func getWizard(dep *cfg.Dependency) {
var remote string
if dep.Repository != "" {
remote = dep.Repository
} else {
remote = "https://" + dep.Name
}
// Lookup dependency info and store in cache.
msg.Info("--> Gathering release information for %s", dep.Name)
wizardFindVersions(dep)
memlatest := cache.MemLatest(remote)
if memlatest != "" {
dres := wizardAskLatest(memlatest, dep)
if dres {
dep.Reference = memlatest
sv, err := semver.NewVersion(dep.Reference)
if err == nil {
res := wizardAskRange(sv, dep)
if res == "m" {
dep.Reference = "^" + sv.String()
} else if res == "p" {
dep.Reference = "~" + sv.String()
}
}
}
}
}
// VcsExists checks if the directory has a local VCS checkout.
func VcsExists(dep *cfg.Dependency, dest string) bool {
repo, err := dep.GetRepo(dest)
if err != nil {
return false
}
return repo.CheckLocal()
}
// VcsLastCommit gets the last commit ID from the given dependency.
func VcsLastCommit(dep *cfg.Dependency, vend string) (string, error) {
cwd := filepath.Join(vend, filepath.FromSlash(dep.Name))
repo, err := dep.GetRepo(cwd)
if err != nil {
return "", err
}
if repo.CheckLocal() == false {
return "", fmt.Errorf("%s is not a VCS repo\n", dep.Name)
}
version, err := repo.Version()
if err != nil {
return "", err
}
return version, nil
}
// VcsGet figures out how to fetch a dependency, and then gets it.
//
// VcsGet installs into the cache.
func VcsGet(dep *cfg.Dependency) error {
key, err := cp.Key(dep.Remote())
if err != nil {
msg.Die("Cache key generation error: %s", err)
}
location := cp.Location()
d := filepath.Join(location, "src", key)
repo, err := dep.GetRepo(d)
if err != nil {
return err
}
// If the directory does not exist this is a first cache.
if _, err = os.Stat(d); os.IsNotExist(err) {
msg.Debug("Adding %s to the cache for the first time", dep.Name)
err = repo.Get()
if err != nil {
return err
}
branch := findCurrentBranch(repo)
if branch != "" {
msg.Debug("Saving default branch for %s", repo.Remote())
c := cp.RepoInfo{DefaultBranch: branch}
err = cp.SaveRepoData(key, c)
if err == cp.ErrCacheDisabled {
msg.Debug("Unable to cache default branch because caching is disabled")
} else if err != nil {
msg.Debug("Error saving %s to cache. Error: %s", repo.Remote(), err)
}
}
} else {
msg.Debug("Updating %s in the cache", dep.Name)
err = repo.Update()
if err != nil {
return err
}
}
return nil
}
func TestAddPkgsToConfig(t *testing.T) {
// Route output to discard so it's not displayed with the test output.
o := msg.Default.Stderr
msg.Default.Stderr = ioutil.Discard
conf := new(cfg.Config)
dep := new(cfg.Dependency)
dep.Name = "github.com/Masterminds/cookoo"
dep.Subpackages = append(dep.Subpackages, "convert")
conf.Imports = append(conf.Imports, dep)
names := []string{
"github.com/Masterminds/cookoo/fmt",
"github.com/Masterminds/semver",
}
addPkgsToConfig(conf, names, false, true)
if !conf.HasDependency("github.com/Masterminds/semver") {
t.Error("addPkgsToConfig failed to add github.com/Masterminds/semver")
}
d := conf.Imports.Get("github.com/Masterminds/cookoo")
found := false
for _, s := range d.Subpackages {
if s == "fmt" {
found = true
}
}
if !found {
t.Error("addPkgsToConfig failed to add subpackage to existing import")
}
// Restore messaging to original location
msg.Default.Stderr = o
}
func determineDependency(v, dep *cfg.Dependency, dest string) *cfg.Dependency {
repo, err := v.GetRepo(dest)
if err != nil {
singleWarn("Unable to access repo for %s\n", v.Name)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
}
vIsRef := repo.IsReference(v.Reference)
depIsRef := repo.IsReference(dep.Reference)
// Both are references and they are different ones.
