Checking for dependencies at provision action

2 files changed, 18 insertions, 0 deletions

diff --git a/lib/hydra/misc b/lib/hydra/misc
index 2fd5518..6f74f8a 100644
--- a/lib/hydra/misc
+++ b/lib/hydra/misc
@@ -24,3 +24,16 @@ function hydra_user_input {
     export $param=$input
   fi
 }
+
+# Install a package.
+function hydra_install_package {
+  if [ -z "$1" ]; then
+    return
+  fi
+
+  dpkg -l $1 &> /dev/null
+
+  if [ "$?" == "1" ]; then
+    apt-get install $1
+  fi
+}
diff --git a/share/hydractl/provision b/share/hydractl/provision
index 2822864..fecef58 100755
--- a/share/hydractl/provision
+++ b/share/hydractl/provision
@@ -17,6 +17,11 @@ hydra_user_input version lenny "Distro version"
 hydra_user_input vg vg "Temporary install vg"
 hydra_user_input grub n "Setup GRUB? (y/n)"
 
+# Check for requirements.
+for reqs in debootstrap cryptsetup; do
+  hydra_install_package $req
+done
+
 # Warning.
 cat <<-EOF
 Make sure you have chosen the right parameters and that $device has the needed partitions: