src/xhere

   1 #!/bin/bash
   2 # Have to use bash; can't get ash to "exec -l"
   3 # Separate script from chere to avoid need for argument parsing
   4 #
   5 # first arg is shell
   6 # second arg is the path
   7 #
   8 # Dave Kilroy
   9 # Nov 2011
  10 #
  11 VERSION=1.2
  12 # Add support for dash
  13 # Add support for mksh
  14 #VERSION=0.7
  15 # Run normally if /bin is not in path
  16 #   Thanks to Dave Griffin
  17 # Don't complain if second arg not present. Assume we are in the correct
  18 #   directory. This allows compatibility with previous versions of chere.
  19 #VERSION=0.6
  20 # Fix a couple typos
  21 # cd to second arg to handle invocation from RH explorer pane
  22 # If the second arg is not a valid directory, guess a network path since
  23 #  we will always lose the \\ prefix
  24 #VERSION=0.4
  25 # First version, tied into chere version
  26
  27 # Would have the second arg as a directory to cd to, but the directory
  28 # can't be quoted correctly for netork paths
  29
  30 # Fully specify paths to binaries, as /bin is not necessarily in the path
  31 CYGPATH=/bin/cygpath
  32 SED=/bin/sed
  33 ID=/bin/id
  34
  35 if [ -z $1 ]; then
  36  echo An argument is required, specifying the shell to invoke as a login shell
  37  exit
  38 elif [ $1 == -h ]; then
  39  echo This script is not intended to be invoked from the command line. Try chere -h
  40  exit
  41 fi
  42
  43 # Instead, just set a variable indicating to the login shells not to cd $HOME
  44 export CHERE_INVOKING=true
  45
  46 # Goto the desired directory.
  47 # This is necessary when the context menu is opened in the RH pane
  48 if [ ! -z "$2" ]; then
  49  CHERE_DIR=`$CYGPATH "$2"`
  50  NETWORK_PATH=/$CHERE_DIR
  51  if [ -d "$CHERE_DIR" ]; then
  52   cd "$CHERE_DIR"
  53
  54  # If the full path doesn't exist, this is prob a network path
  55  elif [ -d "$NETWORK_PATH" ]; then
  56   cd "$NETWORK_PATH"
  57  fi
  58 fi
  59 # If that doesn't exist then the current should be the desired directory
  60
  61 if [ $1 = /etc/passwd ]; then
  62  user=`$ID -un`
  63  scmd=`$SED -n "s?$user:.*:\(.*\)?\1?gp" /etc/passwd`;
  64  set -- $scmd
  65 fi
  66
  67 # Replace this bash with a login shell
  68 # but only if we recognise the shell
  69 case $1 in
  70  /bin/sh* | /bin/bash* | /bin/pdksh* | /bin/posh* | /bin/tcsh* | /bin/zsh*  | /bin/dash* | /bin/mksh* | /bin/fish* )
  71     echo Starting $1;
  72     exec -l $1;;
  73  * )
  74     echo Do not recognise $1;;
  75 esac