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Unified Diff: tools/json_schema_compiler/preview.py

Issue 682493002: Remove the dependency on json schema compiler. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 6 years, 2 months ago
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Index: tools/json_schema_compiler/preview.py
diff --git a/tools/json_schema_compiler/preview.py b/tools/json_schema_compiler/preview.py
deleted file mode 100755
index 050af9637efbe9ca7eb5d5d6c5819e23c5a4162e..0000000000000000000000000000000000000000
--- a/tools/json_schema_compiler/preview.py
+++ /dev/null
@@ -1,364 +0,0 @@
-#!/usr/bin/env python
-
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-"""Server for viewing the compiled C++ code from tools/json_schema_compiler.
-"""
-
-import cc_generator
-import code
-import cpp_type_generator
-import cpp_util
-import h_generator
-import idl_schema
-import json_schema
-import model
-import optparse
-import os
-import shlex
-import urlparse
-from highlighters import (
- pygments_highlighter, none_highlighter, hilite_me_highlighter)
-from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
-from cpp_namespace_environment import CppNamespaceEnvironment
-from schema_loader import SchemaLoader
-
-
-class CompilerHandler(BaseHTTPRequestHandler):
- """A HTTPRequestHandler that outputs the result of tools/json_schema_compiler.
- """
- def do_GET(self):
- parsed_url = urlparse.urlparse(self.path)
- request_path = self._GetRequestPath(parsed_url)
-
- chromium_favicon = 'http://codereview.chromium.org/static/favicon.ico'
-
- head = code.Code()
- head.Append('<link rel="icon" href="%s">' % chromium_favicon)
- head.Append('<link rel="shortcut icon" href="%s">' % chromium_favicon)
-
- body = code.Code()
-
- try:
- if os.path.isdir(request_path):
- self._ShowPanels(parsed_url, head, body)
- else:
- self._ShowCompiledFile(parsed_url, head, body)
- finally:
- self.wfile.write('<html><head>')
- self.wfile.write(head.Render())
- self.wfile.write('</head><body>')
- self.wfile.write(body.Render())
- self.wfile.write('</body></html>')
-
- def _GetRequestPath(self, parsed_url, strip_nav=False):
- """Get the relative path from the current directory to the requested file.
- """
- path = parsed_url.path
- if strip_nav:
- path = parsed_url.path.replace('/nav', '')
- return os.path.normpath(os.curdir + path)
-
- def _ShowPanels(self, parsed_url, head, body):
- """Show the previewer frame structure.
-
- Code panes are populated via XHR after links in the nav pane are clicked.
- """
- (head.Append('<style>')
- .Append('body {')
- .Append(' margin: 0;')
- .Append('}')
- .Append('.pane {')
- .Append(' height: 100%;')
- .Append(' overflow-x: auto;')
- .Append(' overflow-y: scroll;')
- .Append(' display: inline-block;')
- .Append('}')
- .Append('#nav_pane {')
- .Append(' width: 20%;')
- .Append('}')
- .Append('#nav_pane ul {')
- .Append(' list-style-type: none;')
- .Append(' padding: 0 0 0 1em;')
- .Append('}')
- .Append('#cc_pane {')
- .Append(' width: 40%;')
- .Append('}')
- .Append('#h_pane {')
- .Append(' width: 40%;')
- .Append('}')
- .Append('</style>')
- )
-
- body.Append(
- '<div class="pane" id="nav_pane">%s</div>'
- '<div class="pane" id="h_pane"></div>'
- '<div class="pane" id="cc_pane"></div>' %
- self._RenderNavPane(parsed_url.path[1:])
- )
-
- # The Javascript that interacts with the nav pane and panes to show the
- # compiled files as the URL or highlighting options change.
- body.Append('''<script type="text/javascript">
-// Calls a function for each highlighter style <select> element.
-function forEachHighlighterStyle(callback) {
- var highlighterStyles =
- document.getElementsByClassName('highlighter_styles');
- for (var i = 0; i < highlighterStyles.length; ++i)
- callback(highlighterStyles[i]);
-}
-
-// Called when anything changes, such as the highlighter or hashtag.
-function updateEverything() {
- var highlighters = document.getElementById('highlighters');
- var highlighterName = highlighters.value;
-
- // Cache in localStorage for when the page loads next.
