Fix func to determine default login (#29)

only add default login if auth profided or no login entry exist

Reviewed-on: https://codeberg.org/woodpecker-plugins/plugin-docker-buildx/pulls/29
Reviewed-by: qwerty287 <qwerty287@noreply.codeberg.org>

cmd/docker-buildx/config.go

@@ -117,7 +117,7 @@ func settingsFlags(settings *plugin.Settings) []cli.Flag {
 			Name:        "tags",
 			EnvVars:     []string{"PLUGIN_TAG", "PLUGIN_TAGS"},
 			Usage:       "sets repository tags to use for the image",
-			Value:       cli.NewStringSlice([]string{"latest"}...),
+			Value:       cli.NewStringSlice("latest"),
 			FilePath:    ".tags",
 			Destination: &settings.Build.Tags,
 		},

go.mod

@@ -3,10 +3,12 @@ module codeberg.org/woodpecker-plugins/plugin-docker-buildx
 go 1.18
 
 require (
+	codeberg.org/6543/go-yaml2json v0.3.0
 	github.com/coreos/go-semver v0.3.0
 	github.com/drone-plugins/drone-plugin-lib v0.4.0
 	github.com/joho/godotenv v1.4.0
 	github.com/sirupsen/logrus v1.9.0
+	github.com/stretchr/testify v1.8.0
 	github.com/urfave/cli/v2 v2.16.3
 	golang.org/x/lint v0.0.0-20210508222113-6edffad5e616
 	honnef.co/go/tools v0.3.3
@@ -15,10 +17,13 @@ require (
 require (
 	github.com/BurntSushi/toml v1.1.0 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	golang.org/x/exp/typeparams v0.0.0-20220218215828-6cf2b201936e // indirect
 	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
 	golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
 	golang.org/x/tools v0.1.11-0.20220513221640-090b14e8501f // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,3 +1,5 @@
+codeberg.org/6543/go-yaml2json v0.3.0 h1:BlvjmY0Gous8P+rr8aBdgPYnIfUAqFepF8q7Tp0R5t8=
+codeberg.org/6543/go-yaml2json v0.3.0/go.mod h1:mz61q14LWF4ZABrgMEDMmk3t9dPi6zgR1uBh2VKV2RQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/toml v1.1.0 h1:ksErzDEI1khOiGPgpwuI7x2ebx/uXQNw7xJpn9Eq1+I=
 github.com/BurntSushi/toml v1.1.0/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
@@ -27,9 +29,12 @@ github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0
 github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/urfave/cli/v2 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
 github.com/urfave/cli/v2 v2.16.3 h1:gHoFIwpPjoyIMbJp/VFd+/vuD0dAgFK4B6DpEMFJfQk=
 github.com/urfave/cli/v2 v2.16.3/go.mod h1:1CNUng3PtjQMtRzJO4FMXBQvkGtuYRxxiR9xMa7jMwI=
@@ -59,11 +64,13 @@ golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapK
 golang.org/x/tools v0.1.11-0.20220513221640-090b14e8501f h1:OKYpQQVE3DKSc3r3zHVzq46vq5YH7x8xpR3/k9ixmUg=
 golang.org/x/tools v0.1.11-0.20220513221640-090b14e8501f/go.mod h1:SgwaegtQh8clINPpECJMqnxLv9I09HLqnW3RMqW0CA4=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
 honnef.co/go/tools v0.3.3 h1:oDx7VAwstgpYpb3wv0oxiZlxY+foCpRAwY7Vk6XpAgA=
 honnef.co/go/tools v0.3.3/go.mod h1:jzwdWgg7Jdq75wlfblQxO4neNaFFSvgc1tD5Wv8U0Yw=

plugin/impl.go

@@ -84,15 +84,18 @@ func (l Login) anonymous() bool {
 
 // Init initialise plugin settings
 func (p *Plugin) InitSettings() error {
-	if err := json.Unmarshal([]byte(p.settings.LoginsRaw), &p.settings.Logins); err != nil {
+	if p.settings.LoginsRaw != "" {
-		return fmt.Errorf("Could not unmarshal logins: %v", err)
+		if err := json.Unmarshal([]byte(p.settings.LoginsRaw), &p.settings.Logins); err != nil {
+			return fmt.Errorf("Could not unmarshal logins: %v", err)
+		}
 	}
 
