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x/review: Support custom git remote helpers #17299

wlynch opened this issue Sep 30, 2016 · 4 comments


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commented Sep 30, 2016

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

go version go1.7.1 linux/amd64

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


What did you do?

go get a package that belonged to a repository that used a custom git remote helper.

What did you expect to see?

The repo was successfully fetched.

What did you see instead?

"cannot download, uses insecure protocol"


vcs.go is opinionated about what schemes are considered secure. If you are using a git remote helper, tools like go get will return an error because it thinks it is insecure. Passing --insecure allows the repo to be successfully fetched, but this isn't ideal because then all fetches that are pulled in from go get will allow insecure schemes.

We should let vcs.go be aware of the GIT_ALLOW_PROTOCOL environment variable to override the list of secure schemes for git fetches.

Other tools like git-codereview that are affected by similar issues should also be updated.

I'm happy to work on this.


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commented Sep 30, 2016

CL mentions this issue.

gopherbot pushed a commit that referenced this issue Oct 3, 2016
cmd/go: add support for GIT_ALLOW_PROTOCOL
Allows users to override the default secure protocol list by setting the
GIT_ALLOW_PROTOCOL environment variable.

Addresses #17299 for vcs.go.

Change-Id: If575861d2b1b04b59029fed7e5d12b49690af50a
Reviewed-by: Ian Lance Taylor <>
Run-TryBot: Ian Lance Taylor <>
TryBot-Result: Gobot Gobot <>

@quentinmit quentinmit added the NeedsFix label Oct 3, 2016

@quentinmit quentinmit added this to the Go1.8 milestone Oct 3, 2016


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commented Oct 3, 2016

@wlynch Does your commit resolve this issue?


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commented Oct 3, 2016

With respect to golang/go, this should be resolved. I'll open a new issue in golang/review to track the changes needed for git-codereview.

@wlynch wlynch closed this Oct 3, 2016


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commented Oct 3, 2016

Issues are shared between golang/go and golang/review. Reopening to track the changes to golang/review.

I'm also fine with owning this change.

@wlynch wlynch reopened this Oct 3, 2016

@quentinmit quentinmit changed the title cmd/go: Support custom git remote helpers x/review: Support custom git remote helpers Oct 3, 2016

@quentinmit quentinmit modified the milestones: Unreleased, Go1.8 Oct 3, 2016

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