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2024-08-08refactor: make HashType and Base enum classes for type safetyJade Lovelace
Change-Id: I9fbd55a9d50464a56fe11cb42a06a206914150d8
2024-08-01Reapply "libfetchers: make attribute / URL query handling consistent"Maximilian Bosch
The original attempt at this introduced a regression; this commit reverts the revert and fixes the regression. This reverts commit 3e151d4d77b5296b9da8c3ad209932d1dfa44c68. Fix to the regression: flakeref: fix handling of `?dir=` param for flakes in subdirs As reported in #419[1], accessing a flake in a subdir of a Git repository fails with the previous commit[2] applied with the error error: unsupported Git input attribute 'dir' The problem is that the `dir`-param is inserted into the parsed URL if a flake is fetched from the subdir of a Git repository. However, for the fetching part this isn't even needed. The fix is to just pass `subdir` as second argument to `FlakeRef` (which needs a `basedir` that can be empty) and leave the parsedURL as-is. Added a regression test to make sure we don't run into this again. [1] https://git.lix.systems/lix-project/lix/issues/419 [2] e22172aaf6b6a366cecd3c025590e68fa2b91bcc, originally 3e151d4d77b5296b9da8c3ad209932d1dfa44c68 Change-Id: I2c72d5a32e406a7ca308e271730bd0af01c5d18b
2024-07-05libstore: convert dumpPath to a generatoreldritch horrors
Change-Id: Ic4cf5562504aa29130304469936f958c0426e5ef
2024-06-24Revert "libfetchers: make attribute / URL query handling consistent"jade
This reverts commit 35eec921af1043fc6322edc0ad88c872d41623b8. Reason for revert: Regressed nix-eval-jobs, and it appears to be this change is buggy/missing a case. It just needs another pass. Code causing the problem in n-e-j, when invoked with `nix-eval-jobs --flake '.#hydraJobs'`: ``` n-e-j/tests/assets » ../../build/src/nix-eval-jobs --meta --workers 1 --flake .#hydraJobs warning: unknown setting 'trusted-users' warning: `--gc-roots-dir' not specified error: unsupported Git input attribute 'dir' error: worker error: error: unsupported Git input attribute 'dir' ``` ``` nix::Value *vRoot = [&]() { if (args.flake) { auto [flakeRef, fragment, outputSpec] = nix::parseFlakeRefWithFragmentAndExtendedOutputsSpec( args.releaseExpr, nix::absPath(".")); nix::InstallableFlake flake{ {}, state, std::move(flakeRef), fragment, outputSpec, {}, {}, args.lockFlags}; return flake.toValue(*state).first; } else { return releaseExprTopLevelValue(*state, autoArgs, args); } }(); ``` Inspecting the program behaviour reveals that `dir` was in fact set in the URL going into the fetcher. This is in turn because unlike in the case changed in this commit, it was not erased before handing it to libfetchers, which is probably just a mistake. ``` (rr) up 3 0x00007ffff60262ae in nix::fetchers::Input::fromURL (url=..., requireTree=requireTree@entry=true) at src/libfetchers/fetchers.cc:39 warning: Source file is more recent than executable. 39 auto res = inputScheme->inputFromURL(url, requireTree); (rr) p url $1 = (const nix::ParsedURL &) @0x7fffdc874190: {url = "git+file:///home/jade/lix/nix-eval-jobs", base = "git+file:///home/jade/lix/nix-eval-jobs", scheme = "git+file", authority = std::optional<std::string> = {[contained value] = ""}, path = "/home/jade/lix/nix-eval-jobs", query = std::map with 1 element = {["dir"] = "tests/assets"}, fragment = ""} (rr) up 4 0x00007ffff789d904 in nix::parseFlakeRefWithFragment (url=".#hydraJobs", baseDir=std::optional<std::string> = {...}, allowMissing=allowMissing@entry=false, isFlake=isFlake@entry=true) at src/libexpr/flake/flakeref.cc:179 warning: Source file is more recent than executable. 179 FlakeRef(Input::fromURL(parsedURL, isFlake), getOr(parsedURL.query, "dir", "")), (rr) p parsedURL $2 = {url = "git+file:///home/jade/lix/nix-eval-jobs", base = "git+file:///home/jade/lix/nix-eval-jobs", scheme = "git+file", authority = std::optional<std::string> = {[contained value] = ""}, path = "/home/jade/lix/nix-eval-jobs", query = std::map with 1 element = { ["dir"] = "tests/assets"}, fragment = ""} (rr) list 174 175 if (pathExists(flakeRoot + "/.git/shallow")) 176 parsedURL.query.insert_or_assign("shallow", "1"); 177 178 return std::make_pair( 179 FlakeRef(Input::fromURL(parsedURL, isFlake), getOr(parsedURL.query, "dir", "")), 180 fragment); 181 } ``` Change-Id: Ib55a882eaeb3e59228857761dc1e3b2e366b0f5e
2024-06-22libfetchers: make attribute / URL query handling consistentMaximilian Bosch
