com.freeletics.gradle.monorepo.tasks.ComputeGitShaTask.kt Maven / Gradle / Ivy

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A set of reusable Gradle plugins

There is a newer version: 0.20.0

package com.freeletics.gradle.monorepo.tasks

import com.android.build.api.variant.BuildConfigField
import com.freeletics.gradle.monorepo.util.RealGit
import com.freeletics.gradle.monorepo.util.computeInfoFromGit
import java.io.File
import org.gradle.api.DefaultTask
import org.gradle.api.Project
import org.gradle.api.file.RegularFileProperty
import org.gradle.api.provider.Property
import org.gradle.api.provider.Provider
import org.gradle.api.tasks.Input
import org.gradle.api.tasks.OutputFile
import org.gradle.api.tasks.TaskAction
import org.gradle.api.tasks.TaskProvider

public abstract class ComputeGitShaTask : DefaultTask() {
    @get:Input
    public abstract val computeFromGit: Property

    @get:Input
    public abstract val gitRootDirectory: Property

    @get:OutputFile
    public abstract val outputFile: RegularFileProperty

    @TaskAction
    public fun action() {
        val gitSha = if (computeFromGit.get()) {
            val git = RealGit(gitRootDirectory.get())
            git.commitSha()
        } else {
            "sha-not-computed"
        }
        outputFile.get().asFile.writeText(gitSha)
    }

    internal companion object {
        fun Project.registerComputeGitShaTask(): TaskProvider {
            return tasks.register("computeGitSha", ComputeGitShaTask::class.java) { task ->
                task.computeFromGit.set(computeInfoFromGit)
                task.gitRootDirectory.set(rootDir)
                task.outputFile.set(layout.buildDirectory.file("intermediates/git/sha.txt"))
            }
        }

        fun TaskProvider.mapOutput(): Provider> {
            return flatMap { task ->
                task.outputFile.map {
                    BuildConfigField(
                        type = "String",
                        value = "\"${it.asFile.readText()}\"",
                        comment = null,
                    )
                }
            }
        }
    }
}