feat: support client/server mode (#295)

* chore(app): change dir

* feat(rpc): add a proto file and auto-generated files

* chore(dep): add dependencies

* fix(app): fix import path

* fix(integration): fix import path

* fix(protoc): use enum for severity

* chore(Makefile): add fmt andd protoc

* chore(clang): add .clang-format

* refactor: split functions for client/server (#296)

* refactor(db): split db.Download

* refactor(standalone): create a different package

* refactor(vulnerability): split FillAndFilter

* fix(protoc): use enum for severity

* chore(Makefile): add fmt andd protoc

* chore(clang): add .clang-format

* fix(db): remove an unused variable

* fix(db): expose the github client as an argument of constructor

* refactor(vulnerability): add the detail message

* feat(rpc): add rpc client (#302)

* fix(protoc): use enum for severity

* chore(Makefile): add fmt andd protoc

* chore(clang): add .clang-format

* feat(rpc): convert types

* feat(rpc): add rpc client

* token: Refactor to handle bad headers being set

Signed-off-by: Simarpreet Singh <simar@linux.com>

* feat(rpc): add rpc server (#303)

* feat(rpc): add rpc server

* feat(utils): add CopyFile

* feat(server/config): add config struct

* feat(detector): add detector

* feat(scanner): delegate procedures to detector

* fix(scanner): fix the interface

* test(mock): add mocks

* test(rpc/server): add tests

* test(rpc/ospkg/server): add tests

* tets(os/detector): add tests

* refactor(library): move directories

* chore(dependency): add google/wire

* refactor(library): introduce google/wire

* refactor(ospkg/detector): move directory

* feat(rpc): add eosl

* refactor(ospkg): introduce google/wire

* refactor(wire): bind an interface

* refactor(client): use wire.Struct

* chore(Makefile): fix wire

* test(server): add AssertExpectations

* test(server): add AssertExpectations

* refactor(server): remove debug log

* refactor(error): add more context messages

* test(server): fix error message

* refactor(test): create a constructor of mock

* refactor(config): remove an unused variable

* test(config): add an assertion to test the config struct

* feat(client/server): add sub commands (#304)

* feat(rpc): add rpc server

* feat(utils): add CopyFile

* feat(server/config): add config struct

* feat(detector): add detector

* feat(scanner): delegate procedures to detector

* fix(scanner): fix the interface

* feat(client/server): add sub commands

* merge(server3)

* test(scan): remove an unused mock

* refactor(client): generate the constructor by wire

* fix(cli): change the default port

* fix(server): use auto-generated constructor

* feat(ospkg): return eosl

* test(integration): add integration tests for client/server (#306)

* fix(server): remove unnecessary options

* test(integration): add integration tests for client/server

* fix(server): wrap an error

* fix(server): change the update interval

* fix(server): display the error detail

* test(config): add an assertion to test the config struct

* fix(client): returns an error when failing to initizlie a logger

* test(ospkg/server): add eosl

* Squashed commit of the following:

* test(server): refactor and add tests (#307)

* test(github): create a mock

* test(db): create a mock

* test(server): add tests for DB hot update

* chore(db): add a log message

* refactor(db): introduce google/wire

* refactor(rpc): move directory

* refactor(injector): fix import name

* refactor(import): remove new lines

* fix(server): display the error detail

* fix(server): change the update interval

* fix(server): wrap an error

* test(integration): add integration tests for client/server

* fix(server): remove unnecessary options

* refactor(server): return an error when failing to initialize a logger

* refactor(server): remove unused error

* fix(client/server): fix default port

* chore(README): add client/server

* chore(README): update

pkg/utils/utils_test.go

@@ -9,6 +9,9 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
 	"github.com/aquasecurity/trivy/pkg/log"
 	"github.com/kylelemons/godebug/pretty"
 )
@@ -142,3 +145,51 @@ func TestFilterTargets(t *testing.T) {
 		})
 	}
 }
+
+func TestCopyFile(t *testing.T) {
+	type args struct {
+		src string
+		dst string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		content []byte
+		want    string
+		wantErr string
+	}{
+		{
+			name:    "happy path",
+			content: []byte("this is a content"),
+			args:    args{},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			src := tt.args.src
+			if tt.args.src == "" {
+				s, err := ioutil.TempFile("", "src")
+				require.NoError(t, err, tt.name)
+				_, err = s.Write(tt.content)
+				require.NoError(t, err, tt.name)
+				src = s.Name()
+			}
+
+			dst := tt.args.dst
+			if tt.args.dst == "" {
+				d, err := ioutil.TempFile("", "dst")
+				require.NoError(t, err, tt.name)
+				dst = d.Name()
+				require.NoError(t, d.Close(), tt.name)
+			}
+
+			_, err := CopyFile(src, dst)
+			if tt.wantErr != "" {
+				require.NotNil(t, err, tt.name)
+				assert.Equal(t, err.Error(), tt.wantErr, tt.name)
+			} else {
+				assert.NoError(t, err, tt.name)
+			}
+		})
+	}
+}