manman
Manifest Manager in Ruby
manman
calculates MD5 digests/hashes for files listed in manifest template.
Usage
manman - Manifest Manager
Usage: manman [options]
-r, --release RELEASE Release Version (e.g. 2013.08)
-e, --env ENV Environment (e.g. TEST)
-u, --valid_until VALID Valid until (e.g. 2014.01.31)
-d, --dir PATH Path to Packages (default is ./paket)
-t, --template FILE Input Template (default is paket.txt.erb)
-o, --out FILE Output File (default is paket.txt)
-v, --version Show version
--verbose Show debug trace
-h, --help Show this message
Examples:
manman -r 2013.08 -e TEST
manman -r 2013.08 -e TEST -u 2014.12.31
Install
Just install the gem:
$ gem install manman
MD5 Digest Samples/Notes
What is MD5?
MD5 is a one-way hashing algorithm for 128 bit (16 byte) digest "signatures" or checksums
(e.g. bd2e45b8fde5af0ead14ceb80ce3256a
).
MD5 Digest for Strings
require 'digest/md5'
digest = Digest::MD5.hexdigest( "Hello MD5 Digest!\n" )
puts digest
# => bd2e45b8fde5af0ead14ceb80ce3256a
MD5 Digest for Files
require 'digest/md5'
digest = Digest::MD5.hexdigest( File.read( ARGV[0] ) )
puts digest
# => fc2f4ec029715550401c99a188b904b1
MD5 Digest Calculation in Steps/Chunks
require 'digest/md5'
all_digest = Digest::MD5.hexdigest( File.read( ARGV[0] ) )
inc_digest = Digest::MD5.new
file = File.open( ARGV[0], 'r' )
file.each_line do |line|
inc_digest.update( line ) # or use <<-alias e.g. inc_digest << line
end
puts inc_digest.hexdigest
puts all_digest
# => fc2f4ec029715550401c99a188b904b1
# => fc2f4ec029715550401c99a188b904b1
License
The manman
scripts are dedicated to the public domain.
Use it as you please with no restrictions whatsoever.