84 lines
2.7 KiB
Bash
Executable File
84 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# Best effort auto-pygmentization with transparent decompression
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# by Reuben Thomas 2008-2015
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# This program is in the public domain.
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# Strategy: first see if pygmentize can find a lexer; if not, ask file; if that finds nothing, fail
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# Set the environment variable PYGMENTIZE_OPTS or pass options before the file path to configure pygments.
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# This program can be used as a .lessfilter for the less pager to auto-color less's output
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file="${!#}" # last argument
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options=${@:1:$(($#-1))} # handle others args as options to pass to pygmentize
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file_common_opts="--brief --dereference"
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lexer=$(pygmentize -N "$file")
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if [[ "$lexer" == text ]]; then
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unset lexer
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case $(file --mime-type --uncompress $file_common_opts "$file") in
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application/xml|image/svg+xml) lexer=xml;;
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application/javascript) lexer=javascript;;
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text/html) lexer=html;;
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text/troff) lexer=nroff;;
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text/x-asm) lexer=nasm;;
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text/x-awk) lexer=awk;;
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text/x-c) lexer=c;;
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text/x-c++) lexer=cpp;;
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text/x-diff) lexer=diff;;
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text/x-fortran) lexer=fortran;;
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text/x-gawk) lexer=gawk;;
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text/x-java) lexer=java;;
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text/x-lisp) lexer=common-lisp;;
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text/x-lua) lexer=lua;;
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text/x-makefile) lexer=make;;
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text/x-msdos-batch) lexer=bat;;
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text/x-nawk) lexer=nawk;;
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text/x-pascal) lexer=pascal;;
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text/x-perl) lexer=perl;;
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text/x-php) lexer=php;;
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text/x-po) lexer=po;;
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text/x-python) lexer=python;;
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text/x-ruby) lexer=ruby;;
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text/x-shellscript) lexer=sh;;
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text/x-tcl) lexer=tcl;;
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text/x-tex|text/x-texinfo) lexer=latex;; # FIXME: texinfo really needs its own lexer
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# Types that file outputs which pygmentize didn't support as of file 5.20, pygments 2.0
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# text/calendar
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# text/inf
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# text/PGP
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# text/rtf
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# text/texmacs
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# text/vnd.graphviz
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# text/x-bcpl
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# text/x-info
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# text/x-m4
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# text/x-vcard
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# text/x-xmcd
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text/plain) # special filenames. TODO: insert more
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case $(basename "$file") in
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.zshrc) lexer=sh;;
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esac
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;;
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esac
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fi
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encoding=$(file --mime-encoding --uncompress $file_common_opts "$file")
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if [[ $encoding == "us-asciibinarybinary" ]]; then
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encoding="us-ascii"
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fi
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if [[ -n "$lexer" ]]; then
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concat=cat
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case $(file $file_common_opts --mime-type "$file") in
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application/x-gzip) concat=zcat;;
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application/x-bzip2) concat=bzcat;;
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application/x-xz) concat=xzcat;;
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esac
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exec $concat "$file" | pygmentize -O inencoding=$encoding $PYGMENTIZE_OPTS $options -l $lexer
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fi
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exit 1
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