ported simple zsh prompt to bash

bash/prompt

@@ -40,7 +40,55 @@ prompt_last_rc() {
     [[ $LAST_CMD_RC -ne 0 ]] && prompt_segment red white "$LAST_CMD_RC"
 }
 
-set_prompt() {
+function contains() {
-    __git_ps1_vars
+  [[ "$2" == *$1* ]]
-    PS1="$(prompt_build)"
 }
+
+function prompt_pwd() {
+  if [[ $PWD == $HOME ]]; then
+    echo -n "~"
+  else
+    echo -n "${PWD##*/}"
+  fi
+}
+
+prompt_build_simple() {
+    __git_ps1_vars
+
+    set_color -p green
+    prompt_pwd
+
+    # add git prompt info
+    if [[ -n "$GIT_PS1_STATUS" ]]; then
+        set_color -p blue
+        echo -n " $GIT_PS1_BRANCH"
+
+        vcs_status=""
+        contains h "$GIT_PS1_STATUS" && vcs_status="$vcs_status""↰"
+        contains t "$GIT_PS1_STATUS" && vcs_status="$vcs_status""!"
+        contains u "$GIT_PS1_STATUS" && vcs_status="$vcs_status""≠"
+        contains s "$GIT_PS1_STATUS" && vcs_status="$vcs_status""±"
+        contains n "$GIT_PS1_STATUS" && vcs_status="$vcs_status""∅"
+        set_color -p red
+        [[ -n "$vcs_status" ]] && echo -n " $vcs_status"
+
+        action=""
+        contains R "$GIT_PS1_STATUS" && action="$action rebase"
+        contains i "$GIT_PS1_STATUS" && action="$action-i"
+        contains A "$GIT_PS1_STATUS" && action="$action apply"
+        contains M "$GIT_PS1_STATUS" && action="$action merge"
+        contains B "$GIT_PS1_STATUS" && action="$action bisect"
+        set_color -p yellow
+        [[ -n "$action" ]] && echo -n "$action"
+    fi
+
+    # close prompt
+    set_color -p none
+    echo -n '> '
+}
+
+set_prompt() {
+    PS1="$(prompt_build_simple)"
+}
+
+# vim: ft=sh