setgit

#!/usr/bin/bash
Tmp=/tmp/$$
Tmp1=/tmp/$$_$$
trap 'exit 0' INT HUP QUIT TERM ALRM USR1
trap 'rm -f "$Tmp" "$Tmp1"' EXIT
rm -f "$Tmp"  >/dev/null 2>&1
rm -f "$Tmp1"  >/dev/null 2>&1
#    Specifying the location of the ".git" directory using this option (or GIT_DIR environment variable)
#    turns off the repository discovery that tries to find a directory with ".git" subdirectory (which is how
#    the repository and the top-level of the working tree are discovered), and tells Git that you are at the
#    top level of the working tree. If you are not at the top-level directory of the working tree, you should
#    tell Git where the top-level of the working tree is, with the --work-tree=<path> option (or
#    GIT_WORK_TREE environment variable)
touch $Tmp

if [[ -z "$1" ]]; then
  # echo "Argument is blank"
  echo "unset GIT_DIR"        > $Tmp
  echo "unset GIT_WORK_TREE" >> $Tmp
  echo "unset GW"            >> $Tmp
  echo "unset GD"            >> $Tmp
else
  # echo "Argument is not blank: $1"
  echo "export GIT_DIR=\"/etc/scm/$1/.git\""  >> $Tmp
  echo "export GD=\"/etc/scm/$1/.git\""       >> $Tmp
  echo "export GIT_WORK_TREE=\"/etc/scm/$1\"" >> $Tmp
  echo "export GW=\"/etc/scm/$1\""            >> $Tmp
  echo "git status"                           >> $Tmp
fi

cat $Tmp