Extracted common portions of generic-* files into common.sh, made it …

…docker+podman compatible

common.sh

@@ -0,0 +1,25 @@
+detect_docker()
+{
+	if docker --version >/dev/null 2>/dev/null; then
+		DOCKER_BIN=docker
+	elif podman --version >/dev/null 2>/dev/null; then
+		DOCKER_BIN=podman
+		EXTRA_OPTS='--security-opt label=disable'
+	else
+		echo "ERROR: Docker or Podman binary not found."
+		exit 1
+	fi
+}
+
+# Determine image name from current working directory
+derive_img_name()
+{
+	local ALL=$(pwd | sed 's,^.*/src/,,')
+	local TARGET=$(echo "$ALL" | cut -d/ -f1)
+	local REST=$(echo "$ALL" | cut -d/ -f2)
+
+	IMG_NAME="kaitai-$TARGET-$REST"
+}
+
+detect_docker
+derive_img_name

src/generic-build

@@ -12,11 +12,7 @@ if [ ! -f ../../../LICENSE ]; then
 	exit 1
 fi
 
-ALL=$(pwd | sed 's,^.*/src/,,')
-TARGET=$(echo "$ALL" | cut -d/ -f1)
-REST=$(echo "$ALL" | cut -d/ -f2)
-
-IMG_NAME="kaitai-$TARGET-$REST"
+. ../../../common.sh
 
 mkdir -p 4img
 rsync -av ../../_common/ 4img
@@ -29,4 +25,4 @@ if [ -f prebuild ]; then
 	. ./prebuild
 fi
 
-docker build -t "$IMG_NAME" --label io.kaitai.ci=true .
+"$DOCKER_BIN" $EXTRA_ARGS build -t "$IMG_NAME" --label io.kaitai.ci=true .

src/generic-run-it

@@ -8,11 +8,6 @@ if [ ! -f ../../../LICENSE ]; then
 	exit 1
 fi
 
-ALL=$(pwd | sed 's,^.*/src/,,')
-TARGET=$(echo "$ALL" | cut -d/ -f1)
-REST=$(echo "$ALL" | cut -d/ -f2)
+. ../../../common.sh
 
-# Determine image name from determined location
-IMG_NAME="kaitai-$TARGET-$REST"
-
-docker run --rm -it "$IMG_NAME" /bin/sh
+"$DOCKER_BIN" $EXTRA_ARGS run --rm -it "$IMG_NAME" /bin/sh