eve
Version:
Filesystem-first framework for durable backend AI agents that run anywhere.
1 lines • 3.57 kB
JavaScript
import{existsSync}from"node:fs";import{join,relative,sep}from"node:path";import{lstat,mkdir,readFile,readdir,readlink,writeFile}from"node:fs/promises";import{createHash}from"node:crypto";import{COMPILED_AGENT_MANIFEST_KIND,ROOT_COMPILED_AGENT_NODE_ID}from"#compiler/manifest.js";import{bundleAuthoredModuleForGeneration,bundleAuthoredModuleMapForGeneration}from"#internal/authored-module-loader.js";import{serializeCompiledManifestForFingerprint}from"#internal/compiled-manifest-fingerprint.js";const MATERIALIZED_MODULES_DIRECTORY=`authored-modules`,MATERIALIZED_MODULES_INDEX=`authored-modules.json`,INSTRUMENTATION_EXTENSIONS=[`.ts`,`.mts`,`.js`,`.mjs`];async function materializeAuthoredModules(e){let n=join(e.runtimeAppRoot,`.eve`,`compile`),r=await readCompiledManifest(join(n,`compiled-agent-manifest.json`)),i=join(n,MATERIALIZED_MODULES_DIRECTORY),o=createHash(`sha256`);await mkdir(i,{recursive:!0}),o.update(`manifest\0`).update(serializeCompiledManifestForFingerprint({manifest:r,runtimeAppRoot:e.runtimeAppRoot})).update(`\0`);let s=await bundleAuthoredModuleMapForGeneration({manifest:r,moduleMapPath:join(n,`module-map.mjs`)}),c=createMaterializedModuleFileName(ROOT_COMPILED_AGENT_NODE_ID,`module-map`,s),u=join(MATERIALIZED_MODULES_DIRECTORY,c);await writeFile(join(i,c),s),o.update(`module-map\0`).update(s).update(`\0`);let d=resolveInstrumentationModule(r.agentRoot),f;if(d!==void 0){let e=await bundleAuthoredModuleForGeneration(d,{externalDependencies:r.config.build?.externalDependencies??[]}),n=createMaterializedModuleFileName(ROOT_COMPILED_AGENT_NODE_ID,`instrumentation`,e);await writeFile(join(i,n),e),f=join(MATERIALIZED_MODULES_DIRECTORY,n),o.update(`instrumentation\0`).update(e).update(`\0`)}await hashDirectoryIfPresent({fingerprint:o,path:join(n,`workspace-resources`),root:join(n,`workspace-resources`)});let p={fingerprint:o.digest(`hex`),moduleMap:u,version:2};return f!==void 0&&(p.instrumentation=f),await writeFile(join(n,MATERIALIZED_MODULES_INDEX),`${JSON.stringify(p)}\n`),p}async function readMaterializedAuthoredModuleIndex(n){let r=join(n,`.eve`,`compile`,MATERIALIZED_MODULES_INDEX);if(!existsSync(r))return;let i=JSON.parse(await readFile(r,`utf8`));if(i.version!==2||typeof i.fingerprint!=`string`||i.fingerprint.length===0||typeof i.moduleMap!=`string`||i.moduleMap.length===0||i.instrumentation!==void 0&&typeof i.instrumentation!=`string`)throw Error(`Invalid materialized authored module index at "${r}".`);return i}async function readCompiledManifest(e){let t=JSON.parse(await readFile(e,`utf8`));if(t.kind!==COMPILED_AGENT_MANIFEST_KIND)throw Error(`Invalid compiled agent manifest at "${e}".`);return t}function resolveInstrumentationModule(n){for(let r of INSTRUMENTATION_EXTENSIONS){let i=join(n,`instrumentation${r}`);if(existsSync(i))return i}}function createMaterializedModuleFileName(e,t,n){return`${createHash(`sha256`).update(e).update(`\0`).update(t).update(`\0`).update(n).digest(`hex`)}.mjs`}async function hashDirectoryIfPresent(r){if(!existsSync(r.path))return;let a=await lstat(r.path),l=toPortablePath(relative(r.root,r.path));if(a.isSymbolicLink()){r.fingerprint.update(l).update(`\0link\0`).update(await readlink(r.path)).update(`\0`);return}if(a.isDirectory()){for(let e of(await readdir(r.path)).sort())await hashDirectoryIfPresent({...r,path:join(r.path,e)});return}a.isFile()&&r.fingerprint.update(l).update(`\0file\0`).update(await readFile(r.path)).update(`\0`)}function toPortablePath(e){return e.split(sep).join(`/`)}export{materializeAuthoredModules,readMaterializedAuthoredModuleIndex};