List external dependencies of package

[Johann Höchtl]

Is there a way to list the external dependencies of a go package?. Every package a package imports not coming from std?

I used the search functionality of this list and tried stackexchange but wasn't able to identify an answer. Sorry if it's a know use case and already documented.

Johann

[Johann Höchtl]

On 10.11.2013 08:53, Islan Dberry wrote:

The command

go list -f {{.Deps}}

list all dependencies. It should be easy to pipe the output through a filter to remove standard packages.

What makes a standard package distinguishable from an external package? The lack of "github", "Bitbucket" etc. in its specifier?

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[Dave Cheney]

go list std

will give you the list of standard packaqes, with a bit of work you
can subtract that set from the set of dependencies.

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[Keith Rarick]

On Sun, Nov 10, 2013 at 12:05 AM, Johann Höchtl
<johann....@gmail.com> wrote:
> What makes a standard package distinguishable from an external package?

For each package P (in your case, for each dependency),
'go list -f {{.Standard}} P' will tell you.

[Dave Cheney]

Nice tip!

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[Sebastien Binet]

nice!
$ go list -f '{{.Deps}}' | tr "[" " " | tr "]" " " | xargs go list -f
'{{if not .Standard}}{{.ImportPath}}{{end}}'

-s

[luz...@gmail.com]

On Sunday, November 10, 2013 10:05:31 AM UTC+1, Sebastien Binet wrote:

nice!
$ go list -f '{{.Deps}}' | tr "[" " " | tr "]" " " | xargs go list -f
'{{if not .Standard}}{{.ImportPath}}{{end}}'

Without the tr calls:

$ go list -f '{{join .Deps "\n"}}' |  xargs go list -f '{{if not .Standard}}{{.ImportPath}}{{end}} 

[Caleb Spare]

A few months back I made a tiny tool to do exactly this.

https://github.com/cespare/deplist

You can just 'go get github.com/cespare/deplist' and then 'deplist github.com/your/package' or whatever.

-Caleb

On Saturday, November 9, 2013 11:12:21 PM UTC-8, Johann Höchtl wrote:

[Johann Höchtl]

$ go list -f '{{join .Deps "\n"}}' |  xargs go list -f '{{if not .Standard}}{{.ImportPath}}{{end}}'

Hm, but that gives me - strangely - only my packages, not the ones I import.

[Johann Höchtl]

Am Sonntag, 10. November 2013 21:07:42 UTC+1 schrieb Caleb Spare:

A few months back I made a tiny tool to do exactly this.

https://github.com/cespare/deplist

You can just 'go get github.com/cespare/deplist' and then 'deplist github.com/your/package' or whatever.

deplist works great. However, it only accepts a single package and I got so much used to the /... - syntax of the go tool. This monster gives me what I want:

go list -f '{{.ImportPath}}' P/... | xargs -n 1 deplist | grep -v P | sort -u

with P being the partial package path.

Johann

[Keith Rarick]

On Sun, Nov 10, 2013 at 1:16 PM, Johann Höchtl <johann....@gmail.com> wrote:
> go list -f '{{.ImportPath}}' P/...

You can replace that with

go list P/...

since {{.ImportPath}} is the default format for go list.