Initial implementation of the hook feature

The current implementation is modular and allows users to define hooks
in several ways:
  * Use one of the built-in hook types (currently only 'exec')
  * Define their own Hook classes inside ~/.config/oxidized/hook

Exec hook type runs a user defined command with or without shell. It
populates a bunch of environment variables with metadata. The command
can either be run as synchronous or asynchronous. The default is
synchronous.

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/oxidized/hook/noophook.rb b/lib/oxidized/hook/noophook.rb
new file mode 100644
index 0000000..d4673ba
--- /dev/null
+++ b/lib/oxidized/hook/noophook.rb
@@ -0,0 +1,9 @@
+class NoopHook < Oxidized::Hook
+  def validate_cfg!
+    log "Validate config"
+  end
+
+  def run_hook ctx
+    log "Run hook with context: #{ctx}"
+  end
+end