eve/dist/src/public/sveltekit/dev-server.js

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

import{normalizeOrigin}from"./routing.js";import{mkdir,open,readFile,rm,stat,writeFile}from"node:fs/promises";import{join}from"node:path";import{resolvePackageRoot}from"#internal/application/package.js";import{spawn}from"node:child_process";import{readDevelopmentRuntimeArtifactsRevision}from"#services/dev-client/runtime-artifacts.js";const EVE_BASE_URL_ENV=`EVE_BASE_URL`,DEFAULT_SERVER_READY_TIMEOUT_MS=3e4,DEV_SERVER_REGISTRY_TIMEOUT_MS=3e4,LOCAL_SERVER_URL_PATTERN=/https?:\/\/(?:\[[^\]\s]+\]|[^\s/:[\]]+)(?::\d+)?/;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),`sveltekit-dev-server.json`)}function resolveEveDevServerLockPath(e){return join(resolveEveCacheDirectory(e),`sveltekit-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 readUsableEveDevServerRegistry(e){try{let t=normalizeDevServerRegistry(JSON.parse(await readFile(resolveEveDevServerRegistryPath(e),`utf8`)));return t===void 0||t.appRoot!==e||await readDevelopmentRuntimeArtifactsRevision({serverUrl:t.origin,timeoutMs:1e3})===void 0?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),`${JSON.stringify({appRoot:e,origin:t.origin,pid:t.process?.pid??null,updatedAt:new Date().toISOString()},null,2)}\n`)}async function removeStaleEveDevServerLock(e){try{let t=await stat(e);Date.now()-t.mtimeMs>3e4&&await rm(e,{force:!0})}catch(e){if(!isNodeErrorWithCode(e,`ENOENT`))throw e}}async function acquireEveDevServerLock(e){let t=resolveEveCacheDirectory(e),n=resolveEveDevServerLockPath(e),r=Date.now()+DEV_SERVER_REGISTRY_TIMEOUT_MS;for(await mkdir(t,{recursive:!0});;)try{let e=await open(n,`wx`);return await e.writeFile(`${String(process.pid)}\n`),await e.close(),async()=>{await rm(n,{force:!0})}}catch(t){if(!isNodeErrorWithCode(t,`EEXIST`))throw t;if(await readUsableEveDevServerRegistry(e)!==void 0)return async()=>{};if(await removeStaleEveDevServerLock(n),Date.now()>r)throw Error(`Timed out after ${DEV_SERVER_REGISTRY_TIMEOUT_MS}ms waiting for another SvelteKit process to start eve.`);await delay(100)}}function createEveBinaryPath(){return join(resolvePackageRoot(),`bin`,`eve.js`)}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=setTimeout(()=>{r.kill(),n(Error(`Timed out after ${DEFAULT_SERVER_READY_TIMEOUT_MS}ms waiting for eve to print its server URL.`))},DEFAULT_SERVER_READY_TIMEOUT_MS),cleanup=()=>{clearTimeout(i),r.off(`error`,handleError),r.off(`exit`,handleEarlyExit)},handleError=e=>{cleanup(),n(e)},handleEarlyExit=(e,t)=>{cleanup(),n(Error(`eve server process exited before printing its server URL (code ${String(e)}, signal ${String(t)}).`))},a=!1,handleOutput=e=>{if(a)return;let n=LOCAL_SERVER_URL_PATTERN.exec(e.toString(`utf8`));n!==null&&(a=!0,cleanup(),t({origin:normalizeOrigin(n[0]),process:r}))};r.once(`error`,handleError),r.once(`exit`,handleEarlyExit),r.stdout.on(`data`,e=>{process.stdout.write(e),handleOutput(e)}),r.stderr.on(`data`,e=>{process.stderr.write(e),handleOutput(e)})})}function installProcessShutdown(e){let t=e.process;if(t===void 0)return e;let close=()=>{process.off(`beforeExit`,close),process.off(`exit`,close),t.killed||t.kill()};return process.once(`beforeExit`,close),process.once(`exit`,close),e}function startEveDevServer(e){return startServerProcess({args:[createEveBinaryPath(),`dev`,`--no-ui`,`--port`,`0`],command:process.execPath,cwd:e}).then(e=>(process.env[EVE_BASE_URL_ENV]=e.origin,installProcessShutdown(e)))}async function resolveSharedEveDevServer(e){let t=await readUsableEveDevServerRegistry(e);if(t!==void 0)return process.env[EVE_BASE_URL_ENV]=t,{origin:t};let n=await acquireEveDevServerLock(e);try{let t=await readUsableEveDevServerRegistry(e);if(t!==void 0)return process.env[EVE_BASE_URL_ENV]=t,{origin:t};let n=await startEveDevServer(e);return await writeEveDevServerRegistry(e,n),n}finally{await n()}}export{EVE_BASE_URL_ENV,normalizeDevServerRegistry,resolveSharedEveDevServer};