style: format JSON, Markdown and YAML files with Prettier

.gitignore

@@ -5,6 +5,9 @@ ansible.cfg
 # IDEs
 .vscode/*
 !.vscode/cSpell.json
+!.vscode/extensions.json
 
 # pyenv
 .python-version
+
+!.prettierrc.yaml

.pre-commit-config.yaml

@@ -1,7 +1,6 @@
 # -*- mode: yaml -*-
 # vim:ts=2:sw=2:ai:si:syntax=yaml
 ---
-
 minimum_pre_commit_version: 1.16.1
 
 repos:
@@ -13,13 +12,26 @@ repos:
       - id: check-case-conflict
       - id: check-merge-conflict
       - id: trailing-whitespace
-        args: ['--markdown-linebreak-ext=md']
+        args: ["--markdown-linebreak-ext=md"]
       - id: end-of-file-fixer
       - id: mixed-line-ending
-        args: ['--fix=lf']
+        args: ["--fix=lf"]
       - id: check-yaml
-      - id: pretty-format-json
-        args: ['--autofix', '--indent=2', '--no-sort-keys']
+
+  # Format JSON, Markdown and YAML files with Prettier.
+  - repo: https://github.com/prettier/prettier
+    rev: "1.19.1"
+    hooks:
+      - id: prettier
+        name: Format JSON, Markdown and YAML files
+        files: "\\.(\
+          json\
+          |md|markdown|mdown|mkdn\
+          |yaml|yml\
+          )$"
+        # Do not run on Git push
+        stages: [commit]
+        verbose: false
 
   - repo: https://github.com/adrienverge/yamllint.git
     rev: v1.16.0
@@ -37,10 +49,10 @@ repos:
     hooks:
       - id: shellcheck
       - id: shfmt
-        args: ['-l', '-i', '4', '-ci', '-w']
+        args: ["-l", "-i", "4", "-ci", "-w"]
 
   - repo: https://github.com/openstack-dev/bashate.git
-    rev: '0.6.0'
+    rev: "0.6.0"
     hooks:
       - id: bashate
         verbose: false
@@ -51,9 +63,9 @@ repos:
       - id: markdownlint
 
   - repo: https://github.com/alessandrojcm/commitlint-pre-commit-hook.git
-    rev: '2.0.0'
+    rev: "2.0.0"
     hooks:
       - id: commitlint
         stages: [commit-msg]
-        additional_dependencies: ['@commitlint/config-conventional']
+        additional_dependencies: ["@commitlint/config-conventional"]
         verbose: false

.prettierrc.yaml

@@ -0,0 +1,14 @@
+# -*- mode: yaml -*-
+# vim:ts=2:sw=2:ai:si:syntax=yaml
+#
+# Prettier configuration options:
+# https://prettier.io/docs/en/options.html
+---
+printWidth: 80
+tabWidth: 2
+semi: true
+singleQuote: false
+useTabs: false
+trailingComma: none
+endOfLine: lf
+proseWrap: preserve

.vscode/.prettierrc.yaml

@@ -0,0 +1,14 @@
+# -*- mode: yaml -*-
+# vim:ts=2:sw=2:ai:si:syntax=yaml
+#
+# Prettier configuration options:
+# https://prettier.io/docs/en/options.html
+---
+printWidth: 80
+tabWidth: 4
+semi: true
+singleQuote: false
+useTabs: false
+trailingComma: none
+endOfLine: lf
+proseWrap: always