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path: root/src/libstore/store-api.hh
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2020-05-29Remove addToStore variant as requested by `FIXME`John Ericson
The idea is it's always more flexible to consumer a `Source` than a plain string, and it might even reduce memory consumption. I also looked at `addToStoreFromDump` with its `// FIXME: remove?`, but the worked needed for that is far more up for interpretation, so I punted for now.
2020-05-26Merge remote-tracking branch 'origin/master' into enum-FileIngestionMethodCarlo Nucera
2020-04-07Backport libfetchers from the flakes branchEelco Dolstra
This provides a pluggable mechanism for defining new fetchers. It adds a builtin function 'fetchTree' that generalizes existing fetchers like 'fetchGit', 'fetchMercurial' and 'fetchTarball'. 'fetchTree' takes a set of attributes, e.g. fetchTree { type = "git"; url = "https://example.org/repo.git"; ref = "some-branch"; rev = "abcdef..."; } The existing fetchers are just wrappers around this. Note that the input attributes to fetchTree are the same as flake input specifications and flake lock file entries. All fetchers share a common cache stored in ~/.cache/nix/fetcher-cache-v1.sqlite. This replaces the ad hoc caching mechanisms in fetchGit and download.cc (e.g. ~/.cache/nix/{tarballs,git-revs*}). This also adds support for Git worktrees (c169ea59049f861aaba429f48b828d0820b74d1d).
2020-03-29Replace some `bool recursive` with a new `FileIngestionMethod` enumJohn Ericson
2020-03-24Misc changes from the flakes branchEelco Dolstra
2020-03-24nix path-info --json: Print hash in SRI formatEelco Dolstra
(cherry picked from commit 442e665d6d3fcbdee7dece2f62a597142f8784b1)
2020-03-12pathInfoCache: Respect disk cache TTLs #3398Robert Hensing
2020-03-04nix-build: Fix !<output> handlingEelco Dolstra
This was broken by 22a754c091f765061f59bef5ce091268493bb138. https://hydra.nixos.org/eval/1573669
2020-02-28Fix GC failures on bad store path namesEelco Dolstra
It failed on names like '/nix/store/9ip48nkc9rfy0a4yaw98lp6gipqlib1a-'.
2020-02-07Fix segfault in gcc on i686-linuxEelco Dolstra
src/libstore/ssh-store.cc: In constructor 'nix::SSHStore::SSHStore(const string&, const Params&)': src/libstore/ssh-store.cc:31:21: internal compiler error: Segmentation fault compress) ^ Please submit a full bug report, with preprocessed source if appropriate. https://hydra.nixos.org/build/111545609
2019-12-17Add priority setting to storesEelco Dolstra
This allows overriding the priority of substituters, e.g. $ nix-store --store ~/my-nix/ -r /nix/store/df3m4da96d84ljzxx4mygfshm1p0r2n3-geeqie-1.4 \ --substituters 'http://cache.nixos.org?priority=100 daemon?priority=10' Fixes #3264.
2019-12-16nix-store -r: Handle symlinks to store pathsEelco Dolstra
Fixes #3270.
2019-12-10Make the Store API more type-safeEelco Dolstra
Most functions now take a StorePath argument rather than a Path (which is just an alias for std::string). The StorePath constructor ensures that the path is syntactically correct (i.e. it looks like <store-dir>/<base32-hash>-<name>). Similarly, functions like buildPaths() now take a StorePathWithOutputs, rather than abusing Path by adding a '!<outputs>' suffix. Note that the StorePath type is implemented in Rust. This involves some hackery to allow Rust values to be used directly in C++, via a helper type whose destructor calls the Rust type's drop() function. The main issue is the dynamic nature of C++ move semantics: after we have moved a Rust value, we should not call the drop function on the original value. So when we move a value, we set the original value to bitwise zero, and the destructor only calls drop() if the value is not bitwise zero. This should be sufficient for most types. Also lots of minor cleanups to the C++ API to make it more modern (e.g. using std::optional and std::string_view in some places).
