#!/usr/bin/bash
_scl_source_help="Usage: source scl_source <action> [<collection> ...]
Don't use this script outside of SCL scriptlets!
Options:
-h, --help display this help and exit"
if [ $# -eq 0 -o "$1" = "-h" -o "$1" = "--help" ]; then
echo "$_scl_source_help"
else # main operation mode
if [ -z "$_recursion" ]; then
_recursion="false"
fi
if [ -z "$_scl_scriptlet_name" ]; then
# The only allowed action in the case of recursion is the same
# as was the original
_scl_scriptlet_name=$1
fi
shift 1
if [ -z "$_scl_dir" ]; then
# No need to re-define the directory twice
_scl_dir=/etc/scl/conf
if [ ! -e $_scl_dir ]; then
_scl_dir=/etc/scl/prefixes
fi
fi
for arg in "$@"; do
_scl_prefix_file=$_scl_dir/$arg
_scl_prefix=`cat "$_scl_prefix_file" 2> /dev/null`
if [ $? -ne 0 ]; then
echo >&2 "Can't read $_scl_prefix_file, $arg is probably not installed."
return 1
fi
# First check if the collection is already in the list
# of collections to be enabled
for scl in "${_scls[@]}"; do
if [ "$arg" == "$scl" ]; then
continue 2
fi
done
# Now check if the collection isn't already enabled
if ! /usr/bin/scl_enabled "$arg" > /dev/null 2> /dev/null; then
_scls+=( "$arg" )
_scl_prefixes+=( "$_scl_prefix" )
fi;
done
if [ $_recursion == "false" ]; then
_i=0
_recursion="true"
while [ $_i -lt ${#_scls[@]} ]; do
_scl_scriptlet_path="${_scl_prefixes[$_i]}/${_scls[$_i]}/${_scl_scriptlet_name}"
source "$_scl_scriptlet_path"
if [ $? -ne 0 ]; then
echo >&2 "Can't source $_scl_scriptlet_name, skipping."
else
export X_SCLS="${_scls[$_i]} $X_SCLS"
fi;
_i=$(( _i + 1 ))
done
_scls=()
_scl_prefixes=()
_scl_scriptlet_name=""
_recursion="false"
fi
fi # main operation mode
Mini Shell