fix: reload CLI config when getting credentials

When running in SDK server mode and using the file cred store, we must
reload the credentials in the file each time. Typically, these
credentials will be added via a tool call, which would invalidate the
credentials held in memory.

Signed-off-by: Donnie Adams <donnie@acorn.io>

Author: thedadams

pkg/config/cliconfig.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/adrg/xdg"
 	"github.com/docker/cli/cli/config/types"
+	"github.com/gptscript-ai/gptscript/pkg/mvl"
 )
 
 const (
@@ -24,6 +25,7 @@ const (
 var (
 	// Helpers is a list of all supported credential helpers from github.com/gptscript-ai/gptscript-credential-helpers
 	Helpers = []string{WincredCredHelper, OsxkeychainCredHelper, SecretserviceCredHelper, PassCredHelper}
+	log     = mvl.Package()
 )
 
 type AuthConfig types.AuthConfig
@@ -85,9 +87,9 @@ func (c *CLIConfig) Save() error {
 	}
 
 	if c.auths != nil {
-		c.Auths = map[string]AuthConfig{}
+		c.Auths = make(map[string]AuthConfig, len(c.auths))
 		for k, v := range c.auths {
-			c.Auths[k] = (AuthConfig)(v)
+			c.Auths[k] = AuthConfig(v)
 		}
 		c.auths = nil
 	}
@@ -116,13 +118,21 @@ func (c *CLIConfig) GetAuthConfigs() map[string]types.AuthConfig {
 		defer c.authsLock.Unlock()
 	}
 
+	if err := c.readFileIntoConfig(c.location); err != nil {
+		// This is implementing an interface, so we can't return this error.
+		log.Warnf("Failed to read config file: %v", err)
+	}
+
 	if c.auths == nil {
-		c.auths = map[string]types.AuthConfig{}
-		for k, v := range c.Auths {
-			authConfig := (types.AuthConfig)(v)
-			c.auths[k] = authConfig
-		}
+		c.auths = make(map[string]types.AuthConfig, len(c.Auths))
+	}
+
+	// Assume that whatever was pulled from the file is more recent.
+	// The docker creds framework will save the file after creating or updating a credential.
+	for k, v := range c.Auths {
+		c.auths[k] = types.AuthConfig(v)
 	}
+
 	return c.auths
 }
 
@@ -142,17 +152,13 @@ func ReadCLIConfig(gptscriptConfigFile string) (*CLIConfig, error) {
 		}
 	}
 
-	data, err := readFile(gptscriptConfigFile)
-	if err != nil {
-		return nil, err
-	}
 	result := &CLIConfig{
 		authsLock: &sync.Mutex{},
 		location:  gptscriptConfigFile,
-		raw:       data,
 	}
-	if err := json.Unmarshal(data, result); err != nil {
-		return nil, fmt.Errorf("failed to unmarshal %s: %v", gptscriptConfigFile, err)
+
+	if err := result.readFileIntoConfig(gptscriptConfigFile); err != nil {
+		return nil, err
 	}
 
 	if store := os.Getenv("GPTSCRIPT_CREDENTIAL_STORE"); store != "" {
@@ -180,13 +186,18 @@ func (c *CLIConfig) setDefaultCredentialsStore() error {
 	return c.Save()
 }
 
-func readFile(path string) ([]byte, error) {
+func (c *CLIConfig) readFileIntoConfig(path string) error {
 	data, err := os.ReadFile(path)
 	if os.IsNotExist(err) {
-		return []byte("{}"), nil
+		return nil
 	} else if err != nil {
-		return nil, fmt.Errorf("failed to read user config %s: %w", path, err)
+		return fmt.Errorf("failed to read user config %s: %w", path, err)
 	}
 
-	return data, nil
+	c.raw = data
+	if err := json.Unmarshal(data, c); err != nil {
+		return fmt.Errorf("failed to unmarshal %s: %v", path, err)
+	}
+
+	return nil
 }