1. Ramit Surana @ramitsurana /in/ramitsurana
Dependency management in
Golang

2. Agenda
About Me
History
Dependencies
The Problem
Golist to the rescue
Gopkg
Gopm
Godep
Glide
GB

3. About Me
Open Source Contributor
Gopher
ramitsurana@gmail.com

4. History
Started as Go a "systems language"
The turning point for the project
was the release of Go 1 in March
2012
This year Gophercon turns 3 years
old.

5. Dependencies
Some file that you are trying to install in
order to run another file.
Whenever a class A uses another class or
interface B, then A depends on B. In such a
situation the class A is called the
"dependant" and the class or interface B is
called the "dependency".

6. The Problem

7. Golist cmd comes to the Rescue
Go list uses –f to use flags
$ go list -f '{{ .Imports }}' github.com/xxx/yyy
$ go list -f '{{ .Deps }}' github.com/xxx/yyy
$ list -f '{{ join .Imports "n" }}' github.com/xxx/yyy

8. Gopkg
Built by Gustavo Niemeyer
Provides stable APIs for the Go
language
Uses yaml package for building
URL's
URL is cleaner and shorter
It redirects to the package
documentation at godoc.org when
opened with a browser
Gopkg
gopkg.in

9. Gom
Built by Yasuhiro Matsumoto.
Uses a Gomfile to create test
enviornment and groups for the
project
Could generate and use travis test
by generating a travis-yml file.
Gom
github.com/mattn/gom

10. Sample Gomfile

11. Gvt
Simple vendoring tool made for Go
native vendoring
Made by Filo Sottile
No need to manually chase, copy or
cleanup dependencies Gvt
github.com/FiloSottile/gvt

12. Gopm
Built by Jiahua Chen
Download packages by version,not
git,hg,etc.
It has a registry using which you can
fetch the package.

13. Gopm Registry

14. Godep
Most used tool for Managing
dependencies in Golang
Builds 2 directories vendor and
Exports all the dependencies to
JSON file Godep
github.com/tools/godep

15. Glide
It supports tools likegit,bzr,hg,svn etc.
Manage and install dependencies on-
demand
Dependencies for a project are listed in
a glide.yaml file
It creates a glide.lock file containing the
complete dependency tree pinned to
specific versions.

16. How to use glide ?
Installation
$ curl https://glide.sh/get | sh
Creating yaml file
$ glide create
Glide up
$ glide up
It creates the glide.lock file which locks the versions of the current state
version of dependencies

17. GB
Proof of concept (PoC) replacement
build tool
Basically project to help you start a
workflow for your project
Workspace for all the Go code that
is required to build your project.
No environment variables to set

18. Other Tools
Govendor
GPM (https://github.com/pote/gpm)
GVM (https://github.com/pote/gvp)
And many more ….

19. Got Questions ?

20. Thank You