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path: root/src/libexpr/primops/fetchMercurial.cc
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2018-05-30 Move evaluator-specific settings out of libstoreEelco Dolstra1-1/+1
2018-03-19 Shut up signedness warningEelco Dolstra1-1/+1
2018-01-16 Add pure evaluation modeEelco Dolstra1-0/+6
In this mode, the following restrictions apply: * The builtins currentTime, currentSystem and storePath throw an error. * $NIX_PATH and -I are ignored. * fetchGit and fetchMercurial require a revision hash. * fetchurl and fetchTarball require a sha256 attribute. * No file system access is allowed outside of the paths returned by fetch{Git,Mercurial,url,Tarball}. Thus 'nix build -f ./foo.nix' is not allowed. Thus, the evaluation result is completely reproducible from the command line arguments. E.g. nix build --pure-eval '( let nix = fetchGit { url = https://github.com/NixOS/nixpkgs.git; rev = "9c927de4b179a6dd210dd88d34bda8af4b575680"; }; nixpkgs = fetchGit { url = https://github.com/NixOS/nixpkgs.git; ref = "release-17.09"; rev = "66b4de79e3841530e6d9c6baf98702aa1f7124e4"; }; in (import (nix + "/release.nix") { inherit nix nixpkgs; }).build.x86_64-linux )' The goal is to enable completely reproducible and traceable evaluation. For example, a NixOS configuration could be fully described by a single Git commit hash. 'nixos-rebuild' would do something like nix build --pure-eval '( (import (fetchGit { url = file:///my-nixos-config; rev = "..."; })).system ') where the Git repository /my-nixos-config would use further fetchGit calls or Git externals to fetch Nixpkgs and whatever other dependencies it has. Either way, the commit hash would uniquely identify the NixOS configuration and allow it to reproduced.
2017-11-21 fetchGit/fetchMercurial: Fix directory inclusion checkEelco Dolstra1-2/+3
E.g. the existence of .gitignore would cause .git to be included.
2017-11-03 fetchGit/fetchMercurial: Filter out directories with untracked filesEelco Dolstra1-4/+8
2017-11-03 fetchGit: Add a testEelco Dolstra1-1/+1
2017-11-02 fetchMercurial: fix error messagetv1-1/+1
2017-11-01 fetchMercurial: Don't fetch hashes we already haveEelco Dolstra1-9/+19
2017-11-01 Add fetchMercurial primopEelco Dolstra1-0/+188
E.g. $ nix eval '(fetchMercurial https://www.mercurial-scm.org/repo/hello)' { branch = "default"; outPath = "/nix/store/alvb9y1kfz42bjishqmyy3pphnrh1pfa-source"; rev = "82e55d328c8ca4ee16520036c0aaace03a5beb65"; revCount = 1; shortRev = "82e55d328c8c"; } $ nix eval '(fetchMercurial { url = https://www.mercurial-scm.org/repo/hello; rev = "0a04b987be5ae354b710cefeba0e2d9de7ad41a9"; })' { branch = "default"; outPath = "/nix/store/alvb9y1kfz42bjishqmyy3pphnrh1pfa-source"; rev = "0a04b987be5ae354b710cefeba0e2d9de7ad41a9"; revCount = 0; shortRev = "0a04b987be5a"; } $ nix eval '(fetchMercurial /tmp/unclean-hg-tree)' { branch = "default"; outPath = "/nix/store/cm750cdw1x8wfpm3jq7mz09r30l9r024-source"; rev = "0000000000000000000000000000000000000000"; revCount = 0; shortRev = "000000000000"; }