New added template function doesn't work

dev
1

Hi, I wonder how template functions are called in Hugo. I’ve added a new function in ‘template.go’ called Substr and created an alias inside init() function at the bottom like “substr”: Substr, just like the other functions. I’ve also written a test for it in ‘template_test.go’ and it passed fine. Then I rebuilt hugo as the following:

go build -o hugo main.go
mv hugo /usr/local/bin/

But when I tried to re-launch the server again in one of my existing Hugo project like this:

hugo server -w -v

I’ve got an error saying ‘function “substr” not defined’. Not sure what have I done wrong. I’m pretty new to Golang.

Thanks in advance for any help.

2

As I see it you did everything correct.

This suggests that the Hugo you build with isn’t the Hugo you modified.

I suggest making a cosmetic and visible change to some existing Hugo functionality and verify that your change gets applied.

Then I would look at the Go build setup. Most likely a GOPATH issue (I’m still a little bit confused by this myself, but I suspect what you see is the Hugo source fetched via “go get”)).

4

Hey guys, thanks for your reply.
It wasn’t the GOPATH issue as I’ve already done the following as suggested in the tutorial:

rm -rf "$GOPATH/src/github.com/spf13/hugo"
ln -s `pwd` "$GOPATH/src/github.com/spf13/hugo"

so the GOPATH src file is just a symbolink to my local repo. However I managed to solve the problem by running the following before I re-build Hugo.

go install github.com/spf13/hugo/hugolib

I didn’t do this before coz I wasn’t sure what is this doing. I think it probably re-install the entire Hugo library on my system somewhere.