Struct BuildConfig 

pub struct BuildConfig {
    pub command: Option<String>,
    pub out_dir: PathBuf,
    pub render_command: Option<String>,
}

Build step that produces the static artifact published by a mesofact-static workload.

deny_unknown_fields is load-bearing (R658-B1). TOML scopes every key written after a table header into that table, so a manifest that puts a top-level MesofactStaticWorkload field — routes was the one that actually happened — below [build] silently produces build.routes instead. Without this attribute serde discards the stray key, the top-level field falls back to its default (or fails with a missing field error pointing at the wrong place), and the manifest deploys with a declaration nobody honours. Every real workload.toml in the camp and the CLI’s own yah cloud site init scaffold carried exactly that shape for months without a single reader noticing.

The cost is forward-compat: a manifest carrying a [build] key this binary doesn’t know is a hard parse error, not an ignored key. That is deliberate. A build config is a small, slow-moving, load-bearing table — a key that silently does nothing is worse here than one that refuses to load, because the failure surfaces as a wrong artifact rather than an error.

Note deny_unknown_fields is inert for the postcard kamaji wire, which is non-self-describing and positional — this only constrains TOML/JSON.

Fields

command: Option<String>

Shell command run from the manifest’s directory, e.g. "bun run build".

Absent means “this project has no external bundler step” (R838-B1), not “run nothing by accident”. mesofact new’s scaffold deliberately omits it — the in-process pipeline (mesofact-dev / mesofact-build) produces out_dir with no third binary, no package manager and no Node — so requiring it here made every scaffolded project’s manifest fail to load through this envelope. Setting it opts back out to a shell command, which is what a project with its own bundler wants.

Consumers were already written for this: read_workload_build (app/yah/cli/src/cloud.rs) has always typed it Option<String> and yah cloud bundle build only needs it under --run-build; the bundle sync arm refuses None by name. MesofactStaticReconciler:: rebuild_static skips the build step for None — the same thing it already did for a workload with no workload.toml at all.

WIRE NOTE: this is Option<String> on the postcard kamaji wire, so it costs a leading 0x00/0x01 tag byte that the bare String did not have. A pre-R838 node decoding a new frame fails loudly (the string’s length byte is not a valid Option tag) rather than silently reading a shifted field — which is why this is Option and not a #[serde(default)] empty String sentinel. Not a cluster_epochs surface: those hash the raft modules and the openraft pin, not workload_spec.

out_dir: PathBuf

Output directory (relative to the manifest) the reconciler uploads.

render_command: Option<String>

Data-only re-render command (W225 §3 “revalidate”), run from the manifest’s directory against the already-built out_dir — no bundler. {route} is substituted with the invalidated route pattern, e.g. "../../../../scripts/mesofact-build.sh render . --route {route} --all" (R746-F9 — resolves a prebuilt binary rather than shelling to cargo, which cannot even find the package from a site’s own dir). Absent → a revalidate dispatch republishes out_dir as-is.

Trait Implementations

impl Clone for BuildConfig

fn clone(&self) -> BuildConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BuildConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BuildConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for BuildConfig

impl PartialEq for BuildConfig

fn eq(&self, other: &BuildConfig) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for BuildConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for BuildConfig

impl TS for BuildConfig

type WithoutGenerics = BuildConfig

If this type does not have generic parameters, then WithoutGenerics should just be Self. If the type does have generic parameters, then all generic parameters must be replaced with a dummy type, e.g ts_rs::Dummy or ().
The only requirement for these dummy types is that EXPORT_TO must be None.

type OptionInnerType = BuildConfig

If the implementing type is std::option::Option<T>, then this associated type is set to T. All other implementations of TS should set this type to Self instead.

fn ident(cfg: &Config) -> String

Identifier of this type, excluding generic parameters.

fn docs() -> Option<String>

JSDoc comment to describe this type in TypeScript - when TS is derived, docs are automatically read from your doc comments or #[doc = ".."] attributes

fn name(cfg: &Config) -> String

Name of this type in TypeScript, including generic parameters

fn decl_concrete(cfg: &Config) -> String

Declaration of this type using the supplied generic arguments. The resulting TypeScript definition will not be generic. For that, see TS::decl(). If this type is not generic, then this function is equivalent to TS::decl().

fn decl(cfg: &Config) -> String

Declaration of this type, e.g. type User = { user_id: number, ... }. This function will panic if the type has no declaration.

fn inline(cfg: &Config) -> String

Formats this types definition in TypeScript, e.g { user_id: number }. This function will panic if the type cannot be inlined.

fn inline_flattened(cfg: &Config) -> String

Flatten a type declaration. This function will panic if the type cannot be flattened.

fn visit_generics(v: &mut impl TypeVisitor)

where Self: 'static,

Iterates over all type parameters of this type.

fn output_path() -> Option<PathBuf>

Returns the output path to where T should be exported, relative to the output directory. The returned path does not include any base directory.

fn visit_dependencies(v: &mut impl TypeVisitor)

where Self: 'static,

Iterates over all dependency of this type.

fn dependencies(cfg: &Config) -> Vec<Dependency>

where Self: 'static,

Resolves all dependencies of this type recursively.

fn export(cfg: &Config) -> Result<(), ExportError>

where Self: 'static,

Manually export this type to the filesystem. To export this type together with all of its dependencies, use TS::export_all.

fn export_all(cfg: &Config) -> Result<(), ExportError>

where Self: 'static,

Manually export this type to the filesystem, together with all of its dependencies. To export only this type, without its dependencies, use TS::export.

fn export_to_string(cfg: &Config) -> Result<String, ExportError>

where Self: 'static,

Manually generate bindings for this type, returning a String. This function does not format the output, even if the format feature is enabled.