support minimal runphp

dk

@@ -2099,8 +2099,10 @@ function auto_composer() {
         esac
     done
 
-    local use_image
-    if [ "$COMPOSER_PHP" == force -o "$COMPOSER_PHP" == any ]; then
+    local use_runphp use_image
+    if [ "$COMPOSER_PHP" == runphp ]; then
+        use_runphp=1
+    elif [ "$COMPOSER_PHP" == force -o "$COMPOSER_PHP" == any ]; then
         use_image=1
     elif [ "$COMPOSER_PHP" == none -o "$COMPOSER_PHP" == system ]; then
         COMPOSER_PHP=none
@@ -2121,7 +2123,7 @@ exit((PHP_VERSION_ID > $version)? 0: 1);
         *) ewarn "Erreur lors du lancement de PHP: est-il installé? Vous pouvez utiliser COMPOSER_PHP=any";;
         esac
     fi
-    if [ -n "$use_image" -o "$COMPOSER_PHP" == none ]; then
+    if [ -n "$use_runphp" -o -n "$use_image" -o "$COMPOSER_PHP" == none ]; then
         : # ok, on a déjà décidé
     elif [ -z "$COMPOSER_PHP" ]; then
         # pas de version minimum, tester simplement la valeur de COMPOSER_IMAGE
@@ -2143,7 +2145,23 @@ exit((PHP_VERSION_ID < $version)? 0: 1);
         esac
     fi
 
-    if [ -n "$use_image" ]; then
+    if [ -n "$use_runphp" ]; then
+        (
+            export PROJDIR="$(pwd)"
+            export RUNPHP_STANDALONE=
+            RUNPHP=; DIST=; REGISTRY=
+            if [ -f "$PROJDIR/.runphp.conf" ]; then
+                source "$PROJDIR/.runphp.conf"
+                [ -n "$RUNPHP" ] && exec "$PROJDIR/$RUNPHP" composer "$@"
+            elif [ -f "$PROJDIR/sbin/runphp" ]; then
+                exec "$PROJDIR/sbin/runphp" composer "$@"
+            elif [ -f "$PROJDIR/runphp" ]; then
+                exec "$PROJDIR/runphp" composer "$@"
+            fi
+            exec runphp composer "$@"
+        )
+
+    elif [ -n "$use_image" ]; then
         [ "$COMPOSER_IMAGE" != none ] || die "Vous devez spécifier l'image à utiliser pour composer"
 
         local PREVIOUS_DOCKER_MACHINE_NAME="$DOCKER_MACHINE_NAME"