A Golang command line tool to show a spinner as you wait for some long running jobs to finish.

This is a simple project but carries a tremendous value to me [❤️].

Install chin:

go get -u github.com/adhocore/chin

Use in Go code with WaitGroup:

var wg sync.WaitGroup
s := chin.New().WithWait(&wg)
go s.Start()
// invoke some long running task
// (you can also call s.Stop() from that task)
longTask(&wg)
s.Stop()
wg.Wait()

Refer and run working examples with: go run examples/main.go

You can choose from provided spinner sets chin.Default, chin.Arrows and chin.Dots:

s := chin.New(chin.Arrows)
// or
s := chin.New(chin.Dots)
go s.Start()

chin.Default is selected by default so you don't have to specify it.

You can also define your own spinner set with delay and animation chars like so:

// Animates 0 to 4 in a gap of 50ms:
s := chin.New(chin.Set{50*time.Millisecond, []string{"0", "1", "2", "3", "4", "3", "2", "1"}})
go s.Start()

My other golang projects you might find interesting and useful:

• gronx - Lightweight, fast and dependency-free Cron expression parser (due checker), task scheduler and/or daemon for Golang (tested on v1.13 and above) and standalone usage.
• urlsh - URL shortener and bookmarker service with UI, API, Cache, Hits Counter and forwarder using postgres and redis in backend, bulma in frontend; has web and cli client.
• fast - Check your internet speed with ease and comfort right from the terminal. (It uses adhocore/chin.)
• goic - Go Open ID Connect, is OpenID connect client library for Golang, supports the Authorization Code Flow of OpenID Connect specification.
• jsonc - Golang JSON parser supporting comments, trailing commas and literal newlines.