d87a652582
- Better shell support for cd'ing into directories - Fix some csh weirdness with nested aliases.
24 lines
1.0 KiB
Tcsh
24 lines
1.0 KiB
Tcsh
########################################################################
|
|
# Prepends directories to path, if they exist.
|
|
# pathadd /path/to/dir # add to PATH
|
|
# or pathadd OTHERPATH /path/to/dir # add to OTHERPATH
|
|
########################################################################
|
|
# If no variable name is supplied, just append to PATH
|
|
# otherwise append to that variable.
|
|
set _pa_varname = PATH;
|
|
set _pa_new_path = $_pa_args[1];
|
|
[ $#_pa_args -gt 1 ] && set _pa_varname = $_pa_args[1] && set _pa_new_path = $_pa_args[2];
|
|
|
|
# Check whether the variable is set yet.
|
|
set _pa_old_value = ""
|
|
eval set _pa_set = '$?'$_pa_varname
|
|
[ $_pa_set -eq 1 ] && eval set _pa_old_value='$'$_pa_varname;
|
|
|
|
# Do the actual prepending here, if it is a dir and not already in the path
|
|
if ( -d $_pa_new_path && \:$_pa_old_value\: !~ *\:$_pa_new_path\:* ) then
|
|
[ -n "$_pa_old_value" ] && setenv $_pa_varname $_pa_new_path\:$_pa_old_value
|
|
[ -z "$_pa_old_value" ] && setenv $_pa_varname $_pa_new_path
|
|
endif
|
|
|
|
unset _pa_args _pa_new_path _pa_old_value _pa_set _pa_varname
|