/
command.go
113 lines (103 loc) · 2.72 KB
/
command.go
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package framework
import (
"fmt"
"io"
"os"
"os/exec"
"path/filepath"
"strings"
"sync"
"time"
"github.com/go-logr/logr"
)
func RunCommand(logger logr.Logger, opts *Options, logPath string, cmd *exec.Cmd) error {
logFile, cmd, formattedCommand, err := setupCommand(opts, logPath, cmd)
if err != nil {
return err
}
once := sync.Once{}
closeFile := func() {
if err := logFile.Close(); err != nil {
logger.Error(err, "failed to close log file")
}
}
defer func() {
once.Do(closeFile)
}()
start := time.Now()
logger = logger.WithValues("cmd", formattedCommand, "output", logPath)
logger.Info("running command")
err = cmd.Run()
duration := time.Since(start)
logger = logger.WithValues("error", err != nil, "duration", duration)
logger.Info("ran command")
if err != nil {
once.Do(closeFile)
output, err := os.ReadFile(filepath.Join(opts.ArtifactDir, logPath))
if err != nil {
logger.Error(err, "couldn't read command output")
}
fmt.Println(string(output))
}
return err
}
func StartCommand(logger logr.Logger, opts *Options, logPath string, cmd *exec.Cmd) error {
logFile, cmd, formattedCommand, err := setupCommand(opts, logPath, cmd)
if err != nil {
return err
}
defer func() {
if err := logFile.Close(); err != nil {
logger.Error(err, "failed to close log file")
}
}()
logger = logger.WithValues("cmd", formattedCommand, "output", logPath)
logger.Info("starting command")
err = cmd.Start()
go func() {
if err := cmd.Wait(); err != nil {
logger.Error(err, "error waiting for long-running command")
}
}()
return err
}
func setupCommand(opts *Options, logPath string, cmd *exec.Cmd) (*os.File, *exec.Cmd, string, error) {
var formattedArgs []string
for i, arg := range cmd.Args {
if i == 0 {
continue // ignore the executable, we use cmd.Path
}
formattedArgs = append(formattedArgs, fmt.Sprintf("'%s'", arg))
}
formattedCommand := fmt.Sprintf("%s %v", cmd.Path, strings.Join(formattedArgs, " "))
logFile, err := Artifact(opts, logPath)
if err != nil {
return nil, nil, "", err
}
if cmd.Stdout != nil {
stdout := cmd.Stdout
cmd.Stdout = io.MultiWriter(stdout, logFile)
} else {
cmd.Stdout = logFile
}
if cmd.Stderr != nil {
stderr := cmd.Stderr
cmd.Stderr = io.MultiWriter(stderr, logFile)
} else {
cmd.Stderr = logFile
}
for _, env := range cmd.Env {
if _, err := logFile.WriteString(fmt.Sprintf("$ export %s\n", env)); err != nil {
return nil, nil, "", err
}
}
if cmd.Dir != "" {
if _, err := logFile.WriteString(fmt.Sprintf("$ cd %s\n", cmd.Dir)); err != nil {
return nil, nil, "", err
}
}
if _, err := logFile.WriteString(fmt.Sprintf("$ %s\n", formattedCommand)); err != nil {
return nil, nil, "", err
}
return logFile, cmd, formattedCommand, nil
}