Only enable uvision postbuild when in a non-zipped exported project.

Projects that are zipped are typically from the online compiler or they
are meant to be used in a separate environment. Since the postbuild
script requires the Mbed OS tools to present in the project, we will
disable the postbuild script when the project is exported to a zipped
project.

tools/export/__init__.py

@@ -136,7 +136,7 @@ def get_exporter_toolchain(ide):
 
 
 def generate_project_files(resources, export_path, target, name, toolchain, ide,
-                           macros=None):
+                           zip, macros=None):
     """Generate the project files for a project
 
     Positional arguments:
@@ -147,13 +147,14 @@ def generate_project_files(resources, export_path, target, name, toolchain, ide,
     toolchain - a toolchain class that corresponds to the toolchain used by the
       IDE or makefile
     ide - IDE name to export to
+    zip - True if the exported project will be zipped
 
     Optional arguments:
     macros - additional macros that should be defined within the exported
       project
     """
     exporter_cls, _ = get_exporter_toolchain(ide)
-    exporter = exporter_cls(target, export_path, name, toolchain,
+    exporter = exporter_cls(target, export_path, name, toolchain, zip,
                             extra_symbols=macros, resources=resources)
     exporter.generate()
     files = exporter.generated_files
@@ -278,9 +279,9 @@ def export_project(src_paths, export_path, target, ide, libraries_paths=None,
     if toolchain.config.name:
         name = toolchain.config.name
 
-    files, exporter = generate_project_files(resources, export_path,
-                                             target, name, toolchain, ide,
-                                             macros=macros)
+    files, exporter = generate_project_files(
+        resources, export_path, target, name, toolchain, ide, zip_proj, macros=macros
+    )
     if zip_proj:
         resources.add_features(ALLOWED_FEATURES)
         if isinstance(zip_proj, basestring):

tools/export/exporters.py

@@ -73,7 +73,7 @@ class Exporter(object):
     CLEAN_FILES = ("GettingStarted.html",)
 
 
-    def __init__(self, target, export_dir, project_name, toolchain,
+    def __init__(self, target, export_dir, project_name, toolchain, zip,
                  extra_symbols=None, resources=None):
         """Initialize an instance of class exporter
         Positional arguments:
@@ -81,6 +81,7 @@ class Exporter(object):
         export_dir    - the directory of the exported project files
         project_name  - the name of the project
         toolchain     - an instance of class toolchain
+        zip           - True if the exported project will be zipped
 
         Keyword arguments:
         extra_symbols - a list of extra macros for the toolchain
@@ -94,6 +95,7 @@ class Exporter(object):
         self.jinja_environment = Environment(loader=jinja_loader)
         resources.win_to_unix()
         self.resources = resources
+        self.zip = zip
         self.generated_files = []
         getting_started_name = "GettingStarted.html"
         dot_mbed_name = ".mbed"

tools/export/uvision/__init__.py

@@ -2,7 +2,7 @@ from __future__ import print_function, absolute_import
 from builtins import str
 
 import os
-from os.path import normpath, exists, dirname, join, abspath
+from os.path import normpath, exists, dirname, join, abspath, relpath
 import ntpath
 import copy
 from collections import namedtuple
@@ -247,7 +247,7 @@ class Uvision(Exporter):
             'postbuild_step_active': 0,
         }
 
-        if self.toolchain.config.has_regions:
+        if self.toolchain.config.has_regions and not self.zip:
             # Serialize region information
             export_info = {}
             restrict_size = getattr(self.toolchain.config.target, "restrict_size")
@@ -262,8 +262,9 @@ class Uvision(Exporter):
                 r._replace(filename=binary_path) if r.active else r for r in region_list
             ]
             # Enable the post build step
+            postbuild_script_path = join(relpath(dirname(__file__)), "postbuild.py")
             ctx['postbuild_step'] = (
-                'python mbed-os/tools/export/uvision/postbuild.py "$K\\" "#L"'
+                'python {} "$K\\" "#L"'.format(postbuild_script_path)
             )
             ctx['postbuild_step_active'] = 1
             ctx['export_info'] = json.dumps(export_info, indent=4)