore or LegacySSHStore does not actually establish a
connection, so the try/catch block here did nothing. Added a
Store::connect() method to test whether a connection can be
established.
2017-05-02 15:46:09 +02:00
Eelco Dolstra 1a68710d4d
Add an option for specifying remote builders
This is useful for one-off situations where you want to specify a
builder on the command line instead of having to mess with
nix.machines. E.g.

  $ nix-build -A hello --argstr system x86_64-darwin \
    --option builders 'root@macstadium1 x86_64-darwin'

will perform the specified build on "macstadium1".

It also removes the need for a separate nix.machines file since you
can specify builders in nix.conf directly. (In fact nix.machines is
yet another hack that predates the general nix.conf configuration
file, IIRC.)

Note: this option is supported by the daemon for trusted users. The
fact that this allows trusted users to specify paths to SSH keys to
which they don't normally have access is maybe a bit too much trust...
2017-05-02 15:42:43 +02:00
Eelco Dolstra ebc9f36a81
Factor out machines.conf parsing
This allows hydra-queue-runner to use it.
2017-05-02 13:17:37 +02:00
Eelco Dolstra 174b68a2a2
build-hook: If there are no machines defined, quit permanently 2017-05-02 12:16:29 +02:00
Eelco Dolstra feefcb3a98
build-remote: Ugly hackery to get build logs to work
The build hook mechanism expects build log output to go to file
descriptor 4, so do that.
2017-05-02 12:02:23 +02:00
Eelco Dolstra 3a5f04f48c
build-remote: Don't require signatures
This restores the old behaviour.
2017-05-01 20:03:25 +02:00
Eelco Dolstra 031d70e500
Support arbitrary store URIs in nix.machines
For backwards compatibility, if the URI is just a hostname, ssh://
(i.e. LegacySSHStore) is prepended automatically.

Also, all fields except the URI are now optional. For example, this is
a valid nix.machines file:

  local?root=/tmp/nix

This is useful for testing the remote build machinery since you don't
have to mess around with ssh.
2017-05-01 17:35:30 +02:00
Eelco Dolstra deac171925
Implement LegacySSHStore::buildDerivation()
This makes LegacySSHStore usable by build-remote and
hydra-queue-runner.
2017-05-01 17:30:16 +02:00
Eelco Dolstra 3f5b98e65a
Chomp log output from the build hook 2017-05-01 17:30:16 +02:00
Eelco Dolstra d7653dfc6d
Remove $NIX_BUILD_HOOK and $NIX_CURRENT_LOAD
This is to simplify remote build configuration. These environment
variables predate nix.conf.

The build hook now has a sensible default (namely build-remote).

The current load is kept in the Nix state directory now.
2017-05-01 17:30:16 +02:00
Eelco Dolstra ca9f589a93
build-remote: Don't copy the .drv closure
Since build-remote uses buildDerivation() now, we don't need to copy
the .drv file anymore. This greatly reduces the set of input paths
copied to the remote side (e.g. from 392 to 51 store paths for GNU
hello on x86_64-darwin).
2017-05-01 17:30:16 +02:00
Eelco Dolstra b986c7f8b1
Pass verbosity level to build hook 2017-05-01 14:43:14 +02:00
Eelco Dolstra 227a48f86f
Reduce severity of EMLINK warnings
Fixes #1357.
2017-05-01 14:36:56 +02:00
Eelco Dolstra 0dddcf867a
Add a dummy Store::buildPaths() method
This default implementation of buildPaths() does nothing if all
requested paths are already valid, and throws an "unsupported
operation" error otherwise. This fixes a regression introduced by
c30330df6f in binary cache and legacy
SSH stores.
2017-05-01 13:43:34 +02:00
Eelco Dolstra a1a5e63e14
Fix brainfart 2017-04-28 16:21:54 +02:00
Shea Levy 4bc00760f9 Add Store nesting to fix import-from-derivation within filterSource 2017-04-26 14:15:47 -04:00
Eelco Dolstra 1bb87c0487
Remove debug statement 2017-04-24 15:01:28 +02:00
Eelco Dolstra 749696e71c
Detect lsof
Also, don't use lsof on Linux since it's not needed.

