feat(pipeline)!: add warnings to pipelines that use legacy YAML lib or have dupl anchors in map

api/pipeline/template.go

@@ -101,7 +101,7 @@ func GetTemplates(c *gin.Context) {
 	compiler := compiler.FromContext(c).Duplicate().WithCommit(p.GetCommit()).WithMetadata(m).WithRepo(r).WithUser(u)
 
 	// parse the pipeline configuration
-	pipeline, _, err := compiler.Parse(p.GetData(), p.GetType(), new(yaml.Template))
+	pipeline, _, _, err := compiler.Parse(p.GetData(), p.GetType(), new(yaml.Template))
 	if err != nil {
 		util.HandleError(c, http.StatusBadRequest, fmt.Errorf("unable to parse pipeline %s: %w", entry, err))
 

api/types/pipeline.go

@@ -10,20 +10,21 @@ import (
 //
 // swagger:model Pipeline
 type Pipeline struct {
-	ID              *int64  `json:"id,omitempty"`
-	Repo            *Repo   `json:"repo,omitempty"`
-	Commit          *string `json:"commit,omitempty"`
-	Flavor          *string `json:"flavor,omitempty"`
-	Platform        *string `json:"platform,omitempty"`
-	Ref             *string `json:"ref,omitempty"`
-	Type            *string `json:"type,omitempty"`
-	Version         *string `json:"version,omitempty"`
-	ExternalSecrets *bool   `json:"external_secrets,omitempty"`
-	InternalSecrets *bool   `json:"internal_secrets,omitempty"`
-	Services        *bool   `json:"services,omitempty"`
-	Stages          *bool   `json:"stages,omitempty"`
-	Steps           *bool   `json:"steps,omitempty"`
-	Templates       *bool   `json:"templates,omitempty"`
+	ID              *int64    `json:"id,omitempty"`
+	Repo            *Repo     `json:"repo,omitempty"`
+	Commit          *string   `json:"commit,omitempty"`
+	Flavor          *string   `json:"flavor,omitempty"`
+	Platform        *string   `json:"platform,omitempty"`
+	Ref             *string   `json:"ref,omitempty"`
+	Type            *string   `json:"type,omitempty"`
+	Version         *string   `json:"version,omitempty"`
+	ExternalSecrets *bool     `json:"external_secrets,omitempty"`
+	InternalSecrets *bool     `json:"internal_secrets,omitempty"`
+	Services        *bool     `json:"services,omitempty"`
+	Stages          *bool     `json:"stages,omitempty"`
+	Steps           *bool     `json:"steps,omitempty"`
+	Templates       *bool     `json:"templates,omitempty"`
+	Warnings        *[]string `json:"warnings,omitempty"`
 	// swagger:strfmt base64
 	Data *[]byte `json:"data,omitempty"`
 }
@@ -210,6 +211,19 @@ func (p *Pipeline) GetTemplates() bool {
 	return *p.Templates
 }
 
+// GetWarnings returns the Warnings field.
+//
+// When the provided Pipeline type is nil, or the field within
+// the type is nil, it returns the zero value for the field.
+func (p *Pipeline) GetWarnings() []string {
+	// return zero value if Pipeline type or Warnings field is nil
+	if p == nil || p.Warnings == nil {
+		return []string{}
+	}
+
+	return *p.Warnings
+}
+
 // GetData returns the Data field.
 //
 // When the provided Pipeline type is nil, or the field within
@@ -405,6 +419,19 @@ func (p *Pipeline) SetTemplates(v bool) {
 	p.Templates = &v
 }
 
+// SetWarnings sets the Warnings field.
+//
+// When the provided Pipeline type is nil, it
+// will set nothing and immediately return.
+func (p *Pipeline) SetWarnings(v []string) {
+	// return if Pipeline type is nil
+	if p == nil {
+		return
+	}
+
+	p.Warnings = &v
+}
+
 // SetData sets the Data field.
 //
 // When the provided Pipeline type is nil, it
@@ -436,6 +463,7 @@ func (p *Pipeline) String() string {
   Templates: %t,
   Type: %s,
   Version: %s,
+  Warnings: %v,
 }`,
 		p.GetCommit(),
 		p.GetData(),
@@ -452,5 +480,6 @@ func (p *Pipeline) String() string {
 		p.GetTemplates(),
 		p.GetType(),
 		p.GetVersion(),
+		p.GetWarnings(),
 	)
 }

api/types/pipeline_test.go

@@ -82,6 +82,10 @@ func TestAPI_Pipeline_Getters(t *testing.T) {
 			t.Errorf("GetTemplates is %v, want %v", test.pipeline.GetTemplates(), test.want.GetTemplates())
 		}
 
