Ensure conda build will also install the jupyter kernel spec

recipe/bld.bat

@@ -1 +1 @@
-python setup.py install
+python setup.py install --conda

recipe/meta.yaml

@@ -6,7 +6,7 @@ source:
    path: ../
 
 build:
-  script: python setup.py install
+  script: python setup.py install --conda
   number: {{ environ.get('GIT_DESCRIBE_NUMBER', 0) }}
   entry_points:
     - xonsh = xonsh.main:main
@@ -15,6 +15,7 @@ requirements:
   build:
     - python
     - ply
+    - jupyter
   run:
     - python
     - ply

setup.py

@@ -28,6 +28,11 @@ from xonsh import __version__ as XONSH_VERSION
 
 TABLES = ['xonsh/lexer_table.py', 'xonsh/parser_table.py']
 
+
+CONDA = ("--conda" in sys.argv)
+if CONDA:
+    sys.argv.remove("--conda")
+
 def clean_tables():
     for f in TABLES:
         if os.path.isfile(f):
@@ -54,6 +59,16 @@ def install_jupyter_hook():
             "language":"xonsh",
             "codemirror_mode":"shell",
             }
+    if CONDA:
+        d = os.path.join(os.environ['PREFIX'] +
+                         '/share/jupyter/kernels/xonsh/')
+        os.makedirs(d, exist_ok=True)
+        if sys.platform == 'win32':
+            # Ensure that conda-build detects the hard coded prefix
+            spec['argv'][0] = spec['argv'][0].replace(os.sep, os.altsep)
+        with open(os.path.join(d, 'kernel.json'), 'w') as f:
+            json.dump(spec, f, sort_keys=True)
+    else:
         with TemporaryDirectory() as d:
             os.chmod(d, 0o755)  # Starts off as 700, not user readable
             with open(os.path.join(d, 'kernel.json'), 'w') as f:
@@ -61,7 +76,6 @@ def install_jupyter_hook():
             print('Installing Jupyter kernel spec...')
             install_kernel_spec(d, 'xonsh', user=('--user' in sys.argv), replace=True)
 
-
 class xinstall(install):
     def run(self):
         clean_tables()