if vIsRef && depIsRef {
singleWarn("Conflict: %s ref is %s, but also asked for %s\n", v.Name, v.Reference, dep.Reference)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
} else if vIsRef {
// The current one is a reference and the suggestion is a SemVer constraint.
con, err := semver.NewConstraint(dep.Reference)
if err != nil {
singleWarn("Version issue for %s: '%s' is neither a reference or semantic version constraint\n", dep.Name, dep.Reference)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
}
ver, err := semver.NewVersion(v.Reference)
if err != nil {
// The existing version is not a semantic version.
singleWarn("Conflict: %s version is %s, but also asked for %s\n", v.Name, v.Reference, dep.Reference)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
}
if con.Check(ver) {
singleInfo("Keeping %s %s because it fits constraint '%s'", v.Name, v.Reference, dep.Reference)
return v
}
singleWarn("Conflict: %s version is %s but does not meet constraint '%s'\n", v.Name, v.Reference, dep.Reference)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
} else if depIsRef {
con, err := semver.NewConstraint(v.Reference)
if err != nil {
singleWarn("Version issue for %s: '%s' is neither a reference or semantic version constraint\n", v.Name, v.Reference)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
}
ver, err := semver.NewVersion(dep.Reference)
if err != nil {
singleWarn("Conflict: %s version is %s, but also asked for %s\n", v.Name, v.Reference, dep.Reference)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
}
if con.Check(ver) {
v.Reference = dep.Reference
singleInfo("Using %s %s because it fits constraint '%s'", v.Name, v.Reference, v.Reference)
return v
}
singleWarn("Conflict: %s semantic version constraint is %s but '%s' does not meet the constraint\n", v.Name, v.Reference, v.Reference)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
}
// Neither is a vcs reference and both could be semantic version
// constraints that are different.
_, err = semver.NewConstraint(dep.Reference)
if err != nil {
// dd.Reference is not a reference or a valid constraint.
singleWarn("Version %s %s is not a reference or valid semantic version constraint\n", dep.Name, dep.Reference)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
}
_, err = semver.NewConstraint(v.Reference)
if err != nil {
// existing.Reference is not a reference or a valid constraint.
// We really should never end up here.
singleWarn("Version %s %s is not a reference or valid semantic version constraint\n", v.Name, v.Reference)
v.Reference = dep.Reference
v.Pin = ""
singleInfo("Using %s %s because it is a valid version", v.Name, v.Reference)
return v
}
// Both versions are constraints. Try to merge them.
// If either comparison has an || skip merging. That's complicated.
ddor := strings.Index(dep.Reference, "||")
eor := strings.Index(v.Reference, "||")
if ddor == -1 && eor == -1 {
// Add the comparisons together.
newRef := v.Reference + ", " + dep.Reference
v.Reference = newRef
v.Pin = ""
singleInfo("Combining %s semantic version constraints %s and %s", v.Name, v.Reference, dep.Reference)
return v
}
singleWarn("Conflict: %s version is %s, but also asked for %s\n", v.Name, v.Reference, dep.Reference)
singleInfo("Keeping %s %s", v.Name, v.Reference)
return v
}
// VcsGet figures out how to fetch a dependency, and then gets it.
//
// VcsGet installs into the dest.
func VcsGet(dep *cfg.Dependency, dest, home string, cache, cacheGopath, useGopath bool) error {
// When not skipping the $GOPATH look in it for a copy of the package
if useGopath {
// Check if the $GOPATH has a viable version to use and if so copy to vendor
gps := gpath.Gopaths()
for _, p := range gps {
d := filepath.Join(p, "src", dep.Name)
if _, err := os.Stat(d); err == nil {
empty, err := gpath.IsDirectoryEmpty(d)
if empty || err != nil {
continue
}
repo, err := dep.GetRepo(d)
if err != nil {
continue
}
// Dirty repos have uncomitted changes.
if repo.IsDirty() {
continue
}
// Having found a repo we copy it to vendor and update it.
