github.com/goguardian/glide@v0.0.0-20160311175917-84255172e124/action/install.go (about) 1 package action 2 3 import ( 4 "io/ioutil" 5 "path/filepath" 6 7 "github.com/Masterminds/glide/cfg" 8 "github.com/Masterminds/glide/dependency" 9 "github.com/Masterminds/glide/msg" 10 gpath "github.com/Masterminds/glide/path" 11 "github.com/Masterminds/glide/repo" 12 ) 13 14 // Install installs a vendor directory based on an existing Glide configuration. 15 func Install(installer *repo.Installer) { 16 base := "." 17 // Ensure GOPATH 18 EnsureGopath() 19 EnsureVendorDir() 20 conf := EnsureConfig() 21 22 // Lockfile exists 23 if !gpath.HasLock(base) { 24 msg.Info("Lock file (glide.lock) does not exist. Performing update.") 25 Update(installer, false) 26 return 27 } 28 // Load lockfile 29 lock, err := LoadLockfile(base, conf) 30 if err != nil { 31 msg.Die("Could not load lockfile.") 32 } 33 34 // Delete unused packages 35 if installer.DeleteUnused { 36 // It's unclear whether this should operate off of the lock, or off 37 // of the glide.yaml file. I'd think that doing this based on the 38 // lock would be much more reliable. 39 dependency.DeleteUnused(conf) 40 } 41 42 // Install 43 newConf, err := installer.Install(lock, conf) 44 if err != nil { 45 msg.Die("Failed to install: %s", err) 46 } 47 48 msg.Info("Setting references.") 49 50 // Set reference 51 if err := repo.SetReference(newConf); err != nil { 52 msg.Err("Failed to set references: %s (Skip to cleanup)", err) 53 } 54 55 // VendoredCleanup. This should ONLY be run if UpdateVendored was specified. 56 if installer.UpdateVendored { 57 repo.VendoredCleanup(newConf) 58 } 59 } 60 61 // LoadLockfile loads the contents of a glide.lock file. 62 // 63 // TODO: This should go in another package. 64 func LoadLockfile(base string, conf *cfg.Config) (*cfg.Lockfile, error) { 65 yml, err := ioutil.ReadFile(filepath.Join(base, gpath.LockFile)) 66 if err != nil { 67 return nil, err 68 } 69 lock, err := cfg.LockfileFromYaml(yml) 70 if err != nil { 71 return nil, err 72 } 73 74 hash, err := conf.Hash() 75 if err != nil { 76 return nil, err 77 } 78 79 if hash != lock.Hash { 80 msg.Warn("Lock file may be out of date. Hash check of YAML failed. You may need to run 'update'") 81 } 82 83 return lock, nil 84 }