Add helper functions for checking directory and file blueprint
customizations against the policy of allowed paths.
These functions are not yet used in the distro definitions.
Signed-off-by: Tomáš Hozza <thozza@redhat.com>
Add a helper function for validating the user-provided directory and
file customizations. This is necessary to fail early on invalid input,
instead of when building the image.
The function ensures that:
- No file path is a prefix of another file or directory path
- There are no duplicate file or directory paths in the
customizations
Signed-off-by: Tomáš Hozza <thozza@redhat.com>
Add helper functions for converting slices of directory and file
customizations structures from the `blueprint` package to a slice of
structures from the `fsnode` package, which are used in image type
definitions.
These will be used to convert BP customizations to the os pipeline
customization then used by the pipeline generator.
Signed-off-by: Tomáš Hozza <thozza@redhat.com>
Extend the Blueprint customizations with the representation for custom
Directories and Files specified by the user.
Implement custom Unmarshalers for TOML and JSON. These ensure that all
user-provided values are validated before use and also handle the fact
that user and group ownership for directories and files can be
specifies as a string or as an integer.
Implement helper functions for converting the Blueprint-specific types
for these customizations to their internal representation from `fsnode`
package.
Signed-off-by: Tomáš Hozza <thozza@redhat.com>
