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Fix PGP key handling and refactor Base64 API usage #6

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Fix PGP key handling and refactor Base64 API usage #6

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6b4979c
fix: PGP key handling and preprocessing
EmanueleIannuzzi Mar 20, 2026
bbe8f8e
refactor: remove unused Base64 API
EmanueleIannuzzi Mar 20, 2026
8c618a6
refactor: rename environment variables
EmanueleIannuzzi Mar 20, 2026
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35 changes: 18 additions & 17 deletions build.gradle.kts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,6 @@ import com.vanniktech.maven.publish.SonatypeHost
import helpers.configureMavenCentralMetadata
import org.jetbrains.kotlin.gradle.dsl.KotlinJvmProjectExtension
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
import kotlin.io.encoding.Base64
import kotlin.io.encoding.ExperimentalEncodingApi

val kotlinJvmTarget: String by project
Expand Down Expand Up @@ -72,30 +71,32 @@ subprojects {
}
}

@OptIn(ExperimentalEncodingApi::class)
private fun MavenPublishBaseExtension.signIfKeyPresent(project: Project) {
val keyId = System.getenv("KEY_ID")
val keyBytes = runCatching {
Base64.decode(System.getenv("SECRING").toByteArray()).decodeToString()
}.getOrNull()
val keyPassword = System.getenv("PASSWORD")
fun MavenPublishBaseExtension.signIfKeyPresent(project: Project) {
val keyId = System.getenv("SIGNING_KEY_ID")
val signingKey = System.getenv("SIGNING_KEY")
val signingKeyPassphrase = System.getenv("SIGNING_KEY_PASSPHRASE")

if (keyBytes != null && keyPassword != null) {
project.logger.info("Signing artifacts with in-memory PGP key (.gpg)")
if (!signingKey.isNullOrBlank()) {
project.logger.info("Signing artifacts with in-memory PGP key for ${project.path}")
project.extensions.configure<SigningExtension>("signing") {
// For binary .gpg keys
if (keyId == null) {
useInMemoryPgpKeys(keyBytes, keyPassword)
} else {
useInMemoryPgpKeys(keyId, keyBytes, keyPassword)
}
useInMemoryPgpKeys(keyId, preprocessPrivateGpgKey(signingKey), signingKeyPassphrase)
signAllPublications()
}
} else {
project.logger.info("Skipping signing of artifacts: PGP key or password not found in environment variables")
project.logger.warn("Skipping signing of artifacts: PGP key or password not found in environment variables for ${project.path}")
}
}

private fun preprocessPrivateGpgKey(key: String): String {
val prefix = "-----BEGIN PGP PRIVATE KEY BLOCK-----"
val suffix = "-----END PGP PRIVATE KEY BLOCK-----"
val delimiter = "\r\n"
return prefix + delimiter + key
.replace(prefix, "")
.replace(suffix, "")
.replace(" ", "\r\n") + delimiter + suffix
}

tasks.register("printVersion") {
doLast {
println(projectVersion)
Expand Down
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