Only install Python package dependencies from relevant group

The "Poetry" tool is used to manage the project's Python package dependencies.

Dependencies might be classified into distinct categories. The most basic classification would be:

- Application dependencies: used by the project's applications
- Development dependencies: tools used in the development and maintenance of the project, but not by the application

By default, Poetry installs all non-optional dependencies. This can be inefficient in a case where a specific operation
is being performed, since a given operation might only require the dependencies from one category and so the
installation of dependencies from the other is pointless for that operation.

For this reason, Poetry allows the user to organize dependencies into arbitrary "groups", and to specify which groups
should be installed.

The Python package installation task is hereby updated to allow dependency groups to be specified, and the calls to that
task updated to specify the groups they require.

Author: per1234

Taskfile.yml

@@ -520,6 +520,8 @@ tasks:
     desc: Check for commonly misspelled words
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run codespell
 
@@ -555,6 +557,8 @@ tasks:
     desc: Correct commonly misspelled words where possible
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run codespell --write-changes
 
@@ -898,6 +902,8 @@ tasks:
     desc: Format Python files
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run black .
 
@@ -906,6 +912,8 @@ tasks:
     desc: Lint Python code
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run flake8 --show-source
 
@@ -1012,5 +1020,7 @@ tasks:
     desc: Check for problems with YAML files
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run yamllint --format {{default "colored" .YAMLLINT_FORMAT}} .

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

@@ -13,6 +13,8 @@ tasks:
     deps:
       - task: docs:generate
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run mkdocs build --strict
 
@@ -22,5 +24,7 @@ tasks:
     deps:
       - task: docs:generate
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run mkdocs serve

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

@@ -7,6 +7,8 @@ tasks:
     desc: Format Python files
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run black .
 
@@ -15,5 +17,7 @@ tasks:
     desc: Lint Python code
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run flake8 --show-source

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

@@ -7,5 +7,7 @@ tasks:
     desc: Check for problems with YAML files
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run yamllint --format {{default "colored" .YAMLLINT_FORMAT}} .

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

@@ -54,11 +54,17 @@ tasks:
 
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/poetry-task/Taskfile.yml
   poetry:install-deps:
-    desc: Install dependencies managed by Poetry
+    desc: |
+      Install dependencies managed by Poetry.
+      Environment variable parameters:
+      - POETRY_GROUPS: Poetry dependency groups to install (default: install all dependencies).
+    run: when_changed
     deps:
       - task: poetry:install
     cmds:
-      - poetry install --no-root
+      - |
+        poetry install \
+          {{if .POETRY_GROUPS}} --only {{.POETRY_GROUPS}} {{end}}
 
   # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/poetry-task/Taskfile.yml
   poetry:update-deps:

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

@@ -7,6 +7,8 @@ tasks:
     desc: Check for commonly misspelled words
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run codespell
 
@@ -15,5 +17,7 @@ tasks:
     desc: Correct commonly misspelled words where possible
     deps:
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run codespell --write-changes

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

@@ -8,5 +8,7 @@ tasks:
     deps:
       - task: go:build
       - task: poetry:install-deps
+        vars:
+          POETRY_GROUPS: dev
     cmds:
       - poetry run pytest tests