[Choochmeque]

Description

Moves odc onto ci-infrastructure, as eckit, eccodes and metkit are. All upstreams (ecbuild, stack-dependencies, eckit) carry a manifest already.

Packages

• odc: the C++ library, built without Fortran. Nine runner legs as metkit (ubuntu 24.04 clang18/gcc13, ubuntu 26.04 gcc15, rocky 8/9/10, debian 11/12/13) and two HPC legs (gcc/old, gcc 15.2.0) behind run-hpc-ci. Intel and NVIDIA HPC legs are one include block each once the GNU ones are green.
• odc-fortran: the Fortran interface as a package of its own, on the eccodes-fortran pattern: named by the Fortran compiler too, one gcc13/gfortran13 leg, and the one recipe switches ENABLE_FORTRAN on when it builds this package.
• odc-rust: the Rust bindings checked in system mode against the odc and eckit artifacts; publishes nothing.

Workflows

• ci.yml: ci-approval, pre-commit, resolve + wait-build, build, rust, fortran, build-hpc, collect results.
• old_CI.yml: the previous ci.yml, run after CI on pushes to develop and master with ci_group: only-self, until it retires together with .github/ci-config.yml, ci-hpc-config.yml and .cmake-options.

Contributor Declaration

By opening this pull request, I affirm the following:

• All authors agree to the Contributor License Agreement.
• The code follows the project's coding standards.
• I have performed self-review and added comments where needed.
• I have added or updated tests to verify that my changes are effective and functional.
• I have run all existing tests and confirmed they pass.

📖 Documentation 📖
https://sites.ecmwf.int/docs/dev-section/odc/pull-requests/PR-57

[mcocdawc]

Can you also add the run-hpc-ci label, so that the hpc legs are tested.

(I created the necessary labels)

[mcocdawc]

cool cool, Thank you very much!