msg.Info("Copying package %s from the GOPATH.", dep.Name)
msg.Debug("Found %s in GOPATH at %s. Copying to %s", dep.Name, d, dest)
err = gpath.CopyDir(d, dest)
if err != nil {
return err
}
// Update the repo in the vendor directory
msg.Debug("Updating %s, now in the vendor path at %s", dep.Name, dest)
repo, err = dep.GetRepo(dest)
if err != nil {
return err
}
err = repo.Update()
if err != nil {
return err
}
// If there is no reference set on the dep we try to checkout
// the default branch.
if dep.Reference == "" {
db := defaultBranch(repo, home)
if db != "" {
err = repo.UpdateVersion(db)
if err != nil && msg.Default.IsDebugging {
msg.Debug("Attempting to set the version on %s to %s failed. Error %s", dep.Name, db, err)
}
}
}
return nil
}
}
}
// When opting in to cache in the GOPATH attempt to do put a copy there.
if cacheGopath {
// Since we didn't find an existing copy in the GOPATHs try to clone there.
gp := gpath.Gopath()
if gp != "" {
d := filepath.Join(gp, "src", dep.Name)
if _, err := os.Stat(d); os.IsNotExist(err) {
// Empty directory so we checkout out the code here.
msg.Debug("Retrieving %s to %s before copying to vendor", dep.Name, d)
repo, err := dep.GetRepo(d)
if err != nil {
return err
}
repo.Get()
branch := findCurrentBranch(repo)
if branch != "" {
// we know the default branch so we can store it in the cache
var loc string
if dep.Repository != "" {
loc = dep.Repository
} else {
loc = "https://" + dep.Name
}
key, err := cacheCreateKey(loc)
if err == nil {
msg.Debug("Saving default branch for %s", repo.Remote())
c := cacheRepoInfo{DefaultBranch: branch}
err = saveCacheRepoData(key, c, home)
if msg.Default.IsDebugging && err == errCacheDisabled {
msg.Debug("Unable to cache default branch because caching is disabled")
}
}
}
msg.Debug("Copying %s from GOPATH at %s to %s", dep.Name, d, dest)
err = gpath.CopyDir(d, dest)
if err != nil {
return err
}
return nil
}
}
}
// If opting in to caching attempt to put it in the cache folder
if cache {
// Check if the cache has a viable version and try to use that.
var loc string
if dep.Repository != "" {
loc = dep.Repository
} else {
loc = "https://" + dep.Name
}
key, err := cacheCreateKey(loc)
if err == nil {
d := filepath.Join(home, "cache", "src", key)
repo, err := dep.GetRepo(d)
if err != nil {
return err
}
// If the directory does not exist this is a first cache.
if _, err = os.Stat(d); os.IsNotExist(err) {
msg.Debug("Adding %s to the cache for the first time", dep.Name)
err = repo.Get()
if err != nil {
return err
}
branch := findCurrentBranch(repo)
if branch != "" {
// we know the default branch so we can store it in the cache
var loc string
if dep.Repository != "" {
loc = dep.Repository
} else {
loc = "https://" + dep.Name
}
key, err := cacheCreateKey(loc)
if err == nil {
msg.Debug("Saving default branch for %s", repo.Remote())
c := cacheRepoInfo{DefaultBranch: branch}
err = saveCacheRepoData(key, c, home)
if err == errCacheDisabled {
msg.Debug("Unable to cache default branch because caching is disabled")
} else if err != nil {
msg.Debug("Error saving %s to cache. Error: %s", repo.Remote(), err)
}
}
}
} else {
msg.Debug("Updating %s in the cache", dep.Name)
err = repo.Update()
if err != nil {
return err
}
}
msg.Debug("Copying %s from the cache to %s", dep.Name, dest)
err = gpath.CopyDir(d, dest)
if err != nil {
return err
}
return nil
} else {
msg.Warn("Cache key generation error: %s", err)
}
}
// If unable to cache pull directly into the vendor/ directory.
