- A list of a tag files that must be included in a conformant Bag. Entries are full path names relative to the Bag base directory. As per [[RFC8493]] section 2.2.4, these tag files need not be listed in tag manifiest files. `Tag-Files-Required` SHOULD NOT include `bag-info.txt` (which is always required), nor any required manifest files, which instead are required by `Manifests-Required` and `Tag-Manifests-Required`. + A list of a tag files that MUST be included in a conformant Bag. Entries are full path names relative to the Bag base directory. As per [[RFC8493]] section 2.2.4, these tag files need not be listed in tag manifiest files. `Tag-Files-Required` SHOULD NOT include `bag-info.txt` (which is always required), nor any required manifest files, which instead are required by `Manifests-Required` and `Tag-Manifests-Required`.
- Every file in `Tag-Files-Required` must also be present in `Tag-Files-Allowed`. + Every file in `Tag-Files-Required` MUST also be covered by the path patterns in `Tag-Files-Allowed`.
- If `Tag-Files-Allowed` is not provided, its value is assumed to be `['*']`, i.e. all tag files are allowed. + Conformants bags MUST NOT contain any payload that does not match the specified `Tag-Files-Allowed`. If `Tag-Files-Allowed` is not provided, its value is assumed to be `['*']`, i.e. all tag files are allowed.
As per [[RFC8493]] section 2, these tag files need not be listed in tag manifest files. `Tag-Files-Required` SHOULD NOT include `bag-info.txt` (which is always required), nor any required manifest files, which instead are required by `Manifests-Required` and `Tag-Manifests-Required`.
- At least all the tag files listed in `Tag-Files-Required` must be in included in `Tag-Files-Allowed`. + At least all the tag files listed in `Tag-Files-Required` MUST be in included in `Tag-Files-Allowed`. +
++ A list of a payload files and/or directories that MUST be included in a conformant Bag. Entries are full path names relative to the Bag base directory, e.g. `data/LICENSE.txt` or `data/src/`. Paths requiring directory existence MUST end with `/`, indicating that in conformant Bags, the directory MUST be present with at least one file or subdirectory (which may have a placeholder file to indicate an empty directory, see [[RFC8493]] section 2.1.3). +
++ Every file in `Payload-Files-Required` MUST also be covered by the path patterns in `Payload-Files-Allowed`. +
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+ A list of payload files or directories that MAY be included in a conformant Bag. Each entry MUST be either a full path name relative to the bag base directory, or a path name pattern in which asterisks can represent zero or more characters (c.f. [glob(7)](http://man7.org/linux/man-pages/man7/glob.7.html)). Paths requiring permitted directories MUST end with `/*` (not `/`).
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+ Conformants bags MUST NOT contain any payload that does not match the specified `Payload-Files-Allowed`. If `Payload-Files-Allowed` is not provided, its value is assumed to be ['*'], i.e. all payload files and directories are allowed. +
++ At least all the payload paths listed in `Payload-Files-Required` MUST be covered by the list of path patterns in `Payload-Files-Allowed`.