From b8a0956443606b251a0cfe04b313183f986a5d31 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Tue, 26 May 2015 16:01:37 +0200
Subject: [PATCH] reproduce.tt: Add option to fetch but not build

---
 src/root/reproduce.tt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/root/reproduce.tt b/src/root/reproduce.tt
index f24d2fe6..3d499c89 100644
--- a/src/root/reproduce.tt
+++ b/src/root/reproduce.tt
@@ -15,6 +15,7 @@ info() {
 
 
 # Process the command line.
+fetchOnly=
 while [ $# -gt 0 ]; do
     arg="$1"
     shift
@@ -43,6 +44,9 @@ Flags:
     to perform the build.  See the description of the --run-env flag
     in the nix-build(1) manpage for more details.
 
+  --fetch
+    Fetch the inputs and then exit.
+
 Any additional flags are passed to nix-build.  See the nix-build(1)
 manpage for details.
 EOF
@@ -54,6 +58,8 @@ EOF
             exit 1
         fi
         shift
+    elif [ "$arg" = --fetch ]; then
+        fetchOnly=1
     else
         extraArgs+=("$arg")
     fi
@@ -166,6 +172,8 @@ fi
 
 [%+ END %]
 
+if [ -n "$fetchOnly" ]; then exit 0; fi
+
 
 # Run nix-build.