Go embed does not see dot files inside dot directory

[renta]

What version of Go are you using (go version)?

$ go version
go version go1.16.5 linux/amd64

Does this issue reproduce with the latest release?

Yes.

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/vasiliy/.cache/go-build"
GOENV="/home/vasiliy/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/vasiliy/go/pkg/mod"
GONOPROXY="my-company-repo.example"
GONOSUMDB="my-company-repo.example"
GOOS="linux"
GOPATH="/home/vasiliy/go"
GOPRIVATE="my-company-repo.example"
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.16.5"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/home/vasiliy/projects/my-awesome-project/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build3333807026=/tmp/go-build -gno-record-gcc-switches"

What did you do?

I try to use go:embed to include some file templates inside a service binary. Now the service structure looks like this:
|_internal
|__templates
|___files <- here I store project templates
|___files.go <- here project templates are embed

Code to embed subdirectory:

//go:embed files/*
templateFiles embed.FS

So inside the files directory I have a couple which path is:
.gitlab/helm/my-project/.helmignore <- this file cannot be found inside embed.FS
.gitlab/.gitlab-ci.yml <- this file cannot be found inside embed.FS

But there are no problems with files with paths like:
.gitlab/CODEOWNERS
.gitignore
.golangci.yml

So I suppose there is an issue with //go:embed mechanism when dot file is inside a dot directory.

What did you expect to see?

I hope to see all the files inside all the directories inside the embed.FS

What did you see instead?

There are no files with dots in filenames that has a dot directory inside their parents paths names.

[tmthrgd]

I believe this is a duplicate of #43854. That proposal has been accepted but is waiting on being implemented.

[seankhliao]

Duplicate of #43854