mirror of
https://github.com/hcengineering/platform.git
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99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
//
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// Copyright © 2025 Hardcore Engineering Inc.
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//
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// Licensed under the Eclipse Public License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License. You may
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// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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//
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package mediaconvert
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import (
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"bytes"
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"context"
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"io"
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"os"
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"os/exec"
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"sync"
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"github.com/hcengineering/stream/internal/pkg/log"
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"go.uber.org/zap"
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)
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// CommandExecutor executes multiple commands in parallel
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type CommandExecutor interface {
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Execute(commands []*exec.Cmd) error
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}
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type commandExecutor struct {
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logger *zap.Logger
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}
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var _ CommandExecutor = (*commandExecutor)(nil)
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// NewCommandExecutor creates a new instance of command executor
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func NewCommandExecutor(ctx context.Context) CommandExecutor {
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return &commandExecutor{
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logger: log.FromContext(ctx),
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}
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}
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// Execute executes multiple commands in parallel
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func (e *commandExecutor) Execute(commands []*exec.Cmd) error {
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logger := e.logger
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errCh := make(chan error, len(commands))
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var mu sync.Mutex
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var wg sync.WaitGroup
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for _, cmd := range commands {
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wg.Add(1)
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go func(cmd *exec.Cmd) {
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defer wg.Done()
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var stdoutBuf = &bytes.Buffer{}
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var stderrBuf = &bytes.Buffer{}
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if logger.Core().Enabled(zap.DebugLevel) {
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cmd.Stdout = io.MultiWriter(os.Stdout, stdoutBuf)
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cmd.Stderr = io.MultiWriter(os.Stderr, stderrBuf)
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} else {
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cmd.Stdout = stdoutBuf
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cmd.Stderr = stderrBuf
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}
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logger.Info("run command", zap.String("cmd", cmd.String()))
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if err := cmd.Run(); err != nil {
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errCh <- err
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// Lock so only on goroutine can write to stdout/stderr at the same time
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mu.Lock()
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defer mu.Unlock()
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logger.Error("can not wait for command end", zap.Error(err), zap.String("cmd", cmd.String()))
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if _, writeErr := os.Stdout.Write(stdoutBuf.Bytes()); writeErr != nil {
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logger.Error("can not write stdout ", zap.Error(writeErr))
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}
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if _, writeErr := os.Stderr.Write(stderrBuf.Bytes()); writeErr != nil {
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logger.Error("can not write stderr", zap.Error(writeErr))
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}
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}
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}(cmd)
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}
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wg.Wait()
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close(errCh)
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for err := range errCh {
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return err
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}
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return nil
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}
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