mirror of
https://github.com/NixOS/nix
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19 lines
970 B
Markdown
19 lines
970 B
Markdown
---
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synopsis: "C API: functions for locking and loading a flake"
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issues: 10435
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prs: [12877, 13098]
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---
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This release adds functions to the C API for handling the loading of flakes. Previously, this had to be worked around by using `builtins.getFlake`.
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C API consumers and language bindings now have access to basic locking functionality.
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It does not expose the full locking API, so that the implementation can evolve more freely.
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Locking is controlled with the functions, which cover the common use cases for consuming a flake:
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- `nix_flake_lock_flags_set_mode_check`
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- `nix_flake_lock_flags_set_mode_virtual`
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- `nix_flake_lock_flags_set_mode_write_as_needed`
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- `nix_flake_lock_flags_add_input_override`, which also enables `virtual`
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This change also introduces the new `nix-fetchers-c` library, whose single purpose for now is to manage the (`nix.conf`) settings for the built-in fetchers.
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More details can be found in the [C API documentation](@docroot@/c-api.md).
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