Use taskfile variable to define primary Go module path

Although support was added to the Go module related "templates" for projects which contain modules at other paths, the
assumption remained that there will always be a primary module in the root of the repository, and this path was hardcoded
at several locations in the taskfiles.

It might be that a project that is not a Go module contains an accessory Go module in a subfolder. In this case, the use
of a taskfile variable will allow that path to be defined in one place, avoiding the need to override the hardcoded
incorrect location whenever a Go module-related task is run manually.

Author: per1234

workflow-templates/assets/check-go-task/Taskfile.yml

@@ -12,21 +12,21 @@ tasks:
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-go-task/Taskfile.yml
   go:vet:
     desc: Check for errors in Go code
-    dir: '{{default "./" .GO_MODULE_PATH}}'
+    dir: "{{default .DEFAULT_GO_MODULE_PATH .GO_MODULE_PATH}}"
     cmds:
       - go vet {{default .DEFAULT_GO_PACKAGES .GO_PACKAGES}}
 
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-go-task/Taskfile.yml
   go:fix:
     desc: Modernize usages of outdated APIs
-    dir: '{{default "./" .GO_MODULE_PATH}}'
+    dir: "{{default .DEFAULT_GO_MODULE_PATH .GO_MODULE_PATH}}"
     cmds:
       - go fix {{default .DEFAULT_GO_PACKAGES .GO_PACKAGES}}
 
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-go-task/Taskfile.yml
   go:lint:
     desc: Lint Go code
-    dir: '{{default "./" .GO_MODULE_PATH}}'
+    dir: "{{default .DEFAULT_GO_MODULE_PATH .GO_MODULE_PATH}}"
     cmds:
       - |
         if ! which golint &>/dev/null; then
@@ -41,6 +41,6 @@ tasks:
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-go-task/Taskfile.yml
   go:format:
     desc: Format Go code
-    dir: '{{default "./" .GO_MODULE_PATH}}'
+    dir: "{{default .DEFAULT_GO_MODULE_PATH .GO_MODULE_PATH}}"
     cmds:
       - go fmt {{default .DEFAULT_GO_PACKAGES .GO_PACKAGES}}

workflow-templates/assets/go-task/Taskfile.yml

@@ -2,14 +2,17 @@
 version: "3"
 
 vars:
+  # Path of the project's primary Go module:
+  DEFAULT_GO_MODULE_PATH: ./
   DEFAULT_GO_PACKAGES:
     sh: |
-      echo $(cd {{default "./" .GO_MODULE_PATH}} && go list ./... | tr '\n' ' ' || echo '"ERROR: Unable to discover Go packages"')
+      echo $(cd {{default .DEFAULT_GO_MODULE_PATH .GO_MODULE_PATH}} && go list ./... | tr '\n' ' ' || echo '"ERROR: Unable to discover Go packages"')
   LDFLAGS:
 
 tasks:
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/go-task/Taskfile.yml
   go:build:
     desc: Build the Go code
+    dir: "{{.DEFAULT_GO_MODULE_PATH}}"
     cmds:
       - go build -v {{.LDFLAGS}}

workflow-templates/assets/test-go-task/Taskfile.yml

@@ -5,7 +5,7 @@ tasks:
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/test-go-task/Taskfile.yml
   go:test:
     desc: Run unit tests
-    dir: '{{default "./" .GO_MODULE_PATH}}'
+    dir: "{{default .DEFAULT_GO_MODULE_PATH .GO_MODULE_PATH}}"
     cmds:
       - |
         go test \

workflow-templates/check-go-task.md

@@ -12,7 +12,7 @@ Install the [`check-go-task.yml`](check-go-task.yml) GitHub Actions workflow to
 
 - [`Taskfile.yml`](assets/check-go-task/Taskfile.yml) - Linting and formatting [tasks](https://taskfile.dev/).
   - Install to: repository root (or merge into the existing `Taskfile.yml`).
-- [`Taskfile.yml`](assets/go-task/Taskfile.yml) - `DEFAULT_GO_PACKAGES` variable
+- [`Taskfile.yml`](assets/go-task/Taskfile.yml) - `DEFAULT_GO_MODULE_PATH` and `DEFAULT_GO_PACKAGES` variables
   - Merge into `Taskfile.yml`
 
 ### Configuration

workflow-templates/test-go-task.md

@@ -14,7 +14,7 @@ Install the [`test-go-task.yml`](test-go-task.yml) GitHub Actions workflow to `.
 
 - [`Taskfile.yml`](assets/test-go-task/Taskfile.yml)
   - Install to: repository root (or merge into the existing `Taskfile.yml`).
-- [`Taskfile.yml`](assets/go-task/Taskfile.yml) - `DEFAULT_GO_PACKAGES` variable
+- [`Taskfile.yml`](assets/go-task/Taskfile.yml) - `DEFAULT_GO_MODULE_PATH` and `DEFAULT_GO_PACKAGES` variables
   - Merge into `Taskfile.yml`
 
 ### Configuration