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, 12 insertions, 0 deletions

diff --git a/vendor/github.com/gostaticanalysis/analysisutil/file.go b/vendor/github.com/gostaticanalysis/analysisutil/file.go
index 2aeca1d9e..b9b295530 100644
--- a/vendor/github.com/gostaticanalysis/analysisutil/file.go
+++ b/vendor/github.com/gostaticanalysis/analysisutil/file.go
@@ -3,6 +3,7 @@ package analysisutil
 import (
 	"go/ast"
 	"go/token"
+	"regexp"
 
 	"golang.org/x/tools/go/analysis"
 )
@@ -16,3 +17,14 @@ func File(pass *analysis.Pass, pos token.Pos) *ast.File {
 	}
 	return nil
 }
+
+var genCommentRegexp = regexp.MustCompile(`^// Code generated .* DO NOT EDIT\.$`)
+
+// IsGeneratedFile reports whether the file has been generated automatically.
+// If file is nil, IsGeneratedFile will return false.
+func IsGeneratedFile(file *ast.File) bool {
+	if file == nil || len(file.Comments) == 0 {
+		return false
+	}
+	return genCommentRegexp.MatchString(file.Comments[0].List[0].Text)
+}