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package repository
import (
"bytes"
"fmt"
"io"
"strings"
"golang.org/x/sys/execabs"
)
// gitCli is a helper to launch CLI git commands
type gitCli struct {
path string
}
// Run the given git command with the given I/O reader/writers, returning an error if it fails.
func (cli gitCli) runGitCommandWithIO(stdin io.Reader, stdout, stderr io.Writer, args ...string) error {
// make sure that the working directory for the command
// always exist, in particular when running "git init".
path := strings.TrimSuffix(cli.path, ".git")
// fmt.Printf("[%s] Running git %s\n", path, strings.Join(args, " "))
cmd := execabs.Command("git", args...)
cmd.Dir = path
cmd.Stdin = stdin
cmd.Stdout = stdout
cmd.Stderr = stderr
return cmd.Run()
}
// Run the given git command and return its stdout, or an error if the command fails.
func (cli gitCli) runGitCommandRaw(stdin io.Reader, args ...string) (string, string, error) {
var stdout bytes.Buffer
var stderr bytes.Buffer
err := cli.runGitCommandWithIO(stdin, &stdout, &stderr, args...)
return strings.TrimSpace(stdout.String()), strings.TrimSpace(stderr.String()), err
}
// Run the given git command and return its stdout, or an error if the command fails.
func (cli gitCli) runGitCommandWithStdin(stdin io.Reader, args ...string) (string, error) {
stdout, stderr, err := cli.runGitCommandRaw(stdin, args...)
if err != nil {
if stderr == "" {
stderr = "Error running git command: " + strings.Join(args, " ")
}
err = fmt.Errorf(stderr)
}
return stdout, err
}
// Run the given git command and return its stdout, or an error if the command fails.
func (cli gitCli) runGitCommand(args ...string) (string, error) {
return cli.runGitCommandWithStdin(nil, args...)
}
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