Revise checking toolchain path

tools/build.py

@@ -27,7 +27,7 @@
 sys.path.insert(0, ROOT)
 
 
-from tools.toolchains import TOOLCHAINS
+from tools.toolchains import TOOLCHAINS, TOOLCHAIN_CLASSES, TOOLCHAIN_PATHS
 from tools.toolchains import mbedToolchain
 from tools.targets import TARGET_NAMES, TARGET_MAP
 from tools.options import get_default_options_parser
@@ -161,6 +161,7 @@
         print mcu_toolchain_matrix(platform_filter=options.general_filter_regex)
         exit(0)
 
+
     # Get target list
     targets = options.mcu if options.mcu else TARGET_NAMES
 
@@ -212,6 +213,11 @@
     # CPPCHECK code validation
     if options.cppcheck_validation:
         for toolchain in toolchains:
+            if not TOOLCHAIN_CLASSES[toolchain].check_executable():
+                search_path = TOOLCHAIN_PATHS[toolchain] or "No path set"
+                args_error(parser, "Could not find executable for %s.\n"
+                                   "Currently set search path: %s"
+                           % (toolchain, search_path))
             for target in targets:
                 try:
                     mcu = TARGET_MAP[target]

tools/make.py

@@ -21,7 +21,7 @@
 import sys
 from time import sleep
 from shutil import copy
-from os.path import join, abspath, dirname, isfile, isdir
+from os.path import join, abspath, dirname
 
 # Be sure that the tools directory is in the search path
 ROOT = abspath(join(dirname(__file__), ".."))
@@ -46,8 +46,7 @@
 from utils import argparse_filestring_type
 from utils import argparse_many
 from utils import argparse_dir_not_parent
-from argparse import ArgumentTypeError
-from tools.toolchains import mbedToolchain
+from tools.toolchains import mbedToolchain, TOOLCHAIN_CLASSES, TOOLCHAIN_PATHS
 from tools.settings import CLI_COLOR_MAP
 
 if __name__ == '__main__':
@@ -232,6 +231,12 @@
     else:
         notify = None
 
+    if not TOOLCHAIN_CLASSES[toolchain].check_executable():
+        search_path = TOOLCHAIN_PATHS[toolchain] or "No path set"
+        args_error(parser, "Could not find executable for %s.\n"
+                           "Currently set search path: %s"
+                           %(toolchain,search_path))
+
     # Test
     for test_no in p:
         test = Test(test_no)

tools/test.py

@@ -35,7 +35,7 @@
 from tools.test_exporters import ReportExporter, ResultExporterType
 from utils import argparse_filestring_type, argparse_lowercase_type, argparse_many
 from utils import argparse_dir_not_parent
-from tools.toolchains import mbedToolchain
+from tools.toolchains import mbedToolchain, TOOLCHAIN_PATHS, TOOLCHAIN_CLASSES
 from tools.settings import CLI_COLOR_MAP
 
 if __name__ == '__main__':
@@ -115,6 +115,12 @@
             args_error(parser, "argument -t/--tool is required")
         toolchain = options.tool[0]
 
+        if not TOOLCHAIN_CLASSES[toolchain].check_executable():
+            search_path = TOOLCHAIN_PATHS[toolchain] or "No path set"
+            args_error(parser, "Could not find executable for %s.\n"
+                               "Currently set search path: %s"
+                       % (toolchain, search_path))
+
         # Find all tests in the relevant paths
         for path in all_paths:
             all_tests.update(find_tests(path, mcu, toolchain, options.options,
@@ -196,6 +202,7 @@
                 print "Failed to build library"
             else:
                 # Build all the tests
+
                 test_build_success, test_build = build_tests(tests, [options.build_dir], options.build_dir, mcu, toolchain,
                         options=options.options,
                         clean=options.clean,

tools/toolchains/__init__.py

@@ -27,6 +27,7 @@
 from copy import deepcopy
 from tools.config import Config
 from abc import ABCMeta, abstractmethod
+from distutils.spawn import find_executable
 
 from multiprocessing import Pool, cpu_count
 from tools.utils import run_cmd, mkdir, rel_path, ToolException, NotSupportedException, split_path, compile_worker
@@ -188,23 +189,6 @@ def __str__(self):
 }
 
 
-def check_toolchain_path(function):
-    """Check if the path to toolchain is valid. Exit if not.
-    Use this function as a decorator.  Causes a system exit if the path does
-    not exist. Execute the function as normal if the path does exist.
-
-    Positional arguments:
-    function -- the function to decorate
-    """
-    def perform_check(self, *args, **kwargs):
-        if not exists(self.toolchain_path) and not exists(self.toolchain_path+'.exe'):
-            error_string = 'Could not find executable for %s.\n Currently ' \
-                           'set search path: %s'% (self.name, self.toolchain_path)
-            raise Exception(error_string)
-        return function(self, *args, **kwargs)
-    return perform_check
-
-
 class mbedToolchain:
     # Verbose logging
     VERBOSE = True
@@ -720,7 +704,6 @@ def get_arch_file(self, objects):
 
