|
| 1 | +package cmd |
| 2 | + |
| 3 | +import ( |
| 4 | + "errors" |
| 5 | + "fmt" |
| 6 | + "os" |
| 7 | + "path/filepath" |
| 8 | + "time" |
| 9 | + |
| 10 | + "github.com/go-git/go-git/v5" |
| 11 | + "github.com/go-git/go-git/v5/config" |
| 12 | + "github.com/go-git/go-git/v5/plumbing" |
| 13 | + "github.com/go-git/go-git/v5/plumbing/object" |
| 14 | + gitconfig "github.com/openmcp-project/bootstrapper/internal/git-config" |
| 15 | + "github.com/openmcp-project/bootstrapper/internal/template" |
| 16 | + "github.com/spf13/cobra" |
| 17 | +) |
| 18 | + |
| 19 | +const ( |
| 20 | + FlagGitConfig = "git-config" |
| 21 | +) |
| 22 | + |
| 23 | +// manageDeploymentRepoCmd represents the manageDeploymentRepo command |
| 24 | +var manageDeploymentRepoCmd = &cobra.Command{ |
| 25 | + Use: "manageDeploymentRepo", |
| 26 | + Short: "A brief description of your command", |
| 27 | + Long: `A longer description that spans multiple lines and likely contains examples |
| 28 | +and usage of using your command. For example: |
| 29 | +
|
| 30 | +Cobra is a CLI library for Go that empowers applications. |
| 31 | +This application is a tool to generate the needed files |
| 32 | +to quickly create a Cobra application.`, |
| 33 | + Args: cobra.ExactArgs(3), |
| 34 | + ArgAliases: []string{ |
| 35 | + "deploymentRepository", |
| 36 | + "deploymentRepositoryBranch", |
| 37 | + "templateDirectory", |
| 38 | + }, |
| 39 | + RunE: func(cmd *cobra.Command, args []string) error { |
| 40 | + deploymentRepository := args[0] |
| 41 | + deploymentRepositoryBranch := args[1] |
| 42 | + templateDirectory := args[2] |
| 43 | + |
| 44 | + gitConfig, err := gitconfig.ParseConfig(cmd.Flag(FlagGitConfig).Value.String()) |
| 45 | + if err != nil { |
| 46 | + return err |
| 47 | + } |
| 48 | + if err := gitConfig.Validate(); err != nil { |
| 49 | + return err |
| 50 | + } |
| 51 | + |
| 52 | + cloneOptions := &git.CloneOptions{ |
| 53 | + URL: deploymentRepository, |
| 54 | + } |
| 55 | + if err := gitConfig.ConfigureCloneOptions(cloneOptions); err != nil { |
| 56 | + return err |
| 57 | + } |
| 58 | + |
| 59 | + repo, tmpDir, err := CloneRepo(deploymentRepository, gitConfig) |
| 60 | + fmt.Printf("Cloned repository to temporary directory: %s\n", tmpDir) |
| 61 | + if err != nil { |
| 62 | + return fmt.Errorf("failed to clone repository: %w", err) |
| 63 | + } |
| 64 | + defer func(path string) { |
| 65 | + err := os.RemoveAll(path) |
| 66 | + if err != nil { |
| 67 | + fmt.Fprintf(os.Stderr, "failed to remove temporary directory %s: %v\n", path, err) |
| 68 | + } |
| 69 | + }(tmpDir) |
| 70 | + |
| 71 | + // Check if branch exists |
| 72 | + branchExists := false |
| 73 | + branches, err := repo.Branches() |
| 74 | + if err != nil { |
| 75 | + return fmt.Errorf("failed to list branches: %w", err) |
| 76 | + } |
| 77 | + branchRefName := plumbing.NewBranchReferenceName(deploymentRepositoryBranch) |
| 78 | + branches.ForEach(func(ref *plumbing.Reference) error { |
| 79 | + if ref.Name() == branchRefName { |
| 80 | + branchExists = true |
