version.pl -- Manage software versions

The module deals with software versions. It currently implements two features: test whether SWI-Prolog is sufficiently new using check_prolog_version/1 and find GIT version signatures for the running server. Modules that want their version info available through the web-page can do so using a call to register_git_module/2.

 check_prolog_version(+Required) is det

Validate the program is running under Prolog version Required or newer. Required is in numeric notation (e.g. 70718 for 7.7.18)

Errors

- prolog_version_error(Required) if Prolog does not have the required version.

 prolog_version_atom(-Atom) is det

Atom describes the current Prolog version

 register_git_module(+Name, +Options)

Register the directory from which the Prolog file was loaded as a GIT component about which to report version information. This should be used as a directive. Defined options:

directory(Dir)

Use Dir as the location of the GIT repository instead of the directory of the file from which this directive was called. If Dir is not absolute, it is taken relative to the directory holding the file from which this directive was called.

home_url(URL)

Used to create a link to the components home-page.

 git_module_property(?Name, ?Property) is nondet

Property is a property of the named git-component. Defined properties are:

version(Version)

git-describe like version information

directory(Dir)

Base directory of the component

remote(URL)

Location we are cloned from

home_url(URL)

Project home

Undocumented predicates

The following predicates are exported, but not or incorrectly documented.

 git_update_versions(Arg1)