From 76c0e85929dc747288a8fe66a7bb77673cf2aa7e Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Sat, 14 Feb 2004 21:44:18 +0000
Subject: * The environment variable NIX_ROOT can now be set to execute Nix in
 a   chroot() environment. * A operation `--validpath' to register path
 validity.  Useful for   bootstrapping in a pure Nix environment. * Safety
 checks: ensure that files involved in store operations are in   the store.

---
 src/libmain/shared.cc | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/libmain/shared.cc')

diff --git a/src/libmain/shared.cc b/src/libmain/shared.cc
index 32f4f81240bb..ec639052b5c8 100644
--- a/src/libmain/shared.cc
+++ b/src/libmain/shared.cc
@@ -22,6 +22,13 @@ void sigintHandler(int signo)
    processor. */
 static void initAndRun(int argc, char * * argv)
 {
+    char * root = getenv("NIX_ROOT");
+
+    if (root) {
+        if (chroot(root) != 0)
+            throw SysError(format("changing root to `%1%'") % root);
+    }
+    
     /* Setup Nix paths. */
     nixStore = NIX_STORE_DIR;
     nixDataDir = NIX_DATA_DIR;
-- 
cgit 1.4.1