| 1 | #!/usr/bin/env python2
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| 2 | """
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| 3 | html_head.py: Emit <html><head> boilerplate.
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| 4 |
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| 5 | And make sure it works on mobile!
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| 6 |
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| 7 | Note: this file is also run with python3, by the Soil CI, because outside
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| 8 | containers we don't have python2.
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| 9 | """
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| 10 | from __future__ import print_function
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| 11 |
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| 12 | import sys
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| 13 | try:
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| 14 | import html
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| 15 | except ImportError:
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| 16 | import cgi as html # only for cgi.escape -> html.escape
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| 17 | try:
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| 18 | import cStringIO
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| 19 | except ImportError:
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| 20 | cStringIO = None
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| 21 | import io
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| 22 | import optparse
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| 23 |
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| 24 | from doctools import doc_html
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| 25 |
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| 26 |
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| 27 | # Python library. Also see doctools/doc_html.py.
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| 28 | def Write(f, title, css_urls=None, js_urls=None):
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| 29 | css_urls = css_urls or []
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| 30 | js_urls = js_urls or []
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| 31 |
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| 32 | # Note: do lang=en and charset=utf8 matter? I guess if goes to a different
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| 33 | # web server?
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| 34 | f.write('''\
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| 35 | <!DOCTYPE html>
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| 36 | <html>
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| 37 | <head>
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| 38 | <meta name="viewport" content="width=device-width, initial-scale=1">
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| 39 | <title>%s</title>
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| 40 | ''' % html.escape(title))
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| 41 |
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| 42 | # Write CSS files first I guess?
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| 43 |
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| 44 | for url in css_urls:
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| 45 | f.write(doc_html.CSS_FMT % html.escape(url))
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| 46 |
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| 47 | for url in js_urls:
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| 48 | f.write(doc_html.JS_FMT % html.escape(url))
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| 49 |
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| 50 | f.write('''\
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| 51 | </head>
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| 52 | ''')
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| 53 |
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| 54 |
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| 55 | # Not used now
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| 56 | def HtmlHead(title, css_urls=None, js_urls=None):
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| 57 | if cStringIO:
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| 58 | f = cStringIO.StringIO()
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| 59 | else:
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| 60 | f = io.BytesIO()
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| 61 | Write(f, title, css_urls=css_urls, js_urls=js_urls)
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| 62 | return f.getvalue()
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| 63 |
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| 64 |
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| 65 | def main(argv):
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| 66 | p = optparse.OptionParser('html_head.py FLAGS? CSS_JS*')
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| 67 | p.add_option(
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| 68 | '-t', '--title', dest='title', default='',
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| 69 | help='The title of the web page')
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| 70 | opts, argv = p.parse_args(argv[1:])
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| 71 |
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| 72 | # Make it easier to use from shell scripts
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| 73 | css_urls = []
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| 74 | js_urls = []
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| 75 | for arg in argv:
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| 76 | i = arg.rfind('?') # account for query param
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| 77 | if i != -1:
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| 78 | url = arg[:i]
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| 79 | else:
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| 80 | url = arg
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| 81 |
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| 82 | if url.endswith('.js'):
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| 83 | js_urls.append(arg)
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| 84 | elif url.endswith('.css'):
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| 85 | css_urls.append(arg)
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| 86 | else:
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| 87 | raise RuntimeError("Expected URL with .js or .css, got %r" % arg)
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| 88 |
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| 89 | Write(sys.stdout, opts.title, css_urls=css_urls, js_urls=js_urls)
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| 90 |
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| 91 |
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| 92 |
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| 93 | if __name__ == '__main__':
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| 94 | try:
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| 95 | main(sys.argv)
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| 96 | except RuntimeError as e:
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| 97 | print('FATAL: %s' % e, file=sys.stderr)
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| 98 | sys.exit(1)
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