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2017-05-01Add a dummy Store::buildPaths() methodEelco Dolstra
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 c30330df6f67c81986dfb124631bc756c8e58c0d in binary cache and legacy SSH stores.
2017-04-13Convert Settings to the new config systemEelco Dolstra
This makes all config options self-documenting. Unknown or unparseable config settings and --option flags now cause a warning.
2017-04-13Merge branch 'rework-options' of https://github.com/copumpkin/nixEelco Dolstra
2017-04-13Add a Config class to simplify adding configuration settingsEelco Dolstra
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.
2017-04-10Allow "auto" as a store URIEelco Dolstra
Using the empty string is likely to be ambiguous in some contexts.
2017-04-06nix-daemon: Disable path info cacheEelco Dolstra
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).
2017-03-21Only use cache.nixos.org when the store is /nix/storeEelco Dolstra
This is consistent with the behaviour of the old download-from-binary-cache substituter.
2017-03-21Restore cache.nixos.org as the default substituterEelco Dolstra
Fixes #1283.
2017-03-16copyPaths(): Use queryValidPaths() to reduce SSH latencyEelco Dolstra
2017-03-16copyPaths(): Don't query path info for a path the target already hasEelco Dolstra
For example, this cuts "nix-copy-closure --from" on a NixOS system closure from 15.9s to 0.5s.
2017-03-03build-remote: Don't use a SSH masterEelco Dolstra
This is unnecessary because we make only one connection.
2017-02-22Explicitly model all settings and fail on unrecognized onesDan Peebles
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.
2017-02-22RemoteStore::addToStore(): Pass content-addressability assertionEelco Dolstra
... 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
2017-02-07Merge branch 'nix-copy-closure-c++' of https://github.com/shlevy/nixEelco Dolstra
2017-02-07copyStorePath(): Don't require signatures for "trusted" storesEelco Dolstra
For example, SSH stores could be trusted.
2017-02-07Provide default implementations for a couple of Store methodsEelco Dolstra
2017-01-26exportReferencesGraph: Export more complete info in JSON formatEelco Dolstra
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.
2017-01-20nix-copy-closure: Implement in C++.Shea Levy
Tests fail currently because the database is not given proper hashes in the VM
2016-11-10build-remote: Implement in C++Shea Levy
2016-11-09copyClosure() / copyStorePath(): Expose dontCheckSigsEelco Dolstra
Needed by Hydra.
2016-11-09Merge branch 'ssh-store' of https://github.com/shlevy/nixEelco Dolstra
2016-10-21BinaryCacheStore: Optionally write a NAR listingEelco Dolstra
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
2016-10-07Store::queryValidPaths(): Use async queryPathInfo()Eelco Dolstra
This allows the binary cache substituter to pipeline requests.
2016-10-07Implement generic Store::queryValidPaths()Eelco Dolstra
2016-10-07Add copyClosure utility function for HydraEelco Dolstra
2016-09-21printMsg(lvlError, ...) -> printError(...) etc.Eelco Dolstra
2016-09-16Make computeFSClosure() single-threaded againEelco Dolstra
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.)
2016-09-02Factor out the unix domain socket-specific code from RemoteStoreShea Levy
2016-09-02Factor a function to get the store type from a URI out of the main ↵Shea Levy
RegisterStoreImplementation
2016-09-02Merge openStore and openStoreAt with default argumentsShea Levy
2016-08-10Mark content-addressed paths in the Nix database and in .narinfoEelco Dolstra
This allows such paths to be imported without signatures.
2016-07-26makeFixedOutputPath(): Drop superfluous HashType argumentEelco Dolstra
2016-06-20Re-implement negative binary cache lookup cachingEelco Dolstra
2016-06-02Allow setting the state directory as a store parameterEelco Dolstra
E.g. "local?store=/tmp/store&state=/tmp/var".
2016-06-01Make the store directory a member variable of StoreEelco Dolstra
2016-05-30Fix repair during substitutionEelco Dolstra
2016-05-04Add a Store::addToStore() variant that accepts a NAREelco Dolstra
As a side effect, this ensures that signatures are propagated when copying paths between stores. Also refactored import/export to make use of this.
2016-05-04Remove OpenSSL-based signingEelco Dolstra
2016-05-04Add a copyStorePath() utility functionEelco Dolstra
2016-04-29Allow parameters in store URIsEelco Dolstra
This is to allow store-specific configuration, e.g. s3://my-cache?compression=bzip2&secret-key=/path/to/key.
2016-04-29Eliminate the substituter mechanismEelco Dolstra
Substitution is now simply a Store -> Store copy operation, most typically from BinaryCacheStore to LocalStore.
2016-04-21Fix test failuresEelco Dolstra
2016-04-21Implement S3BinaryCacheStore::queryAllValidPaths()Eelco Dolstra
This allows commands like "nix verify --all" or "nix path-info --all" to work on S3 caches. Unfortunately, this requires some ugly hackery: when querying the contents of the bucket, we don't want to have to read every .narinfo file. But the S3 bucket keys only include the hash part of each store path, not the name part. So as a special exception queryAllValidPaths() can now return store paths *without* the name part, and queryPathInfo() accepts such store paths (returning a ValidPathInfo object containing the full name).
2016-04-20Cache path info lookups in SQLiteEelco Dolstra
This re-implements the binary cache database in C++, allowing it to be used by other Store backends, in particular the S3 backend.
2016-04-19Move path info caching from BinaryCacheStore to StoreEelco Dolstra
Caching path info is generally useful. For instance, it speeds up "nix path-info -rS /run/current-system" (i.e. showing the closure sizes of all paths in the closure of the current system) from 5.6s to 0.15s. This also eliminates some APIs like Store::queryDeriver() and Store::queryReferences().
2016-04-07nix verify-paths: Add ‘--sigs-needed <N>’ flagEelco Dolstra
This specifies the number of distinct signatures required to consider each path "trusted". Also renamed ‘--no-sigs’ to ‘--no-trust’ for the flag that disables verifying whether a path is trusted (since a path can also be trusted if it has no signatures, but was built locally).
2016-04-05Add "nix sign-paths" commandEelco Dolstra
E.g. $ nix sign-paths -k ./secret -r $(type -p geeqie) signs geeqie and all its dependencies using the key in ./secret.
2016-03-24Move signature support from NarInfo to ValidPathInfoEelco Dolstra
2016-03-24TyposEelco Dolstra
2016-02-29Make store implementations pluggableEelco Dolstra
This for instance allows hydra-queue-runner to add the S3 backend at runtime.