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|
#!/bin/bash
VERSION=0.1
find_libs=$(dirname "$(readlink -f "$0")")/find-libs
usage() {
cat <<HELP
Copies binaries and their dependencies for chroot usage.
Copyright (C) 2012 Peter Wu
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Peter Wu <lekensteyn@gmail.com>
Usage: $0 [OPTION] file...
Options:
-n, --dry-run Do not copy files, just print the action that would be
performed.
-d DIR, --destdir DIR Destination directory for the files.
-c, --continue Continue even if a given file cannot be located.
-h, --help Print this help text, then exit.
--version Prints the version of this program, then exit.
Environment:
DESTDIR If --destdir is not given, this environment variable is sought. If
this variable does not exist either, a temporary directory is
created which is printed on termination.
HELP
}
opts=`getopt --name "$0" -o nd:ch \
--longoptions dry-run,destdir:,continue,help,version \
-- "$@"`
if [ $? != 0 -o -z "$opts" ]; then
usage
exit 1
fi
eval set -- "$opts"
DRY_RUN=false
CONT_ON_ERR=false
while :; do
case "$1" in
-n|--dry-run) DRY_RUN=true ;;
-d|--destdir) DESTDIR="$2" ; shift ;;
-c|--continue) CONT_ON_ERR=true ;;
-h|--help) usage; exit 0 ;;
--version) echo "$VERSION" ; exit 0 ;;
--) shift; break ;;
*) echo "Internal error!"; exit 1 ;;
esac
shift
done
if [ $# -eq 0 ]; then
echo "Need at least one binary or library to isolate."
echo "Try '$0 --help' for more information."
exit 1
fi
resolve_interpreter() {
local file="$1"
local interp
interp=$(head -c 256 "$file" | awk -F '[#! \t]+' 'NR==1 && /^#!/{print $2;exit}')
[ -n "$interp" ] || return
echo "$interp"
# /usr/bin/env python2 -> python2
case "$interp" in
env|/usr/bin/env)
awk -F '[#! \t]+' '{
for (i=3;i<NF;i++)
if ($i !~ /^-/) {
print $i;exit
}
}'
;;
esac
}
errors=0
subjects=()
for subject; do
realsubject="$subject"
#realsubject="$(readlink -e "$subject")"
[ -e "$realsubject" ] || realsubject="$(which "$subject" 2>/dev/null)" || true
if [ -n "$realsubject" ]; then
subjects[${#subjects[@]}]="$realsubject"
for extra in $(resolve_interpreter "$realsubject"); do
if path="$(which "$extra" 2>/dev/null)"; then
subjects[${#subjects[@]}]="$path"
else
echo "Missing program: $extra"
((errors++))
fi
done
else
echo "Missing file: $subject"
((errors++))
fi
done
if [ $errors -ne 0 ]; then
echo "$errors files could not be found"
if ! $CONT_ON_ERR; then
echo "Aborting. To ignore this, pass the '--continue' option."
exit 255
fi
fi
info="$("$find_libs" "${subjects[@]}")"
echo "$info"
count=${info%% *}
filelist="${info#* }"
try_install() {
local file="$1"
# target without leading ../../etc
local target="$DESTDIR/$(sed 's,\(\.\./\)*,,' <<<"$file")"
if [ ! -e "$target" ]; then
if $DRY_RUN; then
echo "Installing $file"
else
install -v -D "$file" "$target"
fi
fi
}
if [ $count -gt 0 ]; then
tmpdir=
if [ -z "$DESTDIR" ]; then
tmpdir="$(mktemp -d)"
DESTDIR="$tmpdir"
fi
umask 002
while read file; do
try_install "$file"
done < "$filelist"
[ -z "$tmpdir" ] || rmdir --ignore-fail-on-non-empty "$tmpdir"
else
echo "No files to copy"
fi
for subject in "${subjects[@]}"; do
try_install "$subject"
done
rm "$filelist"
|
