.shellrc: Use `PS1+=` to avoid overriding `PS1`

[dotfiles.git] / admin / prog / bash_prompt

diff --git a/admin/prog/bash_prompt b/admin/prog/bash_prompt
index 0436df4a951bac7043a6437255c0fcd4ba5036d8..1cb2c4201fbfa179cf250aa1dc09310de249e53b 100644 (file)
--- a/admin/prog/bash_prompt
+++ b/admin/prog/bash_prompt
@@ -7,6 +7,17 @@ cgmem_which_prompt() {
    echo "$_cgmem_which"
 }
 
+last_cmd_status() {
+    local _last_status=$?
+    if [ $_last_status -eq 0 ]; then
+        echo '+'
+    elif [ $_last_status -ge 1 ]; then
+        echo '-'
+    else
+        echo '?'
+    fi
+}
+
 # Cut directories to 20% of the terminal width; add space for 3 dots
 _DIR_LENGTH=`awk "END { print int(0.2 * ${COLUMNS:-80}) }" </dev/null`
 _DIR_LENGTH_DOTS=`expr $_DIR_LENGTH + 3`
@@ -106,17 +117,17 @@ prompt_git() {
 #   fi
 #fi
 
-set_prompts() {
+set_prompt() {
       PS1=''
       local _SHORT_PROMPT='[\A`cgmem_which_prompt`] \u@${HOSTNAME::5}:`short_curdir`'
       # display the user, host and current working directory
       # in the terminal title
       case "$TERM" in
          *rxvt*|screen*|*term*|vt100)
-            PS1="\033]0;${debian_chroot:+($debian_chroot)}\u@\h:\w\007" # Set xterm title/icon
+            PS1+="\033]0;${debian_chroot:+($debian_chroot)}\u@\h:\w\007" # Set xterm title/icon
             case "$TERM" in
                screen*)
-                  PS1="\033P${PS1}\033\\\\" # Set xterm title/icon under screen/tmux
+                  PS1+="\033P${PS1}\033\\\\" # Set xterm title/icon under screen/tmux
                   if [ -z "$MC_SID" ]; then
                      PS1+="\033k${_SHORT_PROMPT}\033\\\\" # Set screen/tmux caption
                   fi