github.com/benchkram/bob@v0.0.0-20240314204020-b7a57f2f9be9/pkg/composectl/logger.go (about)

     1  package composectl
     2  
     3  import (
     4  	"fmt"
     5  	"io"
     6  	"sync"
     7  
     8  	"github.com/docker/compose/v2/pkg/api"
     9  	"github.com/logrusorgru/aurora"
    10  )
    11  
    12  var colorPool = []aurora.Color{
    13  	aurora.BlueFg,
    14  	aurora.GreenFg,
    15  	aurora.CyanFg,
    16  	aurora.MagentaFg,
    17  	aurora.YellowFg,
    18  	aurora.RedFg,
    19  }
    20  
    21  type logger struct {
    22  	writer          io.Writer
    23  	mutex           sync.Mutex
    24  	containerColors map[string]aurora.Color
    25  }
    26  
    27  var _ api.LogConsumer = (*logger)(nil)
    28  
    29  func NewLogConsumer(w io.Writer) (*logger, error) {
    30  	return &logger{
    31  		writer:          w,
    32  		containerColors: map[string]aurora.Color{},
    33  	}, nil
    34  }
    35  
    36  func (l *logger) colorize(cid string) string {
    37  	color, ok := l.containerColors[cid]
    38  	if ok {
    39  		return aurora.Colorize(cid, color).String()
    40  	}
    41  
    42  	color = colorPool[len(l.containerColors)%len(colorPool)]
    43  	l.containerColors[cid] = color
    44  
    45  	return aurora.Colorize(cid, color).String()
    46  }
    47  
    48  func (l *logger) Log(_, container, msg string) {
    49  	l.mutex.Lock()
    50  	_, _ = l.writer.Write([]byte(fmt.Sprintf("[%s] %s\n", l.colorize(container), msg)))
    51  	l.mutex.Unlock()
    52  }
    53  
    54  func (l *logger) Status(container, msg string) {
    55  	l.mutex.Lock()
    56  	_, _ = l.writer.Write([]byte(fmt.Sprintf("[%s] %s\n", l.colorize(container), msg)))
    57  	l.mutex.Unlock()
    58  }
    59  
    60  func (l *logger) Register(container string) {
    61  	l.mutex.Lock()
    62  	_, _ = l.writer.Write([]byte(fmt.Sprintf("[%s] registered\n", l.colorize(container))))
    63  	l.mutex.Unlock()
    64  }