rearrange some module locations
auto load btrfs modules if btrfs-progs and btrbk are installedmaster
David Kebler
parent
51877424e7
commit
39d6cc755e
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@ -0,0 +1,9 @@
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#!/bin/bash
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if which btrfs &> /dev/null; then
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module_load btrfs
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if which btrbk &> /dev/null; then module_load btrbk; fi
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fi
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@ -0,0 +1,187 @@
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#!/bin/bash
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# dry run by default
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# >btrbk_run <conf name> <btrbk run options>
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# with -e exectue
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# >btrbk_run -e <conf name> <btrbk run options>
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# to only create the links
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# >btrbk_run -e <conf name> -n
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# sudo -E bash -c 'source $BASH_SHELL_BASE/module.base; module_load btrbk; btrbk_run toot'
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btrbk_scripts_dir="$(dirname $(realpath "${BASH_SOURCE:-$0}"))"
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# will try to find a conf file with out without .conf extension in a few places
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btrbk_conf () {
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local file=${1:-btrbk.conf}
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[[ -f $file ]] && echo $file && return
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[[ -f $file.conf ]] && echo $file.conf && return
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BTRBK_CONF_DIR=${BTRBK_CONF_DIR:-/snapshots/conf}
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# echo $btrbk_scripts_dir
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# echo $BTRBK_CONF_DIR
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[[ -f $BTRBK_CONF_DIR/$file ]] && echo $BTRBK_CONF_DIR/$file && return
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[[ -f $BTRBK_CONF_DIR/$file.conf ]] && echo $BTRBK_CONF_DIR/$file.conf && return
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[[ -f /etc/btrbk/$file ]] && echo /etc/btrbk/$file && return
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[[ -f /etc/btrbk/$file.conf ]] && echo /etc/btrbk/$file.conf && return
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[[ -f /etc/btrbk.conf ]] && echo /etc/btrbk.conf && return
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return 1
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}
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btrbk_clean () {
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local file=$(btrbk_conf $1)
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[[ ! $file ]] && return 1
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sudo btrbk -c $file clean $2
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}
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btrbk_src () {
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local file=$(btrbk_conf $1)
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[[ ! $file ]] && return 1
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sudo btrbk -c $file list config --format col:h:source_subvolume
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}
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btrbk_dests () {
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local file=$(btrbk_conf $1)
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[[ ! $file ]] && return 1
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local dests=$(sudo btrbk -c $file list config --format col:h:snapshot_path | tail -1)
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dests+=" $(sudo btrbk -c $file list target --format col:h:target_path)"
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echo $dests
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}
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btrbk_latest_links () {
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local dry_run="echo"
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[[ $1 == "-e" ]] && dry_run="" && shift
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local file=$(btrbk_conf $1)
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[[ ! $file ]] && echo unable to find conf file for ${1:-btrbk.conf} && return 1
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shift
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local latest=$(sudo btrbk -c $file list latest --format col:h:snapshot_subvolume | xargs -I % sh -c 'basename %' | sed '$!N; /^\(.*\)\n\1$/!P; D')
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[[ ( ! $latest ) || $latest == "-" ]] && echo "no latest snapshots so can't make .latest links" && return 3
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local dests=$(btrbk_dests $file)
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if [[ $dry_run ]]; then
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echo dry run for making latest links for following destinations, NOTE: use -e to actually make them
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echo $dests
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echo "-------------------"
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fi
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echo making .latest symlinks in each destination
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for dest in $dests; do
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for snap in $latest; do
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# [[ -e $dest/${snap%%.*}.latest ]] && $dry_run_echo sudo rm $dest/${snap%%.*}.latest
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local cmd="sudo ln -srfn $dest/$snap $dest/${snap%%.*}.latest"
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echo $cmd
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[[ ! $dry_run ]] && $cmd
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done
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done
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}
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btrbk_run () {
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local dry_run="-n"
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[[ $1 == "-e" ]] && dry_run="" && shift
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local file=$(btrbk_conf $1)
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[[ ! $file ]] && echo unable to find conf file for ${1:-btrbk.conf} && return 1
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shift
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local src=$(btrbk_src $file)
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local snaps=$(sudo btrbk -c $file list source --format col:h:snapshot_name)
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local dests=$(sudo btrbk -c $file list config --format col:h:snapshot_path | tail -1)
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local dests+=" $(btrbk -c $file list target --format col:h:target_path)"
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# todo distinguish local from remote destinations and deal with differently for latest link
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# any pre snap tasks
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# for dest in $dests; do
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# if [[ ! -d $dest ]]; then
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# if confirm directory $dest does not exist, create; then
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# sudo mkdir -p $dest
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# else
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# echo destination $dest directory MUST exist aborting brtbk run
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# return 2
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# fi
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# fi
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# done
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echo using configuration file: $file
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echo creating snapshots: $snaps
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echo from $src
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echo at these destinations $dests
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echo additional passed arguments: $@
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# do snaps and backups
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[[ $dry_run ]] && echo backup dry run || echo Taking snapshost and making backups now...
