/
git.go
113 lines (99 loc) · 2.44 KB
/
git.go
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package bonito
import (
"context"
"fmt"
"net/url"
"path"
"strings"
"github.com/diamondburned/nix-bonito/bonito/internal/gitutil"
"github.com/pkg/errors"
)
// TODO: figure out a better name.
var opaqueExpanders = map[string]func(*url.URL) error{
"github": commonOpaqueExpander("github.com"),
"gitlab": commonOpaqueExpander("gitlab.com"),
"gitsrht": commonOpaqueExpander("git.sr.ht"),
}
// commonOpaqueExpander handles "x:user/repo" and "x:service.com/user/repo".
func commonOpaqueExpander(host string) func(*url.URL) error {
return func(u *url.URL) error {
parts := strings.Split(u.Opaque, "/")
switch len(parts) {
case 2:
u.Host = host
case 3:
u.Host = parts[0]
parts = parts[1:]
default:
return fmt.Errorf("invalid opaque %q", u.Opaque)
}
u.Path = strings.Join(parts, "/")
return nil
}
}
func resolveGit(ctx context.Context, in ChannelInput) (string, error) {
u, err := in.URL.Parse()
if err != nil {
return "", err
}
var host string
switch u.Scheme {
case "git":
host = u.Host
case "github":
host = "github.com"
case "gitlab":
host = "gitlab.com"
case "gitsrht":
host = "git.sr.ht"
case "gitea":
host = "gitea.com"
default:
return "", fmt.Errorf("unknown git service %q, consider using https://", u.Host)
}
if u.Opaque != "" {
parts := strings.Split(u.Opaque, "/")
switch len(parts) {
case 2:
u.Host = host
case 3:
u.Host = parts[0]
parts = parts[1:]
default:
return "", fmt.Errorf("invalid opaque %q", u.Opaque)
}
u.Path = strings.Join(parts, "/")
u.Host = host
u.Opaque = ""
}
u.Scheme = "https"
commit, err := gitutil.RefCommit(ctx, u.String(), in.Version)
if err != nil {
return "", errors.Wrap(err, "cannot get version")
}
if commit != "" {
// Found a commit associated to a ref. Use that as the version for our
// URL.
in.Version = commit
}
switch host {
case "github.com":
u.Path += "/archive/" + in.Version + ".tar.gz"
case "gitlab.com":
u.Path += fmt.Sprintf("/-/archive/%[1]s/%[2]s-%[1]s.tar.gz", in.Version, path.Base(u.Path))
case "git.sr.ht":
u.Path += "/archive/" + in.Version + ".tar.gz"
case "gitea.com":
u.Path += "/archive/" + in.Version + ".tar.gz"
default:
return "", fmt.Errorf("unknown git service %q, consider using https://", u.Host)
}
return u.String(), nil
}
func popHost(opaque string) (string, string) {
parts := strings.SplitN(opaque, "/", 2)
if len(parts) == 1 {
return parts[0], ""
}
return parts[0], parts[1]
}