 	p.settings.Build.Branch = p.pipeline.Repo.Branch
 	p.settings.Build.Ref = p.pipeline.Commit.Ref
-	if p.settings.DefaultLogin.anonymous() {
+
-		p.settings.Logins = append(p.settings.Logins, p.settings.DefaultLogin)
+	if len(p.settings.Logins) == 0 {
-	} else {
+		p.settings.Logins = []Login{p.settings.DefaultLogin}
+	} else if !p.settings.DefaultLogin.anonymous() {
 		p.settings.Logins = prepend(p.settings.Logins, p.settings.DefaultLogin)
 	}
 

plugin/impl_test.go

@@ -0,0 +1,77 @@
+package plugin
+
+import (
+	"testing"
+
+	"codeberg.org/6543/go-yaml2json"
+	"github.com/stretchr/testify/assert"
+	"github.com/urfave/cli/v2"
+)
+
+var defaultSettings = Settings{
+	Daemon: Daemon{
+		StoragePath: "/var/lib/docker",
+	},
+	Build: Build{
+		Context:    ".",
+		Tags:       *cli.NewStringSlice("latest"),
+		LabelsAuto: true,
+		Pull:       true,
+	},
+	DefaultLogin: Login{
+		Registry: "https://index.docker.io/v1/",
+	},
+	LoginsRaw: "[]",
+	Cleanup:   true,
+}
+
+func TestDefaultLogin(t *testing.T) {
+	s := defaultSettings
+	assert.NoError(t, newSettingsOnly(&s).Validate())
+	if assert.Len(t, s.Logins, 1) {
+		assert.EqualValues(t, defaultSettings.DefaultLogin.Registry, s.Logins[0].Registry)
+	}
+
+	// only use login to auth to registrys
+	loginsRaw, err := yaml2json.Convert([]byte(`
+- registry: https://index.docker.io/v1/
+  username: docker_username
+  password: docker_password
+- registry: https://codeberg.org
+  username: cb_username
+  password: cb_password`))
+	assert.NoError(t, err)
+	s.LoginsRaw = string(loginsRaw)
+	assert.NoError(t, newSettingsOnly(&s).Validate())
+	if assert.Len(t, s.Logins, 2) {
+		assert.EqualValues(t, defaultSettings.DefaultLogin.Registry, s.Logins[0].Registry)
+	}
+
+	// mixed login settings ('logins' and 'username', 'password' are used)
+	s = defaultSettings
+	loginsRaw, err = yaml2json.Convert([]byte(`
+- registry: https://codeberg.org
+  username: cb_username
+  password: cb_password`))
+	assert.NoError(t, err)
+	s.LoginsRaw = string(loginsRaw)
+	s.DefaultLogin.Username = "docker_username"
+	s.DefaultLogin.Password = "docker_password"
+	assert.NoError(t, newSettingsOnly(&s).Validate())
+	if assert.Len(t, s.Logins, 2) {
+		assert.EqualValues(t, defaultSettings.DefaultLogin.Registry, s.Logins[0].Registry)
+	}
+
+	// ignore default registry
+	s = defaultSettings
+	loginsRaw, err = yaml2json.Convert([]byte(`
+- registry: https://codeberg.org
+  username: cb_username
+  password: cb_password`))
+	assert.NoError(t, err)
+	s.LoginsRaw = string(loginsRaw)
+	assert.NoError(t, newSettingsOnly(&s).Validate())
+	if assert.Len(t, s.Logins, 1) {
+		assert.EqualValues(t, "https://codeberg.org", s.Logins[0].Registry)
+	}
+}

plugin/plugin.go

@@ -6,7 +6,7 @@ import (
 
 // Plugin implements drone.Plugin to provide the plugin implementation.
 type Plugin struct {
-	settings Settings
+	settings *Settings
 	pipeline drone.Pipeline
 	network  drone.Network
 }
@@ -14,8 +14,15 @@ type Plugin struct {
 // New initializes a plugin from the given Settings, Pipeline, and Network.
 func New(settings Settings, pipeline drone.Pipeline, network drone.Network) drone.Plugin {
 	return &Plugin{
-		settings: settings,
+		settings: &settings,
 		pipeline: pipeline,
 		network:  network,
 	}
 }
+
+// newSettingsOnly initializes a plugin from the given Settings only.
+func newSettingsOnly(settings *Settings) drone.Plugin {
+	return &Plugin{
+		settings: settings,
+	}
+}