David Kebler
parent
df297025d4
commit
c6c8f9876b
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@ -3,9 +3,17 @@ export BTRFS_BIN=$(which btrfs)
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module_load confirm
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module_load helpers
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# set this for sudo
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# NOTE: set this for sudo
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# ALL ALL = (root) NOPASSWD:/bin/btrfs
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is_subvol () {
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if [[ $1 == "-r" ]]; then
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if ! btrfs subvolume show "$2" 2> /dev/null | grep readonly &> /dev/null; then return 1; fi
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else
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btrfs subvolume show "$1" &> /dev/null
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fi
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}
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make_subvol() {
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local usesudo
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local uid
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@ -124,30 +132,63 @@ folder_snapshot() {
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snapshot_send() {
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if [[ $1 == "-e" ]];then
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dr=""
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shift 1
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else
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echo "snapshot_send <-e> <souce snapshot path> <destination folder on different partition> <destination extension>"
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echo preface with -e to execute
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dr="echo"
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fi
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temp="$(dirname $1)/tmp_send"
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name=$(basename $1)
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name=$(echo $name | cut -f 1 -d '.')
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ext="$(echo $name | cut -s -f 2 -d '.')"
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# Show usage and exit with status
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help () {
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echo 'usage: snapshot_send -h,-r <source_path, full or relative> <destination_parent_dir> <optional, alternate directory name>'
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}
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if [[ $1 == "-h" ]]; then help; return; fi
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local dr="echo "
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if [[ $1 == "-r" ]]; then
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unset dr; shift;
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else
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echo this will be a dry run, use -r to actually run the command
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fi
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if [[ $# -lt 2 ]]; then help; return 1; fi
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# Check for directories
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if ! is_subvol "$1"; then
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echo source $1 not a subvolume
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help
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return 2
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fi
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if [[ ! -d "$2" ]]; then
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echo destination $2 not a valid directory
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help; return 3
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fi
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# Get paths
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local src=$(abs_path "${1%/}")
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local psrc="$(dirname $src)"
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local dest=$(abs_path "${2%/}")
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local snap=$(basename $src)
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local ext="$(echo $snap | cut -s -f 2 -d '.')"
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local name=$(echo $snap | cut -f 1 -d '.')
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[[ $ext ]] && ext=".$ext"
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[[ $3 ]] && ext=".$3"
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sudo mkdir $temp
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$dr sudo $BTRFS_BIN sub snap -r $1 $temp/$name$ext
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if [[ $dr ]]; then
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$dr "sudo $BTRFS_BIN send $temp/$name$ext | btrfs receive $2"
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else
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sudo $BTRFS_BIN send $temp/$name$ext | btrfs receive $2
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local tsnap
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if ! is_subvol -r $src; then
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tsnap=$psrc/$name.tmp
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$dr sudo $BTRFS_BIN sub snap -r $src $tsnap
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fi
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$dr sudo $BTRFS_BIN sub del $temp/$name$ext
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ls -la $2
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sudo rm -r $temp
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if [[ $dr ]]; then
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echo "sudo $BTRFS_BIN send $([[ $tsnap ]] && echo $tsnap || echo $src) | btrfs receive $dest/$name$ext"
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echo "[[ "$tsnap" ]] && sudo $BTRFS_BIN sub del $tsnap"
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else
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sudo $BTRFS_BIN send $([[ $tsnap ]] && echo $tsnap || echo $src) | btrfs receive $dest
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mv $dest/$snap $dest/$name$ext
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[[ "$tsnap" ]] && sudo $BTRFS_BIN sub del $tsnap
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echo transfer is complete
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ls -la $dest
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ls -la $dest/$name$ext
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fi
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}
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mount_subvolume () {
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@ -195,3 +195,6 @@ return 0
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# alias chext=change-ext
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clean_locale () {
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/bin/find /usr/share/locale/* -maxdepth 0 -type d -a ! '(' -name 'en_US' ')' -exec sudo rm -r {} +
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}
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@ -2,44 +2,93 @@
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# moves a directory and then links it back
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# good for moving directories from one partition to another but without changing any settings
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SCRIPT_NAME='mvln'
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USAGE_STRING='usage: '$SCRIPT_NAME' <source_path> <destination_dir_path>'
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module_load copy
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module_load path
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module_load confirm
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mvlnbk () {
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# Show usage and exit with status
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help () {
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echo 'usage: mvlnbk -h,-r <source_path, full or relative> <destination_parent_dir> <optional, alternate directory name> -- <copy options>'
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}
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if [[ $1 == "-h" ]]; then help; return; fi
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local co;
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local dr="echo "
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if [[ $1 == "-r" ]]; then
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co="-r"; unset dr; shift;
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else
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echo this will be a dry run, use -r to actually run the command
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fi
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if [[ $# -lt 2 ]]; then help; return 1; fi
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# Check for directories
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if [[ ! -d "$1" ]]; then
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echo source $1 not a valid directory
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help
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return 2
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fi
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if [[ ! -d "$2" ]]; then
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echo destination $2 not a valid directory
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help; return 3
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fi
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# Get paths
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local src=$(abs_path "${1%/}")
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local psrc="$(dirname $src)"
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local dest=$(abs_path "${2%/}")
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local dir=$(basename $src)
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local ddir=${3:-$dir}
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local use_sudo
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if [[ $(stat -c %u "$psrc") != "$UID" ]]; then
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echo $psrc not owned by current user $USER
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echo elevating to sudo
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use_sudo="sudo "
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co+=" -s"
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fi
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if confirm do you want to move $src to $dest/$ddir and link back; then
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if $dr copy $co -m -i $src $dest/$ddir; then
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echo directory copied successfully
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echo moving source to temporary directory $src-tmp
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if $dr $use_sudo mv $src $src-tmp; then
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echo success, creating link back now
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if $dr $use_sudo ln -s "$dest/$ddir" "$src"; then
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if [[ ! $dr ]]; then
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echo success
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echo destination $dest/$ddir
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ls -la $dest/$ddir
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echo from link at $src
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ls -la $src
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ls -Lla $src
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if confirm -s Was the move and link back succesfull; then
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echo deleting the temporary directory $src-tmp
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$dr $use_sudo rm -rf $src-tmp
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else
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echo restoring $src from $src-tmp
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$dr $use_sudo rm $src
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$dr $use_sudo mv $src-tmp $src
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fi
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fi
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fi
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else
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echo failed to move source to temporary directory so not creating link back
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fi
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else
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echo rsync copy failed, aborting link back
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fi
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else
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echo aborting move and link back
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fi
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# Show usage and exit with status
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show_usage_and_exit () {
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echo $USAGE_STRING
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exit 1
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}
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# ERROR file does not exist
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no_file () {
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echo $SCRIPT_NAME': '$1': No such file or directory'
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exit 2
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}
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# Check syntax
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if [ $# -ne 2 ]; then
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show_usage_and_exit
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fi
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# Check file existence
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if [ ! -e "$1" ]; then
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no_file $1
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fi
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# Get paths
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source_path=$1
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destination_path=$2
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# Check that destination ends with a slash
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[[ $destination_path != */ ]] && destination_path="$destination_path"/
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# Move source
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[[ -d "$destination_path" ]] || mkdir -p "$destination_path"
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mv "$source_path" "$destination_path"
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# Get original path
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original_path=$destination_path$(basename $source_path)
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# Create symlink in source dir
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ln -s "$original_path" "${source_path%/}"
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# # if script was executed then call the function
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(return 0 2>/dev/null) || mvlnbk $@
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