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Add an option to remove duplicates from search

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Some users may prefer to keep duplicates in their zsh history, but
drop them from search.  The awk manual[0] recommends this.

[0] https://www.gnu.org/software/gawk/manual/html_node/History-Sorting.html
This commit is contained in:
Javi Merino
2022-05-12 07:42:17 +01:00
parent 76c6588204
commit 44b785e81b
2 changed files with 17 additions and 1 deletions
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17
zsh-fzf-history-search.zsh
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@@ -25,6 +25,10 @@ typeset -g ZSH_FZF_HISTORY_SEARCH_EVENT_NUMBERS=1
(( ! ${+ZSH_FZF_HISTORY_SEARCH_DATES_IN_SEARCH} )) &&
typeset -g ZSH_FZF_HISTORY_SEARCH_DATES_IN_SEARCH=1
# Remove duplicate entries in history
(( ! ${+ZSH_FZF_HISTORY_SEARCH_REMOVE_DUPLICATES} )) &&
typeset -g ZSH_FZF_HISTORY_SEARCH_REMOVE_DUPLICATES=''
fzf_history_search() {
setopt extendedglob
@@ -41,7 +45,18 @@ fzf_history_search() {
((CANDIDATE_LEADING_FIELDS+=2))
fi
candidates=(${(f)"$(fc ${=FC_ARGS} -1 0 | fzf ${=ZSH_FZF_HISTORY_SEARCH_FZF_ARGS} ${=ZSH_FZF_HISTORY_SEARCH_FZF_EXTRA_ARGS} -q "$BUFFER")"})
history_cmd="fc ${=FC_ARGS} -1 0"
if [ -n "${ZSH_FZF_HISTORY_SEARCH_REMOVE_DUPLICATES}" ];then
if (( $+commands[awk] )); then
history_cmd="$history_cmd | awk '!seen[\$0]++'"
else
# In case awk is not installed fallback to uniq. It will only remove commands that are repeated consecutively.
history_cmd="$history_cmd | uniq"
fi
fi
candidates=(${(f)"$(eval $history_cmd | fzf ${=ZSH_FZF_HISTORY_SEARCH_FZF_ARGS} ${=ZSH_FZF_HISTORY_SEARCH_FZF_EXTRA_ARGS} -q "$BUFFER")"})
local ret=$?
if [ -n "$candidates" ]; then
BUFFER="${candidates[@]/(#m)*/${${(As: :)MATCH}[${CANDIDATE_LEADING_FIELDS},-1]}}"