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eve

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Filesystem-first framework for durable backend AI agents that run anywhere.

github.com/vercel/eve

vercel/eve

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import{expectObjectRecord}from"#internal/authored-module.js";import{existsSync,mkdirSync,realpathSync,statSync,writeFileSync}from"node:fs";import{dirname,isAbsolute,join,resolve}from"node:path";import{createHash}from"node:crypto";import{createCompiledModuleMapSource}from"#compiler/module-map.js";import{buildSingleRolldownChunk,buildWithNitroRolldown}from"#internal/bundler/nitro-rolldown.js";import{createAuthoredAssetImportPlugin}from"#internal/authored-asset-import-plugin.js";import{assertNoWorkflowDirectivePrologue}from"#internal/authored-directive-prologue.js";import{createAuthoredModuleBundleError}from"#internal/authored-module-bundle.js";import{createAuthoredModuleEvaluationError}from"#internal/authored-module-evaluation-error.js";import{createAuthoredPackageTsConfigPathsPlugin}from"#internal/authored-package-tsconfig-paths.js";import{createExtensionScopePlugin,createFixedNamespaceScopePlugin}from"#internal/bundler/extension-scope-plugin.js";import{CACHED_CHANNEL_PREFIX,RESOLVE_EXTENSIONS,createDistributionPackageBoundaryPlugin,createGenerationPackageBoundaryPlugin,createRuntimeLoaderPackageBoundaryPlugin,isNodeModulesPath,isPathImport,normalizeExternalDependencies}from"#internal/authored-package-boundary.js";import{createNodeEsmCompatBannerPlugin}from"#internal/node-esm-compat-banner.js";const AUTHORED_BUNDLED_MODULE_EXTENSION=/\.[cm]?[jt]sx?$/,AUTHORED_MODULE_BUNDLE_DIRECTORY_PATH=join(`node_modules`,`.cache`,`eve`,`authored-modules`),CHANNEL_MODULE_CACHE_KEY=`__eveChannelModuleCache__`;function getChannelModuleCache(){return globalThis[CHANNEL_MODULE_CACHE_KEY]}const inFlightModuleLoads=new Map;function loadAuthoredModuleNamespace(e,t={}){let n=createInFlightModuleLoadKey(resolve(e),t),r=inFlightModuleLoads.get(n);if(r!==void 0)return r;let i=(async()=>{try{return await doLoadAuthoredModuleNamespace(e,t)}finally{inFlightModuleLoads.delete(n)}})();return inFlightModuleLoads.set(n,i),i}async function doLoadAuthoredModuleNamespace(t,n){return expectObjectRecord(AUTHORED_BUNDLED_MODULE_EXTENSION.test(t)?await loadBundledAuthoredModule(t,n):await import(createFileImportSpecifier(t)),`Expected "${t}" to export a module namespace object.`)}function createFileImportSpecifier(e){let t=e.replaceAll(`\\`,`/`);return/^[A-Za-z]:\//.test(t)?`file:///${encodeURI(t)}`:t.startsWith(`/`)?`file://${encodeURI(t)}`:t}async function bundleAuthoredModuleCode(e,t={}){return await buildAuthoredModuleBundle(e,t,{channelIdentity:!0,packageBoundaryPlugin:createRuntimeLoaderPackageBoundaryPlugin({externalDependencies:normalizeExternalDependencies(t.externalDependencies),packageRoot:resolveAuthoredPackageRoot(e)}),plugins:[],sourcemap:`inline`})}async function bundleAuthoredModuleForGeneration(e,t={}){return removeRolldownModuleRegionComments(await buildAuthoredModuleBundle(e,t,{channelIdentity:!1,packageBoundaryPlugin:createGenerationPackageBoundaryPlugin({externalDependencies:normalizeExternalDependencies(t.externalDependencies),packageRoot:resolveAuthoredPackageRoot(e)}),plugins:[createAuthoredDirectiveGuardPlugin()],sourcemap:!1}))}async