Golang Setup Examples

Example #1

File: cache.go Project: albrow/glide

// CacheClear clears the Glide cache
func CacheClear() {
	l := cache.Location()

	err := os.RemoveAll(l)
	if err != nil {
		msg.Die("Unable to clear the cache: %s", err)
	}

	cache.SetupReset()
	cache.Setup()

	msg.Info("Glide cache has been cleared.")
}

Example #2

File: config_wizard.go Project: Zuozuohao/glide

// ConfigWizard reads configuration from a glide.yaml file and attempts to suggest
// improvements. The wizard is interactive.
func ConfigWizard(base string) {
	_, err := gpath.Glide()
	glidefile := gpath.GlideFile
	if err != nil {
		msg.Info("Unable to find a glide.yaml file. Would you like to create one now? Yes (Y) or No (N)")
		bres := msg.PromptUntilYorN()
		if bres {
			// Guess deps
			conf := guessDeps(base, false)
			// Write YAML
			if err := conf.WriteFile(glidefile); err != nil {
				msg.Die("Could not save %s: %s", glidefile, err)
			}
		} else {
			msg.Err("Unable to find configuration file. Please create configuration information to continue.")
		}
	}

	conf := EnsureConfig()

	err = cache.Setup()
	if err != nil {
		msg.Die("Problem setting up cache: %s", err)
	}

	msg.Info("Looking for dependencies to make suggestions on")
	msg.Info("--> Scanning for dependencies not using version ranges")
	msg.Info("--> Scanning for dependencies using commit ids")
	var deps []*cfg.Dependency
	for _, dep := range conf.Imports {
		if wizardLookInto(dep) {
			deps = append(deps, dep)
		}
	}
	for _, dep := range conf.DevImports {
		if wizardLookInto(dep) {
			deps = append(deps, dep)
		}
	}

	msg.Info("Gathering information on each dependency")
	msg.Info("--> This may take a moment. Especially on a codebase with many dependencies")
	msg.Info("--> Gathering release information for dependencies")
	msg.Info("--> Looking for dependency imports where versions are commit ids")
	for _, dep := range deps {
		wizardFindVersions(dep)
	}

	var changes int
	for _, dep := range deps {
		var remote string
		if dep.Repository != "" {
			remote = dep.Repository
		} else {
			remote = "https://" + dep.Name
		}

		// First check, ask if the tag should be used instead of the commit id for it.
		cur := cache.MemCurrent(remote)
		if cur != "" && cur != dep.Reference {
			wizardSugOnce()
			var dres bool
			asked, use, val := wizardOnce("current")
			if !use {
				dres = wizardAskCurrent(cur, dep)
			}
			if !asked {
				as := wizardRemember()
				wizardSetOnce("current", as, dres)
			}

			if asked && use {
				dres = val.(bool)
			}

			if dres {
				msg.Info("Updating %s to use the tag %s instead of commit id %s", dep.Name, cur, dep.Reference)
				dep.Reference = cur
				changes++
			}
		}

		// Second check, if no version is being used and there's a semver release ask about latest.
		memlatest := cache.MemLatest(remote)
		if dep.Reference == "" && memlatest != "" {
			wizardSugOnce()
			var dres bool
			asked, use, val := wizardOnce("latest")
			if !use {
				dres = wizardAskLatest(memlatest, dep)
			}
			if !asked {
				as := wizardRemember()
				wizardSetOnce("latest", as, dres)
			}

			if asked && use {
				dres = val.(bool)
			}

			if dres {
				msg.Info("Updating %s to use the release %s instead of no release", dep.Name, memlatest)
				dep.Reference = memlatest
				changes++
			}
		}

		// Third check, if the version is semver offer to use a range instead.
		sv, err := semver.NewVersion(dep.Reference)
		if err == nil {
			wizardSugOnce()
			var res string
			asked, use, val := wizardOnce("range")
			if !use {
				res = wizardAskRange(sv, dep)
			}
			if !asked {
				as := wizardRemember()
				wizardSetOnce("range", as, res)
			}

			if asked && use {
				res = val.(string)
			}

			if res == "m" {
				r := "^" + sv.String()
				msg.Info("Updating %s to use the range %s instead of commit id %s", dep.Name, r, dep.Reference)
				dep.Reference = r
				changes++
			} else if res == "p" {
				r := "~" + sv.String()
				msg.Info("Updating %s to use the range %s instead of commit id %s", dep.Name, r, dep.Reference)
				dep.Reference = r
				changes++
			}
		}
	}

	if changes > 0 {
		msg.Info("Configuration changes have been made. Would you like to write these")
		msg.Info("changes to your configuration file? Yes (Y) or No (N)")
		dres := msg.PromptUntilYorN()
		if dres {
			msg.Info("Writing updates to configuration file (%s)", glidefile)
			if err := conf.WriteFile(glidefile); err != nil {
				msg.Die("Could not save %s: %s", glidefile, err)
			}
			msg.Info("You can now edit the glide.yaml file.:")
			msg.Info("--> For more information on versions and ranges see https://glide.sh/docs/versions/")
			msg.Info("--> For details on additional metadata see https://glide.sh/docs/glide.yaml/")
		} else {
			msg.Warn("Change not written to configuration file")
		}
	} else {
		msg.Info("No proposed changes found. Have a nice day.")
	}
}