Commit graph

701 commits

Author SHA1 Message Date
Eelco Dolstra
81628a6ccc Merge branch 'master' into make
Conflicts:
	src/libexpr/eval.cc
2014-01-21 15:30:01 +01:00
Eelco Dolstra
bf0ad8aabc nix-profile.sh: Add the Nixpkgs channel to $NIX_PATH 2014-01-15 14:34:49 +01:00
Eelco Dolstra
f1357059a4 nix-shell: Don't set NIX_INDENT_MAKE
It generally is not useful in interactive environments (and messes up
some non-ANSI-compliant terminals).
2014-01-13 13:46:44 +01:00
Eelco Dolstra
ea59f39326 nix-shell: Set $IN_NIX_SHELL before evaluating 2014-01-13 13:43:31 +01:00
Eelco Dolstra
0fdf4da0e9 Support cryptographically signed binary caches
NAR info files in binary caches can now have a cryptographic signature
that Nix will verify before using the corresponding NAR file.

To create a private/public key pair for signing and verifying a binary
cache, do:

  $ openssl genrsa -out ./cache-key.sec 2048
  $ openssl rsa -in ./cache-key.sec -pubout > ./cache-key.pub

You should also come up with a symbolic name for the key, such as
"cache.example.org-1".  This will be used by clients to look up the
public key.  (It's a good idea to number keys, in case you ever need
to revoke/replace one.)

To create a binary cache signed with the private key:

  $ nix-push --dest /path/to/binary-cache --key ./cache-key.sec --key-name cache.example.org-1

The public key (cache-key.pub) should be distributed to the clients.
They should have a nix.conf should contain something like:

  signed-binary-caches = *
  binary-cache-public-key-cache.example.org-1 = /path/to/cache-key.pub

If all works well, then if Nix fetches something from the signed
binary cache, you will see a message like:

  *** Downloading ‘http://cache.example.org/nar/7dppcj5sc1nda7l54rjc0g5l1hamj09j-subversion-1.7.11’ (signed by ‘cache.example.org-1’) to ‘/nix/store/7dppcj5sc1nda7l54rjc0g5l1hamj09j-subversion-1.7.11’...

On the other hand, if the signature is wrong, you get a message like

  NAR info file `http://cache.example.org/7dppcj5sc1nda7l54rjc0g5l1hamj09j.narinfo' has an invalid signature; ignoring

Signatures are implemented as a single line appended to the NAR info
file, which looks like this:

  Signature: 1;cache.example.org-1;HQ9Xzyanq9iV...muQ==

Thus the signature has 3 fields: a version (currently "1"), the ID of
key, and the base64-encoded signature of the SHA-256 hash of the
contents of the NAR info file up to but not including the Signature
line.

Issue #75.
2014-01-08 15:42:53 +01:00
Eelco Dolstra
405434e084 Revert "nix-shell: Set $IN_NIX_SHELL before evaluation"
This reverts commit 0c1198cf08.
2014-01-06 17:38:04 +01:00
Shea Levy
5ba5993470 nix-shell --pure: Don't clear IN_NIX_SHELL
Signed-off-by: Shea Levy <shea@shealevy.com>
2013-12-30 16:59:24 +01:00
Eelco Dolstra
b352fe2775 Revert "Scan /proc/<pid>/cmdline for GC roots"
This reverts commit 194e3374b8.
Checking the command line for GC roots means that

  $ nix-store --delete $path

will fail because $path is now a root because it's mentioned on the
command line.
2013-12-20 14:18:24 +01:00
Eelco Dolstra
194e3374b8 Scan /proc/<pid>/cmdline for GC roots 2013-12-20 13:31:31 +01:00
Eelco Dolstra
769f662165 nix-shell: Don't warn about the lack of a GC root 2013-12-20 12:19:10 +00:00
Eelco Dolstra
0c1198cf08 nix-shell: Set $IN_NIX_SHELL before evaluation
This has some hacky applications.
2013-12-20 13:11:41 +01:00
Eelco Dolstra
65a6452240 nix-shell: Handle --option correctly
Fixes #181.
2013-12-20 13:10:14 +01:00
Eelco Dolstra
7b0d8fb23d nix-shell --pure: Keep $TERM 2013-12-17 18:16:04 +01:00
Eelco Dolstra
f3cf0436b5 Install bsdiff and bspatch in $(libexecdir)/nix 2013-12-02 20:21:31 +00:00
Eelco Dolstra
0202ce6b94 Add support for ‘make installcheck’ 2013-11-25 18:47:03 +01:00
Eelco Dolstra
7ce0e05ad8 Rename Makefile.new -> Makefile 2013-11-25 15:25:13 +00:00
Eelco Dolstra
962551a071 Add a Makefile for the scripts directory 2013-11-25 15:17:16 +00:00
Eelco Dolstra
2d9bb56e55 Fix segfault on Darwin
Ever since SQLite in Nixpkgs was updated to 3.8.0.2, Nix has randomly
segfaulted on Darwin:

  http://hydra.nixos.org/build/6175515
  http://hydra.nixos.org/build/6611038

It turns out that this is because the binary cache substituter somehow
ends up loading two versions of SQLite: the one in Nixpkgs and the
other from /usr/lib/libsqlite3.dylib.  It's not exactly clear why the
latter is loaded, but it appears to be because WWW::Curl indirectly loads
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation,
which in turn seems to load /usr/lib/libsqlite3.dylib.  This leads to
a segfault when Perl exits:

