feat(motoko): migrate templates to @dfinity/motoko@v5.0.0 mops-build recipe#28
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…recipe Move canister definitions (main, candid) from icp.yaml/canister.yaml into mops.toml [canisters] sections and replace main/candid recipe params with a single `name` param, as required by the new mops build-based recipe. Bumps moc toolchain to 1.8.2 across all three Motoko templates. Closes #27 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
With _.canister.name now injected automatically by icp-cli (see dfinity/icp-cli#567), the `name` configuration param is no longer needed in recipe configs. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This was referenced May 26, 2026
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## Summary
- Replaces direct `moc` invocation with `mops build`, aligning the
Motoko recipe with how the Rust recipe delegates to `cargo build`
- Toolchain, dependencies, compiler flags, candid, and per-canister args
all move to `mops.toml` — the recipe retains only icp-specific concerns
(output path, `moc:version`/`template:type` metadata, shrink, compress)
- Removes `main`, `candid`, and `args` recipe params — no replacement
needed, the canister name is injected automatically via
`{{_.canister.name}}`
## Breaking change
| Removed from `icp.yaml` | Moves to `mops.toml` |
|--------------------------|---------------------------------------------------|
| `main: src/main.mo` | `[canisters.backend] main = "src/main.mo"` |
| `candid: backend.did` | `[canisters.backend] candid = "backend.did"` |
| `args: --default-persistent-actors` | `[canisters.backend] args =
["--default-persistent-actors"]` |
New `icp.yaml` — no `configuration:` block needed:
```yaml
canisters:
- name: backend
recipe:
type: "@dfinity/motoko@<version>"
```
New `mops.toml` — canister name must match `icp.yaml`:
```toml
[toolchain]
moc = "1.9.0"
[canisters.backend]
main = "src/main.mo"
candid = "backend.did"
```
## Test plan
- [ ] Build a canister using `mops build` with a matching `[canisters]`
entry in `mops.toml`
- [ ] Confirm `moc:version` and `template:type` metadata are present in
the output WASM
- [ ] Confirm `[moc] args` from `mops.toml` are respected (e.g.
`--default-persistent-actors`)
- [ ] Confirm `shrink` and `compress` options still work
- [ ] Confirm a clear error is shown when the `[canisters]` entry is
missing
> **Note:** `icp-cli-templates` needs a follow-up update to add
`[canisters]` to all Motoko `mops.toml` files. Tracked in
dfinity/icp-cli-templates#27 / dfinity/icp-cli-templates#28.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
Prepares the three Motoko templates for the upcoming
@dfinity/motoko@v5.0.0release, which delegates compilation tomops buildand requires canister definitions to live inmops.toml.motoko/— adds[canisters]inmops.toml; removesmain/candidfromicp.yaml(no recipeconfiguration:block needed)hello-world/motoko-backend/— adds[canisters.backend]inmops.toml; removesmain/candidfromcanister.yamlbitcoin-starter/motoko-backend/— same as hello-world; preserves existing[dependencies]sectionmoctoolchain to1.8.2across all three templatesCloses #27
Migration guide (before/after)
icp.yaml/canister.yaml)mops.toml)main: src/main.mo[canisters.backend] main = "src/main.mo"candid: backend.did[canisters.backend] candid = "backend.did"args: --incremental-gc[canisters.backend] args = ["--incremental-gc"]The canister name in
icp.yamlis used automatically — noname:param needed in the recipe configuration.🤖 Generated with Claude Code