Java 如何从命令行运行单个 gradle 任务
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How to run a single gradle task from command line
提问by Tomin
In my project I have several tasks in my build.gradle. I want those tasks to be independent while running. ie I need to run a single task from command line. But the command "gradle taskA" will run both taskA and taskB which I do not want. How to prevent a task being running?.
在我的项目中，我的 build.gradle 中有几个任务。我希望这些任务在运行时是独立的。即我需要从命令行运行单个任务。但是命令“gradle taskA”将同时运行我不想要的 taskA 和 taskB。如何防止任务正在运行？
Here's a sample of what I am doing.
这是我正在做的示例。
task runsSQL{
description 'run sql queries'
apply plugin: 'java'
apply plugin: 'groovy'
print 'Run SQL' }
task runSchema{
apply plugin: 'java'
apply plugin: 'groovy'
print 'Run Schema' }
Here's the output I'm getting.
这是我得到的输出。
采纳答案by Opal
You can use -xoption or --exclude-taskswitch to exclude task from task graph. But it's good idea to provide runnable example.
您可以使用-xoption 或--exclude-taskswitch 从任务图中排除任务。但是提供可运行的示例是个好主意。
回答by TobiSH
I guess the point that you missed is that you dont define tasks here but you configured tasks. Have a look at the gradle documentation: http://www.gradle.org/docs/current/userguide/more_about_tasks.html.
我想你错过的一点是你没有在这里定义任务，而是配置了任务。查看 gradle 文档：http: //www.gradle.org/docs/current/userguide/more_about_tasks.html。
What you wanted is something like this:
你想要的是这样的：
task runsSQL (dependsOn: 'runSchema'){
description 'run sql queries'
println 'Configuring SQL-Task'
doLast() {
println "Executing SQL"
}
}
task runSchema << {
println 'Creating schema'
}
Please mind the shortcut '<<' for 'doLast'. The doLast step is only executed when a task is executed while the configuration of a task will be executed when the gradle file is parsed.
请注意“doLast”的快捷方式“<<”。doLast 步骤仅在任务执行时执行，而任务的配置将在解析 gradle 文件时执行。
When you call
你打电话时
gradle runSchema
You'll see the 'Configuring SQL-Task'and afterwards the 'Creating schema'output. That means the runSQLTask will be configured but not executed.
您将看到“配置 SQL 任务”，然后是“创建模式”输出。这意味着 runSQLTask 将被配置但不执行。
If you call
如果你打电话
gradle runSQL
Than you you'll see:
比你会看到：
Configuring SQL-Task :runSchema Creating schema :runsSQL Executing SQL
配置 SQL 任务 :runSchema 创建模式 :runsSQL 执行 SQL
runSchema is executed because runSQL depends on it.
runSchema 的执行是因为 runSQL 依赖于它。