+		if !reflect.DeepEqual(test.pipeline.GetWarnings(), test.want.GetWarnings()) {
+			t.Errorf("GetWarnings is %v, want %v", test.pipeline.GetWarnings(), test.want.GetWarnings())
+		}
+
 		if !reflect.DeepEqual(test.pipeline.GetData(), test.want.GetData()) {
 			t.Errorf("GetData is %v, want %v", test.pipeline.GetData(), test.want.GetData())
 		}
@@ -123,6 +127,7 @@ func TestAPI_Pipeline_Setters(t *testing.T) {
 		test.pipeline.SetStages(test.want.GetStages())
 		test.pipeline.SetSteps(test.want.GetSteps())
 		test.pipeline.SetTemplates(test.want.GetTemplates())
+		test.pipeline.SetWarnings(test.want.GetWarnings())
 		test.pipeline.SetData(test.want.GetData())
 
 		if test.pipeline.GetID() != test.want.GetID() {
@@ -181,6 +186,10 @@ func TestAPI_Pipeline_Setters(t *testing.T) {
 			t.Errorf("SetTemplates is %v, want %v", test.pipeline.GetTemplates(), test.want.GetTemplates())
 		}
 
+		if !reflect.DeepEqual(test.pipeline.GetWarnings(), test.want.GetWarnings()) {
+			t.Errorf("SetWarnings is %v, want %v", test.pipeline.GetWarnings(), test.want.GetWarnings())
+		}
+
 		if !reflect.DeepEqual(test.pipeline.GetData(), test.want.GetData()) {
 			t.Errorf("SetData is %v, want %v", test.pipeline.GetData(), test.want.GetData())
 		}
@@ -207,6 +216,7 @@ func TestAPI_Pipeline_String(t *testing.T) {
   Templates: %t,
   Type: %s,
   Version: %s,
+  Warnings: %v,
 }`,
 		p.GetCommit(),
 		p.GetData(),
@@ -223,6 +233,7 @@ func TestAPI_Pipeline_String(t *testing.T) {
 		p.GetTemplates(),
 		p.GetType(),
 		p.GetVersion(),
+		p.GetWarnings(),
 	)
 
 	// run test
@@ -253,6 +264,7 @@ func testPipeline() *Pipeline {
 	p.SetSteps(true)
 	p.SetTemplates(false)
 	p.SetData(testPipelineData())
+	p.SetWarnings([]string{"42:this is a warning"})
 
 	return p
 }

compiler/engine.go

@@ -36,7 +36,7 @@ type Engine interface {
 
 	// Parse defines a function that converts
 	// an object to a yaml configuration.
-	Parse(interface{}, string, *yaml.Template) (*yaml.Build, []byte, error)
+	Parse(interface{}, string, *yaml.Template) (*yaml.Build, []byte, []string, error)
 
 	// ParseRaw defines a function that converts
 	// an object to a string.

compiler/native/compile.go

@@ -39,7 +39,7 @@ type ModifyResponse struct {
 
 // Compile produces an executable pipeline from a yaml configuration.
 func (c *client) Compile(ctx context.Context, v interface{}) (*pipeline.Build, *api.Pipeline, error) {
-	p, data, err := c.Parse(v, c.repo.GetPipelineType(), new(yaml.Template))
+	p, data, warnings, err := c.Parse(v, c.repo.GetPipelineType(), new(yaml.Template))
 	if err != nil {
 		return nil, nil, err
 	}
@@ -61,6 +61,7 @@ func (c *client) Compile(ctx context.Context, v interface{}) (*pipeline.Build, *
 	_pipeline := p.ToPipelineAPI()
 	_pipeline.SetData(data)
 	_pipeline.SetType(c.repo.GetPipelineType())
+	_pipeline.SetWarnings(warnings)
 
 	// create map of templates for easy lookup
 	templates := mapFromTemplates(p.Templates)
@@ -117,7 +118,7 @@ func (c *client) Compile(ctx context.Context, v interface{}) (*pipeline.Build, *
 
 // CompileLite produces a partial of an executable pipeline from a yaml configuration.
 func (c *client) CompileLite(ctx context.Context, v interface{}, ruleData *pipeline.RuleData, substitute bool) (*yaml.Build, *api.Pipeline, error) {
-	p, data, err := c.Parse(v, c.repo.GetPipelineType(), new(yaml.Template))
+	p, data, warnings, err := c.Parse(v, c.repo.GetPipelineType(), new(yaml.Template))
 	if err != nil {
 		return nil, nil, err
 	}
@@ -126,6 +127,7 @@ func (c *client) CompileLite(ctx context.Context, v interface{}, ruleData *pipel
 	_pipeline := p.ToPipelineAPI()
 	_pipeline.SetData(data)
 	_pipeline.SetType(c.repo.GetPipelineType())
+	_pipeline.SetWarnings(warnings)
 
 	if p.Metadata.RenderInline {
 		newPipeline, err := c.compileInline(ctx, p, c.GetTemplateDepth())
@@ -267,7 +269,7 @@ func (c *client) compileInline(ctx context.Context, p *yaml.Build, depth int) (*
 		// inject template name into variables
 		template.Variables["VELA_TEMPLATE_NAME"] = template.Name
 