Fixes #1328.
2017-04-20 19:11:45 +02:00
Eelco Dolstra efa4bdbfcd
Improve nix show-config --json
In particular, show descriptions. This could be used for manpage
generation etc.
2017-04-20 17:34:47 +02:00
Eelco Dolstra 4410e9d995
Setting: Remove "Tag" template argument 2017-04-20 16:52:53 +02:00
Eelco Dolstra f05d5f89ff
Read per-user settings from ~/.config/nix/nix.conf 2017-04-20 14:58:16 +02:00
Eelco Dolstra 562585e901
binary-caches-parallel-connections -> http-connections 2017-04-20 14:04:00 +02:00
Eelco Dolstra 76cb3c702c
Reimplement trusted-substituters (aka trusted-binary-caches) 2017-04-20 13:41:29 +02:00
Eelco Dolstra 9cc8047f44
Reimplement connect-timeout
Fixes #1339.
2017-04-19 14:54:52 +02:00
Eelco Dolstra f8a2e8a552
Shut up some warnings 2017-04-14 14:42:20 +02:00
Eelco Dolstra dd3714f6ef
Doh 2017-04-14 14:42:08 +02:00
Eelco Dolstra ba9ad29fdb
Convert Settings to the new config system
This makes all config options self-documenting.

Unknown or unparseable config settings and --option flags now cause a
warning.
2017-04-13 20:53:23 +02:00
Eelco Dolstra 1860070548
Merge branch 'rework-options' of https://github.com/copumpkin/nix 2017-04-13 16:15:51 +02:00
Eelco Dolstra 2040240e23
Add a Config class to simplify adding configuration settings
The typical use is to inherit Config and add Setting<T> members:

  class MyClass : private Config
  {
    Setting<int> foo{this, 123, "foo", "the number of foos to use"};
    Setting<std::string> bar{this, "blabla", "bar", "the name of the bar"};

    MyClass() : Config(readConfigFile("/etc/my-app.conf"))
    {
      std::cout << foo << "\n"; // will print 123 unless overriden
    }
  };

Currently, this is used by Store and its subclasses for store
parameters. You now get a warning if you specify a non-existant store
parameter in a store URI.
2017-04-13 16:03:31 +02:00
Eelco Dolstra 1fe1976e0d Merge pull request #1316 from copumpkin/nix-retries-default
Default to 5 download retries
2017-04-10 15:58:57 +02:00
Dan Peebles d1fdade755 Add CURLE_WRITE_ERROR as a transient error condition
We've observed it failing downloads in the wild and retrying the same URL
a few moments later seemed to fix it.
2017-04-10 09:28:44 -04:00
Dan Peebles e43e8be8e7 Default to 5 download retries
This should help certain downloaders that don't request anything special
for the number of retries, like nix-channel.
2017-04-10 09:22:24 -04:00
Eelco Dolstra 105f8ffc98
Minor cleanup
Also, possible fix for #1310 on 32-bit systems.
2017-04-10 11:27:33 +02:00
Eelco Dolstra 95295482ea
Allow "auto" as a store URI
Using the empty string is likely to be ambiguous in some contexts.
2017-04-10 11:27:29 +02:00
Dan Peebles 98283915f5 Retry downloads on transient SSL errors too 2017-04-06 18:18:43 +00:00
Eelco Dolstra ba20730b3f
Implement RemoteStore::queryMissing()
This provides a significant speedup, e.g. 64 s -> 12 s for

  nix-build --dry-run -I nixpkgs=channel:nixos-16.03 '<nixpkgs/nixos/tests/misc.nix>' -A test

on a cold local and CloudFront cache.

The alternative is to use lots of concurrent daemon connections but
that seems wasteful.
2017-04-06 18:40:19 +02:00
Eelco Dolstra 6b5e271163
Add a method to allow hydra-queue-runner to flush the path info cache 2017-04-06 15:22:37 +02:00
Eelco Dolstra 256940fc48
nix-daemon: Disable path info cache
This is useless because the client also caches path info, and can
cause problems for long-running clients like hydra-queue-runner
(i.e. it may return cached info about paths that have been
garbage-collected).
2017-04-06 14:30:31 +02:00
Eelco Dolstra 8decb07c31
Allow default sandbox paths to be overriden
E.g. you can now redirect /etc/resolv.conf to a different file.
2017-04-04 17:54:16 +02:00
Eelco Dolstra 488792a87d
Make /var/run/nscd/socket optional
Not every distribution uses nscd.
2017-04-04 17:40:50 +02:00
Eelco Dolstra 29d35805c6
Sandbox: Fix /dev/ptmx on recent kernels
This fixes "No such file or directory" when opening /dev/ptmx
(e.g. http://hydra.nixos.org/build/51094249).

The reason appears to be some changes to /dev/ptmx / /dev/pts handling
between Linux 4.4 and 4.9. See
https://patchwork.kernel.org/patch/7832531/.

The fix is to go back to mounting a proper /dev/pts instance inside
the sandbox. Happily, this now works inside user namespaces, even for
unprivileged users. So

  NIX_REMOTE=local?root=/tmp/nix nix-build \
    '<nixpkgs/nixos/tests/misc.nix>' -A test

works for non-root users.

