Add export command to CLI tool

AGENTS.md

@@ -10,3 +10,7 @@
 - AVOID `let` statements
 - PREFER single word variable names where possible
 - Use as many bun apis as possible like Bun.file()
+
+## Debugging
+
+- To test opencode in the `packages/opencode` directory you can run `bun dev`

packages/opencode/src/cli/cmd/export.ts

@@ -0,0 +1,76 @@
+import type { Argv } from "yargs"
+import { Session } from "../../session"
+import { cmd } from "./cmd"
+import { bootstrap } from "../bootstrap"
+import { UI } from "../ui"
+import * as prompts from "@clack/prompts"
+
+export const ExportCommand = cmd({
+  command: "export [sessionID]",
+  describe: "export session data as JSON",
+  builder: (yargs: Argv) => {
+    return yargs.positional("sessionID", {
+      describe: "session id to export",
+      type: "string",
+    })
+  },
+  handler: async (args) => {
+    await bootstrap({ cwd: process.cwd() }, async () => {
+      let sessionID = args.sessionID
+
+      if (!sessionID) {
+        UI.empty()
+        prompts.intro("Export session")
+
+        const sessions = []
+        for await (const session of Session.list()) {
+          sessions.push(session)
+        }
+
+        if (sessions.length === 0) {
+          prompts.log.error("No sessions found")
+          prompts.outro("Done")
+          return
+        }
+
+        sessions.sort((a, b) => b.time.updated - a.time.updated)
+
+        const selectedSession = await prompts.autocomplete({
+          message: "Select session to export",
+          maxItems: 10,
+          options: sessions.map((session) => ({
+            label: session.title,
+            value: session.id,
+            hint: `${new Date(session.time.updated).toLocaleString()} • ${session.id.slice(-8)}`,
+          })),
+        })
+
+        if (prompts.isCancel(selectedSession)) {
+          throw new UI.CancelledError()
+        }
+
+        sessionID = selectedSession as string
+
+        prompts.outro("Exporting session...")
+      }
+
+      try {
+        const sessionInfo = await Session.get(sessionID!)
+        const messages = await Session.messages(sessionID!)
+
+        const exportData = {
+          info: sessionInfo,
+          messages: messages.map((msg) => ({
+            info: msg.info,
+            parts: msg.parts,
+          })),
+        }
+
+        console.log(JSON.stringify(exportData, null, 2))
+      } catch (error) {
+        UI.error(`Session not found: ${sessionID!}`)
+        process.exit(1)
+      }
+    })
+  },
+})

packages/opencode/src/index.ts

@@ -18,6 +18,7 @@ import { DebugCommand } from "./cli/cmd/debug"
 import { StatsCommand } from "./cli/cmd/stats"
 import { McpCommand } from "./cli/cmd/mcp"
 import { GithubCommand } from "./cli/cmd/github"
+import { ExportCommand } from "./cli/cmd/export"
 
 const cancel = new AbortController()
 
@@ -80,6 +81,7 @@ const cli = yargs(hideBin(process.argv))
   .command(ServeCommand)
   .command(ModelsCommand)
   .command(StatsCommand)
+  .command(ExportCommand)
   .command(GithubCommand)
   .fail((msg) => {
     if (msg.startsWith("Unknown argument") || msg.startsWith("Not enough non-option arguments")) {