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|
with import <stockholm/lib>;
{ pkgs
, edit-key ? "ctrl-e"
, exec-key ? "enter"
, edit-mark ? "${mark-prefix}${edit-key}"
, exec-mark ? "${mark-prefix}${exec-key}"
, edit-command ? "\"\""
, exec-command ? "accept-line"
, mark-prefix ? " #FZFKEY:"
, finish-keyseq ? "\\C-x\\C-p"
, rebind-keyseq ? "\\C-x\\C-o"
, start-keyseq ? "\\C-f"
, load-keyseq ? start-keyseq
}: let
script = pkgs.writeBash "bash-fzf-history.sh" ''
if ! command -v fzf >/dev/null; then
# Alternatively rewrite ${pkgs.fzf}/share/fzf/* to use absolute paths.
fzf() {
${pkgs.fzf}/bin/fzf "$@"
}
fi
. ${pkgs.fzf}/share/fzf/key-bindings.bash
. ${pkgs.fzf}/share/fzf/completion.bash
FZF_DEFAULT_OPTS='${toString [
/* sh */ "--height=40%"
/* sh */ "--inline-info"
/* sh */ "--min-height=4"
/* sh */ "--reverse"
]}'
__fzf_history__() (
IFS=$'\n'
result=( $(
# To add "unknown timestamps" to each line of the history:
# sed -i '/^#[0-9]/{n;b};s/^/#1\n/' "$HISTFILE"
HISTTIMEFORMAT=$'\e[38;5;244m%Y-%m-%dT%H:%M:%S\e[m ' history |
${pkgs.gnused}/bin/sed '
s/\(\x1b\[[0-9;]*\)244m1970-[0-9T:-]*/\1237m????-??-??T??:??:??/
' |
FZF_DEFAULT_OPTS="${toString [
/* sh */ "--ansi"
/* sh */ "--tac"
/* sh */ "--sync"
/* sh */ "-n2..,.."
/* sh */ "--tiebreak=index"
/* sh */ "--bind=ctrl-r:toggle-sort"
/* sh */ "--expect=${edit-key},${exec-key}"
/* sh */ "$FZF_DEFAULT_OPTS"
/* sh */ "+m"
]}" \
${pkgs.fzf}/bin/fzf |
${pkgs.gnused}/bin/sed '
/^ *[0-9]/{
s/^ *//
s/ \+/\n/;# index
s/ \+/\n/;# date
}
'
) )
if test -n "$result"; then
key=''${result[0]}
index=''${result[1]}
date=''${result[2]}
command=''${result[3]}
echo "$command${mark-prefix}$key"
else
# Ensure no empty new line gets produced when fzf was aborted.
echo '${edit-mark}'
fi
)
__fzf_rebind_finish_keyseq__() {
local suffix=
case $READLINE_LINE in
*'${edit-mark}')
suffix='${edit-mark}'
bind '"${finish-keyseq}": ${edit-command}'
;;
*'${exec-mark}')
suffix='${exec-mark}'
bind '"${finish-keyseq}": ${exec-command}'
;;
esac
READLINE_LINE=${"\${READLINE_LINE:0:-\${#suffix}}"}
}
bind -x '"${rebind-keyseq}": __fzf_rebind_finish_keyseq__'
bind '"\C-r": reverse-search-history'
bind '"${start-keyseq}": " \C-e\C-u\C-y\ey\C-u`__fzf_history__`\e\C-e\er\e^${rebind-keyseq}${finish-keyseq}"'
echo '# fzf key bindings loaded:' >&2
bind -s | ${pkgs.gnugrep}/bin/grep __fzf_ >&2
'';
in
script.overrideAttrs (old: rec {
bind = /* sh */ ''bind -x '"${load-keyseq}": . ${script}' '';
})
|
