tui: enable primary clipboard copy for Wayland/X11 to fix Linux middle-click paste

Adds optional config `clipboard.linux.enablePrimaryCopy` to copy to primary clipboard in addition to regular clipboard, enabling middle-click paste on Linux and improving compatibility with environments like VMware Workstation that sync only the primary clipboard.

Author: mickalpine

packages/opencode/src/cli/cmd/tui/util/clipboard.ts

@@ -7,6 +7,7 @@ import path from "path"
 import { Filesystem } from "../../../../util/filesystem"
 import { Process } from "../../../../util/process"
 import { which } from "../../../../util/which"
+import { Config } from "../../../../config/config.js"
 
 /**
  * Writes text to clipboard via OSC 52 escape sequence.
@@ -89,16 +90,31 @@ export namespace Clipboard {
       if (process.env["WAYLAND_DISPLAY"] && which("wl-copy")) {
         console.log("clipboard: using wl-copy")
         return async (text: string) => {
+          const config = await Config.get().catch(() => ({}))
+          const enablePrimary = (config as Config.Info).clipboard?.linux?.enablePrimaryCopy ?? false
           const proc = Process.spawn(["wl-copy"], { stdin: "pipe", stdout: "ignore", stderr: "ignore" })
           if (!proc.stdin) return
           proc.stdin.write(text)
           proc.stdin.end()
           await proc.exited.catch(() => {})
+          if (enablePrimary) {
+            const procPrimary = Process.spawn(["wl-copy", "--primary"], {
+              stdin: "pipe",
+              stdout: "ignore",
+              stderr: "ignore",
+            })
+            if (!procPrimary.stdin) return
+            procPrimary.stdin.write(text)
+            procPrimary.stdin.end()
+            await procPrimary.exited.catch(() => {})
+          }
         }
       }
       if (which("xclip")) {
         console.log("clipboard: using xclip")
         return async (text: string) => {
+          const config = await Config.get().catch(() => ({}))
+          const enablePrimary = (config as Config.Info).clipboard?.linux?.enablePrimaryCopy ?? false
           const proc = Process.spawn(["xclip", "-selection", "clipboard"], {
             stdin: "pipe",
             stdout: "ignore",
@@ -108,11 +124,24 @@ export namespace Clipboard {
           proc.stdin.write(text)
           proc.stdin.end()
           await proc.exited.catch(() => {})
+          if (enablePrimary) {
+            const procPrimary = Process.spawn(["xclip", "-selection", "primary"], {
+              stdin: "pipe",
+              stdout: "ignore",
+              stderr: "ignore",
+            })
+            if (!procPrimary.stdin) return
+            procPrimary.stdin.write(text)
+            procPrimary.stdin.end()
+            await procPrimary.exited.catch(() => {})
+          }
         }
       }
       if (which("xsel")) {
         console.log("clipboard: using xsel")
         return async (text: string) => {
+          const config = await Config.get().catch(() => ({}))
+          const enablePrimary = (config as Config.Info).clipboard?.linux?.enablePrimaryCopy ?? false
           const proc = Process.spawn(["xsel", "--clipboard", "--input"], {
             stdin: "pipe",
             stdout: "ignore",
@@ -122,6 +151,17 @@ export namespace Clipboard {
           proc.stdin.write(text)
           proc.stdin.end()
           await proc.exited.catch(() => {})
+          if (enablePrimary) {
+            const procPrimary = Process.spawn(["xsel", "--primary", "--input"], {
+              stdin: "pipe",
+              stdout: "ignore",
+              stderr: "ignore",
+            })
+            if (!procPrimary.stdin) return
+            procPrimary.stdin.write(text)
+            procPrimary.stdin.end()
+            await procPrimary.exited.catch(() => {})
+          }
         }
       }
     }

packages/opencode/src/config/config.ts

@@ -985,6 +985,20 @@ export namespace Config {
   export const Info = z
     .object({
       $schema: z.string().optional().describe("JSON schema reference for configuration validation"),
+      clipboard: z
+        .object({
+          linux: z
+            .object({
+              enablePrimaryCopy: z
+                .boolean()
+                .optional()
+                .default(false)
+                .describe("Copy to primary clipboard in addition to regular clipboard on Linux (Wayland/X11)"),
+            })
+            .optional(),
+        })
+        .optional()
+        .describe("Clipboard configuration"),
       logLevel: Log.Level.optional().describe("Log level"),
       server: Server.optional().describe("Server configuration for opencode serve and web commands"),
       command: z