move appcontext implementation to separate source file

lib/context/appcontext.go

@@ -0,0 +1,53 @@
+package context
+
+import (
+	"sync"
+
+	"git.sr.ht/~cco/go-scopes/lib"
+)
+
+type appContext struct {
+	*context
+	services  Services
+	waitgroup *sync.WaitGroup
+	doneCh    chan struct{}
+}
+
+func (ctx *appContext) ChildContext(cfg lib.Config) Context {
+	cctx := makeCtx(cfg, ctx)
+	ctx.services[cfg.Name()] = cctx
+	ctx.children = append(ctx.children, cctx)
+	return cctx
+}
+
+func (ctx *appContext) Services() Services {
+	return ctx.services
+}
+
+func (ctx *appContext) WithState(state ContextState) Context {
+	ctx.state = state
+	return ctx
+}
+
+func (ctx *appContext) WaitGroup() *sync.WaitGroup {
+	return ctx.waitgroup
+}
+
+func (ctx *appContext) Done() <-chan struct{} {
+	return ctx.doneCh
+}
+
+func (ctx *appContext) Stop() {
+	close(ctx.doneCh)
+}
+
+func AppContext(cfg lib.Config) Context {
+	ctx := &appContext{
+		context:   makeCtx(cfg, nil),
+		services:  Services{},
+		waitgroup: &sync.WaitGroup{},
+		doneCh:    make(chan struct{}),
+	}
+	ctx.services[cfg.Name()] = ctx
+	return ctx
+}

lib/context/context.go

@@ -72,54 +72,6 @@ func makeCtx(cfg lib.Config, parent Context) *context {
 	}
 }
 
-// top-level application context
-
-type appContext struct {
-	*context
-	services  Services
-	waitgroup *sync.WaitGroup
-	doneCh    chan struct{}
-}
-
-func (ctx *appContext) ChildContext(cfg lib.Config) Context {
-	cctx := makeCtx(cfg, ctx)
-	ctx.services[cfg.Name()] = cctx
-	ctx.children = append(ctx.children, cctx)
-	return cctx
-}
-
-func (ctx *appContext) Services() Services {
-	return ctx.services
-}
-
-func (ctx *appContext) WithState(state ContextState) Context {
-	ctx.state = state
-	return ctx
-}
-
-func (ctx *appContext) WaitGroup() *sync.WaitGroup {
-	return ctx.waitgroup
-}
-
-func (ctx *appContext) Done() <-chan struct{} {
-	return ctx.doneCh
-}
-
-func (ctx *appContext) Stop() {
-	close(ctx.doneCh)
-}
-
-func AppContext(cfg lib.Config) Context {
-	ctx := &appContext{
-		context:   makeCtx(cfg, nil),
-		services:  Services{},
-		waitgroup: &sync.WaitGroup{},
-		doneCh:    make(chan struct{}),
-	}
-	ctx.services[cfg.Name()] = ctx
-	return ctx
-}
-
 // implement interface context.Context from standard library
 
 func (ctx *context) Deadline() (deadline time.Time, ok bool) {