function bundleExtensionDistributionGraph(e){let t=[createAuthoredDirectiveGuardPlugin(),createAuthoredRelativeExtensionResolverPlugin({extensions:RESOLVE_EXTENSIONS}),createAuthoredAssetImportPlugin(),createAuthoredPackageTsConfigPathsPlugin({appPackageRoot:e.packageRoot,extensions:RESOLVE_EXTENSIONS}),createNodeEsmCompatBannerPlugin({includeRequire:!0}),createDistributionPackageBoundaryPlugin({packageRoot:e.packageRoot,runtimeDependencies:e.runtimeDependencies})];try{let n=await buildWithNitroRolldown({cwd:e.packageRoot,input:Object.fromEntries(e.entries.map(e=>[e.name,e.path])),platform:`node`,plugins:t,resolve:{extensions:[...RESOLVE_EXTENSIONS]},tsconfig:resolveAuthoredTsConfigPath(e.packageRoot),write:!1,output:{chunkFileNames:`_chunks/[name]-[hash].mjs`,codeSplitting:!0,comments:!1,entryFileNames:`[name].mjs`,format:`esm`,sourcemap:!1}}),r=new Map;for(let e of n.output)e.type===`chunk`&&r.set(e.fileName,removeRolldownModuleRegionComments(e.code));return r}catch(t){throw createAuthoredModuleBundleError(e.packageRoot,t)}}async function bundleAuthoredModuleMapForGeneration(e){let t=resolveAuthoredPackageRoot(e.manifest.agentRoot),n=normalizeExternalDependencies([e.manifest,...e.manifest.subagents.map(e=>e.agent)].flatMap(e=>e.config.build?.externalDependencies??[])),r=createCompiledModuleMapSource({manifest:e.manifest,moduleMapPath:e.moduleMapPath}),i=createExtensionScopePlugin(e.manifest.extensionMounts.map(e=>({packageNamespace:e.packageNamespace,sourceRoot:e.sourceRoot}))),a=[createVirtualGenerationModuleMapPlugin({id:e.moduleMapPath,source:r}),createAuthoredDirectiveGuardPlugin(),i,createAuthoredRelativeExtensionResolverPlugin({extensions:RESOLVE_EXTENSIONS}),createAuthoredAssetImportPlugin(),createAuthoredPackageTsConfigPathsPlugin({appPackageRoot:t,extensions:RESOLVE_EXTENSIONS}),createNodeEsmCompatBannerPlugin({includeRequire:!0}),createGenerationPackageBoundaryPlugin({externalDependencies:n,packageRoot:t})].filter(e=>e!==null);try{return removeRolldownModuleRegionComments((await buildSingleRolldownChunk(`authored module map`,{cwd:t,input:e.moduleMapPath,platform:`node`,plugins:a,resolve:{extensions:[...RESOLVE_EXTENSIONS]},tsconfig:resolveAuthoredTsConfigPath(t),output:{comments:!1,format:`esm`,sourcemap:!1}})).code)}catch(t){throw createAuthoredModuleBundleError(e.moduleMapPath,t)}}function createVirtualGenerationModuleMapPlugin(e){return{name:`eve-generation-module-map`,resolveId(t){return t===e.id?t:void 0},load(t){return t===e.id?{code:e.source,moduleType:`js`}:void 0}}}async function buildAuthoredModuleBundle(e,t,n){let r=n.channelIdentity?getChannelModuleCache():void 0,i=resolveAuthoredPackageRoot(e),a=resolveAuthoredTsConfigPath(i),o=[r&&r.size>0?{name:`eve-channel-identity`,async resolveId(e,t,n){if(!/channels[/\\]/.test(e)||n.kind!==`import-statement`)return;let i=await this.resolve(e,t,{kind:n.kind,skipSelf:!0});if(i===null||typeof i.id!