cgit/filters/syntax-highlighting.sh

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#!/bin/sh
# 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 (generated by highlight 2.4.8 and adapted for cgit):
#
# 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; }
#
# 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##*.}"
# map Makefile and Makefile.* to .mk
[ "${BASENAME%%.*}" == "Makefile" ] && EXTENSION=mk
exec highlight --force -f -I -X -S $EXTENSION 2>/dev/null