The downside is that the fix breaks sandbox builds on older kernels
(probably pre-4.6), since mounting a devpts fails inside user
namespaces for some reason I've never been able to figure out. Builds
on those systems will fail with

  error: while setting up the build environment: mounting /dev/pts: Invalid argument

Ah well.
2017-03-31 18:20:19 +02:00
Shea Levy d299bd710a Merge branch 'builtins.exec' 2017-03-31 11:22:39 -04:00
Eelco Dolstra e1509adbbb
Retry curl error 16 2017-03-31 15:50:11 +02:00
Shea Levy 0bb8db257d Add exec primop behind allow-unsafe-native-code-during-evaluation.
Execute a given program with the (optional) given arguments as the
user running the evaluation, parsing stdout as an expression to be
evaluated.

There are many use cases for nix that would benefit from being able to
run arbitrary code during evaluation, including but not limited to:

* Automatic git fetching to get a sha256 from a git revision
* git rev-parse HEAD
* Automatic extraction of information from build specifications from
  other tools, particularly language-specific package managers like
  cabal or npm
* Secrets decryption (e.g. with nixops)
* Private repository fetching

Ideally, we would add this functionality in a more principled way to
nix, but in the mean time 'builtins.exec' can be used to get these
tasks done.

The primop is only available when the
'allow-unsafe-native-code-during-evaluation' nix option is true. That
flag also enables the 'importNative' primop, which is strictly more
powerful but less convenient (since it requires compiling a plugin
against the running version of nix).
2017-03-30 08:04:21 -04:00
Eelco Dolstra c60715e937
Ignore broken "Deriver: unknown-deriver" fields in .narinfo
These were generated by a legacy tool.
2017-03-28 13:08:13 +02:00
Eelco Dolstra 895a74a814
LocalFSStore::getBuildLog(): Handle corrupted logs 2017-03-21 19:23:35 +01:00
Eelco Dolstra e1e49c58e1
Only use cache.nixos.org when the store is /nix/store
This is consistent with the behaviour of the old
download-from-binary-cache substituter.
2017-03-21 17:59:18 +01:00
Eelco Dolstra ecbc3fedd3
Require signatures by default
This corresponds to the NixOS default.
2017-03-21 15:10:48 +01:00
Eelco Dolstra 4bb38591e5
Restore cache.nixos.org as the default substituter
Fixes #1283.
2017-03-21 15:06:46 +01:00
Eelco Dolstra f8b84a3b8c
Move istringstream_nocopy to a separate file 2017-03-21 14:43:03 +01:00
Eelco Dolstra 3229f85585
Honor $NIX_SSHOPTS again
NixOps needs this.
2017-03-21 14:35:50 +01:00
Eelco Dolstra 20df50d8e1
Merge branch 'darwin-s3-binary-cache-store' of https://github.com/shlevy/nix 2017-03-20 17:46:35 +01:00
Eelco Dolstra 287084d688
ssh:// -> ssh-ng://, legacy-ssh:// -> ssh:// 2017-03-16 14:19:32 +01:00
Eelco Dolstra c5b83d8913
copyPaths(): Use queryValidPaths() to reduce SSH latency 2017-03-16 13:50:01 +01:00
Eelco Dolstra 91d67692cf
copyPaths(): Don't query path info for a path the target already has
For example, this cuts "nix-copy-closure --from" on a NixOS system
closure from 15.9s to 0.5s.
2017-03-16 12:05:51 +01:00
Eelco Dolstra ea7fa88131
LegacySSHStore: Provide a faster implementation of computeFSClosure()
This avoids the latency of the standard implementation, which can make
a huge difference (e.g. 16.5s -> 0.5s on a NixOS system closure).
2017-03-16 11:44:52 +01:00
Eelco Dolstra 7a716ef2a5
Fix nix-copy-closure --to 2017-03-16 10:58:48 +01:00
Eelco Dolstra 0ec7f47b00
Remove "killing process <pid>" messages
They convey no useful information.
2017-03-16 10:52:28 +01:00
Eelco Dolstra 3f35612c04
More precise compression settings 2017-03-15 17:20:19 +01:00
Eelco Dolstra 25dff2b7db
runProgram(): Distinguish between empty input and no input
For example, if we call brotli with an empty input, it shouldn't read
from the caller's stdin.
2017-03-15 16:50:19 +01:00
Eelco Dolstra 042975ea8e
Compress NAR listings using the "text-compression" method
So if "text-compression=br", the .ls file in S3 will get a
Content-Encoding of "br". Brotli appears to compress better than xz
for this kind of file and is natively supported by browsers.
2017-03-15 16:50:19 +01:00
Eelco Dolstra 45c70382ac
S3BinaryCacheStore: Set Content-Type
This is necessary for serving log files to browsers.
2017-03-15 16:50:19 +01:00
Eelco Dolstra 8b1d65bebe
S3BinaryCacheStore: Support compression of narinfo and log files
You can now set the store parameter "text-compression=br" to compress
textual files in the binary cache (i.e. narinfo and logs) using
Brotli. This sets the Content-Encoding header; the extension of
compressed files is unchanged.

