From 0c4f3acb281be6290c55a6e96bc29fab5b5c7a11 Mon Sep 17 00:00:00 2001 From: tv Date: Mon, 11 Sep 2023 18:24:28 +0200 Subject: stockholm -> hrm --- pkgs/simple/bash-fzf-history.nix | 107 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+) create mode 100644 pkgs/simple/bash-fzf-history.nix (limited to 'pkgs/simple/bash-fzf-history.nix') diff --git a/pkgs/simple/bash-fzf-history.nix b/pkgs/simple/bash-fzf-history.nix new file mode 100644 index 0000000..f35d5e8 --- /dev/null +++ b/pkgs/simple/bash-fzf-history.nix @@ -0,0 +1,107 @@ +{ 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 + + mylib = import ../../lib/pure.nix { + inherit lib; + }; + + 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}' ''; + }) -- cgit v1.2.3