Generate exporter suppored lists when needed

tools/export/__init__.py

@@ -103,7 +103,7 @@ def mcu_ide_matrix(verbose_html=False):
         row = [target]  # First column is platform name
         for ide in supported_ides:
             text = "-"
-            if target in EXPORTERS[ide].TARGETS:
+            if EXPORTERS[ide].is_target_supported(target):
                 if verbose_html:
                     text = "✓"
                 else:

tools/export/cmsis/__init__.py

@@ -103,8 +103,11 @@ class DeviceCMSIS():
 class CMSIS(Exporter):
     NAME = 'cmsis'
     TOOLCHAIN = 'ARM'
-    TARGETS = [target for target, obj in TARGET_MAP.iteritems()
-               if "ARM" in obj.supported_toolchains]
+
+    @classmethod
+    def is_target_supported(cls, target_name):
+        target = TARGET_MAP[target_name]
+        return cls.TOOLCHAIN in target.supported_toolchains
 
     def make_key(self, src):
         """turn a source file into its group name"""

tools/export/embitz/__init__.py

@@ -16,7 +16,7 @@ limitations under the License.
 """
 from os.path import splitext, basename
 from tools.targets import TARGET_MAP
-from tools.export.exporters import Exporter, filter_supported
+from tools.export.exporters import Exporter, apply_supported_whitelist
 
 
 POST_BINARY_WHITELIST = set([
@@ -30,9 +30,6 @@ class EmBitz(Exporter):
     NAME = 'EmBitz'
     TOOLCHAIN = 'GCC_ARM'
 
-
-    TARGETS = filter_supported("GCC_ARM", POST_BINARY_WHITELIST)
-
     MBED_CONFIG_HEADER_SUPPORTED = True
 
     FILE_TYPES = {
@@ -42,6 +39,11 @@ class EmBitz(Exporter):
         'cpp_sources': 'cpp'
     }
 
+    @classmethod
+    def is_target_supported(cls, target_name):
+        target = TARGET_MAP[target_name]
+        return apply_supported_whitelist(
+            cls.TOOLCHAIN, POST_BINARY_WHITELIST, target)
 
     @staticmethod
     def _remove_symbols(sym_list):

tools/export/exporters.py

@@ -36,7 +36,7 @@ class Exporter(object):
     TEMPLATE_DIR = dirname(__file__)
     DOT_IN_RELATIVE_PATH = False
     NAME = None
-    TARGETS = None
+    TARGETS = set()
     TOOLCHAIN = None
 
 
@@ -178,19 +178,33 @@ class Exporter(object):
         """Generate an IDE/tool specific project file"""
         raise NotImplemented("Implement a generate function in Exporter child class")
 
+    @classmethod
+    def is_target_supported(cls, target_name):
+        """Query support for a particular target
 
-def filter_supported(compiler, whitelist):
+        NOTE: override this method if your exporter does not provide a static list of targets
+
+        Positional Arguments:
+        target_name - the name of the target.
+        """
+        target = TARGET_MAP[target_name]
+        return bool(set(target.resolution_order_names).intersection(set(cls.TARGETS))) \
+            and cls.TOOLCHAIN in target.supported_toolchains
+
+
+    @classmethod
+    def all_supported_targets(cls):
+        return [t for t in TARGET_MAP.keys() if cls.is_target_supported(t)]
+
+
+def apply_supported_whitelist(compiler, whitelist, target):
     """Generate a list of supported targets for a given compiler and post-binary hook
     white-list."""
-    def supported_p(obj):
-        """Internal inner function used for filtering"""
-        if compiler not in obj.supported_toolchains:
+    if compiler not in target.supported_toolchains:
         return False
-        if not hasattr(obj, "post_binary_hook"):
+    if not hasattr(target, "post_binary_hook"):
         return True
-        if obj.post_binary_hook['function'] in whitelist:
+    if target.post_binary_hook['function'] in whitelist:
         return True
     else:
         return False
-    return list(target for target, obj in TARGET_MAP.iteritems()
-                if supported_p(obj))

tools/export/gnuarmeclipse/__init__.py

@@ -33,7 +33,7 @@ from os.path import splitext, basename, relpath, dirname, exists, join, dirname
 from random import randint
 from json import load
 
-from tools.export.exporters import Exporter, filter_supported
+from tools.export.exporters import Exporter, apply_supported_whitelist
 from tools.options import list_profiles
 from tools.targets import TARGET_MAP
 from tools.utils import NotSupportedException
@@ -69,7 +69,11 @@ class GNUARMEclipse(Exporter):
     NAME = 'GNU ARM Eclipse'
     TOOLCHAIN = 'GCC_ARM'
 
