From 5e7e75803b6caaa79988165af1af68a896074b0f Mon Sep 17 00:00:00 2001
From: Bart Brouns <bart@magnetophon.nl>
Date: Mon, 11 Dec 2017 03:53:57 +0100
Subject: [PATCH] added fco_preview: might be really bad code, but it "works
 for me!"

---
 Examples.md | 27 ++++++++++++++++++++++-----
 1 file changed, 22 insertions(+), 5 deletions(-)

diff --git a/Examples.md b/Examples.md
index 2c1e664..e0258fc 100644
--- a/Examples.md
+++ b/Examples.md
@@ -244,7 +244,7 @@ Replacing `eval` with `print -z` will push the arguments onto the editing buffer
 
 #### With write to terminal capabilities
 
-These have been tested in bash. 
+These have been tested in bash.
 
 ```sh
 # fh - repeat history
@@ -385,6 +385,24 @@ fco() {
     fzf-tmux -l30 -- --no-hscroll --ansi +m -d "\t" -n 2) || return
   git checkout $(echo "$target" | awk '{print $2}')
 }
+
+
+# fco_preview - checkout git branch/tag, with a preview showing the commits between the tag/branch and HEAD
+fco_preview() {
+  local tags branches target
+  tags=$(
+git tag | awk '{print "\x1b[31;1mtag\x1b[m\t" $1}') || return
+  branches=$(
+git branch --all | grep -v HEAD |
+sed "s/.* //" | sed "s#remotes/[^/]*/##" |
+sort -u | awk '{print "\x1b[34;1mbranch\x1b[m\t" $1}') || return
+  target=$(
+(echo "$tags"; echo "$branches") |
+    fzf --no-hscroll --no-multi --delimiter="\t" -n 2 \
+        --preview="git log -200 --pretty=format:%s $(echo {+2..} |  sed 's/$/../' )" ) || return
+  git checkout $(echo "$target" | awk '{print $2}')
+}
+
 ```
 
 ```sh
@@ -481,7 +499,7 @@ ftags() {
 
 tm() {
   [[ -n "$TMUX" ]] && change="switch-client" || change="attach-session"
-  if [ $1 ]; then 
+  if [ $1 ]; then
     tmux $change -t "$1" 2>/dev/null || (tmux new-session -d -s $1 && tmux $change -t "$1"); return
   fi
   session=$(tmux list-sessions -F "#{session_name}" 2>/dev/null | fzf --exit-0) &&  tmux $change -t "$session" || echo "No sessions found."
@@ -887,7 +905,7 @@ _fzf_marker_main_widget() {
     _fzf_marker_placeholder
   else
     local selected
-    if selected=$(cat ${FZF_MARKER_CONF_DIR:-~/.config/marker}/*.txt | 
+    if selected=$(cat ${FZF_MARKER_CONF_DIR:-~/.config/marker}/*.txt |
       sed -e "s/\(^[a-zA-Z0-9_-]\+\)\s/${FZF_MARKER_COMMAND_COLOR:-\x1b[38;5;255m}\1\x1b[0m /" \
           -e "s/\s*\(#\+\)\(.*\)/${FZF_MARKER_COMMENT_COLOR:-\x1b[38;5;8m}  \1\2\x1b[0m/" |
       fzf --bind 'tab:down,btab:up' --height=80% --ansi -q "$LBUFFER"); then
@@ -903,7 +921,7 @@ _fzf_marker_placeholder() {
   strp=$(echo "$strp" | head -1)
   pos=$(echo $strp | cut -d ":" -f1)
   placeholder=$(echo $strp | cut -d ":" -f2)
-  if [[ -n "$1" ]]; then  
+  if [[ -n "$1" ]]; then
     BUFFER=$(echo $BUFFER | sed -e "s/{{//" -e "s/}}//")
     CURSOR=$(($pos + ${#placeholder} - 4))
   else
@@ -919,4 +937,3 @@ zle -N _fzf_marker_placeholder_widget
 bindkey "${FZF_MARKER_MAIN_KEY:-\C-@}" _fzf_marker_main_widget
 bindkey "${FZF_MARKER_PLACEHOLDER_KEY:-\C-v}" _fzf_marker_placeholder_widget
 ```
-