feat(plugin): add shell.env hook for manipulating environment in tools and shell (#12012)

packages/opencode/src/tool/bash.ts

@@ -16,6 +16,7 @@ import { Shell } from "@/shell/shell"
 
 import { BashArity } from "@/permission/arity"
 import { Truncate } from "./truncation"
+import { Plugin } from "@/plugin"
 
 const MAX_METADATA_LENGTH = 30_000
 const DEFAULT_TIMEOUT = Flag.OPENCODE_EXPERIMENTAL_BASH_DEFAULT_TIMEOUT_MS || 2 * 60 * 1000
@@ -162,11 +163,13 @@ export const BashTool = Tool.define("bash", async () => {
         })
       }
 
+      const shellEnv = await Plugin.trigger("shell.env", { cwd }, { env: {} })
       const proc = spawn(params.command, {
         shell,
         cwd,
         env: {
           ...process.env,
+          ...shellEnv.env,
         },
         stdio: ["ignore", "pipe", "pipe"],
         detached: process.platform !== "win32",