-    TARGETS = filter_supported("GCC_ARM", POST_BINARY_WHITELIST)
+    @classmethod
+    def is_target_supported(cls, target_name):
+        target = TARGET_MAP[target_name]
+        return apply_supported_whitelist(
+            cls.TOOLCHAIN, POST_BINARY_WHITELIST, target)
 
     # override
     @property

tools/export/iar/__init__.py

@@ -30,15 +30,15 @@ _iar_defs = os.path.join(
 with open(_iar_defs, 'r') as f:
     _GUI_OPTIONS = json.load(f)
 
-_IAR_TARGETS = [target for target, obj in TARGET_MAP.iteritems() if
-                _supported(obj, _GUI_OPTIONS.keys())]
-
 
 class IAR(Exporter):
     NAME = 'iar'
     TOOLCHAIN = 'IAR'
 
-    TARGETS = _IAR_TARGETS
+    @classmethod
+    def is_target_supported(cls, target_name):
+        target = TARGET_MAP[target_name]
+        return _supported(target, _GUI_OPTIONS.keys())
 
 
     def iar_groups(self, grouped_src):

tools/export/makefile/__init__.py

@@ -21,7 +21,7 @@ import sys
 from subprocess import check_output, CalledProcessError, Popen, PIPE
 import shutil
 from jinja2.exceptions import TemplateNotFound
-from tools.export.exporters import Exporter, filter_supported
+from tools.export.exporters import Exporter, apply_supported_whitelist
 from tools.utils import NotSupportedException
 from tools.targets import TARGET_MAP
 
@@ -42,6 +42,12 @@ class Makefile(Exporter):
         "LPC4088Code.binary_hook"
     ])
 
+    @classmethod
+    def is_target_supported(cls, target_name):
+        target = TARGET_MAP[target_name]
+        return apply_supported_whitelist(
+            cls.TOOLCHAIN, cls.POST_BINARY_WHITELIST, target)
+
     def generate(self):
         """Generate the makefile
 
@@ -186,7 +192,6 @@ class Makefile(Exporter):
 
 class GccArm(Makefile):
     """GCC ARM specific makefile target"""
-    TARGETS = filter_supported("GCC_ARM", Makefile.POST_BINARY_WHITELIST)
     NAME = 'Make-GCC-ARM'
     TEMPLATE = 'make-gcc-arm'
     TOOLCHAIN = "GCC_ARM"
@@ -204,7 +209,6 @@ class GccArm(Makefile):
 
 class Armc5(Makefile):
     """ARM Compiler 5 specific makefile target"""
-    TARGETS = filter_supported("ARM", Makefile.POST_BINARY_WHITELIST)
     NAME = 'Make-ARMc5'
     TEMPLATE = 'make-armc5'
     TOOLCHAIN = "ARM"
@@ -222,7 +226,6 @@ class Armc5(Makefile):
 
 class IAR(Makefile):
     """IAR specific makefile target"""
-    TARGETS = filter_supported("IAR", Makefile.POST_BINARY_WHITELIST)
     NAME = 'Make-IAR'
     TEMPLATE = 'make-iar'
     TOOLCHAIN = "IAR"

tools/export/qtcreator/__init__.py

@@ -16,14 +16,11 @@ limitations under the License.
 """
 from os.path import splitext, basename
 from tools.targets import TARGET_MAP
-from tools.export.exporters import Exporter, filter_supported
+from tools.export.exporters import Exporter
 from tools.export.makefile import GccArm
 
 class QtCreator(GccArm):
     NAME = 'QtCreator'
-    TOOLCHAIN = 'GCC_ARM'
-
-    TARGETS = filter_supported("GCC_ARM", set())
 
     MBED_CONFIG_HEADER_SUPPORTED = True
 

tools/export/uvision/__init__.py

@@ -9,7 +9,7 @@ import re
 
 from tools.arm_pack_manager import Cache
 from tools.targets import TARGET_MAP
-from tools.export.exporters import Exporter, filter_supported
+from tools.export.exporters import Exporter, apply_supported_whitelist
 from tools.export.cmsis import DeviceCMSIS
 
 cache_d = False
@@ -129,8 +129,13 @@ class Uvision(Exporter):
         "MTSCode.combine_bins_mts_dragonfly",
         "NCS36510TargetCode.ncs36510_addfib"
     ])
-    TARGETS = [tgt for tgt in filter_supported("ARM", POST_BINARY_WHITELIST)
-               if DeviceCMSIS.check_supported(tgt)]
+
+    @classmethod
+    def is_target_supported(cls, target_name):
+        target = TARGET_MAP[target_name]
+        return apply_supported_whitelist(
+            cls.TOOLCHAIN, cls.POST_BINARY_WHITELIST, target) and\
+            DeviceCMSIS.check_supported(target_name)
 
     #File associations within .uvprojx file
     file_types = {'.cpp': 8, '.c': 1, '.s': 2,