从Android开发者网站下载新的cmdline-tools需要遵循以下目录结构。

同样的问题，通过谷歌来的。 根据AndroidStudio Archive，今天是4.1版本的发布日。 我想这不是巧合。

这个完全不相关的指南有一个针对linux的老版本sdk-tools的硬链接。 对于其他操作系统，可以将url更改为windows或mac。我现在就用它来解决问题。

(这应该是一个评论而不是一个解决方案)

简单的解决方案:

打开Android Studio工具菜单， SDK管理器在窗口中出现 上面是内嵌板， 选择SDK工具面板勾选Android SDK命令行工具 选择窗口底部附近的Apply按钮

混合了Jing Li和caller9的回答，这是我的脚本:

variables:
  ANDROID_COMPILE_SDK: "29"
  ANDROID_BUILD_TOOLS: "29.0.3"
  ANDROID_SDK_TOOLS: "6200805"

before_script:
  - apt-get update --yes
  - apt-get install --yes wget tar unzip lib32stdc++6 lib32z1
  - export ANDROID_HOME=${PWD}android-home
  - install -d $ANDROID_HOME
  - wget --output-document=$ANDROID_HOME/cmdline-tools.zip https://dl.google.com/android/repository/commandlinetools-linux-${ANDROID_SDK_TOOLS}_latest.zip
  - pushd $ANDROID_HOME
  - unzip -d cmdline-tools cmdline-tools.zip
  - popd
  - export PATH=$PATH:${ANDROID_HOME}/cmdline-tools/tools/bin/
  - sdkmanager --version
  - set +o pipefail
  - yes | sdkmanager --sdk_root=${ANDROID_HOME} --licenses
  - set -o pipefail
  - sdkmanager --sdk_root=${ANDROID_HOME} "platforms;android-${ANDROID_COMPILE_SDK}"
  - sdkmanager --sdk_root=${ANDROID_HOME} "platform-tools"
  - sdkmanager --sdk_root=${ANDROID_HOME} "build-tools;${ANDROID_BUILD_TOOLS}"
  - export PATH=$PATH:${ANDROID_HOME}/platform-tools/
  - chmod +x ./gradlew
[...]

这里总结了几篇有用的文章，对于想要快速片段的人，例如插入Dockerfile，下面的脚本对我来说很有用:

RUN mkdir -p /opt/android/cmdline-tools/latest \
    && cd /opt/android/cmdline-tools/latest \
    && wget https://dl.google.com/android/repository/commandlinetools-linux-6858069_latest.zip \
    && bsdtar --strip-components=1 -xvf commandlinetools-linux-6858069_latest.zip \
    && yes | bin/sdkmanager --licenses \
    && bin/sdkmanager "build-tools;29.0.2" "platforms;android-29" \
    && rm commandlinetools-linux-6858069_latest.zip

It just requires bsdtar to be installed (it's usually packaged in popular distributions). Android platform/build tools version 29 are installed, and Android sdk root will be then located in /opt/android. While this setup works for me without warnings as it is, I have an issue when reinstalling packages already installed, or possibly installing different version of the packages: it clashes with packages already present and create bogus directories in the sdk root, with -2, -3 suffixes. These directories are then ignored, and warnings like Observed package id 'emulator' in inconsistent location are printed, so this behavior is definitely not desirable. If you have a fix for that please write it in the comments or, if you are confident enough, just edit the script with the exact fix.

我在新Mac上下载独立命令行工具(commandlinetools-mac-6200805_latest)时就遇到了这种情况。

基于这里所有的答案，我能够让它像这样工作

# Define ANDROID_HOME, if not defined already
export ANDROID_HOME="~/Library/Android/sdk"

# Create the folder if missing
mkdir -p $ANDROID_HOME

# Let the tool know that it should use that SDK location. 
sdkmanager --list --sdk_root=$ANDROID_HOME

——sdk_root选项的文档说“使用指定的SDK根而不是包含此工具的SDK”。这让我想到，尽管该工具是独立发布的，但它有望成为SDK安装包的一部分。