repo, err := dep.GetRepo(dest)
if err != nil {
return err
}
gerr := repo.Get()
// Attempt to cache the default branch
branch := findCurrentBranch(repo)
if branch != "" {
// we know the default branch so we can store it in the cache
var loc string
if dep.Repository != "" {
loc = dep.Repository
} else {
loc = "https://" + dep.Name
}
key, err := cacheCreateKey(loc)
if err == nil {
msg.Debug("Saving default branch for %s", repo.Remote())
c := cacheRepoInfo{DefaultBranch: branch}
err = saveCacheRepoData(key, c, home)
if err == errCacheDisabled {
msg.Debug("Unable to cache default branch because caching is disabled")
} else if err != nil {
msg.Debug("Error saving %s to cache - Error: %s", repo.Remote(), err)
}
}
}
return gerr
}
// VcsUpdate updates to a particular checkout based on the VCS setting.
func VcsUpdate(dep *cfg.Dependency, dest, home string, cache, cacheGopath, useGopath, force, updateVendored bool) error {
// If the dependency has already been pinned we can skip it. This is a
// faster path so we don't need to resolve it again.
if dep.Pin != "" {
msg.Debug("Dependency %s has already been pinned. Fetching updates skipped.", dep.Name)
return nil
}
msg.Info("Fetching updates for %s.\n", dep.Name)
if filterArchOs(dep) {
msg.Info("%s is not used for %s/%s.\n", dep.Name, runtime.GOOS, runtime.GOARCH)
return nil
}
// If destination doesn't exist we need to perform an initial checkout.
if _, err := os.Stat(dest); os.IsNotExist(err) {
if err = VcsGet(dep, dest, home, cache, cacheGopath, useGopath); err != nil {
msg.Warn("Unable to checkout %s\n", dep.Name)
return err
}
} else {
// At this point we have a directory for the package.
// When the directory is not empty and has no VCS directory it's
// a vendored files situation.
empty, err := gpath.IsDirectoryEmpty(dest)
if err != nil {
return err
}
_, err = v.DetectVcsFromFS(dest)
if updateVendored == false && empty == false && err == v.ErrCannotDetectVCS {
msg.Warn("%s appears to be a vendored package. Unable to update. Consider the '--update-vendored' flag.\n", dep.Name)
} else {
if updateVendored == true && empty == false && err == v.ErrCannotDetectVCS {
// A vendored package, no repo, and updating the vendored packages
// has been opted into.
msg.Info("%s is a vendored package. Updating.", dep.Name)
err = os.RemoveAll(dest)
if err != nil {
msg.Error("Unable to update vendored dependency %s.\n", dep.Name)
return err
} else {
dep.UpdateAsVendored = true
}
if err = VcsGet(dep, dest, home, cache, cacheGopath, useGopath); err != nil {
msg.Warn("Unable to checkout %s\n", dep.Name)
return err
}
return nil
}
repo, err := dep.GetRepo(dest)
// Tried to checkout a repo to a path that does not work. Either the
// type or endpoint has changed. Force is being passed in so the old
// location can be removed and replaced with the new one.
// Warning, any changes in the old location will be deleted.
// TODO: Put dirty checking in on the existing local checkout.
if (err == v.ErrWrongVCS || err == v.ErrWrongRemote) && force == true {
var newRemote string
if len(dep.Repository) > 0 {
newRemote = dep.Repository
} else {
newRemote = "https://" + dep.Name
}
msg.Warn("Replacing %s with contents from %s\n", dep.Name, newRemote)
rerr := os.RemoveAll(dest)
if rerr != nil {
return rerr
}
if err = VcsGet(dep, dest, home, cache, cacheGopath, useGopath); err != nil {
msg.Warn("Unable to checkout %s\n", dep.Name)
return err
}
} else if err != nil {
return err
} else if repo.IsDirty() {
return fmt.Errorf("%s contains uncommited changes. Skipping update", dep.Name)
} else {
// Check if the current version is a tag or commit id. If it is
// and that version is already checked out we can skip updating
// which is faster than going out to the Internet to perform
// an update.
if dep.Reference != "" {
version, err := repo.Version()
if err != nil {
return err
}
ib, err := isBranch(dep.Reference, repo)
if err != nil {
return err
}
// If the current version equals the ref and it's not a
// branch it's a tag or commit id so we can skip
// performing an update.
