使用fvm管理多个flutter版本

安装独立的dart环境

官方安装方法：https://dart.dev/get-dart

brew tap dart-lang/dart
brew install dart

更新dart版本：

brew upgrade dart

重新安装dart：

brew reinstall dart

查看当前dart版本：

$ dart --version
Dart SDK version: 2.13.1 (stable) (Fri May 21 12:45:36 2021 +0200) on "macos_x64"

查看当前安装的dart信息：

$ brew info dart
dart-lang/dart/dart: stable 2.13.1, HEAD
The Dart SDK
https://dart.dev
Conflicts with:dart-beta (because dart-beta ships the same binaries)
/usr/local/Cellar/dart/2.13.1 (508 files, 477.8MB) *Built from source on 2021-05-31 at 09:44:27
From: https://github.com/dart-lang/homebrew-dart/blob/HEAD/dart.rb
==> Options
--HEADInstall HEAD version
==> Caveats
Please note the path to the Dart SDK:/usr/local/opt/dart/libexec

安装fvm

命令：pub global activate fvm

$ pub global activate fvm
Package fvm is currently active at version 2.0.5.
Resolving dependencies... (3.4s)
The package fvm is already activated at newest available version.
To recompile executables, first run `global decativate fvm`.
Installed executable fvm.
Warning: Pub installs executables into $HOME/.pub-cache/bin, which is not on your path.
You can fix that by adding this to your shell's config file (.bashrc, .bash_profile, etc.):export PATH="$PATH":"$HOME/.pub-cache/bin"Activated fvm 2.0.5.

配置

.bash_profile中添加：

# fvm
export PATH="$PATH":"$HOME/.pub-cache/bin"

使.bash_profile生效：

source ~/.bash_profile

重启命令行工具，执行fvm：

$ fvm
Flutter Version Management: A cli to manage Flutter SDK versions.Usage: fvm <command> [arguments]Global options:
-h, --help       Print this usage information.--verbose    Print verbose output.--version    current versionAvailable commands:config     Set configuration for FVMdart       Proxies Dart Commandsdoctor     Shows information about environment, and project configuration.flavor     Switches between different project flavorsflutter    Proxies Flutter Commandsglobal     Sets Flutter SDK Version as a globalinstall    Installs Flutter SDK Versionlist       Lists installed Flutter SDK Versionsreleases   View all Flutter SDK releases available for install.remove     Removes Flutter SDK Versionspawn      Spawns a command on a Flutter versionuse        Sets Flutter SDK Version you would like to use in a projectRun "fvm help <command>" for more information about a command.

fvm相关命令

fvm官方使用文档

配置fvm缓存路径（可选，默认在用户目录下fvm/versions文件夹）：

fvm config --cache-path <CACHE_PATH>

查看当前安装的flutter版本：

$ fvm listNo SDKs have been installed yet. Flutter. SDKs installed outside of fvm
will not be displayed.

安装指定版本的flutter：

$ fvm install 2.2.1
Flutter "2.2.1" is not installed.Installing version: 2.2.1...
Cloning into '/Users/yuanzhiying/fvm/versions/2.2.1'...

删除指定版本：

$ fvm remove 2.2.0
Removing 2.2.0...
2.2.0 removed.

此时会在用户目录下自动创建fvm/versions/2.2.1文件夹，如果本地已有flutter，可将本地的flutter拷贝到versions目录下，文件夹改为对应的版本名。当前flutter版本可以在flutter根目录下的version文件里查看。

/Users/yuanzhiying/fvm/versions/1.22.6

查看汇漫网已安装的flutter版本：

$ fvm list
Cache Directory:  /Users/yuanzhiying/fvm/versions2.2.0
1.22.6

查看环境信息和项目配置


FVM Version: 2.0.5
___________________________________________________FVM config found:
___________________________________________________Project: info_valley
Directory: /Users/yuanzhiying/mobile_life/info_valley
Version: 1.22.6
Project Flavor: None selected
___________________________________________________Version is currently cached locally.Cache Path: /Users/yuanzhiying/fvm/versions/1.22.6
Channel: false
SDK Version: 1.22.6IDE Links
VSCode: .fvm/flutter_sdk
Android Studio: /Users/yuanzhiying/mobile_life/info_valley/.fvm/flutter_sdkConfigured env paths:
___________________________________________________Flutter:Dart:
/usr/local/Cellar/dart/2.13.1/libexec/bin/dartFVM_HOME:
not set

使用对应版本的flutter：
切换至项目目录，执行命令：

$ cd mobile_life/info_valley
$ fvm use 1.22.6
Project now uses Flutter [1.22.6]
HandshakeException: Connection terminated during handshake

查看当前的使用版本：

$ fvm list
Cache Directory:  /Users/yuanzhiying/fvm/versions2.2.0
1.22.6 (active)

项目目录下会生成一个隐藏文件夹.fvm

配置项目忽略文件.gitignore

.fvm/flutter_sdk

项目配置flutter路径

选择flutter的sdk路径：

自动生成当前使用的flutter路径：

重启Android studio。

flutter命令的使用

此时执行flutter doctor找不到flutter命令：

$ flutter doctor
zsh: command not found: flutter

所有flutter命令前加上fvm即可：

$ fvm flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 1.22.6, on macOS 11.3 20E232 darwin-x64, locale zh-Hans-CN)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 12.5)
[✓] Android Studio (version 4.2)
[!] Connected device! Error: 营的iPhone is not connected. Xcode will continue when 营的iPhone is connected. (code -13)! Doctor found issues in 1 category.

$ fvm flutter pub get
Running "flutter pub get" in info_valley...                         1.4s

flutter下dart命令的使用

所有dart命令前加上fvm即可：

$ fvm dart --version
fvm: running Dart from Flutter "1.22.6"Dart SDK version: 2.10.5 (stable) (Tue Jan 19 13:05:37 2021 +0100) on "macos_x64"

便捷使用命令

在.bash_profile中设置命令的别名：

# aliases 快捷使用fvm命令
alias f="fvm flutter"
alias d="fvm dart"

使生效：

source ~/.bash_profile

重启命令行工具。

$ f pub get
Running "flutter pub get" in info_valley...                         1.0s

$ d --version
Running using Flutter version configured in path.Dart SDK version: 2.13.1 (stable) (Fri May 21 12:45:36 2021 +0200) on "macos_x64"

设置全局默认的flutter版本

$ fvm global 1.22.6
Flutter "1.22.6" has been set as global
However your "flutter" path current points to:.
to use global Flutter SDK through FVM you should change it to:/Users/yuanzhiying/fvm/default/bin

此时fvm目录下自动生成了一个default的快捷文件夹。

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