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import ( "errors" "fmt"
"tangled.sh/tangled.sh/core/api/tangled")
type RawWorkflow struct { Name string Contents []byte}
type RawPipeline = []RawWorkflow
type Compiler struct { Trigger tangled.Pipeline_TriggerMetadata Diagnostics Diagnostics}
type Diagnostics struct { Errors []Error Warnings []Warning}
func (d *Diagnostics) IsEmpty() bool { return len(d.Errors) == 0 && len(d.Warnings) == 0}
func (d *Diagnostics) Combine(o Diagnostics) { d.Errors = append(d.Errors, o.Errors...) d.Warnings = append(d.Warnings, o.Warnings...)}
func (d *Diagnostics) AddWarning(path string, kind WarningKind, reason string) { d.Warnings = append(d.Warnings, Warning{path, kind, reason})}
func (d *Diagnostics) AddError(path string, err error) { d.Errors = append(d.Errors, Error{path, err})}
func (d Diagnostics) IsErr() bool { return len(d.Errors) != 0}
type Error struct { Path string Error error}
func (e Error) String() string { return fmt.Sprintf("error: %s: %s", e.Path, e.Error.Error())}
type Warning struct { Path string Type WarningKind Reason string}
func (w Warning) String() string { return fmt.Sprintf("warning: %s: %s: %s", w.Path, w.Type, w.Reason)}
var ( MissingEngine error = errors.New("missing engine"))
type WarningKind string
var ( WorkflowSkipped WarningKind = "workflow skipped" InvalidConfiguration WarningKind = "invalid configuration")
func (compiler *Compiler) Parse(p RawPipeline) Pipeline { var pp Pipeline
for _, w := range p { wf, err := FromFile(w.Name, w.Contents) if err != nil { compiler.Diagnostics.AddError(w.Name, err) continue }
pp = append(pp, wf) }
return pp}
// convert a repositories' workflow files into a fully compiled pipeline that runners acceptfunc (compiler *Compiler) Compile(p Pipeline) tangled.Pipeline { cp := tangled.Pipeline{ TriggerMetadata: &compiler.Trigger, }
for _, wf := range p { cw := compiler.compileWorkflow(wf)
if cw == nil { continue }
cp.Workflows = append(cp.Workflows, cw) }
return cp}
func (compiler *Compiler) compileWorkflow(w Workflow) *tangled.Pipeline_Workflow { cw := &tangled.Pipeline_Workflow{}
if !w.Match(compiler.Trigger) { compiler.Diagnostics.AddWarning( w.Name, WorkflowSkipped, fmt.Sprintf("did not match trigger %s", compiler.Trigger.Kind), ) return nil }
// validate clone options compiler.analyzeCloneOptions(w)
cw.Name = w.Name
if w.Engine == "" { compiler.Diagnostics.AddError(w.Name, MissingEngine) return nil }
cw.Engine = w.Engine cw.Raw = w.Raw
o := w.CloneOpts.AsRecord() cw.Clone = &o
return cw}
func (compiler *Compiler) analyzeCloneOptions(w Workflow) { if w.CloneOpts.Skip && w.CloneOpts.IncludeSubmodules { compiler.Diagnostics.AddWarning( w.Name, InvalidConfiguration, "cannot apply `clone.skip` and `clone.submodules`", ) }
if w.CloneOpts.Skip && w.CloneOpts.Depth > 0 { compiler.Diagnostics.AddWarning( w.Name, InvalidConfiguration, "cannot apply `clone.skip` and `clone.depth`", ) }}