durafmt
durafmt is a tiny Go library that formats time.Duration strings (and types) into a human readable format.
go get github.com/hako/durafmt
Why
If you've worked with time.Duration in Go, you most likely have come across this:
53m28.587093086s // :)
The above seems very easy to read, unless your duration looks like this:
354h22m3.24s // :S
Usage
durafmt.ParseString()
package main
import (
"fmt"
"github.com/hako/durafmt"
)
func main() {
duration, err := durafmt.ParseString("354h22m3.24s")
if err != nil {
fmt.Println(err)
}
fmt.Println(duration) // 2 weeks 18 hours 22 minutes 3 seconds
// duration.String() // String representation. "2 weeks 18 hours 22 minutes 3 seconds"
}durafmt.ParseStringShort()
Version of durafmt.ParseString() that only returns the first part of the duration string.
package main
import (
"fmt"
"github.com/hako/durafmt"
)
func main() {
duration, err := durafmt.ParseStringShort("354h22m3.24s")
if err != nil {
fmt.Println(err)
}
fmt.Println(duration) // 2 weeks
// duration.String() // String short representation. "2 weeks"
}durafmt.Parse()
package main
import (
"fmt"
"time"
"github.com/hako/durafmt"
)
func main() {
timeduration := (354 * time.Hour) + (22 * time.Minute) + (3 * time.Second)
duration := durafmt.Parse(timeduration).String()
fmt.Println(duration) // 2 weeks 18 hours 22 minutes 3 seconds
}LimitFirstN()
Like durafmt.ParseStringShort() but for limiting the first N parts of the duration string.
package main
import (
"fmt"
"time"
"github.com/hako/durafmt"
)
func main() {
timeduration := (354 * time.Hour) + (22 * time.Minute) + (3 * time.Second)
duration := durafmt.Parse(timeduration).LimitFirstN(2) // // limit first two parts.
fmt.Println(duration) // 2 weeks 18 hours
}Custom Units
Like durafmt.Units{} and durafmt.Durafmt.Format(units) to stringify duration with custom units.
package main
import (
"fmt"
"time"
"github.com/hako/durafmt"
)
func main() {
timeduration := (354 * time.Hour) + (22 * time.Minute) + (1 * time.Second) + (100*time.Microsecond)
duration := durafmt.Parse(timeduration)
// units in portuguese
units, err := durafmt.DefaultUnitsCoder.Decode("ano,semana,dia,hora,minuto,segundo,milissegundo,microssegundo")
if err != nil {
panic(err)
}
fmt.Println(duration.Format(units)) // 2 semanas 18 horas 22 minutos 1 segundo 100 microssegundos
// custom plural (singular:plural)
units, err = durafmt.DefaultUnitsCoder.Decode("ano,semana:SEMANAS,dia,hora,minuto,segundo,milissegundo,microssegundo")
if err != nil {
panic(err)
}
fmt.Println(duration.Format(units)) // 2 SEMANAS 18 horas 22 minutos 1 segundo 100 microssegundos
}Contributing
Contributions are welcome! Fork this repo, add your changes and submit a PR.
If you would like to fix a bug, add a feature or provide feedback you can do so in the issues section.
durafmt is tested against golangci-lint and you can run tests with go test.
When contributing, running go test; go vet; golint or golangci-lint is recommended.
License
MIT
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