DataLad extension for code execution in get commands

This extension adds a new command called "getexec" which can be used to register a command which should be executed on "get". This way it is possible to programmatically create files when "get"ing them, transparently.

This functionality is achieved by using a git-annex special remote which executes the registered command when retrieving data from it. The command itself and it's dependencies are encoded in an URL with a custom scheme, which is then associated with the generated file.

API

High-level API commands

getexec(cmd, path[, dataset, inputs, message])

Get a file by executing a command and register the command for future retrievals

Command line reference

• datalad getexec

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