  #0  0x00000001010375f4 in sqlite3_finalize ()
  #1  0x000000010125806e in sqlite_st_destroy ()
  #2  0x000000010124bc30 in XS_DBD__SQLite__st_DESTROY ()
  #3  0x00000001001c8155 in XS_DBI_dispatch ()
  ...
  #14 0x0000000100023224 in perl_destruct ()
  #15 0x0000000100000d6a in main ()
  ...

The workaround is to explicitly load DBD::SQLite before WWW::Curl.
2013-10-24 19:15:52 +02:00
Eelco Dolstra
4f4a14453a Don't set $PS1 in non-interactive shells
Shouldn't really matter, but you never know.
2013-10-18 14:51:25 +02:00
Shea Levy
4ea034a5c5 nix-shell: Play nicely with non-interactive shells
nix-shell with the --command flag might be used non-interactively, but
if bash starts non-interactively (i.e. with stdin or stderr not a
terminal), it won't source the script given in --rcfile. However, in
that case it *will* source the script found in $BASH_ENV, so we can use
that instead.

Also, don't source ~/.bashrc in a non-interactive shell (detectable by
checking the PS1 env var)

Signed-off-by: Shea Levy <shea@shealevy.com>
2013-10-18 14:34:46 +02:00
Eelco Dolstra
c1994fecf9 nix-shell: Fix bash completion
Nixpkgs's stdenv setup script sets the "nullglob" option, but doing so
breaks Bash completion on NixOS (when ‘programs.bash.enableCompletion’
is set) and on Ubuntu.  So clear that flag afterwards.  Of course,
this may break stdenv functions in subtle ways...
2013-10-14 15:28:43 +02:00
Eelco Dolstra
faaae44f2e build-remote.pl: Don't use substituters on the remote
It's kinda pointless to check substituters on the remote side, since
we just checked them locally.
2013-09-18 14:04:03 +02:00
Eelco Dolstra
5904262640 nix-shell: Support a .drv as argument
Fixes #161.
2013-09-06 14:58:05 +02:00
Eelco Dolstra
511455965e nix-shell: Don't disable Automake dependency tracking
Nixpkgs' stdenv disables dependency tracking by default.  That makes
sense for one-time builds, but in an interactive environment we expect
repeated "make" invocations to do the right thing.
2013-07-31 13:17:50 +02:00
Eelco Dolstra
15e5ac8039 nix-shell: Set $IN_NIX_SHELL
This allows scripts to distinguish between a real build and a Nix
shell.
2013-07-19 14:32:05 +02:00
Eelco Dolstra
48858ad5ca nix-shell: Set some environment variables also set by build.cc
Setting $NIX_STORE causes the purity checks in gcc/ld-wrapper to kick
in, so that's why we unset $NIX_ENFORCE_PURITY.
2013-07-19 14:06:58 +02:00
Eelco Dolstra
2bc5de8635 Rename ‘nix-build --run-env’ to ‘nix-shell’ 2013-07-19 12:02:44 +02:00
Eelco Dolstra
dc5f2e7da6 nix-build --run-env: Add a ‘--pure’ flag
This causes the environment to be (almost) cleared, thus giving a
shell that more closely resembled the actual Nix derivation.
2013-07-19 11:23:32 +02:00
Eelco Dolstra
a4921b8ceb Revert "build-remote.pl: Enforce timeouts locally"
This reverts commit 69b8f9980f.

