113 lines
3.3 KiB
Go
113 lines
3.3 KiB
Go
package worker
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/* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* Original Code Copyright (C) 2022 Blender Foundation.
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*
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* This file is part of Flamenco.
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*
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* Flamenco is free software: you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* Flamenco is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* Flamenco. If not, see <https://www.gnu.org/licenses/>.
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*
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* ***** END GPL LICENSE BLOCK ***** */
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import (
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"context"
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"errors"
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"fmt"
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"time"
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"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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"gitlab.com/blender/flamenco-ng-poc/pkg/api"
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)
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type CommandListener interface {
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// LogProduced sends any logging to whatever service for storing logging.
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LogProduced(taskID TaskID, logLines []string) error
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// OutputProduced tells the Manager there has been some output (most commonly a rendered frame or video).
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OutputProduced(taskID TaskID, outputLocation string) error
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}
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type CommandExecutor struct {
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listener CommandListener
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// registry maps a command name to a function that runs that command.
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registry map[string]commandCallable
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}
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var _ CommandRunner = (*CommandExecutor)(nil)
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type commandCallable func(ctx context.Context, logger zerolog.Logger, taskID TaskID, cmd api.Command) error
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func NewCommandExecutor(listener CommandListener) *CommandExecutor {
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ce := &CommandExecutor{
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listener: listener,
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}
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ce.registry = map[string]commandCallable{
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"echo": ce.cmdEcho,
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"sleep": ce.cmdSleep,
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}
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return ce
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}
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func (ce *CommandExecutor) Run(ctx context.Context, taskID TaskID, cmd api.Command) error {
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logger := log.With().Str("task", string(taskID)).Str("command", cmd.Name).Logger()
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logger.Info().Interface("settings", cmd.Settings).Msg("running command")
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runner, ok := ce.registry[cmd.Name]
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if !ok {
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return fmt.Errorf("unknown command: %q", cmd.Name)
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}
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return runner(ctx, logger, taskID, cmd)
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}
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func (ce *CommandExecutor) cmdEcho(ctx context.Context, logger zerolog.Logger, taskID TaskID, cmd api.Command) error {
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message, ok := cmd.Settings["message"]
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if !ok {
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return fmt.Errorf("missing 'message' setting")
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}
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messageStr := fmt.Sprintf("%v", message)
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logger.Info().Str("message", messageStr).Msg("echo")
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logLines := []string{
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fmt.Sprintf("echo: %q", messageStr),
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}
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if err := ce.listener.LogProduced(taskID, logLines); err != nil {
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return err
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}
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return nil
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}
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func (ce *CommandExecutor) cmdSleep(ctx context.Context, logger zerolog.Logger, taskID TaskID, cmd api.Command) error {
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sleepTime, ok := cmd.Settings["time_in_seconds"]
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if !ok {
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return errors.New("missing setting 'time_in_seconds'")
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}
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var duration time.Duration
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switch v := sleepTime.(type) {
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case int:
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duration = time.Duration(v) * time.Second
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default:
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log.Warn().Interface("time_in_seconds", v).Msg("bad type for setting 'time_in_seconds', expected int")
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return fmt.Errorf("bad type for setting 'time_in_seconds', expected int, not %v", v)
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}
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log.Info().Str("duration", duration.String()).Msg("sleep")
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time.Sleep(duration)
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return nil
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}
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