added verbose mode info message

[backmeupscotty.git] / backmeupscotty

diff --git a/backmeupscotty b/backmeupscotty
index 3f68b1f9a91cc95d318443017f47b0faa15c7502..1df23cd77c087c45ef247b714e6d3bd7a7f88327 100644 (file)
--- a/backmeupscotty
+++ b/backmeupscotty
@@ -6,33 +6,59 @@ ARCHIVE_KEEPNBACKUPS=30
 ARCHIVE_KEEPNDAYS=30
 BACKUP_RUNEVERYNTHDAY=1
 
 ARCHIVE_KEEPNDAYS=30
 BACKUP_RUNEVERYNTHDAY=1
 

-function upperme {
-    echo $(basename $0) | tr '[:lower:]' '[:upper:]'
+_ERROR_ENCOUNTERED=0
+_UPPERME=$(echo $(basename $0) | tr '[:lower:]' '[:upper:]')
+
+function timestamp {
+    date +'[%y-%m-%d|%H:%M:%S]'
+}
+
+function scottyline {
+    echo $(timestamp) $_UPPERME: $@

 }
 
 function scottyinfo {
 }
 
 function scottyinfo {

-    echo $(upperme): $@ 
+    if [ $_ERROR_ENCOUNTERED -eq 0 ]; then
+       scottyline $@
+    else
+       scottyline $@ >&2
+    fi

 }
 
 function scottyerror {
 }
 
 function scottyerror {

-    echo $(upperme): $@ >&2 
+    scottyline $@ >&2
+    if [ $_ERROR_ENCOUNTERED -eq 0 ]; then
+       _ERROR_ENCOUNTERED=1
+       scottyline "Going into verbose mode after error encounter." >&2
+    fi
+}
+
+function ssh255 {
+    ssh $@
+    sshret=$?
+
+    if [ $sshret -eq 255 ]; then
+       scottyerror "SSH connection failed!"
+       exit 1
+    else
+       return $sshret
+    fi

 }
 
 function grepbackups {
 }
 
 function grepbackups {

-    ssh $REMOTE_HOST "ls $REMOTE_DIR" | grep -E '[0-9]+-[0-9]+'
+    ssh255 $REMOTE_HOST "ls $REMOTE_DIR" | grep -E '[0-9]+-[0-9]+'

 }
 
 function isIncomplete {
 }
 
 function isIncomplete {

-    if ( ssh $REMOTE_HOST '[ -d '$REMOTE_DIR/incomplete' ]' ); then
+    if ( ssh255 $REMOTE_HOST '[ -d '$REMOTE_DIR/incomplete' ]' ); then

        return 0
     else
        return 1
     fi
 }
 
        return 0
     else
        return 1
     fi
 }
 

-function isIncompleteOrNthDay {
-    if isIncomplete || \
-       [ $(( ( $(date +%s) / (60*60*24) ) % $BACKUP_RUNEVERYNTHDAY )) -eq 0 ]; 
+function isNthDay {
+    if [ $(( ( $(date +%s) / (60*60*24) ) % $BACKUP_RUNEVERYNTHDAY )) -eq 0 ]; 

     then
        return 0
     else
     then
        return 0
     else


@@ -40,18 +66,32 @@ function isIncompleteOrNthDay {
     fi 
 }
 
     fi 
 }
 

+function latestTooOld {
+    for oldbackup in $(grepbackups); do
+       tstamp=$(echo $oldbackup | cut -d'-' -f1)
+       
+       if [ $(( $(date +%s) - $tstamp )) -lt \
+           $(( ($BACKUP_RUNEVERYNTHDAY*24+12)*60*60 )) ]
+       then
+           return 1
+       fi
+    done
+
+    return 0
+}
+

 function scottysync {
     timestamp=$(date +%s)
 
 function scottysync {
     timestamp=$(date +%s)
 

-    scottyinfo Syncing $SYNC_SRC to $REMOTE_HOST:$REMOTE_DIR @$timestamp
+    scottyinfo "Syncing $SYNC_SRC to $REMOTE_HOST:$REMOTE_DIR @$timestamp."

 
     if [ ! -d "$SYNC_SRC" ]; then
 
     if [ ! -d "$SYNC_SRC" ]; then

-       scottyerror Source dir $SYNC_SRC does not exist. Not syncing!
+       scottyerror "Source dir $SYNC_SRC does not exist. Not syncing!"

        return 1
     fi
 
     if [ $(ls -A "$SYNC_SRC" | wc -l) -eq 0 ]; then
        return 1
     fi
 
     if [ $(ls -A "$SYNC_SRC" | wc -l) -eq 0 ]; then

-       scottyerror Source dir $SYNC_SRC is empty. Not syncing!
+       scottyerror "Source dir $SYNC_SRC is empty. Not syncing!"

