howlong

ETA for a download/upload size on a download/upload speed with given time format. Normal-mode for quick use and Continuous-mode for streamed-input use

The Inception

Due to a slow internet and the desire to download large files (read: video games), I always find myself opening a calculator and going:

120 gigabytes.... times 1024 to megabytes... times 8 to megabits... divide by 3 megabits per second... divide by 3600 to hours... 91 hours, sigh... divide by 24 to days... 3.7 days of cumulative downloads...

And so I finally faced myself in the mirror, realized I'm a programmer, and decided to write a simple tool to make life easier and further smoothen the brain.

Even the Wizards created cantrips to make life easier, so why can't I?

How does it work

Normal Usage

howlong 120GB 3Mb h means a download size of 120 GigaBytes, a per-second download speed of 3 Megabits, and to display in hours. The output will be 91.0222h

Of course, it can be upload speed as well. This tool just maths.

Example

$howlong 420MB 1Mb m
>56.0000m

The following GIF also demonstrates further usage

Continuous Mode

Continuous mode is started with the --continuous or -c flag and supplied with {unit} {unit} [time-unit] Then, input is taken in the form of {down-size} {speed} and an output is given in the form of duration concatted with time-unit

Example

$howlong -c GB KB h
>10 420 
6.9350h
>10 369
7.8933h
EOF

The program will output EOF when done.

The following GIFs also demonstrate how you can pipe to the command

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Help

howlong {size[unit]} {speed[unit]} [time-unit]

size and speed are a float with decimal precision of 1 (for now)

unit uses the convention of B for Byte and b for bit:

• GB (size Default)
• Gb
• MB
• Mb (speed Default)
• KB
• Kb
• B
• b

unit given to speed are treated on a per-second basis. (10Mb means 10 Megabits per second, often seen as 10Mbps)

time-unit has the following options:

• d
• h (default)
• m
• s

Examples

Some examples leveraging default usage

$howlong 10 3
>7.5850h
$howlong 10GB 3Mb h
>7.5850h
$howlong 120GB 3 d
3.7926d

Installation

Cloning the repository and building with go build . or go install . is the recommended install method until v1.0

Onwards to 1.0!

• Input from file (tsv) for --continuous mode
• Persistent configuration (changing defaults, etc.)
• Sufficient Tests
• Sufficient feedback
• Boost Morale
• Figure out how the vims to automagically release binaries on Github

Afterwords

The wizard has 104 GigaMana and a casting speed factor of 10 MMps. The Fireball has already been cast and I have been utterly annihi--- Primeagen coconut oil when?