cli/utils/utils.go
2020-01-13 15:32:07 -06:00

95 lines
2 KiB
Go

package utils
import (
"bytes"
"errors"
"fmt"
"os"
"os/exec"
"runtime"
md "github.com/github/gh-cli/markdown"
"github.com/kballard/go-shellquote"
)
func OpenInBrowser(url string) error {
browser := os.Getenv("BROWSER")
if browser == "" {
browser = searchBrowserLauncher(runtime.GOOS)
} else {
browser = os.ExpandEnv(browser)
}
if browser == "" {
return errors.New("Please set $BROWSER to a web launcher")
}
browserArgs, err := shellquote.Split(browser)
if err != nil {
return err
}
endingArgs := append(browserArgs[1:], url)
browseCmd := exec.Command(browserArgs[0], endingArgs...)
return PrepareCmd(browseCmd).Run()
}
func searchBrowserLauncher(goos string) (browser string) {
switch goos {
case "darwin":
browser = "open"
case "windows":
browser = "cmd /c start"
default:
candidates := []string{"xdg-open", "cygstart", "x-www-browser", "firefox",
"opera", "mozilla", "netscape"}
for _, b := range candidates {
path, err := exec.LookPath(b)
if err == nil {
browser = path
break
}
}
}
return browser
}
func normalizeNewlines(d []byte) []byte {
// from https://github.com/MichaelMure/go-term-markdown/issues/1#issuecomment-570702862
// replace CR LF \r\n (windows) with LF \n (unix)
d = bytes.Replace(d, []byte{13, 10}, []byte{10}, -1)
// replace CF \r (mac) with LF \n (unix)
d = bytes.Replace(d, []byte{13}, []byte{10}, -1)
return d
}
func RenderMarkdown(text string) string {
textB := []byte(text)
textB = normalizeNewlines(textB)
mdCompiler := md.Compiler{
Columns: 100,
SyntaxHighlighter: md.SyntaxTheme{
"keyword": md.Style{Color: "#9196ed"},
"comment": md.Style{
Color: "#c0c0c2",
},
"literal": md.Style{
Color: "#aaedf7",
},
"name": md.Style{
Color: "#fe8eb5",
},
},
}
return mdCompiler.Compile(string(textB))
}
func Pluralize(num int, thing string) string {
if num == 1 {
return fmt.Sprintf("%d %s", num, thing)
} else {
return fmt.Sprintf("%d %ss", num, thing)
}
}