lix -

Age	Commit message (Collapse)	Author
2018-03-16	Reduce substitution memory consumption	Eelco Dolstra
	copyStorePath() now pipes the output of srcStore->narFromPath() directly into dstStore->addToStore(). The sink used by the former is converted into a source usable by the latter using boost::coroutine2. This is based on [1]. This reduces the maximum resident size of $ nix build --store ~/my-nix/ /nix/store/b0zlxla7dmy1iwc3g459rjznx59797xy-binutils-2.28.1 --substituters file:///tmp/binary-cache-xz/ --no-require-sigs from 418592 KiB to 53416 KiB. (The previous commit also reduced the runtime from ~4.2s to ~3.4s, not sure why.) A further improvement will be to download files into a Sink. [1] https://github.com/NixOS/nix/compare/master...Mathnerd314:dump-fix-coroutine#diff-dcbcac55a634031f9cc73707da6e4b18 Issue #1969.
2018-02-12	Fix hang in build-remote	Eelco Dolstra

2018-01-31	Rename 1.12 -> 2.0	Eelco Dolstra
	Following discussion with Shea and Graham. It's a big enough change from the last release. Also, from a semver perspective, 2.0 makes more sense because we did remove some interfaces (like nix-pull/nix-push).
2017-11-20	signed-binary-caches -> require-sigs	Eelco Dolstra
	Unlike signed-binary-caches (which could only be '*' or ''), require-sigs is a proper Boolean option. The default is true.
2017-09-14	Show the pid of temporary roots	Eelco Dolstra

2017-09-14	nix-store -q --roots / --gc --print-roots: Print temporary / in-memory roots	Eelco Dolstra
	For example, $ nix-store -q --roots /nix/store/7phd2sav7068nivgvmj2vpm3v47fd27l-patchelf-0.8pre845_0315148 {temp:1} denotes that the path is only being kept alive by a temporary root (i.e. /nix/var/nix/temproots/). Similarly, $ nix-store --gc --print-roots ... {memory:9} -> /nix/store/094gpjn9f15ip17wzxhma4r51nvsj17p-curl-7.53.1 shows that curl is being used by some process.
2017-09-05	Add automatic garbage collection	Eelco Dolstra
	Nix can now automatically run the garbage collector during builds or while adding paths to the store. The option "min-free = <bytes>" specifies that Nix should run the garbage collector whenever free space in the Nix store drops below <bytes>. It will then delete garbage until "max-free" bytes are available. Garbage collection during builds is asynchronous; running builds are not paused and new builds are not blocked. However, there also is a synchronous GC run prior to the first build/substitution. Currently, no old GC roots are deleted (as in "nix-collect-garbage -d").
2017-09-05	GC: Don't delete own temproots file	Eelco Dolstra
	Since file locks are per-process rather than per-file-descriptor, the garbage collector would always acquire a lock on its own temproots file and conclude that it's stale.
2017-08-16	nix optimise-store: Show how much space has been freed	Eelco Dolstra

2017-07-03	Replace a few bool flags with enums	Eelco Dolstra
	Functions like copyClosure() had 3 bool arguments, which creates a severe risk of mixing up arguments. Also, implement copyClosure() using copyPaths().
2017-04-13	Merge branch 'rework-options' of https://github.com/copumpkin/nix	Eelco Dolstra

2017-04-13	Add a Config class to simplify adding configuration settings	Eelco 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.
2017-04-10	Minor cleanup	Eelco Dolstra
	Also, possible fix for #1310 on 32-bit systems.
2017-03-16	copyPaths(): Use queryValidPaths() to reduce SSH latency	Eelco Dolstra

2017-03-15	Store: Add a method for getting build logs	Eelco Dolstra
	This allows various Store implementations to provide different ways to get build logs. For example, BinaryCacheStore can get the build logs from the binary cache. Also, remove the log-servers option since we can use substituters for this.
2016-11-26	Revert "Get rid of unicode quotes (#1140)"	Eelco Dolstra
	This reverts commit f78126bfd6b6c8477fcdbc09b2f98772dbe9a1e7. There really is no need for such a massive change...
2016-11-25	Get rid of unicode quotes (#1140)	Guillaume Maudoux

2016-10-21	Remove addPathToAccessor	Eelco Dolstra

2016-10-21	BinaryCacheStore: Optionally write a NAR listing	Eelco 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
2016-09-16	Make computeFSClosure() single-threaded again	Eelco 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.)
2016-08-10	Mark content-addressed paths in the Nix database and in .narinfo	Eelco Dolstra
	This allows such paths to be imported without signatures.
2016-06-02	Make derivationFromPath work on diverted stores	Eelco Dolstra

