From 549fd13ee5fcf010ee98e6f011366e941dc738b0 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Sat, 17 Dec 2016 22:20:29 +0100
Subject: fastRepair neu

---
 .gitignore    |  1 +
 fastRepair.in | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+)
 create mode 100644 fastRepair.in

diff --git a/.gitignore b/.gitignore
index 284ebda..c636107 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 backup
 backupStatistics
+fastRepair
 lastBackups
 man.commons
 *.common
diff --git a/fastRepair.in b/fastRepair.in
new file mode 100644
index 0000000..fb89956
--- /dev/null
+++ b/fastRepair.in
@@ -0,0 +1,88 @@
+#!/bin/bash
+
+# fastRepair version #VERSION#
+
+[ -r "/etc/backup.conf" ] && \
+  . "/etc/backup.conf"
+
+dummy=false
+if [ $# -eq 1 ] \
+  && [ "$1" == "-d" ]
+then
+  shift
+  dummy=true
+fi
+
+if [ $# -ne 0 ]
+then
+  >&2 echo "too many arguments: '$@'"
+  exit 1
+fi
+
+for backupID in "${!backups[@]}"
+do
+  backupDir="${backups["${backupID}"]%% *}"
+  lastDate="$(
+    ls -1 "${backupDir}" | \
+      sort -r | \
+      grep -m1 '^[0-9]\{4\}\(_[0-9]\{2\}\)\{2\}$'
+  )"
+
+  dateList=$(
+    ls -1 "${backupDir}" | \
+      sort -r | \
+      grep '^[0-9]\{4\}\(_[0-9]\{2\}\)\{2\}$' | \
+      grep -v "^${lastDate}"
+  )
+
+  [ -z "${dateList}" ] \
+    && continue
+
+  set -e
+
+  echo -n "${backupID}: "
+
+  find "${backupDir}${lastDate}" -type f -links 1 | \
+    wc -l
+
+  find "${backupDir}${lastDate}" -type f -links 1 | \
+    sed "s|^${backupDir}${lastDate}/||" | \
+    while read -r datei
+    do
+      for date in ${dateList}
+      do
+        [ -f "${backupDir}${date}/${datei}" ] \
+          || break
+        diff -q "${backupDir}${lastDate}/${datei}" "${backupDir}${date}/${datei}" > /dev/null \
+          || break
+        nlinks=$(
+          stat -c'%h' "${backupDir}${date}/${datei}"
+        )
+        [ ${nlinks} -eq 65000 ] \
+          && continue
+        rights=$(stat -c'%a' "${backupDir}${lastDate}/${datei}")
+        uid=$(stat -c'%u' "${backupDir}${lastDate}/${datei}")
+        gid=$(stat -c'%g' "${backupDir}${lastDate}/${datei}")
+        timeModification=$(stat -c'%y' "${backupDir}${lastDate}/${datei}")
+
+        echo rm \"${backupDir}${lastDate}/${datei}\"
+        echo ln \"${backupDir}${date}/${datei}\" \"${backupDir}${lastDate}/${datei}\"
+        echo chown ${uid}:${gid} \"${backupDir}${lastDate}/${datei}\"
+        echo chmod ${rights} \"${backupDir}${lastDate}/${datei}\"
+        echo touch -m -d \"${timeModification}\" \"${backupDir}${lastDate}/${datei}\"
+
+        if ! ${dummy}
+        then
+          rm "${backupDir}${lastDate}/${datei}"
+          ln "${backupDir}${date}/${datei}" "${backupDir}${lastDate}/${datei}"
+          chown ${uid}:${gid} "${backupDir}${lastDate}/${datei}"
+          chmod ${rights} "${backupDir}${lastDate}/${datei}"
+          touch -m -d "${timeModification}" "${backupDir}${lastDate}/${datei}"
+        fi
+        break
+      done
+    done
+
+  set +e
+
+done
-- 
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