Fix "OSError: [Errno 2] No such file or directory" when PlatformIO isn't installed properly

HISTORY.rst

@@ -1,6 +1,14 @@
 Release History
 ===============
 
+0.9.1 (2014-12-03)
+------------------
+
+* Fixed "*OSError: [Errno 2] No such file or directory*" when PlatformIO isn't
+  installed properly
+* Fixed example for `Eclipse IDE with Tiva board <https://github.com/ivankravets/platformio/tree/develop/examples/ide-eclipse>`_
+  (`issue #32 <https://github.com/ivankravets/platformio/issues/32>`_)
+
 0.9.0 (2014-12-01)
 ------------------
 

platformio/commands/init.py

@@ -29,7 +29,7 @@ def cli(project_dir):
         click.secho(
             "will be used for the new project.\n"
             "You can specify another project directory via\n"
-            "`platformio init -d %PATH_TO_PROJECT_DIR%` command.\n",
+            "`platformio init -d %PATH_TO_THE_PROJECT_DIR%` command.\n",
             fg="yellow"
         )
 

platformio/exception.py

@@ -26,7 +26,8 @@ class PlatformNotInstalledYet(PlatformioException):
 
 class UnknownCLICommand(PlatformioException):
 
-    MESSAGE = "Unknown command '%s'"
+    MESSAGE = ("Unknown command '%s'. Please use `platformio --help`"
+               " to see all available commands")
 
 
 class UnknownPackage(PlatformioException):
@@ -144,3 +145,12 @@ class InvalidSettingValue(PlatformioException):
 class UpgraderFailed(PlatformioException):
 
     MESSAGE = "An error occurred while upgrading PlatformIO"
+
+
+class SConsNotInstalled(PlatformioException):
+
+    MESSAGE = (
+        "The `scons` tool isn't installed properly. "
+        "Please use official installation procedure: "
+        "http://docs.platformio.ikravets.com/en/latest/installation.html"
+    )

platformio/platforms/base.py

@@ -5,9 +5,8 @@ from imp import load_source
 from os import listdir
 from os.path import isdir, isfile, join
 
+from platformio import exception
 from platformio.app import get_state_item, set_state_item
-from platformio.exception import (BuildScriptNotFound, PlatformNotInstalledYet,
-                                  UnknownPackage, UnknownPlatform)
 from platformio.pkgmanager import PackageManager
 from platformio.util import exec_command, get_home_dir, get_source_dir
 
@@ -25,7 +24,7 @@ class PlatformFactory(object):
             module = load_source(
                 "platformio.platforms.%s" % name, path)
         except ImportError:
-            raise UnknownPlatform(name)
+            raise exception.UnknownPlatform(name)
         return module
 
     @classmethod
@@ -47,7 +46,7 @@ class PlatformFactory(object):
                     )
                     if isplatform:
                         platforms[name] = path
-                except UnknownPlatform:
+                except exception.UnknownPlatform:
                     pass
 
         if not installed:
@@ -63,7 +62,7 @@ class PlatformFactory(object):
     def newPlatform(cls, name):
         platforms = cls.get_platforms()
         if name not in platforms:
-            raise UnknownPlatform(name)
+            raise exception.UnknownPlatform(name)
 
         _instance = getattr(
             cls.load_module(name, platforms[name]),
@@ -123,7 +122,7 @@ class BasePlatform(object):
         upkgs = with_packages | without_packages
         ppkgs = set(self.get_packages().keys())
         if not upkgs.issubset(ppkgs):
-            raise UnknownPackage(", ".join(upkgs - ppkgs))
+            raise exception.UnknownPackage(", ".join(upkgs - ppkgs))
 
         requirements = []
         for name, opts in self.get_packages().items():
@@ -151,7 +150,7 @@ class BasePlatform(object):
             installed=True).keys()
 
         if platform not in installed_platforms:
-            raise PlatformNotInstalledYet(platform)
+            raise exception.PlatformNotInstalledYet(platform)
 
         deppkgs = set()
         for item in installed_platforms:
@@ -191,7 +190,7 @@ class BasePlatform(object):
         installed_packages = PackageManager.get_installed()
 
         if self.get_name() not in installed_platforms:
-            raise PlatformNotInstalledYet(self.get_name())
+            raise exception.PlatformNotInstalledYet(self.get_name())
 
         if "clean" in targets:
             targets.remove("clean")
@@ -205,20 +204,23 @@ class BasePlatform(object):
                 continue
             _, path = v.split("=", 2)
             if not isfile(path):
-                raise BuildScriptNotFound(path)
+                raise exception.BuildScriptNotFound(path)
 
-        # append aliases of installed packages
+        # append aliases of the installed packages
         for name, options in self.get_packages().items():
             if name not in installed_packages:
                 continue
             variables.append(
                 "PIOPACKAGE_%s=%s" % (options['alias'].upper(), name))
 
-        result = exec_command([
-            "scons",
-            "-Q",
-            "-f", join(get_source_dir(), "builder", "main.py")
-        ] + variables + targets)
+        try:
+            result = exec_command([
+                "scons",
+                "-Q",
+                "-f", join(get_source_dir(), "builder", "main.py")
+            ] + variables + targets)
+        except OSError:
+            raise exception.SConsNotInstalled()
 
         return self.after_run(result)