neko/internal/plugins/manager.go
2022-04-15 19:28:00 +00:00

109 lines
2.2 KiB
Go

package plugins
import (
"fmt"
"os"
"path/filepath"
"plugin"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
"github.com/spf13/cobra"
"gitlab.com/demodesk/neko/server/internal/config"
"gitlab.com/demodesk/neko/server/pkg/types"
)
type PluginsManagerCtx struct {
logger zerolog.Logger
plugins map[string]types.Plugin
}
func New(config *config.Plugins) *PluginsManagerCtx {
manager := &PluginsManagerCtx{
logger: log.With().Str("module", "plugins").Logger(),
plugins: map[string]types.Plugin{},
}
if config.Enabled {
err := manager.loadDir(config.Dir)
manager.logger.Err(err).Msgf("loading finished, total %d plugins", len(manager.plugins))
}
return manager
}
func (manager *PluginsManagerCtx) loadDir(dir string) error {
return filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if info.IsDir() {
return nil
}
err = manager.load(path)
manager.logger.Err(err).Str("plugin", path).Msg("loading a plugin")
return nil
})
}
func (manager *PluginsManagerCtx) load(path string) error {
pl, err := plugin.Open(path)
if err != nil {
return err
}
sym, err := pl.Lookup("Plugin")
if err != nil {
return err
}
p, ok := sym.(types.Plugin)
if !ok {
return fmt.Errorf("not a valid plugin")
}
manager.plugins[path] = p
return nil
}
func (manager *PluginsManagerCtx) InitConfigs(cmd *cobra.Command) {
for path, plug := range manager.plugins {
if err := plug.Config().Init(cmd); err != nil {
log.Err(err).Str("plugin", path).Msg("unable to initialize configuration")
}
}
}
func (manager *PluginsManagerCtx) SetConfigs() {
for _, plug := range manager.plugins {
plug.Config().Set()
}
}
func (manager *PluginsManagerCtx) Start(
sessionManager types.SessionManager,
webSocketManager types.WebSocketManager,
apiManager types.ApiManager,
) {
for _, plug := range manager.plugins {
plug.Start(types.PluginManagers{
SessionManager: sessionManager,
WebSocketManager: webSocketManager,
ApiManager: apiManager,
})
}
}
func (manager *PluginsManagerCtx) Shutdown() error {
for path, plug := range manager.plugins {
err := plug.Shutdown()
manager.logger.Err(err).Str("plugin", path).Msg("plugin shutdown")
}
return nil
}