Commit graph

3679 commits

Author SHA1 Message Date
Eelco Dolstra 2e244fb68f
Merge pull request #2234 from symphorien/esrch2
libstore/gc.cc: ignore ESRCH when reading symlinks in /proc
2018-06-18 09:01:55 +02:00
Symphorien Gibol ef8122064b libstore/gc.cc: ignore ESRCH when reading symlinks in /proc
readlink is also affected by the problem fixed for regular files in
c567afe355df
2018-06-16 18:04:09 +02:00
Matthew Justin Bauer 6d09e4400c
Fix optimise-store.cc to skip more paths on macOS
I hate to make this such a large check but the lack of documentation means we really have no idea what's allowed. All of them reported so far have been within ".app/Contents" directories. That appears to be a safe starting point. However, I would not be surprised to also find more paths that are disallowed for instance in .framework or .bundle directories.

Fixes #2031
Fixes #2229
2018-06-14 12:34:55 -04:00
Eelco Dolstra 85530bcc0b
nix: Remove special handling of .drv files
This makes 'nix copy' and 'nix path-info' work on .drv store
paths. Removing special treatment of .drv files seems the most
future-proof approach given the possible removal of .drv files in the
future.

Note that 'nix build' will still build (rather than substitute) .drv
paths due to the unfortunate overloading in Store::buildPaths().
2018-06-13 18:04:22 +02:00
Eelco Dolstra 7902fccf6f
hashDerivationModulo(): Handle chroot stores
This makes 'nix copy --to /mnt /nix/store/bla.drv' work.
2018-06-13 18:00:54 +02:00
Eelco Dolstra 3c5d9f478d
std::random_shuffle -> std::shuffle
The former is removed in C++17.
2018-06-13 16:56:19 +02:00
Eelco Dolstra 0629601da1
Move EvalState from the stack to the heap
EvalState contains a few counters (e.g. nrValues) that increase
quickly enough that they end up being interpreted as pointers by the
garbage collector. Moving it to the heap makes them invisible to the
garbage collector.

This reduces the max RSS doing 100 evaluations of
nixos.tests.firefox.x86_64-linux.drvPath from 455 MiB to 292 MiB.

Note: ideally, allocations would be much further up in the 64-bit
address space to reduce the odds of an integer being misinterpreted as
a pointer. Maybe we can use some linker magic to move the .bss segment
to a higher address.
2018-06-12 17:49:55 +02:00
Eelco Dolstra c905d8b0a8
GC_malloc -> GC_MALLOC
This makes it possible to build with -DGC_DEBUG.
2018-06-12 17:49:55 +02:00
Eelco Dolstra 455d1f01d0
Don't scan for roots in dynamic libraries
This reduces the risk of object liveness misdetection. For example,
Glibc has an internal variable "mp_" that often points to a Boehm
object, keeping it alive unnecessarily. Since we don't store any
actual roots in global variables, we can just disable data segment
scanning.

