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package lfsapi
import (
"github.com/git-lfs/git-lfs/v3/config"
"github.com/git-lfs/git-lfs/v3/creds"
"github.com/git-lfs/git-lfs/v3/errors"
"github.com/git-lfs/git-lfs/v3/lfshttp"
"github.com/git-lfs/git-lfs/v3/ssh"
"github.com/git-lfs/git-lfs/v3/tr"
"github.com/rubyist/tracerx"
)
type Client struct {
Endpoints EndpointFinder
Credentials creds.CredentialHelper
credContext *creds.CredentialHelperContext
client *lfshttp.Client
context lfshttp.Context
access []creds.AccessMode
}
func NewClient(ctx lfshttp.Context) (*Client, error) {
if ctx == nil {
ctx = lfshttp.NewContext(nil, nil, nil)
}
gitEnv := ctx.GitEnv()
osEnv := ctx.OSEnv()
httpClient, err := lfshttp.NewClient(ctx)
if err != nil {
return nil, errors.Wrap(err, tr.Tr.Get("error creating HTTP client"))
}
c := &Client{
Endpoints: NewEndpointFinder(ctx),
client: httpClient,
context: ctx,
credContext: creds.NewCredentialHelperContext(gitEnv, osEnv),
access: creds.AllAccessModes(),
}
return c, nil
}
func (c *Client) Context() lfshttp.Context {
return c.context
}
// SSHTransfer returns either an suitable transfer object or nil if the
// server is not using an SSH remote or the git-lfs-transfer style of SSH
// remote.
func (c *Client) SSHTransfer(operation, remote string) *ssh.SSHTransfer {
if len(operation) == 0 {
return nil
}
endpoint := c.Endpoints.Endpoint(operation, remote)
if len(endpoint.SSHMetadata.UserAndHost) == 0 {
return nil
}
uc := config.NewURLConfig(c.context.GitEnv())
if val, ok := uc.Get("lfs", endpoint.OriginalUrl, "sshtransfer"); ok && val != "negotiate" && val != "always" {
tracerx.Printf("skipping pure SSH protocol connection by request (%s, %s)", operation, remote)
return nil
}
ctx := c.Context()
tracerx.Printf("attempting pure SSH protocol connection (%s, %s)", operation, remote)
sshTransfer, err := ssh.NewSSHTransfer(ctx.OSEnv(), ctx.GitEnv(), &endpoint.SSHMetadata, operation)
if err != nil {
tracerx.Printf("pure SSH protocol connection failed (%s, %s): %s", operation, remote, err)
return nil
}
return sshTransfer
}
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