When I need to turn a list of input files to a list of output files in a makefile I'd do something like this:
input := file_a.ts file_b.ts file_c.ts
output := $(input:.ts=.js)
How would I do this in meson? I tried using the '@BASENAME@' syntax first:
js = custom_target(
'compile-ts',
input: ts,
command: [ tsc, '-p', tsconfig, '--outDir', '.' ],
output: '@BASENAME@.js'
)
But no luck:
ERROR: custom_target: output cannot contain "@PLAINNAME@" or "@BASENAME@" when there is more than one input
I then tried the replace() function:
...
output: sources.replace('.ts', '.js')
Alas, more errors:
ERROR: Unknown method "replace" in object <[ArrayHolder] holds [list]: ['main.ts', 'window.ts']> of type ArrayHolder.
Surprisingly, I can't find any documentation for such a basic use case.
Edit:
found a workaround using loops:
javascript = []
foreach ts: typescript
javascript += ts.replace('.ts', '.js')
endforeach
But this feels rather dirty... still looking for a better way.
