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authorShea Levy <shea@shealevy.com>2014-02-08T05·05-0500
committerShea Levy <shea@shealevy.com>2014-02-08T05·13-0500
commit64e23d0a38f316a07cef0960d0ed74a450214283 (patch)
tree5c1e75efbe703e4163f087cb05356bcaa27a9999 /src/libmain
parent5671188eb2822b7392a6affa5ebe2f1eb8f521a0 (diff)
Add download-via-ssh substituter
This substituter connects to a remote host, runs nix-store --serve
there, and then forwards substituter commands on to the remote host and
sends their results to the calling program. The ssh-substituter-hosts
option can be specified as a list of hosts to try.

This is an initial implementation and, while it works, it has some
limitations:

* Only the first host is used
* There is no caching of query results (all queries are sent to the
  remote machine)
* There is no informative output (such as progress bars)
* Some failure modes may cause unhelpful error messages
* There is no concept of trusted-ssh-substituter-hosts

Signed-off-by: Shea Levy <shea@shealevy.com>
Diffstat (limited to 'src/libmain')
-rw-r--r--src/libmain/shared.cc3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libmain/shared.cc b/src/libmain/shared.cc
index fb70cb076732..30238c7fbe9a 100644
--- a/src/libmain/shared.cc
+++ b/src/libmain/shared.cc
@@ -223,6 +223,9 @@ static void initAndRun(int argc, char * * argv)
         else remaining.push_back(arg);
     }
 
+    if (char *pack = getenv("_NIX_OPTIONS"))
+        settings.unpack(pack);
+
     settings.update();
 
     run(remaining);