Is there a way to automate the Android SDK installation?

UPDATE

The latest versions introduce sdkmanager, a command line tool that allows you to view, install, update, and uninstall packages for the Android SDK.

The sdkmanager tool is provided in the Android SDK Tools package (25.2.3 and higher) and is located in android_sdk/tools/bin/.

  sdkmanager [--uninstall] [<common args>] [--package_file <file>] [<packages>...]
  sdkmanager --update [<common args>]
  sdkmanager --list [<common args>]
  sdkmanager --licenses [<common args>]

In its first form, installs, or uninstalls, or updates packages.
    By default, the listed packages are installed or (if already installed)
    updated to the latest version.

    --uninstall: uninstalled listed packages.

    <package> is a sdk-style path (e.g. "build-tools;23.0.0" or
             "platforms;android-23").
    <package-file> is a text file where each line is a sdk-style path
                   of a package to install or uninstall.
    Multiple --package_file arguments may be specified in combination
    with explicit paths.

In its second form (with --update), all installed packages are
    updated to the latest version.

In its third form, all installed and available packages are printed
    out.

In its fourth form (with --licenses), show and offer the option to
     accept licenses for all available packages that have not already been
     accepted.

Common Arguments:
    --sdk_root=<sdkRootPath>: Use the specified SDK root instead of the SDK
                              containing this tool

    --channel=<channelId>: Include packages in channels up to <channelId>.
                           Common channels are:
                           0 (Stable), 1 (Beta), 2 (Dev), and 3 (Canary).

    --include_obsolete: With --list, show obsolete packages in the
                        package listing. With --update, update obsolete
                        packages as well as non-obsolete.

    --no_https: Force all connections to use http rather than https.

    --proxy=<http | socks>: Connect via a proxy of the given type.

    --proxy_host=<IP or DNS address>: IP or DNS address of the proxy to use.

    --proxy_port=<port #>: Proxy port to connect to.

* If the env var REPO_OS_OVERRIDE is set to "windows",
  "macosx", or "linux", packages will be downloaded for that OS.

So, to update the packages run

sdkmanager --update

To accept the licenses,

yes | sdkmanager --licenses

OLD ANSWER

(Please note: The android command is deprecated!)

The closer you can get to automation probably is:

android update sdk --no-ui

android provides these options for automatic updates:

Action "update sdk":
  Updates the SDK by suggesting new platforms to install if available.
Options:
  -f --force    Forces replacement of a package or its parts, even if something has been modified
  -u --no-ui    Updates from command-line (does not display the GUI)
  -o --obsolete Installs obsolete packages
  -t --filter   A filter that limits the update to the specified types of packages in the form of
                a comma-separated list of [platform, tool, platform-tool, doc, sample, extra]
  -s --no-https Uses HTTP instead of HTTPS (the default) for downloads
  -n --dry-mode Simulates the update but does not download or install anything

If you want to list which packages are available for installation you can use

android list sdk

And you'll obtain an ordered list of packages, for example

Packages available for installation or update: 9
   1- ARM EABI v7a System Image, Android API 15, revision 2
   2- Intel x86 Atom System Image, Android API 15, revision 1
   3- Android Support, revision 8
   4- Google AdMob Ads SDK, revision 6
   5- Google Analytics SDK, revision 2
   6- Google Play APK Expansion Library, revision 1
   7- Google Play Billing Library, revision 2
   8- Google Play Licensing Library, revision 2
   9- Google Web Driver, revision 2

Also you can limit the update only to a desired component if you use the --filter option

android update sdk --filter <component> --no-ui

where component is one or more of

the numbers returned by android list sdk (i.e. 1, also know as package index)

add-on

doc

extra

platform

platform-tool

sample

source

system-image

tool

Or can be one or more specific identifiers. For instance, if you just want to download a small set of specific packages, you could do this:

android update sdk -u --filter platform-tools,android-16,extra-android-support

And you'll just get the platform tools, API level 16 and support package JAR files. This is really handy if you're building a build machine only and would have to pay for downloading all the extra stuff that you'll never use.

To see the available options you can use --help, for example

android --help list sdk

       Usage:
       android [global options] list sdk [action options]
       Global options:
  -h --help       : Help on a specific command.
  -v --verbose    : Verbose mode, shows errors, warnings and all messages.
     --clear-cache: Clear the SDK Manager repository manifest cache.
  -s --silent     : Silent mode, shows errors only.

                   Action "list sdk":
  Lists remote SDK repository.
Options:
  -o --obsolete  : Deprecated. Please use --all instead.
  -a --all       : Lists all available packages (including obsolete and
                   installed ones)
     --proxy-host: HTTP/HTTPS proxy host (overrides settings if defined)
     --proxy-port: HTTP/HTTPS proxy port (overrides settings if defined)
  -s --no-https  : Uses HTTP instead of HTTPS (the default) for downloads.
  -e --extended  : Displays extended details on each package
  -u --no-ui     : Displays list result on console (no GUI) [Default: true]

---

This didn't work for me...

echo "y" | android ....

So I ended up here:

expect -c '
set timeout -1   ;
spawn sudo /opt/android-sdk/tools/android update sdk -u;
expect {
    "Do you accept the license" { exp_send "y\r" ; exp_continue }
    eof
}
'

---

I use this to install and update the SDK on Travis CI:

curl --location http://dl.google.com/android/android-sdk_r22.3-linux.tgz | tar -x -z -C $HOME
export ANDROID_HOME=$HOME/android-sdk-linux
export PATH=$PATH:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools
( sleep 5 && while [ 1 ]; do sleep 1; echo y; done ) | android update sdk --no-ui --filter platform-tool,android-19,sysimg-19,build-tools-19.0.1

---

To answer all licenses with 'y', you can try this in the script:

(while :
do
  echo 'y'
  sleep 2
done) | android update sdk -u .....

