Fix #8 - Refactor to use gRPC for IPC

.github/workflows/ci.yml

@@ -25,9 +25,13 @@ jobs:
         path: ~/go/pkg/mod
         key: ${{ runner.OS }}-go-${{ hashFiles('**/go.sum') }}
 
-    - name: Generate Mocks
+    - name: Install Protoc
+      uses: arduino/setup-protoc@v1
+
+    - name: Generate Mocks & Protobufs
       run: |
         go install github.com/golang/mock/mockgen
+        go get github.com/golang/protobuf/protoc-gen-go
         make generate
 
     - name: Run golangci-lint

.github/workflows/release.yaml

@@ -13,7 +13,7 @@ jobs:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         goos: linux
         goarch: amd64
-        goversion: "https://golang.org/dl/go1.15.7.linux-amd64.tar.gz"
+        goversion: "https://golang.org/dl/go1.16.linux-amd64.tar.gz"
         project_path: ./cmd/bspm
         binary_name: bspm
         ldflags: "-s -w -X 'main.Version=${{ github.event.release.tag_name }}'"

README.md

@@ -53,37 +53,10 @@ You'll need to have the necessary dependencies installed for whatever command yo
 ---
 
 **Here's a tip**: To be able to use `j` and `k` to cycle between nodes in this mode and still be able to use those keys 
-in `tiled` mode, you can use a script like this one:
-
-*Shell scripting isn't exactly my strong suit, (hence `bspm` being written in Go) so there might be a better way to write this script.*
-
-```shell
-#!/bin/bash
-current_layout=$(bspc query -T -d | jq -r .layout)
-
-if [[ $current_layout == monocle ]]
-then
-  if [[ $@ == up ]]
-  then
-    bspm monocle --next
-  else
-    # We assume it's "down"
-    bspm monocle --prev
-  fi
-else
-  # Act normally
-  if [[ $@ == up ]]
-  then
-    bspc node -f north
-  else
-    # We assume it's "down"
-    bspc node -f south
-  fi
-fi
-```
-
-And then have something like this in your `sxhkdrc` file:
+in `tiled` mode, you can use the following snippet in your `sxhkdrc`:
 ```
-super + {j,k}
-  $PATH_TO_SCRIPT/script_name.sh {down,up}
+super + j
+	bspm monocle --prev || bspc node -f south
+super + k
+	bspm monocle --next || bspc node -f north
 ```

go.mod

@@ -6,7 +6,10 @@ require (
 	github.com/diogox/bspc-go v0.0.0-20210223003857-a374b109650b
 	github.com/fatih/color v1.10.0
 	github.com/golang/mock v1.4.4
+	github.com/golang/protobuf v1.4.3
 	github.com/stretchr/testify v1.7.0
 	github.com/urfave/cli/v2 v2.3.0
 	go.uber.org/zap v1.16.0
+	google.golang.org/grpc v1.36.0
+	google.golang.org/protobuf v1.25.0
 )

go.sum

@@ -1,17 +1,46 @@
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@@ -26,6 +55,7 @@ github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
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@@ -34,6 +64,7 @@ github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeV
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+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
+google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.36.0 h1:o1bcQ6imQMIOpdrO3SWf2z5RV72WbDwdXuK0MDlc8As=
+google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
+google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
+google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
+google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
+google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -77,5 +148,7 @@ gopkg.in/yaml.v2 v2.2.3 h1:fvjTMHxHEw/mxHbtzPi3JCcKXQRAnQTBRo6YCJSVHKI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=

internal/cli/cli.go

@@ -3,12 +3,15 @@ package cli
 import (
 	"errors"
 	"fmt"
+	"os"
 
 	"github.com/fatih/color"
+	"github.com/golang/protobuf/ptypes/empty"
 	"github.com/urfave/cli/v2"
 	"go.uber.org/zap"
 
-	"github.com/diogox/bspm/internal/ipc"
+	"github.com/diogox/bspm/internal/grpc"
+	"github.com/diogox/bspm/internal/grpc/bspm"
 	"github.com/diogox/bspm/internal/log"
 )
 
@@ -41,6 +44,10 @@ func New(logger *zap.Logger, version string) app {
 					Usage: "Verbose logging",
 				},
 			},
+			ExitErrHandler: func(context *cli.Context, err error) {
+				color.Red("Failed: %v", err)
+				os.Exit(1)
+			},
 			Commands: []*cli.Command{
 				{
 					Name:  "monocle",
@@ -60,11 +67,10 @@ func New(logger *zap.Logger, version string) app {
 						},
 					},
 					Action: func(ctx *cli.Context) error {
-						c, err := ipc.NewClient()
+						c, err := grpc.NewClient()
 						if err != nil {
 							return err
 						}
-						defer c.Close()
 
 						if ctx.NumFlags() != 1 {
 							return errors.New("only one flag is expected")
@@ -76,23 +82,31 @@ func New(logger *zap.Logger, version string) app {
 							isPrev   = ctx.Bool(flagKeyMonoclePrev)
 						)
 
-						var msg ipc.Message
 						switch {
 						case isToggle:
-							msg = DaemonCommandMonocleToggle
+							if _, err := c.ToggleMonocleMode(ctx.Context, &empty.Empty{}); err != nil {
+								return fmt.Errorf("failed to toggle monocle mode: %w", err)
+							}
 						case isPrev:
-							msg = DaemonCommandMonoclePrevious
+							req := &bspm.MonocleModeCycleRequest{
+								CycleDirection: bspm.CycleDir_CYCLE_DIR_PREV,
+							}
+
+							if _, err := c.MonocleModeCycle(ctx.Context, req); err != nil {
+								return fmt.Errorf("failed to cycle to previous node in monocle mode: %w", err)
+							}
 						case isNext:
-							msg = DaemonCommandMonocleNext
+							req := &bspm.MonocleModeCycleRequest{
+								CycleDirection: bspm.CycleDir_CYCLE_DIR_NEXT,
+							}
+
+							if _, err := c.MonocleModeCycle(ctx.Context, req); err != nil {
+								return fmt.Errorf("failed to cycle to next node in monocle mode: %w", err)
+							}
 						default:
 							return errors.New("unexpected error")
 						}
 
-						if err := c.Send(msg); err != nil {
-							color.Red("Failed: %v", err)
-							return fmt.Errorf("failed to communicate with manager: %v", err)
-						}
-
 						return nil
 					},
 				},
@@ -117,3 +131,11 @@ func New(logger *zap.Logger, version string) app {
 		},
 	}
 }
+
+func (a app) Run() error {
+	if err := a.cli.Run(os.Args); err != nil {
+		return err
+	}
+
+	return nil
+}