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sudo btrbk -c $file run $dry_run --progress $@
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# post snap/backup
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btrbk_latest_links $([[ $dry_run ]] || printf "%s" -e) $file
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}
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(return 0 2>/dev/null) || btrbk_run $@
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latest_clone () {
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local src=$(realpath $1)
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local dest=$(realpath $2)
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shift 2
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module_load confirm
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if [[ ! -d $dest ]]; then
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if confirm "destination directory $dest does not exist, create it"; then
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sudo mkdir -p $dest
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else
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return 1
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fi
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fi
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local snaps=$(ls $src | grep latest | sed 's/.\{1\}$//' | xargs -I % realpath $src/%)
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[[ ! $snaps ]] && echo no latest snapshots in $src && ls -la $src && return 1
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if confirm create snapshots for $snaps in $dest; then
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local destsnap
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for snap in $snaps; do
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destsnap="$dest/$(basename $snap | cut -f 1 -d '.' )"
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if [[ -d $destsnap ]]; then
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if confirm -s snapshot $destsnap already exists do you want to over write it; then
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sudo btrfs subvolume delete $destsnap
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else
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return 2
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fi
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fi
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sudo btrfs subvolume snapshot $@ $snap $destsnap
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done
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echo $dest
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ls -la $dest
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fi
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}
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# use snapshot to then snap latest to another location, have it edit the fstab file
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# #!/bin/bash
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# [[ $# -lt 2 ]] && echo "need to supply a <root instance dir> and a snapshot name" && exit
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# # echo sed 's/$name/'$name'/g' named.conf.tmpl > $subvoldir-$name.conf
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# # echo sed -i 's/$subvoldir/'$subvoldir'/g' $subvoldir-$name.conf
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# named="$2"
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# src=/mnt/linuxpart
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# dest=/mnt/linuxpart
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# echo sudo mkdir -p $dest/$named
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# echo sudo btrfs subvolume snapshot $src/$1/@root $dest/$named/@root
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# echo sudo btrfs subvolume snapshot $src/$1/@opt $dest/$named/@opt
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# echo sudo btrfs subvolume snapshot $src/$1/@home $dest/$named/@home
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# echo sudo btrfs subvolume snapshot $src/@shell $dest/$named/@shell
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# sudo mkdir -p $dest/$named
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# sudo btrfs subvolume snapshot $src/$1/@root $dest/$named/@root
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# sudo btrfs subvolume snapshot $src/$1/@opt $dest/$named/@opt
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# sudo btrfs subvolume snapshot $src/$1/@home $dest/$named/@home
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# sudo btrfs subvolume snapshot $src/@shell $dest/$named/@shell
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# echo to edit: bfs_vscode $dest/$named
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@ -0,0 +1,109 @@
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#!/bin/bash
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if ! which fusermount &> /dev/null; then
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echo unabled to load bindfs module because bindfs is not installed
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exit 1
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fi
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# echo loading bindfs
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export BFS_MOUNT_DIR=${BFS_MOUNT_DIR:-/mnt/bfs}
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if [ -v PS1 ]; then
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alias rbfsu="dir_rebind_user"
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alias rbfs="dir_rebind"
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alias bfsu="dir_bind_user"
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alias bfs="dir_bind"
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alias bfsum="dir_bind_unmount"
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alias bfse="bfs_vscode"
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sudo mkdir $BFS_MOUNT_DIR 2> /dev/null
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sudo chown $USER:$USER $BFS_MOUNT_DIR
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fi
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mounted () {
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mountpoint "$1" &> /dev/null && echo yes || return 1
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}
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dir_bind_unmount () {
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local usesudo
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local mp=$1
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[[ ! $(mounted $mp) ]] && echo no mountpoint at $mp && mp=$BFS_MOUNT_DIR/$(basename $mp)
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[[ ! $(mounted $mp) ]] && echo no mountpoint at $mp either, aborting && return 1
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[[ $EUID -ne 0 ]] && usesudo=sudo
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if $usesudo fusermount -u $mp; then
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echo unmounted $mp, removing empty mountpoint directory
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rm -rf $mp
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else
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echo error, unable to unmount $mp
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fi
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}
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dir_bind_user () {
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local usesudo; local dir;local user;local group;local mp
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if [ $# -lt 3 ]; then
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echo "minimum 3 args needed to rebind <user? <source dir> <mountpoint>"
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echo passed were $@
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return 1
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fi
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[[ $EUID -ne 0 ]] && usesudo=sudo
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[[ $(id -u $1 2> /dev/null) ]] || { echo user $1 does not exist can not continue; return 2; }
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dir=$(realpath $2)
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mp=$3
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[[ $(mounted $mp) ]] && echo something already mounted at $mp, aborting && return 1
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if ! $usesudo mkdir -p $mp; then echo unable to make mountpoint aborting; return 2; fi
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$usesudo chown $1:$1 $mp
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user=$(stat -c '%u' $dir)
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group=$(stat -c '%g' $dir)
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$usesudo bindfs --force-user=$1 --force-group=$1 --create-for-user=$user --create-for-group=$group --chown-ignore --chgrp-ignore $dir $mp
