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https://github.com/TPei/progress_bar.cr
A ProgressBar implementation for the Crystal programming language
https://github.com/TPei/progress_bar.cr
Last synced: 2 months ago
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A ProgressBar implementation for the Crystal programming language
- Host: GitHub
- URL: https://github.com/TPei/progress_bar.cr
- Owner: TPei
- License: mit
- Created: 2017-06-22T23:31:47.000Z (about 7 years ago)
- Default Branch: master
- Last Pushed: 2024-02-29T13:14:18.000Z (4 months ago)
- Last Synced: 2024-02-29T14:33:48.710Z (4 months ago)
- Language: Crystal
- Size: 417 KB
- Stars: 15
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Lists
- awesome-crystal - progress_bar.cr - A simple and customizable progress bar (CLI Utils)
- awesome-crystal - progress_bar.cr - A simple and customizable progress bar (CLI Utils)
- awesome-crystal - progress_bar.cr - A simple and customizable progress bar (Cli Utils)
README
# ProgressBar.cr
###### This project is being built weekly with the latest crystal version (works with v1.7.2 🎉)
## Installation
Add to your shard.yml
```yaml
dependencies:
progress_bar.cr:
github: tpei/progress_bar.cr
branch: master
```
and then install the library into your project with
```bash
$ shards install
```
## Usage
```crystal
require "progress_bar.cr/progress_bar"
# simple
pb = ProgressBar.new
# print empty progress bar
pb.init
pb.message("Setting up now...")
10.times do
sleep 0.1 # very time intense!
pb.tick # increase bar progress by 1
end
# => Setting up now...
# => [##########]
```
### Block Usage
You can use the `with_progress` block to automatically reset and clean
up the progress bar after your block is done.
Block usage will also print the completion_message, even if you don't
completely fill the bar.
```crystal
pb = ProgressBar.new(completion_message: "DONE?")
pb.with_progress do
pb.init
5.times do
sleep 0.1 # very time intense!
pb.tick # increase bar progress by 1
end
end
# => [######## ]
# => DONE?
```
### Available Methods
```crystal
pb.init # prints empty bar
pb.tick: # increases bar filling by one and reprints
pb.message: # allows for printing progress messages
pb.progress(by: 10) # increases bar by desired number
pb.set(5) # set bar to given number
pb.set?(5) # try setting bar => true / false
pb.count # get current count
pb.reset # resets the progress bar to 0, without redrawing, making it
pb.complete # prints finish message, sets bar to max
reusable
```
## initialize options
- ticks: length the bar is made for. calling #tick more often raises an
error (default is 10)
- show_percentage: true / false - whether or not to display the
percentage next to the bar
- completion_message: message to be displayed after progress reaches
100%
- charset / chars: characters to display for bar
### Characters
The bar basically consists of two different types of characters: one
signifying emptiness, one a filled state.
There are a number of different predefined char sets, that you can use:
- :default => [##### ]
- :line => [----- ]
- :equals => [===== ]
- :bar => [█████▒▒▒▒▒]
`ProgressBar.new(charset: :equals)`
You can also just hand in two characters of your own choosing:
`ProgressBar.new(chars: ["O", "X"] # => [XXXXX00000]`
## Errors
Don't exceed the tick number, will throw an exception!
```crystal
# count already == ticks
begin
pb.tick # => (ProgressExceededException)
rescue
puts "Sorry, installation taking longer than expected"
end
sleep 0.1
```