remove encryption option, make it work and push stuff to github
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Von Random
parent
c0b5413e3b
commit
2e0cd8f7af
2 changed files with 76 additions and 37 deletions
14
backup.cfg
14
backup.cfg
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@ -1,7 +1,9 @@
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protocol=ssh # ftp, sftp, ftps, ssh or local
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#port_remote=22
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snap_file=/var/backup/snapshot.list
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exclude_list=/usr/local/etc/backup/excludes.list
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incremental_backup=true #if var exists, content does not matter
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gnupg_key=/usr/local/etc/backup/gpg_key
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compress_format=xz
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source_dir=/home/user/source
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remote_host=hostname.tld
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backup_dir=relative_or_full_path
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#snap_file=/var/backup/snapshot.list
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#exclude_list=/usr/local/etc/backup/excludes.list
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compress_format=xz # gz, bz2, xz or empty for non-compressed
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remote_user=username
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remote_pass=PassWd
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99
backup.zsh
Normal file → Executable file
99
backup.zsh
Normal file → Executable file
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@ -1,9 +1,6 @@
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#!/usr/bin/env zsh
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# Default config file
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default_cfg='/usr/local/etc/backup.cfg'
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# Default date postfix
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default_postfix=$(date +%F-%H%M)
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set -e
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self_name=$0
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function err
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{
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@ -11,30 +8,51 @@ function err
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return $1
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}
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function default_ports
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function cfg_err
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{
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if [[ -z $port_remote ]]; then
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case $protocol in
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('ftp') remote_port='21';;
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('sftp'|'ssh') remote_port='22';;
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(*) err 1 "$protocol is not a valid value for the protocol option.";;
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esac
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[[ -n $1 ]] && echo "$1 is not set in configuration, but is required by $0 to work." >&2
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return 5
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}
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function usage
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{
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echo "usage: $self_name [--help|--config]
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--help -h - show this message
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--config -c - use config from the specified path
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Default config path /usr/local/etc/backup.cfg will be used if invoked without options"
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}
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function read_config
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{
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source $cfg || err 15 'Config file does not exist'
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[[ -z $source_dir ]] && cfg_err 'Backup source'
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[[ -z $remote_host ]] && cfg_err 'Remote host'
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[[ -z $protocol ]] && cfg_err 'Backup protocol'
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[[ -z $backup_dir && $protocol != 'ssh' ]] && cfg_err 'Target directory'
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if [[ -z $local_host ]]; then
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local_host=$HOST
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fi
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src_basename=${source_dir:t}
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src_basedir=${source_dir:h}
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}
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function generate_fullpath
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{
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src_basename=${src_fullpath:t}
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src_basedir=${src_fullpath:h}
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local backup_type
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local postfix
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if [[ -z $outfile_postfix ]]; then
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postfix=$default_postfix
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else
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postfix=$outfile_postfix
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fi
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if [[ -s $snap_file ]]; then
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backup_type='incr'
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else
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backup_type='full'
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fi
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if [[ -z $backup_directory && $protocol != 'ssh' ]]; then
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err 1 "You have not set the backup directory path."
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elif [[ -z $backup_filename ]]; then
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outfile="$backup_directory/$host_local\-$src_basename\_$postfix\_$backup_type.t${compress_format:-ar}"
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if [[ -z $backup_filename ]]; then
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outfile="$backup_dir/${local_host}-${src_basename}_${postfix}_${backup_type}.t${compress_format:-'ar'}"
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else
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outfile=$backup_filename
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fi
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@ -42,6 +60,9 @@ function generate_fullpath
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function compress # compress to stdout
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{
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local compress_flag
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local exclude_option
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local snapshot_option
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case $compress_format in
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('xz') compress_flag='J' ;;
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('bz2') compress_flag='j' ;;
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@ -56,7 +77,7 @@ function compress # compress to stdout
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err 1 "Exclusion list $exclude_list is either unreadable or does not exist."
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fi
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fi
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if [[ -n $snap_file && -n $incremental_backup ]]; then
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if [[ -n $snap_file ]]; then
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if printf '' >> $snap_file; then
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snapshot_option='-g'
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else
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@ -66,22 +87,38 @@ function compress # compress to stdout
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tar cf$compress_flag - -C $src_basedir $src_basename $snapshot_option $snapshot_file $exclude_option $exclude_list --ignore-failed-read
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}
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function encrypt # encrypt if encryption is needed
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{
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if [[ -n $gnupg_key ]]; then
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gpg -r $gnupg_key -e -
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else
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read _
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print $_
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fi
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}
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function store # store to local or remote
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{
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if [[ -z $remote_port ]]; then
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case $protocol in
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('ftp'|'ftps') remote_port='21';;
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('sftp'|'ssh') remote_port='22';;
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('local') unset remote_port;;
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(*) err 1 "$protocol is not a valid value for the protocol option.";;
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esac
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fi
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case $protocol in
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('local') dd of=$outfile ;;
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('ssh') ssh -p$port_remote $user_remote@$host_remote "dd of=$outfile" ;;
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('sftp'|'ftp'|'ftps') curl -ksS -T - $protocol://$host_remote:$port_remote/$outfile -u $user_remote:$pass_remote ;;
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('ssh') ssh -p$remote_port $remote_user@$remote_host "dd of=$outfile" ;;
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('sftp'|'ftp'|'ftps') curl -ksS -T - $protocol://$remote_host:$remote_port/$outfile -u $remote_user:$remote_pass ;;
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(*) err 1 'Wrong protocol!' ;;
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esac
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}
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function main
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{
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while [[ -n $1 ]]; do
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case $1 in
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('--help'|'-h') usage; return 0;;
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('--config'|'-c') shift; opt_cfg=$1; shift;;
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esac
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done
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cfg=${opt_cfg:-'/usr/local/etc/backup.cfg'}
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default_postfix=$(date +%F-%H%M)
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read_config
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generate_fullpath
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compress | store
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return 0
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}
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main $@
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