epm-install: add non interactive install task (--auto support)

bin/epm-install

@@ -616,15 +616,35 @@ epm_print_install_names_command()
 	esac
 }
 
+# apt-repo with non_interactive support
+apt_repo_prepare()
+{
+    assure_exists apt-repo
+    [ -n "$non_interactive" ] || return
+
+    set_sudo
+    trap "$SUDO rm /etc/apt/apt.conf.d/eepm-apt-noninteractive.conf 2>/dev/null" EXIT
+    echo 'APT::Get::Assume-Yes "true";' | $SUDO tee /etc/apt/apt.conf.d/eepm-apt-noninteractive.conf >/dev/null
+}
+
+apt_repo_after()
+{
+    [ -n "$non_interactive" ] || return
+
+    $SUDO rm /etc/apt/apt.conf.d/eepm-apt-noninteractive.conf 2>/dev/null
+}
 
 epm_install()
 {
     if [ "$BASEDISTRNAME" = "alt" ] ; then
         if tasknumber "$pkg_names" >/dev/null ; then
-            assure_exists apt-repo
-            # TODO: add --auto support
+            local res
+            # TODO: don't use apt-repo
+            apt_repo_prepare
             sudocmd_foreach "apt-repo test" $(tasknumber $pkg_names)
-            return
+            res=$?
+            apt_repo_after
+            return $res
         fi
     fi