Rework key deletion to accept an identifier

crypto-common/src/main/kotlin/app/passwordstore/crypto/KeyManager.kt

@@ -20,8 +20,8 @@ public interface KeyManager<Key, KeyIdentifier> {
    */
   public suspend fun addKey(key: Key, replace: Boolean = false): Result<Key, Throwable>
 
-  /** Removes [key] from the store. */
-  public suspend fun removeKey(key: Key): Result<Key, Throwable>
+  /** Finds a key for [identifier] in the store and deletes it. */
+  public suspend fun removeKey(identifier: KeyIdentifier): Result<Unit, Throwable>
 
   /**
    * Get a [Key] for the given [id]. The actual semantics of what [id] is are left to individual

crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/PGPKeyManager.kt

@@ -17,6 +17,7 @@ import app.passwordstore.crypto.errors.KeyNotFoundException
 import app.passwordstore.crypto.errors.NoKeysAvailableException
 import app.passwordstore.util.coroutines.runSuspendCatching
 import com.github.michaelbull.result.Result
+import com.github.michaelbull.result.unwrap
 import java.io.File
 import javax.inject.Inject
 import kotlinx.coroutines.CoroutineDispatcher
@@ -71,17 +72,15 @@ constructor(
       }
     }
 
-  override suspend fun removeKey(key: PGPKey): Result<PGPKey, Throwable> =
+  override suspend fun removeKey(identifier: GpgIdentifier): Result<Unit, Throwable> =
     withContext(dispatcher) {
       runSuspendCatching {
         if (!keyDirExists()) throw KeyDirectoryUnavailableException
-        if (tryParseKeyring(key) == null) throw InvalidKeyException
+        val key = getKeyById(identifier).unwrap()
         val keyFile = File(keyDir, "${tryGetId(key)}.$KEY_EXTENSION")
         if (keyFile.exists()) {
           if (!keyFile.delete()) throw KeyDeletionFailedException
         }
-
-        key
       }
     }
 

crypto-pgpainless/src/test/kotlin/app/passwordstore/crypto/PGPKeyManagerTest.kt

@@ -2,6 +2,7 @@ package app.passwordstore.crypto
 
 import app.passwordstore.crypto.GpgIdentifier.KeyId
 import app.passwordstore.crypto.GpgIdentifier.UserId
+import app.passwordstore.crypto.KeyUtils.tryGetId
 import app.passwordstore.crypto.errors.KeyAlreadyExistsException
 import app.passwordstore.crypto.errors.KeyNotFoundException
 import app.passwordstore.crypto.errors.NoKeysAvailableException
@@ -93,13 +94,12 @@ class PGPKeyManagerTest {
       // Add key using KeyManager
       keyManager.addKey(secretKey).unwrap()
 
-      // Check if the key id returned is correct
-      val keyId = keyManager.getKeyId(keyManager.removeKey(secretKey).unwrap())
-      assertEquals(KeyId(CryptoConstants.KEY_ID), keyId)
+      // Remove key
+      keyManager.removeKey(tryGetId(secretKey)!!).unwrap()
 
-      // Check if the keys directory have 0 files
-      val keysDir = File(filesDir, PGPKeyManager.KEY_DIR_NAME)
-      assertEquals(0, keysDir.list()?.size)
+      // Check that no keys remain
+      val keys = keyManager.getAllKeys().unwrap()
+      assertEquals(0, keys.size)
     }
 
   @Test