     # THIS METHOD IS BEING CALLED BY THE MBED ONLINE BUILD SYSTEM
     # ANY CHANGE OF PARAMETERS OR RETURN VALUES WILL BREAK COMPATIBILITY
-    @check_toolchain_path
     def compile_sources(self, resources, build_path, inc_dirs=None):
         # Web IDE progress bar for project build
         files_to_compile = resources.s_sources + resources.c_sources + resources.cpp_sources
@@ -919,7 +902,6 @@ def compile_output(self, output=[]):
             else:
                 raise ToolException(_stderr)
 
-    @check_toolchain_path
     def build_library(self, objects, dir, name):
         needed_update = False
         lib = self.STD_LIB_NAME % name
@@ -931,7 +913,6 @@ def build_library(self, objects, dir, name):
 
         return needed_update
 
-    @check_toolchain_path
     def link_program(self, r, tmp_path, name):
         needed_update = False
         ext = 'bin'
@@ -1111,6 +1092,51 @@ def get_config_header(self):
         self.config_processed = True
         return self.config_file
 
+    @staticmethod
+    def generic_check_executable(tool_key, executable_name, levels_up,
+                                 nested_dir=None):
+        """
+        Positional args:
+        tool_key: the key to index TOOLCHAIN_PATHS
+        executable_name: the toolchain's named executable (ex. armcc)
+        levels_up: each toolchain joins the toolchain_path, some
+        variable directories (bin, include), and the executable name,
+        so the TOOLCHAIN_PATH value must be appropriately distanced
+
+        Keyword args:
+        nested_dir: the directory within TOOLCHAIN_PATHS where the executable
+          is found (ex: 'bin' for ARM\bin\armcc (necessary to check for path
+          that will be used by toolchain's compile)
+
+        Returns True if the executable location specified by the user
+        exists and is valid OR the executable can be found on the PATH.
+        Returns False otherwise.
+        """
+        # Search PATH if user did not specify a path or specified path doesn't
+        # exist.
+        if not TOOLCHAIN_PATHS[tool_key] or not exists(TOOLCHAIN_PATHS[tool_key]):
+            exe = find_executable(executable_name)
+            if not exe:
+                return False
+            for level in range(levels_up):
+                # move up the specified number of directories
+                exe = dirname(exe)
+            TOOLCHAIN_PATHS[tool_key] = exe
+        if nested_dir:
+            subdir = join(TOOLCHAIN_PATHS[tool_key], nested_dir,
+                          executable_name)
+        else:
+            subdir = join(TOOLCHAIN_PATHS[tool_key],executable_name)
+        # User could have specified a path that exists but does not contain exe
+        return exists(subdir) or exists(subdir +'.exe')
+
+    @abstractmethod
+    def check_executable(self):
+        """Returns True if the executable (armcc) location specified by the
+         user exists OR the executable can be found on the PATH.
+         Returns False otherwise."""
+        raise NotImplemented
+
     @abstractmethod
     def get_config_option(self, config_header):
         """Generate the compiler option that forces the inclusion of the configuration

tools/toolchains/arm.py

@@ -16,7 +16,6 @@
 """
 import re
 from os.path import join, dirname, splitext, basename
-from distutils.spawn import find_executable
 
 from tools.toolchains import mbedToolchain, TOOLCHAIN_PATHS
 from tools.hooks import hook_tool
@@ -42,6 +41,13 @@ class ARM(mbedToolchain):
         'ld': [],
     }
 
+    @staticmethod
+    def check_executable():
+        """Returns True if the executable (armcc) location specified by the
+         user exists OR the executable can be found on the PATH.
+         Returns False otherwise."""
+        return mbedToolchain.generic_check_executable("ARM", 'armcc', 2, 'bin')
+
     def __init__(self, target, options=None, notify=None, macros=None, silent=False, extra_verbose=False):
         mbedToolchain.__init__(self, target, options, notify, macros, silent, extra_verbose=extra_verbose)
 
@@ -56,11 +62,6 @@ def __init__(self, target, options=None, notify=None, macros=None, silent=False,
         else:
             cpu = target.core
 
-        if not TOOLCHAIN_PATHS['ARM']:
-            exe = find_executable('armcc')
-            if exe:
-                TOOLCHAIN_PATHS['ARM'] = dirname(dirname(exe))
-
         ARM_BIN = join(TOOLCHAIN_PATHS['ARM'], "bin")
         ARM_INC = join(TOOLCHAIN_PATHS['ARM'], "include")
 
