Tests: Support passing a custom config.cache to test builds (#570)

usage:

    $ cache_file=/tmp/custom-config.cache ./test-builds.sh \
        --aggressively-use-config-cache \
        --config-cache-file=somefile.ccache
    Already bootstrapped, skipping step
    TESTING: layer-00-default

diff --git a/test-builds.sh b/test-builds.sh
index c9e68ab94a23929f515261a26660e1897a2ce65d..27defc7551e5d32c4db3a50190fe70862cc8ffed 100755 (executable)
--- a/test-builds.sh
+++ b/test-builds.sh
@@ -39,18 +39,24 @@ while [ $# -ge 1 ]; do
        ;;
     --use-config-cache)
         #environment variable will be picked up by buildtest.sh
-        cache_file=/tmp/config.cache.$$
+        cache_file=${cache_file:-/tmp/config.cache.$$}
         export cache_file
         shift
         ;;
     --aggressively-use-config-cache)
         #environment variable will be picked up by buildtest.sh
         #note: use ONLY if you know what you're doing
-        cache_file=/tmp/config.cache
+        cache_file=${cache_file:-/tmp/config.cache}
         remove_cache_file="false"
         export cache_file
         shift
         ;;
+    --config-cache-file)
+        cache_file="$2"
+        remove_cache_file="false"
+        export cache_file
+        shift 2
+        ;;
     *)
        break
        ;;