| 81 | + } |
| 82 | + return nil |
| 83 | + }) |
| 84 | + |
| 85 | + workTree, err := repo.Worktree() |
| 86 | + if err != nil { |
| 87 | + return fmt.Errorf("failed to get worktree: %w", err) |
| 88 | + } |
| 89 | + |
| 90 | + if !branchExists { |
| 91 | + // Create and checkout new branch |
| 92 | + fmt.Printf("Branch %s does not exist. Creating...\n", deploymentRepositoryBranch) |
| 93 | + err = workTree.Checkout(&git.CheckoutOptions{ |
| 94 | + Branch: branchRefName, |
| 95 | + Create: true, |
| 96 | + }) |
| 97 | + if err != nil { |
| 98 | + return fmt.Errorf("failed to create branch: %w", err) |
| 99 | + } |
| 100 | + |
| 101 | + pushOptions := &git.PushOptions{ |
| 102 | + RefSpecs: []config.RefSpec{ |
| 103 | + config.RefSpec(branchRefName + ":" + branchRefName), |
| 104 | + }, |
| 105 | + } |
| 106 | + |
| 107 | + if err := gitConfig.ConfigurePushOptions(pushOptions); err != nil { |
| 108 | + return fmt.Errorf("failed to configure push options: %w", err) |
| 109 | + } |
| 110 | + |
| 111 | + // Push new branch to remote |
| 112 | + err = repo.Push(pushOptions) |
| 113 | + if err != nil && !errors.Is(err, git.NoErrAlreadyUpToDate) { |
| 114 | + return fmt.Errorf("failed to push new branch: %w", err) |
| 115 | + } |
| 116 | + } else { |
| 117 | + // Checkout existing branch |
| 118 | + err = workTree.Checkout(&git.CheckoutOptions{ |
| 119 | + Branch: branchRefName, |
| 120 | + }) |
| 121 | + if err != nil { |
| 122 | + return fmt.Errorf("failed to checkout branch: %w", err) |
| 123 | + } |
| 124 | + } |
| 125 | + |
| 126 | + // open the template directory |
| 127 | + templateDir, err := os.Open(templateDirectory) |
| 128 | + if err != nil { |
| 129 | + return fmt.Errorf("failed to open template directory: %w", err) |
| 130 | + } |
| 131 | + defer func() { |
| 132 | + if err := templateDir.Close(); err != nil { |
| 133 | + fmt.Fprintf(os.Stderr, "failed to close template directory: %v\n", err) |
| 134 | + } |
| 135 | + }() |
| 136 | + |
| 137 | + te := template.NewTemplateExecution() |
| 138 | + templateInput := make(map[string]interface{}) |
| 139 | + |
| 140 | + // Recursively walk through all files in the template directory |
| 141 | + err = filepath.WalkDir(templateDirectory, func(path string, d os.DirEntry, err error) error { |
| 142 | + if err != nil { |
| 143 | + return err |
| 144 | + } |
| 145 | + if !d.IsDir() { |
| 146 | + // Process the file (path) |
| 147 | + fmt.Printf("Found file: %s\n", path) |
| 148 | + template, err := os.ReadFile(path) |
| 149 | + if err != nil { |
| 150 | + return fmt.Errorf("failed to read template file %s: %w", path, err) |
| 151 | + } |
| 152 | + |
| 153 | + templateResult, err := te.Execute(path, string(template), templateInput) |
| 154 | + if err != nil { |
| 155 | + return fmt.Errorf("failed to execute template %s: %w", path, err) |
| 156 | + } |
| 157 | + |
| 158 | + pathInRepo, err := filepath.Rel(templateDirectory, path) |
| 159 | + fileInWt, err := workTree.Filesystem.OpenFile(pathInRepo, os.O_WRONLY|os.O_CREATE, 0644) |
| 160 | + if err != nil { |