@@ -86,8 +87,6 @@ def __init__(self, target, options=None, notify=None, macros=None, silent=False,
         self.ar = join(ARM_BIN, "armar")
         self.elf2bin = join(ARM_BIN, "fromelf")
 
-        self.toolchain_path = TOOLCHAIN_PATHS['ARM']
-
     def parse_dependencies(self, dep_path):
         dependencies = []
         for line in open(dep_path).readlines():

tools/toolchains/gcc.py

@@ -15,8 +15,7 @@
 limitations under the License.
 """
 import re
-from os.path import join, basename, splitext, dirname, exists
-from distutils.spawn import find_executable
+from os.path import join, basename, splitext
 
 from tools.toolchains import mbedToolchain, TOOLCHAIN_PATHS
 from tools.hooks import hook_tool
@@ -111,11 +110,6 @@ def __init__(self, target, options=None, notify=None, macros=None, silent=False,
         self.ar = join(tool_path, "arm-none-eabi-ar")
         self.elf2bin = join(tool_path, "arm-none-eabi-objcopy")
 
-        if tool_path:
-            self.toolchain_path = main_cc
-        else:
-            self.toolchain_path = find_executable("arm-none-eabi-gcc") or ''
-
     def parse_dependencies(self, dep_path):
         dependencies = []
         buff = open(dep_path).readlines()
@@ -275,6 +269,13 @@ def binary(self, resources, elf, bin):
 
 
 class GCC_ARM(GCC):
+    @staticmethod
+    def check_executable():
+        """Returns True if the executable (arm-none-eabi-gcc) location
+        specified by the user exists OR the executable can be found on the PATH.
+        Returns False otherwise."""
+        return mbedToolchain.generic_check_executable("GCC_ARM", 'arm-none-eabi-gcc', 1)
+
     def __init__(self, target, options=None, notify=None, macros=None, silent=False, extra_verbose=False):
         GCC.__init__(self, target, options, notify, macros, silent, TOOLCHAIN_PATHS['GCC_ARM'], extra_verbose=extra_verbose)
 
@@ -300,6 +301,13 @@ def __init__(self, target, options=None, notify=None, macros=None, silent=False,
 
 
 class GCC_CR(GCC):
+    @staticmethod
+    def check_executable():
+        """Returns True if the executable (arm-none-eabi-gcc) location
+        specified by the user exists OR the executable can be found on the PATH.
+        Returns False otherwise."""
+        return mbedToolchain.generic_check_executable("GCC_CR", 'arm-none-eabi-gcc', 1)
+
     def __init__(self, target, options=None, notify=None, macros=None, silent=False, extra_verbose=False):
         GCC.__init__(self, target, options, notify, macros, silent, TOOLCHAIN_PATHS['GCC_CR'], extra_verbose=extra_verbose)
 

tools/toolchains/iar.py

@@ -16,8 +16,7 @@
 """
 import re
 from os import remove
-from os.path import join, exists, dirname, splitext, exists
-from distutils.spawn import find_executable
+from os.path import join, splitext
 
 from tools.toolchains import mbedToolchain, TOOLCHAIN_PATHS
 from tools.hooks import hook_tool
@@ -45,18 +44,20 @@ class IAR(mbedToolchain):
         'ld': ["--skip_dynamic_initialization", "--threaded_lib"],
     }
 
+    @staticmethod
+    def check_executable():
+        """Returns True if the executable (arm-none-eabi-gcc) location
+        specified by the user exists OR the executable can be found on the PATH.
+        Returns False otherwise."""
+        return mbedToolchain.generic_check_executable("IAR", 'iccarm', 2, "bin")
+
     def __init__(self, target, options=None, notify=None, macros=None, silent=False, extra_verbose=False):
         mbedToolchain.__init__(self, target, options, notify, macros, silent, extra_verbose=extra_verbose)
         if target.core == "Cortex-M7F" or target.core == "Cortex-M7FD":
             cpuchoice = "Cortex-M7"
         else:
             cpuchoice = target.core
 
-        if not TOOLCHAIN_PATHS['IAR']:
-            exe =  find_executable('iccarm')
-            if exe:
-                TOOLCHAIN_PATHS['IAR'] = dirname(dirname(exe))
-
         # flags_cmd are used only by our scripts, the project files have them already defined,
         # using this flags results in the errors (duplication)
         # asm accepts --cpu Core or --fpu FPU, not like c/c++ --cpu=Core
@@ -108,8 +109,6 @@ def __init__(self, target, options=None, notify=None, macros=None, silent=False,
         self.ar = join(IAR_BIN, "iarchive")
         self.elf2bin = join(IAR_BIN, "ielftool")
 
-        self.toolchain_path = TOOLCHAIN_PATHS['IAR']
-
     def parse_dependencies(self, dep_path):
         return [(self.CHROOT if self.CHROOT else '')+path.strip() for path in open(dep_path).readlines()
                 if (path and not path.isspace())]