func phonyGoTarget(ctx blueprint.ModuleContext, target string, srcs []string,
gensrcs []string, intermediates []string) {
var depTargets []string
ctx.VisitDepsDepthFirstIf(isGoPackageProducer,
func(module blueprint.Module) {
dep := module.(goPackageProducer)
target := dep.GoPackageTarget()
depTargets = append(depTargets, target)
})
moduleDir := ctx.ModuleDir()
srcs = pathtools.PrefixPaths(srcs, filepath.Join("$srcDir", moduleDir))
srcs = append(srcs, gensrcs...)
ctx.Build(pctx, blueprint.BuildParams{
Rule: phony,
Outputs: []string{target},
Inputs: srcs,
Implicits: depTargets,
})
// If one of the source files gets deleted or renamed that will prevent the
// re-bootstrapping happening because it depends on the missing source file.
// To get around this we add a build statement using the built-in phony rule
// for each source file, which will cause Ninja to treat it as dirty if its
// missing.
for _, src := range srcs {
ctx.Build(pctx, blueprint.BuildParams{
Rule: blueprint.Phony,
Outputs: []string{src},
})
}
// If there is no rule to build the intermediate files of a bootstrap go package
// the cleanup phase of the primary builder will delete the intermediate files,
// forcing an unnecessary rebuild. Add phony rules for all of them.
for _, intermediate := range intermediates {
ctx.Build(pctx, blueprint.BuildParams{
Rule: blueprint.Phony,
Outputs: []string{intermediate},
})
}
}
// moduleSrcDir returns the path of the directory that all source file paths are
// specified relative to.
func moduleSrcDir(ctx blueprint.ModuleContext) string {
return filepath.Join("$srcDir", ctx.ModuleDir())
}