├── Readme.md
├── examples
    └── simple.go
└── log.go


/Readme.md:
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 1 | 
 2 | # go-cli-log
 3 | 
 4 |   Colored / keyed CLI logging for Go command-line programs.
 5 | 
 6 | ```
 7 |        install : package express@3.2.1
 8 |          fetch : tarball for express
 9 |         unpack : tarball to node_modules/express
10 |         unpack : express/Readme.md
11 |         unpack : express/lib/application.js
12 |         unpack : express/lib/request.js
13 |         unpack : express/lib/response.js
14 |           warn : duplicate express@3.x package found
15 |          error : something exploded
16 | ```
17 | 
18 |   View the [docs](https://godoc.org/github.com/visionmedia/go-cli-log).
19 | 
20 | ## Example
21 | 
22 | ```go
23 | package main
24 | 
25 | import "github.com/visionmedia/go-cli-log"
26 | import "errors"
27 | import "fmt"
28 | 
29 | func main() {
30 |   fmt.Println()
31 |   log.Verbose = true
32 |   log.Info("install", "package %s@%s", "express", "3.2.1")
33 |   log.Debug("fetch", "tarball for express")
34 |   log.Info("unpack", "tarball to node_modules/express")
35 |   log.Debug("unpack", "express/Readme.md")
36 |   log.Debug("unpack", "express/lib/application.js")
37 |   log.Debug("unpack", "express/lib/request.js")
38 |   log.Debug("unpack", "express/lib/response.js")
39 |   log.Warn("duplicate %s package found", "express@3.x")
40 |   log.Error(errors.New("something exploded"))
41 |   fmt.Println()
42 | }
43 | ```
44 | 
45 | # License
46 | 
47 |  MIT


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/examples/simple.go:
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 1 | package main
 2 | 
 3 | import "github.com/tj/go-cli-log"
 4 | import "errors"
 5 | import "fmt"
 6 | 
 7 | func main() {
 8 | 	fmt.Println()
 9 | 	log.Verbose = true
10 | 	log.Info("install", "package %s@%s", "express", "3.2.1")
11 | 	log.Debug("fetch", "tarball for express")
12 | 	log.Info("unpack", "tarball to node_modules/express")
13 | 	log.Debug("unpack", "express/Readme.md")
14 | 	log.Debug("unpack", "express/lib/application.js")
15 | 	log.Debug("unpack", "express/lib/request.js")
16 | 	log.Debug("unpack", "express/lib/response.js")
17 | 	log.Warn("duplicate %s package found", "express@3.x")
18 | 	log.Error(errors.New("something exploded"))
19 | 	fmt.Println()
20 | }
21 | 


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/log.go:
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 1 | package log
 2 | 
 3 | import (
 4 | 	"fmt"
 5 | 	"os"
 6 | )
 7 | 
 8 | // Verbose enables debug.
 9 | var Verbose = false
10 | 
11 | // Width of column.
12 | var Width = "14"
13 | 
14 | // Info.
15 | func Info(key string, format string, args ...interface{}) {
16 | 	p := fmt.Sprintf("\033[36m%"+Width+"s \033[90m:\033[0m ", key)
17 | 	fmt.Printf(p+format+"\n", args...)
18 | }
19 | 
20 | // Debug.
21 | func Debug(key string, format string, args ...interface{}) {
22 | 	if Verbose {
23 | 		p := fmt.Sprintf("\033[96m%"+Width+"s \033[90m:\033[0m ", key)
24 | 		fmt.Printf(p+format+"\n", args...)
25 | 	}
26 | }
27 | 
28 | // Warning.
29 | func Warn(format string, args ...interface{}) {
30 | 	p := fmt.Sprintf("\033[33m%"+Width+"s \033[90m:\033[0m ", "warn")
31 | 	fmt.Printf(p+format+"\n", args...)
32 | }
33 | 
34 | // Error.
35 | func Error(err error) {
36 | 	p := fmt.Sprintf("\033[31m%"+Width+"s \033[90m:\033[0m ", "error")
37 | 	fmt.Fprintf(os.Stderr, p+"%s\n", err.Error())
38 | }
39 | 


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