1 package bootstrap 2 3 import ( 4 "fmt" 5 "path/filepath" 6 7 "github.com/google/blueprint" 8 "github.com/google/blueprint/bootstrap/bpdoc" 9 "github.com/google/blueprint/pathtools" 10 ) 11 12 func writeDocs(ctx *blueprint.Context, srcDir, filename string) error { 13 // Find the module that's marked as the "primary builder", which means it's 14 // creating the binary that we'll use to generate the non-bootstrap 15 // build.ninja file. 16 var primaryBuilders []*goBinary 17 var minibp *goBinary 18 ctx.VisitAllModulesIf(isBootstrapBinaryModule, 19 func(module blueprint.Module) { 20 binaryModule := module.(*goBinary) 21 if binaryModule.properties.PrimaryBuilder { 22 primaryBuilders = append(primaryBuilders, binaryModule) 23 } 24 if ctx.ModuleName(binaryModule) == "minibp" { 25 minibp = binaryModule 26 } 27 }) 28 29 if minibp == nil { 30 panic("missing minibp") 31 } 32 33 var primaryBuilder *goBinary 34 switch len(primaryBuilders) { 35 case 0: 36 // If there's no primary builder module then that means we'll use minibp 37 // as the primary builder. 38 primaryBuilder = minibp 39 40 case 1: 41 primaryBuilder = primaryBuilders[0] 42 43 default: 44 return fmt.Errorf("multiple primary builder modules present") 45 } 46 47 pkgFiles := make(map[string][]string) 48 ctx.VisitDepsDepthFirst(primaryBuilder, func(module blueprint.Module) { 49 switch m := module.(type) { 50 case (*goPackage): 51 pkgFiles[m.properties.PkgPath] = pathtools.PrefixPaths(m.properties.Srcs, 52 filepath.Join(srcDir, ctx.ModuleDir(m))) 53 default: 54 panic(fmt.Errorf("unknown dependency type %T", module)) 55 } 56 }) 57 58 return bpdoc.Write(filename, pkgFiles, ctx.ModuleTypePropertyStructs()) 59 } 60