You can separately specify the compression of log files using
"log-compression=br". This is useful when you don't want to compress
narinfo files for backward compatibility.
2017-03-15 16:49:28 +01:00
Eelco Dolstra e8186085e0
Add support for brotli compression
Build logs on cache.nixos.org are compressed using Brotli (since this
allows them to be decompressed automatically by Chrome and Firefox),
so it's handy if "nix log" can decompress them.
2017-03-15 16:49:06 +01:00
Eelco Dolstra 532d73d5d8
BinaryCacheStore: Implement getBuildLog()
We assume that build logs are stored under log/<drv>, e.g.

  /nix/store/q7ab198v13p0f8x8wgnd75dva7d5mip6-friday-devil-0.1.1.1.drv

maps to

  https://cache.nixos.org/log/q7ab198v13p0f8x8wgnd75dva7d5mip6-friday-devil-0.1.1.1.drv
2017-03-15 16:48:29 +01:00
Eelco Dolstra 0afeb7f51e
Store: Add a method for getting build logs
This allows various Store implementations to provide different ways to
get build logs. For example, BinaryCacheStore can get the build logs
from the binary cache.

Also, remove the log-servers option since we can use substituters for
this.
2017-03-15 16:48:29 +01:00
Shea Levy 96443e94a1 Merge branch 'configurable-aws-region' 2017-03-12 10:01:11 -04:00
Shea Levy 93f863be96 Add option to disable import-from-derivation completely, even if the drv is already realized 2017-03-08 08:46:12 -05:00
Shea Levy 3cc18d3753 Properly set the caFile for aws-sdk-cpp s3 2017-03-06 14:30:35 -05:00
Shea Levy 4fc30922cf istringstream_nocopy: Implement in a standards-compliant way.
Fixes the problem mentioned in e6a61b8da7

See #1135
2017-03-06 13:03:02 -05:00
Shea Levy 5789eaa3f4 Add aws-region param to S3 store URLs 2017-03-03 16:12:17 -05:00
Eelco Dolstra d1158bb816
Cache connection failures 2017-03-03 19:36:01 +01:00
Eelco Dolstra 8490ee37a6
SSHMaster: Make thread-safe 2017-03-03 19:28:27 +01:00
Eelco Dolstra d3eb1cf3bb
build-remote: Don't use a SSH master
This is unnecessary because we make only one connection.
2017-03-03 19:23:20 +01:00
Eelco Dolstra 577ebeaefb
Improve SSH handling
* Unify SSH code in SSHStore and LegacySSHStore.

* Fix a race starting the SSH master. We now wait synchronously for
  the SSH master to finish starting. This prevents the SSH clients
  from starting their own connections.

* Don't use a master if max-connections == 1.

* Add a "max-connections" store parameter.

* Add a "compress" store parameter.
2017-03-03 19:05:50 +01:00
Eelco Dolstra 2f992692e2
Fix fatal "broken pipe" error when $NIX_BUILD_HOOK is missing 2017-03-03 15:40:06 +01:00
Eelco Dolstra fa125b9b28
TeeSink: Pre-reserve string space
When receiving a very large file, this can prevent the string from
having tobe copied, which temporarily doubles memory consumption.
2017-03-01 16:16:04 +01:00
Eelco Dolstra f61f67ddee
RemoteStore::addToStore(): Send NAR rather than string containing NAR
This allows the NAR to be streamed in the future (though we're not
doing that yet).
2017-03-01 16:07:15 +01:00
Eelco Dolstra 07a0b8ca67
Tweak message 2017-03-01 14:52:16 +01:00
Eelco Dolstra c4a40949d9
Handle importing NARs containing files greater than 4 GiB
Also templatize readInt() to work for various integer types.
2017-03-01 13:52:54 +01:00
Eelco Dolstra 0780805246
Fix building against older curl versions
http://hydra.nixos.org/build/49490928
2017-02-28 14:03:43 +01:00
Eelco Dolstra fd86dd93dd
Improve SQLite busy handling 2017-02-28 13:59:11 +01:00
Eelco Dolstra 34b12bad59
NarInfoDiskCache: Handle SQLite busy errors 2017-02-28 13:44:11 +01:00
Eelco Dolstra 80027144ae
In SQLite errors, include the database path
This is necessary because we have multiple SQLite databases (e.g. the
binary cache cache).
2017-02-28 13:20:12 +01:00
Eelco Dolstra 7251d048fa
Support auto-configuration of build-max-jobs
"build-max-jobs" and the "-j" option can now be set to "auto" to use
the number of CPUs in the system. (Unlike build-cores, it doesn't use
0 to imply auto-configuration, because a) magic values are a bad idea
in general; b) 0 is a legitimate value used to disable local
building.)