-		parsed, _, err := c.Parse(bytes, format, template)
+		parsed, _, _, err := c.Parse(bytes, format, template)
 		if err != nil {
 			return nil, err
 		}

compiler/native/expand.go

@@ -138,7 +138,7 @@
 		// inject template name into variables
 		step.Template.Variables["VELA_TEMPLATE_NAME"] = step.Template.Name
 
-		tmplBuild, err := c.mergeTemplate(bytes, tmpl, step)
+		tmplBuild, _, err := c.mergeTemplate(bytes, tmpl, step)
 		if err != nil {
 			return s, err
 		}
@@ -247,7 +247,7 @@
 		b.Deployment.Template.Variables = make(map[string]interface{})
 	}
 
-	tmplBuild, err := c.mergeDeployTemplate(bytes, tmpl, &b.Deployment)
+	tmplBuild, _, err := c.mergeDeployTemplate(bytes, tmpl, &b.Deployment)
 	if err != nil {
 		return b, err
 	}
@@ -391,9 +391,9 @@
 }
 
 //nolint:lll // ignore long line length due to input arguments
-func (c *client) mergeTemplate(bytes []byte, tmpl *yaml.Template, step *yaml.Step) (*yaml.Build, error) {
+func (c *client) mergeTemplate(bytes []byte, tmpl *yaml.Template, step *yaml.Step) (*yaml.Build, []string, error) {
 	switch tmpl.Format {
 	case constants.PipelineTypeGo, "golang", "":
 		//nolint:lll // ignore long line length due to return
 		return native.Render(string(bytes), step.Name, step.Template.Name, step.Environment, step.Template.Variables)
 	case constants.PipelineTypeStarlark:
@@ -401,11 +401,11 @@
 		return starlark.Render(string(bytes), step.Name, step.Template.Name, step.Environment, step.Template.Variables, c.GetStarlarkExecLimit())
 	default:
 		//nolint:lll // ignore long line length due to return
-		return &yaml.Build{}, fmt.Errorf("format of %s is unsupported", tmpl.Format)
+		return &yaml.Build{}, nil, fmt.Errorf("format of %s is unsupported", tmpl.Format)
 	}
 }
 
-func (c *client) mergeDeployTemplate(bytes []byte, tmpl *yaml.Template, d *yaml.Deployment) (*yaml.Build, error) {
+func (c *client) mergeDeployTemplate(bytes []byte, tmpl *yaml.Template, d *yaml.Deployment) (*yaml.Build, []string, error) {
 	switch tmpl.Format {
 	case constants.PipelineTypeGo, "golang", "":
 		//nolint:lll // ignore long line length due to return
@@ -415,7 +415,7 @@
 		return starlark.Render(string(bytes), "", d.Template.Name, make(raw.StringSliceMap), d.Template.Variables, c.GetStarlarkExecLimit())
 	default:
 		//nolint:lll // ignore long line length due to return
-		return &yaml.Build{}, fmt.Errorf("format of %s is unsupported", tmpl.Format)
+		return &yaml.Build{}, nil, fmt.Errorf("format of %s is unsupported", tmpl.Format)
 	}
 }
 

compiler/native/parse.go

@@ -40,40 +40,41 @@ func (c *client) ParseRaw(v interface{}) (string, error) {
 }
 
 // Parse converts an object to a yaml configuration.
-func (c *client) Parse(v interface{}, pipelineType string, template *yaml.Template) (*yaml.Build, []byte, error) {
+func (c *client) Parse(v interface{}, pipelineType string, template *yaml.Template) (*yaml.Build, []byte, []string, error) {
 	var (
-		p   *yaml.Build
-		raw []byte
+		p        *yaml.Build
+		warnings []string
+		raw      []byte
 	)
 
 	switch pipelineType {
 	case constants.PipelineTypeGo, "golang":
 		// expand the base configuration
 		parsedRaw, err := c.ParseRaw(v)
 		if err != nil {
-			return nil, nil, err
+			return nil, nil, nil, err
 		}
 
 		// capture the raw pipeline configuration
 		raw = []byte(parsedRaw)
 
-		p, err = native.RenderBuild(template.Name, parsedRaw, c.EnvironmentBuild(), template.Variables)
+		p, warnings, err = native.RenderBuild(template.Name, parsedRaw, c.EnvironmentBuild(), template.Variables)
 		if err != nil {
-			return nil, raw, err
+			return nil, raw, nil, err
 		}
 	case constants.PipelineTypeStarlark:
 		// expand the base configuration
 		parsedRaw, err := c.ParseRaw(v)
 		if err != nil {
-			return nil, nil, err
+			return nil, nil, nil, err
 		}
 