The original idea was to fix lix#174, but for a user friendly solution, I figured that we'd need more consistency: * Invalid query params will cause an error, just like invalid attributes. This has the following two consequences: * The `?dir=`-param from flakes will be removed before the URL to be fetched is passed to libfetchers. * The tarball fetcher doesn't allow URLs with custom query params anymore. I think this was questionable anyways given that an arbitrary set of query params was silently removed from the URL you wanted to fetch. The correct way is to use an attribute-set with a key `url` that contains the tarball URL to fetch. * Same for the git & mercurial fetchers: in that case it doesn't even matter though: both fetchers added unused query params to the URL that's passed from the input scheme to the fetcher (`url2` in the code). It turns out that this was never used since the query parameters were erased again in `getActualUrl`. * Validation happens for both attributes and URLs. Previously, a lot of fetchers validated e.g. refs/revs only when specified in a URL and the validity of attribute names only in `inputFromAttrs`. Now, all the validation is done in `inputFromAttrs` and `inputFromURL` constructs attributes that will be passed to `inputFromAttrs`. * Accept all attributes as URL query parameters. That also includes lesser used ones such as `narHash`. And "output" attributes like `lastModified`: these could be declared already when declaring inputs as attribute rather than URL. Now the behavior is at least consistent. Personally, I think we should differentiate in the future between "fetched input" (basically the attr-set that ends up in the lock-file) and "unfetched input" earlier: both inputFrom{Attrs,URL} entrypoints are probably OK for unfetched inputs, but for locked/fetched inputs a custom entrypoint should be used. Then, the current entrypoints wouldn't have to allow these attributes anymore. Change-Id: I1be1992249f7af8287cfc37891ab505ddaa2e8cd
2024-06-18filetransfer: {up,down}load -> transfereldritch horrors
even the transfer function is not all that necessary since there aren't that many users, but we'll keep it for now. we could've kept both names but we also kind of want to use `download` for something else very soon Change-Id: I005e403ee59de433e139e37aa2045c26a523ccbf
2024-05-09add and fix -Wignored-qualifiersQyriad
Change-Id: I4bffa766ae04dd80355f9b8c10e59700e4b406da
2024-03-17Delete hasPrefix and hasSuffix from the codebaseJade Lovelace
These now have equivalents in the standard lib in C++20. This change was performed with a custom clang-tidy check which I will submit later. Executed like so: ninja -C build && run-clang-tidy -checks='-*,nix-*' -load=build/libnix-clang-tidy.so -p .. -fix ../tests | tee -a clang-tidy-result Change-Id: I62679e315ff9e7ce72a40b91b79c3e9fc01b27e9
2023-08-22Tarball trees: Propagate lastModifiedEelco Dolstra
This makes them behave consistently with GitHub/GitLab flakes.
2023-08-01Don't require .tar/.zip extension for tarball flakerefsEelco Dolstra
Special-casing the file name is rather ugly, so we shouldn't do that. So now any {file,http,https} URL is handled by TarballInputScheme, except for non-flake inputs (i.e. inputs that have the attribute `flake = false`).
2023-07-07Simplify `ContentAddress`John Ericson
Whereas `ContentAddressWithReferences` is a sum type complex because different varieties support different notions of reference, and `ContentAddressMethod` is a nested enum to support that, `ContentAddress` can be a simple pair of a method and hash. `ContentAddress` does not need to be a sum type on the outside because the choice of method doesn't effect what type of hashes we can use. Co-Authored-By: Cale Gibbard <cgibbard@gmail.com>
2023-06-13Allow tarball URLs to redirect to a lockable immutable URLEelco Dolstra
Previously, for tarball flakes, we recorded the original URL of the tarball flake, rather than the URL to which it ultimately redirects. Thus, a flake URL like http://example.org/patchelf-latest.tar that redirects to http://example.org/patchelf-<revision>.tar was not really usable. We couldn't record the redirected URL, because sites like GitHub redirect to CDN URLs that we can't rely on to be stable. So now we use the redirected URL only if the server returns the `x-nix-is-immutable` or `x-amz-meta-nix-is-immutable` headers in its response.
2023-02-28No inheritance for `TextInfo` and `FixedOutputInfo`John Ericson
2023-02-28Revert "Remove some designated initializers"John Ericson
This reverts commit ee9eb83a842eb97d0180fd9d349d30ff27fdb485.
2023-02-01Remove some designated initializersJohn Ericson
With the switch to C++20, the rules became more strict, and we can no longer initialize base classes. Make them comments instead. (BTW https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2287r1.html this offers some new syntax for this use-case. Hopefully this will be adopted and we can eventually use it.)
2023-01-23Don't add `StorePathDescriptor` for nowJohn Ericson
We don't need it yet, we can add it back later.