Fixes #1198.
2017-02-28 12:54:50 +01:00
Eelco Dolstra 3fab1f04a7
_SC_NPROCESSORS_ONLN -> std:🧵:hardware_concurrency() 2017-02-27 16:01:54 +01:00
Eelco Dolstra 3cb0387d3f
Retry downloads on HTTP/2 stream errors
Issue #1254.
2017-02-27 14:36:09 +01:00
Eelco Dolstra e76df9bd52
Register content-addressability assertion for fixed outputs 2017-02-24 16:39:53 +01:00
Eelco Dolstra 1c718f80d3
Verify content-addressability assertions at registration time 2017-02-24 16:38:14 +01:00
Dan Peebles e7cb2847ab Explicitly model all settings and fail on unrecognized ones
Previously, the Settings class allowed other code to query for string
properties, which led to a proliferation of code all over the place making
up new options without any sort of central registry of valid options. This
commit pulls all those options back into the central Settings class and
removes the public get() methods, to discourage future abuses like that.

Furthermore, because we know the full set of options ahead of time, we
now fail loudly if someone enters an unrecognized option, thus preventing
subtle typos. With some template fun, we could probably also dump the full
set of options (with documentation, defaults, etc.) to the command line,
but I'm not doing that yet here.
2017-02-22 20:19:25 -05:00
Eelco Dolstra f023f64f40
RemoteStore::addToStore(): Pass content-addressability assertion
... and use this in Downloader::downloadCached(). This fixes

  $ nix-build https://nixos.org/channels/nixos-16.09-small/nixexprs.tar.xz -A hello
  error: cannot import path ‘/nix/store/csfbp1s60dkgmk9f8g0zk0mwb7hzgabd-nixexprs.tar.xz’ because it lacks a valid signature
2017-02-22 16:58:00 +01:00
Eelco Dolstra 8b1b5f9a12
Handle CURLE_RECV_ERROR as a transient error
This fixes

  unable to download ‘https://cache.nixos.org/nar/077h8ji74y9b0qx7rjk71xd80vjqp6q5gy137r553jlvdlxdcdlk.nar.xz’: HTTP error 200 (curl error: Failure when receiving data from the peer)
2017-02-21 16:04:47 +01:00
Eelco Dolstra 99bbddedb1
Fix building without S3 support
http://hydra.nixos.org/build/49031196/nixlog/2/raw
2017-02-21 13:15:07 +01:00
Eelco Dolstra df66d346df
Log AWS retries 2017-02-21 11:50:31 +01:00
Eelco Dolstra 302386f775
Support netrc in <nix/fetchurl.nix>
This allows <nix/fetchurl.nix> to fetch private Git/Mercurial
repositories, e.g.

  import <nix/fetchurl.nix> {
    url = https://edolstra@bitbucket.org/edolstra/my-private-repo/get/80a14018daed.tar.bz2;
    sha256 = "1mgqzn7biqkq3hf2697b0jc4wabkqhmzq2srdymjfa6sb9zb6qs7";
  }

where /etc/nix/netrc contains:

  machine bitbucket.org
  login edolstra
  password blabla...

This works even when sandboxing is enabled.

To do: add unpacking support (i.e. fetchzip functionality).
2017-02-16 15:51:50 +01:00
Eelco Dolstra cde4b60919
Move netrcFile to Settings
Also get rid of Settings::processEnvironment(), it appears to be
useless.
2017-02-16 14:50:41 +01:00
Eelco Dolstra 40f0e3b366
Include "curl" in the User-Agent header
Some sites (e.g. BitBucket) give a helpful 401 error when trying to
download a private archive if the User-Agent contains "curl", but give
a redirect to a login page otherwise (so for instance
"nix-prefetch-url" will succeed but produce useless output).
2017-02-16 13:55:43 +01:00
Eelco Dolstra d1139ff36b Merge pull request #1215 from k0001/netrc-1
Add netrc-file support
2017-02-16 12:45:44 +01:00
Eelco Dolstra 9ff9c3f2f8
Add support for s3:// URIs
This adds support for s3:// URIs in all places where Nix allows URIs,
e.g. in builtins.fetchurl, builtins.fetchTarball, <nix/fetchurl.nix>
and NIX_PATH. It allows fetching resources from private S3 buckets,
using credentials obtained from the standard places (i.e. AWS_*
environment variables, ~/.aws/credentials and the EC2 metadata
server). This may not be super-useful in general, but since we already
depend on aws-sdk-cpp, it's a cheap feature to add.
2017-02-14 14:20:00 +01:00
Renzo Carbonara e2257d4eeb Documentation. 2017-02-09 18:16:09 +01:00
Tuomas Tynkkynen 2cd468874f Include config.h implicitly with '-include config.h' in CFLAGS
Because config.h can #define things like _FILE_OFFSET_BITS=64 and not
every compilation unit includes config.h, we currently compile half of
Nix with _FILE_OFFSET_BITS=64 and other half with _FILE_OFFSET_BITS
unset. This causes major havoc with the Settings class on e.g. 32-bit ARM,
where different compilation units disagree with the struct layout.

