Python difflib.HtmlDiff() Examples

def html_diff(self, fromfile, tofile):
        try:
            import difflib
            fromlines = open(fromfile, 'U').readlines()
            tolines = open(tofile, 'U').readlines()
            diff = difflib.HtmlDiff().make_file(fromlines,tolines,fromfile,tofile)
            path = '/tmp/' + os.path.basename(fromfile) + '_' + os.path.basename(tofile) + '_diff.html'
            f = open(path,'w')
            f.write(diff)
            f.close()
            return path
            #import webbrowser
            #webbrowser.open_new_tab(path)
        except Exception as e:
            self.logger.error("failed to diff files %s, %s: %s", fromfile, tofile, str(e))
            return None 

def main():

    usage = "usage: %prog [options] fromfile tofile"
    parser = optparse.OptionParser(usage)
    parser.add_option("-c", action="store_true", default=False, help='Produce a context format diff (default)')
    parser.add_option("-u", action="store_true", default=False, help='Produce a unified format diff')
    parser.add_option("-m", action="store_true", default=False, help='Produce HTML side by side diff (can use -c and -l in conjunction)')
    parser.add_option("-n", action="store_true", default=False, help='Produce a ndiff format diff')
    parser.add_option("-l", "--lines", type="int", default=3, help='Set number of context lines (default 3)')
    (options, args) = parser.parse_args()

    if len(args) == 0:
        parser.print_help()
        sys.exit(1)
    if len(args) != 2:
        parser.error("need to specify both a fromfile and tofile")

    n = options.lines
    fromfile, tofile = args

    fromdate = time.ctime(os.stat(fromfile).st_mtime)
    todate = time.ctime(os.stat(tofile).st_mtime)
    fromlines = open(fromfile, 'U').readlines()
    tolines = open(tofile, 'U').readlines()

    if options.u:
        diff = difflib.unified_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)
    elif options.n:
        diff = difflib.ndiff(fromlines, tolines)
    elif options.m:
        diff = difflib.HtmlDiff().make_file(fromlines,tolines,fromfile,tofile,context=options.c,numlines=n)
    else:
        diff = difflib.context_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)

    sys.stdout.writelines(diff) 

def test_main():
    difflib.HtmlDiff._default_prefix = 0
    Doctests = doctest.DocTestSuite(difflib)
    run_unittest(TestSFpatches, TestSFbugs, Doctests) 

def test_main():
    difflib.HtmlDiff._default_prefix = 0
    Doctests = doctest.DocTestSuite(difflib)
    run_unittest(
        TestWithAscii, TestAutojunk, TestSFpatches, TestSFbugs,
        TestOutputFormat, Doctests) 

def main():

    usage = "usage: %prog [options] fromfile tofile"
    parser = optparse.OptionParser(usage)
    parser.add_option("-c", action="store_true", default=False, help='Produce a context format diff (default)')
    parser.add_option("-u", action="store_true", default=False, help='Produce a unified format diff')
    parser.add_option("-m", action="store_true", default=False, help='Produce HTML side by side diff (can use -c and -l in conjunction)')
    parser.add_option("-n", action="store_true", default=False, help='Produce a ndiff format diff')
    parser.add_option("-l", "--lines", type="int", default=3, help='Set number of context lines (default 3)')
    (options, args) = parser.parse_args()

    if len(args) == 0:
        parser.print_help()
        sys.exit(1)
    if len(args) != 2:
        parser.error("need to specify both a fromfile and tofile")

    n = options.lines
    fromfile, tofile = args

    fromdate = time.ctime(os.stat(fromfile).st_mtime)
    todate = time.ctime(os.stat(tofile).st_mtime)
    fromlines = open(fromfile, 'U').readlines()
    tolines = open(tofile, 'U').readlines()

    if options.u:
        diff = difflib.unified_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)
    elif options.n:
        diff = difflib.ndiff(fromlines, tolines)
    elif options.m:
        diff = difflib.HtmlDiff().make_file(fromlines,tolines,fromfile,tofile,context=options.c,numlines=n)
    else:
        diff = difflib.context_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)

    sys.stdout.writelines(diff) 

def create_diff_report(file1, file2, file_name, from_desc, to_desc, is_64_bit):

