support import/export via CLI

truj / midica

A Music programming language. Translates source code into MIDI. Includes a player. Supports MIDI-Karaoke. Includes a MIDI analyzer.

https://www.midica.org/

Mozilla Public License 2.0

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support import/export via CLI #56

Closed truj closed 4 years ago

truj commented 4 years ago

Move CLI related stuff to a new class.
Add command line arguments for all kinds of imports and exports
Support export to STDOUT instead of a file

For ALDA exports (#55) this would enable using pipes. Cf. Dave's first comment in alda-lang/alda-core#25

Then we could use something like: java -jar midica.jar --cli --import-midi=PATH --export-alda=- | alda play

truj commented 4 years ago

@daveyarwood Midica can now import ALDA files. Therefore ALDA must be installed. So from now on Midica can be used as a GUI player for ALDA files. Under the hood these are the steps for importing:

start alda up, and don't care about the exit status because it will fail if the server is already up
start alda export to export the file to a temporary MIDI file
import the MIDI file into Midica