E.g.:

diff --git a/src/libstore/globals.cc b/src/libstore/globals.cc
@@ -166,6 +166,8 @@ void Settings::update()
     _get(useSubstitutes, "build-use-substitutes");
+    fprintf(stderr, "at Settings::update(): &useSubstitutes = %p\n", &nix::settings.useSubstitutes);
     _get(buildUsersGroup, "build-users-group");
diff --git a/src/libstore/remote-store.cc b/src/libstore/remote-store.cc
+++ b/src/libstore/remote-store.cc
@@ -138,6 +138,8 @@ void RemoteStore::initConnection(Connection & conn)
 void RemoteStore::setOptions(Connection & conn)
 {
+    fprintf(stderr, "at RemoteStore::setOptions(): &useSubstitutes = %p\n", &nix::settings.useSubstitutes);
     conn.to << wopSetOptions

Gave me:

at Settings::update(): &useSubstitutes = 0xb6e5c5cb
at RemoteStore::setOptions(): &useSubstitutes = 0xb6e5c5c7

That was not a fun one to debug!
2017-02-08 21:51:02 +02:00
Eelco Dolstra 6f4682ad36
Merge branch 'nix-copy-closure-c++' of https://github.com/shlevy/nix 2017-02-07 20:47:45 +01:00
Eelco Dolstra caa5793b4a
Add a LegacySSHStore that uses nix-store --serve
This is useful for nix-copy-closure.
2017-02-07 19:29:21 +01:00
Eelco Dolstra f38224e924
copyStorePath(): Don't require signatures for "trusted" stores
For example, SSH stores could be trusted.
2017-02-07 19:29:21 +01:00
Eelco Dolstra fa07558a06
Provide default implementations for a couple of Store methods 2017-02-07 19:29:21 +01:00
Eelco Dolstra 7a58ad0ef5
SSHStore: uri -> host 2017-02-07 19:20:15 +01:00
Eelco Dolstra 612aeb2df5
Cleanup 2017-02-07 19:16:25 +01:00
Renzo Carbonara e6e74f987f Add netrc-file support 2017-02-02 13:24:20 +01:00
Eelco Dolstra 1351b0df87
exportReferencesGraph: Only export in JSON format when in structured mode
This prevents breaking compatibility with builders that read
"closure.*", since they would accidentally pick up the new JSON files.
2017-02-02 12:20:28 +01:00
Eelco Dolstra 7a65b2470e
Restore default signal handling in child processes
In particular, this fixes Ctrl-C in nix-shell sessions.
2017-02-01 13:00:21 +01:00
Eelco Dolstra cb1951e746
Periodically purge binary-cache.sqlite 2017-01-27 15:19:33 +01:00
Eelco Dolstra 211bc7f0e6
Implement TTL for binary cache lookups 2017-01-27 13:17:08 +01:00
Eelco Dolstra f57a38b109
Remove unused NARExistence table 2017-01-27 12:57:49 +01:00
Eelco Dolstra c2b0d8749f
exportReferencesGraph: Export more complete info in JSON format
This writes info about every path in the closure in the same format as
‘nix path-info --json’. Thus it also includes NAR hashes and sizes.

Example:

  [
    {
      "path": "/nix/store/10h6li26i7g6z3mdpvra09yyf10mmzdr-hello-2.10",
      "narHash": "sha256:0ckdc4z20kkmpqdilx0wl6cricxv90lh85xpv2qljppcmz6vzcxl",
      "narSize": 197648,
      "references": [
        "/nix/store/10h6li26i7g6z3mdpvra09yyf10mmzdr-hello-2.10",
        "/nix/store/27binbdy296qvjycdgr1535v8872vz3z-glibc-2.24"
      ],
      "closureSize": 20939776
    },
    {
      "path": "/nix/store/27binbdy296qvjycdgr1535v8872vz3z-glibc-2.24",
      "narHash": "sha256:1nfn3m3p98y1c0kd0brp80dn9n5mycwgrk183j17rajya0h7gax3",
      "narSize": 20742128,
      "references": [
        "/nix/store/27binbdy296qvjycdgr1535v8872vz3z-glibc-2.24"
      ],
      "closureSize": 20742128
    }
  ]

