feat: add .editorconfig for consistent formatting across editors

README.md

@@ -145,12 +145,17 @@ tooling/
 │   ├── update-issue-section/
 │   ├── update-readme-release-info/
 │   └── validate-release-plan/
-└── validation/
-    ├── schemas/                 # JSON/YAML schemas
-    │   ├── release-plan-schema.yaml
-    │   └── release-metadata-schema.yaml
-    └── scripts/
-        └── validate-release-plan.py
+├── validation/
+│   ├── schemas/                 # JSON/YAML schemas
+│   │   ├── release-plan-schema.yaml
+│   │   └── release-metadata-schema.yaml
+│   └── scripts/
+│       └── validate-release-plan.py
+└── workspace-config/            # Shared root-level config files for API repos
+    ├── .editorconfig
+    ├── .gitattributes
+    ├── .gitignore-template
+    └── README.md
 ```
 
 ## Release Information

workspace-config/.editorconfig

@@ -0,0 +1,25 @@
+# EditorConfig - https://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = false
+
+[*.{yaml,yml}]
+indent_style = space
+indent_size = 2
+
+[*.feature]
+indent_style = space
+indent_size = 2
+
+[Makefile]
+indent_style = tab

workspace-config/.gitattributes

@@ -0,0 +1,20 @@
+# Normalize all text files to LF line endings on commit.
+# Contributors on Windows will still see CRLF in their working tree
+# (if core.autocrlf is set), but the repository always stores LF.
+* text=auto eol=lf
+
+# Explicitly mark binary formats so Git never attempts EOL conversion.
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.pdf binary
+*.zip binary
+*.tar.gz binary
+*.pptx binary
+*.docx binary
+*.xlsx binary
+
+# Slim down release artifacts by excluding meeting minutes.
+/documentation/MeetingMinutes export-ignore

workspace-config/.gitignore-template

@@ -0,0 +1,19 @@
+# OS-generated files
+.DS_Store
+Thumbs.db
+Desktop.ini
+
+# Editor / IDE files
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# Node (used by some linting/tooling setups)
+node_modules/
+
+# Python
+__pycache__/
+*.pyc
+.venv/

workspace-config/README.md

@@ -0,0 +1,40 @@
+# Workspace Configuration
+
+Shared configuration files that should be placed in the **root** of each CAMARA API repository.
+
+These files standardize editor behavior, line-ending enforcement, and ignored-file patterns across all contributors, regardless of OS or IDE.
+
+## Files
+
+| File | Purpose | Placement in API repo |
+|------|---------|----------------------|
+| `.editorconfig` | Consistent indentation, charset, and line endings across editors ([spec](https://editorconfig.org)) | Copy as-is to repo root |
+| `.gitattributes` | Enforces LF line endings at the Git layer and marks binary formats | Copy as-is to repo root |
+| `.gitignore-template` | Common ignore patterns for OS, editor, and tooling artifacts | Copy to repo root **and rename** to `.gitignore` |
+
+> `.gitignore-template` is named with a `-template` suffix so that Git does not pick it up inside this tooling repository itself.
+
+## Adoption
+
+To adopt these configurations in an API repository:
+
+1. Copy `.editorconfig` and `.gitattributes` into the repository root.
+2. Copy `.gitignore-template` to the repository root and rename it to `.gitignore`. Merge with any existing `.gitignore` entries the repo already has.
+3. Commit and push.
+
+If the repository already contains files with CRLF line endings, a separate normalization PR should be created after `.gitattributes` is in place — see [#113](https://github.com/camaraproject/tooling/issues/113) for the migration approach.
+
+## How the files work together
+
+- `.editorconfig` guides editors to use the correct settings **while editing**, so contributors produce correctly formatted files from the start.
+- `.gitattributes` acts as a **safety net at the Git layer** — even if an editor writes CRLF, Git normalizes to LF on commit.
+- `.gitignore` keeps OS junk and editor artifacts out of version control.
+
+## Alignment with linting rules
+
+The `.editorconfig` settings are derived from the existing linting configurations in [`linting/config/`](../linting/config/):
+
+- **YAML** indent/whitespace rules match [`.yamllint.yaml`](../linting/config/.yamllint.yaml)
+- **Gherkin** indent rules match [`.gherkin-lintrc`](../linting/config/.gherkin-lintrc)
+
+This keeps editor formatting and CI linting in sync, so contributors get feedback while editing rather than failing in CI.