eve/dist/src/execution/sandbox/bindings/local-backend-utils.js

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

import{randomUUID}from"node:crypto";import{access,cp,mkdir,rename,rm,utimes}from"node:fs/promises";import{dirname,join}from"node:path";import{resolveSandboxModelPath}from"#shared/skill-paths.js";import{WORKSPACE_ROOT}from"#runtime/workspace/types.js";import{bufferToStream,streamToBuffer}from"#execution/sandbox/stream-utils.js";function createFileBackedInternalSandboxSession(e){return{id:e.id,resolvePath:resolveWorkspacePath,async spawn(t){return await e.sandbox.spawn(t)},async readFile(t){let n=await e.sandbox.readFileBytes(t.path);return n===null?null:bufferToStream(n)},async removePath(t){await e.sandbox.removePath(t)},async writeFile(t){let n=await streamToBuffer(t.content);await e.sandbox.writeFiles([{content:n,path:t.path}])}}}function resolveWorkspacePath(e){return e.startsWith(`/`)?e:`${WORKSPACE_ROOT}/${e}`}async function pathExists(e){try{return await access(e),!0}catch{return!1}}async function copyDirectoryAtomically(e,t){let n=`${t}.${randomUUID()}.tmp`;await rm(n,{force:!0,recursive:!0}),await mkdir(dirname(t),{recursive:!0});try{await cp(e,n,{recursive:!0}),await rename(n,t)}catch(e){if(await rm(n,{force:!0,recursive:!0}).catch(()=>{}),await pathExists(t))return;throw e}}async function touchDirectory(e){let t=new Date;await utimes(e,t,t)}function resolveLocalBackendTemplateRootPath(e,t,n){return join(resolveLocalBackendTemplatesDirectory(e,t),n)}function resolveLocalBackendTemplatesDirectory(e,t){return join(e,t,`templates`)}function resolveLocalBackendSessionRootPath(e,t,n){return join(e,t,`sessions`,n)}async function writeSandboxSeedFiles(e,t){for(let n of t){let t=await resolveSandboxModelPath({path:n.path,sandbox:e});typeof n.content==`string`?await e.writeTextFile({content:n.content,path:t}):await e.writeBinaryFile({content:n.content,path:t})}}export{copyDirectoryAtomically,createFileBackedInternalSandboxSession,pathExists,resolveLocalBackendSessionRootPath,resolveLocalBackendTemplateRootPath,resolveLocalBackendTemplatesDirectory,resolveWorkspacePath,touchDirectory,writeSandboxSeedFiles};