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authorEelco Dolstra <eelco.dolstra@logicblox.com>2015-05-05T15·09+0200
committerEelco Dolstra <eelco.dolstra@logicblox.com>2015-05-05T15·09+0200
commit9451ef3731904090d7c8476137960a3fb9d4679d (patch)
treee1963c47fbba25a17f5a72670d774d28db229f1a /src/libexpr/download.hh
parent35d30d67ebcca90c3120eeaa7f38baee8805c670 (diff)
Allow URLs in the Nix search path
E.g. to install "hello" from the latest Nixpkgs:

  $ nix-build '<nixpkgs>' -A hello -I nixpkgs=https://nixos.org/channels/nixpkgs-unstable/nixexprs.tar.xz

Or to install a specific version of NixOS:

  $ nixos-rebuild switch -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/63def04891a0abc328b1b0b3a78ec02c58f48583.tar.gz
Diffstat (limited to 'src/libexpr/download.hh')
-rw-r--r--src/libexpr/download.hh2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libexpr/download.hh b/src/libexpr/download.hh
index 65396e5de329..36fa183d68f9 100644
--- a/src/libexpr/download.hh
+++ b/src/libexpr/download.hh
@@ -13,6 +13,8 @@ struct DownloadResult
 
 DownloadResult downloadFile(string url, string expectedETag = "");
 
+Path downloadFileCached(const string & url, bool unpack);
+
 MakeError(DownloadError, Error)
 
 }