fun Project.environmentVariable(propertyName: String) = providers.environmentVariable(propertyName)


fun Project.propertyFromAnySource(propertyName: String) = gradleProperty(propertyName)
    .orElse(systemProperty(propertyName))
    .orElse(environmentVariable(propertyName))


val Project.buildBranch: Provider<String>

        tasks.withType(AbstractCheckOrUpdateContributorsInReleaseNotes.class).configureEach(task -> {
            task.getGithubToken().set(project.getProviders().environmentVariable("GITHUB_TOKEN"));
            task.getReleaseNotes().set(extension.getReleaseNotes().getMarkdownFile());

    }
}

val pgpSigningKey: Provider<String> = providers.environmentVariable("PGP_SIGNING_KEY")
val signArtifacts: Boolean = !pgpSigningKey.orNull.isNullOrEmpty()

tasks.withType<Sign>().configureEach { isEnabled = signArtifacts }

signing {
    useInMemoryPgpKeys(
        project.providers.environmentVariable("PGP_SIGNING_KEY").orNull,
        project.providers.environmentVariable("PGP_SIGNING_KEY_PASSPHRASE").orNull
    )

configurations.archives.get().allArtifacts.removeIf {
    it.name != "plugins"
}

val pgpSigningKey: Provider<String> = providers.environmentVariable("PGP_SIGNING_KEY")
val pgpSigningPassPhrase: Provider<String> = providers.environmentVariable("PGP_SIGNING_KEY_PASSPHRASE")
val signArtifacts: Boolean = !pgpSigningKey.orNull.isNullOrEmpty()

tasks.withType<Sign>().configureEach { isEnabled = signArtifacts }

import okhttp3.buildsupport.testJavaVersion

val platform = project.platform
val testJavaVersion = project.testJavaVersion

tasks.withType<Test> {
  useJUnitPlatform()
  val isCi = providers.environmentVariable("CI")
  val containerTests = providers.gradleProperty("containerTests")
  onlyIf("By default not in CI") {
    !isCi.isPresent
      || (containerTests.isPresent && containerTests.get().toBoolean())
  }

val Project.isBuildCommitDistribution: Boolean
    get() = providers.gradleProperty("buildCommitDistribution").map { it.toBoolean() }.orElse(false).get()


fun Project.isInBuild(vararg buildTypeIds: String) = providers.environmentVariable("BUILD_TYPE_ID").orNull?.let { currentBuildTypeId ->
    buildTypeIds.any { currentBuildTypeId.endsWith(it) }

With this you should have a basic understanding of what **environment variables** are and how to use them in Python.

You can also read more about them in the [Wikipedia for Environment Variable](https://en.wikipedia.org/wiki/Environment_variable).

In many cases it's not very obvious how environment variables would be useful and applicable right away. But they keep showing up in many different scenarios when you are developing, so it's good to know about them.

Vous pouvez également en lire davantage sur la [page Wikipédia dédiée aux variables d'environnement](https://en.wikipedia.org/wiki/Environment_variable).

Buraya kadar **ortam değişkenleri**nin ne olduğuna ve Python’da nasıl kullanılacağına dair temel bir fikir edinmiş olmalısınız.

Ayrıca [Ortam Değişkeni için Wikipedia](https://en.wikipedia.org/wiki/Environment_variable) sayfasından daha fazlasını da okuyabilirsiniz.

Подробнее о них вы также можете прочитать в [статье о переменных окружения на википедии](https://en.wikipedia.org/wiki/Environment_variable).

Во многих случаях не всегда очевидно, как переменные окружения могут быть полезны и применимы. Но они постоянно появляются в различных сценариях разработки, поэтому знать о них полезно.