Minimal windows fixes

src/rez/backport/shutilwhich.py

@@ -36,7 +36,9 @@ def _access_check(fn, mode):
             path.insert(0, os.curdir)
 
         # PATHEXT is necessary to check on Windows.
-        pathext = env.get("PATHEXT", "").split(os.pathsep)
+        default_pathext = \
+            '.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC'
+        pathext = env.get("PATHEXT", default_pathext).split(os.pathsep)
         # See if the given file matches any of the expected path extensions.
         # This will allow us to short circuit when given "python.exe".
         matches = [cmd for ext in pathext if cmd.lower().endswith(ext.lower())]

src/rez/bind/cmake.py

@@ -21,7 +21,8 @@ def commands():
 
 def bind(path, version_range=None, opts=None, parser=None):
     exepath = find_exe("cmake", getattr(opts, "exe", None))
-    version = extract_version(exepath, "--version")
+    version = extract_version(exepath, "--version",
+                              word_index=2 if os.name == 'nt' else -1)
     check_version(version, version_range)
 
     def make_root(variant, root):

src/rez/cli/pip.py

@@ -22,9 +22,9 @@ def command(opts, parser, extra_arg_groups=None):
     from rez.pip import pip_install_package
 
     if opts.py_ver:
-        pyvers = opts.py_ver.strip(',').split(',')
+        py_vers = opts.py_ver.strip(',').split(',')
     else:
-        pyvers = None
+        py_vers = None
 
     pip_install_package(opts.PACKAGE,
                         pip_version=opts.pip_ver,

src/rezplugins/build_system/cmake.py

@@ -120,7 +120,8 @@ def _pr(s):
         cmd += (self.build_args or [])
 
         cmd.append("-DCMAKE_INSTALL_PREFIX=%s" % install_path)
-        cmd.append("-DCMAKE_MODULE_PATH=%s" % sh.get_key_token("CMAKE_MODULE_PATH"))
+        cmd.append("-DCMAKE_MODULE_PATH=%s" % 
+                   sh.get_key_token("CMAKE_MODULE_PATH").replace('\\', '/'))
         cmd.append("-DCMAKE_BUILD_TYPE=%s" % self.build_target)
         cmd.append("-DREZ_BUILD_TYPE=%s" % build_type.name)
         cmd.append("-DREZ_BUILD_INSTALL=%d" % (1 if install else 0))
@@ -174,9 +175,11 @@ def _pr(s):
             cmd = ["make"]
         cmd += (self.child_build_args or [])
 
-        if not any(x.startswith("-j") for x in (self.child_build_args or [])):
-            n = variant.config.build_thread_count
-            cmd.append("-j%d" % n)
+        # nmake has no -j
+        if self.settings.make_binary != 'nmake':
+            if not any(x.startswith("-j") for x in (self.child_build_args or [])):
+                n = variant.config.build_thread_count
+                cmd.append("-j%d" % n)
 
         # execute make within the build env
         _pr("\nExecuting: %s" % ' '.join(cmd))
@@ -204,7 +207,7 @@ def _add_build_actions(executor, context, package, variant, build_type):
         cmake_path = os.path.join(os.path.dirname(__file__), "cmake_files")
         template_path = os.path.join(os.path.dirname(__file__), "template_files")
 
-        executor.env.CMAKE_MODULE_PATH.append(cmake_path)
+        executor.env.CMAKE_MODULE_PATH.append(cmake_path.replace('\\', '/'))
         executor.env.REZ_BUILD_DOXYFILE = os.path.join(template_path, 'Doxyfile')
         executor.env.REZ_BUILD_VARIANT_INDEX = variant.index or 0
         executor.env.REZ_BUILD_THREAD_COUNT = package.config.build_thread_count

src/rezplugins/build_system/cmake_files/RezPipInstall.cmake

@@ -70,6 +70,9 @@ macro (rez_pip_install)
         set(install_cmd "")
     endif()
 
+    # PIP on Windows doesn't like forward slashes for the --install-scripts argument
+    file(TO_NATIVE_PATH ${destbinpath} destbinpath)
+
     ExternalProject_add(
         ${label}
         URL ${url}

src/rezplugins/shell/cmd.py

@@ -93,7 +93,7 @@ def get_syspaths(cls):
     def _bind_interactive_rez(self):
         if config.set_prompt and self.settings.prompt:
             stored_prompt = os.getenv("REZ_STORED_PROMPT")
-            curr_prompt = stored_prompt or os.getenv("PROMPT", "foobar")
+            curr_prompt = stored_prompt or os.getenv("PROMPT", "")
             if not stored_prompt:
                 self.setenv("REZ_STORED_PROMPT", curr_prompt)
 
@@ -121,7 +121,11 @@ def _record_shell(ex, files, bind_rez=True, print_msg=False):
 #                ex.info('You are now in a rez-configured environment.')
 #                ex.info('')
                 if system.is_production_rez_install:
-                    ex.command("cmd /Q /K rezolve context")
+                    # previously this was called with the /K flag, however
+                    # that would leave spawn_shell hung on a blocked call
+                    # waiting for the user to type "exit" into the shell that
+                    # was spawned to run the rez context printout
+                    ex.command("cmd /Q /C rez context")
 
         def _create_ex():
             return RexExecutor(interpreter=self.new_shell(),