rename backup -> hardlinked-backup

* avoid file conflict with tar's /usr/bin/backup script

1 files changed, 0 insertions, 302 deletions

diff --git a/backup.in b/backup.in
deleted file mode 100755
index f530e08..0000000
--- a/backup.in
+++ /dev/null
@@ -1,302 +0,0 @@
-#!/bin/bash
-
-rsyncOptions='-vxcaHAXF'
-rsync --help | \
-  grep -q -- --may-modify-others && \
-  rsyncOptions="${rsyncOptions} --may-modify-others"
-
-[ -r "#ETCDIR#/backup.conf" ] && \
-  . "#ETCDIR#/backup.conf"
-
-usage()
-{
-  >&2 echo \
-'Usage:  backup /tmp/pidFile /path/to/destination/ user@source:path [proxy_user@ssh_host]
-Backup files from remote with rsync, possibly via SSH-tunnel.
-
-With no arguments, information is expected to be in array $backups in #ETCDIR#/backup.conf with name of executable (e.g. a symlink) as key.
-With one argument, information is expected to be in array ${backups[$1]} in #ETCDIR#/backup.conf.
-
-Options:
-  /tmp/pidFile           location of file to store PID in
-  /path/to/destination   location to store backups in
-  user@source:path       remote data to back up
-  proxy_user@ssh_host    ssh login to proxy node (optional)
-#HELPTEXT#              #'
-  [ -z "$1" ] && exit 1
-  exit $1
-}
-
-extract_ssh_host() {
-  {
-    printf '%s\n' "$1"
-    if [ -f ~/.ssh/config ]; then
-      sed '
-        /^Host\s\+'"$1"'$/,/^Host\s/ {
-          s/^\s*Hostname\s\+//
-          t
-        }
-        d
-      ' ~/.ssh/config
-    fi
-  } \
-    | tail -n1
-}
-
-extract_ssh_ip_protocols() {
-  getent ahosts "$(extract_ssh_host "$1")" \
-    | sed '
-      s/^\([0-9]\+\.\)\{3\}[0-9]\+\s\+STREAM\(\s.*\)\?$/4/
-      t
-      s/^[0-9a-f][0-9a-f:]\+\s\+STREAM\(\s.*\)\?$/6/
-      t
-      d
-    ' \
-    | sort -u \
-    | if [ -f ~/.ssh/config ]; then
-      grep -vxF "$(
-        sed '
-          /^Host\s\+'"$1"'$/,/^Host\s/ {
-            s/^\s*AddressFamily\s\+inet\s*$/6/
-            t
-            s/^\s*AddressFamily\s\+inet6\s*$/4/
-            t
-          }
-          d
-        ' ~/.ssh/config
-      )"
-    else
-      cat
-    fi
-}
-
-connected_ip_versions() {
-  ip -o addr show scope global \
-    | awk '{print $4}' \
-    | sed '
-      s@^\([0-9]\+\.\)\{3\}[0-9]\+\(/[0-9]\+\)\?$@4@
-      t
-      s@^[0-9a-f][0-9a-f:]\+\(/[0-9]\+\)\?$@6@
-      t
-      d
-    ' \
-    | sort -u
-}
-
-if [ $# -eq 1 ]; then
-  if [ "$1" == "--help" ]; then
-    usage 0
-  elif [ "$1" == "--version" ]; then
-    echo '#VERSION#'
-    exit
-  fi
-fi
-
-seldom=false
-if [ $# -eq 0 ] || [ $# -eq 1 ]; then
-  if [ $# -eq 0 ]; then
-    backupID="$(basename $0)"
-  else
-    backupID="$1"
-  fi
-  [ -z "${backups[${backupID}]}" ] && usage
-  set /tmp/${backupID}.pid ${backups[${backupID}]}
-  if printf '%s\n' "${seldomBackups[@]}" | \
-    grep -qxF "${backupID}"; then
-    seldom=true
-  fi
-fi
-
-Basis="$2"
-pidFile="$1"
-QuellIP=$(echo "$3" | sed "s|^[a-zA-Z]*://||; s|^[a-zA-Z]*@||; s|:\?/.*$||")
-
-if [ "$#" -eq 3 ]; then
-  Quelle="$3"
-  ipVer=$(
-    {
-      extract_ssh_ip_protocols "${QuellIP}" \
-        | sort -n
-      extract_ssh_ip_protocols "${QuellIP}" \
-        | grep -xF "$(connected_ip_versions)" \
-        | sort -n
-    } \
-      | tail -n1
-  )
-elif [ "$#" -eq 4 ]; then
-  sshHopp="$4"
-  lokPort=$[$RANDOM/2+8000]
-  HoppIP="${sshHopp#*@}"
-  ipVer=$(
-    {
-      extract_ssh_ip_protocols "${QuellIP}"
-      extract_ssh_ip_protocols "${HoppIP}"
-    } \
-      | sort -n \
-      | uniq -d \
-      | tail -n1
-  )
-  if [ -z ${ipVer} ]; then
-    >&2 echo 'not reachable'
-    exit 11
-  fi
-  if [ ${ipVer} -eq 4 ]; then
-    localAddress='127.0.0.1'
-  elif [ ${ipVer} -eq 6 ]; then
-    localAddress='[::1]'
-  else
-    >&2 echo 'ip version of hopp and target must be the same'
-    exit 1
-  fi
-  rsyncShell="-e ssh -${ipVer} -p${lokPort} -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null"
-  tunnelBefehl="ssh -${ipVer} -t -t -L${localAddress}:${lokPort}:${QuellIP}:22 ${sshHopp} while sleep 60; do date; done"
-  Quelle="$(echo "$3" | sed "s|${QuellIP}|${localAddress}|")"
-else
