Added lib.where

pyblish/lib.py

@@ -207,3 +207,35 @@ def _resolve_name(name, package, level):
     __import__(name)
 
     return sys.modules[name]
+
+
+def where(program):
+    r"""Parse PATH for executables
+
+    Windows note:
+        PATHEXT yields possible suffixes, such as .exe, .bat and .cmd
+
+    Usage:
+        >> where("python")
+        'c:\\python27\\python.exe'
+
+    """
+
+    suffixes = [""]
+
+    try:
+        # Append Windows suffixes, such as .exe, .bat and .cmd
+        suffixes.extend(os.environ.get("PATHEXT").split(os.pathsep))
+    except:
+        pass
+
+    for path in os.environ["PATH"].split(os.pathsep):
+
+        # A path may be empty.
+        if not path:
+            continue
+
+        for suffix in suffixes:
+            full_path = os.path.join(path, program + suffix)
+            if os.path.isfile(full_path):
+                return full_path

pyblish/tests/plugins/full/validate_instances.py

@@ -3,7 +3,7 @@
 
 
 @pyblish.api.log
-class ValidateInstance(pyblish.api.Validator):
+class ValidateInstances(pyblish.api.Validator):
     hosts = ['python']
     families = ['full']
     version = (0, 1, 0)

pyblish/tests/test_lib.py

@@ -0,0 +1,10 @@
+import sys
+import pyblish.lib
+
+from pyblish.vendor.nose.tools import *
+
+
+def test_where():
+    """lib.where works fine"""
+    exe = pyblish.lib.where("python")
+    assert_equals(sys.executable.lower(), exe.lower())

pyblish/tests/test_main.py → pyblish/tests/test_util.py

@@ -12,8 +12,14 @@
 @with_setup(setup_full, teardown)
 def test_publish_all(_):
     """publish() calls upon each convenience function"""
-    ctx = pyblish.plugin.Context()
-    pyblish.util.publish(context=ctx)
+    plugins = pyblish.plugin.discover()
+
+    assert "ConformInstances" in [p.__name__ for p in plugins]
+    assert "SelectInstances" in [p.__name__ for p in plugins]
+    assert "ValidateInstances" in [p.__name__ for p in plugins]
+    assert "ExtractInstances" in [p.__name__ for p in plugins]
+
+    ctx = pyblish.util.publish()
 
     for inst in ctx:
         assert inst.data('selected') is True