if version == dep.Reference && !ib {
msg.Info("%s is already set to version %s. Skipping update.", dep.Name, dep.Reference)
return nil
}
}
if err := repo.Update(); err != nil {
msg.Warn("Download failed.\n")
return err
}
}
}
}
return nil
}
// VcsVersion set the VCS version for a checkout.
func VcsVersion(dep *cfg.Dependency, vend string) error {
// If the dependency has already been pinned we can skip it. This is a
// faster path so we don't need to resolve it again.
if dep.Pin != "" {
msg.Debug("Dependency %s has already been pinned. Setting version skipped.", dep.Name)
return nil
}
cwd := filepath.Join(vend, dep.Name)
// If there is no refernece configured there is nothing to set.
if dep.Reference == "" {
// Before exiting update the pinned version
repo, err := dep.GetRepo(cwd)
if err != nil {
return err
}
dep.Pin, err = repo.Version()
if err != nil {
return err
}
return nil
}
// When the directory is not empty and has no VCS directory it's
// a vendored files situation.
empty, err := gpath.IsDirectoryEmpty(cwd)
if err != nil {
return err
}
_, err = v.DetectVcsFromFS(cwd)
if empty == false && err == v.ErrCannotDetectVCS {
msg.Warn("%s appears to be a vendored package. Unable to set new version. Consider the '--update-vendored' flag.\n", dep.Name)
} else {
repo, err := dep.GetRepo(cwd)
if err != nil {
return err
}
ver := dep.Reference
// Referenes in Git can begin with a ^ which is similar to semver.
// If there is a ^ prefix we assume it's a semver constraint rather than
// part of the git/VCS commit id.
if repo.IsReference(ver) && !strings.HasPrefix(ver, "^") {
msg.Info("Setting version for %s to %s.\n", dep.Name, ver)
} else {
// Create the constraing first to make sure it's valid before
// working on the repo.
constraint, err := semver.NewConstraint(ver)
// Make sure the constriant is valid. At this point it's not a valid
// reference so if it's not a valid constrint we can exit early.
if err != nil {
msg.Warn("The reference '%s' is not valid\n", ver)
return err
}
// Get the tags and branches (in that order)
refs, err := getAllVcsRefs(repo)
if err != nil {
return err
}
// Convert and filter the list to semver.Version instances
semvers := getSemVers(refs)
// Sort semver list
sort.Sort(sort.Reverse(semver.Collection(semvers)))
found := false
for _, v := range semvers {
if constraint.Check(v) {
found = true
// If the constrint passes get the original reference
ver = v.Original()
break
}
}
if found {
msg.Info("Detected semantic version. Setting version for %s to %s.\n", dep.Name, ver)
} else {
msg.Warn("Unable to find semantic version for constraint %s %s\n", dep.Name, ver)
}
}
if err := repo.UpdateVersion(ver); err != nil {
msg.Error("Failed to set version to %s: %s\n", dep.Reference, err)
return err
}
dep.Pin, err = repo.Version()
if err != nil {
return err
}
}
return nil
}
// addPkgsToConfig adds the given packages to the config file.
//
// Along the way it:
// - ensures that this package is not in the ignore list
// - checks to see if this is already in the dependency list.
// - splits version of of package name and adds the version attribute
// - separates repo from packages
// - sets up insecure repo URLs where necessary
// - generates a list of subpackages
func addPkgsToConfig(conf *cfg.Config, names []string, insecure, nonInteract, testDeps bool) (int, error) {
if len(names) == 1 {
msg.Info("Preparing to install %d package.", len(names))
} else {
msg.Info("Preparing to install %d packages.", len(names))
}
numAdded := 0
for _, name := range names {
var version string
parts := strings.Split(name, "#")
if len(parts) > 1 {
name = parts[0]
version = parts[1]
}
msg.Info("Attempting to get package %s", name)
root, subpkg := util.NormalizeName(name)
if len(root) == 0 {
return 0, fmt.Errorf("Package name is required for %q.", name)
}
if conf.HasDependency(root) {
var moved bool
var dep *cfg.Dependency
// Move from DevImports to Imports
if !testDeps && !conf.Imports.Has(root) && conf.DevImports.Has(root) {
dep = conf.DevImports.Get(root)
conf.Imports = append(conf.Imports, dep)
conf.DevImports = conf.DevImports.Remove(root)
moved = true
numAdded++
msg.Info("--> Moving %s from testImport to import", root)
} else if testDeps && conf.Imports.Has(root) {
msg.Warn("--> Test dependency %s already listed as import", root)
}
// Check if the subpackage is present.
