cgit.a.o: bump Alpine base { 3.15 --> edge } [TEMPORARY] for Python 3.10....

cgit.a.o: bump Alpine base { 3.15 --> edge } [TEMPORARY] for Python 3.10. fixes #6 APKBUILD highlighting.

cgit.adelielinux.org/Dockerfile

-FROM alpine:3.15
+# FIXME: 'edge' is for Python 3.10 (temporary)
+FROM alpine:edge
 MAINTAINER Zach van Rijn <me@zv.io>
 
 RUN apk update && apk upgrade && apk add \
@@ -15,4 +16,6 @@ RUN git clone https://git.zx2c4.com/cgit \
 COPY cgitrc        /etc/cgitrc
 COPY lighttpd.conf /etc/lighttpd/lighttpd.conf
 
+COPY pygments.py   /usr/local/lib/cgit/filters/syntax-highlighting.py
+
 ENTRYPOINT /usr/sbin/lighttpd -D -f /etc/lighttpd/lighttpd.conf

cgit.adelielinux.org/pygments.py

+#!/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
+import pygments.lexers
+from pygments import highlight
+from pygments.lexers import guess_lexer
+from pygments.lexers import guess_lexer_for_filename
+from pygments.util import ClassNotFound
+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:
+	# requires Python >= 3.10
+	match filename:
+		case "APKBUILD":
+			lexer = pygments.lexers.shell.BashLexer()
+		case _:
+			lexer = guess_lexer(data)
+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))