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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).
2020-03-30Remove global -I flagsEelco Dolstra
(cherry picked from commit 2c692a3b144523bca68dd6de618124ba6c9bb332)
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).
2019-10-09nix-env: Create ~/.nix-profile automaticallyEelco Dolstra
2019-06-25nix-channel: Don't fetch binary-cache-urlEelco Dolstra
This has been ignored since the Perl->C++ rewrite.
2019-06-24Refactor downloadCached() interfaceEelco Dolstra
(cherry picked from commit df3f5a78d5ab0a1f2dc9d288b271b38a9b8b33b5)
2019-06-24downloadCached: Return ETagEelco Dolstra
(cherry picked from commit 529add316c5356a8060c35f987643b7bf5c796dc)
2018-10-26Merge all nix-* binaries into nixEelco Dolstra
These are all symlinks to 'nix' now, reducing the installed size by about ~1.7 MiB.
2018-09-04Get effective user in Nix commandsMatthew Bauer
‘geteuid’ gives us the user that the command is being run as, including in setuid modes. By using geteuid to determind id, we can avoid the ‘sudo -i’ hack when upgrading Nix. So now, upgrading Nix on macOS is as simple as: $ sudo nix-channel --update $ sudo nix-env -u $ sudo launchctl stop org.nixos.nix-daemon $ sudo launchctl start org.nixos.nix-daemon or $ sudo systemctl restart nix-daemon
2018-05-09make sure not to use cached channels for nix-channel --updateYorick van Pelt
fixes #1964
2018-04-21Fix library ordering in MakefilesAndrew Dunham
The existing ordering linked `libutil` before `libstore`, which causes link failures when building statically. This is due to `libstore` using functions from `libutil`, and the fact that symbol resolution works "forward" - i.e. if you pass `-lfoo -lbar -lbaz`, any symbols that `libbar` uses from `libbaz` will be resolved, but symbols from `libfoo` will not since it comes first in the command line. All this to say: this commit reorders the libraries which fixes the link errors.
2018-03-20Remove unused channel-cache directoryEelco Dolstra
2018-03-20Style fixEelco Dolstra
2018-02-08Add plugins to make Nix more extensible.Shea Levy
All plugins in plugin-files will be dlopened, allowing them to statically construct instances of the various Register* types Nix supports.
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"
2017-05-16Improve progress indicatorEelco Dolstra
2017-05-05Figure out the user's home directory if $HOME is not setEelco Dolstra
2017-04-10nix-channel: error out if direct tarball unpack fails.Shea Levy
It's very unlikely a path ending in .tar.gz is a directory Fixes #1318
2016-11-26Revert "Get rid of unicode quotes (#1140)"Eelco Dolstra
This reverts commit f78126bfd6b6c8477fcdbc09b2f98772dbe9a1e7. There really is no need for such a massive change...
2016-11-25Get rid of unicode quotes (#1140)Guillaume Maudoux
2016-11-21nix-channel: Fix --update <CHANNELS>Eelco Dolstra
This unbreaks "nixos-rebuild --upgrade".
2016-09-14Enable HTTP/2 supportEelco Dolstra
The binary cache store can now use HTTP/2 to do lookups. This is much more efficient than HTTP/1.1 due to multiplexing: we can issue many requests in parallel over a single TCP connection. Thus it's no longer necessary to use a bunch of concurrent TCP connections (25 by default). For example, downloading 802 .narinfo files from https://cache.nixos.org/, using a single TCP connection, takes 11.8s with HTTP/1.1, but only 0.61s with HTTP/2. This did require a fairly substantial rewrite of the Downloader class to use the curl multi interface, because otherwise curl wouldn't be able to do multiplexing for us. As a bonus, we get connection reuse even with HTTP/1.1. All downloads are now handled by a single worker thread. Clients call Downloader::enqueueDownload() to tell the worker thread to start the download, getting a std::future to the result.
2016-08-31download.hh: Fix conflicts from nix-channel-c++ mergeShea Levy
2016-08-11nix-channel: implement in c++Shea Levy