The timeout should be enforced remotely.  Otherwise, if the garbage
collector is running either locally or remotely, if will block the
build or closure copying for some time.  If the garbage collector
takes too long, the build may time out, which is not what we want.
Also, on heavily loaded systems, copying large paths to and from the
remote machine can take a long time, also potentially resulting in a
timeout.
2013-07-18 12:52:29 +02:00
Eelco Dolstra
6fcc290619 build-remote.pl: Move "building ..." message to a better place 2013-07-11 17:16:45 +02:00
Eelco Dolstra
ed09d0c0a4 nix-build --run-env: Always use Bash
Fixes #113.
Fixes #131.
2013-07-11 14:40:29 +02:00
Eelco Dolstra
656390062a nix-build --run-env: Source $stdenv/setup in the interactive shell
This ensures that not just environment variables are set, but also
shell functions such as unpackPhase, configurePhase and so on.
2013-07-11 14:32:22 +02:00
Eelco Dolstra
5116214343 Add support for uncompressed NARs in binary caches
Issue NixOS/hydra#102.
2013-07-01 21:03:14 +02:00
Eelco Dolstra
7986711632 copy-from-other-stores.pl: Respect $NIX_BIN_DIR 2013-07-01 13:30:28 +02:00
Eelco Dolstra
1917d750a0 copy-from-other-stores.pl: Report downloaded size as 0 2013-07-01 13:29:59 +02:00
Eelco Dolstra
22144afa8d Don't keep "disabled" substituters running
For instance, it's pointless to keep copy-from-other-stores running if
there are no other stores, or download-using-manifests if there are no
manifests.  This also speeds things up because we don't send queries
to those substituters.
2013-06-20 11:55:15 +02:00
Eelco Dolstra
5c06e5297d download-from-binary-cache.pl: Respect $NIX_CONNECT_TIMEOUT 2013-06-07 16:25:12 +02:00
Eelco Dolstra
24a356bf71 Replace $NIX_DEBUG_SUBST with an option ‘debug-subst’
Thus passing ‘--option debug-subst 1’ allows daemon users to turn on
debug info and see what the substituter is doing.
2013-06-07 15:36:36 +02:00
Eelco Dolstra
24e063efdc download-from-binary-cache.pl: Show if we're waiting for a URL
Previously, if a binary cache is hanging/unreachable/slow,
download-from-binary-cache.pl would also hang without any indication
to the user.  Now, if fetching a URL takes more than 5 seconds, it
will print a message to that effect.
2013-06-07 15:33:44 +02:00
Eelco Dolstra
75e12b8e66 download-from-binary-cache.pl: Fix race condition
Fixes the error "DBD::SQLite::db do failed: column url is not unique".
2013-06-05 16:25:07 +02:00
Eelco Dolstra
f0576d6775 Update the default binary cache URL to cache.nixos.org 2013-06-05 13:36:43 +02:00
Eelco Dolstra
ff08306746 download-from-binary-cache.pl: Treat a 403 error as a 404
Amazon S3 returns HTTP status code 403 if a file doesn't exist and the
user has no permission to list the contents of the bucket.  So treat
it as 404 (meaning it's cached in the NARExistence table).
2013-06-04 15:20:37 +02:00
Eelco Dolstra
bc2e43f3c8 build-remote.pl: Remove meaningless signing when importing the output paths
The "$UID != 0" makes no sense: if the local side has write access to
the Nix store (which is always the case) then it doesn't matter if
we're root - we can import unsigned paths either way.
2013-05-29 18:18:59 +02:00
Eelco Dolstra
107505e13a build-remote.pl: Copy all outputs in one operation 2013-05-23 14:39:58 -04:00
Eelco Dolstra
72d8209548 build-remote.pl: Indicate if remote machine is refusing builds
Fixes #120.
2013-05-23 14:04:46 -04:00
Eelco Dolstra
a4cb62ac25 download-from-binary-cache.pl: Get rid of an uninitialized value warning
Reported by Pablo Costa.
2013-05-15 15:47:05 +02:00
Eelco Dolstra
3a0cc43ac8 build-remote.pl: Properly close the SSH connection between attempts 2013-05-10 02:38:50 +02:00
Eelco Dolstra
be0b9dda31 build-remote.pl: Pass /dev/null as SSH's stdin
Otherwise it will set the parent's stdin to non-blocking mode, causing
the subsequent read of the set of inputs/outputs to fail randomly.
That's insane.
2013-05-10 02:32:13 +02:00
Eelco Dolstra
78206f06ec build-remote.pl: Allow a machine to refuse a build
Before selecting a machine, build-remote.pl will try to run the
command "nix-builds-inhibited" on the machine.  If this command exists
and returns a 0 exit code, then the machine won't be used.  It's up to
the user to provide this command, but it would typically be a script
that checks whether there is enough disk space and whether the load is
not too high.
2013-05-10 01:09:46 +02:00
Eelco Dolstra
7a03cbf09d build-remote.pl: Create one process fewer on the remote side 2013-05-09 17:30:07 +02:00
Eelco Dolstra
69b8f9980f build-remote.pl: Enforce timeouts locally
Don't pass --timeout / --max-silent-time to the remote builder.
Instead, let the local Nix process terminate the build if it exceeds a
timeout.  The remote builder will be killed as a side-effect.  This
gives better error reporting (since the timeout message from the
remote side wasn't properly propagated) and handles non-Nix problems
like SSH hangs.
2013-05-09 17:17:17 +02:00
Eelco Dolstra
ea019e9a26 Add option ‘extra-binary-caches’
This allows providing additional binary caches, useful in scripts like
Hydra's build reproduction scripts, in particular because untrusted
caches are ignored.
2013-05-07 15:37:28 +02:00
Eelco Dolstra
c51b6a893c nix-copy-closure: Show a proper error message if no host name is given 2013-05-03 11:12:11 +02:00
Lluís Batlle i Rossell
e6c44d166a Fixing the pv position regarding compression
Problem noticed by niksnut.
2013-05-03 11:08:51 +02:00
Lluís Batlle i Rossell
7391533ea5 Fixing the pv reference; I didn't mean to change it 2013-05-03 11:08:51 +02:00
Lluís Batlle i Rossell
5cc2fc46ec Adding ETA support to the --show-progress in nix-copy-closure
Based on https://github.com/NixOS/nix/pull/6 from shlevy
2013-05-03 11:08:51 +02:00
Eelco Dolstra
4ddd077bfa find-runtime-roots.pl: Don't hardcode /nix/store 2013-04-26 12:15:54 +02:00
Eelco Dolstra
00f698eb8b find-runtime-roots.pl: Search process environments for roots
For instance, this prevents paths from being deleted that are in use
by a "nix-build --run-env" session.
2013-04-26 12:06:39 +02:00
Eelco Dolstra
938092a213 find-runtime-roots.pl: Use Nix::Utils::readFile 2013-04-26 11:44:19 +02:00
Eelco Dolstra
6955d41f2b nix-build: Respect --timeout 2013-04-23 17:16:01 +02:00
Eelco Dolstra
08d96ffad0 Fix --fallback with the binary cache substituter
Reported by Peter Simons.
2013-04-23 12:45:01 +02:00
Eelco Dolstra
c642441beb Test NAR info caching 2013-04-23 12:43:28 +02:00
Eelco Dolstra
bdd4646338 Revert "Prevent config.h from being clobbered"
This reverts commit 28bba8c44f.
2013-03-08 01:24:59 +01:00
Eelco Dolstra
28bba8c44f Prevent config.h from being clobbered 2013-03-07 23:55:55 +01:00
Eelco Dolstra
dadf7a5b46 build-remote: Use the --quiet flag
‘--option verbosity 0’ doesn't actually do anything.
2013-02-19 16:56:31 +01:00
Eelco Dolstra
96fbbbde55 build-remote.pl: Don't keep build logs on the build slave 2013-01-21 22:26:25 +01:00
Eelco Dolstra
0a4e90395c Urgggh
http://hydra.nixos.org/build/3661100
2013-01-02 23:52:15 +01:00
Eelco Dolstra
aebea2e489 Reinstate the http://nixos.org/binary-cache default for the binary-caches setting 2013-01-02 22:16:37 +01:00
Eelco Dolstra
68dcbb187e download-from-binary-cache: Use the channels of the calling user rather than root
This should make live easier for single-user (non-daemon)
installations.  Note that when the daemon is used, the "calling user"
is root so we're not using any untrusted caches.
2012-12-21 15:00:07 +01:00
Eelco Dolstra
8cc19ed089 Set a long SQLite timeout in the binary cache substituter 2012-12-06 11:43:34 +01:00
Eelco Dolstra
566afa1e9c Support xz compression of nixexprs.tar in channels 2012-12-05 11:02:44 +01:00
Eelco Dolstra
08964d7328 Undo accidental debug change 2012-11-26 17:57:14 +01:00
Eelco Dolstra
46a369ad95 Make "nix-build -A <derivation>.<output>" do the right thing
For example, given a derivation with outputs "out", "man" and "bin":

