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nix-env/nix-instantiate/nix-build: Support URIs

Browse source 
For instance, you can install Firefox from a specific Nixpkgs revision
like this:

  $ nix-env -f 63def04891.tar.gz -iA firefox

Or build a package from the latest nixpkgs-unstable channel:

  $ nix-build https://nixos.org/channels/nixpkgs-unstable/nixexprs.tar.xz -A hello
This commit is contained in:
Eelco Dolstra 2015-05-06 14:54:31 +02:00
parent 0705d04dfa
commit 6519f06f39
5 changed files with 19 additions and 14 deletions
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7
src/libexpr/common-opts.cc
View file

@ -1,5 +1,6 @@
#include "common-opts.hh"
#include "../libmain/shared.hh"
#include "shared.hh"
#include "download.hh"
#include "util.hh"
@ -53,7 +54,9 @@ bool parseSearchPathArg(Strings::iterator & i,
Path lookupFileArg(EvalState & state, string s)
{
if (s.size() > 2 && s.at(0) == '<' && s.at(s.size() - 1) == '>') {
if (isUri(s))
return downloadFileCached(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);
} else