    """ Create a report showing the differences between two files

        Arguments :
            file1 : path to a file to disassemble
            file2 : path to a file to disassemble
            report_name : The name to use for the report
            from_desc : A description of the 'from' element
            to_desc : A description of the 'to' element
    """

    # Disassemble each file and split into lines
    disassembled_1 = OPcacheDisassembler(is_64_bit).disassemble(file1).split("\n")
    disassembled_2 = OPcacheDisassembler(is_64_bit).disassemble(file2).split("\n")

    # Differ
    html_differ = difflib.HtmlDiff()

    # Generate the report and write into a file
    file_name = file_name.replace("/", "%2f") + '.html'
    hash_name = hashlib.sha1(file_name).hexdigest()
    with open(hunt_report + "/" + hash_name + ".html", "w") as f:
	content = html_differ.make_file(disassembled_1, disassembled_2, from_desc, to_desc)
        f.write(content)

    # Return the name of the report
    return (file_name, hash_name + ".html") 

def make_diff(old, new):
    """
    Render in HTML the diff between two texts
    """
    df = HtmlDiff()
    old_lines = old.splitlines(1)
    new_lines = new.splitlines(1)
    html = df.make_table(old_lines, new_lines, context=True)
    html = html.replace(' nowrap="nowrap"','')
    return html 

def test_make_file_default_charset(self):
        html_diff = difflib.HtmlDiff()
        output = html_diff.make_file(patch914575_from1.splitlines(),
                                     patch914575_to1.splitlines())
        self.assertIn('content="text/html; charset=utf-8"', output) 

def test_make_file_iso88591_charset(self):
        html_diff = difflib.HtmlDiff()
        output = html_diff.make_file(patch914575_from1.splitlines(),
                                     patch914575_to1.splitlines(),
                                     charset='iso-8859-1')
        self.assertIn('content="text/html; charset=iso-8859-1"', output) 

def test_make_file_usascii_charset_with_nonascii_input(self):
        html_diff = difflib.HtmlDiff()
        output = html_diff.make_file(patch914575_nonascii_from1.splitlines(),
                                     patch914575_nonascii_to1.splitlines(),
                                     charset='us-ascii')
        self.assertIn('content="text/html; charset=us-ascii"', output)
        self.assertIn('ımplıcıt', output) 

def test_main():
    difflib.HtmlDiff._default_prefix = 0
    Doctests = doctest.DocTestSuite(difflib)
    run_unittest(
        TestWithAscii, TestAutojunk, TestSFpatches, TestSFbugs,
        TestOutputFormat, TestBytes, TestJunkAPIs, Doctests) 

def main():

    parser = argparse.ArgumentParser()
    parser.add_argument('-c', action='store_true', default=False,
                        help='Produce a context format diff (default)')
    parser.add_argument('-u', action='store_true', default=False,
                        help='Produce a unified format diff')
    parser.add_argument('-m', action='store_true', default=False,
                        help='Produce HTML side by side diff '
                             '(can use -c and -l in conjunction)')
    parser.add_argument('-n', action='store_true', default=False,
                        help='Produce a ndiff format diff')
    parser.add_argument('-l', '--lines', type=int, default=3,
                        help='Set number of context lines (default 3)')
    parser.add_argument('fromfile')
    parser.add_argument('tofile')
    options = parser.parse_args()

    n = options.lines
    fromfile = options.fromfile
    tofile = options.tofile

    fromdate = file_mtime(fromfile)
    todate = file_mtime(tofile)
    with open(fromfile) as ff:
        fromlines = ff.readlines()
    with open(tofile) as tf:
        tolines = tf.readlines()

    if options.u:
        diff = difflib.unified_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)
    elif options.n:
        diff = difflib.ndiff(fromlines, tolines)
    elif options.m:
        diff = difflib.HtmlDiff().make_file(fromlines,tolines,fromfile,tofile,context=options.c,numlines=n)
    else:
        diff = difflib.context_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)

    sys.stdout.writelines(diff) 

def showDiff():
    s1 = request.args.get('s1', '')
    s2 = request.args.get('s2', '')
    p1 = Paste.Paste(s1)
    p2 = Paste.Paste(s2)
    maxLengthLine1 = p1.get_lines_info()[1]
    maxLengthLine2 = p2.get_lines_info()[1]
    if maxLengthLine1 > DiffMaxLineLength or maxLengthLine2 > DiffMaxLineLength:
        return "Can't make the difference as the lines are too long."
    htmlD = difflib.HtmlDiff()
    lines1 = p1.get_p_content().splitlines()
    lines2 = p2.get_p_content().splitlines()
    the_html = htmlD.make_file(lines1, lines2)
    return the_html 

