aboutsummaryrefslogtreecommitdiffstats
path: root/filters/syntax-highlighting.py
blob: e912594c48a71fce1baffb11149ab9b72cc223d4 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
#!/usr/bin/env python3

# This script uses Pygments and Python3. You must have both installed
# for this to work.
#
# http://pygments.org/
# http://python.org/
#
# It may be used with the source-filter or repo.source-filter settings
# in cgitrc.
#
# The following environment variables can be used to retrieve the
# configuration of the repository for which this script is called:
# CGIT_REPO_URL        ( = repo.url       setting )
# CGIT_REPO_NAME       ( = repo.name      setting )
# CGIT_REPO_PATH       ( = repo.path      setting )
# CGIT_REPO_OWNER      ( = repo.owner     setting )
# CGIT_REPO_DEFBRANCH  ( = repo.defbranch setting )
# CGIT_REPO_SECTION    ( = section        setting )
# CGIT_REPO_CLONE_URL  ( = repo.clone-url setting )


import sys
import io
from pygments import highlight
from pygments.util import ClassNotFound
from pygments.lexers import TextLexer
from pygments.lexers import guess_lexer
from pygments.lexers import guess_lexer_for_filename
from pygments.formatters import HtmlFormatter


sys.stdin = io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8', errors='replace')
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace')
data = sys.stdin.read()
filename = sys.argv[1]
formatter = HtmlFormatter(style='pastie', nobackground=True)

try:
	lexer = guess_lexer_for_filename(filename, data)
except ClassNotFound:
	# check if there is any shebang
	if data[0:2] == '#!':
		lexer = guess_lexer(data)
	else:
		lexer = TextLexer()
except TypeError:
	lexer = TextLexer()

# highlight! :-)
# printout pygments' css definitions as well
sys.stdout.write('<style>')
sys.stdout.write(formatter.get_style_defs('.highlight'))
sys.stdout.write('</style>')
sys.stdout.write(highlight(data, lexer, formatter, outfile=None))