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authorAvatar Kylie McClain <somasis@exherbo.org> 2016-07-21 18:42:07 -0400
committerAvatar Kylie McClain <somasis@exherbo.org> 2016-07-21 18:42:21 -0400
commitf42eb6ff7d33d2d5db1628e1b06b577e7a316cda (patch)
tree53a08d5613fee86296d7d895abe17ba7179aa57f
parentf1c6ba12f93ffc4d70b8855d1c7029bcf61acdac (diff)
downloadwww-f42eb6ff7d33d2d5db1628e1b06b577e7a316cda.tar.gz
www-f42eb6ff7d33d2d5db1628e1b06b577e7a316cda.tar.xz
filter: use pygments for syntax highlighting
-rw-r--r--cgit/filters/syntax-highlighting.py55
-rwxr-xr-xcgit/filters/syntax-highlighting.sh127
2 files changed, 55 insertions, 127 deletions
diff --git a/cgit/filters/syntax-highlighting.py b/cgit/filters/syntax-highlighting.py
new file mode 100644
index 0000000..a5791c1
--- /dev/null
+++ b/cgit/filters/syntax-highlighting.py
@@ -0,0 +1,55 @@
+#!/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')
+sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
+data = sys.stdin.read()
+filename = sys.argv[1]
+formatter = HtmlFormatter(style='paraiso-dark')
+
+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))
diff --git a/cgit/filters/syntax-highlighting.sh b/cgit/filters/syntax-highlighting.sh
deleted file mode 100755
index d503c30..0000000
--- a/cgit/filters/syntax-highlighting.sh
+++ /dev/null
@@ -1,127 +0,0 @@
-#!/bin/sh
-#
-# This is the verbatim syntax-highlighting.sh filter coming with cgit, adapted
-# only for use of highlight 3 and for enabling the moria style that works for
-# our dark backgrounds.
-# - Bo ├śrsted Andresen
-#
-# This script can be used to implement syntax highlighting in the cgit
-# tree-view by refering to this file with the source-filter or repo.source-
-# filter options in cgitrc.
-#
-# This script requires a shell supporting the ${var##pattern} syntax.
-# It is supported by at least dash and bash, however busybox environments
-# might have to use an external call to sed instead.
-#
-# Note: the highlight command (http://www.andre-simon.de/) uses css for syntax
-# highlighting, so you'll probably want something like the following included
-# in your css file:
-#
-# Style definition file generated by highlight 2.4.8, http://www.andre-simon.de/
-#
-# table.blob .num { color:#2928ff; }
-# table.blob .esc { color:#ff00ff; }
-# table.blob .str { color:#ff0000; }
-# table.blob .dstr { color:#818100; }
-# table.blob .slc { color:#838183; font-style:italic; }
-# table.blob .com { color:#838183; font-style:italic; }
-# table.blob .dir { color:#008200; }
-# table.blob .sym { color:#000000; }
-# table.blob .kwa { color:#000000; font-weight:bold; }
-# table.blob .kwb { color:#830000; }
-# table.blob .kwc { color:#000000; font-weight:bold; }
-# table.blob .kwd { color:#010181; }
-#
-#
-# Style definition file generated by highlight 2.6.14, http://www.andre-simon.de/
-#
-# body.hl { background-color:#ffffff; }
-# pre.hl { color:#000000; background-color:#ffffff; font-size:10pt; font-family:'Courier New';}
-# .hl.num { color:#2928ff; }
-# .hl.esc { color:#ff00ff; }
-# .hl.str { color:#ff0000; }
-# .hl.dstr { color:#818100; }
-# .hl.slc { color:#838183; font-style:italic; }
-# .hl.com { color:#838183; font-style:italic; }
-# .hl.dir { color:#008200; }
-# .hl.sym { color:#000000; }
-# .hl.line { color:#555555; }
-# .hl.mark { background-color:#ffffbb;}
-# .hl.kwa { color:#000000; font-weight:bold; }
-# .hl.kwb { color:#830000; }
-# .hl.kwc { color:#000000; font-weight:bold; }
-# .hl.kwd { color:#010181; }
-#
-#
-# Style definition file generated by highlight 3.8, http://www.andre-simon.de/
-#
-# body.hl { background-color:#e0eaee; }
-# pre.hl { color:#000000; background-color:#e0eaee; font-size:10pt; font-family:'Courier New';}
-# .hl.num { color:#b07e00; }
-# .hl.esc { color:#ff00ff; }
-# .hl.str { color:#bf0303; }
-# .hl.pps { color:#818100; }
-# .hl.slc { color:#838183; font-style:italic; }
-# .hl.com { color:#838183; font-style:italic; }
-# .hl.ppc { color:#008200; }
-# .hl.opt { color:#000000; }
-# .hl.lin { color:#555555; }
-# .hl.kwa { color:#000000; font-weight:bold; }
-# .hl.kwb { color:#0057ae; }
-# .hl.kwc { color:#000000; font-weight:bold; }
-# .hl.kwd { color:#010181; }
-#
-#
-# Style definition file generated by highlight 3.13, http://www.andre-simon.de/
-#
-# body.hl { background-color:#e0eaee; }
-# pre.hl { color:#000000; background-color:#e0eaee; font-size:10pt; font-family:'Courier New',monospace;}
-# .hl.num { color:#b07e00; }
-# .hl.esc { color:#ff00ff; }
-# .hl.str { color:#bf0303; }
-# .hl.pps { color:#818100; }
-# .hl.slc { color:#838183; font-style:italic; }
-# .hl.com { color:#838183; font-style:italic; }
-# .hl.ppc { color:#008200; }
-# .hl.opt { color:#000000; }
-# .hl.ipl { color:#0057ae; }
-# .hl.lin { color:#555555; }
-# .hl.kwa { color:#000000; font-weight:bold; }
-# .hl.kwb { color:#0057ae; }
-# .hl.kwc { color:#000000; font-weight:bold; }
-# .hl.kwd { color:#010181; }
-#
-#
-# 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 )
-#
-
-# store filename and extension in local vars
-BASENAME="$1"
-EXTENSION="${BASENAME##*.}"
-
-[ "${BASENAME}" = "${EXTENSION}" ] && EXTENSION=txt
-[ -z "${EXTENSION}" ] && EXTENSION=txt
-
-# map Makefile and Makefile.* to .mk
-[ "${BASENAME%%.*}" = "Makefile" ] && EXTENSION=mk
-
-# highlight versions 2 and 3 have different commandline options. Specifically,
-# the -X option that is used for version 2 is replaced by the -O xhtml option
-# for version 3.
-#
-# Version 2 can be found (for example) on EPEL 5, while version 3 can be
-# found (for example) on EPEL 6.
-#
-# This is for version 2
-#exec highlight --force -f -I -X -S "$EXTENSION" 2>/dev/null
-
-# This is for version 3
-exec highlight --force -f --inline-css --style moria -I -O xhtml -S "$EXTENSION" 2>/dev/null