        return 1
     fi
 
        return 1
     fi
 


@@ -65,16 +105,16 @@ function scottysync {
        rsync_exclude=$(eval echo --exclude={$SYNC_EXC} | tr -d {})
     fi
 
        rsync_exclude=$(eval echo --exclude={$SYNC_EXC} | tr -d {})
     fi
 

-    if (ssh $REMOTE_HOST '[ ! -d '$REMOTE_DIR' ]'); then
-       scottyinfo Creating destination directory $REMOTE_HOST:$REMOTE_DIR
-       ssh $REMOTE_HOST "mkdir $REMOTE_DIR"
+    if (ssh255 $REMOTE_HOST '[ ! -d '$REMOTE_DIR' ]'); then
+       scottyinfo "Creating destination directory $REMOTE_HOST:$REMOTE_DIR."
+       ssh255 $REMOTE_HOST "mkdir $REMOTE_DIR"

     fi
 
     if isIncomplete; then
     fi
 
     if isIncomplete; then

-       scottyerror Continuing old incomplete backup
+       scottyerror "Continuing old incomplete backup."

     fi
 
     fi
 

-    scottyinfo Starting rsync
+    scottyinfo "Starting rsync."

     rsync -e ssh \
        -v -aHAX --numeric-ids --delete --delete-excluded \
        --link-dest=$dir_current \
     rsync -e ssh \
        -v -aHAX --numeric-ids --delete --delete-excluded \
        --link-dest=$dir_current \


@@ -82,9 +122,11 @@ function scottysync {
        $SYNC_SRC/ $REMOTE_HOST:$dir_incomplete/
     
     if [ $? -eq 0 ]; then
        $SYNC_SRC/ $REMOTE_HOST:$dir_incomplete/
     
     if [ $? -eq 0 ]; then

-       scottyinfo Timestamping completed backup and linking to current backup
-       ssh $REMOTE_HOST \
+       scottyinfo "Timestamping completed backup and linking to current backup."
+       ssh255 $REMOTE_HOST \

            "mv $dir_incomplete $dir_timestamped && rm -f $dir_current && ln -s $(basename $dir_timestamped) $dir_current"
            "mv $dir_incomplete $dir_timestamped && rm -f $dir_current && ln -s $(basename $dir_timestamped) $dir_current"

+    else
+       scottyerror "Rsync failed."

     fi
 
     while [ $(grepbackups | wc -l) -gt $ARCHIVE_KEEPNBACKUPS ]; do
     fi
 
     while [ $(grepbackups | wc -l) -gt $ARCHIVE_KEEPNBACKUPS ]; do


@@ -92,8 +134,8 @@ function scottysync {
        oldestbackuptstamp=$(echo $oldestbackup | cut -d'-' -f1)
 
        if [ $oldestbackuptstamp -lt $(( $(date +%s) - $ARCHIVE_KEEPNDAYS*60*60*24 )) ]; then
        oldestbackuptstamp=$(echo $oldestbackup | cut -d'-' -f1)
 
        if [ $oldestbackuptstamp -lt $(( $(date +%s) - $ARCHIVE_KEEPNDAYS*60*60*24 )) ]; then

-           scottyinfo Removing old backup $oldestbackup
-           ssh $REMOTE_HOST rm -r "$REMOTE_DIR/$oldestbackup"
+           scottyinfo "Removing old backup $oldestbackup."
+           ssh255 $REMOTE_HOST rm -r "$REMOTE_DIR/$oldestbackup"

        else
            break
        fi
        else
            break
        fi


@@ -101,22 +143,18 @@ function scottysync {
 }
 
 function deleteLock {
 }
 
 function deleteLock {

-    if ! rmdir /tmp/$(basename $0).lock; then
+    if ! rmdir /var/lock/$(basename $0); then

        scottyerror "Could not delete lockfile /tmp/$(basename $0).lock!"
     fi
 }
 
        scottyerror "Could not delete lockfile /tmp/$(basename $0).lock!"
     fi
 }
 

-function prepare {
-    scottyinfo "Preparing for sync"
-}
-

 function cleanup_abort {
 function cleanup_abort {

-    scottyerror "Caught exit signal! Cleaning up..."
+    scottyerror "Caught exit signal! Cleaning up."

 
     cleanup ABORT
 
     if [ $(jobs -p) ]; then
 
     cleanup ABORT
 
     if [ $(jobs -p) ]; then

-       scottyerror TERMinating remaining child processes...
+       scottyerror "TERMinating remaining child processes."

        kill $(jobs -p)
     fi
 
        kill $(jobs -p)
     fi
 


@@ -165,11 +203,19 @@ function backmeupscotty {
        esac
     done
     
        esac
     done
     

-    if ! isIncompleteOrNthDay; then
-       scottyinfo "This is not the nth day and no incomplete backup exists."
+    ssh255 $REMOTE_HOST exit
+
+    if latestTooOld; then
+       scottyerror "The latest backup is too old."
+    elif isNthDay; then
+       scottyinfo "This is the nth day."
+    else
+       scottyinfo "No backup has to be done. Exiting."

        exit 0
     fi
 
        exit 0
     fi
 

+    scottyinfo "Performing backup."
+

     trap cleanup_abort EXIT
 
     prepare
     trap cleanup_abort EXIT
 
     prepare


@@ -180,7 +226,7 @@ function backmeupscotty {
     exit 0
 }
 
     exit 0
 }
 

-if ! mkdir /tmp/$(basename $0).lock; then
+if ! mkdir /var/lock/$(basename $0); then

     scottyerror "Another instance of $(basename $0) is still running!"
     exit 1
 else
     scottyerror "Another instance of $(basename $0) is still running!"
     exit 1
 else