upd-configure

Generate updfile.json manifests for the upd utility

Description

When updating a project using the upd utility, you need to provide a file called updfile.json at the root of the project, called the manifest. Even though you can write this file manually, this is inconvenient because it is formatted with bare JSON and it does not allow dynamic choices based on the environment. For example, on one platform you may want to compile C++ using gcc while on another you may want to use clang++.

To alleviate this limitation you can write a script, in any language, that will have the responsability to generate the updfile.json file the first time the project is worked on. Generally this script is named configure, or in the case of JavaScript, configure.js.

upd-configure provide utility functions to generate such a manifest file.

Interface

upd_configure.Manifest

This class represents a manifest being built.

const manifest = new Manifest();

manifest.cli_template(binary_path, args)

• binary_path: string The name or the path of the command to run. If this is just name, then it'll be search for in the $PATH.
• args: Array<ArgsPart> The argument templates.
• Returns: an opaque object representing the template.

This creates a new command-line template in the manifest and returns a handle to that template. That handle can be used in update rules.

manifest.source(pattern)

TODO

manifest.rule(cli_template, inputs, output_pattern, dependencies)

TODO

manifest.export(dirname)

• dirname: string: the path of the project's root directory.

This writes the manifest to the updfile.json file. dirname should generally just be set to __dirname if your configure.js script is at the root of the project.