X-Git-Url: https://git.distorted.org.uk/~mdw/profile/blobdiff_plain/4cb8b8dada50dea956900ab8a91829449b2fe6f9..11fc748d4ce1939022c23633444c3ccf3ee59610:/dot/shell-rc

diff --git a/dot/shell-rc b/dot/shell-rc
index 8742ea8..940f91b 100644
--- a/dot/shell-rc
+++ b/dot/shell-rc
@@ -25,8 +25,8 @@ __mdw_set_prompt_pieces () {
 
   ## Fancy highlighting in some terminals.
   local bold unbold nl gitcolour rccolour uncolour
-  local host dir
-  bold="" unbold="" nl="" gitcolour="" rccolour="" uncolour=""
+  local host dir more
+  bold="" unbold="" nl="" gitcolour="" rccolour="" uncolour="" more=""
   __mdw_set_prompt_hacks
 
   ## Choose the right delimiters.  Highlight root prompts specially;
@@ -61,8 +61,10 @@ __mdw_set_prompt_pieces () {
     *) sec_l="" sec_r=""
   esac
 
-  ## If this is an schroot environment then point this out.
+  ## If this is an schroot environment or some other interesting augmented
+  ## environment then point this out.
   hqual="$hqual${SCHROOT_CHROOT_NAME+/$SCHROOT_CHROOT_NAME}"
+  hqual="$hqual${MDW_BUILDENV+/$MDW_BUILDENV}"
 
   ## Put together the main pieces.
   __mdw_prompt_left="$nl$bold$left$sec_l$u$host$hqual$sec_r$dir"
@@ -71,23 +73,32 @@ __mdw_set_prompt_pieces () {
   __mdw_prompt_rc_left="$unbold$rccolour"
   __mdw_prompt_rc_right="$uncolour$bold"
   __mdw_prompt_right="$right$unbold"
+  __mdw_prompt_more=" $more$bold>$unbold "
 }
 
 __mdw_set_prompt () {
-  __mdw_last_rc=$?
-  local git rc
-  if type __git_ps1 >/dev/null 2>&1; then
-    git="$__mdw_prompt_git_left$(__git_ps1)$__mdw_prompt_git_right"
-  else
-    git=""
-  fi
-  case $__mdw_last_rc in
-    0) rc="" ;;
-    *) rc="$__mdw_prompt_rc_left rc=$__mdw_last_rc$__mdw_prompt_rc_right" ;;
+  case "${TERM-dumb}:${INSIDE_EMACS+$INSIDE_EMACS}" in
+    dumb:)
+      case $(id -u) in 0) PS1='# ' ;; *) PS1='$ ' ;; esac
+      PS2='> '
+      ;;
+    *)
+      __mdw_last_rc=$?
+      local git rc
+      if type __git_ps1 >/dev/null 2>&1; then
+	git="$__mdw_prompt_git_left$(__git_ps1)$__mdw_prompt_git_right"
+      else
+	git=""
+      fi
+      case $__mdw_last_rc in
+	0) rc="" ;;
+	*) rc="$__mdw_prompt_rc_left rc=$__mdw_last_rc$__mdw_prompt_rc_right" ;;
+      esac
+      PS1="$__mdw_prompt_left$git$rc$__mdw_prompt_right"
+      PS2="$PS1$__mdw_prompt_more"
+      unset __mdw_last_rc
+      ;;
   esac
-  PS1="$__mdw_prompt_left$git$rc$__mdw_prompt_right"
-  PS2="$PS1 $bold>$unbold "
-  unset __mdw_last_rc
 }
 
 __mdw_precmd () {
@@ -121,6 +132,8 @@ alias pushtmp='pushd ${TMPDIR-/tmp}'
 alias e="$EDITOR"
 alias svn="svnwrap svn"
 alias @="ssh"
+alias make="nice make"
+alias gdb="gdb -q"
 
 ###--------------------------------------------------------------------------
 ### Colour output.
@@ -151,6 +164,21 @@ alias egrep="greplike egrep"
 alias fgrep="greplike fgrep"
 alias zgrep="greplike zgrep"
 
+## Arrange for `diff' output to be in colour.
+export DIFF_COLORS="hd=1:ln=36:ad=32:de=31"
+difflike () {
+  local diff=$1; shift
+  if [ -t 1 ]; then
+    command $diff \
+	    ${DIFF_COLORS+--color=always} \
+	    ${DIFF_COLORS+--palette="$DIFF_COLORS"} \
+	    "$@" | mdw-pager
+  else
+    command $diff "$@" | cat
+  fi
+}
+alias diff="difflike diff"
+
 ###--------------------------------------------------------------------------
 ### Other hacks.
 
@@ -329,7 +357,10 @@ path_add "$HOME/bin"
 
 ## Set the temporary directory again.  (A setuid or setgid program may have
 ## unhelpfully forgotten this for us.)
-case ${TMPDIR+t} in t) ;; *) eval $(tmpdir -b); esac
+case ${TMPDIR+t} in
+  t) ;;
+  *) if __mdw_programp tmpdir; then eval $(tmpdir -b); fi ;;
+esac
 
 ## For `root' use -- some simple molly-guards.
 case $(id -u) in