2016-06-02	nix run: Mount the Nix store in a private namespace	Eelco Dolstra
	This is a convenience command to allow users who are not privileged to create /nix/store to use Nix with regular binary caches. For example, $ NIX_REMOTE="local?state=$HOME/nix/var&real=/$HOME/nix/store" nix run firefox bashInteractive will download Firefox and bash from cache.nixos.org, then start a shell in which $HOME/nix/store is mounted on /nix/store.
2016-06-02	LocalStore: Allow the physical and logical store directories to differ	Eelco Dolstra
	This is primarily to subsume the functionality of the copy-from-other-stores substituter. For example, in the NixOS installer, we can now do (assuming we're in the target chroot, and the Nix store of the installation CD is bind-mounted on /tmp/nix): $ nix-build ... --option substituters 'local?state=/tmp/nix/var&real=/tmp/nix/store' However, unlike copy-from-other-stores, this also allows write access to such a store. One application might be fetching substitutes for /nix/store in a situation where the user doesn't have sufficient privileges to create /nix, e.g.: $ NIX_REMOTE="local?state=/home/alice/nix/var&real=/home/alice/nix/store" nix-build ...
2016-06-02	Allow setting the state directory as a store parameter	Eelco Dolstra
	E.g. "local?store=/tmp/store&state=/tmp/var".
2016-06-01	Make the store directory a member variable of Store	Eelco Dolstra

2016-05-31	nix-copy-closure / build-remote.pl: Disable signature checking	Eelco Dolstra
	This restores the Nix 1.11 behaviour.
2016-05-30	Check signatures before downloading the substitute	Eelco Dolstra

2016-05-30	Re-implement binary cache signature checking	Eelco Dolstra
	This is now done in LocalStore::addToStore(), rather than in the binary cache substituter (which no longer exists).
2016-05-04	Add a Store::addToStore() variant that accepts a NAR	Eelco 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.
2016-05-04	Remove OpenSSL-based signing	Eelco Dolstra

2016-04-29	Allow parameters in store URIs	Eelco Dolstra
	This is to allow store-specific configuration, e.g. s3://my-cache?compression=bzip2&secret-key=/path/to/key.
2016-04-29	Eliminate the substituter mechanism	Eelco Dolstra
	Substitution is now simply a Store -> Store copy operation, most typically from BinaryCacheStore to LocalStore.
2016-04-19	Move path info caching from BinaryCacheStore to Store	Eelco 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().
2016-04-08	Remove failed build caching	Eelco Dolstra
	This feature was implemented for Hydra, but Hydra no longer uses it.
2016-04-08	Make LocalStore thread-safe	Eelco Dolstra
	Necessary for multi-threaded commands like "nix verify-paths".
2016-04-07	Sign locally-built paths	Eelco Dolstra
	Locally-built paths are now signed automatically using the secret keys specified by the ‘secret-key-files’ option.
2016-04-05	Add "nix copy-sigs" command	Eelco Dolstra
	This imports signatures from one store into another. E.g. $ nix copy-sigs -r /run/current-system -s https://cache.nixos.org/ imported 595 signatures
2016-03-30	LocalStore: Keep track of ultimately trusted paths	Eelco Dolstra
	These are content-addressed paths or outputs of locally performed builds. They are trusted even if they don't have signatures, so "nix verify-paths" won't complain about them.
2016-03-30	Improve the SQLite wrapper API	Eelco Dolstra
	In particular, this eliminates a bunch of boilerplate code.
2016-03-30	Factour out SQLite handling	Eelco Dolstra

2016-02-26	importPaths(): Optionally add NARs to binary cache accessor	Eelco Dolstra
	This enables an optimisation in hydra-queue-runner, preventing a download of a NAR it just uploaded to the cache when reading files like hydra-build-products.
2016-02-25	Add NAR / Store accessor abstraction	Eelco Dolstra
	This is primary to allow hydra-queue-runner to extract files like "nix-support/hydra-build-products" from NARs in binary caches.
2016-02-24	Eliminate reserveSpace flag	Eelco Dolstra

2016-02-15	Expose the export magic value and move LocalStore::queryReferences to Store	Eelco Dolstra

2016-02-04	StoreAPI -> Store	Eelco Dolstra
	Calling a class an API is a bit redundant...
2016-02-04	Eliminate the "store" global variable	Eelco Dolstra
	Also, move a few free-standing functions into StoreAPI and Derivation. Also, introduce a non-nullable smart pointer, ref<T>, which is just a wrapper around std::shared_ptr ensuring that the pointer is never null. (For reference-counted values, this is better than passing a "T&", because the latter doesn't maintain the refcount. Usually, the caller will have a shared_ptr keeping the value alive, but that's not always the case, e.g., when passing a reference to a std::thread via std::bind.)
2016-01-31	Use the daemon when we don't have write access to the Nix database	Eelco Dolstra

2015-09-18	Shut up clang warnings	Eelco Dolstra

2015-07-17	Allow remote builds without sending the derivation closure	Eelco Dolstra
	Previously, to build a derivation remotely, we had to copy the entire closure of the .drv file to the remote machine, even though we only need the top-level derivation. This is very wasteful: the closure can contain thousands of store paths, and in some Hydra use cases, include source paths that are very large (e.g. Git/Mercurial checkouts). So now there is a new operation, StoreAPI::buildDerivation(), that performs a build from an in-memory representation of a derivation (BasicDerivation) rather than from a on-disk .drv file. The only files that need to be in the Nix store are the sources of the derivation (drv.inputSrcs), and the needed output paths of the dependencies (as described by drv.inputDrvs). "nix-store --serve" exposes this interface. Note that this is a privileged operation, because you can construct a derivation that builds any store path whatsoever. Fixing this will require changing the hashing scheme (i.e., the output paths should be computed from the other fields in BasicDerivation, allowing them to be verified without access to other derivations). However, this would be quite nice because it would allow .drv-free building (e.g. "nix-env -i" wouldn't have to write any .drv files to disk). Fixes #173.