sergiopasra / erfa-fetch

Essential Routines for Astronomy

Essential Routines for Fundamental Astronomy (ERFA)

This repository contains the tools necessary for downloading the latest Standards of Fundamental Astronomy (SOFA) library and converting it to ERFA, a BSD-licensed code.

To download the latest SOFA and use it to generate ERFA source code, just do:

python sofa_deriver.py

which should generate an erfa directory with all the source code.

To see more options, do python sofa_deriver.py --help

Testing

To compile and execute the tests, do:

[CC] erfa/*.c -Ierfa -lm -o test_erfa
./test_erfa --verbose

where [CC] is replaced by your preferred C compiler.

Making single-file versions

source_flattener.py is provided to condense the source code into a single file. Just do:

python source_flattener.py

to get out erfa.c and erfa.h. In general you probably do not want to do this in the erfa-fetch repository, though, as it won't include any bugfixes in ERFA that have not yet been included in SOFA. Instead, do this in the actual erfa repository:

python source_flattener.py src -n erfa