Function parseDepsOptimizerMetadata

packages/vite/src/bridge/optimizer.ts:83–123

(jsonMetadata: string, depsCacheDir: string)

// https://github.com/vitejs/vite/blob/b7ddfae5f852c2948fab03e94751ce56f5f31ce0/packages/vite/src/node/optimizer/index.ts#L944
function parseDepsOptimizerMetadata(jsonMetadata: string, depsCacheDir: string): DepOptimizationMetadata | undefined {
    const { hash, lockfileHash, configHash, browserHash, optimized, chunks } = JSON.parse(
        jsonMetadata,
        (key: string, value: string) => {
            if (key === 'file' || key === 'src') {
                return normalizePath(path.resolve(depsCacheDir, value));
            }
            return value;
        }
    );
    if (!chunks || Object.values(optimized).some(depInfo => !(depInfo as { fileHash: string }).fileHash)) {
        // outdated _metadata.json version, ignore
        return;
    }
    const metadata = {
        hash,
        lockfileHash,
        configHash,
        browserHash,
        optimized: {},
        discovered: {},
        chunks: {},
        depInfoList: []
    };
    for (const id of Object.keys(optimized)) {
        addOptimizedDepInfo(metadata, 'optimized', {
            ...optimized[id],
            id,
            browserHash
        });
    }
    for (const id of Object.keys(chunks)) {
        addOptimizedDepInfo(metadata, 'chunks', {
            ...chunks[id],
            id,
            browserHash,
            needsInterop: false
        });
    }
    return metadata;
}

// https://github.com/vitejs/vite/blob/b7ddfae5f852c2948fab03e94751ce56f5f31ce0/packages/vite/src/node/optimizer/index.ts#L322
function addOptimizedDepInfo(