Fixes #1134.
2017-01-26 20:41:08 +01:00
Eelco Dolstra 6de33a9c67
Add support for passing structured data to builders
Previously, all derivation attributes had to be coerced into strings
so that they could be passed via the environment. This is lossy
(e.g. lists get flattened, necessitating configureFlags
vs. configureFlagsArray, of which the latter cannot be specified as an
attribute), doesn't support attribute sets at all, and has size
limitations (necessitating hacks like passAsFile).

This patch adds a new mode for passing attributes to builders, namely
encoded as a JSON file ".attrs.json" in the current directory of the
builder. This mode is activated via the special attribute

  __structuredAttrs = true;

(The idea is that one day we can set this in stdenv.mkDerivation.)

For example,

  stdenv.mkDerivation {
    __structuredAttrs = true;
    name = "foo";
    buildInputs = [ pkgs.hello pkgs.cowsay ];
    doCheck = true;
    hardening.format = false;
  }

results in a ".attrs.json" file containing (sans the indentation):

  {
    "buildInputs": [],
    "builder": "/nix/store/ygl61ycpr2vjqrx775l1r2mw1g2rb754-bash-4.3-p48/bin/bash",
    "configureFlags": [
      "--with-foo",
      "--with-bar=1 2"
    ],
    "doCheck": true,
    "hardening": {
      "format": false
    },
    "name": "foo",
    "nativeBuildInputs": [
      "/nix/store/10h6li26i7g6z3mdpvra09yyf10mmzdr-hello-2.10",
      "/nix/store/4jnvjin0r6wp6cv1hdm5jbkx3vinlcvk-cowsay-3.03"
    ],
    "propagatedBuildInputs": [],
    "propagatedNativeBuildInputs": [],
    "stdenv": "/nix/store/f3hw3p8armnzy6xhd4h8s7anfjrs15n2-stdenv",
    "system": "x86_64-linux"
  }

"passAsFile" is ignored in this mode because it's not needed - large
strings are included directly in the JSON representation.

It is up to the builder to do something with the JSON
representation. For example, in bash-based builders, lists/attrsets of
string values could be mapped to bash (associative) arrays.
2017-01-26 20:40:33 +01:00
Eelco Dolstra b1f001538e
Fix assertion failure when a path is locked
Fixes:

  nix-store: src/libstore/build.cc:3649: void nix::Worker::run(const Goals&): Assertion `!awake.empty()' failed.
2017-01-26 20:40:33 +01:00
Eelco Dolstra 951357e5fb
UserLock: Fix multi-threaded access to a global variable 2017-01-26 20:40:33 +01:00
Eelco Dolstra a55f589720
openLockFile: Return an AutoCloseFD 2017-01-26 20:40:33 +01:00
Eelco Dolstra c0f2f4eeef
UserLock: Make more RAII-ish 2017-01-26 20:40:33 +01:00
Eelco Dolstra a529c740d2
Moving more code out of DerivationGoal::startBuilder() 2017-01-26 20:40:33 +01:00
Eelco Dolstra e8c43abd9a
On HTTP errors, also show the curl error
This is a hopefully temporary measure to diagnose the intermittent
"HTTP error 200" failures.
2017-01-26 20:40:32 +01:00
Eelco Dolstra 4425a5c547
Move exportReferencesGraph into a separate method
startBuilder() is getting rather obese.
2017-01-26 20:40:32 +01:00
Eelco Dolstra e3bf228c92
Enable verbose curl output
Closes #1182.
2017-01-24 13:57:01 +01:00
Shea Levy bfa41eb671 nix-copy-closure: Implement in C++.
Tests fail currently because the database is not given proper hashes in the VM
2017-01-20 09:47:58 -05:00
Eelco Dolstra 8af062f372 Merge pull request #981 from shlevy/build-remote-c++
build-remote: Implement in C++
2017-01-19 18:21:55 +01:00
Eelco Dolstra 21948deed9
Kill builds when we get EOF on the log FD
This closes a long-time bug that allowed builds to hang Nix
indefinitely (regardless of timeouts) simply by doing

  exec > /dev/null 2>&1; while true; do true; done

Now, on EOF, we just send SIGKILL to the child to make sure it's
really gone.
2017-01-19 17:16:14 +01:00
Eelco Dolstra 2579e32c2b
Use std::unique_ptr for HookInstance 2017-01-19 17:06:04 +01:00
Eelco Dolstra cc3b93c991
Handle SIGINT etc. via a sigwait() signal handler thread
This allows other threads to install callbacks that run in a regular,
non-signal context. In particular, we can use this to signal the
downloader thread to quit.

