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=1.4
  12 # HISTORY PRIOR TO GIT
  13 #VERSION=1.2
  14 # Add support for dash
  15 # Add support for mksh
  16 #VERSION=0.7
  17 # Run normally if /bin is not in path
  18 #   Thanks to Dave Griffin
  19 # Don't complain if second arg not present. Assume we are in the correct
  20 #   directory. This allows compatibility with previous versions of chere.
  21 #VERSION=0.6
  22 # Fix a couple typos
  23 # cd to second arg to handle invocation from RH explorer pane
  24 # If the second arg is not a valid directory, guess a network path since
  25 #  we will always lose the \\ prefix
  26 #VERSION=0.4
  27 # First version, tied into chere version
  28
  29 # Would have the second arg as a directory to cd to, but the directory
  30 # can't be quoted correctly for netork paths
  31
  32 # Fully specify paths to binaries, as /bin is not necessarily in the path
  33 CYGPATH=/bin/cygpath
  34 SED=/bin/sed
  35 ID=/bin/id
  36 GETENT=/bin/getent
  37
  38 if [ -z $1 ]; then
  39  echo An argument is required, specifying the shell to invoke as a login shell
  40  exit
  41 elif [ $1 == -h ]; then
  42  echo This script is not intended to be invoked from the command line. Try chere -h
  43  exit
  44 fi
  45
  46 # Instead, just set a variable indicating to the login shells not to cd $HOME
  47 export CHERE_INVOKING=true
  48
  49 # Goto the desired directory.
  50 # This is necessary when the context menu is opened in the RH pane
  51 if [ ! -z "$2" ]; then
  52  CHERE_DIR=`$CYGPATH "$2"`
  53  NETWORK_PATH=/$CHERE_DIR
  54  if [ -d "$CHERE_DIR" ]; then
  55   cd "$CHERE_DIR"
  56
  57  # If the full path doesn't exist, this is prob a network path
  58  elif [ -d "$NETWORK_PATH" ]; then
  59   cd "$NETWORK_PATH"
  60  fi
  61 fi
  62 # If that doesn't exist then the current should be the desired directory
  63
  64 if [ $1 = /etc/passwd ]; then
  65  user=`$ID -un`
  66  scmd=`$GETENT passwd $user | $SED -n "s?.*:\(.*\)?\1?gp"`
  67  set -- $scmd
  68 fi
  69
  70 # Replace this bash with a login shell
  71 # but only if we recognise the shell
  72 case $1 in
  73  /bin/sh* | /bin/bash* | /bin/pdksh* | /bin/posh* | /bin/tcsh* | /bin/zsh*  | /bin/dash* | /bin/mksh* | /bin/fish* )
  74     echo Starting $1;
  75     exec -l $1;;
  76  * )
  77     echo Do not recognise $1;;
  78 esac