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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{readFile,writeFile}from"node:fs/promises";import{join}from"node:path";import{resolveEveProjectContext}from"#internal/project-context.js";import{applyEdits,modify,parse}from"#compiled/jsonc-parser/index.js";import{WEB_APP_TEMPLATE_FILES}from"#setup/scaffold/create/web-template.js";function errorMessage(e){return e instanceof Error?e.message:String(e)}function isRegistrySource(e){return typeof e==`string`?!0:typeof e!=`object`||!e||!(`url`in e)?!1:typeof e.url==`string`}function parseRegistries(e,t){if(t===void 0)return{};if(typeof t!=`object`||!t||Array.isArray(t))throw Error(`${e} has an invalid registries field.`);let n={};for(let[r,i]of Object.entries(t)){if(!r.startsWith(`@`)||!isRegistrySource(i))throw Error(`${e} has an invalid registry entry for ${r}.`);n[r]=i}return n}async function readRegistryPackage(e){let t=await resolveEveProjectContext(e),n=join(t.environmentRoot,`package.json`),r;try{r=JSON.parse(await readFile(n,`utf8`))}catch(e){throw Error(`Could not read ${n}: ${errorMessage(e)}`)}if(typeof r!=`object`||!r||Array.isArray(r))throw Error(`${n} must contain a JSON object.`);let i=r;return{path:n,document:i,config:{registries:parseRegistries(n,i.registries)}}}function parseRegistryMapping(e){let t=e.indexOf(`=`),n=t===-1?e:e.slice(0,t),r=t===-1?``:e.slice(t+1);if(!n.startsWith(`@`))throw Error(`Registry namespaces must start with @: ${n}`);if(!r.includes(`{name}`))throw Error(`Pass a registry URL containing {name}, for example ${n}=https://example.com/r/{name}.json.`);return{namespace:n,url:r}}async function assertCanInstallWebChat(e){if((await resolveEveProjectContext(e)).kind!==`standalone`)throw Error(`Web Chat installs a project-level Next.js application and cannot currently be added to a top-level agents/ workspace. Configure a root Next.js app with withEve({ agents }) instead.`)}async function readRegistryConfig(e){return(await readRegistryPackage(e)).config}const JSONC_FORMATTING={insertSpaces:!0,tabSize:2,eol:` `};function setJsoncValue(e,t,n){return applyEdits(e,modify(e,t,n,{formattingOptions:JSONC_FORMATTING}))}function addWebRegistryTsconfig(e,t){let n=[],r=parse(e,n,{allowTrailingComma:!0});if(n.length>0||typeof r!=`object`||!r||Array.isArray(r))throw Error(`Could not add Web Chat because ${t} is not a valid JSON object.`);let i=r,a=JSON.parse(WEB_APP_TEMPLATE_FILES[`tsconfig.json`]),o=i.compilerOptions?.paths?.[`@/*`];if(o!==void 0&&(!Array.isArray(o)||!o.includes(`./*`)))throw Error(`Could not add Web Chat because ${t} already defines @/* without mapping it to ./*.`);let s=e;for(let[e,t]of Object.entries(a.compilerOptions))e!==`paths`&&e!==`plugins`&&i.compilerOptions?.[e]===void 0&&(s=setJsoncValue(s,[`compilerOptions`,e],t));o===void 0&&(s=setJsoncValue(s,[`compilerOptions`,`paths`,`@/*`],[`./*`]));let c=i.compilerOptions?.plugins??[];return c.some(e=>typeof e==`object`&&!!e&&`name`in e&&e.name===`next`)||(s=setJsoncValue(s,[`compilerOptions`,`plugins`],[...c,{name:`next`}])),s=setJsoncValue(s,[`include`],[...new Set([...i.include??[],...a.include])]),s=setJsoncValue(s,[`exclude`],[...new Set([...i.exclude??[],...a.exclude])]),s}async function prepareWebRegistryProject(e){let t=join(e,`tsconfig.json`),n;try{n=await readFile(t,`utf8`)}catch(e){throw Error(`Could not add Web Chat because ${t} could not be read: ${errorMessage(e)}`)}let r=addWebRegistryTsconfig(n,t);r!==n&&await writeFile(t,r,`utf8`)}async function addRegistryMappings(e,t){if(t.length===0)throw Error(`Pass at least one registry to add.`);let n=await readRegistryPackage(e),r=t.map(parseRegistryMapping),i={...n.config.registries},a={added:[],skippedBuiltIn:[],skippedExisting:[]};for(let e of r)e.namespace===`@shadcn`||e.namespace===`@skills`?a.skippedBuiltIn.push(e.namespace):i[e.namespace]===void 0?(i[e.namespace]=e.url,a.added.push(e.namespace)):a.skippedExisting.push(e.namespace);return a.added.length>0&&await writeFile(n.path,`${JSON.stringify({...n.document,registries:i},null,2)}\n`,`utf8`),a}export{addRegistryMappings,addWebRegistryTsconfig,assertCanInstallWebChat,prepareWebRegistryProject,readRegistryConfig};