bitcoin-core-binaries: Support SHA256 hash verification

The hash verification task looks up the expected hash and verifies that
the provided file has that hash. To look up the expected hash, the
Gradle task parses the input hash list file of the format
'<sha256hash> filename.tar.gz' (per line). Most projects use this format.

build-logic/bitcoin-core-binaries/build.gradle.kts

@@ -18,4 +18,5 @@ gradlePlugin {
 
 dependencies {
     implementation(project(":gradle-tasks"))
+    implementation(libs.google.guava)
 }

build-logic/bitcoin-core-binaries/src/main/kotlin/bisq/gradle/bitcoin_core/HashVerificationTask.kt

@@ -0,0 +1,50 @@
+package bisq.gradle.bitcoin_core
+
+import com.google.common.hash.Hashing
+import org.gradle.api.DefaultTask
+import org.gradle.api.GradleException
+import org.gradle.api.file.RegularFileProperty
+import org.gradle.api.tasks.InputFile
+import org.gradle.api.tasks.OutputFile
+import org.gradle.api.tasks.TaskAction
+
+abstract class HashVerificationTask : DefaultTask() {
+    @get:InputFile
+    abstract val inputFile: RegularFileProperty
+
+    @get:InputFile
+    abstract val sha256File: RegularFileProperty
+
+    @get:OutputFile
+    abstract val resultFile: RegularFileProperty
+
+    @TaskAction
+    fun verify() {
+        val input = inputFile.get().asFile.readBytes()
+        val hash: String = Hashing.sha256()
+            .hashBytes(input)
+            .toString()
+
+        val expectedHash = getExpectedHash()
+        if (hash != expectedHash) {
+            throw GradleException(
+                "Hash verification failed for `${inputFile.get().asFile.absolutePath}`. " +
+                        "Expected: `$expectedHash, Actual: `$hash`"
+            )
+        }
+
+        resultFile.get().asFile.writeText(hash)
+    }
+
+    private fun getExpectedHash(): String {
+        val inputFileName = inputFile.get().asFile.name
+        for (line in sha256File.get().asFile.readLines()) {
+            if (line.endsWith(inputFileName)) {
+                // '<sha256hash> filename.tar.gz'
+                return line.split(" ").first()
+            }
+        }
+
+        throw GradleException("Couldn't find expected hash for `$inputFile`.")
+    }
+}