Reorganise etc directory for easier installation

This also means that the install script will install bash-completion for
heat.

Change-Id: Ib60346c72ce6277951cb51952e359f97be20a1be
Signed-off-by: Zane Bitter <zbitter@redhat.com>

install.sh

@@ -5,41 +5,55 @@ if [[ $EUID -ne 0 ]]; then
     exit 1
 fi
 
-CONF_DIR=/etc/heat
+# Install prefix for config files (e.g. "/usr/local").
+# Leave empty to install into /etc
+CONF_PREFIX=""
 LOG_DIR=/var/log/heat
 
-mkdir -p $LOG_DIR
-mkdir -p $CONF_DIR
 
-pushd etc > /dev/null
+install -d $LOG_DIR
+
+
+archive_file() {
+    local f=$1
+
+    if [ -e $CONF_PREFIX/$f ]; then
+        echo "Archiving configuration file $CONF_PREFIX/$f" >&2
+        mv $CONF_PREFIX/$f $CONF_PREFIX/$f.bak
+    fi
+}
 
 # Archive existing heat-api* config files in preparation
 # for change to heat-api-cfn*, and future use of heat-api*
-# the OpenStack API
+# for the OpenStack API.
-for ext in '.conf' '-paste.ini'; do
+archive_file etc/heat/heat-api.conf
-    heat_api_file="${CONF_DIR}/heat-api${ext}"
+archive_file etc/heat/heat-api-paste.ini
-    if [ -e ${heat_api_file} ]; then
-        echo "archiving configuration file ${heat_api_file}"
-        mv $heat_api_file ${heat_api_file}.bak
-    fi
-done
 
-for f in *
+
-do
+install_dir() {
+    local dir=$1
+    local prefix=$2
+
+    for fn in $(ls $dir); do
+        f=$dir/$fn
         if [ -d $f ]; then
-        # ignore directories
+            [ -d $prefix/$f ] || install -d $prefix/$f
-        continue
+            install_dir $f $prefix
-    elif [ -f $CONF_DIR/$f ]; then
+        elif [ -f $prefix/$f ]; then
-        echo "not copying over $CONF_DIR/$f"
+            echo "NOT replacing existing config file $prefix/$f" >&2
-        diff -u $CONF_DIR/$f $f
+            diff -u $prefix/$f $f
-    elif [ $f = 'heat-engine.conf' ]; then
+        elif [ $fn = 'heat-engine.conf' ]; then
-	cat $f | sed s/%ENCRYPTION_KEY%/`hexdump -n 16 -v -e '/1 "%02x"' /dev/random`/ > $CONF_DIR/$f
+            cat $f | sed s/%ENCRYPTION_KEY%/`hexdump -n 16 -v -e '/1 "%02x"' /dev/random`/ > $prefix/$f
         else
-        cp $f $CONF_DIR
+
+            echo "Installing $fn in $prefix/$dir" >&2
+            install -m 664 $f $prefix/$dir
         fi
     done
-popd > /dev/null
+}
+
+install_dir etc $CONF_PREFIX
+
 
 ./setup.py install >/dev/null
 rm -rf build heat.egg-info
-