Commit graph

61 commits

Author SHA1 Message Date
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
Shea Levy 96443e94a1 Merge branch 'configurable-aws-region' 2017-03-12 10:01:11 -04:00
Shea Levy 3cc18d3753 Properly set the caFile for aws-sdk-cpp s3 2017-03-06 14:30:35 -05:00
Shea Levy 5789eaa3f4 Add aws-region param to S3 store URLs 2017-03-03 16:12:17 -05:00
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 3cb0387d3f
Retry downloads on HTTP/2 stream errors
Issue #1254.
2017-02-27 14:36:09 +01:00
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 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
Renzo Carbonara e6e74f987f Add netrc-file support 2017-02-02 13:24:20 +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 e3bf228c92
Enable verbose curl output
Closes #1182.
2017-01-24 13:57:01 +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 215b70f51e
Revert "Get rid of unicode quotes (#1140)"
This reverts commit f78126bfd6. There
really is no need for such a massive change...
2016-11-26 00:38:01 +01:00
Guillaume Maudoux f78126bfd6 Get rid of unicode quotes (#1140) 2016-11-25 15:48:27 +01:00
Eelco Dolstra 542ae5c8f8 BinaryCacheStore: Optionally write a NAR listing
The store parameter "write-nar-listing=1" will cause BinaryCacheStore
to write a file ‘<store-hash>.ls.xz’ for each ‘<store-hash>.narinfo’
added to the binary cache. This file contains an XZ-compressed JSON
file describing the contents of the NAR, excluding the contents of
regular files.

E.g.

  {
    "version": 1,
    "root": {
      "type": "directory",
      "entries": {
        "lib": {
          "type": "directory",
          "entries": {
            "Mcrt1.o": {
              "type": "regular",
              "size": 1288
            },
            "Scrt1.o": {
              "type": "regular",
              "size": 3920
            },
          }
        }
      }
      ...
    }
  }

(The actual file has no indentation.)

This is intended to speed up the NixOS channels programs index
generator [1], since fetching gazillions of large NARs from
cache.nixos.org is currently a bottleneck for updating the regular
(non-small) channel.

[1] https://github.com/NixOS/nixos-channel-scripts/blob/master/generate-programs-index.cc
2016-10-21 16:50:28 +02:00
Eelco Dolstra 307cc8c33d Merge branch 'priorityqueue' of https://github.com/groxxda/nix 2016-10-19 16:37:04 +02:00
Eelco Dolstra e5346c54df Fix uninitialised variable 2016-10-19 15:02:38 +02:00
Alexander Ried efb938468c downloader: use priority_queue 2016-10-18 15:45:51 +02:00
Eelco Dolstra 2f9d60ed7f CURL_AT_LEAST_VERSION -> LIBCURL_VERSION_NUM
http://hydra.nixos.org/build/42025230
2016-10-14 14:44:15 +02:00
Eelco Dolstra 5e61b422c5 Fix HTTP/2 support
Commit 86e8c67efc broke it, because
CURL_* are not actually #defines.
2016-10-13 17:25:42 +02:00
Eelco Dolstra fb2dd32100 SSL_CERT_FILE -> NIX_SSL_CERT_FILE
This prevents collisions with the "native" OpenSSL, in particular on
OS X.

Fixes #921.
2016-10-13 17:09:10 +02:00
Eelco Dolstra c6a929986a Use std::random_device 2016-10-05 21:29:18 +02:00
Eelco Dolstra 86e8c67efc Fix build with older versions of libcurl 2016-10-04 14:43:23 +02:00
Eelco Dolstra c55bf085eb printMsg(lvlError, ...) -> printError(...) etc. 2016-09-21 16:54:53 +02:00
Eelco Dolstra beaefdf706 Tweak 2016-09-20 17:49:31 +02:00
Eelco Dolstra f12d56b27b Improve robustness 2016-09-20 17:25:44 +02:00
Eelco Dolstra 75989bdca7 Make computeFSClosure() single-threaded again
The fact that queryPathInfo() is synchronous meant that we needed a
thread for every concurrent binary cache lookup, even though they end
up being handled by the same download thread. Requiring hundreds of
threads is not a good idea. So now there is an asynchronous version of
queryPathInfo() that takes a callback function to process the
result. Similarly, enqueueDownload() now takes a callback rather than
returning a future.

Thus, a command like

  nix path-info --store https://cache.nixos.org/ -r /nix/store/slljrzwmpygy1daay14kjszsr9xix063-nixos-16.09beta231.dccf8c5

that returns 4941 paths now takes 1.87s using only 2 threads (the main
thread and the downloader thread). (This is with a prewarmed
CloudFront.)
2016-09-16 18:54:14 +02:00
Eelco Dolstra 6656ef7b5b Revive binary-caches-parallel-connections
It's a slight misnomer now because it actually limits *all* downloads,
not just binary cache lookups.

