How to get autocomplete to not show global flags for subcommand?

[schollz]

my urfave/cli version is

v2.2.0

Checklist

• Are you running the latest v2 release? The list of releases is here.
• Did you check the manual for your release? The v2 manual is here
• Did you perform a search about this problem? Here's the Github guide about searching.

Dependency Management

• My project is using go modules.

Describe the bug

I am using this wonderful library for croc. This utility has global flags and also flags for subcommands. Autocompletion works great, except that if I use a subcommand and autocomplete a flag, it shows the global flags and the flags for the subcommand, even though only the subcommand flags can be used.

To reproduce

Describe the steps or code required to reproduce the behavior:

> git clone --depth 1 https://github.com/schollz/croc
> cd croc 
> go build
> ./croc send --<tab>
# shows subcommand flags + global flags that can't be used

Observed behavior

Subcommand shows global flags:

> # shows global flags + subcommand
> ./croc send --<tab>
--ask          --no-compress  --pass         --remember     --yes        
--code         --no-local     --ports        --stdout                    
--debug        --no-multi     --relay        --text                      
--help         --out          --relay6       --version

Global flags (for reference):

> # global flags
> ./croc --<tab>
--ask          --no-compress  --relay        --stdout                    
--debug        --out          --relay6       --version                   
--help         --pass         --remember     --yes

Expected behavior

I expected that autocompletion on subcommands only autocompletes flags that can be used on that subcommand. E.g. If you select a global flag from a subcommand flag autocompletion (e.g. croc send --yes README.md) it results in a flag provided but not defined error.

Additional context

Repo: https://github.com/schollz/croc

go version go1.15.1 linux/amd64

GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/zns/.cache/go-build"
GOENV="/home/zns/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/zns/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/zns/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/tmp/croc/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-build711943122=/tmp/go-build -gno-record-gcc-switches"

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[stale]

Closing this as it has become stale.