- localStorage.highlightersValue = highlighterName;
-
- // Show/hide the highlighter styles.
- var highlighterStyleName = '';
- forEachHighlighterStyle(function(highlighterStyle) {
- if (highlighterStyle.id === highlighterName + '_styles') {
- highlighterStyle.removeAttribute('style')
- highlighterStyleName = highlighterStyle.value;
- } else {
- highlighterStyle.setAttribute('style', 'display:none')
- }
-
- // Cache in localStorage for when the page next loads.
- localStorage[highlighterStyle.id + 'Value'] = highlighterStyle.value;
- });
-
- // Populate the code panes.
- function populateViaXHR(elementId, requestPath) {
- var xhr = new XMLHttpRequest();
- xhr.onreadystatechange = function() {
- if (xhr.readyState != 4)
- return;
- if (xhr.status != 200) {
- alert('XHR error to ' + requestPath);
- return;
- }
- document.getElementById(elementId).innerHTML = xhr.responseText;
- };
- xhr.open('GET', requestPath, true);
- xhr.send();
- }
-
- var targetName = window.location.hash;
- targetName = targetName.substring('#'.length);
- targetName = targetName.split('.', 1)[0]
-
- if (targetName !== '') {
- var basePath = window.location.pathname;
- var query = 'highlighter=' + highlighterName + '&' +
- 'style=' + highlighterStyleName;
- populateViaXHR('h_pane', basePath + '/' + targetName + '.h?' + query);
- populateViaXHR('cc_pane', basePath + '/' + targetName + '.cc?' + query);
- }
-}
-
-// Initial load: set the values of highlighter and highlighterStyles from
-// localStorage.
-(function() {
-var cachedValue = localStorage.highlightersValue;
-if (cachedValue)
- document.getElementById('highlighters').value = cachedValue;
-
-forEachHighlighterStyle(function(highlighterStyle) {
- var cachedValue = localStorage[highlighterStyle.id + 'Value'];
- if (cachedValue)
- highlighterStyle.value = cachedValue;
-});
-})();
-
-window.addEventListener('hashchange', updateEverything, false);
-updateEverything();
-</script>''')
-
- def _ShowCompiledFile(self, parsed_url, head, body):
- """Show the compiled version of a json or idl file given the path to the
- compiled file.
- """
- api_model = model.Model()
-
- request_path = self._GetRequestPath(parsed_url)
- (file_root, file_ext) = os.path.splitext(request_path)
- (filedir, filename) = os.path.split(file_root)
-
- schema_loader = SchemaLoader("./",
- filedir,
- self.server.include_rules,
- self.server.cpp_namespace_pattern)
- try:
- # Get main file.
- namespace = schema_loader.ResolveNamespace(filename)
- type_generator = cpp_type_generator.CppTypeGenerator(
- api_model,
- schema_loader,
- namespace)
-
- # Generate code
- cpp_namespace = 'generated_api_schemas'
- if file_ext == '.h':
- cpp_code = (h_generator.HGenerator(type_generator)
- .Generate(namespace).Render())
- elif file_ext == '.cc':
- cpp_code = (cc_generator.CCGenerator(type_generator)
- .Generate(namespace).Render())
- else:
- self.send_error(404, "File not found: %s" % request_path)
- return
-
- # Do highlighting on the generated code
- (highlighter_param, style_param) = self._GetHighlighterParams(parsed_url)
- head.Append('<style>' +
- self.server.highlighters[highlighter_param].GetCSS(style_param) +
- '</style>')
- body.Append(self.server.highlighters[highlighter_param]
- .GetCodeElement(cpp_code, style_param))
- except IOError:
- self.send_error(404, "File not found: %s" % request_path)
- return
- except (TypeError, KeyError, AttributeError,
- AssertionError, NotImplementedError) as error:
- body.Append('<pre>')
- body.Append('compiler error: %s' % error)
- body.Append('Check server log for more details')
- body.Append('</pre>')
- raise
-
- def _GetHighlighterParams(self, parsed_url):
- """Get the highlighting parameters from a parsed url.
- """
- query_dict = urlparse.parse_qs(parsed_url.query)
- return (query_dict.get('highlighter', ['pygments'])[0],
- query_dict.get('style', ['colorful'])[0])
-
- def _RenderNavPane(self, path):
- """Renders an HTML nav pane.