Also add a "enable-http2" option to allow disabling use of HTTP/2
(enabled by default).
2016-09-14 16:38:26 +02:00
Eelco Dolstra 90ad02bf62 Enable HTTP/2 support
The binary cache store can now use HTTP/2 to do lookups. This is much
more efficient than HTTP/1.1 due to multiplexing: we can issue many
requests in parallel over a single TCP connection. Thus it's no longer
necessary to use a bunch of concurrent TCP connections (25 by
default).

For example, downloading 802 .narinfo files from
https://cache.nixos.org/, using a single TCP connection, takes 11.8s
with HTTP/1.1, but only 0.61s with HTTP/2.

This did require a fairly substantial rewrite of the Downloader class
to use the curl multi interface, because otherwise curl wouldn't be
able to do multiplexing for us. As a bonus, we get connection reuse
even with HTTP/1.1. All downloads are now handled by a single worker
thread. Clients call Downloader::enqueueDownload() to tell the worker
thread to start the download, getting a std::future to the result.
2016-09-14 16:36:02 +02:00
Shea Levy dfe0938614 download.hh: Fix conflicts from nix-channel-c++ merge 2016-08-31 09:57:56 -04:00
Shea Levy 572aba284a Merge branch 'nix-channel-c++' 2016-08-31 09:49:24 -04:00
Eelco Dolstra 6631a6e1a1 Increase the sleep time between download retries 2016-08-30 15:48:24 +02:00
Shea Levy d52d391164 builtins.fetch{url,tarball}: Allow name attribute 2016-08-15 07:37:11 -04:00
Shea Levy 59124228b3 nix-channel: implement in c++ 2016-08-11 11:34:43 -04:00
Eelco Dolstra 66adbdfd97 HttpBinaryCacheStore: Retry on transient HTTP errors
This makes us more robust against 500 errors from CloudFront or S3
(assuming the 500 error isn't cached by CloudFront...).
2016-08-10 18:08:23 +02:00
Eelco Dolstra 9204ea7294 Show HTTP error codes 2016-08-10 18:05:35 +02:00
Eelco Dolstra ee22a91ab8 makeFixedOutputPath(): Drop superfluous HashType argument 2016-07-26 21:25:52 +02:00
Eelco Dolstra 06bbfb6004 builtins.{fetchurl,fetchTarball}: Support a sha256 attribute
Also, allow builtins.{fetchurl,fetchTarball} in restricted mode if a
hash is specified.
2016-07-26 21:16:52 +02:00
Eelco Dolstra e19c90fc6b Fix random failures caused by CurlDownloader modifying a shared string 2016-07-21 18:35:31 +02:00
Eelco Dolstra 38539b943a Add fetchgit builtin
The function builtins.fetchgit fetches Git repositories at evaluation
time, similar to builtins.fetchTarball. (Perhaps the name should be
changed, being confusing with respect to Nixpkgs's fetchgit function,
with works at build time.)

Example:

  (import (builtins.fetchgit git://github.com/NixOS/nixpkgs) {}).hello

or

  (import (builtins.fetchgit {
    url = git://github.com/NixOS/nixpkgs-channels;
    rev = "nixos-16.03";
  }) {}).hello

Note that the result does not contain a .git directory.
2016-04-29 20:47:36 +02:00
Eelco Dolstra 451ebf24ce Cache path info lookups in SQLite
This re-implements the binary cache database in C++, allowing it to be
used by other Store backends, in particular the S3 backend.
2016-04-20 14:12:38 +02:00
Eelco Dolstra d1b0909894 BinaryCacheStore::readFile(): Return a shared_ptr to a string
This allows readFile() to indicate that a file doesn't exist, and
might eliminate some large string copying.
2016-04-15 15:39:48 +02:00
Eelco Dolstra c045630522 Support channel:<channel-name> URIs
For convenience, you can now say

  $ nix-env -f channel:nixos-16.03 -iA hello

instead of

  $ nix-env -f https://nixos.org/channels/nixos-16.03/nixexprs.tar.xz -iA hello

Similarly,

  $ nix-shell -I channel:nixpkgs-unstable -p hello
  $ nix-build channel:nixos-15.09 -A hello

Abstracting over the NixOS/Nixpkgs channels location also allows us to
use a more efficient transport (e.g. Git) in the future.
2016-04-14 17:26:57 +02:00
Eelco Dolstra dc82160164 Fix "tar: This does not look like a tar archive" with fetchTarball / -I http://
The 304 Not Modified was not handled correctly, so the empty result
from the conditional request would overwrite the previous tarball.
2016-04-06 16:57:20 +02:00