2019-11-30Fix typosBrian Wignall
2019-11-11Merge pull request #3219 from Ericson2314/semicolonsEelco Dolstra
Fix extra semicolons warnings
2019-11-10Clean up semicolon and commaJohn Ericson
Thanks @bhipple for catching!
2019-11-10Fix extra ; warnings involving MakeErrorJohn Ericson
2019-10-29queryPathInfoUncached(): Return const ValidPathInfoEelco Dolstra
2019-10-29Move addToStoreFromDump to StoreEelco Dolstra
2019-10-21Allow content-addressable paths to have referencesEelco Dolstra
This adds a command 'nix make-content-addressable' that rewrites the specified store paths into content-addressable paths. The advantage of such paths is that 1) they can be imported without signatures; 2) they can enable deduplication in cases where derivation changes do not cause output changes (apart from store path hashes). For example, $ nix make-content-addressable -r nixpkgs.cowsay rewrote '/nix/store/g1g31ah55xdia1jdqabv1imf6mcw0nb1-glibc-2.25-49' to '/nix/store/48jfj7bg78a8n4f2nhg269rgw1936vj4-glibc-2.25-49' ... rewrote '/nix/store/qbi6rzpk0bxjw8lw6azn2mc7ynnn455q-cowsay-3.03+dfsg1-16' to '/nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16' We can then copy the resulting closure to another store without signatures: $ nix copy --trusted-public-keys '' ---to ~/my-nix /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16 In order to support self-references in content-addressable paths, these paths are hashed "modulo" self-references, meaning that self-references are zeroed out during hashing. Somewhat annoyingly, this means that the NAR hash stored in the Nix database is no longer necessarily equal to the output of "nix hash-path"; for content-addressable paths, you need to pass the --modulo flag: $ nix path-info --json /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16 | jq -r .[].narHash sha256:0ri611gdilz2c9rsibqhsipbfs9vwcqvs811a52i2bnkhv7w9mgw $ nix hash-path --type sha256 --base32 /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16 1ggznh07khq0hz6id09pqws3a8q9pn03ya3c03nwck1kwq8rclzs $ nix hash-path --type sha256 --base32 /nix/store/iq6g2x4q62xp7y7493bibx0qn5w7xz67-cowsay-3.03+dfsg1-16 --modulo iq6g2x4q62xp7y7493bibx0qn5w7xz67 0ri611gdilz2c9rsibqhsipbfs9vwcqvs811a52i2bnkhv7w9mgw
2019-10-09Remove world-writability from per-user directoriesEelco Dolstra
'nix-daemon' now creates subdirectories for users when they first connect. Fixes #509 (CVE-2019-17365). Should also fix #3127.
2019-09-03Add some noexceptsEelco Dolstra
This is to assert that callback functions should never throw (since the context in which they're called may not be able to handle the exception).
2019-06-25nix-channel: Don't fetch binary-cache-urlEelco Dolstra
This has been ignored since the Perl->C++ rewrite.
2019-03-25store-api.hh: add missing include for unordered_mapWill Dietz
2019-03-14findRoots(): Add 'censor' parameterEelco Dolstra
This is less brittle than filtering paths after the fact in nix-daemon.
2019-03-14findRuntimeRoots: Simplify/fix handling of /proc filesEelco Dolstra
Scanning of /proc/<pid>/{exe,cwd} was broken because '{memory:' was prepended twice. Also, get rid of the whole '{memory:...}' thing because it's unnecessary, we can just list the file in /proc directly.
2019-03-10Make roots a map of store paths to pinning linksGuillaume Maudoux
This new structure makes more sense as there may be many sources rooting the same store path. Many profiles can reference the same path but this is even more true with /proc/<pid>/maps where distinct pids can and often do map the same store path. This implementation is also more efficient as the `Roots` map contains only one entry per rooted store path.
