.shellrc: Do not reset `PS1`

[dotfiles.git] / admin / prog / bash_prompt

diff --git a/admin/prog/bash_prompt b/admin/prog/bash_prompt
index b89d340e23b72eef93aadd2fe33bf6ea2fe38304..e4b3563b613ae78588eda1068b25cdc064a3dee8 100644 (file)
--- a/admin/prog/bash_prompt
+++ b/admin/prog/bash_prompt
@@ -2,10 +2,26 @@ cgmem_which_prompt() {
    local _cgmem_which
    _cgmem_which="`cgmem_which 2>/dev/null`"
    if [ -n "$_cgmem_which" ]; then
-      echo "[$_cgmem_which] "
+      _cgmem_which=" $_cgmem_which"
    fi
+   echo "$_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 $_DIR_LENGTH + 3`
+
 short_curdir() {
    if [ "$PWD" = / ]; then
       echo /
@@ -17,8 +33,8 @@ short_curdir() {
    fi
    local _short_curdir
    _short_curdir="${PWD##*/}" # cut all directories, get base name
-   if [ "${#_short_curdir}" -gt 18 ]; then
-      _short_curdir="${_short_curdir::15}..." # cut long string
+   if [ "${#_short_curdir}" -gt $_DIR_LENGTH_DOTS ]; then
+      _short_curdir="${_short_curdir::$_DIR_LENGTH}..." # cut long string
    fi
    echo "${_short_curdir}"
 }
@@ -41,7 +57,7 @@ prompt_git() {
             #git update-index --really-refresh -q &>/dev/null
 
             # check for unstaged changes
-            if [ -n "$(git ls-files --modified)" ]; then
+            if [ -n "$(git ls-files --modified :/)" ]; then
                 s="$s*";
             fi
 
@@ -56,7 +72,7 @@ prompt_git() {
             fi
 
             # check for untracked files
-            if [ -n "$(git ls-files --others --exclude-standard)" ]; then
+            if [ -n "$(git ls-files --others --exclude-standard :/)" ]; then
                 s="$s%";
             fi
 
@@ -101,37 +117,37 @@ prompt_git() {
 #   fi
 #fi
 
-set_prompts() {
-      OPS1=''
+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)
-            OPS1+="\[\033]0;${debian_chroot:+($debian_chroot)}\u@\h:\w\007\]"
+            PS1+="\033]0;${debian_chroot:+($debian_chroot)}\u@\h:\w\007" # Set xterm title/icon
             case "$TERM" in
                screen*)
-                  OPS1+="\[\033k${debian_chroot:+($debian_chroot)}"
-                  OPS1+="\u@\h:\w\033\\\\\]" # Set screen/tmux caption
+                  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
                ;;
             esac
          ;;
-
-         *)
-            OPS1=""
-         ;;
       esac
 
-   OPS1+="${debian_chroot:+($debian_chroot)}"
-   OPS1+="\`cgmem_which_prompt\`\u@\${HOSTNAME::5}:\`short_curdir\`"
+   # This is for .screenrc: shelltitle "\$ |$SHELL"
+   #PS1+='\033k\033\\'
+
+   PS1="\[$PS1\]"
+   PS1+='${debian_chroot:+($debian_chroot)}'
+   PS1+=${_SHORT_PROMPT}
    if test -x /usr/bin/git >/dev/null 2>&1; then
       #if [ "`type -t __git_ps1`" = function ]; then
-      #   OPS1+="\$(__git_ps1)"
+      #   PS1+='$(__git_ps1)'
       #else
-         OPS1+="\$(prompt_git)"
+         PS1+='$(prompt_git)'
       #fi
    fi
-   # This is for .screenrc: shelltitle "\$ |$SHELL"
-   #OPS1+="\[\033k\033\\\\\]"
-   OPS1+=" \$SHLVL\\$ "
-   export OPS1
+   PS1+=' $SHLVL\$ '
 }