  $ nix-build -A pkg

produces ./result pointing to the "out" output;

  $ nix-build -A pkg.man

produces ./result-man pointing to the "man" output;

  $ nix-build -A pkg.all

produces ./result, ./result-man and ./result-bin;

  $ nix-build -A pkg.all -A pkg2

produces ./result, ./result-man, ./result-bin and ./result-2.
2012-11-26 15:39:10 +01:00
Eelco Dolstra
a3d6585c5a nix-copy-closure: Add flag ‘--use-substitutes’ 2012-11-23 16:20:16 +01:00
Eelco Dolstra
a9a8baaccb Use a shorter Nixpkgs channel URL 2012-11-09 13:33:35 +01:00
Eelco Dolstra
e28b683324 download-from-binary-cache: Try next cache if downloading a NAR fails 2012-11-06 17:55:53 +01:00
Eelco Dolstra
bbc107ef1e Process binary caches in order of priority
Binary caches can now specify a priority in their nix-cache-info file.
The binary cache substituter checks caches in order of priority.  This
is to ensure that fast, static caches like nixos.org/binary-cache are
processed before slow, dynamic caches like hydra.nixos.org.
2012-11-06 17:45:20 +01:00
Eelco Dolstra
82951e5582 nix-push: Handle pushing a symlink 2012-11-06 13:53:53 +01:00
Eelco Dolstra
620e92e880 Add an option ‘use-binary-caches’
This allows disabling the use of binary caches, e.g.

