remove bower

use npm to fetch dependencies and a simple postinstall script to copy into components

.bowerrc

@@ -1,3 +0,0 @@
-{
-  "directory": "share/jupyter/hub/static/components"
-}

MANIFEST.in

@@ -1,7 +1,7 @@
 include README.md
 include COPYING.md
 include setupegg.py
-include bower.json
+include bower-lite
 include package.json
 include *requirements.txt
 include Dockerfile
@@ -18,12 +18,13 @@ graft docs
 prune docs/node_modules
 
 # prune some large unused files from components
-prune share/jupyter/hub/static/components/bootstrap/css
+prune share/jupyter/hub/static/components/bootstrap/dist/css
-exclude share/jupyter/hub/static/components/components/fonts/*.svg
+exclude share/jupyter/hub/static/components/bootstrap/dist/fonts/*.svg
-exclude share/jupyter/hub/static/components/bootstrap/less/*.js
+prune share/jupyter/hub/static/components/font-awesome/css
-exclude share/jupyter/hub/static/components/font-awesome/css
+prune share/jupyter/hub/static/components/font-awesome/scss
 exclude share/jupyter/hub/static/components/font-awesome/fonts/*.svg
-exclude share/jupyter/hub/static/components/jquery/*migrate*.js
+prune share/jupyter/hub/static/components/jquery/external
+prune share/jupyter/hub/static/components/jquery/src
 prune share/jupyter/hub/static/components/moment/lang
 prune share/jupyter/hub/static/components/moment/min
 

bower-lite

@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+"""
+bower-lite
+
+Since Bower's on its way out,
+stage frontend dependencies from node_modules into components
+"""
+
+import json
+import os
+from os.path import join
+import shutil
+
+HERE = os.path.abspath(os.path.dirname(__file__))
+
+
+components = join(HERE, "share", "jupyter", "hub", "static", "components")
+node_modules = join(HERE, "node_modules")
+
+if os.path.exists(components):
+    shutil.rmtree(components)
+os.mkdir(components)
+
+with open(join(HERE, 'package.json')) as f:
+    package_json = json.load(f)
+
+dependencies = package_json['dependencies']
+for dep in dependencies:
+    src = join(node_modules, dep)
+    dest = join(components, dep)
+    print("%s -> %s" % (src, dest))
+    shutil.copytree(src, dest)

bower.json

@@ -1,11 +0,0 @@
-{
-  "name": "jupyterhub-deps",
-  "version": "0.0.0",
-  "dependencies": {
-    "bootstrap": "components/bootstrap#~3.3",
-    "font-awesome": "components/font-awesome#~4.7",
-    "jquery": "components/jquery#~3.2",
-    "moment": "~2.18",
-    "requirejs": "~2.3"
-  }
-}

package.json

@@ -8,10 +8,19 @@
     "type": "git",
     "url": "https://github.com/jupyter/jupyterhub.git"
   },
+  "scripts": {
+    "postinstall": "./bower-lite"
+  },
   "devDependencies": {
-  "bower": "*",
     "less": "^2.7.1",
     "less-plugin-clean-css": "^1.5.1",
     "clean-css": "^3.4.13"
+  },
+  "dependencies": {
+    "bootstrap": "^3.3.7",
+    "font-awesome": "^4.7.0",
+    "jquery": "^3.2.1",
+    "moment": "^2.18.1",
+    "requirejs": "^2.3.4"
   }
 }

setup.py

@@ -149,45 +149,34 @@ class BaseCommand(Command):
         return []
 
 
-class Bower(BaseCommand):
+class NPM(BaseCommand):
     description = "fetch static client-side components with bower"
 
     user_options = []
-    bower_dir = pjoin(static, 'components')
     node_modules = pjoin(here, 'node_modules')
+    bower_dir = pjoin(static, 'components')
 
     def should_run(self):
-        if not os.path.exists(self.bower_dir):
-            return True
-        return mtime(self.bower_dir) < mtime(pjoin(here, 'bower.json'))
-
-    def should_run_npm(self):
         if not shutil.which('npm'):
             print("npm unavailable", file=sys.stderr)
             return False
+        if not os.path.exists(self.bower_dir):
+            return True
         if not os.path.exists(self.node_modules):
             return True
+        if mtime(self.bower_dir) < mtime(self.node_modules):
+            return True
         return mtime(self.node_modules) < mtime(pjoin(here, 'package.json'))
 
     def run(self):
         if not self.should_run():
-            print("bower dependencies up to date")
+            print("npm dependencies up to date")
             return
 
-        if self.should_run_npm():
+        print("installing js dependencies with npm")
-            print("installing build dependencies with npm")
         check_call(['npm', 'install', '--progress=false'], cwd=here, shell=shell)
         os.utime(self.node_modules)
 
-        env = os.environ.copy()
-        env['PATH'] = npm_path
-        args = ['bower', 'install', '--allow-root', '--config.interactive=false']
-        try:
-            check_call(args, cwd=here, env=env, shell=shell)
-        except OSError as e:
-            print("Failed to run bower: %s" % e, file=sys.stderr)
-            print("You can install js dependencies with `npm install`", file=sys.stderr)
-            raise
         os.utime(self.bower_dir)
         # update data-files in case this created new files
         self.distribution.data_files = get_data_files()
@@ -275,7 +264,7 @@ class bdist_egg_disabled(bdist_egg):
 
 
 setup_args['cmdclass'] = {
-    'js': Bower,
+    'js': NPM,
     'css': CSS,
     'build_py': js_css_first(build_py, strict=is_repo),
     'sdist': js_css_first(sdist, strict=True),

share/jupyter/hub/templates/page.html

@@ -35,8 +35,8 @@
     <link rel="stylesheet" href="{{ static_url("css/style.min.css") }}" type="text/css"/>
     {% endblock %}
     <script src="{{static_url("components/requirejs/require.js") }}" type="text/javascript" charset="utf-8"></script>
-    <script src="{{static_url("components/jquery/jquery.min.js") }}" type="text/javascript" charset="utf-8"></script>
+    <script src="{{static_url("components/jquery/dist/jquery.min.js") }}" type="text/javascript" charset="utf-8"></script>
-    <script src="{{static_url("components/bootstrap/js/bootstrap.min.js") }}" type="text/javascript" charset="utf-8"></script>
+    <script src="{{static_url("components/bootstrap/dist/js/bootstrap.min.js") }}" type="text/javascript" charset="utf-8"></script>
     <script>
       require.config({
           {% if version_hash %}
@@ -45,8 +45,8 @@
           baseUrl: '{{static_url("js", include_version=False)}}',
           paths: {
             components: '../components',
-            jquery: '../components/jquery/jquery.min',
+            jquery: '../components/jquery/dist/jquery.min',
-            bootstrap: '../components/bootstrap/js/bootstrap.min',
+            bootstrap: '../components/bootstrap/dist/js/bootstrap.min',
             moment: "../components/moment/moment",
           },
           shim: {