def main():

    parser = argparse.ArgumentParser()
    parser.add_argument('-c', action='store_true', default=False,
                        help='Produce a context format diff (default)')
    parser.add_argument('-u', action='store_true', default=False,
                        help='Produce a unified format diff')
    parser.add_argument('-m', action='store_true', default=False,
                        help='Produce HTML side by side diff '
                             '(can use -c and -l in conjunction)')
    parser.add_argument('-n', action='store_true', default=False,
                        help='Produce a ndiff format diff')
    parser.add_argument('-l', '--lines', type=int, default=3,
                        help='Set number of context lines (default 3)')
    parser.add_argument('fromfile')
    parser.add_argument('tofile')
    options = parser.parse_args()

    n = options.lines
    fromfile = options.fromfile
    tofile = options.tofile

    fromdate = file_mtime(fromfile)
    todate = file_mtime(tofile)
    with open(fromfile) as ff:
        fromlines = ff.readlines()
    with open(tofile) as tf:
        tolines = tf.readlines()

    if options.u:
        diff = difflib.unified_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)
    elif options.n:
        diff = difflib.ndiff(fromlines, tolines)
    elif options.m:
        diff = difflib.HtmlDiff().make_file(fromlines,tolines,fromfile,tofile,context=options.c,numlines=n)
    else:
        diff = difflib.context_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)

    sys.stdout.writelines(diff) 

def compare(file1,file2,**args):
    if args.get('_py2_no_more_posargs', None) is not None:
        raise ValueError("Too many positional arguments passed.")


    # If any LAParams group arguments were passed, create an LAParams object and
    # populate with given args. Otherwise, set it to None.
    if args.get('laparams', None) is None:
        laparams = pdfminer3.layout.LAParams()
        for param in ("all_texts", "detect_vertical", "word_margin", "char_margin", "line_margin", "boxes_flow"):
            paramv = args.get(param, None)
            if paramv is not None:
                laparams[param]=paramv
        args['laparams']=laparams

    s1 = io.StringIO()
    with open(file1, "rb") as fp:
        pdfminer3.high_level.extract_text_to_fp(fp, s1, **args)

    s2 = io.StringIO()
    with open(file2, "rb") as fp:
        pdfminer3.high_level.extract_text_to_fp(fp, s2, **args)

    import difflib
    s1.seek(0)
    s2.seek(0)
    s1, s2=s1.readlines(), s2.readlines()

    import os.path
    try:
        extension = os.path.splitext(args['outfile'])[1][1:4]
        if extension.lower()=='htm':
            return difflib.HtmlDiff().make_file(s1, s2)
    except KeyError:
        pass
    return difflib.unified_diff(s1, s2, n=args['context_lines'])


# main 

def main():

    usage = "usage: %prog [options] fromfile tofile"
    parser = optparse.OptionParser(usage)
    parser.add_option("-c", action="store_true", default=False, help='Produce a context format diff (default)')
    parser.add_option("-u", action="store_true", default=False, help='Produce a unified format diff')
    parser.add_option("-m", action="store_true", default=False, help='Produce HTML side by side diff (can use -c and -l in conjunction)')
    parser.add_option("-n", action="store_true", default=False, help='Produce a ndiff format diff')
    parser.add_option("-l", "--lines", type="int", default=3, help='Set number of context lines (default 3)')
    (options, args) = parser.parse_args()

    if len(args) == 0:
        parser.print_help()
        sys.exit(1)
    if len(args) != 2:
        parser.error("need to specify both a fromfile and tofile")

    n = options.lines
    fromfile, tofile = args

    fromdate = time.ctime(os.stat(fromfile).st_mtime)
    todate = time.ctime(os.stat(tofile).st_mtime)
    fromlines = open(fromfile, 'U').readlines()
    tolines = open(tofile, 'U').readlines()