-
- This consists of a select element to set highlight style, and a list of all
- files at |path| with the appropriate onclick handlers to open either
- subdirectories or JSON files.
- """
- html = code.Code()
-
- # Highlighter chooser.
- html.Append('<select id="highlighters" onChange="updateEverything()">')
- for name, highlighter in self.server.highlighters.items():
- html.Append('<option value="%s">%s</option>' %
- (name, highlighter.DisplayName()))
- html.Append('</select>')
-
- html.Append('<br/>')
-
- # Style for each highlighter.
- # The correct highlighting will be shown by Javascript.
- for name, highlighter in self.server.highlighters.items():
- styles = sorted(highlighter.GetStyles())
- if not styles:
- continue
-
- html.Append('<select class="highlighter_styles" id="%s_styles" '
- 'onChange="updateEverything()">' % name)
- for style in styles:
- html.Append('<option>%s</option>' % style)
- html.Append('</select>')
-
- html.Append('<br/>')
-
- # The files, with appropriate handlers.
- html.Append('<ul>')
-
- # Make path point to a non-empty directory. This can happen if a URL like
- # http://localhost:8000 is navigated to.
- if path == '':
- path = os.curdir
-
- # Firstly, a .. link if this isn't the root.
- if not os.path.samefile(os.curdir, path):
- normpath = os.path.normpath(os.path.join(path, os.pardir))
- html.Append('<li><a href="/%s">%s/</a>' % (normpath, os.pardir))
-
- # Each file under path/
- for filename in sorted(os.listdir(path)):
- full_path = os.path.join(path, filename)
- (file_root, file_ext) = os.path.splitext(full_path)
- if os.path.isdir(full_path) and not full_path.endswith('.xcodeproj'):
- html.Append('<li><a href="/%s/">%s/</a>' % (full_path, filename))
- elif file_ext in ['.json', '.idl']:
- # cc/h panes will automatically update via the hash change event.
- html.Append('<li><a href="#%s">%s</a>' %
- (filename, filename))
-
- html.Append('</ul>')
-
- return html.Render()
-
-
-class PreviewHTTPServer(HTTPServer, object):
- def __init__(self,
- server_address,
- handler,
- highlighters,
- include_rules,
- cpp_namespace_pattern):
- super(PreviewHTTPServer, self).__init__(server_address, handler)
- self.highlighters = highlighters
- self.include_rules = include_rules
- self.cpp_namespace_pattern = cpp_namespace_pattern
-
-
-if __name__ == '__main__':
- parser = optparse.OptionParser(
- description='Runs a server to preview the json_schema_compiler output.',
- usage='usage: %prog [option]...')
- parser.add_option('-p', '--port', default='8000',
- help='port to run the server on')
- parser.add_option('-n', '--namespace', default='generated_api_schemas',
- help='C++ namespace for generated files. e.g extensions::api.')
- parser.add_option('-I', '--include-rules',
- help='A list of paths to include when searching for referenced objects,'
- ' with the namespace separated by a \':\'. Example: '
- '/foo/bar:Foo::Bar::%(namespace)s')
-
- (opts, argv) = parser.parse_args()
-
- def split_path_and_namespace(path_and_namespace):
- if ':' not in path_and_namespace:
- raise ValueError('Invalid include rule "%s". Rules must be of '
- 'the form path:namespace' % path_and_namespace)
- return path_and_namespace.split(':', 1)
-
- include_rules = []
- if opts.include_rules:
- include_rules = map(split_path_and_namespace,
- shlex.split(opts.include_rules))
-
- try:
- print('Starting previewserver on port %s' % opts.port)
- print('The extension documentation can be found at:')
- print('')
- print(' http://localhost:%s/chrome/common/extensions/api' % opts.port)
- print('')
-
- highlighters = {
- 'hilite': hilite_me_highlighter.HiliteMeHighlighter(),
- 'none': none_highlighter.NoneHighlighter()
- }
- try:
- highlighters['pygments'] = pygments_highlighter.PygmentsHighlighter()
- except ImportError as e:
- pass
-
- server = PreviewHTTPServer(('', int(opts.port)),
- CompilerHandler,
- highlighters,
- include_rules,
- opts.namespace)
- server.serve_forever()
- except KeyboardInterrupt:
- server.socket.close()
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