2019-02-25Extract and expose splitUriAndParams functionDzmitry Zaitsau
which splits a URL into localtor and parameter parts
2019-01-18unsupported(): Show the name of the unsupported operationEelco Dolstra
2018-10-27Merge branch 'nix-doctor' of https://github.com/LnL7/nixEelco Dolstra
2018-09-07If fallback is enabled, temporarily disable substituters after a failureEelco Dolstra
Otherwise, we just keep asking the substituter for other .narinfo files, which can take a very long time due to retries/timeouts.
2018-09-02Store: expose the protocol version used by a storeDaiderd Jordan
2018-06-05Don't require --fallback to recover from disappeared binary cache NARsEelco Dolstra
2018-05-30Simplify the callback mechanismEelco Dolstra
2018-03-16Reduce substitution memory consumptionEelco 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.
2018-02-07Merge pull request #1816 from shlevy/add-pathEelco Dolstra
Add path primop.
2018-02-06Add path primop.Shea Levy
builtins.path allows specifying the name of a path (which makes paths with store-illegal names now addable), allows adding paths with flat instead of recursive hashes, allows specifying a filter (so is a generalization of filterSource), and allows specifying an expected hash (enabling safe path adding in pure mode).
2018-02-05Allow substituters to be marked as trustedEelco Dolstra
This is needed by nixos-install, which uses the Nix store on the installation CD as a substituter. We don't want to disable signature checking entirely because substitutes from cache.nixos.org should still be checked. So now we can pas "local?trusted=1" to mark only the Nix store in /nix as not requiring signatures. Fixes #1819.
2018-02-03Remove nix-build --hashEelco Dolstra
Instead, if a fixed-output derivation produces has an incorrect output hash, we now unconditionally move the outputs to the path corresponding with the actual hash and register it as valid. Thus, after correcting the hash in the Nix expression (e.g. in a fetchurl call), the fixed-output derivation doesn't have to be built again. It would still be good to have a command for reporting the actual hash of a fixed-output derivation (instead of throwing an error), but "nix-build --hash" didn't do that.
2018-01-31document ability to set NIX_REMOTE=unix://path/to/socketSpencer Baugh
2018-01-12import, builtins.readFile: Handle diverted storesEelco Dolstra
Fixes #1791
2017-10-23Turn $NIX_REMOTE into a configuration optionEelco Dolstra
2017-07-30Replace Unicode quotes in user-facing strings by ASCIIJörg Thalheim
Relevant RFC: NixOS/rfcs#4 $ ag -l | xargs sed -i -e "/\"/s/’/'/g;/\"/s/‘/'/g"
2017-07-14nix path-info: Show download sizes for binary cache storesEelco Dolstra
E.g. $ nix path-info --json --store https://cache.nixos.org nixpkgs.thunderbird -S ... "downloadHash": "sha256:1jlixpzi225wwa0f4xdrwrqgi47ip1qpj9p06fyxxg07sfmyi4q0", "downloadSize": 43047620, "closureDownloadSize": 84745960 } ]
2017-07-14nix path-info: Don't barf on invalid pathsEelco Dolstra
Now you get [ { "path": "/nix/store/fzvliz4j5xzvnd0w5zgw2l0ksqh578yk-bla", "valid": false } ]
2017-07-04Sort substituters by priorityEelco Dolstra
Fixes #1438.
2017-07-03Replace a few bool flags with enumsEelco Dolstra
Functions like copyClosure() had 3 bool arguments, which creates a severe risk of mixing up arguments. Also, implement copyClosure() using copyPaths().
2017-05-11Change the meaning of info.ultimateEelco Dolstra
It now means "paths that were built locally". It no longer includes paths that were added locally. For those we don't need info.ultimate, since we have the content-addressability assertion (info.ca).
2017-05-02build-remote: Fix fallback to other machines when connecting failsEelco Dolstra
Opening an SSHStore or LegacySSHStore does not actually establish a connection, so the try/catch block here did nothing. Added a Store::connect() method to test whether a connection can be established.
2017-05-01build-remote: Don't require signaturesEelco Dolstra
This restores the old behaviour.