Allow config options on a per host basis

Signed-off-by: Rodrigo Campos <rodrigo@sdfg.com.ar>

diff --git a/README b/README
index 878f3dd592f7a2bc6a5f05cff7bc37a6def9abdb..c15200c97064fada6d8602b799e3590df8c3147b 100644 (file)
--- a/README
+++ b/README
@@ -70,13 +70,19 @@ file. Configuration files are searched in this places:
 1. ``/etc/bacaprc``
 2. ``/etc/bacap/bacaprc``
 3. ``bacaprc`` in the same directory as the ``bacap`` script
+4. Optional parameter passed as argument to the script
+5. ``$CONFIG_PATH/$HOST/bacaprc``
 
 Order is important, since all files are read (if possible) and values in the
 last configuration file read overwrites old values. The script takes an optional
-parameter, which is another location to look for a configuration file. The
-configuration file passed as argument will be read last, and an error will be
-printed if can't be found (no error is issued if any of the other configuration
-files are missing).
+parameter, which is another location to look for a configuration file. If the
+configuration file passed as argument can't be found, an error will be printed
+(no error is issued if any of the other configuration files are missing).
+Also, config options could be specified on a per host basis by creating a
+``bacaprc`` file in ``$CONFIG_PATH/$HOST``. As a side effect of this,
+configuration file(s) are read initially and each time the script backups a new
+host. So the configuration file(s) are read at least two times even if you
+backup one host.
 
 The configuration file is a Bash_ script too, and these are the default values:
 

diff --git a/bacap b/bacap
index fb6cc5ec57baccb24df041b6419a5c1b7a5739f0..dd83d2ea489416b7898ff99517c2c3875851b2c8 100755 (executable)
--- a/bacap
+++ b/bacap
@@ -38,13 +38,17 @@ RSYNC_RSH="ssh -c arcfour -o Compression=no -x"
 
 #_INCLUDE_END_
 
+SCRIPT_DIR=$(dirname `readlink -f $0`)
+BACAPRC=$1
 
 # Load configuration files
-source "/etc/bacaprc" 2> /dev/null
-source "/etc/bacap/bacaprc" 2> /dev/null
-source `dirname \`readlink -f "$0"\``/bacaprc 2> /dev/null
-test -n "$1" && source "$1"
-
+load_config() {
+       source "/etc/bacaprc" 2> /dev/null
+       source "/etc/bacap/bacaprc" 2> /dev/null
+       source "$SCRIPT_DIR/bacaprc" 2> /dev/null
+       test -n "$BACAPRC" && source "$BACAPRC"
+}
+load_config
 
 export RSYNC_RSH
 
@@ -86,6 +90,9 @@ plog "========================================================================="
 ret=0
 for host_path in "$CONFIG_PATH"/*
 do
+       # Load default config and override config if correspond
+       load_config
+       source "$host_path/bacaprc" 2>/dev/null
        host=`basename "$host_path"`
        host_backup_path="$BACKUP_PATH/$host"
        dst="$BACKUP_PATH/$host/$date"