Fix ffmpeg resolution when in current directory (#4899)

* Use absolute path to resolve ffmpeg in config directory
* Pass absolute config path to plugins

internal/api/resolver_mutation_configure.go

@@ -27,7 +27,7 @@ func (r *mutationResolver) Setup(ctx context.Context, input manager.SetupInput)
 
 func (r *mutationResolver) DownloadFFMpeg(ctx context.Context) (string, error) {
 	mgr := manager.GetInstance()
-	configDir := mgr.Config.GetConfigPath()
+	configDir := mgr.Config.GetConfigPathAbs()
 
 	// don't run if ffmpeg is already installed
 	ffmpegPath := ffmpeg.FindFFMpeg(configDir)

internal/manager/config/config.go

@@ -496,6 +496,20 @@ func (i *Config) GetConfigPath() string {
 	return filepath.Dir(i.GetConfigFile())
 }
 
+// GetConfigPathAbs returns the path of the directory containing the used
+// configuration file, resolved to an absolute path. Returns the return value
+// of GetConfigPath if the path cannot be made into an absolute path.
+func (i *Config) GetConfigPathAbs() string {
+	p := filepath.Dir(i.GetConfigFile())
+
+	ret, _ := filepath.Abs(p)
+	if ret == "" {
+		return p
+	}
+
+	return ret
+}
+
 // GetDefaultDatabaseFilePath returns the default database filename,
 // which is located in the same directory as the config file.
 func (i *Config) GetDefaultDatabaseFilePath() string {

internal/manager/init.go

@@ -260,7 +260,9 @@ func (s *Manager) writeStashIcon() {
 
 func (s *Manager) RefreshFFMpeg(ctx context.Context) {
 	// use same directory as config path
-	configDirectory := s.Config.GetConfigPath()
+	// executing binaries requires directory to be included
+	// https://pkg.go.dev/os/exec#hdr-Executables_in_the_current_directory
+	configDirectory := s.Config.GetConfigPathAbs()
 	stashHomeDir := paths.GetStashHomeDirectory()
 
 	// prefer the configured paths

pkg/plugin/plugins.go

@@ -91,7 +91,7 @@ type PluginSetting struct {
 type ServerConfig interface {
 	GetHost() string
 	GetPort() int
-	GetConfigPath() string
+	GetConfigPathAbs() string
 	HasTLSConfig() bool
 	GetPluginsPath() string
 	GetDisabledPlugins() []string
@@ -249,7 +249,7 @@ func (c Cache) makeServerConnection(ctx context.Context) common.StashServerConne
 		Host:          c.config.GetHost(),
 		Port:          c.config.GetPort(),
 		SessionCookie: cookie,
-		Dir:           c.config.GetConfigPath(),
+		Dir:           c.config.GetConfigPathAbs(),
 	}
 
 	if c.config.HasTLSConfig() {