48 lines
2.1 KiB
Fish
48 lines
2.1 KiB
Fish
# This function expects the following two arguments:
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# argument 1 = output of (set --show | psub), i.e. a file with the scope info and values of all variables
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# argument 2 = output of (set --names | psub), i.e. a file with all variable names
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function _fzf_search_variables --argument-names set_show_output set_names_output --description "Search and preview shell variables. Replace the current token with the selected variable."
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if test -z "$set_names_output"
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printf '%s\n' '_fzf_search_variables requires 2 arguments.' >&2
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commandline --function repaint
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return 22 # 22 means invalid argument in POSIX
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end
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# Exclude the history variable from being piped into fzf because
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# 1. it's not included in $set_names_output
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# 2. it tends to be a very large value => increases computation time
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# 3._fzf_search_history is a much better way to examine history anyway
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set -f all_variable_names (string match --invert history <$set_names_output)
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set -f current_token (commandline --current-token)
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# Use the current token to pre-populate fzf's query. If the current token begins
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# with a $, remove it from the query so that it will better match the variable names
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set -f cleaned_curr_token (string replace -- '$' '' $current_token)
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set -f variable_names_selected (
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printf '%s\n' $all_variable_names |
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_fzf_wrapper --preview "_fzf_extract_var_info {} $set_show_output" \
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--prompt="Variables> " \
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--preview-window="wrap" \
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--multi \
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--query=$cleaned_curr_token \
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$fzf_variables_opts
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)
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if test $status -eq 0
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# If the current token begins with a $, do not overwrite the $ when
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# replacing the current token with the selected variable.
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# Uses brace expansion to prepend $ to each variable name.
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commandline --current-token --replace (
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if string match --quiet -- '$*' $current_token
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string join " " \${$variable_names_selected}
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else
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string join " " $variable_names_selected
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end
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)
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end
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commandline --function repaint
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end
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