Convert meson dictionary or object from configuration_data() to json string

[aullidolunar]

This how I generate my dictionary:

cfg_data = configuration_data({
	'PROGRAM_NAME': PROGRAM_NAME,
	'PROGRAM_TITLE': PROGRAM_TITLE
})

I'm looking a way to pass the cfg_data as json string to my script:

run_target(
	'test-dict',
	command: [
		PYTHON_EXECUTABLE,
		SCRIPTS.get(6), # configure_file.py
		data_sources.get(0),
		'kakakaka.txt',
		cfg_data
	]
)

I try to use it in a run_target but:

ERROR: run_target keyword argument 'command' was of type array[ConfigurationData | File | str] but should have been array[str | BuildTarget | CustomTarget | CustomTargetIndex | ExternalProgram | File] that cannot be empty

Any ideas?

[eli-schwartz]

I would try using https://mesonbuild.com/Reference-manual_functions.html#configure_file_output_format

Since meson 1.3.0, configure_file(output: 'data.json', configuration: cfg_data, output_format: 'json') can be used to configure a json file instead of a C header

[eli-schwartz]

Instead of json, if you only have two values you could pass them as values to the script, like:

	command: [
		PYTHON_EXECUTABLE,
		SCRIPTS.get(6), # configure_file.py
		data_sources.get(0),
		'kakakaka.txt',
		'--program-name', PROGRAM_NAME,
		'--program-title', PROGRAM_TITLE,
	]

[aullidolunar]

Thanks. In my real code will have more string to look up.

[eli-schwartz]

Yup, makes sense. I mentioned this possibility for completeness -- there's a reason I gave the other answer first. :)