From 42b59e1536721cc6a8ac53a203c6bbf6a3926740 Mon Sep 17 00:00:00 2001
From: Anton Akhmerov <anton.akhmerov@gmail.com>
Date: Sun, 2 May 2021 02:07:38 +0200
Subject: [PATCH] implement passthrough configuration

---
 sphinx_thebe/__init__.py | 89 +++++++++++-----------------------------
 1 file changed, 24 insertions(+), 65 deletions(-)

diff --git a/sphinx_thebe/__init__.py b/sphinx_thebe/__init__.py
index 13d4682..1f7fddf 100644
--- a/sphinx_thebe/__init__.py
+++ b/sphinx_thebe/__init__.py
@@ -18,35 +18,22 @@ def st_static_path(app):
     app.config.html_static_path.append(static_path)
 
 
-def init_thebe_default_config(app, env, docnames):
-    thebe_config = app.config.thebe_config
-    defaults = {
-        "selector": ".thebe",
-        "selector_input": "pre",
-        "selector_output": ".output",
-    }
-    for key, val in defaults.items():
-        if key not in thebe_config:
-            thebe_config[key] = val
-
-
 def init_thebe_core(app, env):
-    config_thebe = app.config["thebe_config"]
-    if not config_thebe:
+    if not app.config["thebe_config"]:
         logger.warning("Didn't find `thebe_config` in conf.py, add to use thebe")
         return
 
     # Add core libraries
     opts = {"async": "async"}
-    app.add_js_file(filename="https://unpkg.com/thebelab@latest/lib/index.js", **opts)
+    app.add_js_file(filename=app.config.thebe_url, **opts)
 
     # Add configuration variables
-    thebe_config = f"""
-        const thebe_selector = "{ app.config.thebe_config['selector'] }"
-        const thebe_selector_input = "{ app.config.thebe_config['selector_input'] }"
-        const thebe_selector_output = "{ app.config.thebe_config['selector_output'] }"
+    selector_config = f"""
+        const thebe_selector = "{ app.config.thebe_selector['cell'] }"
+        const thebe_selector_input = "{ app.config.thebe_selector['input'] }"
+        const thebe_selector_output = "{ app.config.thebe_selector['output'] }"
     """
-    app.add_js_file(None, body=thebe_config)
+    app.add_js_file(None, body=selector_config)
     app.add_js_file(filename="sphinx-thebe.js", **opts)
 
 
@@ -63,7 +50,6 @@ def update_thebe_context(app, doctree, docname):
         raise ValueError(
             "thebe configuration must be `True` or a dictionary for configuration."
         )
-    codemirror_theme = config_thebe.get("codemirror-theme", "abcdef")
 
     # Thebe configuration
     # Choose the kernel we'll use
@@ -75,41 +61,10 @@ def update_thebe_context(app, doctree, docname):
         else:
             kernel_name = "python3"
 
-    # Codemirror syntax
-    cm_language = kernel_name
-    if "python" in cm_language:
-        cm_language = "python"
-    elif cm_language == "ir":
-        cm_language = "r"
-
-    # Create the URL for the kernel request
-    repo_url = config_thebe.get(
-        "repository_url",
-        "https://github.com/binder-examples/jupyter-stacks-datascience",
-    )
-    branch = config_thebe.get("repository_branch", "master")
-    path_to_docs = config_thebe.get("path_to_docs", ".").strip("/") + "/"
-    org, repo = _split_repo_url(repo_url)
-
     # Update the doctree with some nodes for the thebe configuration
     thebe_html_config = f"""
     <script type="text/x-thebe-config">
-    {{
-        requestKernel: true,
-        binderOptions: {{
-            repo: "{org}/{repo}",
-            ref: "{branch}",
-        }},
-        codeMirrorConfig: {{
-            theme: "{codemirror_theme}",
-            mode: "{cm_language}"
-        }},
-        kernelOptions: {{
-            kernelName: "{kernel_name}",
-            path: "{path_to_docs}{str(Path(docname).parent)}"
-        }},
-        predefinedOutput: true
-    }}
+    { json.dumps(thebe_config) }
     </script>
     """
 
@@ -119,17 +74,6 @@ def update_thebe_context(app, doctree, docname):
     )
 
 
-def _split_repo_url(url):
-    """Split a repository URL into an org / repo combination."""
-    if "github.com/" in url:
-        end = url.split("github.com/")[-1]
-        org, repo = end.split("/")[:2]
-    else:
-        logger.warning(f"Currently Thebe repositories must be on GitHub, got {url}")
-        org = repo = None
-    return org, repo
-
-
 class ThebeButtonNode(nodes.Element):
     """Appended to the doctree by the ThebeButton directive
 
@@ -196,7 +140,22 @@ def setup(app):
     app.connect("env-updated", init_thebe_core)
 
     # configuration for this tool
-    app.add_config_value("thebe_config", {}, "html")
+    app.add_config_value("thebe_config", None, "html")
+    app.add_config_value(
+        "thebe_selector",
+        {
+            "cell": ".thebe",
+            "input": "pre",
+            "output": ".output",
+        },
+        "html",
+    )
+    app.add_config_value(
+        "thebe_url",
+        "https://unpkg.com/thebe@0.6.0/lib/index.js",
+        "html"
+    )
+
     # override=True in case Jupyter Sphinx has already been loaded
     app.add_directive("thebe-button", ThebeButton, override=True)