2023-01-06Use named field initialization for referencesJohn Ericson
2023-01-06Merge remote-tracking branch 'upstream/master' into path-infoJohn Ericson
2022-12-07Trivial changes from the lazy-trees branchEelco Dolstra
2022-05-25TypoEelco Dolstra
2022-05-19fetchTree: Allow fetching plain filesTony Olagbaiye
Add a new `file` fetcher type, which will fetch a plain file over http(s), or from the local file. Because plain `http(s)://` or `file://` urls can already correspond to `tarball` inputs (if the path ends-up with a know archive extension), the URL parsing logic is a bit convuluted in that: - {http,https,file}:// urls will be interpreted as either a tarball or a file input, depending on the extensions of the path part (so `https://foo.com/bar` will be a `file` input and `https://foo.com/bar.tar.gz` as a `tarball` input) - `file+{something}://` urls will be interpreted as `file` urls (with the `file+` part removed) - `tarball+{something}://` urls will be interpreted as `tarball` urls (with the `tarball+` part removed) Fix #3785 Co-Authored-By: Tony Olagbaiye <me@fron.io>
2022-03-10Merge remote-tracking branch 'upstream/master' into path-infoJohn Ericson
2022-02-24libfetchers: Rename immutable -> lockedEelco Dolstra
This is more consistent with flake terminology.
2022-02-16InputScheme::fetch(): Return a StorePath instead of a TreeEelco Dolstra
2022-01-18Get rid of std::shared_ptr<std::string> and ref<std::string>Eelco Dolstra
These were needed back in the pre-C++11 era because we didn't have move semantics. But now we do.
2021-12-03Add support for .tar.gz shorthand (.tgz) to TarballInputSchemeConnor Baker
2021-09-30Merge remote-tracking branch 'upstream/master' into path-infoJohn Ericson
2021-07-06allow fetchTarball to take a `name` argumentregnat
2021-05-29Add .tar.zst support for TarballInputSchemeTimothy Klim
2021-04-09Revert "libfetchers/tarball: Lock on effectiveUrl"Eelco Dolstra
This reverts commit fc6bfb261d50102016ed812ecf9949d41fe539f7. Fixes #4672.
2021-04-05Merge branch 'master' into path-infoJohn Ericson
2021-03-02libfetchers/tarball: Lock on effectiveUrldramforever
Basically, if a tarball URL is used as a flake input, and the URL leads to a redirect, the final redirect destination would be recorded as the locked URL. This allows tarballs under https://nixos.org/channels to be used as flake inputs. If we, as before, lock on to the original URL it would break every time the channel updates.
2021-02-25Merge remote-tracking branch 'upstream/master' into path-infoJohn Ericson
2021-01-22Remove expectedETag assert in tarball.ccMatthew Bauer
2020-12-23Cast variants fully for libc++10Matthew Bauer
libc++10 seems to be stricter on what it allows in variant conversion. I'm not sure what the rules are here, but this is the minimal change needed to get through the compilation errors.
2020-10-12Merge remote-tracking branch 'upstream/master' into path-infoJohn Ericson
2020-10-07Use PathReferences more widelyJohn Ericson
2020-10-06Remove static variable name clashesEelco Dolstra
This was useful for an experiment with building Nix as a single compilation unit. It's not very useful otherwise but also doesn't hurt...
2020-09-29Make Headers an optional argumentEelco Dolstra
2020-09-16Fetch commits from github/gitlab using Auth headerGreg Hale
`nix flake info` calls the github 'commits' API, which requires authorization when the repository is private. Currently this request fails with a 404. This commit adds an authorization header when calling the 'commits' API. It also changes the way that the 'tarball' API authenticates, moving the user's token from a query parameter into the Authorization header. The query parameter method is recently deprecated and will be disallowed in November 2020. Using them today triggers a warning email.
2020-08-06Minimize the usage of `Hash::dummy`John Ericson
2020-06-26Merge remote-tracking branch 'origin/master' into flakesEelco Dolstra
2020-06-19More designated initializersJohn Ericson
2020-06-19Merge remote-tracking branch 'me/no-stringly-typed-derivation-output' into ↵John Ericson
validPathInfo-ca-proper-datatype
2020-06-18Merge branch 'validPathInfo-temp' into validPathInfo-ca-proper-datatypeJohn Ericson
2020-06-18Revert the `enum struct` changeJohn Ericson
Not a regular git revert as there have been many merges and things.
2020-06-18Merge branch 'enum-class' into no-hash-type-unknownJohn Ericson
2020-06-18Merge remote-tracking branch 'upstream/master' into enum-classJohn Ericson
2020-06-17Merge remote-tracking branch 'origin/master' into flakesEelco Dolstra
2020-06-12Merge pull request #3674 from matthewbauer/allow-empty-hash2Eelco Dolstra
Allow empty hash in derivations