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, 32 insertions, 0 deletions

diff --git a/vendor/github.com/julz/importas/flags.go b/vendor/github.com/julz/importas/flags.go
new file mode 100644
index 000000000..f8107104a
--- /dev/null
+++ b/vendor/github.com/julz/importas/flags.go
@@ -0,0 +1,32 @@
+package importas
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+	"strings"
+)
+
+func flags(config *Config) flag.FlagSet {
+	fs := flag.FlagSet{}
+	fs.Var(stringMap(config.RequiredAlias), "alias", "required import alias in form path:alias")
+	fs.BoolVar(&config.DisallowUnaliased, "no-unaliased", false, "do not allow unaliased imports of aliased packages")
+	fs.BoolVar(&config.DisallowExtraAliases, "no-extra-aliases", false, "do not allow non-required aliases")
+	return fs
+}
+
+type stringMap map[string]string
+
+func (v stringMap) Set(val string) error {
+	spl := strings.SplitN(val, ":", 2)
+	if len(spl) != 2 {
+		return errors.New("import flag must be of form path:alias")
+	}
+
+	v[spl[0]] = spl[1]
+	return nil
+}
+
+func (v stringMap) String() string {
+	return fmt.Sprintf("%v", (map[string]string)(v))
+}