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