add GetOsReleaseInfo to provisioner to assist in testing; add tests for rpm repo

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>

libmachine/provision/boot2docker.go

@@ -172,6 +172,10 @@ func (provisioner *Boot2DockerProvisioner) SetOsReleaseInfo(info *OsRelease) {
 	provisioner.OsReleaseInfo = info
 }
 
+func (provisioner *Boot2DockerProvisioner) GetOsReleaseInfo() (*OsRelease, error) {
+	return provisioner.OsReleaseInfo, nil
+}
+
 func (provisioner *Boot2DockerProvisioner) Provision(swarmOptions swarm.SwarmOptions, authOptions auth.AuthOptions, engineOptions engine.EngineOptions) error {
 	provisioner.SwarmOptions = swarmOptions
 	provisioner.AuthOptions = authOptions

libmachine/provision/centos_test.go

@@ -0,0 +1,28 @@
+package provision
+
+import (
+	"regexp"
+	"testing"
+)
+
+func TestCentosGenerateYumRepoList(t *testing.T) {
+	info := &OsRelease{
+		Id: "centos",
+	}
+	p := NewCentosProvisioner(nil)
+	p.SetOsReleaseInfo(info)
+
+	buf, err := generateYumRepoList(p)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	m, err := regexp.MatchString(".*centos/7.*", buf.String())
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !m {
+		t.Fatalf("expected match for centos/7")
+	}
+}

libmachine/provision/fedora_test.go

@@ -0,0 +1,28 @@
+package provision
+
+import (
+	"regexp"
+	"testing"
+)
+
+func TestFedoraGenerateYumRepoList(t *testing.T) {
+	info := &OsRelease{
+		Id: "fedora",
+	}
+	p := NewCentosProvisioner(nil)
+	p.SetOsReleaseInfo(info)
+
+	buf, err := generateYumRepoList(p)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	m, err := regexp.MatchString(".*fedora/22.*", buf.String())
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !m {
+		t.Fatalf("expected match for fedora/22")
+	}
+}

libmachine/provision/generic.go

@@ -68,6 +68,10 @@ func (provisioner *GenericProvisioner) SetOsReleaseInfo(info *OsRelease) {
 	provisioner.OsReleaseInfo = info
 }
 
+func (provisioner *GenericProvisioner) GetOsReleaseInfo() (*OsRelease, error) {
+	return provisioner.OsReleaseInfo, nil
+}
+
 func (provisioner *GenericProvisioner) GenerateDockerOptions(dockerPort int) (*DockerOptions, error) {
 	var (
 		engineCfg bytes.Buffer

libmachine/provision/provisioner.go

@@ -56,6 +56,9 @@ type Provisioner interface {
 	// Set the OS Release info depending on how it's represented
 	// internally
 	SetOsReleaseInfo(info *OsRelease)
+
+	// Get the OS Release info for the current provisioner
+	GetOsReleaseInfo() (*OsRelease, error)
 }
 
 // Detection

libmachine/provision/redhat.go

@@ -277,9 +277,15 @@ func (provisioner *RedHatProvisioner) GenerateDockerOptions(dockerPort int) (*Do
 	}, nil
 }
 
-func (provisioner *RedHatProvisioner) ConfigurePackageList() error {
+func generateYumRepoList(provisioner Provisioner) (*bytes.Buffer, error) {
 	packageListInfo := &PackageListInfo{}
-	switch provisioner.OsReleaseId {
+
+	releaseInfo, err := provisioner.GetOsReleaseInfo()
+	if err != nil {
+		return nil, err
+	}
+
+	switch releaseInfo.Id {
 	case "rhel", "centos":
 		// rhel and centos both use the "centos" repo
 		packageListInfo.OsRelease = "centos"
@@ -288,20 +294,31 @@ func (provisioner *RedHatProvisioner) ConfigurePackageList() error {
 		packageListInfo.OsRelease = "fedora"
 		packageListInfo.OsReleaseVersion = "22"
 	default:
-		return ErrUnknownYumOsRelease
+		return nil, ErrUnknownYumOsRelease
 	}
 
 	t, err := template.New("packageList").Parse(packageListTemplate)
 	if err != nil {
-		return err
+		return nil, err
 	}
 
 	var buf bytes.Buffer
 
 	if err := t.Execute(&buf, packageListInfo); err != nil {
+		return nil, err
+	}
+
+	return &buf, nil
+}
+
+func (provisioner *RedHatProvisioner) ConfigurePackageList() error {
+	buf, err := generateYumRepoList(provisioner)
+	if err != nil {
 		return err
 	}
 
+	// we cannot use %q here as it combines the newlines in the formatting
+	// on transport causing yum to not use the repo
 	packageCmd := fmt.Sprintf("echo \"%s\" | sudo tee /etc/yum.repos.d/docker.repo", buf.String())
 	if _, err := provisioner.SSHCommand(packageCmd); err != nil {
 		return err

libmachine/provision/redhat_test.go

@@ -0,0 +1,28 @@
+package provision
+
+import (
+	"regexp"
+	"testing"
+)
+
+func TestRedHatGenerateYumRepoList(t *testing.T) {
+	info := &OsRelease{
+		Id: "rhel",
+	}
+	p := NewRedHatProvisioner(nil)
+	p.SetOsReleaseInfo(info)
+
+	buf, err := generateYumRepoList(p)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	m, err := regexp.MatchString(".*centos/7.*", buf.String())
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !m {
+		t.Fatalf("expected match for centos/7")
+	}
+}