eve/dist/src/public/next/server.js

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

import{EVE_ROUTE_PREFIX}from"#protocol/routes.js";import{resolvePackageRoot}from"#internal/application/package.js";import{existsSync}from"node:fs";import{join}from"node:path";import{mkdir,open,readFile,rm,stat,writeFile}from"node:fs/promises";import{spawn}from"node:child_process";const DEFAULT_SERVER_READY_TIMEOUT_MS=18e4,ANSI_ESCAPE_PATTERN=RegExp(`\x1B\\[[0-?]*[ -/]*[@-~]`,`g`),SERVER_URL_CANDIDATE_PATTERN=/https?:\/\/[^\s"'<>]+/g,globalStateSymbol=Symbol.for(`eve.next.state`);function getGlobalState(){let e=globalThis;return e[globalStateSymbol]??={servers:new Map},e[globalStateSymbol]}function joinRoutePrefix(e,t){return`${e.replace(/\/+$/,``)}/${t.replace(/^\/+/,``)}`}function normalizeOrigin(e){return new URL(e).origin}function readEveBaseUrlEnvironment(){let e=process.env.EVE_BASE_URL;if(!(e===void 0||e.trim().length===0))return normalizeOrigin(e)}function isNodeErrorWithCode(e,t){return e instanceof Error&&`code`in e&&e.code===t}function delay(e){return new Promise(t=>setTimeout(t,e))}function isRecord(e){return typeof e==`object`&&!!e&&!Array.isArray(e)}function resolveEveCacheDirectory(e){return join(e,`.eve`)}function resolveEveDevServerRegistryPath(e){return join(resolveEveCacheDirectory(e),`next-dev-server.json`)}function resolveEveDevServerLockPath(e){return join(resolveEveCacheDirectory(e),`next-dev-server.lock`)}function normalizeDevServerRegistry(e){if(isRecord(e)&&!(typeof e.appRoot!=`string`||typeof e.origin!=`string`||typeof e.updatedAt!=`string`)&&!(e.pid!==null&&typeof e.pid!=`number`))try{return{appRoot:e.appRoot,origin:normalizeOrigin(e.origin),pid:e.pid,updatedAt:e.updatedAt}}catch{return}}async function isEveServerHealthy(t){let n=new AbortController,r=setTimeout(()=>{n.abort()},1e3);try{return(await fetch(joinRoutePrefix(t,`${EVE_ROUTE_PREFIX}/health`),{signal:n.signal})).ok}catch{return!1}finally{clearTimeout(r)}}async function readUsableEveDevServerRegistry(e){try{let t=normalizeDevServerRegistry(JSON.parse(await readFile(resolveEveDevServerRegistryPath(e),`utf8`)));return t===void 0||t.appRoot!==e||!await isEveServerHealthy(t.origin)?void 0:t.origin}catch(e){if(isNodeErrorWithCode(e,`ENOENT`))return;throw e}}async function writeEveDevServerRegistry(e,t){await mkdir(resolveEveCacheDirectory(e),{recursive:!0}),await writeFile(resolveEveDevServerRegistryPath(e),`${JSON.stringify({appRoot:e,origin:t.origin,pid:t.process?.pid??null,updatedAt:new Date().toISOString()},null,2)}\n`)}async function removeStaleEveDevServerLock(e){try{let t=await stat(e);Date.now()-t.mtimeMs>3e4&&await rm(e,{force:!0})}catch(e){if(!isNodeErrorWithCode(e,`ENOENT`))throw e}}async function acquireEveDevServerLock(e,t){let n=resolveEveCacheDirectory(e),r=resolveEveDevServerLockPath(e),o=Date.now()+t;for(await mkdir(n,{recursive:!0});;)try{let e=await open(r,`wx`);return await e.writeFile(`${String(process.pid)}\n`),await e.close(),async()=>{await rm(r,{force:!0})}}catch(n){if(!isNodeErrorWithCode(n,`EEXIST`))throw n;if(await readUsableEveDevServerRegistry(e)!==void 0)return async()=>{};if(await removeStaleEveDevServerLock(r),Date.now()>o)throw Error(`Timed out after ${t}ms waiting for another Next.js process to start eve.`);await delay(100)}}function createEveBinaryPath(){return join(resolvePackageRoot(),`bin`,`eve.js`)}function isLoopbackHostname(e){return e===`localhost`||e===`::1`||e===`[::1]`||/^127(?:\.\d{1,3}){3}$/.test(e)}function parseLocalServerOrigin(e){let t=URL.parse(e);if(!(t===null||t.protocol!==`http:`&&t.protocol!==`https:`||!isLoopbackHostname(t.hostname)||t.port.length===0))return t.origin}function findLocalServerOrigin(e){for(let t of e.matchAll(SERVER_URL_CANDIDATE_PATTERN)){let e=t[0],n=parseLocalServerOrigin(e);if(n!