 		// capture the raw pipeline configuration
 		raw = []byte(parsedRaw)
 
-		p, err = starlark.RenderBuild(template.Name, parsedRaw, c.EnvironmentBuild(), template.Variables, c.GetStarlarkExecLimit())
+		p, warnings, err = starlark.RenderBuild(template.Name, parsedRaw, c.EnvironmentBuild(), template.Variables, c.GetStarlarkExecLimit())
 		if err != nil {
-			return nil, raw, err
+			return nil, raw, nil, err
 		}
 	case constants.PipelineTypeYAML, "":
 		switch v := v.(type) {
@@ -90,14 +91,13 @@ func (c *client) Parse(v interface{}, pipelineType string, template *yaml.Templa
 				// parse string as path to yaml configuration
 				return ParsePath(v)
 			}
-
 			// parse string as yaml configuration
 			return ParseString(v)
 		default:
-			return nil, nil, fmt.Errorf("unable to parse yaml: unrecognized type %T", v)
+			return nil, nil, nil, fmt.Errorf("unable to parse yaml: unrecognized type %T", v)
 		}
 	default:
-		return nil, nil, fmt.Errorf("unable to parse config: unrecognized pipeline_type of %s", c.repo.GetPipelineType())
+		return nil, nil, nil, fmt.Errorf("unable to parse config: unrecognized pipeline_type of %s", c.repo.GetPipelineType())
 	}
 
 	// initializing Environment to prevent nil error
@@ -107,14 +107,14 @@ func (c *client) Parse(v interface{}, pipelineType string, template *yaml.Templa
 		p.Environment = typesRaw.StringSliceMap{}
 	}
 
-	return p, raw, nil
+	return p, raw, warnings, nil
 }
 
 // ParseBytes converts a byte slice to a yaml configuration.
-func ParseBytes(data []byte) (*yaml.Build, []byte, error) {
-	config, err := internal.ParseYAML(data)
+func ParseBytes(data []byte) (*yaml.Build, []byte, []string, error) {
+	config, warnings, err := internal.ParseYAML(data)
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, nil, err
 	}
 
 	// initializing Environment to prevent nil error
@@ -124,11 +124,11 @@ func ParseBytes(data []byte) (*yaml.Build, []byte, error) {
 		config.Environment = typesRaw.StringSliceMap{}
 	}
 
-	return config, data, nil
+	return config, data, warnings, nil
 }
 
 // ParseFile converts an os.File into a yaml configuration.
-func ParseFile(f *os.File) (*yaml.Build, []byte, error) {
+func ParseFile(f *os.File) (*yaml.Build, []byte, []string, error) {
 	return ParseReader(f)
 }
 
@@ -138,11 +138,11 @@ func ParseFileRaw(f *os.File) (string, error) {
 }
 
 // ParsePath converts a file path into a yaml configuration.
-func ParsePath(p string) (*yaml.Build, []byte, error) {
+func ParsePath(p string) (*yaml.Build, []byte, []string, error) {
 	// open the file for reading
 	f, err := os.Open(p)
 	if err != nil {
-		return nil, nil, fmt.Errorf("unable to open yaml file %s: %w", p, err)
+		return nil, nil, nil, fmt.Errorf("unable to open yaml file %s: %w", p, err)
 	}
 
 	defer f.Close()
@@ -157,18 +157,17 @@ func ParsePathRaw(p string) (string, error) {
 	if err != nil {
 		return "", fmt.Errorf("unable to open yaml file %s: %w", p, err)
 	}
-
 	defer f.Close()
 
 	return ParseReaderRaw(f)
 }
 
 // ParseReader converts an io.Reader into a yaml configuration.
-func ParseReader(r io.Reader) (*yaml.Build, []byte, error) {
+func ParseReader(r io.Reader) (*yaml.Build, []byte, []string, error) {
 	// read all the bytes from the reader
 	data, err := io.ReadAll(r)
 	if err != nil {
-		return nil, nil, fmt.Errorf("unable to read bytes for yaml: %w", err)
+		return nil, nil, nil, fmt.Errorf("unable to read bytes for yaml: %w", err)
 	}
 
 	return ParseBytes(data)
@@ -186,6 +185,6 @@ func ParseReaderRaw(r io.Reader) (string, error) {
 }
 
 // ParseString converts a string into a yaml configuration.
-func ParseString(s string) (*yaml.Build, []byte, error) {
+func ParseString(s string) (*yaml.Build, []byte, []string, error) {
 	return ParseBytes([]byte(s))
 }