91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
package diagnostic
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import (
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"fmt"
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"io"
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"os"
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"os/exec"
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"path/filepath"
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)
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func PipeCommandOutputToFile(command *exec.Cmd, outputHandle *os.File) (*LogInformation, error) {
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stdoutReader, err := command.StdoutPipe()
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if err != nil {
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return nil, fmt.Errorf(
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"error retrieving output from command '%s': %w",
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command.String(),
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err,
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)
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}
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if err := command.Start(); err != nil {
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return nil, fmt.Errorf(
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"error running command '%s': %w",
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command.String(),
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err,
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)
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}
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_, err = io.Copy(outputHandle, stdoutReader)
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if err != nil {
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return nil, fmt.Errorf(
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"error copying output from %s to file %s: %w",
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command.String(),
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outputHandle.Name(),
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err,
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)
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}
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if err := command.Wait(); err != nil {
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return nil, fmt.Errorf(
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"error waiting from command '%s': %w",
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command.String(),
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err,
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)
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}
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return NewLogInformation(outputHandle.Name(), true, false), nil
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}
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func CopyFilesFromDirectory(path string) (string, error) {
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// rolling logs have as suffix the current date thus
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// when iterating the path files they are already in
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// chronological order
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files, err := os.ReadDir(path)
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if err != nil {
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return "", fmt.Errorf("error reading directory %s: %w", path, err)
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}
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outputHandle, err := os.Create(filepath.Join(os.TempDir(), logFilename))
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if err != nil {
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return "", fmt.Errorf("creating file %s: %w", outputHandle.Name(), err)
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}
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defer outputHandle.Close()
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for _, file := range files {
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logHandle, err := os.Open(filepath.Join(path, file.Name()))
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if err != nil {
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return "", fmt.Errorf("error opening file %s:%w", file.Name(), err)
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}
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defer logHandle.Close()
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_, err = io.Copy(outputHandle, logHandle)
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if err != nil {
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return "", fmt.Errorf("error copying file %s:%w", logHandle.Name(), err)
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}
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}
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logHandle, err := os.Open(filepath.Join(path, "cloudflared.log"))
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if err != nil {
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return "", fmt.Errorf("error opening file %s:%w", logHandle.Name(), err)
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}
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defer logHandle.Close()
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_, err = io.Copy(outputHandle, logHandle)
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if err != nil {
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return "", fmt.Errorf("error copying file %s:%w", logHandle.Name(), err)
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}
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return outputHandle.Name(), nil
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}
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