logger: support logdir choosing via Environment variable

Currently the default logdir is DATADIR /log/gluster-block/

This patch will provide a way to change this default logdir via Env variable
$ export GB_LOGDIR=/var/log/gluster-block-new-path/

Note: make sure to restart the processes (cli & daemon) after you set GB_LOGDIR

Change-Id: Id142e4a4dfe7b6ebc9cf8296b8ceb8bff37691b8
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/cli/gluster-block.c b/cli/gluster-block.c
index 04f081f..85b0e80 100644
--- a/cli/gluster-block.c
+++ b/cli/gluster-block.c
@@ -607,6 +607,11 @@ main(int argc, char *argv[])
 {
   if (argc <= 1) {
     glusterBlockHelp();
+    exit(EXIT_FAILURE);
+  }
+
+  if(initLogging()) {
+    exit(EXIT_FAILURE);
   }
 
   return glusterBlockParseArgs(argc, argv);