if subpkg != "" {
if dep == nil {
dep = conf.Imports.Get(root)
if dep == nil && testDeps {
dep = conf.DevImports.Get(root)
}
}
if dep.HasSubpackage(subpkg) {
if !moved {
msg.Warn("--> Package %q is already in glide.yaml. Skipping", name)
}
} else {
dep.Subpackages = append(dep.Subpackages, subpkg)
msg.Info("--> Adding sub-package %s to existing import %s", subpkg, root)
numAdded++
}
} else if !moved {
msg.Warn("--> Package %q is already in glide.yaml. Skipping", root)
}
continue
}
if conf.HasIgnore(root) {
msg.Warn("--> Package %q is set to be ignored in glide.yaml. Skipping", root)
continue
}
dep := &cfg.Dependency{
Name: root,
}
// When retriving from an insecure location set the repo to the
// insecure location.
if insecure {
dep.Repository = "http://" + root
}
if version != "" {
dep.Reference = version
} else if !nonInteract {
getWizard(dep)
}
if len(subpkg) > 0 {
dep.Subpackages = []string{subpkg}
}
if dep.Reference != "" {
msg.Info("--> Adding %s to your configuration with the version %s", dep.Name, dep.Reference)
} else {
msg.Info("--> Adding %s to your configuration", dep.Name)
}
if testDeps {
conf.DevImports = append(conf.DevImports, dep)
} else {
conf.Imports = append(conf.Imports, dep)
}
numAdded++
}
return numAdded, nil
}
func wizardFindVersions(d *cfg.Dependency) {
l := cache.Location()
remote := d.Remote()
key, err := cache.Key(remote)
if err != nil {
msg.Debug("Problem generating cache key for %s: %s", remote, err)
return
}
local := filepath.Join(l, "src", key)
repo, err := vcs.NewRepo(remote, local)
if err != nil {
msg.Debug("Problem getting repo instance: %s", err)
return
}
var useLocal bool
if _, err = os.Stat(local); err == nil {
useLocal = true
}
// Git endpoints allow for querying without fetching the codebase locally.
// We try that first to avoid fetching right away. Is this premature
// optimization?
cc := true
if !useLocal && repo.Vcs() == vcs.Git {
out, err2 := exec.Command("git", "ls-remote", remote).CombinedOutput()
if err2 == nil {
cache.MemTouch(remote)
cc = false
lines := strings.Split(string(out), "\n")
for _, i := range lines {
ti := strings.TrimSpace(i)
if found := createGitParseVersion.FindString(ti); found != "" {
tg := strings.TrimPrefix(strings.TrimSuffix(found, "^{}"), "tags/")
cache.MemPut(remote, tg)
if d.Reference != "" && strings.HasPrefix(ti, d.Reference) {
cache.MemSetCurrent(remote, tg)
}
}
}
}
}
if cc {
cache.Lock(key)
cache.MemTouch(remote)
if _, err = os.Stat(local); os.IsNotExist(err) {
repo.Get()
branch := findCurrentBranch(repo)
c := cache.RepoInfo{DefaultBranch: branch}
err = cache.SaveRepoData(key, c)
if err != nil {
msg.Debug("Error saving cache repo details: %s", err)
}
} else {
repo.Update()
}
tgs, err := repo.Tags()
if err != nil {
msg.Debug("Problem getting tags: %s", err)
} else {
for _, v := range tgs {
cache.MemPut(remote, v)
}
}
if d.Reference != "" && repo.IsReference(d.Reference) {
tgs, err = repo.TagsFromCommit(d.Reference)
if err != nil {
msg.Debug("Problem getting tags for commit: %s", err)
} else {
if len(tgs) > 0 {
for _, v := range tgs {
if !(repo.Vcs() == vcs.Hg && v == "tip") {
cache.MemSetCurrent(remote, v)
}
}
}
}
}
cache.Unlock(key)
}
}
// VcsUpdate updates to a particular checkout based on the VCS setting.
