Add --print-config CLI flag to print the configuration for the give…

…n file

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 ## Unreleased
 
+### Added
+
+- Add `--print-config` CLI flag to print the configuration for the given file.
+
 ## [v0.9.0](https://github.com/thibaudcolas/curlylint/releases/tag/v0.9.0) 2020-05-14
 
 ### Added

README.md

@@ -62,6 +62,14 @@ Don’t lint, check for syntax errors and exit.
 curlylint --parse-only template-directory/
 ```
 
+#### `--print-config`
+
+Print the configuration for the given file, and exit.
+
+```sh
+curlylint --print-config some-file.html
+```
+
 #### `--rule`
 
 Specify rules, with the syntax `--rule 'code: {"json": "value"}'`. Can be provided multiple times to configure multiple rules.

curlylint/cli.py

@@ -63,6 +63,12 @@ def path_empty(
     is_flag=True,
     help="Don’t lint, check for syntax errors and exit.",
 )
+@click.option(
+    "--print-config",
+    is_flag=True,
+    help="Print the configuration for the given file.",
+    is_eager=True,
+)
 @click.option(
     "-f",
     "--format",
@@ -148,6 +154,7 @@ def main(
     verbose: bool,
     quiet: bool,
     parse_only: bool,
+    print_config: bool,
     config: Optional[str],
     format: str,
     stdin_filepath: str,

curlylint/config.py

@@ -80,6 +80,10 @@ def read_pyproject_toml(
     if not config:
         return None
 
+    if ctx.params.get("print_config", False):
+        print(toml.dumps({"tool": {"curlylint": config}}))
+        ctx.exit(0)
+
     if ctx.default_map is None:
         ctx.default_map = {}
     ctx.default_map.update(config)  # type: ignore  # bad types in .pyi

docs/README.md

@@ -45,7 +45,6 @@ Most of curlylint’s CLI is already based on that of black: include/excludes, c
 - Support using a file with ignore paths.
 - Disable colored output.
 - Cache results / only check changed files.
-- Print config for the given file.
 
 ## Linting ideas