    if options.u:
        diff = difflib.unified_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)
    elif options.n:
        diff = difflib.ndiff(fromlines, tolines)
    elif options.m:
        diff = difflib.HtmlDiff().make_file(fromlines,tolines,fromfile,tofile,context=options.c,numlines=n)
    else:
        diff = difflib.context_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)

    sys.stdout.writelines(diff) 

def test_main():
    difflib.HtmlDiff._default_prefix = 0
    Doctests = doctest.DocTestSuite(difflib)
    run_unittest(
        TestWithAscii, TestAutojunk, TestSFpatches, TestSFbugs,
        TestOutputFormat, Doctests) 

def get(self, *args, **kwargs):
        config_id = self.get_argument('config_id', default=None, strip=True)
        history_id = self.get_argument('history_id', default=None, strip=True)
        if config_id or history_id:
            with DBContext('r') as session:
                config_info = session.query(KerriganConfig).filter(KerriganConfig.id == config_id).first()
                history_info = session.query(KerriganHistory).filter(KerriganHistory.id == history_id).first()

            if config_id:
                diff_data = config_info.content.splitlines()
                config_key = "/{}/{}/{}/{}".format(config_info.project_code, config_info.environment,
                                                   config_info.service,
                                                   config_info.filename)
            else:
                diff_data = history_info.content.splitlines()
                config_key = history_info.config

            with DBContext('r') as session:
                publish_info = session.query(KerriganPublish).filter(KerriganPublish.config == config_key).first()

            if not publish_info:
                html = difflib.HtmlDiff().make_file('', diff_data, context=True, numlines=3)
                return self.write(dict(code=0, msg='对比内容获取成功', data=html))

            src_data = publish_info.content.splitlines()
            html = difflib.HtmlDiff().make_file(src_data, diff_data, context=True, numlines=3)
            return self.write(dict(code=0, msg='对比内容获取成功', data=html))
        else:
            return self.write(dict(code=-1, msg='关键参数不能为空')) 

def diff_working(repo,file,src=source.PATH):
    store=repo.object_store
    index=repo.open_index()
    
    tree=store[store[repo.head()].tree]
    parent_tree=store[store[store[repo.head()].parents[0]].tree]
    
    tree_ver=store[tree.lookup_path(store.peel_sha,file)[1]].data


    local_ver=open(os.path.join(repo.path,file)).read()
    h=HtmlDiff(wrapcolumn=70,tabsize=4)
    if src==source.PATH:
        f=h.make_file(tree_ver.splitlines(),local_ver.splitlines(), file, 'last commit:'+repo.head())
    elif src==source.INDEX:
        index_ver=store[index._byname[file].sha].data
        f=h.make_file(tree_ver.splitlines(),index_ver.splitlines(),file+' staged change', 'last commit'+repo.head())
    else:
        parent_tree_ver=store[parent_tree.lookup_path(store.peel_sha,file)[1]].data
        f=h.make_file(parent_tree_ver.splitlines(),tree_ver.splitlines(), file+' HEAD','HEAD^1')        
    return f

#f=diff_working(porcelain.open_repo('.'),'gitui.py')
#w=ui.WebView()
#w.load_html(f)
#w.present() 

def _CompareSamples(a, b, context=True, numlines=1):
  """Generate an HTML table showing differences between 'a' and 'b'.

  Args:
    a: dict, as output by PerfKitBenchmarker.
    b: dict, as output by PerfKitBenchmarker.
    context: boolean. Show context in diff? If False, all lines are output, even
      those which are equal.
    numlines: int. Passed to difflib.Htmldiff.make_table.
  Returns:
    string or None. An HTML table, or None if there are no differences.
  """
  a = a.copy()
  b = b.copy()
  a['metadata'] = _SplitLabels(a.pop('labels', ''))
  b['metadata'] = _SplitLabels(b.pop('labels', ''))