Closes #1183.
2017-01-17 18:21:02 +01:00
Eelco Dolstra 8079ab87a2 AutoCloseDir: Use std::unique_ptr 2017-01-16 22:39:27 +01:00
Eelco Dolstra 2b9d0a99cb AutoDeleteArray -> std::unique_ptr
Also, switch to C++14 for std::make_unique.
2017-01-16 22:24:49 +01:00
Eelco Dolstra 7adb986e35 Merge pull request #1139 from Mic92/master
Simplify remouting with MS_PRIVATE in sandbox build
2017-01-09 16:46:59 +01:00
Eelco Dolstra b6b142b4b1
Provide /var/run/nscd/socket in the sandbox
Otherwise sandbox builds can fail, e.g.

  $ NIX_REMOTE=local?root=/tmp/nix nix-build '<nixpkgs>' -A hello --option build-use-substitutes false
  ...
  downloading ‘http://ftpmirror.gnu.org/bash/bash-4.3-patches/bash43-047’...
  error: unable to download ‘http://ftpmirror.gnu.org/bash/bash-4.3-patches/bash43-047’: Couldn't resolve host name (6)
2017-01-02 14:46:37 +01:00
Eelco Dolstra d0a2db17d9
Call Aws::InitAPI
This is required now.
2016-12-22 17:39:49 +01:00
Eelco Dolstra 786ee585b8
Add comment 2016-12-22 17:39:49 +01:00
Eelco Dolstra 3a4bd320c2
Revert "Merge branch 'seccomp' of https://github.com/aszlig/nix"
This reverts commit 9f3f2e21ed, reversing
changes made to 47f587700d.
2016-12-19 11:52:57 +01:00
Eelco Dolstra 05862209de
Revert "Give root a valid home directory"
This reverts commit ec7d498b72.
2016-12-19 11:49:03 +01:00
Eelco Dolstra ec7d498b72
Give root a valid home directory
Some programs barf if the current user has a non-writable home
directory, e.g. http://hydra.nixos.org/build/44818144.
2016-12-15 15:56:08 +01:00
Eelco Dolstra 9f3f2e21ed
Merge branch 'seccomp' of https://github.com/aszlig/nix 2016-12-15 12:04:45 +01:00
Eelco Dolstra 47f587700d
Probably fix a segfault in PathLocks 2016-12-09 13:26:43 +01:00
Eelco Dolstra b30d1e7ada
Don't delete .check directories of running builds
We need to keep them around for diffoscope.
2016-12-08 21:38:58 +01:00
Eelco Dolstra 88ef77226e
Fix warning on 32-bit systems
http://hydra.nixos.org/build/44628517
2016-12-08 20:37:58 +01:00
Eelco Dolstra e629a17cc1
Fix build
http://hydra.nixos.org/build/44628517
2016-12-08 20:36:14 +01:00
Eelco Dolstra fe1162a805
S3BinaryCacheStore: Ensure it only builds on Linux 2016-12-08 15:35:46 +01:00
Eelco Dolstra e6a61b8da7
Fix S3BinaryCacheStore
It failed with

   AWS error uploading ‘6gaxphsyhg66mz0a00qghf9nqf7majs2.ls.xz’: Unable to parse ExceptionName: MissingContentLength Message: You must provide the Content-Length HTTP header.

possibly because the istringstream_nocopy introduced in
0d2ebb4373 doesn't supply the seek
method that the AWS library expects. So bring back the old version,
but only for S3BinaryCacheStore.
2016-12-08 15:31:27 +01:00
Eelco Dolstra 9a313469a4
Add a hook to run diffoscope when non-determinism is detected 2016-12-07 17:57:35 +01:00
Eelco Dolstra b07060688a
Keep track of the exact build start/stop times 2016-12-07 16:09:38 +01:00
Eelco Dolstra dadfddfa7c
Bail out early when non-determinism is detected 2016-12-07 15:31:18 +01:00
Eelco Dolstra 8bdf83f936
Add an option to make non-determinism non-fatal
That is, when build-repeat > 0, and the output of two rounds differ,
then print a warning rather than fail the build. This is primarily to
let Hydra check reproducibility of all packages.
2016-12-07 13:16:06 +01:00
Eelco Dolstra ceeedb58d2
Use a steady clock for timeouts
Fixes #1146.
2016-12-06 21:58:04 +01:00
Eelco Dolstra 7a3e7d0e61
nix-store --serve: Suppress log output on stderr when repeating a build 2016-12-06 17:43:39 +01:00