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colorize: add ability to colorize multiple files into less (#7662)
cless is an alias for a colorized less wrappper: colorize_via_pygmentize_less. Note that cless opens many files as independent files, navigatable with `:n` and `:p`.
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@ -2,6 +2,10 @@
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With this plugin you can syntax-highlight file contents of over 300 supported languages and other text formats.
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With this plugin you can syntax-highlight file contents of over 300 supported languages and other text formats.
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Colorize will highlight the content based on the filename extension. If it can't find a syntax-highlighting
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method for a given extension, it will try to find one by looking at the file contents. If no highlight method
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is found it will just cat the file normally, without syntax highlighting.
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To use it, add colorize to the plugins array of your zshrc file:
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To use it, add colorize to the plugins array of your zshrc file:
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```
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```
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plugins=(... colorize)
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plugins=(... colorize)
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@ -9,9 +13,16 @@ plugins=(... colorize)
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## Usage
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## Usage
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* `ccat <file> [files]`: colorize the contents of the file (or files, if more than one are provided). If no arguments are passed it will colorize the standard input or stdin.
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* `ccat <file> [files]`: colorize the contents of the file (or files, if more than one are provided).
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If no arguments are passed it will colorize the standard input or stdin.
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Colorize will highlight the content based on the filename extension. If it can't find a syntax-highlighting method for a given extension, it will try to find one by looking at the file contents. If no highlight method is found it will just cat the file normally, without syntax highlighting.
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* `cless <file> [files]`: colorize the contents of the file (or files, if more than one are provided) and
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open less. If no arguments are passed it will colorize the standard input or stdin.
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Note that `cless` will behave as less when provided more than one file: you have to navigate files with
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the commands `:n` for next and `:p` for previous. The downside is that less options are not supported.
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But you can circumvent this by either using the LESS environment variable, or by running `ccat file1 file2|less --opts`.
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In the latter form, the file contents will be concatenated and presented by less as a single file.
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## Requirements
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## Requirements
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@ -1,5 +1,6 @@
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# easier alias to use the plugin
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# easier alias to use the plugin
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alias ccat='colorize_via_pygmentize'
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alias ccat='colorize_via_pygmentize'
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alias cless='colorize_via_pygmentize_less'
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colorize_via_pygmentize() {
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colorize_via_pygmentize() {
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if ! (( $+commands[pygmentize] )); then
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if ! (( $+commands[pygmentize] )); then
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@ -16,7 +17,7 @@ colorize_via_pygmentize() {
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# guess lexer from file extension, or
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# guess lexer from file extension, or
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# guess it from file contents if unsuccessful
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# guess it from file contents if unsuccessful
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local FNAME lexer
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local FNAME lexer
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for FNAME in $@
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for FNAME in "$@"
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do
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do
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lexer=$(pygmentize -N "$FNAME")
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lexer=$(pygmentize -N "$FNAME")
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if [[ $lexer != text ]]; then
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if [[ $lexer != text ]]; then
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@ -26,3 +27,23 @@ colorize_via_pygmentize() {
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fi
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fi
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done
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done
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}
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}
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colorize_via_pygmentize_less() (
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# this function is a subshell so tmp_files can be shared to cleanup function
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declare -a tmp_files
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cleanup () {
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[[ ${#tmp_files} -gt 0 ]] && rm -f "${tmp_files[@]}"
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exit
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}
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trap 'cleanup' EXIT HUP TERM INT
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while (( $# != 0 )); do #TODO: filter out less opts
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tmp_file="$(mktemp --tmpdir "tmp.colorize.XXXX.$(sed 's/\//./g' <<< "$1")")"
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tmp_files+=("$tmp_file")
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colorize_via_pygmentize "$1" > "$tmp_file"
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shift 1
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done
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less -f "${tmp_files[@]}"
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)
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