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64 lines
1.4 KiB
Bash
64 lines
1.4 KiB
Bash
#
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# Adds a explain function and explainshell widget
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#
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# Authors
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# C Lentfort
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#
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function _expand_alias_recursive {
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local _alias
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for word in "$@"; do
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# Check if word is aliased
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_alias=$aliases[$word]
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if [ -n "$_alias" ]; then
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# Check if found alias and given command are identical
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if [[ "$_alias" != "${(j: :)@}" ]]; then
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_expand_alias_recursive "${(z)_alias}"
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else
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_explainshell_expanded_buffer+=$1
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fi
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else
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_explainshell_expanded_buffer+=$word
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fi
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done
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}
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function explain {
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local url
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# We don't explain empty buffers
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if (( $# == 0 )); then
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return 1;
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fi
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# Replace aliases with their actual expansions
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_explainshell_expanded_buffer=()
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_expand_alias_recursive $@
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_explainshell_expanded_buffer=(${(u)_explainshell_expanded_buffer})
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# base url with first command already injected
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# $ explain tar
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# => http://explainshel.com/explain/tar?args=
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url="http://explainshell.com/explain?cmd="
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# iterates over remaining args and adds builds the rest of the url
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for i in "$_explainshell_expanded_buffer"; do
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url=$url"$i""+"
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done
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unset _explainshell_expanded_buffer
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# opens url in browser
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$BROWSER -t $url &> /dev/null
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}
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function explainshell {
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explain ${(z)BUFFER}
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}
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zle -N explainshell
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zstyle -s ':prezto:module:explainshell' key-binding 'key_binding'
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if [[ -n "$key_binding" ]]; then
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bindkey "$key_binding" explainshell
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fi
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unset key_binding
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