Files
docker-cli/components/engine/pkg/urlutil/urlutil.go
Sebastiaan van Stijn a8f8b4ccd8 Move IsGitTransport() to gitutils
This function was only used inside gitutils,
and is written specifically for the requirements
there.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: d3d1aabcc68f65d40acbf1b3adc02d13997bb8e2
Component: engine
2017-06-26 10:07:04 -07:00

45 lines
1.1 KiB
Go

// Package urlutil provides helper function to check urls kind.
// It supports http urls, git urls and transport url (tcp://, …)
package urlutil
import (
"regexp"
"strings"
)
var (
validPrefixes = map[string][]string{
"url": {"http://", "https://"},
"git": {"git://", "github.com/", "git@"},
"transport": {"tcp://", "tcp+tls://", "udp://", "unix://", "unixgram://"},
}
urlPathWithFragmentSuffix = regexp.MustCompile(".git(?:#.+)?$")
)
// IsURL returns true if the provided str is an HTTP(S) URL.
func IsURL(str string) bool {
return checkURL(str, "url")
}
// IsGitURL returns true if the provided str is a git repository URL.
func IsGitURL(str string) bool {
if IsURL(str) && urlPathWithFragmentSuffix.MatchString(str) {
return true
}
return checkURL(str, "git")
}
// IsTransportURL returns true if the provided str is a transport (tcp, tcp+tls, udp, unix) URL.
func IsTransportURL(str string) bool {
return checkURL(str, "transport")
}
func checkURL(str, kind string) bool {
for _, prefix := range validPrefixes[kind] {
if strings.HasPrefix(str, prefix) {
return true
}
}
return false
}