Adding upstream version 0.0~git20250520.a1d9079+dfsg.

Signed-off-by: Daniel Baumann <daniel@debian.org>

cmd/gomobile/version.go

@@ -0,0 +1,82 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+
+	"golang.org/x/mobile/internal/sdkpath"
+)
+
+var cmdVersion = &command{
+	run:   runVersion,
+	Name:  "version",
+	Usage: "",
+	Short: "print version",
+	Long: `
+Version prints versions of the gomobile binary and tools
+`,
+}
+
+func runVersion(cmd *command) (err error) {
+	// Check this binary matches the version in golang.org/x/mobile/cmd/gomobile
+	// source code in GOPATH. If they don't match, currently there is no
+	// way to reliably identify the revision number this binary was built
+	// against.
+	version, err := func() (string, error) {
+		bin, err := exec.LookPath(os.Args[0])
+		if err != nil {
+			return "", err
+		}
+		bindir := filepath.Dir(bin)
+		cmd := exec.Command("go", "list", "-f", "{{.Stale}}", "golang.org/x/mobile/cmd/gomobile")
+		cmd.Env = append(os.Environ(), "GOBIN="+bindir)
+		out, err := cmd.CombinedOutput()
+		if err != nil {
+			return "", fmt.Errorf("cannot test gomobile binary: %v, %s", err, out)
+		}
+		if strings.TrimSpace(string(out)) != "false" {
+			return "", fmt.Errorf("binary is out of date, re-install it")
+		}
+		return mobileRepoRevision()
+	}()
+	if err != nil {
+		fmt.Printf("gomobile version unknown: %v\n", err)
+		return nil
+	}
+
+	// Supported platforms
+	platforms := "android"
+	if xcodeAvailable() {
+		platforms += "," + strings.Join(applePlatforms, ",")
+	}
+
+	androidapi, _ := sdkpath.AndroidAPIPath(buildAndroidAPI)
+
+	fmt.Printf("gomobile version %s (%s); androidSDK=%s\n", version, platforms, androidapi)
+	return nil
+}
+
+func mobileRepoRevision() (rev string, err error) {
+	b, err := exec.Command("go", "list", "-f", "{{.Dir}}", "golang.org/x/mobile/app").CombinedOutput()
+	if err != nil {
+		return "", fmt.Errorf("mobile repo not found: %v, %s", err, b)
+	}
+
+	repo := filepath.Dir(string(b))
+	if err := os.Chdir(repo); err != nil {
+		return "", fmt.Errorf("mobile repo %q not accessible: %v", repo, err)
+	}
+	revision, err := exec.Command("git", "log", "-n", "1", "--format=format: +%h %cd", "HEAD").CombinedOutput()
+	if err != nil {
+		return "", fmt.Errorf("mobile repo git log failed: %v, %s", err, revision)
+	}
+	return string(bytes.Trim(revision, " \t\r\n")), nil
+}