Task: escape template substitution for task params

[conejo]

I'm using gox to do parallel multiplatform builds, and it takes a parameter which is a text/template value describing the output location and name of the compiled binaries. I'm running into a problem because go-task wants to evaluate the template, and it just needs to be passed through.

buildall task:
buildall: desc: Build 64bit versions for darwin, linux, and windows cmds: - gox -arch="amd64" -os="darwin linux windows" -output="./build/{{.Dir}}_{{.OS}}_{{.Arch}}" ./cmd/hello-world/

output:
$ task buildall gox -arch="amd64" -os="darwin linux windows" -output="./build/<no value>_<no value>_<no value>" ./cmd/hello-world/

how can I escape the template in the task above so the template isn't evaluated by task?

[smyrman]

The best option is probably to rely on golang template itself for escaping. Try
{{printf "/build/{{.Dir}}_{{.OS}}_{{.Arch}}"}} in your command.

[andreynering]

Hi @conejo

For now the workaround @smyrman said should work. For the future, we may discuss choosing other delimiters:

build:
  delims: ["${", "}"]
  cmds:
    - ...

I don't know gox well, but you can also have parallel builds with Task (all deps run in parallel):

build-all:
  deps:
    - task: build
      vars: {OS: windows, arch: 386}
    - task: build
      vars: {OS: windows, arch: amd64}
    - task: build
      vars: {OS: linux, arch: 386}
    - task: build
      vars: {OS: linux, arch: amd64}
    # others

build:
  cmds:
    - go build -o "dist/app_{{.OS}}_{{.ARCH}} ./cmd/app
  env:
    GOOS: "{{.OS}}"
    GOARCH: "{{.GOARCH}}"

[conejo]

Thanks for the speedy assistance! The printf suggestion from @smyrman worked smoothly, and thanks @andreynering for giving me a different perspective and eliminating gox altogether.