How to make a linux executable file using gitlab (go env)? - go

Question

I am trying to make a Linux executable file of my Go project. I have the following configuration in my .config-ci.yml in my gitlab project.
demo_job_1:
tags:
- cpf
- cpf-test
- testing
- unit-testing
script:
- go run test/main.go
- GOOS=linux GOARCH=amd64 go build
- go env
- cd test
- ./test
- echo Successfully run and Built
After running this pipeline, I still get the GOOS=windows when I check in env file. How can I build my project so that the output after building is of Linux executable file. Right now, I am getting .exe file which runs on Windows only.
You can see the project details in the following gitlab:
https://gitlab.com/smilekison/test
This is the error that is shown by Pipeline Job:
$ go run test/main.go
Hello world
$ GOOS=linux GOARCH=amd64 go build
GOOS=linux : The term 'GOOS=linux' is not recognized as the name of a cmdlet, function, script file, or operable
program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At C:\WINDOWS\TEMP\build_script487326907\script.ps1:207 char:1
+ GOOS=linux GOARCH=amd64 go build
+ ~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (GOOS=linux:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException

Answer 1

First to address your actual error: it seems you are on a windows based runner. That means you have to use windows CMD commands. It does not know ENV, etc.
You can do go env -w GOOS="linux" instead. Same with GOARCH. Then just run go build ..
You can also use a variables section to overwrite go env with environment variables:
variables:
GOOS: "linux"
GOARCH: "amd64"
It goes at the top of the gitlab file somewhere.
Here my typical build pipeline for Go projects using docker containers:
build_App:
image: golang:1.15.3
stage: build
allow_failure: false
tags:
- unix
script:
- go mod download
- mkdir $CI_PROJECT_DIR/release
- cd cmd/app
- GOOS=linux GOARCH=amd64 go build -o $CI_PROJECT_DIR/release/app .
artifacts:
paths:
- $CI_PROJECT_DIR/release
And test pipeline
go_test:
image: golang:1.15.3
stage: verify
allow_failure: false
tags:
- unix
script:
- go mod download
- go test -race -cover ./...
This is based on a runner that uses docker images to build in.

Answer 2

I needed to write go env -w GOOS="linux" GOARCH="amd64" to make the executable file for linux and if I want to make executable for windows I have to just rename linux to windows and I can make go language install by using image : golang:1.15.7 here. This way my .gitlab-ci.yml file can get GO Lang install and can run any go command.
demo_job_1:
stages:
-build
build:
stage: build
image : golang:1.15.7
tags:
- cpf
- cpf-test
- testing
- unit-testing
script:
- go run test/main.go
- go env -w GOOS=linux GOARCH=amd64
- go env
- cd test
- ./test
- echo Successfully run and Built