rspack_plugin_runtime 0.101.2

rspack runtime plugin
Documentation 
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use rspack_core::{
  Compilation, PathData, RuntimeGlobals, RuntimeModule, RuntimeModuleGenerateContext,
  RuntimeTemplate, SourceType, has_hash_placeholder, impl_runtime_module,
};

// TODO workaround for get_chunk_update_filename
#[impl_runtime_module]
#[derive(Debug)]
pub struct GetChunkUpdateFilenameRuntimeModule {}

impl GetChunkUpdateFilenameRuntimeModule {
  pub fn new(runtime_template: &RuntimeTemplate) -> Self {
    Self::with_default(runtime_template)
  }
}

#[async_trait::async_trait]
impl RuntimeModule for GetChunkUpdateFilenameRuntimeModule {
  fn runtime_requirements(
    &self,
    compilation: &Compilation,
  ) -> rspack_core::RuntimeModuleRuntimeRequirements {
    rspack_core::RuntimeModuleRuntimeRequirements {
      dependencies: {
        if has_hash_placeholder(
          compilation
            .options
            .output
            .hot_update_chunk_filename
            .as_str(),
        ) {
          RuntimeGlobals::GET_FULL_HASH
        } else {
          RuntimeGlobals::default()
        }
      },
      write: { RuntimeGlobals::GET_CHUNK_UPDATE_SCRIPT_FILENAME },
      ..Default::default()
    }
  }

  fn template(&self) -> Vec<(String, String)> {
    vec![(
      self.id().to_string(),
      include_str!("runtime/get_chunk_update_filename.ejs").to_string(),
    )]
  }

  async fn generate(
    &self,
    context: &RuntimeModuleGenerateContext<'_>,
  ) -> rspack_error::Result<String> {
    let compilation = context.compilation;
    let runtime_template = context.runtime_template;
    if let Some(chunk_ukey) = self.chunk() {
      let chunk = compilation
        .build_chunk_graph_artifact
        .chunk_by_ukey
        .expect_get(&chunk_ukey);
      let filename = compilation
        .get_path(
          &compilation.options.output.hot_update_chunk_filename,
          PathData::default()
            .chunk_hash_optional(chunk.rendered_hash(
              &compilation.chunk_hashes_artifact,
              compilation.options.output.hash_digest_length,
            ))
            .chunk_name_optional(chunk.name_for_filename_template())
            .content_hash_optional(chunk.rendered_content_hash_by_source_type(
              &compilation.chunk_hashes_artifact,
              &SourceType::JavaScript,
              compilation.options.output.hash_digest_length,
            ))
            .hash(
              format!(
                "' + {}() + '",
                runtime_template.render_runtime_globals(&RuntimeGlobals::GET_FULL_HASH)
              )
              .as_str(),
            )
            .id("' + chunkId + '")
            .runtime(chunk.runtime().as_str()),
        )
        .await?;

      let source = runtime_template.render(
        self.id(),
        Some(serde_json::json!({
          "_filename": format!("'{}'", filename),
        })),
      )?;

      Ok(source)
    } else {
      unreachable!("should attach chunk for get_main_filename")
    }
  }
}