Pinecone standalone refactoring (#2685)

This refactors the `dendrite-demo-pinecone` executable so that it:

1. Converts the old `.key` file into a standard `.pem` file
2. Allows passing in the `--config` option to supply a normal Dendrite configuration file, so that you can configure PostgreSQL instead of SQLite, appservices and all the other usual stuff

1 files changed, 9 insertions, 6 deletions

diff --git a/setup/config/config.go b/setup/config/config.go
index 924b51f2..cc9c0447 100644
--- a/setup/config/config.go
+++ b/setup/config/config.go
@@ -224,12 +224,7 @@ func loadConfig(
 	}
 
 	privateKeyPath := absPath(basePath, c.Global.PrivateKeyPath)
-	privateKeyData, err := readFile(privateKeyPath)
-	if err != nil {
-		return nil, err
-	}
-
-	if c.Global.KeyID, c.Global.PrivateKey, err = readKeyPEM(privateKeyPath, privateKeyData, true); err != nil {
+	if c.Global.KeyID, c.Global.PrivateKey, err = LoadMatrixKey(privateKeyPath, readFile); err != nil {
 		return nil, err
 	}
 
@@ -265,6 +260,14 @@ func loadConfig(
 	return &c, nil
 }
 
+func LoadMatrixKey(privateKeyPath string, readFile func(string) ([]byte, error)) (gomatrixserverlib.KeyID, ed25519.PrivateKey, error) {
+	privateKeyData, err := readFile(privateKeyPath)
+	if err != nil {
+		return "", nil, err
+	}
+	return readKeyPEM(privateKeyPath, privateKeyData, true)
+}
+
 // Derive generates data that is derived from various values provided in
 // the config file.
 func (config *Dendrite) Derive() error {