---

For anyone still searching for a method to download all Android packages, I have wrote a script to do that. It will download all non-obsoleted packages.

#!/binbash
# Install all non-obsolete Android SDK packages.
# author: Tai Le Tien (letientai299 at gmail.com)

function install_sdk {
  android update sdk -u -s -a -t "$1"
}

function fetch_non_obsoled_package_indices {
  # Fetch the SDK list using non-https connections
  android list sdk -u -s -a |\
    # Filter obsoleted packages
    sed '/\(Obsolete\)/d' |\
    # Filter to take only the index number of package
    sed 's/^[ ]*\([0-9]*\).*/\1/' |\
    # Remove the empty lines
    sed -n 's/^[^ $]/\0/p'
}

for package_index in  $(fetch_non_obsoled_package_indices)
do
  echo "====================================================================="
  echo "Start to install package:  ${package_index}"
  echo "====================================================================="
  # Auto accept license
  echo -e "y" | install_sdk "${package_index}"
  echo
  echo
done

You can also see it on my GitHub repository

The good:

Not depend on expect.

Headless.

The downsides:

You still have to install basic SDK manually, and put android into your path.

The script only works on Unix.

---

In newer Android versions (e.g., 25.2.5) we should use sdkmanager (instead of the android command).

Example of installing a package:

android-sdk/tools/bin/sdkmanager "extras;android;m2repository"

Command to get a list of all available packages:

android-sdk/tools/bin/sdkmanager --verbose --list

This web-page lists download links for the SDK-tools:

Here is a link to an open-source repository docker-android which can install android in a Docker image.

You may also find the answers in this SO question: Automatically accept all SDK licences useful.

---

Starting with Android Plugin for Gradle version 2.2.0, missing SDK components get downloaded automatically.

---

I got frustrated with this as well and built a Gradle plugin named com.quittle.setup-android-sdk that will detect and install what you need. It works on Windows, OS X, and Linux and doesn't require any additional dependencies if you build with Gradle.

If you're interested, you can checkout my documentation on it here: https://github.com/quittle/gradle-setup-android-sdk

---

To automate the sdkmanager.bat --licenses prompt away on Windows (say you're installing via automation for build infrastructure)... Don't run it. Don't waste time trying to figure out how to pipe y into it. I tried; abject fail.

Rather - run it one time, yourself, and take note that it generates files into C:\android\android-sdk\licenses (where you're running C:\android\android-sdk\tools\bin\sdkmanager.bat - your install root may vary).

Take those files, and place them somewhere you can grab them from in your automated setup scripts. Personally, Ansible is my poison, so:

# Note to future-us:
# These are magical files generated by running `c:/android/android-sdk/tools/bin/sdkmanager.bat --licenses`
# This, delightfully, is interactive, and wants to _actually_ read the keyboard buffer.
# That's reputedly possible via SendKeys. I elected to not try that.
# So, instead:
# 1) remote to an instance like a cave-dweller
# 2) run `c:/android/android-sdk/tools/bin/sdkmanager.bat --licenses` in a prompt.
# 3) _actually type_ `y` however many godforsaken times you need to.
# 4) meticulously harvest `c:/android/android-sdk/licenses/*` to this task.
#    (you don't need the newline that they thoughtfully put before the hash in each file).
- name: set up android licenses by hand
  win_lineinfile:
    path: c:/android/android-sdk/licenses/{{ item.name }}
    line: "{{ item.line }}"
    create: true
  with_items:
    - {name: "android-googletv-license", line: "SOME HASH"}
    - {name: "android-sdk-license", line: "SOME OTHER HASH"}
    ...

---

A script to download only needed, non-{obsolete, source, emulator-image, doc} packages:

#!/bin/bash
set -e

# cd into where tools/android can be found
if [[ -d "$ANDROID_HOME" ]]; then
  cd "$ANDROID_HOME"
elif [[ -x "$(dirname "$0")/tools/android" ]]; then
  cd "$(dirname "$0")"
else
  echo "FAILED: Cannot find ANDROID_HOME/tools/android"
  exit 1
fi

android () {
  "$(dirname $0)/tools/android" "$@"
}

needed_packages () {
  android list sdk -u -s -e         \
    | grep '^id:'                   \
    | cut -d'"' -f2                 \
    | grep -v 'source'              \
    | grep -v 'sys-img'             \
    | grep -v 'doc'                 \
    | paste -d, -s -
}

main () {
  (while : ; do
  echo 'y'
  sleep 1
  done) | android update sdk -u -s -a -t "$(needed_packages)"
}

main

Some parts are taken from other answers.

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For a newbie Android developer, but an experienced Java developer, it is really bewildering to know which dependencies, even if you get past all of the nightmares in the previous answers.

A colleague of mine advised me to use Android Studio (which is IntelliJ IDEA based :-) specifically because of the above nightmares.

I followed his advice.

But I did not accept the defaults for the installation, and tried to install it in a software drive of mine. It turned out to be a nightmare. The SDK dialogue seemed to hang and was not intuitive at all. Which is why I ended up here.

After reading the above, I gave Studio another try, and this time it accepted all the defaults for the installation.

Hey PRESTO...it took care of all the SDK dependencies (core ones I am guessing) in a couple of dialogues without being prompted i.e., Ctrl + Shift + S and the SDK.

I would therefore recommend it for a newbie. Here the proof of the pudding as it downloads:

https://i.stack.imgur.com/xyGPT.png

The version of Studio I downloaded and installed:

https://i.stack.imgur.com/UgxFP.png

Version of windows:

https://i.stack.imgur.com/juSiF.png

And here after it did its good stuff:

https://i.stack.imgur.com/KjsFO.png

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