dotfiles/.bin/lddcopy

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#!/bin/sh
# FIXME: does not work with space in filenames or directories
# (can be fixed by | while read ... the ldd output, but.. why?)
# FIXME: directory permissions are not copied
# (can be fixed with stat -f '%p %u %g' . and walk the path with mkdir -m ...)
##
## USAGE
##
_usage() {
echo "usage: mkchroot [-xn] [-u or executable] directory"
echo "options: -u - runs for all executables found in /bin/ directories"
echo " -x - copy stuff required to connect to X"
echo " -n - copy stuff required for networking"
}
##
## HANDLE ARGUMENTS
##
while getopts xnuh arg
do
case $arg in
x) _with_x=1 ;; # creates /tmp with X connection
n) _with_network=1 ;; # copies resolv.conf
u) _update_mode=1 ;; # updates the existing directory
h) _usage; exit 0 ;;
esac
done
shift $(($OPTIND - 1))
if [ -z "$1" ] && [ -z "$_update_mode" ]
then
_usage
exit 1
fi
if [ -z "$2" ] && [ -z "$_update_mode" ]
then
_usage
exit 1
fi
if [ "$_update_mode" == "1" ]
then
_indir="$1"
else
_infile="$1"
_indir="$2"
fi
###
### FUNCTIONS
###
_ldd_extract() {
for _file in $(ldd "$1" | awk '/\// { print $7 }' | xargs)
do
_name="$(basename "$_file")"
_dir="$2/$(dirname "$_file" | cut -b2-)"
if [ ! -d "$_dir" ]
then
echo "mkdir: $_dir"
mkdir -p "$_dir"
fi
if [ ! -f "$_dir/$_name" ]
then
echo "copy: $_file -> $_dir/$_name"
cp -af "$_file" "$_dir/$_name"
else
echo "skip: $_file -> $_dir/$_name (existing)"
fi
done
}
_find_binfile() {
# remove basedir
_f=$(echo "$1" | sed "s|${1%%/*}||g")
_ofile="$(readlink -f "$_f" 2> /dev/null)"
echo $_ofile
}
###
### MAIN PROGRAM
###
if [ -z "$_update_mode" ]
then
_ldd_extract "$_infile" "$_indir"
fi
if [ "$_update_mode" == "1" ]
then
_binfiles="$(find "$_indir" -type f -path "*/bin/*")"
for _binfile in $_binfiles
do
_infile=
_infile=$(_find_binfile "$_binfile")
if [ -z "$_infile" ]
then
echo "skip: $_binfile -> $_infile (not found)"
else
_ldd_extract "$_infile" "$_indir"
fi
done
fi