命令行选项就是你在敲run cts --plan UI命令时可以再跟一个参数，比如在debug配置参数时加入--help看一下效果。   所以这里面定义的类一般是可以在命令行上加参数的形更改的。先来看一下里面有哪些参数 # 接口 ~~~ /* * Copyright (C) 2011 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.tradefed.command; /** * Container for execution options for commands. */ public interface ICommandOptions { public boolean isNeedPrepare(); public void setNeedPrepare(boolean needPrepare); public boolean isNeedTearDown(); public void setNeedTearDown(boolean needTearDown); /** * Returns <code>true</code> if abbreviated help mode has been requested */ public boolean isHelpMode(); /** * Returns <code>true</code> if full detailed help mode has been requested */ public boolean isFullHelpMode(); /** * Return <code>true</code> if we should <emph>skip</emph> adding this command to the queue. */ public boolean isDryRunMode(); /** * Return <code>true</code> if we should print the command out to the console before we * <emph>skip</emph> adding it to the queue. */ public boolean isNoisyDryRunMode(); /** * Return the loop mode for the config. */ public boolean isLoopMode(); /** * Get the min loop time for the config. */ public long getMinLoopTime(); /** * Sets the loop mode for the command * * @param loopMode */ public void setLoopMode(boolean loopMode); /** * Creates a copy of the {@link ICommandOptions} object. * @return */ public ICommandOptions clone(); /** * Return true if command should run on all devices. */ public boolean runOnAllDevices(); } ~~~ # 实现类 ~~~ /* * Copyright (C) 2011 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.tradefed.command; import com.android.tradefed.config.ConfigurationException; import com.android.tradefed.config.Option; import com.android.tradefed.config.Option.Importance; import com.android.tradefed.config.OptionCopier; import com.android.tradefed.log.LogUtil.CLog; /** * Implementation of {@link ICommandOptions}. */ public class CommandOptions implements ICommandOptions { @Option(name = "help", description = "display the help text for the most important/critical options.", importance = Importance.ALWAYS) private boolean mHelpMode = false; @Option(name = "help-all", description = "display the full help text for all options.", importance = Importance.ALWAYS) private boolean mFullHelpMode = false; @Option(name = "dry-run", description = "build but don't actually run the command. Intended as a quick check " + "to ensure that a command is runnable.", importance = Importance.ALWAYS) private boolean mDryRunMode = false; @Option(name = "noisy-dry-run", description = "build but don't actually run the command. This version prints the " + "command to the console. Intended for cmdfile debugging.", importance = Importance.ALWAYS) private boolean mNoisyDryRunMode = false; @Option(name = "min-loop-time", description = "the minimum invocation time in ms when in loop mode.") private long mMinLoopTime = 10 * 60 * 1000; @Option(name = "loop", description = "keep running continuously.") private boolean mLoopMode = true; @Option(name = "all-devices", description = "fork this command to run on all connected devices.") private boolean mAllDevices = true; @Option(name = "need-prepare", description = "is needed to prepare device") private boolean mNeedPrepare = true; // @Option(name = "need-flash", description = "is needed to fastboot device") // private boolean mNeedFlash = true; @Option(name = "need-tearDown", description = "is needed to clean device") private boolean mNeedTearDown = true; public boolean isNeedPrepare() { return mNeedPrepare; } public void setNeedPrepare(boolean needPrepare) { mNeedPrepare = needPrepare; } public boolean isNeedTearDown() { return mNeedTearDown; } public void setNeedTearDown(boolean needTearDown) { mNeedTearDown = needTearDown; } /** * Set the help mode for the config. * <p/> * Exposed for testing. */ void setHelpMode(boolean helpMode) { mHelpMode = helpMode; } /** * {@inheritDoc} */ @Override public boolean isHelpMode() { return mHelpMode; } /** * {@inheritDoc} */ @Override public boolean isFullHelpMode() { return mFullHelpMode; } /** * Set the dry run mode for the config. * <p/> * Exposed for testing. */ void setDryRunMode(boolean dryRunMode) { mDryRunMode = dryRunMode; } /** * {@inheritDoc} */ @Override public boolean isDryRunMode() { return mDryRunMode || mNoisyDryRunMode; } /** * {@inheritDoc} */ @Override public boolean isNoisyDryRunMode() { return mNoisyDryRunMode; } /** * Set the loop mode for the config. */ @Override public void setLoopMode(boolean loopMode) { mLoopMode = loopMode; } /** * {@inheritDoc} */ @Override public boolean isLoopMode() { return mLoopMode; } /** * Set the min loop time for the config. * <p/> * Exposed for testing. */ void setMinLoopTime(long loopTime) { mMinLoopTime = loopTime; } /** * {@inheritDoc} */ @Override public long getMinLoopTime() { return mMinLoopTime; } @Override public ICommandOptions clone() { CommandOptions clone = new CommandOptions(); try { OptionCopier.copyOptions(this, clone); } catch (ConfigurationException e) { CLog.e("failed to clone command options", e); } return clone; } /** * {@inheritDoc} */ @Override public boolean runOnAllDevices() { return mAllDevices; } } ~~~ 实现类里定义了接口中的方法对应的属性分别是： help就是你要在命令行后的参数，就如文章一开头我添加的--help模式。如果你添加了就等于mHelpMode = true;打印帮助信息，但是只有注解中importance属性的才打印 ~~~ @Option(name = "help", description = "display the help text for the most important/critical options.", importance = Importance.ALWAYS) private boolean mHelpMode = false; ~~~ 和上面一样，但是会打印所有option注解的信息，不管有没有importance选项 ~~~ @Option(name = "help-all", description = "display the full help text for all options.", importance = Importance.ALWAYS) private boolean mFullHelpMode = false; ~~~ 测试命令是否可行。 ~~~ @Option(name = "dry-run", description = "build but don't actually run the command. Intended as a quick check " + "to ensure that a command is runnable.", importance = Importance.ALWAYS) private boolean mDryRunMode = false; @Option(name = "noisy-dry-run", description = "build but don't actually run the command. This version prints the " + "command to the console. Intended for cmdfile debugging.", importance = Importance.ALWAYS) private boolean mNoisyDryRunMode = false; ~~~ 是否循环执行命令以及循环的时间 ~~~ @Option(name = "min-loop-time", description = "the minimum invocation time in ms when in loop mode.") private long mMinLoopTime = 10 * 60 * 1000; @Option(name = "loop", description = "keep running continuously.") private boolean mLoopMode = true; ~~~ 是否全设备测试 ~~~ @Option(name = "all-devices", description = "fork this command to run on all connected devices.") private boolean mAllDevices = true; ~~~ 测试前的准备工作和测试后的还原工作 ~~~ @Option(name = "need-prepare", description = "is needed to prepare device") private boolean mNeedPrepare = true; @Option(name = "need-tearDown", description = "is needed to clean device") private boolean mNeedTearDown = true; ~~~