fix(api): keep the empty value for git clone tag parameter

engine/worker/internal/action/builtin_gitclone.go

@@ -87,13 +87,13 @@ func RunGitClone(ctx context.Context, wk workerruntime.Runtime, a sdk.Action, se
 		var err error
 		gitURL, auth, err = vcsStrategy(ctx, wk, wk.Parameters(), secrets)
 		if err != nil {
-			return sdk.Result{}, fmt.Errorf("Could not use VCS Auth Strategy from application: %v", err)
+			return sdk.Result{}, fmt.Errorf("could not use VCS Auth Strategy from application: %v", err)
 		}
 		key = &auth.PrivateKey
 	}
 
 	if gitURL == "" {
-		return sdk.Result{}, fmt.Errorf("Git repository URL is not set. Nothing to perform")
+		return sdk.Result{}, fmt.Errorf("git repository URL is not set. Nothing to perform")
 	}
 
 	//If url is not http(s), a key must be found
@@ -150,7 +150,7 @@ func RunGitClone(ctx context.Context, wk workerruntime.Runtime, a sdk.Action, se
 
 	workdir, err := workerruntime.WorkingDirectory(ctx)
 	if err != nil {
-		return sdk.Result{}, fmt.Errorf("Unable to find current working directory: %v", err)
+		return sdk.Result{}, fmt.Errorf("unable to find current working directory: %v", err)
 	}
 
 	workdirPath := workdir.Name()
@@ -173,6 +173,8 @@ func gitClone(ctx context.Context, w workerruntime.Runtime, params []sdk.Paramet
 
 	//git.LogFunc = log.InfoWithoutCtx
 	//Perform the git clone
+	w.SendLog(ctx, workerruntime.LevelInfo, fmt.Sprintf("cloning repository %s", url))
+
 	userLogCommand, err := git.Clone(url, basedir, dir, auth, clone, output)
 
 	w.SendLog(ctx, workerruntime.LevelInfo, userLogCommand)
@@ -186,7 +188,7 @@ func gitClone(ctx context.Context, w workerruntime.Runtime, params []sdk.Paramet
 	}
 
 	if err != nil {
-		return sdk.Result{}, fmt.Errorf("Unable to git clone: %s", err)
+		return sdk.Result{}, fmt.Errorf("unable to git clone: %s", err)
 	}
 
 	// extract info only if we git clone the same repo as current application linked to the pipeline
@@ -215,7 +217,7 @@ func gitClone(ctx context.Context, w workerruntime.Runtime, params []sdk.Paramet
 	}
 
 	if errTag != nil {
-		return sdk.Result{}, sdk.WithStack(fmt.Errorf("Unable to list tag for getting current version: %v", errTag))
+		return sdk.Result{}, sdk.WithStack(fmt.Errorf("unable to list tag for getting current version: %v", errTag))
 	}
 
 	return sdk.Result{Status: sdk.StatusSuccess, NewVariables: vars}, nil
@@ -277,10 +279,9 @@ func extractInfo(ctx context.Context, w workerruntime.Runtime, basedir, dir stri
 					Value: info.Branch,
 				}
 				res = append(res, gitBranch)
-
 				w.SendLog(ctx, workerruntime.LevelInfo, fmt.Sprintf("git.branch: %s", info.Branch))
 			} else {
-				w.SendLog(ctx, workerruntime.LevelInfo, fmt.Sprintf("git.branch: [empty]"))
+				w.SendLog(ctx, workerruntime.LevelInfo, "git.branch: [empty]")
 			}
 		} else if branch != "" && branch != "{{.git.branch}}" {
 			w.SendLog(ctx, workerruntime.LevelInfo, fmt.Sprintf("git.branch: %s", branch))

