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Last active September 14, 2024 01:26
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Records how long you practice something (guitar, language, etc) each day, and displays it.
#!/usr/bin/env ruby
class Practice
def initialize
@data = {}
try_to_load_data
end
def record_today(minutes)
@data[key_for(Time.now)] = minutes
end
def write_data_to_file!
File.open(data_file, 'w') do |f|
@data.keys.sort.each do |key|
f.write("#{key}|#{@data[key]}\n")
end
end
end
def data_points
today = Time.now
points = [minutes_for(today)]
1.upto(days_to_show - 1) do |offset|
points.unshift(minutes_for(today - (offset * 86400)))
end
points
end
private
def minutes_for(date)
@data[key_for(date)] || 0
end
def days_to_show
(ENV['PRACTICE_DAYS'] || 14).to_i
end
def data_file
ENV['PRACTICE_DATA'] || "#{ENV['HOME']}/.practice"
end
def key_for(date)
date.strftime(date_format)
end
def date_format
"%d-%m-%Y" # 31-02-2013
end
def try_to_load_data
return unless File.exist?(data_file)
File.open(data_file, 'r').each_line do |line|
date, minutes = line.split('|')
@data[date] = minutes.to_i
end
end
end
practice = Practice.new
if ARGV.empty?
puts practice.data_points.join(' ')
else
case ARGV.first
when 'record'
minutes = ARGV[1].to_i
practice.record_today(minutes)
practice.write_data_to_file!
puts "Recorded #{minutes} minutes for today."
end
end
# records 120 minutes for today
$ practice record 120
# shows last 14 days
$ practice | spark
▁▁▁▁▁▁▁▁▁▁▁▁▆█
# shows last 3 days
$ PRACTICE_DAYS=3 practice | spark
# reads/writes to different data file
$ PRACTICE_DATA=/tmp/datafile.txt practice
@usonianhorizon
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usonianhorizon commented Dec 3, 2021

This is such a simple and elegant script to help with habit tracking.

I have one small suggestion: on my local copy I have changed line 10 from:

@data[key_for(Time.now)] = minutes

to:

@data[key_for(Time.now)] += minutes

so that when I enter in a value several times throughout the day, the sum is used rather than the original value being overwritten.

Regards.

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