104 lines
3.2 KiB
Plaintext
104 lines
3.2 KiB
Plaintext
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#!/bin/bash
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# based on code from dracut convertfs.sh
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ROOT=
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# the package is installed with AutoReq off, so no guarantee that
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# coreutils actually works
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if ! (cp --help && mountpoint --help && mountpoint --help) > /dev/null; then
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echo "tools not functional, exit"
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exit 1
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fi
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# clean up after ourselves no matter how we die.
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cleanup() {
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echo "Something failed, cleaning up"
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for dir in bin sbin lib lib64; do
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rm -rf -- "$ROOT/usr/${dir}.usrmerge"
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done
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}
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trap 'ret=$?; [[ $ret -ne 0 ]] && cleanup;exit $ret;' EXIT
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trap 'exit 1;' SIGINT
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mountpoint -q "$ROOT/usr" || CP_HARDLINK="-l"
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set -e
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# merge / and /usr in new dir in /usr
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for dir in bin sbin lib lib64; do
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rm -rf -- "$ROOT/usr/${dir}.usrmerge"
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[[ -L "$ROOT/$dir" ]] && continue
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[[ -d "$ROOT/$dir" ]] || continue
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echo "Make a copy of \`$ROOT/$dir'."
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[[ -d "$ROOT/$dir" ]] \
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&& cp -ax -l "$ROOT/$dir" "$ROOT/usr/${dir}.usrmerge"
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echo "Merge the copy with \`$ROOT/usr/$dir'."
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[[ -d "$ROOT/usr/${dir}.usrmerge" ]] \
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|| mkdir -p "$ROOT/usr/${dir}.usrmerge"
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cp -axT $CP_HARDLINK --backup --suffix=.usrmerge~ "$ROOT/usr/$dir" "$ROOT/usr/${dir}.usrmerge"
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echo "Clean up duplicates in \`$ROOT/usr/$dir'."
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# delete all symlinks that have been backed up. /usr versions
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# override / ones
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find "$ROOT/usr/${dir}.usrmerge" -type l -name '*.usrmerge~' -delete || :
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# in rare cases the symlinks may point from /usr to /, so remove
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# the link in that case
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while read file; do
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o=${file%%.usrmerge~}
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[ -L "$o" ] && mv -f "$file" "$o"
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done < <(find "$ROOT/usr/${dir}.usrmerge" \
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-name '*.usrmerge~' -type f)
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done
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# switch over merged dirs in /usr
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for dir in bin sbin lib lib64; do
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if [ -d "$ROOT/usr/${dir}.usrmerge" ]; then
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echo "Switch to new \`$ROOT/usr/$dir'."
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/usr/libexec/xmv "$ROOT/usr/${dir}.usrmerge" "$ROOT/usr/$dir"
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fi
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done
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# replace dirs in / with links to /usr
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for dir in bin sbin lib lib64; do
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if [ ! -L "$ROOT/$dir" -a -d "$ROOT/$dir" ]; then
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echo "Create \`$ROOT/$dir' symlink."
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rm -rf "$ROOT/${dir}.usrmerge" || :
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ln -s usr/$dir "$ROOT/${dir}.usrmerge"
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/usr/libexec/xmv "$ROOT/$dir" "$ROOT/${dir}.usrmerge"
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fi
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done
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echo "Clean up backup files."
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# everything seems to work; cleanup
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for dir in bin sbin lib lib64; do
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for pfx in usr/ /; do
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# if we get killed in the middle of "rm -rf", ensure not to leave
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# an incomplete directory, which is moved back by cleanup()
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d="$ROOT/${pfx}${dir}.usrmerge"
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if [ -d "$d" ]; then
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echo "$d ..."
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mv "$d" "$d~"
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rm -rf "$d~"
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fi
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done
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done
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# XXX: confirm this is needed
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for dir in lib lib64; do
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[[ -d "$ROOT/$dir" ]] || continue
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for lib in "$ROOT"/usr/${dir}/lib*.so*.usrmerge~; do
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[[ -f $lib ]] || continue
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mv -v $lib ${lib/.so/_so}
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done
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done
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set +e
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echo "Run ldconfig."
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ldconfig -r "$ROOT"
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#. $ROOT/etc/selinux/config
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#if [ -n "$(command -v setfiles)" ] && [ "$SELINUX" != "disabled" ] && [ -f /etc/selinux/${SELINUXTYPE}/contexts/files/file_contexts ]; then
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# echo "Fixing SELinux labels"
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# setfiles -r $ROOT -p /etc/selinux/${SELINUXTYPE}/contexts/files/file_contexts $ROOT/sbin $ROOT/bin $ROOT/lib $ROOT/lib64 $ROOT/usr/lib $ROOT/usr/lib64 $ROOT/etc/ld.so.cache $ROOT/var/cache/ldconfig || :
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#fi
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