9.8.4 Automatically update auxiliary information

convert-ly should be used to update the documentation, the snippets, and the regression tests. This not only makes the necessary syntax changes, it also tests the convert-ly rules.

The automatic updating is a three step process. First, be sure you are in the top-level source directory. Then, for the documentation, do:

find Documentation/ -name '*.itely' | xargs convert-ly -e --from “X.Y.Z

where X.Y.Z is the version number of the last released development version.

Next, for the snippets, do:

find Documentation/snippets/ -name '*.ly' | xargs convert-ly -e --from “X.Y.Z

Finally, for the regression tests, do:

find input/regression/ -name '*.ly' | xargs convert-ly -e --from “X.Y.Z

LilyPond — Contributor’s Guide