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use crate::wasm_metadata::{rewrite_wasm, Producers};
use anyhow::Result;
use std::fmt::Debug;
/// Add metadata (module name, producers) to a WebAssembly file.
///
/// Supports both core WebAssembly modules and components. In components,
/// metadata will be added to the outermost component.
#[derive(Debug, Clone, Default)]
#[non_exhaustive]
pub struct AddMetadata {
/// Add a module or component name to the names section
pub name: AddMetadataField<String>,
/// Add a programming language to the producers section
pub language: Vec<(String, String)>,
/// Add a tool and its version to the producers section
pub processed_by: Vec<(String, String)>,
/// Add an SDK and its version to the producers section
pub sdk: Vec<(String, String)>,
/// Contact details of the people or organization responsible,
/// encoded as a freeform string.
pub authors: AddMetadataField<crate::wasm_metadata::Authors>,
/// A human-readable description of the binary
pub description: AddMetadataField<crate::wasm_metadata::Description>,
/// License(s) under which contained software is distributed as an SPDX License Expression.
pub licenses: AddMetadataField<crate::wasm_metadata::Licenses>,
/// URL to get source code for building the image
pub source: AddMetadataField<crate::wasm_metadata::Source>,
/// URL to find more information on the binary
pub homepage: AddMetadataField<crate::wasm_metadata::Homepage>,
/// Source control revision identifier for the packaged software.
pub revision: AddMetadataField<crate::wasm_metadata::Revision>,
/// Version of the packaged software
pub version: AddMetadataField<crate::wasm_metadata::Version>,
}
impl AddMetadata {
/// Process a WebAssembly binary. Supports both core WebAssembly modules, and WebAssembly
/// components. The module and component will have, at very least, an empty name and producers
/// section created.
pub fn to_wasm(&self, input: &[u8]) -> Result<Vec<u8>> {
let add_producers = Producers::from_meta(self);
rewrite_wasm(self, &add_producers, input)
}
}
#[derive(Debug, Clone)]
pub enum AddMetadataField<T: Debug + Clone> {
Keep,
Clear,
Set(T),
}
impl<T: Debug + Clone> AddMetadataField<T> {
pub fn is_clear(&self) -> bool {
matches!(self, Self::Clear)
}
pub fn is_keep(&self) -> bool {
matches!(self, Self::Keep)
}
}
impl<T: Debug + Clone> Default for AddMetadataField<T> {
fn default() -> Self {
Self::Keep
}
}