Format of debora output

cmd/debora/main.go

@@ -177,9 +177,14 @@ func cliListProcesses(c *cli.Context) {
 		} else {
 			fmt.Printf("%v processes:\n", remote)
 			for _, proc := range response.Processes {
-				fmt.Printf("  \"%v\" => `%v` (%v)  start:%v end:%v output:%v\n",
-					proc.Label, proc.ExecPath, proc.Pid,
-					proc.StartTime, proc.EndTime, proc.OutputPath)
+				startTimeStr := Green(proc.StartTime.String())
+				endTimeStr := proc.EndTime.String()
+				if !proc.EndTime.IsZero() {
+					endTimeStr = Red(endTimeStr)
+				}
+				fmt.Printf("  %v  start:%v end:%v output:%v\n",
+					RightPadString(Fmt("\"%v\" => `%v` (%v)", proc.Label, proc.ExecPath, proc.Pid), 40),
+					startTimeStr, endTimeStr, proc.OutputPath)
 			}
 		}
 	}

common/colors.go

@@ -0,0 +1,84 @@
+package common
+
+import (
+	"fmt"
+	"strings"
+)
+
+const (
+	ANSIReset      = "\x1b[0m"
+	ANSIBright     = "\x1b[1m"
+	ANSIDim        = "\x1b[2m"
+	ANSIUnderscore = "\x1b[4m"
+	ANSIBlink      = "\x1b[5m"
+	ANSIReverse    = "\x1b[7m"
+	ANSIHidden     = "\x1b[8m"
+
+	ANSIFgBlack   = "\x1b[30m"
+	ANSIFgRed     = "\x1b[31m"
+	ANSIFgGreen   = "\x1b[32m"
+	ANSIFgYellow  = "\x1b[33m"
+	ANSIFgBlue    = "\x1b[34m"
+	ANSIFgMagenta = "\x1b[35m"
+	ANSIFgCyan    = "\x1b[36m"
+	ANSIFgWhite   = "\x1b[37m"
+
+	ANSIBgBlack   = "\x1b[40m"
+	ANSIBgRed     = "\x1b[41m"
+	ANSIBgGreen   = "\x1b[42m"
+	ANSIBgYellow  = "\x1b[43m"
+	ANSIBgBlue    = "\x1b[44m"
+	ANSIBgMagenta = "\x1b[45m"
+	ANSIBgCyan    = "\x1b[46m"
+	ANSIBgWhite   = "\x1b[47m"
+)
+
+// color the string s with color 'color'
+// unless s is already colored
+func treat(s string, color string) string {
+	if len(s) > 2 && s[:2] == "\x1b[" {
+		return s
+	} else {
+		return color + s + ANSIReset
+	}
+}
+
+func treatAll(color string, args ...interface{}) string {
+	var parts []string
+	for _, arg := range args {
+		parts = append(parts, treat(fmt.Sprintf("%v", arg), color))
+	}
+	return strings.Join(parts, "")
+}
+
+func Black(args ...interface{}) string {
+	return treatAll(ANSIFgBlack, args...)
+}
+
+func Red(args ...interface{}) string {
+	return treatAll(ANSIFgRed, args...)
+}
+
+func Green(args ...interface{}) string {
+	return treatAll(ANSIFgGreen, args...)
+}
+
+func Yellow(args ...interface{}) string {
+	return treatAll(ANSIFgYellow, args...)
+}
+
+func Blue(args ...interface{}) string {
+	return treatAll(ANSIFgBlue, args...)
+}
+
+func Magenta(args ...interface{}) string {
+	return treatAll(ANSIFgMagenta, args...)
+}
+
+func Cyan(args ...interface{}) string {
+	return treatAll(ANSIFgCyan, args...)
+}
+
+func White(args ...interface{}) string {
+	return treatAll(ANSIFgWhite, args...)
+}

common/string.go

@@ -2,6 +2,23 @@ package common
 
 import (
 	"fmt"
+	"strings"
 )
 
 var Fmt = fmt.Sprintf
+
+func RightPadString(s string, totalLength int) string {
+	remaining := totalLength - len(s)
+	if remaining > 0 {
+		s = s + strings.Repeat(" ", remaining)
+	}
+	return s
+}
+
+func LeftPadString(s string, totalLength int) string {
+	remaining := totalLength - len(s)
+	if remaining > 0 {
+		s = strings.Repeat(" ", remaining) + s
+	}
+	return s
+}