/usr/lib/ruby/vendor_ruby/ohai/plugins/linux/filesystem.rb is in ohai 6.14.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Author:: Adam Jacob (<adam@opscode.com>)
# Copyright:: Copyright (c) 2008 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
provides "filesystem"
fs = Mash.new
# Grab filesystem data from df
popen4("df -P") do |pid, stdin, stdout, stderr|
stdin.close
stdout.each do |line|
case line
when /^Filesystem\s+1024-blocks/
next
when /^(.+?)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+\%)\s+(.+)$/
filesystem = $1
fs[filesystem] = Mash.new
fs[filesystem][:kb_size] = $2
fs[filesystem][:kb_used] = $3
fs[filesystem][:kb_available] = $4
fs[filesystem][:percent_used] = $5
fs[filesystem][:mount] = $6
end
end
end
# Grab mount information from /bin/mount
popen4("mount") do |pid, stdin, stdout, stderr|
stdin.close
stdout.each do |line|
if line =~ /^(.+?) on (.+?) type (.+?) \((.+?)\)$/
filesystem = $1
fs[filesystem] = Mash.new unless fs.has_key?(filesystem)
fs[filesystem][:mount] = $2
fs[filesystem][:fs_type] = $3
fs[filesystem][:mount_options] = $4.split(",")
end
end
end
# Gather more filesystem types via libuuid, even devices that's aren't mounted
popen4("blkid -s TYPE") do |pid, stdin, stdout, stderr|
stdin.close
stdout.each do |line|
if line =~ /^(\S+): TYPE="(\S+)"/
filesystem = $1
fs[filesystem] = Mash.new unless fs.has_key?(filesystem)
fs[filesystem][:fs_type] = $2
end
end
end
# Gather device UUIDs via libuuid
popen4("blkid -s UUID") do |pid, stdin, stdout, stderr|
stdin.close
stdout.each do |line|
if line =~ /^(\S+): UUID="(\S+)"/
filesystem = $1
fs[filesystem] = Mash.new unless fs.has_key?(filesystem)
fs[filesystem][:uuid] = $2
end
end
end
# Gather device labels via libuuid
popen4("blkid -s LABEL") do |pid, stdin, stdout, stderr|
stdin.close
stdout.each do |line|
if line =~ /^(\S+): LABEL="(\S+)"/
filesystem = $1
fs[filesystem] = Mash.new unless fs.has_key?(filesystem)
fs[filesystem][:label] = $2
end
end
end
# Grab any missing mount information from /proc/mounts
if File.exists?('/proc/mounts')
File.open('/proc/mounts').read_nonblock(4096).each_line do |line|
if line =~ /^(\S+) (\S+) (\S+) (\S+) \S+ \S+$/
filesystem = $1
next if fs.has_key?(filesystem)
fs[filesystem] = Mash.new
fs[filesystem][:mount] = $2
fs[filesystem][:fs_type] = $3
fs[filesystem][:mount_options] = $4.split(",")
end
end
end
# Set the filesystem data
filesystem fs
|