https://github.com/schollz/git

Force `go get` to make shallow clone and pulls
https://github.com/schollz/git

git go-get golang tools

Last synced: 2 days ago
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Force `go get` to make shallow clone and pulls

• Host: GitHub
• URL: https://github.com/schollz/git
• Owner: schollz
• License: mit
• Created: 2018-05-02T22:59:20.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-05-03T12:06:06.000Z (over 6 years ago)
• Last Synced: 2024-08-09T00:42:28.557Z (about 2 months ago)
• Topics: git, go-get, golang, tools
• Language: Go
• Homepage:
• Size: 4.88 KB
• Stars: 10
• Watchers: 3
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# How to use shallow clones for `go get`

This is a little hack to use shallow clones for new git checkouts with `go get`. Unfortunately for Gophers, [this has been an open issue for three years counting](https://github.com/golang/go/issues/13078) without a workable solution aside from patching the go toolchain yourself. This solution utilizes a *git* wrapper that determines if a pull/clone is happening and then makes sure it is shallow. 

To install it you do 

```

$ go get github.com/schollz/git

```

The *git*-wrapper tool is named *"git"* on purpose so that your GOPATH can be prepended to the PATH and then the *git*-wrapper substituted for the real *git* (`/usr/bin/git`). So then, to activate shallow cloning all you have to do is: 

```

$ export PATH=$GOPATH/bin:$PATH

```

which you can add to your `.bashrc` files if you want it to be permanent. This way, the wrapper will aways be used and the wrapper will force cloning to be shallow.

# Benchmarks

Here's a benchmark showing a 50% reduction in disk usage and thus a 50% reduction in time taken for a `go get`. You'll not get that much for smaller repositories, but its not bad.

## normal `go get`

```

% docker run -it golang:1.10 /bin/bash

root@d9208178f1fa:/go# time go get github.com/juju/juju/...

real    7m35.631s

user    1m40.059s

sys     0m45.436s

root@d9208178f1fa:/go# du -sh .

1.1G

```

## shallow `go get`

```

% docker run -it golang:1.10 /bin/bash

root@68135fb64a3e:/go# go get github.com/schollz/git

root@68135fb64a3e:/go# export PATH=$GOPATH/bin:$PATH

root@68135fb64a3e:/go# time go get github.com/juju/juju/...

real    3m0.335s

user    0m29.192s

sys     0m17.253s

root@d9208178f1fa:/go# du -sh .

499M    .

```

# Acknowledgements

Thanks [tscholl2](https://github.com/tscholl2) for the idea.

# License

MIT