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git: update parsing to clarify between scp-style urls
This should also resolve the ports parsing issue. Signed-off-by: Justin Chadwell <me@jedevc.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,46 +1,66 @@ | ||
| package gitutil | ||
|
|
||
| import ( | ||
| "net/url" | ||
| "regexp" | ||
| "strings" | ||
|
|
||
| "github.com/moby/buildkit/util/sshutil" | ||
| ) | ||
|
|
||
| const ( | ||
| HTTPProtocol = iota + 1 | ||
| HTTPSProtocol | ||
| SSHProtocol | ||
| GitProtocol | ||
| UnknownProtocol | ||
| HTTPProtocol = "http" | ||
| HTTPSProtocol = "https" | ||
| SSHProtocol = "ssh" | ||
| GitProtocol = "git" | ||
| UnknownProtocol = "unknown" | ||
| ) | ||
|
|
||
| // ParseProtocol parses a git URL and returns the remote url and protocol type | ||
| func ParseProtocol(remote string) (string, int) { | ||
| prefixes := map[string]int{ | ||
| "http://": HTTPProtocol, | ||
| "https://": HTTPSProtocol, | ||
| "git://": GitProtocol, | ||
| "ssh://": SSHProtocol, | ||
| } | ||
| protocolType := UnknownProtocol | ||
| for prefix, potentialType := range prefixes { | ||
| if strings.HasPrefix(remote, prefix) { | ||
| remote = strings.TrimPrefix(remote, prefix) | ||
| protocolType = potentialType | ||
| var protos = map[string]struct{}{ | ||
| "http": {}, | ||
| "https": {}, | ||
| "git": {}, | ||
| "ssh": {}, | ||
| } | ||
|
|
||
| var hasProtoRegexp = regexp.MustCompile(`^[a-z0-9]+://`) | ||
|
|
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| // ParseProtocol parses a git URL and returns the protocol type, the remote, | ||
| // and the path. | ||
| // | ||
| // ParseProtocol understands implicit ssh URLs such as "git@host:repo", and | ||
| // returns the same response as if the URL were "ssh://git@host/repo". | ||
| func ParseProtocol(remote string) (string, string, string) { | ||
| if hasProtoRegexp.MatchString(remote) { | ||
| u, err := url.Parse(remote) | ||
| if err != nil { | ||
| return remote, "", UnknownProtocol | ||
| } | ||
| } | ||
|
|
||
| if protocolType == UnknownProtocol && sshutil.IsImplicitSSHTransport(remote) { | ||
| protocolType = SSHProtocol | ||
| } | ||
| proto := u.Scheme | ||
| _, ok := protos[proto] | ||
| if !ok { | ||
| proto = UnknownProtocol | ||
| } | ||
|
|
||
| host := u.Host | ||
| if u.User != nil { | ||
| host = u.User.String() + "@" + host | ||
| } | ||
|
|
||
| // remove name from ssh | ||
| if protocolType == SSHProtocol { | ||
| parts := strings.SplitN(remote, "@", 2) | ||
| if len(parts) == 2 { | ||
| remote = parts[1] | ||
| path := u.Path | ||
| path = strings.TrimPrefix(path, "/") | ||
| if u.Fragment != "" { | ||
| path += "#" + u.Fragment | ||
| } | ||
|
|
||
| return proto, host, path | ||
| } | ||
|
|
||
| if sshutil.IsImplicitSSHTransport(remote) { | ||
| remote, path, _ := strings.Cut(remote, ":") | ||
| return SSHProtocol, remote, path | ||
| } | ||
|
|
||
| return remote, protocolType | ||
| return UnknownProtocol, remote, "" | ||
| } |
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