==void 0)return n}}function formatEveDevOutputLine(e,t){let n=e.replace(/\r$/,``),r=n.replace(ANSI_ESCAPE_PATTERN,``).trim();if(r.length===0||/^☰eve\b/.test(r)||r===`CONFIGURATION_FIELD_CONFLICT`||r.startsWith(`[CONFIGURATION_FIELD_CONFLICT]`))return;let i=t===void 0?`[eve:dev]`:`[eve:dev:${t}]`,a=/server listening at\s+(https?:\/\/[^\s]+)/i.exec(n);return a===null?`${i} ${n}`:`${i} server listening at ${a[1]}`}function createEveDevOutputWriter(e){let t=``,writeLine=t=>{let n=formatEveDevOutputLine(t,e.logLabel);n!==void 0&&e.stream.write(`${n}\n`)};return{flush(){t.length!==0&&(writeLine(t),t=``)},write(e){t+=e.toString(`utf8`);let n=t.split(`
`);t=n.pop()??``;for(let e of n)writeLine(e)}}}function startServerProcess(e){return new Promise((t,n)=>{let r=spawn(e.command,e.args,{cwd:e.cwd,env:{...process.env,...e.env},stdio:[`ignore`,`pipe`,`pipe`]}),i=createEveDevOutputWriter({logLabel:e.logLabel,stream:process.stderr}),a=createEveDevOutputWriter({logLabel:e.logLabel,stream:process.stdout}),o=setTimeout(()=>{r.kill(),n(Error(`Timed out after ${e.timeoutMs??DEFAULT_SERVER_READY_TIMEOUT_MS}ms waiting for eve to print its server URL.`))},e.timeoutMs??DEFAULT_SERVER_READY_TIMEOUT_MS),cleanup=()=>{clearTimeout(o),r.off(`error`,handleError),r.off(`exit`,handleEarlyExit)},flushOutput=()=>{a.flush(),i.flush()},handleError=e=>{flushOutput(),cleanup(),n(e)},handleEarlyExit=(e,t)=>{flushOutput(),cleanup(),n(Error(`eve server process exited before printing its server URL (code ${String(e)}, signal ${String(t)}).`))},handleOutput=e=>{let n=findLocalServerOrigin(e.toString(`utf8`));n!==void 0&&(cleanup(),t({origin:n,process:r}))};r.once(`error`,handleError),r.once(`exit`,handleEarlyExit),r.stdout.on(`data`,e=>{a.write(e),handleOutput(e)}),r.stderr.on(`data`,e=>{i.write(e),handleOutput(e)})})}function installProcessShutdown(e){let t=e.process;if(t===void 0)return e;let close=()=>{t.killed||t.kill()};return process.once(`beforeExit`,close),process.once(`exit`,close),e}function startEveDevServer(e,t,n){return startServerProcess({args:[createEveBinaryPath(),`dev`,`--no-ui`,`--port`,`0`],command:process.execPath,cwd:e,logLabel:n,timeoutMs:t}).then(e=>installProcessShutdown(e))}function startEveProductionServer(e){let t=new URL(e.origin),i=t.port,a=join(e.appRoot,`.output`,`server`,`index.mjs`);if(existsSync(a))return startServerProcess({args:[a],command:process.execPath,cwd:e.appRoot,env:{HOST:t.hostname,NITRO_HOST:t.hostname,NITRO_PORT:i,PORT:i}}).then(installProcessShutdown)}async function resolveSharedEveDevServer(e,t,n){let r=await readUsableEveDevServerRegistry(e);if(r!==void 0)return{origin:r};let i=await acquireEveDevServerLock(e,t);try{let r=await readUsableEveDevServerRegistry(e);if(r!==void 0)return{origin:r};let i=await startEveDevServer(e,t,n);return await writeEveDevServerRegistry(e,i),i}finally{await i()}}async function resolveEveDestinationPrefix(e){let t=getGlobalState();if(process.env.NODE_ENV===`production`){if(e.phase===`phase-production-build`)return e.productionDestinationPrefix;let n=`production:${e.appRoot}`,r=t.servers.get(n);return r===void 0&&(r=process.env.VERCEL||e.productionServerOrigin===void 0?void 0:startEveProductionServer({appRoot:e.appRoot,origin:e.productionServerOrigin}),r!==void 0&&(r=r.catch(e=>{throw t.servers.delete(n),e}),t.servers.set(n,r))),r===void 0?e.productionDestinationPrefix:(await r).origin}let n=readEveBaseUrlEnvironment();if(n!==void 0)return n;if(process.env.NODE_ENV!==`development`)return e.productionDestinationPrefix;let r=`dev:${e.appRoot}`,i=t.servers.get(r);return i===void 0&&(i=resolveSharedEveDevServer(e.appRoot,e.devServerTimeoutMs??18e4,e.logLabel).catch(e=>{throw t.servers.delete(r),e}),t.servers.set(r,i)),(await i).origin}export{resolveEveDestinationPrefix};