Implement exclusion patterns and additional tar options in the fs module.

* lib/beam/fs.sh: (fs_backup): New keywords ITEM_tar_options,
ITEM_exclude and ITEM_exclude_files.
* doc/beam.conf.5in: Document new keywords.
* examples/Makefile.am: Remove.
* examples/backup.conf.s3: Remove.
* Makefile.am: Remove examples.
* configure.ac: Remove examples.

1 files changed, 16 insertions, 2 deletions

diff --git a/lib/beam/fs.sh b/lib/beam/fs.sh
index 6d7d4c7..024b761 100755
--- a/lib/beam/fs.sh
+++ b/lib/beam/fs.sh
@@ -57,19 +57,33 @@ fs_check() {
 
 # fs_backup item
 fs_backup() {
-  local basename text root files
+  local basename text root files exclude addopts s e
 
   basename=$1-$week-$round-$level
   eval text=\$${1}_text
   eval root=\$${1}_dir
   eval files=\$${1}_files
+  eval addopts=\$${1}_tar_options
+  
+  eval exclude=\$${1}_exclude
+  for e in $exclude
+  do
+    eval s="$e"
+    addopts="$addopts --exclude=$s"
+  done
+  
+  eval exclude=\$${1}_exclude_from
+  for e in $exclude
+  do
+    addopts="$addopts --exclude-from=$e"
+  done
 
   test -z "$root" && abend 1 "${1}_dir not set"
   test -z "$files" && abend 1 "${1}_files not set"
   test -z "$text" && text="$1"
   initdb $1
   logit "backing up $text ($basename.$tar_suffix)"
-  $dry_run tar $verbose $taroptions \
+  $dry_run tar $verbose $taroptions $addopts \
     -f $backup_archive_dir/$basename.$tar_suffix \
     --listed=$backup_snapshot_dir/$basename.db \
     -C $root $files