sdk/exportentities/action_test.go

@@ -0,0 +1,51 @@
+package exportentities
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"gopkg.in/yaml.v2"
+)
+
+func TestGitClone(t *testing.T) {
+	content := `
+  name: "test"
+  steps:
+  - checkout: '{{ .cds.workspace }}'
+  - gitClone:
+      commit: HEAD
+      directory: '/external-packages'
+      url: 'ssh://external-packages.git'
+      privateKey: proj-ssh
+      tag: ''`
+
+	var jobAsCode Action
+
+	require.NoError(t, yaml.Unmarshal([]byte(content), &jobAsCode))
+
+	require.Len(t, jobAsCode.Steps, 2)
+
+	job, err := jobAsCode.GetAction()
+	require.NoError(t, err)
+
+	require.Equal(t, "CheckoutApplication", job.Actions[0].Name)
+	require.Equal(t, "{{ .cds.workspace }}", job.Actions[0].Parameters[0].Value)
+
+	require.Equal(t, "GitClone", job.Actions[1].Name)
+	require.Len(t, job.Actions[1].Parameters, 5)
+	for _, p := range job.Actions[1].Parameters {
+		t.Log(p.Name, p.Value)
+		switch p.Name {
+		case "commit":
+			require.Equal(t, "HEAD", p.Value)
+		case "directory":
+			require.Equal(t, "/external-packages", p.Value)
+		case "url":
+			require.Equal(t, "ssh://external-packages.git", p.Value)
+		case "privateKey":
+			require.Equal(t, "proj-ssh", p.Value)
+		case "tag":
+			require.Equal(t, "", p.Value)
+		}
+	}
+}

sdk/exportentities/step.go

@@ -109,7 +109,7 @@ func NewStep(act sdk.Action) Step {
 			}
 			tag := sdk.ParameterFind(act.Parameters, "tag")
 			if tag != nil && tag.Value != sdk.DefaultGitCloneParameterTagValue {
-				s.GitClone.Tag = tag.Value
+				s.GitClone.Tag = &tag.Value
 			}
 		case sdk.GitTagAction:
 			s.GitTag = &StepGitTag{}
@@ -287,16 +287,16 @@ type StepArtifactUpload struct {
 
 // StepGitClone represents exported git clone step.
 type StepGitClone struct {
-	Branch     string `json:"branch,omitempty" yaml:"branch,omitempty"`
-	Commit     string `json:"commit,omitempty" yaml:"commit,omitempty"`
-	Depth      string `json:"depth,omitempty" yaml:"depth,omitempty"`
-	Directory  string `json:"directory,omitempty" yaml:"directory,omitempty"`
-	Password   string `json:"password,omitempty" yaml:"password,omitempty"`
-	PrivateKey string `json:"privateKey,omitempty" yaml:"privateKey,omitempty"`
-	SubModules string `json:"submodules,omitempty" yaml:"submodules,omitempty"`
-	Tag        string `json:"tag,omitempty" yaml:"tag,omitempty"`
-	URL        string `json:"url,omitempty" yaml:"url,omitempty" jsonschema:"required"`
-	User       string `json:"user,omitempty" yaml:"user,omitempty"`
+	Branch     string  `json:"branch,omitempty" yaml:"branch,omitempty"`
+	Commit     string  `json:"commit,omitempty" yaml:"commit,omitempty"`
+	Depth      string  `json:"depth,omitempty" yaml:"depth,omitempty"`
+	Directory  string  `json:"directory,omitempty" yaml:"directory,omitempty"`
+	Password   string  `json:"password,omitempty" yaml:"password,omitempty"`
+	PrivateKey string  `json:"privateKey,omitempty" yaml:"privateKey,omitempty"`
+	SubModules string  `json:"submodules,omitempty" yaml:"submodules,omitempty"`
+	Tag        *string `json:"tag,omitempty" yaml:"tag,omitempty"`
+	URL        string  `json:"url,omitempty" yaml:"url,omitempty" jsonschema:"required"`
+	User       string  `json:"user,omitempty" yaml:"user,omitempty"`
 }
 
 // StepPromote represents exported promote step.