=`string`)return;let a=resolve(i.id);if(r.has(a))return{id:`${CACHED_CHANNEL_PREFIX}${a}`}},load(e){if(!e.startsWith(CACHED_CHANNEL_PREFIX))return;let t=e.slice(CACHED_CHANNEL_PREFIX.length);return{code:[`const cache = globalThis["${CHANNEL_MODULE_CACHE_KEY}"];`,`export default cache.get(${JSON.stringify(t)});`].join(` `),moduleType:`js`}}}:null,...n.plugins,t.extensionScopeNamespace===void 0?null:createFixedNamespaceScopePlugin(t.extensionScopeNamespace),createAuthoredRelativeExtensionResolverPlugin({extensions:RESOLVE_EXTENSIONS}),createAuthoredAssetImportPlugin(),createAuthoredPackageTsConfigPathsPlugin({appPackageRoot:i,extensions:RESOLVE_EXTENSIONS}),createNodeEsmCompatBannerPlugin({includeRequire:!0}),n.packageBoundaryPlugin].filter(e=>e!==null);try{return(await buildSingleRolldownChunk(`authored module for "${e}"`,{cwd:i,input:e,platform:`node`,plugins:o,resolve:{extensions:[...RESOLVE_EXTENSIONS]},tsconfig:a,output:{comments:!1,format:`esm`,sourcemap:n.sourcemap}})).code}catch(t){throw createAuthoredModuleBundleError(e,t)}}function createAuthoredDirectiveGuardPlugin(){return{name:`eve-authored-directive-guard`,async transform(e,t){!AUTHORED_BUNDLED_MODULE_EXTENSION.test(t)||isNodeModulesPath(t)||await assertNoWorkflowDirectivePrologue({filePath:t,source:e})}}}function removeRolldownModuleRegionComments(e){return e.split(` `).filter(e=>!e.startsWith(`//#region `)&&e!==`//#endregion`).join(` `)}async function loadBundledAuthoredModule(e,r){let i=await bundleAuthoredModuleCode(e,r),o=normalizeExternalDependencies(r.externalDependencies),s=createHash(`sha1`).update(e).update(`\0`).update(o.join(`\0`)).update(`\0`).update(r.extensionScopeNamespace??``).update(`\0`).update(i).digest(`hex`),c=join(resolveAuthoredPackageRoot(e),AUTHORED_MODULE_BUNDLE_DIRECTORY_PATH),l=join(c,`${s}.mjs`);existsSync(l)||(mkdirSync(c,{recursive:!0}),writeFileSync(l,i));try{return await import(`${createFileImportSpecifier(l)}?v=${s}`)}catch(t){throw createAuthoredModuleEvaluationError(e,t)}}function createAuthoredRelativeExtensionResolverPlugin(e){return{name:`eve-authored-relative-extension-resolver`,resolveId(t,n){if(n===void 0||n.startsWith(`\0`)||n.startsWith(CACHED_CHANNEL_PREFIX)||!isPathImport(t))return;let r=resolveExistingImportPath(isAbsolute(t)?t:resolve(dirname(n),t),e.extensions);if(r!==void 0)return{id:isNodeModulesPath(r)?toRealModulePath(r):r}}}}function toRealModulePath(e){try{return realpathSync(e)}catch{return e}}function createInFlightModuleLoadKey(e,t){return`${e}\0${normalizeExternalDependencies(t.externalDependencies).join(`\0`)}\0${t.extensionScopeNamespace??``}`}function resolveExistingImportPath(e,t){if(isFile(e))return e;for(let n of t){let t=`${e}${n}`;if(isFile(t))return t}for(let n of t){let t=join(e,`index${n}`);if(isFile(t))return t}}function isFile(e){try{return statSync(e).isFile()}catch{return!1}}function resolveAuthoredTsConfigPath(e){for(let n of[`tsconfig.json`,`jsconfig.json`]){let r=join(e,n);if(existsSync(r))return r}return!1}function resolveAuthoredPackageRoot(e){let n=dirname(e);for(;;){if(existsSync(join(n,`package.json`)))return n;let r=dirname(n);if(r===n)throw Error(`Failed to resolve the authored package root for "${e}".`);n=r}}export{bundleAuthoredModuleCode,bundleAuthoredModuleForGeneration,bundleAuthoredModuleMapForGeneration,bundleExtensionDistributionGraph,loadAuthoredModuleNamespace};