cairn-lang-cli-2026.8.0 is not a library.
cairn-lang-cli
The cairn command-line interface. This is the only Cairn crate that ships an executable; it wires
the cairn-lang-core compiler, the format backends in
cairn-lang-formats, and (when described logically) the redstone synthesizer
in cairn-lang-redstone into the subcommands an author actually types.
Status
Skeleton. The current binary recognizes --version / --help and prints a stub usage block; every
real subcommand returns a "not implemented yet" error.
Subcommands (planned)
The CLI surface follows the spec; each subcommand maps onto a chapter so the help text and the normative document can never drift.
| Subcommand | Purpose | Spec reference |
|---|---|---|
cairn compile <file.crn> --edition <e> --target <v> |
Compile a .crn source to NBT / schematic output for (edition, version) |
compilation §4.2, versioning-editions |
cairn import <schematic> --mode raw|l1 |
Faithful transliteration of .nbt / .litematic / .schem / .mcstructure into raw-centric .crn |
ecosystem-interop §12.2 |
cairn info <file.crn> --editions java,bedrock |
Report registry compatibility window, semantic-sensitive members, and recommended test targets | versioning-editions §10.5 |
cairn diff-blocks <schematic> <file.crn> |
Voxel XOR + state diff for the self-correction loop | ecosystem-interop §12.2, evaluation |
Targeting rules
Per compilation §4.2:
--editionis required for any subcommand that emits voxels. The same1.21means different things on Java and Bedrock, and Java's DataVersion is unrelated to Bedrock'sblock_version.--targetaccepts either the legacy semver form (1.21.4) or a date-based string; both are resolved through DataVersion as the canonical ordering key (versioning-editions §10.1).
License
Apache-2.0. See LICENSE.