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implement memoization

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Signed-off-by: Gwenhael Le Moine <gwenhael.le.moine@gmail.com>
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Gwenhael Le Moine 2021-05-27 10:28:22 +02:00
parent 657d4dd05e
commit 1f3c0d9e14
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1 changed files with 146 additions and 135 deletions
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15
lib/ledger.rb
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@ -8,10 +8,21 @@ module Ledger
@binary = 'ledger' @binary = 'ledger'
@file = ENV[ 'LEDGER_FILE' ] @file = ENV[ 'LEDGER_FILE' ]
@last_mtime = Pathname.new(@file).mtime
@cache = Hash.new
def run( options, command = '', command_parameters = '' ) def run( options, command = '', command_parameters = '' )
STDERR.puts "#{@binary} -f #{@file} #{options} #{command} #{command_parameters}" command = "#{@binary} -f #{@file} #{options} #{command} #{command_parameters}"
`#{@binary} -f #{@file} #{options} #{command} #{command_parameters}`
mtime = Pathname.new(@file).mtime
if @last_mtime < mtime || !@cache.has_key?( command )
@last_mtime = mtime
@cache[ command ] = `#{command}`
end
@cache[ command ]
end end
def version def version