  $ nix-build ... --option use-binary-caches false

Note that

  $ nix-build ... --option binary-caches ''

does not disable all binary caches, since the caches defined by
channels will still be used.
2012-11-06 13:44:59 +01:00
Eelco Dolstra
df27db712d Fix "Not an ARRAY reference" error
It's a mystery why this error is not triggered in the build farm
(e.g. http://hydra.nixos.org/build/3265602).  Ah well.
2012-11-06 13:43:46 +01:00
Eelco Dolstra
a28b4445a4 nix-prefetch-url: Improve option handling 2012-10-23 18:04:11 +02:00
Eelco Dolstra
dde6486eab nix-push: Add a flag ‘--manifest-path’ to write the manifest to another directory 2012-10-18 10:36:16 -04:00
Eelco Dolstra
c8daeba303 nix-push: Add ‘--link’ flag
If ‘--link’ is given, nix-push will create hard links to the NAR files
in the store, rather than copying them.  This is faster and requires
less disk space.  However, it doesn't work if the store is on a
different file system.
2012-10-17 17:01:23 -04:00
Eelco Dolstra
167e36a5c3 nix-push: Only generate and copy a NAR if it doesn't already exist
This prevents unnecessary and slow rebuilds of NARs that already exist
in the binary cache.
2012-10-17 16:58:05 -04:00
Eelco Dolstra
600daf972f download-from-binary-cache: Remove duplicate entries in trustedURLs 2012-10-11 14:21:22 -04:00
Eelco Dolstra
a562d544d8 When ‘--help’ is given, just run ‘man’ to show the manual page
I.e. do what git does.  I'm too lazy to keep the builtin help text up
to date :-)

Also add ‘--help’ to various commands that lacked it
(e.g. nix-collect-garbage).
2012-10-03 16:40:09 -04:00
Eelco Dolstra
2e90a5a2a7 nix-build: Support ‘--repair’ flag 2012-10-03 15:14:02 -04:00
Eelco Dolstra
9958bd6992 Add operation ‘nix-store --repair-path’
This operation allows fixing corrupted or accidentally deleted store
paths by redownloading them using substituters, if available.

Since the corrupted path cannot be replaced atomically, there is a
very small time window (one system call) during which neither the old
(corrupted) nor the new (repaired) contents are available.  So
repairing should be used with some care on critical packages like
Glibc.
2012-10-02 14:08:59 -04:00
Eelco Dolstra
c1f91570b3 Style fix 2012-09-21 15:02:33 -04:00
Eelco Dolstra
20582e9ae3 Support xz compression in the download-using-manifests substituter 2012-09-19 17:33:42 -04:00
Eelco Dolstra
983220bcd4 nix-collect-garbage: Support --dry-run 2012-09-13 18:09:20 -04:00
Eelco Dolstra
aac14222f5 nix-profile.sh: Revert to single-user version
Commit 6a214f3e06 copied most of the Nix
shell initialisation code from NixOS to nix-profile.sh; however, that
code assumes a multi-user install and is Linux-specific (e.g. it calls
the "stat" command).  So go back to the simple single-user version.

Fixes #49.
2012-09-13 17:48:19 -04:00
Eelco Dolstra
47ae3ce2ca Put a time-to-live on negative binary cache lookups
Negative lookups are purged from the DB after a day, at most once per
day.  However, for non-"have" lookups (e.g. all except "nix-env
-qas"), negative lookups are ignored after one hour.  This is to
ensure that you don't have to wait a day for an operation like
"nix-env -i" to start using new binaries in the cache.

Should probably make this configurable.
2012-09-13 16:39:16 -04:00
Eelco Dolstra
e03a8a1c92 Doh 2012-09-13 14:58:56 -04:00
Eelco Dolstra
c845c0ccad nix-channel: Add option to force fetching of manifests 2012-09-13 12:11:40 -04:00
Eelco Dolstra
b14717ab90 Delete manifests in "nix-channel --remove" or when a binary cache is available 2012-09-13 11:35:46 -04:00
Eelco Dolstra
479e9172b3 Build hook: Pass the timeout to the remote builder
Note that this will only work if the client has a very recent Nix
version (post 15e1b2c223), otherwise the
--option flag will just be ignored.

Fixes #50.
2012-09-12 12:18:14 -04:00
Eelco Dolstra
6762424e24 Compatibility fix for WWW::Curl < 4.14
Older versions of WWW::Curl don't support scalar references for
CURLOPT_WRITEDATA directly.

http://hydra.nixos.org/build/3017188
2012-09-12 10:41:17 -04:00
Eelco Dolstra
a2785b7391 Support building a derivation if some outputs are already valid
This handles the chroot and build hook cases, which are easy.
Supporting the non-chroot-build case will require more work (hash
rewriting!).