  # Prune the keys in VARYING_KEYS prior to comparison to make the diff more
  # informative.
  for d in (a, b):
    for key in VARYING_KEYS:
      d.pop(key, None)

  astr = pprint.pformat(a).splitlines()
  bstr = pprint.pformat(b).splitlines()
  if astr == bstr and context:
    return None

  differ = difflib.HtmlDiff()
  return differ.make_table(astr, bstr, context=context, numlines=numlines) 

def main():

    parser = argparse.ArgumentParser()
    parser.add_argument('-c', action='store_true', default=False,
                        help='Produce a context format diff (default)')
    parser.add_argument('-u', action='store_true', default=False,
                        help='Produce a unified format diff')
    parser.add_argument('-m', action='store_true', default=False,
                        help='Produce HTML side by side diff '
                             '(can use -c and -l in conjunction)')
    parser.add_argument('-n', action='store_true', default=False,
                        help='Produce a ndiff format diff')
    parser.add_argument('-l', '--lines', type=int, default=3,
                        help='Set number of context lines (default 3)')
    parser.add_argument('fromfile')
    parser.add_argument('tofile')
    options = parser.parse_args()

    n = options.lines
    fromfile = options.fromfile
    tofile = options.tofile

    fromdate = file_mtime(fromfile)
    todate = file_mtime(tofile)
    with open(fromfile) as ff:
        fromlines = ff.readlines()
    with open(tofile) as tf:
        tolines = tf.readlines()

    if options.u:
        diff = difflib.unified_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)
    elif options.n:
        diff = difflib.ndiff(fromlines, tolines)
    elif options.m:
        diff = difflib.HtmlDiff().make_file(fromlines,tolines,fromfile,tofile,context=options.c,numlines=n)
    else:
        diff = difflib.context_diff(fromlines, tolines, fromfile, tofile, fromdate, todate, n=n)

    sys.stdout.writelines(diff) 

def test_main():
    difflib.HtmlDiff._default_prefix = 0
    Doctests = doctest.DocTestSuite(difflib)
    run_unittest(
        TestWithAscii, TestAutojunk, TestSFpatches, TestSFbugs,
        TestOutputFormat, Doctests) 

def test_main():
    difflib.HtmlDiff._default_prefix = 0
    Doctests = doctest.DocTestSuite(difflib)
    run_unittest(
        TestWithAscii, TestAutojunk, TestSFpatches, TestSFbugs,
        TestOutputFormat, TestJunkAPIs) 

def getDifferencesAsHTML(self, other, indent):
   
      import difflib
      diff_class = difflib.HtmlDiff(tabsize=3, wrapcolumn=200)
      
      diff_table = diff_class.make_table(self.instruction_lines, \
                                   other.instruction_lines, \
                                   fromdesc='Old', \
                                   todesc='New', \
                                   context=True, \
                                   numlines=1000)
   
      return postHighlightSourceCode(diff_table) 

def test_main():
    difflib.HtmlDiff._default_prefix = 0
    Doctests = doctest.DocTestSuite(difflib)
    run_unittest(
        TestWithAscii, TestAutojunk, TestSFpatches, TestSFbugs,
        TestOutputFormat, Doctests) 

def run(self, ctx):
        diff = HtmlDiff()
        async with aclosing(ctx.detector.changed.stream_events()) as stream:
            async for event in stream:
                difference = diff.make_file(event.old_lines, event.new_lines, context=True)
                await ctx.mailer.create_and_deliver(
                    subject='Change detected in %s' % event.source.url, html_body=difference)
                logger.info('Sent notification email') 

def test_main():
    difflib.HtmlDiff._default_prefix = 0
    Doctests = doctest.DocTestSuite(difflib)
    run_unittest(
        TestWithAscii, TestAutojunk, TestSFpatches, TestSFbugs,
        TestOutputFormat, Doctests) 

def test_make_file_usascii_charset_with_nonascii_input(self):
        html_diff = difflib.HtmlDiff()
        output = html_diff.make_file(patch914575_nonascii_from1.splitlines(),
                                     patch914575_nonascii_to1.splitlines(),
                                     charset='us-ascii')
        self.assertIn('content="text/html; charset=us-ascii"', output)
        self.assertIn('ımplıcıt', output) 

def test_make_file_iso88591_charset(self):
        html_diff = difflib.HtmlDiff()
        output = html_diff.make_file(patch914575_from1.splitlines(),
                                     patch914575_to1.splitlines(),
                                     charset='iso-8859-1')
        self.assertIn('content="text/html; charset=iso-8859-1"', output) 

def test_make_file_default_charset(self):
        html_diff = difflib.HtmlDiff()
        output = html_diff.make_file(patch914575_from1.splitlines(),
                                     patch914575_to1.splitlines())
        self.assertIn('content="text/html; charset=utf-8"', output)