gotools/refactor/rename/mvpkg.go

// Move, given a package path and a destination package path, will try
// to move the given package to the new path. The Move function will
// first check for any conflicts preventing the move, such as a
// package already existing at the destination package path. If the
// move can proceed, it builds an import graph to find all imports of
// the packages whose paths need to be renamed. This includes uses of
// the subpackages of the package to be moved as those packages will
// also need to be moved. It then renames all imports to point to the
// new paths, and then moves the packages to their new paths.
func Move(ctxt *build.Context, from, to, moveTmpl string) error { … }

// srcDir returns the absolute path of the srcdir containing pkg.
func srcDir(ctxt *build.Context, pkg string) (string, error) { … }

// subpackages returns the set of packages in the given srcDir whose
// import path equals to root, or has "root/" as the prefix.
func subpackages(ctxt *build.Context, srcDir string, root string) map[string]bool { … }

type mover …

func (m *mover) checkValid() error { … }

// moveCmd produces the version control move command used to move fromDir to toDir by
// executing the given template.
func moveCmd(moveTmpl, fromDir, toDir string) (string, error) { … }

func (m *mover) move() error { … }

// sameLine reports whether two positions in the same file are on the same line.
func sameLine(fset *token.FileSet, x, y token.Pos) bool { … }

var moveDirectory …