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[shell] improve mawk detection #3463

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merged 6 commits into from
Oct 7, 2023
Merged

[shell] improve mawk detection #3463

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b5d3852
[shell] improve mawk detection
step- Oct 6, 2023
4a797e8
replace x with redirection to /dev/null
step- Oct 7, 2023
614af52
Update shell/key-bindings.bash
junegunn Oct 7, 2023
c7e1f0b
Update shell/key-bindings.bash
junegunn Oct 7, 2023
09dd8af
Update shell/key-bindings.bash
junegunn Oct 7, 2023
3462876
Apply suggestions from code review
junegunn Oct 7, 2023
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40 changes: 21 additions & 19 deletions shell/key-bindings.bash
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Original file line number Diff line number Diff line change
Expand Up @@ -48,15 +48,15 @@ __fzf_cd__() {
dir=$(set +o pipefail; eval "$cmd" | FZF_DEFAULT_OPTS="$opts" $(__fzfcmd)) && printf 'builtin cd -- %q' "$dir"
}

if command -v perl > /dev/null; then
if command -v perl > /dev/null ; then
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__fzf_history__() {
local output opts script
opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} -n2..,.. --scheme=history --bind=ctrl-r:toggle-sort ${FZF_CTRL_R_OPTS-} +m --read0"
script='BEGIN { getc; $/ = "\n\t"; $HISTCOUNT = $ENV{last_hist} + 1 } s/^[ *]//; print $HISTCOUNT - $. . "\t$_" if !$seen{$_}++'
output=$(
set +o pipefail
builtin fc -lnr -2147483648 |
last_hist=$(HISTTIMEFORMAT='' builtin history 1) perl -n -l0 -e "$script" |
last_hist=$(HISTTIMEFORMAT='' builtin history 1) command perl -n -l0 -e "$script" |
FZF_DEFAULT_OPTS="$opts" $(__fzfcmd) --query "$READLINE_LINE"
) || return
READLINE_LINE=${output#*$'\t'}
Expand All @@ -66,16 +66,14 @@ if command -v perl > /dev/null; then
READLINE_POINT=0x7fffffff
fi
}
else # awk
elif command -v awk > /dev/null || command -v mawk > /dev/null ; then # awk - fallback for POSIX systems
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__fzf_history__() {
local output opts script
local output opts script n x y z d
if [[ -z $__fzf_awk ]]; then
__fzf_awk=awk
# if installed, mawk is faster
command -v mawk > /dev/null &&
mawk --version | # at least 1.3.4
awk 'NR == 1 { split($2, a, "."); v=(a[1]*1000000+ a[2]*1000+ a[3]*1); exit !(v >= 1003004) }' &&
__fzf_awk=mawk
# choose the faster mawk if: it's installed && build date >= 20230322 && version >= 1.3.4
IFS=' .' read n x y z d <<< $(command mawk -W version 2> /dev/null)
[[ $n == mawk ]] && (( d >= 20230302 && (x *1000 +y) *1000 +z >= 1003004 )) && __fzf_awk=mawk
fi
opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} -n2..,.. --scheme=history --bind=ctrl-r:toggle-sort ${FZF_CTRL_R_OPTS-} +m --read0"
[[ $(HISTTIMEFORMAT='' builtin history 1) =~ [[:digit:]]+ ]] # how many history entries
Expand All @@ -86,8 +84,8 @@ else # awk
END { if (NR) P(b) }'
output=$(
set +o pipefail
builtin fc -lnr -2147483648 2> /dev/null | # ( $'\t '<lines>$'\n' )* ; <lines> ::= [^\n]* ( $'\n'<lines> )*
$__fzf_awk "$script" | # ( <counter>$'\t'<lines>$'\000' )*
builtin fc -lnr -2147483648 2> /dev/null | # ( $'\t '<lines>$'\n' )* ; <lines> ::= [^\n]* ( $'\n'<lines> )*
command $__fzf_awk "$script" | # ( <counter>$'\t'<lines>$'\000' )*
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FZF_DEFAULT_OPTS="$opts" $(__fzfcmd) --query "$READLINE_LINE"
) || return
READLINE_LINE=${output#*$'\t'}
Expand All @@ -112,20 +110,24 @@ if (( BASH_VERSINFO[0] < 4 )); then
bind -m vi-command '"\C-t": "\C-z\C-t\C-z"'
bind -m vi-insert '"\C-t": "\C-z\C-t\C-z"'

# CTRL-R - Paste the selected command from history into the command line
bind -m emacs-standard '"\C-r": "\C-e \C-u\C-y\ey\C-u`__fzf_history__`\e\C-e\er"'
bind -m vi-command '"\C-r": "\C-z\C-r\C-z"'
bind -m vi-insert '"\C-r": "\C-z\C-r\C-z"'
if [[ $(type -t __fzf_history__) == function ]]; then
# CTRL-R - Paste the selected command from history into the command line
bind -m emacs-standard '"\C-r": "\C-e \C-u\C-y\ey\C-u`__fzf_history__`\e\C-e\er"'
bind -m vi-command '"\C-r": "\C-z\C-r\C-z"'
bind -m vi-insert '"\C-r": "\C-z\C-r\C-z"'
fi
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else
# CTRL-T - Paste the selected file path into the command line
bind -m emacs-standard -x '"\C-t": fzf-file-widget'
bind -m vi-command -x '"\C-t": fzf-file-widget'
bind -m vi-insert -x '"\C-t": fzf-file-widget'

# CTRL-R - Paste the selected command from history into the command line
bind -m emacs-standard -x '"\C-r": __fzf_history__'
bind -m vi-command -x '"\C-r": __fzf_history__'
bind -m vi-insert -x '"\C-r": __fzf_history__'
if [[ $(type -t __fzf_history__) == function ]]; then
# CTRL-R - Paste the selected command from history into the command line
bind -m emacs-standard -x '"\C-r": __fzf_history__'
bind -m vi-command -x '"\C-r": __fzf_history__'
bind -m vi-insert -x '"\C-r": __fzf_history__'
fi
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fi

# ALT-C - cd into the selected directory
Expand Down