Issue #21.
2012-09-11 16:59:59 -04:00
Eelco Dolstra
9e2fc6951c Disable the binary cache substituter by default for now 2012-08-27 14:20:14 -04:00
Eelco Dolstra
8b8fe6139e Drop dependency on List::MoreUtils 2012-08-27 11:28:34 -04:00
Eelco Dolstra
e94806d030 Merge branch 'master' into no-manifests 2012-08-27 11:09:07 -04:00
Eelco Dolstra
a9e6752bbd Include the output name in the GC root link
Output names are now appended to resulting GC symlinks, e.g. by
nix-build.  For backwards compatibility, if the output is named "out",
nothing is appended.  E.g. doing "nix-build -A foo" on a derivation
that produces outputs "out", "bin" and "dev" will produce symlinks
"./result", "./result-bin" and "./result-dev", respectively.
2012-08-24 16:58:11 -04:00
Eelco Dolstra
5170c5691a nix-channel: Use binary caches advertised by channels
Channels can now advertise a binary cache by creating a file
<channel-url>/binary-cache-url.  The channel unpacker puts these in
its "binary-caches" subdirectory.  Thus, the URLS of the binary caches
for the channels added by root appear in
/nix/var/nix/profiles/per-user/eelco/channels/binary-caches/*.  The
binary cache substituter reads these and adds them to the list of
binary caches.
2012-08-01 17:56:11 -04:00
Eelco Dolstra
8a25d787d7 download-from-binary-cache: Remove duplicate URLs 2012-08-01 11:33:15 -04:00
Eelco Dolstra
c770a2422a Report substituter errors to clients of the Nix daemon 2012-08-01 11:19:24 -04:00
Eelco Dolstra
4d1b64f118 Allow daemon users to override ‘binary-caches’
For security reasons, daemon users can only specify caches that appear
in the ‘binary-caches’ and ‘trusted-binary-caches’ options in
nix.conf.
2012-07-31 18:56:22 -04:00
Eelco Dolstra
9cd63d2244 Do some validation of URLs 2012-07-30 17:09:36 -04:00
Eelco Dolstra
9de6d10d11 Get rid of $NIX_BINARY_CACHES
You can use ‘--option binary-caches URLs’ instead.
2012-07-30 16:39:31 -04:00
Eelco Dolstra
ab42bf1dab nix-install-package: Support binary caches
The .nixpkg file format is extended to optionally include the URL of a
binary cache, which will be used in preference to the manifest URL
(which can be set to a non-existent value).
2012-07-30 16:11:02 -04:00
Eelco Dolstra
66a3ac6a56 Allow a binary cache to declare that it doesn't support "nix-env -qas"
Querying all substitutable paths via "nix-env -qas" is potentially
hard on a server, since it involves sending thousands of HEAD
requests.  So a binary cache must now have a meta-info file named
"nix-cache-info" that specifies whether the server wants this.  It
also specifies the store prefix so that we don't send useless queries
to a binary cache for a different store prefix.
2012-07-27 18:16:05 -04:00
Eelco Dolstra
73acb8b836 Let build.cc verify the expected hash of a substituter's output
Since SubstitutionGoal::finished() in build.cc computes the hash
anyway, we can prevent the inefficiency of computing the hash twice by
letting the substituter tell Nix about the expected hash, which can
then verify it.
2012-07-27 12:16:02 -04:00
Eelco Dolstra
3a8f841612 download-using-manifests: Don't use nix-prefetch-url
Instead call curl directly and pipe it into ‘nix-store --restore’.
This saves I/O and prevents creating garbage in the Nix store.
2012-07-27 10:47:36 -04:00
Eelco Dolstra
b4ea83249b Remove trailing whitespace / tabs 2012-07-27 09:59:18 -04:00
Eelco Dolstra
7f8e805c8e download-from-binary-cache: Only use the default cache for /nix/store 2012-07-27 09:57:42 -04:00
Eelco Dolstra
67c6f3eded nix-push: Support generating a manifest again
This makes all the tests succeed.  Woohoo!
2012-07-26 18:28:12 -04:00
Eelco Dolstra
e3ce54ccee nix-push: Remove the upload feature 2012-07-26 17:13:38 -04:00
Eelco Dolstra
7892ad15ab download-from-binary-cache: Support file://
The file:// URI schema requires checking for errors in a more general
way.  Also, don't cache file:// lookups.
2012-07-26 17:11:11 -04:00
Eelco Dolstra
8c79100839 Merge branch 'master' into no-manifests 2012-07-26 15:14:33 -04:00
Eelco Dolstra
2605f4f4e6 nix-profile.sh: Don't set NIX_REMOTE on single user installations
Commit 6a214f3e06 reused the NixOS
environment initialisation for nix-profile.sh, but this is
inappropriate on systems that don't have multi-user support enabled.
2012-07-25 17:06:09 -04:00
Eelco Dolstra
477b0fbeca Subscribe to the Nixpkgs rather than NixOS channel 2012-07-25 16:56:56 -04:00
Eelco Dolstra
ed59bf7a18 nix-build: Support the ‘-’ argument to build an expression from stdin 2012-07-23 17:11:12 -04:00
Eelco Dolstra
aa115e22df download-from-binary-cache: Print correct URL 2012-07-18 11:01:17 -04:00
Eelco Dolstra
a6f348599c Print some debug output 2012-07-17 16:19:40 -04:00
Eelco Dolstra
f2bdc87595 Update the other substituters 2012-07-11 18:52:09 -04:00
Eelco Dolstra
15c15da482 Add some missing --version switches 2012-07-11 18:07:41 -04:00
Eelco Dolstra
d287b62b64 Set the User-Agent header to "Nix/<version>" 2012-07-11 18:05:30 -04:00
Eelco Dolstra
b74d92755d download-from-binary-cache: Use HEAD requests if possible
In "nix-env -qas", we don't need the substitute info, we just need to
know if it exists.  This can be done using a HTTP HEAD request, which
saves bandwidth.

