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package syw
import (
"bytes"
"context"
"errors"
"os/exec"
"sync"
)
var mut sync.Mutex
var gitbinpath string
func findbin() string {
if gitbinpath == "" {
mut.Lock()
gitbinpath, _ = exec.LookPath("git")
mut.Unlock()
if gitbinpath == "" {
panic("failed to find 'git' executable")
}
}
return gitbinpath
}
func runCmd(ctx context.Context, args []string) (*cmdResult, error) {
cmd := exec.CommandContext(ctx, findbin(), args...)
outbuf := &bytes.Buffer{}
cmd.Stdout = outbuf
errbuf := &bytes.Buffer{}
cmd.Stderr = errbuf
var eerr *exec.ExitError
if err := cmd.Run(); err != nil && !errors.As(err, &eerr) {
return nil, err
}
return &cmdResult{
status: cmd.ProcessState.ExitCode(),
out: outbuf,
err: errbuf,
}, nil
}
type cmdResult struct {
status int
out *bytes.Buffer
err *bytes.Buffer
}
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