With this, the max RSS doing 100 evaluations of
nixos.tests.firefox.x86_64-linux.drvPath went from 718 MiB to 455 MiB.
2018-06-12 17:49:55 +02:00
Eelco Dolstra 30964103dc
Add temporary stats 2018-06-12 17:49:55 +02:00
Eelco Dolstra 24c6806994
Cache parse trees
This prevents EvalState::resetFileCache() from parsing everything all
over again.
2018-06-12 17:49:55 +02:00
Eelco Dolstra 6ad0a2f749
Remove duplicate definition of allocBytes() 2018-06-12 17:49:51 +02:00
Yorick 72a78beb34
Fix #2162: use getaddrinfo instead of curl to preload NSS 2018-06-12 13:05:14 +02:00
Symphorien Gibol 8c567afe35 libstore/gc.cc: ignore ESRCH when reading /proc
If a process disappears between the time /proc/[pid]/maps is opened and
the time it is read, the read() syscall will return ESRCH. This should be ignored.
2018-06-11 16:29:47 +02:00
AmineChikhaoui 170165ee5a
use debug instead of printTalkative to avoid spamming hydra queue
runner logs.
2018-06-08 11:43:32 +01:00
Eelco Dolstra 4ac4f675df
Don't require --fallback to recover from disappeared binary cache NARs 2018-06-05 16:04:41 +02:00
Eelco Dolstra 691b7582c7
Handle HTTP 410 Gone errors 2018-06-05 16:03:32 +02:00
Eelco Dolstra ca06a9cea7
Improve binary cache fallback test 2018-06-05 15:26:12 +02:00
Eelco Dolstra a2ec7a3bfd
Further improve upload messages 2018-06-05 14:37:26 +02:00
Will Dietz 54b1c59643 download.cc: fix readCallback return type (int -> size_t)
I'm not sure if curl ever asks for enough data at once
for truncation to occur but better safe than sorry.
2018-06-01 10:59:26 -05:00
Eelco Dolstra 73357500ac
Improve binary cache upload messages
Don't say "download" when we mean "upload".
2018-06-01 14:14:22 +02:00
Peter Simons 93aa3bea2e
Merge pull request #767 from mogorman/garbage_collect_keep_last_few
Implement --delete-generations + flag for keeping last N number of gens
2018-05-31 10:00:21 +02:00
Eelco Dolstra 5d4a9d5677
Fix static assertion failure on 32-bit systems 2018-05-30 17:47:30 +02:00
Eelco Dolstra 3c2de9830d
RemoteStore::addToStore(): Ensure capacity is decreased on exceptions 2018-05-30 13:48:31 +02:00
Eelco Dolstra a4c1618876
Fix deadlock in RemoteStore::queryPathInfoUncached() 2018-05-30 13:46:14 +02:00
Eelco Dolstra 7d21863bb3
Make <nix/fetchurl.nix> run in constant memory
E.g.

  nix-build --store ~/my-nix/ -E 'import <nix/fetchurl.nix> { url = https://cache.nixos.org/nar/0nwi996rgq4b914qyx0mv2wq4k80hjac7xilikavagw7kxmn2iiv.nar.xz; sha256 = "0nwi996rgq4b914qyx0mv2wq4k80hjac7xilikavagw7kxmn2iiv"; }'

now runs in 17 MiB (was 70 MiB), while

  nix-build --store ~/my-nix/ -E 'import <nix/fetchurl.nix> { url = https://cache.nixos.org/nar/0nwi996rgq4b914qyx0mv2wq4k80hjac7xilikavagw7kxmn2iiv.nar.xz; sha256 = "0d2fxljdih3nc5dqx41hjzic3141ajil94m8kdbpryq569dpsbvb"; unpack = true; }'

runs in 17 MiB (was 346 MiB).
2018-05-30 13:42:51 +02:00
Eelco Dolstra 5a654fd7dd
getDownloader(): Simplify 2018-05-30 13:42:30 +02:00
Eelco Dolstra e87e4a60d6
Make HttpBinaryCacheStore::narFromPath() run in constant memory
This reduces memory consumption of

  nix copy --from https://cache.nixos.org --to ~/my-nix /nix/store/95cwv4q54dc6giaqv6q6p4r02ia2km35-blender-2.79

from 176 MiB to 82 MiB. (The remaining memory is probably due to xz
decompression overhead.)

Issue https://github.com/NixOS/nix/issues/1681.
Issue https://github.com/NixOS/nix/issues/1969.
2018-05-30 13:42:29 +02:00
Eelco Dolstra 08ec757726
Make LocalBinaryCacheStore::narFromPath() run in constant memory
This reduces memory consumption of

  nix copy --from file://... --to ~/my-nix /nix/store/95cwv4q54dc6giaqv6q6p4r02ia2km35-blender-2.79

from 514 MiB to 18 MiB for an uncompressed binary cache, and from 192
MiB to 53 MiB for a bzipped binary cache. It may also be faster
because fetching can happen concurrently with decompression/writing.

Continuation of 48662d151b.

