1 files changed, 41 insertions, 0 deletions
diff --git a/lib/byteback/disk_free.rb b/lib/byteback/disk_free.rb
new file mode 100755
index 0000000..33952a3
--- /dev/null
+++ b/lib/byteback/disk_free.rb
@@ -0,0 +1,41 @@
+
+module Byteback
+	# Icky way to find out free disc space on our mount
+	#
+	class DiskFree
+		def initialize(mount)
+			@mount = mount
+		end
+
+		def total
+			all[2]
+		end
+
+		def used
+			all[3]
+		end
+
+		def available
+			all[4]
+		end
+
+		def fraction_used
+			disk_device, disk_fs, disk_total, disk_used, disk_available, *rest = all
+			disk_used.to_f / disk_available
+		end
+
+		protected
+
+		def all
+			disk_device, disk_fs, disk_total, disk_used, disk_available, *rest = 
+				df.
+				split("\n")[1].
+				split(/\s+/).
+				map { |i| /^[0-9]+$/.match(i) ? i.to_i : i }
+		end
+
+		def df
+			`/bin/df -T -P -B1 #{@mount}`
+		end
+	end
+end