github.com/criteo/command-launcher@v0.0.0-20230407142452-fb616f546e98/internal/repository/default-pkg-repository.go (about)

     1  package repository
     2  
     3  import (
     4  	"fmt"
     5  	"os"
     6  	"path/filepath"
     7  
     8  	"github.com/criteo/command-launcher/internal/command"
     9  	log "github.com/sirupsen/logrus"
    10  )
    11  
    12  const (
    13  	FILE_REGISTRY = "repoIndex.json"
    14  )
    15  
    16  type defaultPackageRepository struct {
    17  	ID        string
    18  	RepoDir   string
    19  	repoIndex RepoIndex
    20  }
    21  
    22  func newDefaultPackageRepository(id string, repoDirname string, index RepoIndex) *defaultPackageRepository {
    23  	return &defaultPackageRepository{
    24  		ID:        id,
    25  		RepoDir:   repoDirname,
    26  		repoIndex: index,
    27  	}
    28  }
    29  
    30  func (repo *defaultPackageRepository) load() error {
    31  	_, err := os.Stat(repo.RepoDir)
    32  	if os.IsNotExist(err) {
    33  		err := os.MkdirAll(repo.RepoDir, 0755)
    34  		if err != nil {
    35  			return fmt.Errorf("cannot create the repo folder (%v)", err)
    36  		}
    37  	}
    38  
    39  	if err = repo.repoIndex.Load(repo.RepoDir); err != nil {
    40  		return fmt.Errorf("cannot load the packages: %v", err)
    41  	}
    42  
    43  	log.Debugf("Commands loaded: %v", func() []string {
    44  		names := []string{}
    45  		for _, cmd := range repo.repoIndex.AllCommands() {
    46  			name := fmt.Sprintf("%s.%s", cmd.Group(), cmd.Name())
    47  			names = append(names, name)
    48  		}
    49  		return names
    50  	}())
    51  
    52  	return nil
    53  }
    54  
    55  func (repo defaultPackageRepository) Name() string {
    56  	return repo.ID
    57  }
    58  
    59  func (repo *defaultPackageRepository) Install(pkg command.Package) error {
    60  	if pkg.Name() == "" {
    61  		return fmt.Errorf("invalid package manifest: empty package name, please make sure manifest.mf contains a 'pkgName'")
    62  	}
    63  
    64  	pkgDir := filepath.Join(repo.RepoDir, pkg.Name())
    65  	err := os.MkdirAll(pkgDir, 0755)
    66  	if err != nil {
    67  		return fmt.Errorf("cannot create the commmand package folder (%v)", err)
    68  	}
    69  
    70  	_, err = pkg.InstallTo(pkgDir)
    71  	if err != nil {
    72  		return fmt.Errorf("cannot install the command package %s: %v", pkg.Name(), err)
    73  	}
    74  
    75  	err = repo.repoIndex.Add(pkg, repo.RepoDir, pkg.Name())
    76  	if err != nil {
    77  		return fmt.Errorf("cannot add the command package %s: %v", pkg.Name(), err)
    78  	}
    79  
    80  	return nil
    81  }
    82  
    83  func (repo *defaultPackageRepository) Uninstall(name string) error {
    84  	err := repo.repoIndex.Remove(name, repo.RepoDir)
    85  	if err != nil {
    86  		return fmt.Errorf("cannot remove the command %s: %v", name, err)
    87  	}
    88  
    89  	err = os.RemoveAll(filepath.Join(repo.RepoDir, name))
    90  	if err != nil {
    91  		return fmt.Errorf("cannot remove the command folder %v", err)
    92  	}
    93  
    94  	return nil
    95  }
    96  
    97  func (repo *defaultPackageRepository) Update(pkg command.Package) error {
    98  	err := repo.Uninstall(pkg.Name())
    99  	if err != nil {
   100  		return err
   101  	}
   102  
   103  	return repo.Install(pkg)
   104  }
   105  
   106  func (repo *defaultPackageRepository) InstalledPackages() []command.PackageManifest {
   107  	return repo.repoIndex.AllPackages()
   108  }
   109  
   110  func (repo *defaultPackageRepository) InstalledCommands() []command.Command {
   111  	return repo.repoIndex.AllCommands()
   112  }
   113  
   114  func (repo *defaultPackageRepository) InstalledGroupCommands() []command.Command {
   115  	return repo.repoIndex.GroupCommands()
   116  }
   117  
   118  func (repo *defaultPackageRepository) InstalledExecutableCommands() []command.Command {
   119  	return repo.repoIndex.ExecutableCommands()
   120  }
   121  
   122  func (repo *defaultPackageRepository) InstalledSystemCommands() SystemCommands {
   123  	return SystemCommands{
   124  		Login:   repo.repoIndex.SystemLoginCommand(),
   125  		Metrics: repo.repoIndex.SystemMetricsCommand(),
   126  	}
   127  }
   128  
   129  func (repo *defaultPackageRepository) Package(name string) (command.PackageManifest, error) {
   130  	return repo.repoIndex.Package(name)
   131  }
   132  
   133  func (repo *defaultPackageRepository) Command(pkg string, group string, name string) (command.Command, error) {
   134  	cmd, err := repo.repoIndex.Command(pkg, group, name)
   135  	if err != nil {
   136  		return nil, fmt.Errorf("cannot find the command %s", name)
   137  	}
   138  	return cmd, nil
   139  }
   140  
   141  func (repo *defaultPackageRepository) RepositoryFolder() (string, error) {
   142  	return repo.RepoDir, nil
   143  }