func VcsUpdate(dep *cfg.Dependency, force bool, updated *UpdateTracker) error {
// If the dependency has already been pinned we can skip it. This is a
// faster path so we don't need to resolve it again.
if dep.Pin != "" {
msg.Debug("Dependency %s has already been pinned. Fetching updates skipped.", dep.Name)
return nil
}
if updated.Check(dep.Name) {
msg.Debug("%s was already updated, skipping.", dep.Name)
return nil
}
updated.Add(dep.Name)
if filterArchOs(dep) {
msg.Info("%s is not used for %s/%s.\n", dep.Name, runtime.GOOS, runtime.GOARCH)
return nil
}
key, err := cp.Key(dep.Remote())
if err != nil {
msg.Die("Cache key generation error: %s", err)
}
location := cp.Location()
dest := filepath.Join(location, "src", key)
// If destination doesn't exist we need to perform an initial checkout.
if _, err := os.Stat(dest); os.IsNotExist(err) {
msg.Info("--> Fetching %s.", dep.Name)
if err = VcsGet(dep); err != nil {
msg.Warn("Unable to checkout %s\n", dep.Name)
return err
}
} else {
// At this point we have a directory for the package.
msg.Info("--> Fetching updates for %s.", dep.Name)
// When the directory is not empty and has no VCS directory it's
// a vendored files situation.
empty, err := gpath.IsDirectoryEmpty(dest)
if err != nil {
return err
}
_, err = v.DetectVcsFromFS(dest)
if empty == true && err == v.ErrCannotDetectVCS {
msg.Warn("Cached version of %s is an empty directory. Fetching a new copy of the dependency.", dep.Name)
msg.Debug("Removing empty directory %s", dest)
err := os.RemoveAll(dest)
if err != nil {
return err
}
if err = VcsGet(dep); err != nil {
msg.Warn("Unable to checkout %s\n", dep.Name)
return err
}
} else {
repo, err := dep.GetRepo(dest)
// Tried to checkout a repo to a path that does not work. Either the
// type or endpoint has changed. Force is being passed in so the old
// location can be removed and replaced with the new one.
// Warning, any changes in the old location will be deleted.
// TODO: Put dirty checking in on the existing local checkout.
if (err == v.ErrWrongVCS || err == v.ErrWrongRemote) && force == true {
newRemote := dep.Remote()
msg.Warn("Replacing %s with contents from %s\n", dep.Name, newRemote)
rerr := os.RemoveAll(dest)
if rerr != nil {
return rerr
}
if err = VcsGet(dep); err != nil {
msg.Warn("Unable to checkout %s\n", dep.Name)
return err
}
repo, err = dep.GetRepo(dest)
if err != nil {
return err
}
} else if err != nil {
return err
} else if repo.IsDirty() {
return fmt.Errorf("%s contains uncommitted changes. Skipping update", dep.Name)
}
ver := dep.Reference
if ver == "" {
ver = defaultBranch(repo)
}
// Check if the current version is a tag or commit id. If it is
// and that version is already checked out we can skip updating
// which is faster than going out to the Internet to perform
// an update.
if ver != "" {
version, err := repo.Version()
if err != nil {
return err
}
ib, err := isBranch(ver, repo)
if err != nil {
return err
}
// If the current version equals the ref and it's not a
// branch it's a tag or commit id so we can skip
// performing an update.
if version == ver && !ib {
msg.Debug("%s is already set to version %s. Skipping update.", dep.Name, dep.Reference)
return nil
}
}
if err := repo.Update(); err != nil {
msg.Warn("Download failed.\n")
return err
}
}
}
return nil
}