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#!/usr/bin/env python
"""This script is for use as a source-filter or repo.source-filter for cgit.
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 re
from pygments import highlight
from pygments.formatters import HtmlFormatter
from pygments.lexers import (
CommonLispLexer,
SchemeLexer,
TextLexer,
get_lexer_by_name,
guess_lexer,
guess_lexer_for_filename,
)
from pygments.lexers.shell import BashLexer
from pygments.util import ClassNotFound, shebang_matches
def modeline_matches(text, regex):
line_1_index = text.find("\n")
line_2_index = text.find("\n", line_1_index + 1)
regex = re.compile(r"-*- .*?%s.* -*-" % regex, re.IGNORECASE)
if line_1_index >= 0:
first_line = text[:line_1_index].lower()
second_line = text[line_1_index:line_2_index].lower()
else:
first_line = text.lower()
second_line = ""
return (
regex.search(first_line) is not None
or regex.search(second_line) is not None
)
CommonLispLexer.filenames.append("*.asd")
CommonLispLexer.filenames.append(".stumpwmrc")
BashLexer.filenames.append("PKGBUILD")
BashLexer.filenames.append("*.install")
BashLexer.filenames.append(".zshrc")
BashLexer.filenames.append(".zprofile")
data = sys.stdin.read()
filename = sys.argv[1]
formatter = HtmlFormatter(encoding="utf-8", style="autumn")
try:
if filename == "CMakeLists.txt":
lexer = get_lexer_by_name("cmake")
elif (
shebang_matches(data, r"guile")
or modeline_matches(data, r"mode: scheme")
or shebang_matches(data, r"scsh")
):
lexer = SchemeLexer()
else:
lexer = guess_lexer_for_filename(filename, data, encoding="utf-8")
except ClassNotFound:
# Check if there is any shebang
if data[0:2] == "#!":
lexer = guess_lexer(data, encoding="utf-8")
else:
lexer = TextLexer(encoding="utf-8")
except TypeError:
lexer = TextLexer(encoding="utf-8")
# print out 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).decode("utf-8"))
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