func fetch(ctx *gb.Context, path string, recurse bool) error {
m, err := vendor.ReadManifest(manifestFile(ctx))
if err != nil {
return fmt.Errorf("could not load manifest: %v", err)
}
repo, extra, err := vendor.DeduceRemoteRepo(path, insecure)
if err != nil {
return err
}
if m.HasImportpath(path) {
return fmt.Errorf("%s is already vendored", path)
}
wc, err := repo.Checkout(branch, tag, revision)
if err != nil {
return err
}
rev, err := wc.Revision()
if err != nil {
return err
}
branch, err := wc.Branch()
if err != nil {
return err
}
dep := vendor.Dependency{
Importpath: path,
Repository: repo.URL(),
Revision: rev,
Branch: branch,
Path: extra,
}
if err := m.AddDependency(dep); err != nil {
return err
}
dst := filepath.Join(ctx.Projectdir(), "vendor", "src", dep.Importpath)
src := filepath.Join(wc.Dir(), dep.Path)
if err := vendor.Copypath(dst, src); err != nil {
return err
}
if err := vendor.WriteManifest(manifestFile(ctx), m); err != nil {
return err
}
if err := wc.Destroy(); err != nil {
return err
}
if !recurse {
return nil
}
for done := false; !done; {
paths := []struct {
Root, Prefix string
}{
{filepath.Join(runtime.GOROOT(), "src"), ""},
{filepath.Join(ctx.Projectdir(), "src"), ""},
}
m, err := vendor.ReadManifest(filepath.Join("vendor", "manifest"))
if err != nil {
return err
}
for _, d := range m.Dependencies {
paths = append(paths, struct{ Root, Prefix string }{filepath.Join(ctx.Projectdir(), "vendor", "src", filepath.FromSlash(d.Importpath)), filepath.FromSlash(d.Importpath)})
}
dsm, err := vendor.LoadPaths(paths...)
if err != nil {
return err
}
is, ok := dsm[filepath.Join(ctx.Projectdir(), "vendor", "src", path)]
if !ok {
return fmt.Errorf("unable to locate depset for %q", path)
}
missing := findMissing(pkgs(is.Pkgs), dsm)
switch len(missing) {
case 0:
done = true
default:
// sort keys in ascending order, so the shortest missing import path
// with be fetched first.
keys := keys(missing)
sort.Strings(keys)
pkg := keys[0]
gb.Infof("fetching recursive dependency %s", pkg)
if err := fetch(ctx, pkg, false); err != nil {
return err
}
}
}
return nil
}
Importpath: d.Importpath,
Repository: repo.URL(),
Revision: rev,
Branch: branch,
Path: extra,
}
if err := vendor.RemoveAll(filepath.Join(ctx.Projectdir(), "vendor", "src", filepath.FromSlash(d.Importpath))); err != nil {
// TODO(dfc) need to apply vendor.cleanpath here to remove indermediate directories.
return fmt.Errorf("dependency could not be deleted: %v", err)
}
dst := filepath.Join(ctx.Projectdir(), "vendor", "src", filepath.FromSlash(dep.Importpath))
src := filepath.Join(wc.Dir(), dep.Path)
if err := vendor.Copypath(dst, src); err != nil {
return err
}
if err := m.AddDependency(dep); err != nil {
return err
}
if err := vendor.WriteManifest(manifestFile(ctx), m); err != nil {
return err
}
if err := wc.Destroy(); err != nil {
return err
}
}