-  usage
-fi
-
-rsyncOptions="${rsyncOptions}${ipVer}"
-
-if [ ! -d ${Basis} ]; then
-  for neededMount in "${neededMounts[@]}"; do
-    if ! mountpoint -q "${neededMount}"; then
-      >&2 printf 'Mountpoint %s is not available.\n' "${neededMount}"
-      exit 11
-    fi
-  done
-  exit 2
-fi
-
-neues_Datum="${Basis}/$(date "+%Y_%m_%d")"
-neues="${Basis}/aktuell"
-linkdests=""
-for s in $(ls -1 "${Basis}" | sort -r | grep -vxF -m 20 aktuell ); do
-  linkdests="${linkdests} --link-dest ${Basis}/${s}"
-done
-
-if [ ! "$(whoami)" == "root" ]; then
-  echo "I need to be root."
-  exit 3
-fi
-
-[ -e "${neues_Datum}" ] && exit 4
-if ${seldom}; then
-  for date_diff in $(seq ${seldomness}); do
-    if [ -e "${Basis}/$(date '+%Y_%m_%d' -d@$(($(date '+%s')-24*60*60*date_diff)))" ]; then
-      exit 4
-    fi
-  done
-fi
-[ -w "${Basis}" ] || exit 11
-[ -s "${pidFile}" ] && [ -d "/proc/$(cat "${pidFile}")" ] && exit 5
-
-echo $$ > "${pidFile}"
-
-if [ -n "${tunnelBefehl}" ]; then
-  preConnectHook
-  ${tunnelBefehl} &
-  backgroundPid=$!
-  sleep 4
-fi
-
-for toExclude in "${excludes[@]}"; do
-  excludeArgs="${excludeArgs} --exclude ${toExclude}"
-done
-
-mkdir -p "${neues}/wip"
-chmod 750 "${neues}"{,/wip}
-chown root:root "${neues}"{,/wip}
-if [ -z "${rsyncShell}" ]; then
-  preConnectHook
-  if [ -z "${Quelle#*@*:/}" ]; then
-    ssh "-${ipVer}" "${Quelle%:/}" '
-      pacman-conf Architecture
-      find /var/lib/pacman/local -name desc -exec cat {} +
-    ' \
-    | {
-      read -r arch
-      sed -n '
-        /^%\(NAME\|VERSION\|ARCH\)%/ {
-          N
-          s/\n/ /
-          p
-        }
-      ' \
-      | sed '
-        N
-        N
-        s@^%NAME% \(\S\+\)\n%VERSION% \(\S\+\)\n%ARCH% \(\S\+\)$@\1-\2-\3.pkg.tar.zst@
-        t
-        w /dev/stderr
-        d
-      ' \
-      | while read -r file; do
-        cache_file='/var/cache/pacman/pkg/'"${file}"
-        if [ ! -f "${cache_file}" ]; then
-          case "${arch}" in
-            'x86_64')
-              for url in \
-                'https://mirror.f4st.host/archlinux/pool/packages/'"${file}" \
-                'https://archive.archlinux.org/packages/'"${file:0:1}"'/'"${file%-*}"'/'"${file}"; do
-                curl -Lo "${cache_file}" "${url}" || continue
-                tar --zstd -tf "${cache_file}" >/dev/null 2>&1 && break
-              done
-            ;;
-            'i486'|'i686'|'pentium4')
-              for url in \
-                'https://mirror.archlinux32.org/pool/'"${file}" \
-                'https://archive.archlinux32.org/packages/'"${file:0:1}"'/'"${file%-*}"'/'"${file}"; do
-                curl -Lo "${cache_file}" "${url}" || continue
-                tar --zstd -tf "${cache_file}" >/dev/null 2>&1 && break
-              done
-            ;;
-            *)
-              for url in \
-                'https://mirror.archlinux.org/'"${arch}"'/'{extra,community,core,alarm,aur}'/'"${file}"; do
-                curl -Lo "${cache_file}" "${url}" || continue
-                tar --zstd -tf "${cache_file}" >/dev/null 2>&1 && break
-              done
-            ;;
-          esac
-        fi
-        if [ -f "${cache_file}" ]; then
-          tar -C "${neues:?}/wip/" --zstd -xkf "${cache_file}"
-        fi
-      done
-    }
-  fi
-  rsync ${rsyncOptions} \
-    ${linkdests} \
-    ${excludeArgs} \
-    ${Quelle} "${neues}/wip/"
-  sleep 1
-  preConnectHook
-  rsync ${Quelle}
-else
-  preConnectHook
-  rsync "${rsyncShell}" \
-    ${rsyncOptions} \
-    ${linkdests} \
-    ${excludeArgs} \
-    ${Quelle} "${neues}/wip/"
-  sleep 1
-  preConnectHook
-  rsync "${rsyncShell}" ${Quelle}
-fi
-erg=$?
-
-[ -n "${backgroundPid}" ] && kill "${backgroundPid}"
-
-if [ ${erg} -eq 0 ] || [ ${erg} -eq 24 ] && ! rmdir "${neues}/wip" 2>/dev/null; then
-  chmod o-rwx "${neues}/wip"
-  neueres_Datum="${Basis}/$(date "+%Y_%m_%d")"
-  if [ ! -e "${neueres_Datum}" ]; then
-    neues_Datum="${neueres_Datum}"
-  fi
-  mv "${neues}/wip" "${neues_Datum}"
-  rmdir "${neues}"
-  rm "${pidFile}"
-else
-  rm "${pidFile}"
-  exit 11
-fi