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flutter/packages/flutter_tools/doc/attach.md
Pierre-Louis 4a65a76279
Reland: Update link branches to main (#146882) 
Reland https://github.com/flutter/flutter/pull/146558, reverted in https://github.com/flutter/flutter/pull/146880 due to an outdated test result

## Original description

- Update CS and googlesource.com link branches
- Update GitHub /blob/ and /tree/ links

Tested links manually and fixes a few broken or deprecated links

Added a test that validates that `master` isn't used, except for specified repos.

Part of https://github.com/flutter/flutter/issues/121564
2024-04-17 13:16:33 +00:00

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Flutter Attach

Overview

A Flutter-command that attaches to applications that have been launched without flutter run and provides a HotRunner (enabling hot reload/restart).

Usage

There are three ways for the attach command to discover a running app:

  1. If the platform is Fuchsia the module name must be provided, e.g. $ flutter attach --module=mod_name. This can be called either before or after the application is started, attach will poll the device if it cannot immediately discover the port
  2. On Android and iOS, just running flutter attach suffices. Flutter tools will search for an already running Flutter app or module if available. Otherwise, the tool will wait for the next Flutter app or module to launch before attaching.
  3. If the app or module is already running and the specific VM Service port is known, it can be explicitly provided to attach via the command-line, e.g. $ flutter attach --debug-port 12345

Source

See the source for the attach command.