Issue https://github.com/NixOS/nix/issues/1681.
2018-05-30 13:34:57 +02:00
Eelco Dolstra 81ea8bd5ce
Simplify the callback mechanism 2018-05-30 13:34:37 +02:00
Eelco Dolstra 1672bcd230
Move evaluator-specific settings out of libstore 2018-05-30 13:29:50 +02:00
Eelco Dolstra c1d445ecec
Move some Download-specific settings to download.cc 2018-05-30 13:29:50 +02:00
Eelco Dolstra 737ed88f35
Modularize config settings
Allow global config settings to be defined in multiple Config
classes. For example, this means that libutil can have settings and
evaluator settings can be moved out of libstore. The Config classes
are registered in a new GlobalConfig class to which config files
etc. are applied.

Relevant to https://github.com/NixOS/nix/issues/2009 in that it
removes the need for ad hoc handling of useCaseHack, which was the
underlying cause of that issue.
2018-05-30 13:28:01 +02:00
Eelco Dolstra e606cd412f
Fix assertion failure in storePathToHash()
Fixes https://github.com/NixOS/nix/issues/2015.
2018-05-30 13:27:19 +02:00
Eelco Dolstra 6185d25e52
Make 'nix copy --to daemon' run in constant memory (daemon side)
Continuation of 97002b684c. This makes
the daemon use constant memory. For example, it reduces the daemon's
maximum RSS on

  $ nix copy --from ~/my-nix --to daemon /nix/store/1n7x0yv8vq6zi90hfmian84vdhd04bgp-blender-2.79a

from 264 MiB to 7 MiB.

We now use a TunnelSource to prevent the connection from ending up in
an undefined state if an exception is thrown while the NAR is being
sent.

Issue https://github.com/NixOS/nix/issues/1681.
2018-05-30 13:26:48 +02:00
Eelco Dolstra 23d6bb583a
LocalStore::addToStore: Throw an exception if no hash is given 2018-05-30 13:25:40 +02:00
Eelco Dolstra 3cab639e21
Use extended SQLite error codes 2018-05-30 13:25:03 +02:00
Eelco Dolstra bd56b5fe3f
Merge pull request #2187 from bgamari/stoi-exceptions
json-to-value: Use strtol instead of strtoi
2018-05-28 14:54:49 +02:00
Ben Gamari 7f560b81ea json-to-value: Use strtol instead of strtoi
NixInt is long, so strtoi is too restrictive.
2018-05-26 18:43:46 -04:00
Will Dietz 93ae90de0f eval.cc: add message to static_assert, message can be omitted w/c++17 2018-05-26 14:04:41 -05:00
Will Dietz 14c464b6c8 nix-daemon: remove unused "pendingMsgs" variable 2018-05-26 13:09:55 -05:00
Will Dietz ca9c6cb95d libstore/download: remove unused function "getTime()" 2018-05-25 19:49:45 -05:00
Eelco Dolstra 743359bc8a
Merge pull request #2157 from volth/bitwise
add builtins: __bitAnd,  __bitOr,  __bitXor
2018-05-24 15:00:39 +02:00
Eelco Dolstra 4bb8741b98
Make Env self-describing
If the Env denotes a 'with', then values[0] may be an Expr* cast to a
Value*. For code that generically traverses Values/Envs, it's useful
to know this.
2018-05-22 16:02:32 +02:00
Eelco Dolstra 9fd7cf98db
Memoise checkSourcePath()
This prevents hydra-eval-jobs from statting the same files over and
over again.
2018-05-22 13:02:14 +02:00
Will Dietz b08923b4a0 serialise: fix buffer size used, hide method for internal use only
Fixes #2169.
2018-05-21 17:30:38 -05:00
volth 6cc28c0589
add `mod' and bitwise builtins: camel-case function names 2018-05-16 10:52:19 +00:00
volth f3c090f91c
add mod' and bitwise builtins: remove mod' and shifts 2018-05-16 06:57:11 +00:00
volth 49b7cf1813
add `mod' and bitwise builtins: remove infix functions 2018-05-16 06:55:24 +00:00
Eelco Dolstra 966407bcf1
Merge pull request #2145 from serokell/uncached-channel
make sure not to use cached channels for nix-channel --update
2018-05-15 14:57:18 +02:00