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service_repo.go
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/
service_repo.go
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package git
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"strings"
)
func CheckoutAndCompareGitHash(gitURL, gitHash, currentGitHash string) (string, string, error) {
tempDir, err := ioutil.TempDir("", "")
if err != nil {
return "", "", fmt.Errorf("failed to create temporary directory: %v", err)
}
defer os.RemoveAll(tempDir)
err = os.Chdir(tempDir)
if err != nil {
return "", "", fmt.Errorf("failed to change directory to temporary directory: %v", err)
}
cmd := exec.Command("git", "clone", gitURL, "source-dir")
err = cmd.Run()
if err != nil {
return "", "", fmt.Errorf("failed to clone git repository: %v", err)
}
err = os.Chdir("source-dir")
if err != nil {
return "", "", fmt.Errorf("failed to change directory to source-dir: %v", err)
}
if gitHash == "" {
fmt.Printf("No git hash provided. Using HEAD.\n")
cmd = exec.Command("git", "rev-parse", "HEAD")
output, err := cmd.Output()
if err != nil {
return "", "", fmt.Errorf("failed to get git hash: %v", err)
}
gitHash = strings.TrimSpace(string(output))
fmt.Printf("The head githash is %s\n", gitHash)
}
if currentGitHash == gitHash {
return "", "", fmt.Errorf("git hash %s is already at HEAD", gitHash)
} else {
cmd := exec.Command("git", "log", "--no-merges", fmt.Sprintf("%s..%s", currentGitHash, gitHash))
commitLog, err := cmd.Output()
if err != nil {
return "", "", err
}
return gitHash, string(commitLog), nil
}
}