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2012-07-18 download-from-binary-cache: Print correct URLEelco Dolstra1-2/+5
2012-07-18 Merge branch 'master' into no-manifestsEelco Dolstra16-40/+184
2012-07-17 Add function queryPathFromHashPart()Eelco Dolstra9-0/+67
To implement binary caches efficiently, Hydra needs to be able to map the hash part of a store path (e.g. "gbg...zr7") to the full store path (e.g. "/nix/store/gbg...kzr7-subversion-1.7.5"). (The binary cache mechanism uses hash parts as a key for looking up store paths to ensure privacy.) However, doing a search in the Nix store for /nix/store/<hash>* is expensive since it requires reading the entire directory. queryPathFromHashPart() prevents this by doing a cheap database lookup.
2012-07-17 queryPathInfo(): return hash in base-32 if desiredEelco Dolstra1-2/+2
Cherry-picked from the no-manifests branch.
2012-07-17 Print some debug outputEelco Dolstra1-8/+15
2012-07-17 Return an exit code of 100 for cached failed buildsEelco Dolstra1-0/+1
Exit code 100 should be returned for all permanent failures. This includes cached failures. Fixes #34.
2012-07-17 Remove dead codeEelco Dolstra2-13/+0
2012-07-17 Manual: Don't claim we support CygwinEelco Dolstra1-1/+1
2012-07-17 Update Nix 1.1 release notesEelco Dolstra2-8/+70
2012-07-17 Allow disabling log compressionEelco Dolstra2-12/+35
2012-07-12 builtins.storePath: resolve symlinksEelco Dolstra1-1/+5
Needed for Charon/Hydra interaction.
2012-07-11 Merge branch 'master' of github.com:NixOS/nix into no-manifestsEelco Dolstra12-206/+88
2012-07-11 Update release notesEelco Dolstra1-0/+5
2012-07-11 Update the other substitutersEelco Dolstra3-71/+72
2012-07-11 Add some missing --version switchesEelco Dolstra2-0/+10
2012-07-11 Set the User-Agent header to "Nix/<version>"Eelco Dolstra2-0/+3
2012-07-11 download-from-binary-cache: Use HEAD requests if possibleEelco Dolstra1-12/+79
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 Replace hasSubstitutes() with querySubstitutablePaths()Eelco Dolstra8-24/+52
querySubstitutablePaths() takes a set of paths, so this greatly reduces daemon <-> client latency.
2012-07-11 Add a function queryValidPaths()Eelco Dolstra8-3/+49
queryValidPaths() combines multiple calls to isValidPath() in one. This matters when using the Nix daemon because it reduces latency. For instance, on "nix-env -qas \*" it reduces execution time from 5.7s to 4.7s (which is indistinguishable from the non-daemon case).
2012-07-11 Rename queryValidPaths() to queryAllValidPaths()Eelco Dolstra9-17/+17
2012-07-11 Implement querySubstitutablePathInfos() in the daemonEelco Dolstra7-55/+70
Also removed querySubstitutablePathInfo().
2012-07-11 nix-env: Determine which paths have substitutes in parallelEelco Dolstra2-2/+24
2012-07-11 CleanupEelco Dolstra1-3/+3
2012-07-09 Pass --insecure to curl so that https worksEelco Dolstra1-1/+1
2012-07-09 Inline fetchurl.shEelco Dolstra3-9/+13
2012-07-09 Add a test for the fetchurl functionEelco Dolstra3-1/+17
2012-07-09 Remove obsolete commentShea Levy1-3/+0
2012-07-09 corepkgs/fetchurl: Build locally and outside of the chrootShea Levy1-0/+6
2012-07-09 corepkgs/fetchurl: the 'system' argument can be optionalShea Levy1-1/+1
2012-07-09 corepkgs: distribute fetchurl filesShea Levy1-1/+1
2012-07-09 corepkgs/fetchurl: Call the shell directly instead of using the shebangShea Levy2-3/+2
2012-07-09 corepkgs/fetchurl.sh: Use config.nix's curlShea Levy2-2/+4
2012-07-09 The fetchurl builder is now fetchurl.shShea Levy1-1/+1
2012-07-09 Remove old fetchurl makefileShea Levy1-11/+0
2012-07-09 Move fetchurl files out of their subdirectoryShea Levy2-0/+0
2012-07-09 corepkgs/config.nix.in: We'll need curlShea Levy1-0/+1
2012-07-09 Resurrect old corepkgs fetchurlShea Levy3-0/+39
2012-07-09 Really fix RPM buildsEelco Dolstra1-3/+3
2012-07-09 Add WWW::Curl as a dependencyEelco Dolstra2-0/+14
2012-07-09 Fix RPM buildsEelco Dolstra1-0/+1
http://hydra.nixos.org/build/2784908
2012-07-09 Get rid of nix.conf.exampleEelco Dolstra3-190/+2
No need to duplicate the nix.conf manpage.
2012-07-09 Install a nix.conf manpageEelco Dolstra3-12/+28
2012-07-09 download-from-binary-cache: add nix.conf optionsEelco Dolstra3-6/+30
2012-07-09 prim_import(): prefetch substitute info in parallel using queryMissing()Eelco Dolstra1-0/+6
2012-07-08 build.cc: Don't use hasSubstitute()Eelco Dolstra1-11/+25
Instead make a single call to querySubstitutablePathInfo() per derivation output. This is faster and prevents having to implement the "have" function in the binary cache substituter.
2012-07-08 CleanupEelco Dolstra1-13/+13
2012-07-06 download-from-binary-cache: parallelise fetching of NAR info filesEelco Dolstra9-131/+282
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 download-from-binary-cache: use WWW::CurlEelco Dolstra1-11/+68
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.
2012-07-03 download-from-binary-cache: do negative NAR info cachingEelco Dolstra1-5/+29
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 download-from-binary-cache: in queries, preferred cached infoEelco Dolstra1-20/+28