950b46821f
The attributes previously stored in TreeInfo (narHash, revCount,
lastModified) are now stored in Input. This makes it less arbitrary
what attributes are stored where.
As a result, the lock file format has changed. An entry like
"info": {
"lastModified": 1585405475,
"narHash": "sha256-bESW0n4KgPmZ0luxvwJ+UyATrC6iIltVCsGdLiphVeE="
},
"locked": {
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "b88ff468e9850410070d4e0ccd68c7011f15b2be",
"type": "github"
},
is now stored as
"locked": {
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "b88ff468e9850410070d4e0ccd68c7011f15b2be",
"type": "github",
"lastModified": 1585405475,
"narHash": "sha256-bESW0n4KgPmZ0luxvwJ+UyATrC6iIltVCsGdLiphVeE="
},
The 'Input' class is now a dumb set of attributes. All the fetcher
implementations subclass InputScheme, not Input. This simplifies the
API.
Also, fix substitution of flake inputs. This was broken since lazy
flake fetching started using fetchTree internally.
88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
#include "common-eval-args.hh"
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#include "shared.hh"
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#include "filetransfer.hh"
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#include "util.hh"
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#include "eval.hh"
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#include "fetchers.hh"
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#include "registry.hh"
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#include "flake/flakeref.hh"
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#include "store-api.hh"
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namespace nix {
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MixEvalArgs::MixEvalArgs()
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{
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addFlag({
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.longName = "arg",
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.description = "argument to be passed to Nix functions",
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.labels = {"name", "expr"},
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.handler = {[&](std::string name, std::string expr) { autoArgs[name] = 'E' + expr; }}
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});
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addFlag({
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.longName = "argstr",
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.description = "string-valued argument to be passed to Nix functions",
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.labels = {"name", "string"},
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.handler = {[&](std::string name, std::string s) { autoArgs[name] = 'S' + s; }},
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});
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addFlag({
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.longName = "include",
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.shortName = 'I',
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.description = "add a path to the list of locations used to look up <...> file names",
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.labels = {"path"},
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.handler = {[&](std::string s) { searchPath.push_back(s); }}
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});
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addFlag({
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.longName = "impure",
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.description = "allow access to mutable paths and repositories",
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.handler = {[&]() {
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evalSettings.pureEval = false;
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}},
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});
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addFlag({
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.longName = "override-flake",
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.description = "override a flake registry value",
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.labels = {"original-ref", "resolved-ref"},
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.handler = {[&](std::string _from, std::string _to) {
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auto from = parseFlakeRef(_from, absPath("."));
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auto to = parseFlakeRef(_to, absPath("."));
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fetchers::Attrs extraAttrs;
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if (to.subdir != "") extraAttrs["dir"] = to.subdir;
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fetchers::overrideRegistry(from.input, to.input, extraAttrs);
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}}
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});
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}
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Bindings * MixEvalArgs::getAutoArgs(EvalState & state)
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{
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Bindings * res = state.allocBindings(autoArgs.size());
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for (auto & i : autoArgs) {
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Value * v = state.allocValue();
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if (i.second[0] == 'E')
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state.mkThunk_(*v, state.parseExprFromString(string(i.second, 1), absPath(".")));
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else
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mkString(*v, string(i.second, 1));
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res->push_back(Attr(state.symbols.create(i.first), v));
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}
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res->sort();
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return res;
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}
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Path lookupFileArg(EvalState & state, string s)
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{
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if (isUri(s)) {
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return state.store->toRealPath(
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fetchers::downloadTarball(
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state.store, resolveUri(s), "source", false).first.storePath);
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} else if (s.size() > 2 && s.at(0) == '<' && s.at(s.size() - 1) == '>') {
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Path p = s.substr(1, s.size() - 2);
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return state.findFile(p);
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} else
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return absPath(s);
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}
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}
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