mirror of
https://github.com/moby/buildkit.git
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6b27487fec
Sources are a pretty neat extension point, except there are a few code paths that hard-code against each type. This moves code around and adjusts interfaces so that Source implementations are self-contained and merely need to be registered with the source.Manager. Signed-off-by: Alex Suraci <suraci.alex@gmail.com>
111 lines
2.5 KiB
Go
111 lines
2.5 KiB
Go
package git
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import (
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"net/url"
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"path"
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"strings"
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"github.com/moby/buildkit/solver/llbsolver/provenance"
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"github.com/moby/buildkit/source"
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srctypes "github.com/moby/buildkit/source/types"
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"github.com/moby/buildkit/util/sshutil"
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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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AuthTokenSecret string
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AuthHeaderSecret string
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MountSSHSock string
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KnownSSHHosts string
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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 sshutil.IsImplicitSSHTransport(remoteURL) {
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// implicit ssh urls such as "git@.." are not actually a 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 sd := path.Clean(repo.Subdir); sd == "/" || sd == "." {
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repo.Subdir = ""
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}
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return &repo, nil
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}
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func (GitIdentifier) Scheme() string {
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return srctypes.GitScheme
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}
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var _ source.Identifier = (*GitIdentifier)(nil)
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func (id *GitIdentifier) Capture(c *provenance.Capture, pin string) error {
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url := id.Remote
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if id.Ref != "" {
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url += "#" + id.Ref
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}
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c.AddGit(provenance.GitSource{
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URL: url,
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Commit: pin,
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})
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if id.AuthTokenSecret != "" {
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c.AddSecret(provenance.Secret{
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ID: id.AuthTokenSecret,
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Optional: true,
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})
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}
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if id.AuthHeaderSecret != "" {
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c.AddSecret(provenance.Secret{
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ID: id.AuthHeaderSecret,
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Optional: true,
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})
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}
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if id.MountSSHSock != "" {
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c.AddSSH(provenance.SSH{
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ID: id.MountSSHSock,
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Optional: true,
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})
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}
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return nil
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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, "ssh://") || sshutil.IsImplicitSSHTransport(str)
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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 = ""
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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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