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Add an HTTP binary cache store

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Allowing stuff like

  NIX_REMOTE=https://cache.nixos.org nix-store -qR /nix/store/x1p1gl3a4kkz5ci0nfbayjqlqmczp1kq-geeqie-1.1

or

  NIX_REMOTE=https://cache.nixos.org nix-store --export /nix/store/x1p1gl3a4kkz5ci0nfbayjqlqmczp1kq-geeqie-1.1 | nix-store --import
This commit is contained in:
Eelco Dolstra 2016-02-29 18:15:20 +01:00
parent 6170bb474b
commit e9c50064b5
7 changed files with 102 additions and 61 deletions
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2
src/libexpr/common-opts.cc
View file

@ -55,7 +55,7 @@ bool parseSearchPathArg(Strings::iterator & i,
Path lookupFileArg(EvalState & state, string s)
{
if (isUri(s))
return downloadFileCached(state.store, s, true);
return makeDownloader()->downloadCached(state.store, s, true);
else if (s.size() > 2 && s.at(0) == '<' && s.at(s.size() - 1) == '>') {
Path p = s.substr(1, s.size() - 2);
return state.findFile(p);

2
src/libexpr/parser.y
View file

@ -613,7 +613,7 @@ void EvalState::addToSearchPath(const string & s, bool warn)
}
if (isUri(path))
path = downloadFileCached(store, path, true);
path = makeDownloader()->downloadCached(store, path, true);
path = absPath(path);
if (pathExists(path)) {

2
src/libexpr/primops.cc
View file

@ -1703,7 +1703,7 @@ void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
} else
url = state.forceStringNoCtx(*args[0], pos);
Path res = downloadFileCached(state.store, url, unpack);
Path res = makeDownloader()->downloadCached(state.store, url, unpack);
mkString(v, res, PathSet({res}));
}