go#template#create error when using vim-fugitive :Gdiff

[myitcv]

Behavior

See below.

Steps to reproduce:

• vim-fugitive commit tpope/vim-fugitive@913fff1
• vim-go commit 76cd99d
• NVIM v0.2.1-635-geb40b7ec4
• go version go1.9beta2 linux/amd64

1. Open a .go file in a git controlled repo
2. Run :Gdiff to view the differences in that file between working tree and staged version
3. See the following error:

Error detected while processing function <SNR>45_template_autocreate[3]..go#template#create:
line    6:
E472: Command failed

and the side-by-side diff fails to show.

Instead we should see the normal :Gdiff output.

This error goes away if g:go_template_autocreate = 0 (but then so does the templating of new .go files)

Configuration

As above.

[arp242]

I can't seem to reproduce this; I am using a default Neovim installation (0.2.0, not the latest beta) with just those two plugins in ~/.local/share/nvim/site/pack/plugins/start/ and no further configuration. :Gdiff works as expected.

Maybe it's a problem with some specific configuration?

[arp242]

I'll close this for now due to lack of feedback. Feel free to comment if you have further problems or questions and we can reopen this issue.

[myitcv]

@Carpetsmoker - apologies, yes I didn't get a chance to dig into this any further.

If it raises its head again I'll certainly dig deeper.

Thanks

[nathanmalishev]

Hey there, I seem to experience a similar issue with vim-fugitive & vim-go.
Probably a simple noob error but worth asking.
The plugin works great on all accounts, except for when I :Gdiff, with vim-fugitive i receive a similar error.
Possibly because vim-fugitive, does something with the file path, placing it under fugitive:///?

go env GOROOT fails - Works literally every place i can find to run the command, terminal, tmux, vim etc

[bhcleek]

@nathanmalishev I've seen similar issues, but haven't dug into a root cause yet.

In your case, it looks like you may have g:go_auto_sameids=1. If that's the case, then you can work around this issue by calling :GoSameIdsAutoToggle to turn off g:go_auto_sameids when you have a fugitive window open.

[nathanmalishev]

@bhcleek thanks for the quick response. That seems to be the work around!

[vedharish]

@Carpetsmoker I can reproduce this as well..
Required -

1. git repo must be initialised for the file
2. the file currently being edited must be UNTRACKED in git

Point 2. makes sense because the :Gdiff command compares an empty buffer (filetype=go) with the whole file and vim-go tries to template_autocreate on the empty buffer

:Gdiff works fine for me on all git tracked files

No idea if PR #1516 will fix this as there are no changes to template_autocreate function. So just went ahead and commented this