71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
package source
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import (
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"net/url"
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"strings"
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"github.com/pkg/errors"
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)
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type GitIdentifier struct {
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Remote string
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Ref string
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Subdir string
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KeepGitDir bool
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}
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func NewGitIdentifier(remoteURL string) (*GitIdentifier, error) {
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repo := GitIdentifier{}
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if !isGitTransport(remoteURL) {
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remoteURL = "https://" + remoteURL
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}
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var fragment string
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if strings.HasPrefix(remoteURL, "git@") {
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// git@.. is not an URL, so cannot be parsed as URL
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parts := strings.SplitN(remoteURL, "#", 2)
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repo.Remote = parts[0]
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if len(parts) == 2 {
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fragment = parts[1]
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}
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repo.Ref, repo.Subdir = getRefAndSubdir(fragment)
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} else {
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u, err := url.Parse(remoteURL)
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if err != nil {
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return nil, err
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}
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repo.Ref, repo.Subdir = getRefAndSubdir(u.Fragment)
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u.Fragment = ""
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repo.Remote = u.String()
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}
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if repo.Subdir != "" {
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return nil, errors.Errorf("subdir not supported yet")
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}
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return &repo, nil
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}
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func (i *GitIdentifier) ID() string {
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return "git"
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}
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// isGitTransport returns true if the provided str is a git transport by inspecting
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// the prefix of the string for known protocols used in git.
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func isGitTransport(str string) bool {
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return strings.HasPrefix(str, "http://") || strings.HasPrefix(str, "https://") || strings.HasPrefix(str, "git://") || strings.HasPrefix(str, "git@")
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}
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func getRefAndSubdir(fragment string) (ref string, subdir string) {
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refAndDir := strings.SplitN(fragment, ":", 2)
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ref = "master"
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if len(refAndDir[0]) != 0 {
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ref = refAndDir[0]
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}
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if len(refAndDir) > 1 && len(refAndDir[1]) != 0 {
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subdir = refAndDir[1]
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}
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return
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}
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