From 274266df44e7c48bfb94ed31380ce8f937dbc713 Mon Sep 17 00:00:00 2001 From: Andrej Zavgorodnij Date: Tue, 4 Aug 2020 10:45:32 +0300 Subject: [PATCH] feat: added cmd --- client/client.go | 3 + cmd/client/main.go | 93 ++++++++++++++++++++++++++ go.mod | 1 + go.sum | 128 ++++++++++++++++++++++++++++++++++++ qr/qr.go | 4 +- storage/fileStorage.go | 4 +- storage/fileStorage_test.go | 2 +- 7 files changed, 231 insertions(+), 4 deletions(-) create mode 100644 cmd/client/main.go diff --git a/client/client.go b/client/client.go index 5923173..a5677f1 100644 --- a/client/client.go +++ b/client/client.go @@ -6,6 +6,7 @@ import ( "fmt" "log" "path/filepath" + "sync" "time" "github.com/depools/dc4bc/qr" @@ -18,6 +19,7 @@ const ( ) type Client struct { + sync.Mutex ctx context.Context fsm interface{} state State @@ -86,6 +88,7 @@ func (c *Client) Poll() { } } case <-c.ctx.Done(): + log.Println("Context closed, stop polling...") return } } diff --git a/cmd/client/main.go b/cmd/client/main.go new file mode 100644 index 0000000..2f1c0af --- /dev/null +++ b/cmd/client/main.go @@ -0,0 +1,93 @@ +package main + +import ( + "context" + "log" + "os" + "os/signal" + "syscall" + + "github.com/depools/dc4bc/client" + "github.com/depools/dc4bc/qr" + "github.com/depools/dc4bc/storage" + + "github.com/spf13/cobra" +) + +const ( + flagListenAddr = "listen_addr" + flagStateDBDSN = "state_dbdsn" + flagStorageDBDSN = "storage_dbdsn" +) + +func init() { + rootCmd.PersistentFlags().String(flagListenAddr, "localhost:8080", "Listen address") + rootCmd.PersistentFlags().String(flagStateDBDSN, "./dc4bc_client_state", "State DBDSN") + rootCmd.PersistentFlags().String(flagStorageDBDSN, "./dc4bc_file_storage", "Storage DBDSN") +} + +var rootCmd = &cobra.Command{ + Use: "dc4bc_client", + Short: "dc4bc client implementation", + Run: func(cmd *cobra.Command, args []string) { + listenAddr, err := cmd.PersistentFlags().GetString(flagListenAddr) + if err != nil { + log.Fatalf("failed to read configuration: %v", err) + } + + stateDBDSN, err := cmd.PersistentFlags().GetString(flagStateDBDSN) + if err != nil { + log.Fatalf("failed to read configuration: %v", err) + } + + storageDBDSN, err := cmd.PersistentFlags().GetString(flagStorageDBDSN) + if err != nil { + log.Fatalf("failed to read configuration: %v", err) + } + + ctx := context.Background() + ctx, cancel := context.WithCancel(ctx) + + state, err := client.NewLevelDBState(stateDBDSN) + if err != nil { + log.Fatalf("Failed to init state client: %v", err) + } + + stg, err := storage.NewFileStorage(storageDBDSN) + if err != nil { + log.Fatalf("Failed to init storage client: %v", err) + } + + processor := qr.NewCameraProcessor() + + // TODO: create state machine. + + cli, err := client.NewClient(ctx, nil, state, stg, processor) + if err != nil { + log.Fatalf("Failed to init client: %v", err) + } + + sigs := make(chan os.Signal, 1) + signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM) + go func() { + <-sigs + + log.Println("Received signal, stopping client...") + cancel() + + log.Println("Client stopped, exiting") + os.Exit(0) + }() + + log.Printf("Client started on %s...", listenAddr) + if err := cli.StartHTTPServer(listenAddr); err != nil { + log.Fatalf("Client error: %v", err) + } + }, +} + +func main() { + if err := rootCmd.Execute(); err != nil { + log.Fatalf("Failed to execute root command: %v", err) + } +} diff --git a/go.mod b/go.mod index 1fcf577..48c4606 100644 --- a/go.mod +++ b/go.mod @@ -9,6 +9,7 @@ require ( github.com/looplab/fsm v0.1.0 github.com/makiuchi-d/gozxing v0.0.0-20190830103442-eaff64b1ceb7 github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e + github.com/spf13/cobra v1.0.0 github.com/stretchr/testify v1.6.1 github.com/syndtr/goleveldb v1.0.0 go.dedis.ch/kyber/v3 v3.0.9 diff --git a/go.sum b/go.sum index 1bbc3d8..31a3765 100644 --- a/go.sum +++ b/go.sum @@ -1,35 +1,123 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= 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a/qr/qr.go b/qr/qr.go index b264437..6e98b72 100644 --- a/qr/qr.go +++ b/qr/qr.go @@ -13,7 +13,9 @@ import ( "gocv.io/x/gocv" ) -const timeToScan = time.Second * 5 +const ( + timeToScan = time.Second * 5 +) type Processor interface { ReadQR() ([]byte, error) diff --git a/storage/fileStorage.go b/storage/fileStorage.go index 063816d..477d5a8 100644 --- a/storage/fileStorage.go +++ b/storage/fileStorage.go @@ -34,9 +34,9 @@ func countLines(r io.Reader) uint64 { return count } -// InitFileStorage inits append-only file storage +// NewFileStorage inits append-only file storage // It takes two arguments: filename - path to a data file, lockFilename (optional) - path to a lock file -func InitFileStorage(filename string, lockFilename ...string) (Storage, error) { +func NewFileStorage(filename string, lockFilename ...string) (Storage, error) { var ( fs FileStorage err error diff --git a/storage/fileStorage_test.go b/storage/fileStorage_test.go index bf164a2..8624809 100644 --- a/storage/fileStorage_test.go +++ b/storage/fileStorage_test.go @@ -21,7 +21,7 @@ func TestFileStorage_GetMessages(t *testing.T) { N := 10 var offset uint64 = 5 var testFile = "/tmp/dc4bc_test_file_storage" - fs, err := InitFileStorage(testFile) + fs, err := NewFileStorage(testFile) if err != nil { t.Error(err) }