fix: ensure branch has a default value set (#37)

cmd/wp-git-clone/config_test.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/thegeeklab/wp-git-clone/plugin"
+	wp "github.com/thegeeklab/wp-plugin-go/plugin"
+)
+
+func Test_pluginOptions(t *testing.T) {
+	tests := []struct {
+		name string
+		envs map[string]string
+		want string
+	}{
+		{
+			name: "ensure default branch is set",
+			envs: map[string]string{
+				"CI_COMMIT_BRANCH": "",
+			},
+			want: "main",
+		},
+	}
+
+	for _, tt := range tests {
+		for key, value := range tt.envs {
+			t.Setenv(key, value)
+		}
+
+		settings := &plugin.Settings{}
+		options := wp.Options{
+			Name:    "wp-git-clone",
+			Flags:   settingsFlags(settings, wp.FlagsPluginCategory),
+			Execute: func(_ context.Context) error { return nil },
+		}
+
+		got := plugin.New(options, settings)
+
+		_ = got.App.Run([]string{"wp-git-clone"})
+		_ = got.Validate()
+		_ = got.FlagsFromContext()
+
+		assert.EqualValues(t, tt.want, got.Settings.Repo.Branch)
+	}
+}

cmd/wp-git-clone/flags.go

@@ -136,7 +136,6 @@ func settingsFlags(settings *plugin.Settings, category string) []cli.Flag {
 			Name:        "branch",
 			Usage:       "change branch name",
 			EnvVars:     []string{"PLUGIN_BRANCH", "CI_COMMIT_BRANCH", "CI_REPO_DEFAULT_BRANCH"},
-			Value:       "main",
 			Destination: &settings.Repo.Branch,
 			Category:    category,
 		},

go.mod

@@ -5,6 +5,7 @@ go 1.22
 require (
 	github.com/cenkalti/backoff/v4 v4.3.0
 	github.com/rs/zerolog v1.32.0
+	github.com/stretchr/testify v1.9.0
 	github.com/thegeeklab/wp-plugin-go v1.7.1
 	github.com/urfave/cli/v2 v2.27.1
 	golang.org/x/sys v0.19.0
@@ -15,6 +16,7 @@ require (
 	github.com/Masterminds/semver/v3 v3.2.1 // indirect
 	github.com/Masterminds/sprig/v3 v3.2.3 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/google/uuid v1.1.1 // indirect
 	github.com/huandu/xstrings v1.3.3 // indirect
 	github.com/imdario/mergo v0.3.11 // indirect
@@ -23,10 +25,12 @@ require (
 	github.com/mattn/go-isatty v0.0.19 // indirect
 	github.com/mitchellh/copystructure v1.0.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/shopspring/decimal v1.2.0 // indirect
 	github.com/spf13/cast v1.3.1 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
 	golang.org/x/crypto v0.22.0 // indirect
 	golang.org/x/net v0.24.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -91,6 +91,7 @@ golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/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/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=

plugin/impl.go

@@ -48,6 +48,12 @@ func (p *Plugin) run(ctx context.Context) error {
 
 // Validate handles the settings validation of the plugin.
 func (p *Plugin) Validate() error {
+	// This default cannot be set in the cli flag, as the CI_* environment variables
+	// can be set empty, resulting in an empty default value.
+	if p.Settings.Repo.Branch == "" {
+		p.Settings.Repo.Branch = "main"
+	}
+
 	if p.Settings.WorkDir == "" {
 		var err error
 		if p.Settings.WorkDir, err = os.Getwd(); err != nil {

plugin/plugin.go

@@ -37,7 +37,9 @@ type Settings struct {
 func New(options wp.Options, settings *Settings) *Plugin {
 	p := &Plugin{}
 
+	if options.Execute == nil {
 		options.Execute = p.run
+	}
 
 	p.Plugin = wp.New(options)
 	p.Settings = settings