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[[ $? -gt 0 ]] && echo error in call to bindfs
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if [[ $(mounted $mp) ]]; then
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echo $dir has been mounted at $mp for user $1
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echo "to unmount use: dir_bind_unmount $mp or bfsum $mp"
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else
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echo unable to mount $dir at $mp as user $user
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fi
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}
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dir_bind () {
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mp=${2:-$BFS_MOUNT_DIR/$(basename $1)}
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dir_bind_user $USER $1 $mp
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if [ -v PS1 ]; then
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echo enter \"u\" when you ready to unmount, otherwise any other key will leave mounted
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read -n1 ans
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echo -e "\n"
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[[ $ans == "u" ]] && dir_bind_unmount $mp
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fi
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}
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dir_rebind () {
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dir_bind_user $USER $1 $1
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}
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dir_rebind_user () {
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dir_bind_user $1 $2 $2
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}
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bfs_vscode () {
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mp=${2:-$BFS_MOUNT_DIR/$(basename $1)}
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dir_bind_user $USER $1 $mp
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/opt/bin/vscode $mp
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if [ -v PS1 ]; then
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echo when you ready to unmount FIRST close your vscode window then enter \"u\"
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echo otherwise any other key will leave mounted
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read -n1 ans
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echo -e "\n"
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[[ $ans == "u" ]] && dir_bind_unmount $mp
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fi
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}
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(return 0 2>/dev/null) || dir_bind_user $@
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@ -54,3 +54,12 @@ echo copying.....
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eval $cmd
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}
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dir_size () {
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if sudo ls $1 >/dev/null ; then
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sudo du -h --apparent-size --max-depth=1 $1 | sort -rh
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else
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echo $1 not a directory
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fi
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}
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# for dir in $(/bin/find -maxdepth 1 -name "*[cC]ache*" -type d ); do; echo $dir; done
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@ -71,12 +71,24 @@ local NAMES
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local ENAMES
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local DEPTH=1
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local HIDDEN
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local raw
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local mounted
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local usesudo
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mounted="-mount"
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declare OPTION
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declare OPTARG
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declare OPTIND
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while getopts 't:p:d:e:n:f:hl' OPTION; do
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while getopts 'mrst:p:d:e:n:f:hl' OPTION; do
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case "$OPTION" in
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s)
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usesudo=sudo
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;;
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r)
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raw=true
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;;
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t)
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TYPE=$OPTARG
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# echo "TYPE $TYPE"
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@ -111,6 +123,10 @@ case "$OPTION" in
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l)
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LINKS=-L
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;;
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m)
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# include mounted directories
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mounted=""
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;;
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*)
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echo unknown option $OPTION
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;;
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@ -119,6 +135,11 @@ done
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shift $(( OPTIND - 1 ))
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if [[ $raw ]]; then
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echo executing raw find command
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$usesudo $(which find) "$@"
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fi
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local DIR
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DIR="$*"
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if [ ! "$DIR" ]; then
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@ -137,11 +158,12 @@ fi
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# echo dir $DIR
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local FIND
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FIND="command find $LINKS $DIR"
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FIND="$usesudo $(which find) $LINKS $DIR"
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FIND+=$([ ! $DEPTH == 0 ] && echo " -maxdepth $DEPTH ")
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# FIND+=" -type $([ $TYPE ] && echo "$TYPE" || echo "f")"
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TYPE=${TYPE:-f}
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FIND+=" -type $TYPE "
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debug exclude mounts: $mounted
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FIND+=" $mounted -type $TYPE "
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# include HIDDEN files and directories IS FALSE BY DEFULT
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[[ ! $HIDDEN ]] && FIND+="! -path \"*/.*/*\" ! -name \".*\" "
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@ -192,7 +214,6 @@ fi
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# done
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# fi
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# echo
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# echo find dir: $DIR >&2
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debug "find command: $FIND"
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@ -219,6 +240,7 @@ source_dir () {
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}
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prepend_file () {
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# ----------------------------------------------------------------------------------------------------------------------
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# usage prepend_file <somefile> <anotherfile>
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@ -243,3 +265,10 @@ return 0
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# [End]
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}
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# alias to add for live user
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if [ -v PS1 ]; then
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alias dfind="_find -t d -d 0 -n "
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alias sdfind="_find -s -t d -d 0 -n "
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fi
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