simple autojump

See description of autojump on github
It is only ~10 lines of code, there is no database. It remembers only
directories from current session. It select not most frequent dir, but
matching last visited. Matches are done from beginning of of dir.

cd /tmp
cd "~/long dir mp3"
cd "~/long dir mp4"
cd /tmp
cd /var/tmp
cd /etc
j t  	# same as  cd /var/tmp
j .*3  	# same as  cd "~/long dir mp3"

1 files changed, 23 insertions, 0 deletions

diff --git a/git-prompt.sh b/git-prompt.sh
index 5a7591c..ccb16bd 100755
--- a/git-prompt.sh
+++ b/git-prompt.sh
@@ -54,6 +54,8 @@
         max_file_list_length=${max_file_list_length:-100}
         upcase_hostname=${upcase_hostname:-on}
 
+        aj_max=20
+
 
 #####################################################################  post config
 
@@ -587,6 +589,22 @@ enable_set_shell_label() {
 	     set_shell_label $BASH_COMMAND' DEBUG  >& /dev/null
  }
 
+# autojump (see http://wiki.github.com/joelthelion/autojump)
+j (){
+        : ${1? usage: j dir-beginning}
+        # go in ring buffer starting from current index.  cd to first matching dir
+        for (( i=(aj_idx+1)%aj_max;   i != aj_idx%aj_max;  i=++i%aj_max )) ; do 
+                #echo == ${aj_dir_list[$i]} == $i 
+                if [[ ${aj_dir_list[$i]} =~ ^.*/$1[^/]*$ ]] ; then
+                        cd "${aj_dir_list[$i]}"
+                        return
+                fi
+        done
+        echo '?'
+}
+
+alias jumpstart='echo ${aj_dir_list[@]}'
+
 ###################################################################### PROMPT_COMMAND
 
 prompt_command_function() {
@@ -603,6 +621,11 @@ prompt_command_function() {
 
         parse_vcs_status
 
+        # autojump
+        if [[ ${aj_dir_list[aj_idx%aj_max]} != $PWD ]] ; then 
+              aj_dir_list[++aj_idx%aj_max]="$PWD"
+        fi
+
         # if cwd_cmd have back-slash, then assign it value to cwd
         # else eval cwd_cmd,  cwd should have path after exection
         eval "${cwd_cmd/\\/cwd=\\\\}"