What is the correct/recommended way to keep grv up-to-date when building from source ? about grv HOT 3 CLOSED

The command you listed above is indeed the go-way of updating a project:

go get -u -v -x github.com/rgburke/grv/cmd/grv

However there is a long standing issue with go get -u and git submodule vendor packages described here: golang/go#17522. So you are completely correct, however due to this issue with go get -u it currently won't work 😄. Apparently this will be fixed in go version 1.11.

I normally update using steps similar to yours:

cd $GOPATH/src/github.com/rgburke/grv
git pull
make install

GRV uses git submodules which are tied to a specific commit. So although doing git pull --recurse-submodules does update each submodule (e.g. pull's down remote branches etc...), it doesn't change HEAD in that repository and the version of the submodule that GRV is built against.
This is intended and has the advantage that everyone builds GRV using the same versions of all dependencies. The disadvantage is that we're not using the latest versions of the dependencies.

If you do want to use the latest version of each dependecy then you can run:

git submodule -q foreach --recursive git reset -q --hard
git submodule update --init --recursive --remote

This will fetch the latest master and update HEAD in each git submodule. However this will also show as unstaged changes when doing a git status in GRV's repository. You will also need to comment out the line git submodule update --init --recursive under the update target in the Makefile before building GRV otherwise it will reset each submodule back to its configured commit.

In summary, doing a git pull in the GRV repository is sufficient to pull down the latest changes.

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Wow, thanks for taking the time to reply with such detail, @rgburke, and the advanced git lesson that it pulled ! When I think I got something right with git, I realize I still have so much more to learn. I've updated my build recipes.

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I'm glad the info was helpful @marcelpaulo. I've also found that when it comes to git I never stop learning 😄

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