etc: fail if we can't add a file

Fixes #598

1 files changed, 6 insertions, 0 deletions

diff --git a/modules/system/etc.nix b/modules/system/etc.nix
index b6c5827..d26c45e 100644
--- a/modules/system/etc.nix
+++ b/modules/system/etc.nix
@@ -51,6 +51,7 @@ in
 
       ln -sfn "$(readlink -f $systemConfig/etc)" /etc/static
 
+      errorOccurred=false
       for f in $(find /etc/static/* -type l); do
         l=/etc/''${f#/etc/static/}
         d=''${l%/*}
@@ -79,6 +80,7 @@ in
               if [ -z "$h" ]; then
                 echo "error: not linking environment.etc.\"''${l#/etc/}\" because $l already exists, skipping..." >&2
                 echo "existing file has unknown content $o, move and activate again to apply" >&2
+                errorOccurred=true
               fi
             fi
           fi
@@ -87,6 +89,10 @@ in
         fi
       done
 
+      if [ "$errorOccurred" != "false" ]; then
+        exit 1
+      fi
+
       for l in $(find /etc/* -type l 2> /dev/null); do
         f="$(echo $l | sed 's,/etc/,/etc/static/,')"
         f=/etc/static/''${l#/etc/}