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add githook command, decouple ui survey from comamnd
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| package githook | ||
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| import ( | ||
| "os" | ||
| "path" | ||
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| logy "github.com/apex/log" | ||
| survey "gopkg.in/AlecAivazis/survey.v1" | ||
| ) | ||
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| var ( | ||
| Hooks = []string{ | ||
| "applypatch-msg", | ||
| "commit-msg", | ||
| "post-commit", | ||
| "post-receive", | ||
| "post-update", | ||
| "pre-applypatch", | ||
| "pre-commit", | ||
| "prepare-commit-msg", | ||
| "pre-rebase", | ||
| "update", | ||
| } | ||
| // convention | ||
| repoHookDir = "git_hooks" | ||
| ) | ||
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| // CommandData contains all command related data | ||
| type CommandData struct { | ||
| Path string | ||
| Hooks []string | ||
| } | ||
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| // Githook command to create git hooks | ||
| type Githook struct { | ||
| Path string | ||
| CommandData *CommandData | ||
| } | ||
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| // Option function. | ||
| type Option func(*Githook) | ||
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| // New with the given options. | ||
| func New(options ...Option) *Githook { | ||
| v := &Githook{} | ||
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| for _, o := range options { | ||
| o(v) | ||
| } | ||
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| return v | ||
| } | ||
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| // WithCommandData option. | ||
| func WithCommandData(cd *CommandData) Option { | ||
| return func(g *Githook) { | ||
| g.CommandData = cd | ||
| } | ||
| } | ||
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| // Install will create hard links from local git_hooks to the corresponding git hooks | ||
| func (g *Githook) Install() error { | ||
| for _, h := range g.CommandData.Hooks { | ||
| hookGitPath := path.Join(g.CommandData.Path, ".git", "hooks", h) | ||
| hookRepoPath := path.Join(g.CommandData.Path, repoHookDir, h) | ||
| if !exists(hookGitPath) { | ||
| dir := path.Dir(hookGitPath) | ||
| logy.Debugf("Path '%s' created", dir) | ||
| err := createDirIfNotExist(dir) | ||
| if err != nil { | ||
| logy.WithError(err).Error("Could not create directory") | ||
| } | ||
| } else { | ||
| os.Remove(hookGitPath) | ||
| } | ||
| if exists(hookRepoPath) { | ||
| logy.Debugf("Create symlink old: %s, new: %s", hookGitPath, hookRepoPath) | ||
| err := os.Link(hookRepoPath, hookGitPath) | ||
| if err != nil { | ||
| logy.WithError(err).Errorf("Could not link hook %s", h) | ||
| return err | ||
| } | ||
| logy.Debugf("hook '%s' installed", h) | ||
| } else { | ||
| logy.Infof("template for hook '%s' could not be found in %s", h, path.Join(g.CommandData.Path, repoHookDir)) | ||
| } | ||
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| } | ||
| return nil | ||
| } | ||
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| // getQuestions return all required prompts | ||
| func (g *Githook) getQuestions() []*survey.Question { | ||
| qs := []*survey.Question{ | ||
| { | ||
| Name: "Path", | ||
| Validate: survey.Required, | ||
| Prompt: &survey.Input{ | ||
| Message: "What is the destination?", | ||
| Default: ".", | ||
| }, | ||
| }, | ||
| { | ||
| Name: "Hooks", | ||
| Validate: survey.Required, | ||
| Prompt: &survey.MultiSelect{ | ||
| Message: "Which hooks should be installed?", | ||
| Options: Hooks, | ||
| }, | ||
| }, | ||
| } | ||
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| return qs | ||
| } | ||
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| func (g *Githook) startCommandSurvey() error { | ||
| var cmd = &CommandData{} | ||
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| // start command prompts | ||
| err := survey.Ask(g.getQuestions(), cmd) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| g.CommandData = cmd | ||
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| return nil | ||
| } | ||
|
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| // Run the command | ||
| func (g *Githook) Run() error { | ||
| if g.CommandData == nil { | ||
| err := g.startCommandSurvey() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return g.Install() | ||
| } | ||
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| func exists(name string) bool { | ||
| if _, err := os.Stat(name); err != nil { | ||
| if os.IsNotExist(err) { | ||
| return false | ||
| } | ||
| } | ||
| return true | ||
| } | ||
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| func createDirIfNotExist(dir string) error { | ||
| if _, err := os.Stat(dir); os.IsNotExist(err) { | ||
| err = os.MkdirAll(dir, 0755) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } |
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