Refactor ccache config to use per-os ccache dirs.

- Simplify ccache state output to console log by
  using ccache stats command.
- Bump max size of ccache dir to 10G (centos8 is
  approximately 5.7G)
- Clean up extraneous ccache dir after docker build
  is complete.

Change-Id: Ia2b55b7cd47212fce91b4567d0cca69d2ce892ed
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>

1 files changed, 11 insertions, 17 deletions

diff --git a/jjb/scripts/setup_executor_env.sh b/jjb/scripts/setup_executor_env.sh
index f9aecfa4..a6b8216d 100755
--- a/jjb/scripts/setup_executor_env.sh
+++ b/jjb/scripts/setup_executor_env.sh
@@ -61,25 +61,19 @@ echo "$long_line"
 echo "DNS nameserver config in '/etc/resolv.conf':"
 cat /etc/resolv.conf || true
 
-if [ -n "${CCACHE_DIR:-}" ] ; then
-    echo "$long_line"
-    if [ -d "$CCACHE_DIR" ] ; then
-        num_ccache_files="$(find $CCACHE_DIR -type f | wc -l)"
-        ccache_conf="$CCACHE_DIR/ccache.conf"
-        echo "CCACHE_DIR='$CCACHE_DIR' ($num_ccache_files ccache files):"
-        du -sh /tmp/ccache
-        df -h /tmp/ccache
-        ls -l $CCACHE_DIR
-        unset -v CCACHE_DISABLE
-        if [ -f "$ccache_conf" ] ; then
-            echo "Contents of $ccache_conf:"
-            cat $ccache_conf
-        fi
-    else
+echo "$long_line"
+if [ -n "$(which ccache || true)" ] ; then
+    if  [ -z "${CCACHE_DIR:-}" ] || [ ! -d "$CCACHE_DIR" ] ; then
         echo "CCACHE_DIR='$CCACHE_DIR' is missing, disabling CCACHE..."
-        unset -v CCACHE_DIR
         export CCACHE_DISABLE="1"
-        echo "CCACHE_DISABLE='${CCACHE_DISABLE:-}'"
     fi
+    if [ -n "${CCACHE_DISABLE:-}" ] ; then
+        echo "CCACHE_DISABLE = '$CCACHE_DISABLE'"
+    fi
+    echo "ccache statistics:"
+    ccache -s
+else
+    echo "WARNING: ccache is not installed!"
+    export CCACHE_DISABLE="1"
 fi
 echo "$long_line"