close #203 bootstrap ini file if it doesn t exist

Author: groenborg

.phlow

@@ -12,4 +12,4 @@
     service = http://jira.teamsinspace.com:8080
     issue_url = jira
     pipeline_url = http://concourse.bosh.praqma.cloud/teams/main/pipelines/git-phlow
-    delivery_branch_prefix = ready
+    delivery_branch_prefix = ready

plugins/gh.go

@@ -111,6 +111,31 @@ func AuthenticateGitHub(githubBaseURL string, user, token string) (bool, error)
 	return true, nil
 }
 
+//DefaultBranchGitHub ...
+//return the default branch of the repository
+func DefaultBranchGitHub(URL, org, repo, token string) (defaultBranch string, err error) {
+
+	req, _ := http.NewRequest("GET", URL+fmt.Sprintf("/repos/%s/%s", org, repo), nil)
+	q := req.URL.Query()
+	q.Add("access_token", token)
+	req.URL.RawQuery = q.Encode()
+
+	client := http.DefaultClient
+
+	res, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer res.Body.Close()
+
+	re := Repo{}
+	err = json.NewDecoder(res.Body).Decode(&re)
+	if err != nil {
+		return "", err
+	}
+	return re.DefaultBranch, nil
+}
+
 //GetIssues ...
 func (g *GitHubImpl) GetIssues() (issues []Issue, err error) {
 	URL := fmt.Sprintf(g.URLNoEsc(urls.issueURL), g.org, g.repo)
@@ -154,6 +179,7 @@ func (g *GitHubImpl) SetLabel(label string, issue int) (labels []Label, err erro
 	return re, nil
 }
 
+//Deprecated
 //Default ...
 //Get default branch of a GitHub issue
 func (g *GitHubImpl) Default() (defaultBranch string, err error) {

plugins/plugin.go

@@ -15,10 +15,9 @@ type Authorization func(URL, user, pass string) (token string, err error)
 //interface for authentication with external service
 type Authentication func(URL, user, pass string) (authenticated bool, err error)
 
-
-
-
-type DefaultBranch func() (defaultBranch string, err error)
+//DefaultBranch ...
+//interface for getting the default branch of the external service
+type DefaultBranch func(URL, org, repo, token string) (defaultBranch string, err error)
 
 //PhlowLabels ...
 //Map of labels in the phlow

setting/setting.go

@@ -8,6 +8,8 @@ import (
 	"fmt"
 	"reflect"
 	"github.com/go-errors/errors"
+	"github.com/praqma/git-phlow/plugins"
+	"github.com/praqma/git-phlow/githandler"
 )
 
 //Load internals
@@ -107,10 +109,23 @@ func LoadProjectSettings(local, global string, INIBlock string) *ProjectSetting
 			}
 			os.Exit(1)
 		}
+
+		//Try to get default branch otherwise just create the default
+		defaultBranch, err := GetDefaultBranchFromInternalDefault()
+		if err != nil {
+			defaultBranch = internal_default_integration_branch
+		}
+
+		err = BootstrapPhlowConfig(local, defaultBranch)
+		if err != nil {
+			fmt.Println("Could not create a local .phlow config file")
+			os.Exit(1)
+		}
+
 		//return internal default because no other configuration exist and no other is specified by params
 		return &ProjectSetting{
 			Service:              internal_default_service,
-			IntegrationBranch:    internal_default_integration_branch,
+			IntegrationBranch:    defaultBranch,
 			Remote:               internal_default_remote,
 			IssueURL:             internal_default_issue_url,
 			DeliveryBranchPrefix: internal_default_delivery_branch_prefix,
@@ -136,6 +151,26 @@ func LoadProjectSettings(local, global string, INIBlock string) *ProjectSetting
 	return conf
 }
 
+//BootstrapPhlowConfig ...
+//Creates a new .phlow ini file on given location
+func BootstrapPhlowConfig(local, integrationBranch string) error {
+	fmt.Println("No .phlow config found")
+	cfg := ini.Empty()
+	sec, _ := cfg.NewSection("default")
+	sec.Key("remote").SetValue(internal_default_remote)
+	sec.Key("service").SetValue(internal_default_service)
+	sec.Key("integration_branch").SetValue(integrationBranch)
+	sec.Key("issue_url").SetValue(internal_default_issue_url)
+	sec.Key("delivery_branch_prefix").SetValue(internal_default_delivery_branch_prefix)
+
+	err := cfg.SaveTo(local + "/" + ".phlow")
+	if err != nil {
+		return err
+	}
+	fmt.Println("Bootstrapping new .phlow file")
+	return nil
+}
+
 //ValidateLoadedSetting ...
 func ValidateLoadedSetting(setting *ProjectSetting) (error) {
 	r := reflect.ValueOf(setting).Elem()
@@ -203,3 +238,22 @@ func GetLocal() string {
 	}
 	return strings.TrimSpace(absoluteRepoPath)
 }
+
+//GetDefaultBranchFromInternalDefault ...
+//Trying to retrieve the default branch from github
+func GetDefaultBranchFromInternalDefault() (string, error) {
+	git := githandler.Git{Run: executor.RunGit}
+
+	remote, err := git.LSRemote("--get-url", internal_default_remote)
+	if err != nil {
+		return "", err
+	}
+	orgAndRepo := githandler.OrgAndRepo(remote)
+	token, err := git.Config("--get", "phlow.token")
+
+	branch, err := plugins.DefaultBranchGitHub(internal_default_issue_url, orgAndRepo.Organisation, orgAndRepo.Repository, token)
+	if err != nil {
+		return "", err
+	}
+	return branch, nil
+}