zshrc: Add fzf support for history

Signed-off-by: Florian Pritz <bluewind@xinu.at>

1 files changed, 39 insertions, 4 deletions

diff --git a/.zshrc b/.zshrc
index c7dd720..48c45ba 100644
--- a/.zshrc
+++ b/.zshrc
@@ -194,6 +194,36 @@ globalias() {
 zle -N globalias
 bindkey ",," globalias
 
+# Source: https://github.com/junegunn/fzf/blob/master/shell/key-bindings.zsh
+__fzf_use_tmux__() {
+  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ]
+}
+
+__fzfcmd() {
+  __fzf_use_tmux__ &&
+    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-95%}" || echo "fzf"
+}
+
+# CTRL-R - Paste the selected command from history into the command line
+# Changed to work with my personal history fetcher
+fzf-history-widget() {
+  local selected num
+  setopt localoptions noglobsubst noposixbuiltins pipefail 2> /dev/null
+  selected=( $(cat-history-notime |
+    FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-95%} $FZF_DEFAULT_OPTS --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
+  local ret=$?
+  if [ -n "$selected" ]; then
+	zle kill-buffer
+	BUFFER="$selected"
+  fi
+  zle redisplay
+  typeset -f zle-line-init >/dev/null && zle zle-line-init
+  return $ret
+}
+zle     -N   fzf-history-widget
+bindkey '^R' fzf-history-widget
+
+
 # }}}
 # Variables {{{
 #export CDPATH=.:$HOME
@@ -358,12 +388,17 @@ cget() {
 	curl -fJOL --compressed "$@"
 }
 
-hgrep() {
-	mpgrep <$HISTFILE "$@" | less
+cat-history() {
+	local histfiles=($(ls -t1 "$HISTORYDIRECTORY"/*))
+	cat "${histfiles[@]}"
 }
 
-hless() {
-	less $HISTFILE
+cat-history-notime() {
+	cat-history "$@" | sed 's/^: [0-9]\+:0;//'
+}
+
+hgrep() {
+	cat-history | mpgrep "$@" | less
 }
 
 # }}}