Implement mail notification.

* backup.in (backup): New function.
Send mail notification if backup_notify_email is not empty.
* lib/beam/common.in (mail_report): New function.
* beam.conf: Provide examples for the new variables.
* beam.in: Fix typos.
* doc/beam.conf.5in: Document new variables.

1 files changed, 45 insertions, 24 deletions

diff --git a/backup.in b/backup.in
index 983fd72..cbc9f08 100644
--- a/backup.in
+++ b/backup.in
@@ -95,32 +95,53 @@ do
   shift
 done
 
-if [ -n "$backup_logfile" ]; then
-  exec >>$backup_logfile
-  exec 2>&1
-fi
-logit "started"
-
-if test -n "$backup_retain_interval" && test $backup_retain_interval -gt 0; then
-  @LIBEXECDIR@/beam-cleaner --retain $backup_retain_interval $verbose \
-              --suffix .tar.bz2 $backup_archive_dir
-  @LIBEXECDIR@/beam-cleaner --retain $backup_retain_interval $verbose \
-              --suffix .db $backup_snapshot_dir
-fi
-
-runhook prologue_hook
-trap "runhook epilogue_hook" EXIT INT QUIT TERM
-
-for item in $backup_items
-do
-  eval type=\$${item}_type
-  ${type}_backup $item
-done
+backup() {
+  logit "started"
+
+  if test -n "$backup_retain_interval" &&
+     test $backup_retain_interval -gt 0; then
+    @LIBEXECDIR@/beam-cleaner --retain $backup_retain_interval $verbose \
+                --suffix .tar.bz2 $backup_archive_dir
+    @LIBEXECDIR@/beam-cleaner --retain $backup_retain_interval $verbose \
+                --suffix .db $backup_snapshot_dir
+  fi
+
+  runhook prologue_hook
+  trap "runhook epilogue_hook" EXIT INT QUIT TERM
+
+  for item in $backup_items
+  do
+    eval type=\$${item}_type
+    ${type}_backup $item
+  done
+
+  trap - EXIT INT QUIT TERM
+  runhook epilogue_hook
+
+  logit "finished"
+}
 
-trap - EXIT INT QUIT TERM
-runhook epilogue_hook
+if [ -z "$backup_notify_email" ]; then
+  if [ -n "$backup_logfile" ]; then
+    exec >>$backup_logfile
+    exec 2>&1
+  fi
+  backup
+else
+  u=$(umask)
+  umask 077
+  report=$backup_snapshot_dir/report.$$
+  touch $report
+  umask $u
+  if [ -n "$backup_logfile" ]; then
+     ( exec 2>&1; backup ) | tee $report >> $backup_logfile
+  else
+     ( exec 2>&1; backup ) | tee $report
+  fi
+  mail_report $report
+  rm $report
+fi  
 
-logit "finished"
 
 # finis coronat opus