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proposal: cmd/go: go.mod directive to exclude files from module zips #76208

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proposal: cmd/go: go.mod directive to exclude files from module zips#76208
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GoCommandcmd/goProposalToolProposalIssues describing a requested change to a Go tool or command-line program.modules
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Proposal

Description

@leungster
leungster
opened on Nov 6, 2025

Go version

go1.25.4

Output of go env in your module/workspace:

AR='ar'
CC='cc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='c++'
GCCGO='gccgo'
GO111MODULE=''
GOARCH='arm64'
GOARM64='v8.0'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/Users/xxx/Library/Caches/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/Users/xxx/Library/Application Support/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -ffile-prefix-map=/var/folders/8l/cvrswwhs47l18h6nt67jtrdw0000gn/T/go-build1416362801=/tmp/go-build -gno-record-gcc-switches -fno-common'
GOHOSTARCH='arm64'
GOHOSTOS='darwin'
GOINSECURE=''
GOMOD='/Users/xxx/work/go/main/go.mod'
GOMODCACHE='/Users/xxx/go/pkg/mod'
GOOS='darwin'
GOPATH='/Users/xxx/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/opt/homebrew/Cellar/go/1.25.4/libexec'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/Users/xxx/Library/Application Support/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/opt/homebrew/Cellar/go/1.25.4/libexec/pkg/tool/darwin_arm64'
GOVCS=''
GOVERSION='go1.25.4'
GOWORK=''
PKG_CONFIG='pkg-config'

What did you do?

I'm trying to use go get on a large monorepo that has ignore directives in its go.mod file. The ignore statements have testdata/ and folders containing zips/binaries/.so files.

What did you see happen?

I am hitting an error message with create zip: module source tree too large (max size is 524288000 bytes).

In mod/zip the ignore directive isn't honored. As a workaround, I put dummy go.mod files to workaround the issue but it is untenable for me to sprinkle these files around the repository.

What did you expect to see?

The ignore directive in go.mod already handles ignoring folders/files for go tooling such as gopls. It would be helpful to honor this for go get as well.

Activity

  1. gabyhelp commented on Nov 6, 2025

    @gabyhelp
    gabyhelp
    on Nov 6, 2025

    Related Issues

    (Emoji vote if this was helpful or unhelpful; more detailed feedback welcome in this discussion.)

  2. gabyhelp
    added
    ToolProposalIssues describing a requested change to a Go tool or command-line program.
    on Nov 6, 2025

  3. seankhliao commented on Nov 6, 2025

    @seankhliao
    seankhliao
    on Nov 6, 2025
    Member

    This would be a new proposal
    the accepted proposal doesn't exclude files from module zip files #42965 (comment)

    Previously rejected as #37724

  4. seankhliao
    changed the title [-]go.mod: ignore directive is not honored with go get[/-] [+]proposal: cmd/go: go.mod directive to exclude files from module zips[/+] on Nov 6, 2025
  5. gopherbot
    added
    Proposal
    on Nov 6, 2025
  6. gopherbot
    added this to the Proposal milestone on Nov 6, 2025
  7. seankhliao
    added
    modules
    on Nov 10, 2025
  8. seankhliao
    added
    GoCommandcmd/go
    on Feb 6, 2026
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