Merge pull request #81 from pipermerriam/piper/handle-missing-librari…

…es-dir

Fixes #80 - missing libraries directory

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,15 @@
+* Populus Version: x.x.x
+* OS: osx/linux/win
+
+
+### What was wrong?
+
+Please include information like:
+
+* full output of the error you received
+* what command you ran
+* the code that caused the failure
+
+#### Cute Animal Picture
+
+> put a cute animal picture here.

populus/cli/init_cmd.py

@@ -5,6 +5,7 @@
 from populus import utils
 from populus.compilation import (
     get_contracts_dir,
+    get_project_libraries_dir,
 )
 
 from .main import main
@@ -19,10 +20,15 @@ def init():
     Generate project layout with an example contract.
     """
     project_dir = os.getcwd()
+
     contracts_dir = get_contracts_dir(project_dir)
     if utils.ensure_path_exists(contracts_dir):
         click.echo("Created Directory: ./{0}".format(os.path.relpath(contracts_dir)))
 
+    libraries_dir = get_project_libraries_dir(project_dir)
+    if utils.ensure_path_exists(libraries_dir):
+        click.echo("Created Directory: ./{0}".format(os.path.relpath(libraries_dir)))
+
     example_contract_path = os.path.join(contracts_dir, 'Example.sol')
     if not os.path.exists(example_contract_path):
         with open(example_contract_path, 'w') as example_contract_file:

populus/observers.py

@@ -72,7 +72,8 @@ def get_contracts_observer(project_dir, contract_filters=None, compiler_kwargs=N
     )
     observer = PollingObserver()
     observer.schedule(event_handler, contracts_dir, recursive=True)
-    observer.schedule(event_handler, libraries_dir, recursive=True)
+    if os.path.exists(libraries_dir):
+        observer.schedule(event_handler, libraries_dir, recursive=True)
     return observer