diff options
author | Micah <micah@leap.se> | 2016-05-24 10:19:33 -0400 |
---|---|---|
committer | Micah <micah@leap.se> | 2016-05-24 10:19:33 -0400 |
commit | 1da5dc55ee48fcd437f5b5df00a5b2f3991ec9f1 (patch) | |
tree | 1794e812d83facd93b3007c42632c63ddf1eb2fc /lib/puppet/parser/functions/to_bytes.rb |
Squashed 'puppet/modules/stdlib/' content from commit 7112363
git-subtree-dir: puppet/modules/stdlib
git-subtree-split: 71123634744b9fe2ec7d6a3e38e9789fd84801e3
Diffstat (limited to 'lib/puppet/parser/functions/to_bytes.rb')
-rw-r--r-- | lib/puppet/parser/functions/to_bytes.rb | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/to_bytes.rb b/lib/puppet/parser/functions/to_bytes.rb new file mode 100644 index 00000000..df490ea8 --- /dev/null +++ b/lib/puppet/parser/functions/to_bytes.rb @@ -0,0 +1,31 @@ +module Puppet::Parser::Functions + newfunction(:to_bytes, :type => :rvalue, :doc => <<-EOS + Converts the argument into bytes, for example 4 kB becomes 4096. + Takes a single string value as an argument. + These conversions reflect a layperson's understanding of + 1 MB = 1024 KB, when in fact 1 MB = 1000 KB, and 1 MiB = 1024 KiB. + EOS + ) do |arguments| + + raise(Puppet::ParseError, "to_bytes(): Wrong number of arguments " + + "given (#{arguments.size} for 1)") if arguments.size != 1 + + arg = arguments[0] + + return arg if arg.is_a? Numeric + + value,prefix = */([0-9.e+-]*)\s*([^bB]?)/.match(arg)[1,2] + + value = value.to_f + case prefix + when '' then return value.to_i + when 'k' then return (value*(1<<10)).to_i + when 'M' then return (value*(1<<20)).to_i + when 'G' then return (value*(1<<30)).to_i + when 'T' then return (value*(1<<40)).to_i + when 'P' then return (value*(1<<50)).to_i + when 'E' then return (value*(1<<60)).to_i + else raise Puppet::ParseError, "to_bytes(): Unknown prefix #{prefix}" + end + end +end |