go.mod, vendor: update (#3358)

* go.mod, vendor: remove unnecessary dependencies

Commands:
1. go mod tidy
2. go mod vendor

* go.mod, vendor: update cloud.google.com/go

Commands:
1. go get -u cloud.google.com/go
2. go mod tidy
3. go mod vendor

* go.mod, vendor: update cloud.google.com/*

Commands:
1. go get -u cloud.google.com/storage cloud.google.com/logging
2. go mod tidy
3. go mod vendor

* go.mod, .golangci.yml, vendor: update *lint*

Commands:
1. go get -u golang.org/x/tools github.com/golangci/golangci-lint@v1.47.0
2. go mod tidy
3. go mod vendor
4. edit .golangci.yml to suppress new errors (resolved in the same PR later)

* all: fix lint errors

hash.go: copy() recommended by gosimple
parse.go: ent is never nil
verifier.go: signal.Notify() with unbuffered channel is bad. Have no idea why.

* .golangci.yml: adjust godot rules

check-all is deprecated, but still work
if you're hesitating too - I'll remove this commit

1 files changed, 48 insertions, 0 deletions

diff --git a/vendor/github.com/ldez/gomoddirectives/module.go b/vendor/github.com/ldez/gomoddirectives/module.go
new file mode 100644
index 000000000..907be244f
--- /dev/null
+++ b/vendor/github.com/ldez/gomoddirectives/module.go
@@ -0,0 +1,48 @@
+package gomoddirectives
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+
+	"golang.org/x/mod/modfile"
+)
+
+type modInfo struct {
+	Path      string `json:"Path"`
+	Dir       string `json:"Dir"`
+	GoMod     string `json:"GoMod"`
+	GoVersion string `json:"GoVersion"`
+	Main      bool   `json:"Main"`
+}
+
+// GetModuleFile gets module file.
+func GetModuleFile() (*modfile.File, error) {
+	// https://github.com/golang/go/issues/44753#issuecomment-790089020
+	cmd := exec.Command("go", "list", "-m", "-json")
+
+	raw, err := cmd.CombinedOutput()
+	if err != nil {
+		return nil, fmt.Errorf("command go list: %w: %s", err, string(raw))
+	}
+
+	var v modInfo
+	err = json.NewDecoder(bytes.NewBuffer(raw)).Decode(&v)
+	if err != nil {
+		return nil, fmt.Errorf("unmarshaling error: %w: %s", err, string(raw))
+	}
+
+	if v.GoMod == "" {
+		return nil, errors.New("working directory is not part of a module")
+	}
+
+	raw, err = os.ReadFile(v.GoMod)
+	if err != nil {
+		return nil, fmt.Errorf("reading go.mod file: %w", err)
+	}
+
+	return modfile.Parse("go.mod", raw, nil)
+}