checkSymlink create a symlink in the sysroot.
(src, dest string)
| 784 | |
| 785 | // checkSymlink create a symlink in the sysroot. |
| 786 | func (b BuildConfig) checkSymlink(src, dest string) error { |
| 787 | // Convenient function to create a relative symlink. |
| 788 | createSymlink := func(src, dest string) error { |
| 789 | relPath, err := filepath.Rel(filepath.Dir(dest), src) |
| 790 | if err != nil { |
| 791 | return fmt.Errorf("compute relative path\n %w", err) |
| 792 | } |
| 793 | if err := os.Symlink(relPath, dest); err != nil { |
| 794 | return fmt.Errorf("create symlink\n %w", err) |
| 795 | } |
| 796 | return nil |
| 797 | } |
| 798 | |
| 799 | // Check if the symlink exists. |
| 800 | info, err := os.Lstat(dest) |
| 801 | if err != nil { |
| 802 | if os.IsNotExist(err) { |
| 803 | return createSymlink(src, dest) |
| 804 | } |
| 805 | return fmt.Errorf("checking symlink: %v", err) |
| 806 | } |
| 807 | |
| 808 | // Check the symlink target. |
| 809 | if info.Mode()&os.ModeSymlink != 0 { |
| 810 | // Read the target of the symlink. |
| 811 | realTarget, err := os.Readlink(dest) |
| 812 | if err != nil { |
| 813 | return fmt.Errorf("read symlink target: %v", err) |
| 814 | } |
| 815 | |
| 816 | // If symlink is broken or points to the wrong target, remove it and recreate. |
| 817 | if realTarget != src { |
| 818 | if err := os.RemoveAll(dest); err != nil { |
| 819 | return fmt.Errorf("remove broken symlink: %v", err) |
| 820 | } |
| 821 | return createSymlink(src, dest) |
| 822 | } |
| 823 | |
| 824 | return nil |
| 825 | } |
| 826 | |
| 827 | // Remove if it's not a symlink. |
| 828 | if err = os.RemoveAll(dest); err != nil { |
| 829 | return fmt.Errorf("remove non-symlink: %v", err) |
| 830 | } |
| 831 | return createSymlink(src, dest) |
| 832 | } |
| 833 | |
| 834 | func (b BuildConfig) parseBuildSystem(value string) (name, version string, hasVersion bool, err error) { |
| 835 | value = strings.TrimSpace(value) |