scheduler WIP: add GetAllJobs api.

scheduler/appengine/apiservers/scheduler.go

 // Copyright 2016 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package apiservers
 
 import (
         "github.com/luci/luci-go/scheduler/api/scheduler/v1"
         "github.com/luci/luci-go/scheduler/appengine/catalog"
         "github.com/luci/luci-go/scheduler/appengine/engine"
 )
+import (
+        context "golang.org/x/net/context"

[Vadim Sh., 2017/06/19 17:44:19]

move this import to existing imports section, before luci-go imports

also no need to alias as "context", it is already "context"

[tandrii(chromium), 2017/06/20 11:48:05]

Done.

TBH, i learned to ignore import sections in GO thanks to goimports, but I guess
i had some copy-pasta-caused issues.

+)
 
 // SchedulerServer implements scheduler.Scheduler API.
 type SchedulerServer struct {
         Engine  engine.Engine
         Catalog catalog.Catalog
 }
 
 var _ scheduler.SchedulerServer = (*SchedulerServer)(nil)
+
+// GetJobs fetches all jobs satisfying JobsRequest and visibility ACLs.
+func (s SchedulerServer) GetJobs(ctx context.Context, in *scheduler.JobsRequest) (*scheduler.JobsReply, error) {
+        var ejobs []*engine.Job
+        var err error
+        if in.GetProject() == "" {
+                ejobs, err = s.Engine.GetAllJobs(ctx)
+        } else {
+                ejobs, err = s.Engine.GetProjectJobs(ctx, in.GetProject())
+        }
+        if err != nil {
+                return nil, err

[Vadim Sh., 2017/06/19 17:44:19]

gRPC methods should always return grpc errors, e.g. grpc.Errorf(codes.Internal,
"datastore error - %s", err)

[tandrii(chromium), 2017/06/20 11:48:05]

Done.

+        }
+
+        jobs := make([]*scheduler.JobWithState, len(ejobs))
+        for i, ej := range ejobs {
+                jobs[i] = &scheduler.JobWithState{
+                        Id:       ej.JobID,
+                        Project:  ej.ProjectID,
+                        Schedule: ej.Schedule,
+                        State: &scheduler.JobState{
+                                Kind: string(ej.State.State),
+                        },
+                }
+        }
+        return &scheduler.JobsReply{Jobs: jobs}, nil
+}