完成一个简易的全局skill、command管理器

manager/internal/repo/git.go

@@ -0,0 +1,109 @@
+package repo
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+
+	"skillmgr/internal/config"
+)
+
+// URLToPathName 将 URL 转换为缓存目录名
+// 例如: https://github.com/user/repo.git -> github.com_user_repo
+func URLToPathName(url string) string {
+	clean := strings.TrimPrefix(url, "https://")
+	clean = strings.TrimPrefix(clean, "http://")
+	clean = strings.TrimSuffix(clean, ".git")
+	clean = strings.ReplaceAll(clean, "/", "_")
+	return clean
+}
+
+// CloneOrPull 克隆或更新仓库
+// 如果仓库不存在则 clone，存在则 pull
+func CloneOrPull(url, branch string) (string, error) {
+	cachePath, err := config.GetCachePath()
+	if err != nil {
+		return "", err
+	}
+
+	repoPath := filepath.Join(cachePath, URLToPathName(url))
+
+	// 检查是否已存在
+	if _, err := os.Stat(filepath.Join(repoPath, ".git")); err == nil {
+		// 已存在，执行 pull
+		return repoPath, pullRepo(repoPath, branch)
+	}
+
+	// 不存在，执行 clone
+	return repoPath, cloneRepo(url, branch, repoPath)
+}
+
+// cloneRepo 克隆仓库
+func cloneRepo(url, branch, dest string) error {
+	args := []string{"clone", "--depth", "1"}
+	if branch != "" {
+		args = append(args, "--branch", branch)
+	}
+	args = append(args, url, dest)
+
+	cmd := exec.Command("git", args...)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("git clone 失败: %w\n%s", err, output)
+	}
+	return nil
+}
+
+// pullRepo 更新仓库
+func pullRepo(path, branch string) error {
+	// 先 fetch
+	fetchCmd := exec.Command("git", "-C", path, "fetch", "origin")
+	if output, err := fetchCmd.CombinedOutput(); err != nil {
+		return fmt.Errorf("git fetch 失败: %w\n%s", err, output)
+	}
+
+	// 然后 pull
+	pullArgs := []string{"-C", path, "pull", "origin"}
+	if branch != "" {
+		pullArgs = append(pullArgs, branch)
+	}
+	pullCmd := exec.Command("git", pullArgs...)
+	output, err := pullCmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("git pull 失败: %w\n%s", err, output)
+	}
+	return nil
+}
+
+// GetRepoPath 获取仓库缓存路径
+func GetRepoPath(url string) (string, error) {
+	cachePath, err := config.GetCachePath()
+	if err != nil {
+		return "", err
+	}
+	return filepath.Join(cachePath, URLToPathName(url)), nil
+}
+
+// CloneTemporary 克隆临时仓库到临时目录
+// 返回临时目录路径和清理函数
+func CloneTemporary(url, branch string) (repoPath string, cleanup func(), err error) {
+	// 创建临时目录
+	tmpDir, err := os.MkdirTemp("", "skillmgr-temp-*")
+	if err != nil {
+		return "", nil, fmt.Errorf("创建临时目录失败: %w", err)
+	}
+
+	cleanup = func() {
+		os.RemoveAll(tmpDir)
+	}
+
+	// 克隆到临时目录
+	if err := cloneRepo(url, branch, tmpDir); err != nil {
+		cleanup()
+		return "", nil, err
+	}
+
+	return tmpDir, cleanup, nil
+}