eve
Version:
Filesystem-first framework for durable backend AI agents that run anywhere.
3 lines • 2.7 kB
JavaScript
import{bufferToStream,streamToBuffer}from"./stream-utils.js";function buildSandboxSession(n,r=async()=>{}){async function run(e){let t=await n.spawn(e),[r,i,{exitCode:a}]=await Promise.all([collectStreamToString(t.stdout),collectStreamToString(t.stderr),t.wait()]);return{exitCode:a,stderr:i,stdout:r}}return{id:n.id,resolvePath(e){return n.resolvePath(e)},run,async spawn(e){return await n.spawn(e)},async readFile(e){return await n.readFile({abortSignal:e.abortSignal,path:n.resolvePath(e.path)})},async readBinaryFile(e){let r=await n.readFile({abortSignal:e.abortSignal,path:n.resolvePath(e.path)});return r===null?null:await streamToBuffer(r)},async readTextFile(e){validateReadTextFileOptions(e);let r=await n.readFile({abortSignal:e.abortSignal,path:n.resolvePath(e.path)});return r===null?null:applyLineRange(decodeBytes(await streamToBuffer(r),e.encoding??`utf-8`),e)},async writeFile(e){await n.writeFile({abortSignal:e.abortSignal,content:e.content,path:n.resolvePath(e.path)})},async writeBinaryFile(t){await n.writeFile({abortSignal:t.abortSignal,content:bufferToStream(t.content),path:n.resolvePath(t.path)})},async writeTextFile(t){let r=encodeString(t.content,t.encoding??`utf-8`);await n.writeFile({abortSignal:t.abortSignal,content:bufferToStream(r),path:n.resolvePath(t.path)})},async removePath(e){await n.removePath({abortSignal:e.abortSignal,force:e.force,path:n.resolvePath(e.path),recursive:e.recursive})},setNetworkPolicy:r}}async function collectStreamToString(e){let n=await streamToBuffer(e);return new TextDecoder().decode(n)}function validateReadTextFileOptions(e){let{startLine:t,endLine:n}=e;if(t!==void 0&&(!Number.isInteger(t)||t<1))throw Error(`startLine must be a positive integer (1-based).`);if(n!==void 0&&(!Number.isInteger(n)||n<1))throw Error(`endLine must be a positive integer (1-based).`);if(t!==void 0&&n!==void 0&&t>n)throw Error(`startLine must not be greater than endLine.`)}function splitLinesPreservingEndings(e){let t=[],n=0;for(let r=0;r<e.length;r++)e[r]===`\r`?r+1<e.length&&e[r+1]===`
`?(t.push(e.slice(n,r+2)),n=r+2,r++):(t.push(e.slice(n,r+1)),n=r+1):e[r]===`
`&&(t.push(e.slice(n,r+1)),n=r+1);return n<e.length&&t.push(e.slice(n)),t}function applyLineRange(e,t){if(t.startLine===void 0&&t.endLine===void 0)return e;let n=splitLinesPreservingEndings(e),r=n.length,i=t.startLine??1,a=Math.min(t.endLine??r,r);return i>r?``:n.slice(i-1,a).join(``)}function decodeBytes(e,t){return t===`utf-8`||t===`utf8`?new TextDecoder(`utf-8`,{fatal:!0}).decode(e):Buffer.from(e.buffer,e.byteOffset,e.byteLength).toString(t)}function encodeString(e,t){return t===`utf-8`||t===`utf8`?new TextEncoder().encode(e):Buffer.from(e,t)}export{buildSandboxSession};