godoc can't find standard library source anymore (Go 1.4, wily)

[James Henstridge]

Using the godoc tool to show documentation for standard library packages no longer works on Wily. For example:

    $ godoc net/http
    2015/06/29 09:28:52 open /usr/lib/go/src/pkg/net/http: no such file or directory

I have the golang-src package installed, but it seems that the source for the package is now at /usr/lib/go/src/net/http (note the missing "pkg" directory component). It looks like the Go packages match the source layout for Go 1.4, so perhaps the godoc tool needs to be updated?

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: golang-go.tools 0.0~hg20140703-4
ProcVersionSignature: Ubuntu 3.19.0-20.20-generic 3.19.8
Uname: Linux 3.19.0-20-generic x86_64
ApportVersion: 2.17.3-0ubuntu4
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Jun 29 09:26:03 2015
Dependencies:
 gcc-5-base 5.1.1-12ubuntu1
 libc6 2.21-0ubuntu4
 libgcc1 1:5.1.1-12ubuntu1
 libjs-jquery 1.7.2+dfsg-3ubuntu2
 multiarch-support 2.21-0ubuntu4
InstallationDate: Installed on 2013-10-29 (607 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
SourcePackage: golang-go.tools
UpgradeStatus: Upgraded to wily on 2015-06-13 (15 days ago)

[James Henstridge (jamesh)]

The version of godoc in this package also seems to be unable to parse the some newer language features used in the standard library. For example:

    $ godoc /usr/lib/go/src/os/exec
    2015/07/10 12:41:04 /target/exec.go:368:6: expected operand, found 'range' (and 3 more errors)

So it really needs to be updated.

[James Henstridge (jamesh)]

In Debian, it looks like this source package has been renamed to golang-golang-x-tools to account for the move from Mercurial to Git and code.google.com to Github:

https://packages.debian.org/source/sid/golang-golang-x-tools

We might need something even newer to work with the new 1.5 packages though.