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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{mkdir,readFile,writeFile}from"node:fs/promises";import{dirname,relative}from"node:path";import{normalizeEsmImportSpecifier}from"#internal/application/import-specifier.js";import{applyWorkflowTransform}from"#internal/workflow-bundle/workflow-builders.js";async function writeNitroStepEntrypoint(e){let t=[...e.discoveredEntries.discoveredSteps].sort(),n=new Set(t),r=[...e.discoveredEntries.discoveredSerdeFiles].sort().filter(e=>!n.has(e)),i=await collectNitroStepManifest({projectRoot:e.projectRoot,stepFiles:t,serdeOnlyFiles:r,workingDir:e.workingDir}),a=dirname(e.outfile),o=[`// Generated by eve. Do not edit by hand.`,...createEntrypointImportLines({builtinsImportSpecifier:e.builtinsPath===void 0?`workflow/internal/builtins`:createFileImportSpecifier({outfileDirectory:a,preferAbsoluteFileImports:e.preferAbsoluteFileImports??!1,targetPath:e.builtinsPath}),outfileDirectory:a,preferAbsoluteFileImports:e.preferAbsoluteFileImports??!1,serdeOnlyFiles:r,sideEffectFiles:e.sideEffectFiles,stepFiles:t}),`export const __steps_registered = true;`,``].join(` `);return await mkdir(a,{recursive:!0}),await readTextFileIfPresent(e.outfile)!==o&&await writeFile(e.outfile,o),i}function createEntrypointImportLines(e){return[e.builtinsImportSpecifier,...e.sideEffectFiles.map(t=>createFileImportSpecifier({outfileDirectory:e.outfileDirectory,preferAbsoluteFileImports:e.preferAbsoluteFileImports,targetPath:t})),...e.stepFiles.map(t=>createFileImportSpecifier({outfileDirectory:e.outfileDirectory,preferAbsoluteFileImports:e.preferAbsoluteFileImports,targetPath:t})),...e.serdeOnlyFiles.map(t=>createFileImportSpecifier({outfileDirectory:e.outfileDirectory,preferAbsoluteFileImports:e.preferAbsoluteFileImports,targetPath:t}))].map(e=>`import ${JSON.stringify(e)};`)}function createFileImportSpecifier(e){return e.preferAbsoluteFileImports?normalizeEsmImportSpecifier(e.targetPath):createRelativeImportSpecifier(e.outfileDirectory,e.targetPath)}async function collectNitroStepManifest(e){let t={},n=[...e.stepFiles,...e.serdeOnlyFiles];for(let r of n){let n=await readFile(r,`utf8`),i=createManifestRelativeFilepath(e.workingDir,r);mergeWorkflowManifest(t,(await applyWorkflowTransform(i,n,`step`,r,e.projectRoot)).workflowManifest)}return t}function mergeWorkflowManifest(e,t){e.steps=mergeWorkflowManifestSection(e.steps,t.steps),e.workflows=mergeWorkflowManifestSection(e.workflows,t.workflows),e.classes=mergeWorkflowManifestSection(e.classes,t.classes)}function mergeWorkflowManifestSection(e,t){if(t===void 0)return e;let n={...e};for(let[e,r]of Object.entries(t))n[e]={...n[e],...r};return n}function createManifestRelativeFilepath(e,t){let n=t.replaceAll(`\\`,`/`),r=e.replaceAll(`\\`,`/`),i=relative(r,n).replaceAll(`\\`,`/`);return i.startsWith(`../`)&&(i=i.split(`/`).filter(e=>e!==`..`).join(`/`)),i}function createRelativeImportSpecifier(e,t){let n=relative(e,t).replaceAll(`\\`,`/`);return n.startsWith(`.`)?n:`./${n}`}async function readTextFileIfPresent(e){try{return await readFile(e,`utf8`)}catch(e){if(e instanceof Error&&`code`in e&&e.code===`ENOENT`)return null;throw e}}export{writeNitroStepEntrypoint};