| 161 | + return fmt.Errorf("failed to open file in worktree %s: %w", path, err) |
| 162 | + } |
| 163 | + defer fileInWt.Close() |
| 164 | + _, err = fileInWt.Write(templateResult) |
| 165 | + if err != nil { |
| 166 | + return fmt.Errorf("failed to write to file in worktree %s: %w", path, err) |
| 167 | + } |
| 168 | + // Add the file to the git index |
| 169 | + if _, err := workTree.Add(pathInRepo); err != nil { |
| 170 | + return fmt.Errorf("failed to add file to git index: %w", err) |
| 171 | + } |
| 172 | + } |
| 173 | + return nil |
| 174 | + }) |
| 175 | + if err != nil { |
| 176 | + return fmt.Errorf("failed to walk template directory: %w", err) |
| 177 | + } |
| 178 | + |
| 179 | + // Commit the changes |
| 180 | + commitMsg := "Update deployment repo with template files" |
| 181 | + _, err = workTree.Commit(commitMsg, &git.CommitOptions{ |
| 182 | + Author: &object.Signature{ |
| 183 | + Name: "openmcp-bootstrapper", |
| 184 | + |
| 185 | + When: time.Now(), |
| 186 | + }, |
| 187 | + }) |
| 188 | + if err != nil { |
| 189 | + if !errors.Is(err, git.ErrEmptyCommit) { |
| 190 | + return fmt.Errorf("failed to commit changes: %w", err) |
| 191 | + } |
| 192 | + } |
| 193 | + |
| 194 | + // Push the changes |
| 195 | + pushOptions := &git.PushOptions{} |
| 196 | + if err := gitConfig.ConfigurePushOptions(pushOptions); err != nil { |
| 197 | + return fmt.Errorf("failed to configure push options: %w", err) |
| 198 | + } |
| 199 | + err = repo.Push(pushOptions) |
| 200 | + if err != nil { |
| 201 | + if !errors.Is(err, git.NoErrAlreadyUpToDate) { |
| 202 | + return fmt.Errorf("failed to push changes: %w", err) |
| 203 | + } |
| 204 | + } |
| 205 | + |
| 206 | + return nil |
| 207 | + }, |
| 208 | +} |
| 209 | + |
| 210 | +func init() { |
| 211 | + RootCmd.AddCommand(manageDeploymentRepoCmd) |
| 212 | + |
| 213 | + manageDeploymentRepoCmd.PersistentFlags().StringP("ocm-config", "", "", "ocm configuration file") |
| 214 | + manageDeploymentRepoCmd.Flags().StringP(FlagGitConfig, "", "", "Git configuration file") |
| 215 | + if err := manageDeploymentRepoCmd.MarkFlagRequired(FlagGitConfig); err != nil { |
| 216 | + panic(err) |
| 217 | + } |
| 218 | +} |
| 219 | + |
| 220 | +func CloneRepo(repoURL string, config *gitconfig.Config) (*git.Repository, string, error) { |
| 221 | + cloneOptions := &git.CloneOptions{ |
| 222 | + URL: repoURL, |
| 223 | + } |
| 224 | + |
| 225 | + if err := config.ConfigureCloneOptions(cloneOptions); err != nil { |
| 226 | + return nil, "", err |
| 227 | + } |
| 228 | + |
| 229 | + tmpDir, err := os.MkdirTemp("", "deployment-repo-") |
| 230 | + if err != nil { |
| 231 | + return nil, "", fmt.Errorf("failed to create temp dir: %w", err) |
| 232 | + } |
| 233 | + |
| 234 | + repo, err := git.PlainClone(tmpDir, false, cloneOptions) |
| 235 | + if err != nil { |
| 236 | + return nil, tmpDir, fmt.Errorf("failed to clone repository: %w", err) |
| 237 | + } |
| 238 | + |
| 239 | + return repo, tmpDir, nil |
| 240 | +} |
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