gradle.md

General Gradle Notes

• GOTO Liferay Notes

Gradle comments

• comments in build.gradle are java like

---

Gradle common errors

Execution failed for task ':initBundle'.
> Could not expand ZIP xxxxx

solution: rm -rf xxxxx and re-run the download task

---

“URI has an authority component”

solution: (on windows environment) the three slashes after file: fixed the issue

example: liferay.workspace.bundle.url=file:///C://dev//liferay-dxp-digital-enterprise-7.0-sp3_FOR_IDEA.zip

---

Gradle can't resolve dependencies...

Solution: "version" keyword was missing.

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INIT & random commands help

• gradle init inside project di
• gradle.properties is the default properties file
• def propertyValue = propertyName how to read from build.gradle

task main {
    println "running main task"
}

split

def values = '1182-2'.split('-')
assert values[0] == '1182'
assert values[1] == '2'

---

It is very important to understand the distinction between task configuration and task execution

task eclipsify {
    // Code that goes here is *configuring* the task, and will 
    // get evaluated on *every* build invocation, no matter
    // which tasks Gradle eventually decides to execute.
    // Don't do anything time-consuming here.
    doLast {
        // `doLast` adds a so-called *task action* to the task.
        // The code inside the task action(s) defines the task's behavior.
        // It will only get evaluated if and when Gradle decides to 
        // execute the task.
        exec { commandLine = ["./play1.3.x/play", "eclipsify"] }
    }
}

// Improving on the previous task declaration, let's now use a *task type* 
// (see `type: Exec` below). Task types come with a predefined task action, 
// so it's typically not necessary to add one yourself. Also, many task types 
// predefine task inputs and outputs, which allows Gradle to check if the task 
// is up-to-date. Another advantage of task types is that they allow for 
// better tooling support (e.g. auto-completion of task properties).
task precompile(type: Exec) {
    // Since this task already has a task action, we only
    // need to configure it.
    commandLine = ["./play1.3.x/play", "precompile"] }
}