Implement prerequisites auto-update.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com

Makefile

@@ -308,14 +308,10 @@ clean:
 	$(Q) rm -rf $(BUILD_DIR_PREFIX)* $(OUT_DIR)
 
 .PHONY: prerequisites
-prerequisites: $(PREREQUISITES_STATE_DIR)/.prerequisites
+prerequisites:
-
-$(PREREQUISITES_STATE_DIR)/.prerequisites:
-	@ echo "Setting up prerequisites... (log file: $(PREREQUISITES_STATE_DIR)/prerequisites.log)"
 	$(Q) mkdir -p $(PREREQUISITES_STATE_DIR)
 	$(Q) (./tools/prerequisites.sh $(PREREQUISITES_STATE_DIR)/.prerequisites 2>&1 | tee $(PREREQUISITES_STATE_DIR)/prerequisites.log $(QLOG) ; ( exit $${PIPESTATUS[0]} ) ) || \
           (echo "Prerequisites setup failed. See $(PREREQUISITES_STATE_DIR)/prerequisites.log for details."; exit 1;)
-	@ echo "Prerequisites setup succeeded"
 
 .PHONY: prerequisites_clean
 prerequisites_clean:

tools/prerequisites.sh

@@ -14,11 +14,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FLAG_FILE="$1"
+PREREQUISITES_INSTALLED_LIST_FILE="$1"
 shift
 
-rm -f $FLAG_FILE
-
 if [ "$1" == "clean" ]
 then
   CLEAN_MODE=yes
@@ -66,6 +64,14 @@ function setup_from_zip() {
 
   FAIL_MSG="Failed to setup '$NAME' prerequisite"
 
+  if [ "$CLEAN_MODE" == "no" ]
+  then
+    echo "$CHECKSUM $NAME" >> $TMP_DIR/.prerequisites
+    grep -q "^$CHECKSUM $NAME\$" $TMP_DIR/.prerequisites.prev && return 0
+
+    echo "Setting up $NAME prerequisite"
+  fi
+
   if [ -e "$DEST" ]
   then
     chmod -R u+w "$DEST" || fail_msg "$FAIL_MSG. Failed to add write permission to '$DEST' directory contents."
@@ -108,6 +114,14 @@ function setup_cppcheck() {
 
   FAIL_MSG="Failed to setup '$NAME' prerequisite"
 
+  if [ "$CLEAN_MODE" == "no" ]
+  then
+    echo "$CHECKSUM $NAME" >> $TMP_DIR/.prerequisites
+    grep -q "^$CHECKSUM $NAME\$" $TMP_DIR/.prerequisites.prev && return 0
+
+    echo "Setting up $NAME prerequisite"
+  fi
+
   if [ -e "$DEST" ]
   then
     chmod -R u+w "$DEST" || fail_msg "$FAIL_MSG. Failed to add write permission to '$DEST' directory contents."
@@ -155,6 +169,14 @@ function setup_vera() {
 
   FAIL_MSG="Failed to setup '$NAME' prerequisite"
 
+  if [ "$CLEAN_MODE" == "no" ]
+  then
+    echo "$CHECKSUM $NAME" >> $TMP_DIR/.prerequisites
+    grep -q "^$CHECKSUM $NAME\$" $TMP_DIR/.prerequisites.prev && return 0
+
+    echo "Setting up $NAME prerequisite"
+  fi
+
   if [ -e "$DEST" ]
   then
     chmod -R u+w "$DEST" || fail_msg "$FAIL_MSG. Failed to add write permission to '$DEST' directory contents."
@@ -187,6 +209,14 @@ function setup_vera() {
 
 TMP_DIR=`mktemp -d --tmpdir=./`
 
+if [ "$CLEAN_MODE" == "yes" ]
+then
+  rm -f $PREREQUISITES_INSTALLED_LIST_FILE
+else
+  touch $PREREQUISITES_INSTALLED_LIST_FILE || fail_msg "Failed to create '$PREREQUISITES_INSTALLED_LIST_FILE'."
+  mv $PREREQUISITES_INSTALLED_LIST_FILE $TMP_DIR/.prerequisites.prev
+fi
+
 setup_from_zip "stm32f3" \
                "./third-party/STM32F3-Discovery_FW_V1.1.0" \
                "http://www.st.com/st-web-ui/static/active/en/st_prod_software_internet/resource/technical/software/firmware/stm32f3discovery_fw.zip" \
@@ -211,7 +241,7 @@ setup_vera "vera++-1.2.1" \
 
 if [ "$CLEAN_MODE" == "no" ]
 then
-  touch $FLAG_FILE || fail_msg "Failed to create flag file '$FLAG_FILE'."
+  mv $TMP_DIR/.prerequisites $PREREQUISITES_INSTALLED_LIST_FILE || fail_msg "Failed to write '$PREREQUISITES_INSTALLED_LIST_FILE'"
 fi
 
 clean_on_exit "OK"