Note however that curl currently has a bug that prevents it from
reusing HTTP connections if HEAD requests return a 404:

https://sourceforge.net/tracker/?func=detail&aid=3542731&group_id=976&atid=100976

Without the patch attached to the issue, using HEAD is actually quite
a bit slower than GET.
2012-07-11 17:53:20 -04:00
Eelco Dolstra
5ee8944155 Cleanup 2012-07-11 10:13:16 -04:00
Eelco Dolstra
099125435f download-from-binary-cache: add nix.conf options 2012-07-09 10:57:28 -04:00
Eelco Dolstra
400e556b34 Cleanup 2012-07-08 18:39:07 -04:00
Eelco Dolstra
11800e6198 download-from-binary-cache: parallelise fetching of NAR info files
Getting substitute information using the binary cache substituter has
non-trivial latency overhead.  A package or NixOS system configuration
can have hundreds of dependencies, and in the worst case (when the
local info cache is empty) we have to do a separate HTTP request for
each of these.  If the ping time to the server is t, getting N info
files will take tN seconds; e.g., with a ping time of 0.1s to
nixos.org, sequentially downloading 1000 info files (a typical NixOS
config) will take at least 100 seconds.

To fix this problem, the binary cache substituter can now perform
requests in parallel.  This required changing the substituter
interface to support a function querySubstitutablePathInfos() that
queries multiple paths at the same time, and rewriting queryMissing()
to take advantage of parallelism.  (Due to local caching,
parallelising queryMissing() is sufficient for most use cases, since
it's almost always called before building a derivation and thus fills
the local info cache.)

For example, parallelism speeds up querying all 1056 paths in a
particular NixOS system configuration from 116s to 2.6s.  It works so
well because the eccentricity of the top-level derivation in the
dependency graph is only 9.  So we only need 10 round-trips (when
using an unlimited number of parallel connections) to get everything.

Currently we do a maximum of 150 parallel connections to the server.
Thus it's important that the binary cache server (e.g. nixos.org) has
a high connection limit.  Alternatively we could use HTTP pipelining,
but WWW::Curl doesn't support it and libcurl has a hard-coded limit of
5 requests per pipeline.
2012-07-06 19:08:20 -04:00
Eelco Dolstra
cd94665f38 download-from-binary-cache: use WWW::Curl
Using WWW::Curl rather than running an external curl process for every
NAR info file halves the time it takes to get info thanks to libcurl's
support for persistent HTTP connections.  (We save a roundtrip per
file.)  But the real gain will come from using parallel and/or
pipelined requests.
2012-07-06 00:30:40 -04:00
Eelco Dolstra
ae60643c15 download-from-binary-cache: do negative NAR info caching
I.e. if a NAR info file does *not* exist, we record it in the cache DB
so that we don't retry it later.
2012-07-03 18:54:46 -04:00
Eelco Dolstra
89380c03e9 download-from-binary-cache: in queries, preferred cached info 2012-07-03 18:35:39 -04:00
Eelco Dolstra
2a8e5c8b11 download-from-binary-cache: strip trailing / from URLs 2012-07-03 17:47:01 -04:00
Eelco Dolstra
d694c599e2 download-from-binary-cache: cache binary cache info in a SQLite DB 2012-07-03 17:29:33 -04:00
Eelco Dolstra
8319b1ab9f download-from-binary-cache: Verify NAR hashes 2012-07-02 18:53:04 -04:00
Eelco Dolstra
cf49472d60 nix-push: Always generate base-32 hashes 2012-07-02 18:05:57 -04:00
Eelco Dolstra
6ec7460af1 Binary caches: use a better key
Use the hash part of the store path as a key rather than a hash of the
store path.  This is enough to get the desired privacy property.
2012-07-02 12:42:58 -04:00
Eelco Dolstra
440adfbdd1 Add an environment variable $NIX_BINARY_CACHES specifying URLs of binary caches 2012-07-01 21:55:36 -04:00
Eelco Dolstra
f4190c38ba Allow both bzip2 and xz compression 2012-07-01 18:46:38 -04:00
Eelco Dolstra
000132cbd1 nix-push: Don't pollute the current directory with result symlink 2012-06-29 18:30:28 -04:00
Eelco Dolstra
37f7098464 First attempt at the manifest-less substituter 2012-06-29 18:28:52 -04:00
Eelco Dolstra
91b8814f0d Doh 2012-06-29 17:16:00 -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
49cd7387ad nix-push: create a manifest-less binary cache
Manifests are a huge pain, since users need to run nix-pull directly
or indirectly to obtain them.  They tend to be large and lag behind
the available binaries; also, the downloaded manifests in
/nix/var/nix/manifest need to be in sync with the Nixpkgs sources.  So
we want to get rid of them.

The idea of manifest-free operation works as follows.  Nix is
configured with a set of URIs of binary caches, e.g.

  http://nixos.org/binary-cache

Whenever Nix needs a store path X, it checks each binary cache for the
existence of a file <CACHE-URI>/<SHA-256 hash of X>.narinfo, e.g.

  http://nixos.org/binary-cache/bi1gh9...ia17.narinfo

The .narinfo file contains the necessary information about the store
path that was formerly kept in the manifest, i.e., (relative) URI of
the compressed NAR, references, size, hash, etc.  For example:

  StorePath: /nix/store/xqp4l88cr9bxv01jinkz861mnc9p7qfi-neon-0.29.6
  URL: 1bjxbg52l32wj8ww47sw9f4qz0r8n5vs71l93lcbgk2506v3cpfd.nar.bz2
  CompressedHash: sha256:1bjxbg52l32wj8ww47sw9f4qz0r8n5vs71l93lcbgk2506v3cpfd
  CompressedSize: 202542
  NarHash: sha256:1af26536781e6134ab84201b33408759fc59b36cc5530f57c0663f67b588e15f
  NarSize: 700440
  References: 043zrsanirjh8nbc5vqpjn93hhrf107f-bash-4.2-p24 cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13 ...
  Deriver: 4idz1bgi58h3pazxr3akrw4fsr6zrf3r-neon-0.29.6.drv
  System: x86_64-linux

Nix then knows that it needs to download

  http://nixos.org/binary-cache/1bjxbg52l32wj8ww47sw9f4qz0r8n5vs71l93lcbgk2506v3cpfd.nar.bz2

to substitute the store path.

Note that the store directory is omitted from the References and
Deriver fields to save space, and that the URL can be relative to the
binary cache prefix.

This patch just makes nix-push create binary caches in this format.
The next step is to make a substituter that supports them.
2012-06-28 17:19:32 -04:00
Michel Alexandre Salim
6a214f3e06 Update nix profile: - incorporate NixOS's configuration so that nix is usable by normal users - install as a data file, not a program file 2012-05-31 08:59:36 -04:00
Eelco Dolstra
6814b1dfa1 Generate binary tarballs for installing Nix
For several platforms we don't currently have "native" Nix packages
(e.g. Mac OS X and FreeBSD).  This provides the next best thing: a
tarball containing the closure of Nix, plus a simple script
"nix-finish-install" that initialises the Nix database, registers the
paths in the closure as valid, and runs "nix-env -i /path/to/nix" to
initialise the user profile.

The tarball must be unpacked in the root directory.  It creates
/nix/store/... and /usr/bin/nix-finish-install.  Typical installation
is as follows:

  $ cd /
  $ tar xvf /path/to/nix-1.1pre1234_abcdef-x86_64-linux.tar.bz2
  $ nix-finish-install
  (if necessary add ~/.nix-profile/etc/profile.d/nix.sh to the shell
  login scripts)

After this, /usr/bin/nix-finish-install can be deleted, if desired.

The downside to the binary tarball is that it's pretty big (~55 MiB
for x86_64-linux).
2012-05-22 18:36:54 -04:00
Eelco Dolstra
591aab7e21 Remove $FONTCONFIG_FILE hack from nix-profile.sh
It's no longer needed because Nixpkgs' fontconfig uses
/etc/fonts/fonts.conf as a default, just like other distributions.
2012-05-22 14:00:08 -04:00