[pretty] add markdown support (#4881)

.prettierrc

@@ -0,0 +1,7 @@
+{
+    "$schema": "http://json.schemastore.org/prettierrc",
+    "printWidth": 80,
+    "tabWidth": 2,
+    "useTabs": false,
+    "proseWrap": "never"
+}

script/make-pretty

@@ -30,30 +30,37 @@
 #
 # The script to check or format source code of OpenThread.
 #
-# Format python and c/c++:
+# Format c/c++, markdown, and python:
 #
 #     script/make-pretty
 #
-# Format python only:
-#
-#     script/make-pretty python
-#
 # Format c/c++ only:
 #
 #     script/make-pretty clang
 #
+# Format markdown only:
+#
+#     script/make-pretty markdown
+#
+# Format python only:
+#
+#     script/make-pretty python
+#
 # Check only:
 #
 #     script/make-pretty check clang
+#     script/make-pretty check markdown
 #     script/make-pretty check python
 #
 
 set -euo pipefail
 
-readonly OT_CLANG_DIRS=(examples include src tests tools)
-readonly OT_PYTHON_DIRS=(tests tools)
 readonly OT_BUILD_JOBS=$(getconf _NPROCESSORS_ONLN)
+readonly OT_EXCLUDE_DIRS=(third_party)
+
 readonly OT_CLANG_SOURCES=('*.c' '*.cc' '*.cpp' '*.h' '*.hpp')
+readonly OT_MARKDOWN_SOURCES=('*.md')
+readonly OT_PYTHON_SOURCES=('*.py')
 
 do_clang_format()
 {
@@ -61,7 +68,7 @@ do_clang_format()
     echo -e '     format c/c++'
     echo -e '====================='
 
-    git ls-files "${OT_CLANG_SOURCES[@]}" | grep -E "^($(echo "${OT_CLANG_DIRS[@]}" | tr ' ' '|'))" \
+    git ls-files "${OT_CLANG_SOURCES[@]}" | grep -v -E "^($(echo "${OT_EXCLUDE_DIRS[@]}" | tr ' ' '|'))" \
         | xargs -n3 -P"${OT_BUILD_JOBS}" script/clang-format -style=file -i -verbose
 }
 
@@ -71,17 +78,37 @@ do_clang_check()
     echo -e '     check c/c++'
     echo -e '====================='
 
-    git ls-files "${OT_CLANG_SOURCES[@]}" | grep -E "^($(echo "${OT_CLANG_DIRS[@]}" | tr ' ' '|'))" \
+    git ls-files "${OT_CLANG_SOURCES[@]}" | grep -v -E "^($(echo "${OT_EXCLUDE_DIRS[@]}" | tr ' ' '|'))" \
         | xargs -n3 -P"${OT_BUILD_JOBS}" script/clang-format-check
 }
 
+do_markdown_format()
+{
+    echo -e '======================'
+    echo -e '     format markdown'
+    echo -e '======================'
+
+    git ls-files "${OT_MARKDOWN_SOURCES[@]}" | grep -v -E "^($(echo "${OT_EXCLUDE_DIRS[@]}" | tr ' ' '|'))" \
+        | xargs -n10 -P"${OT_BUILD_JOBS}" npx prettier@2.0.4 --write
+}
+
+do_markdown_check()
+{
+    echo -e '======================'
+    echo -e '     check markdown'
+    echo -e '======================'
+
+    git ls-files "${OT_MARKDOWN_SOURCES[@]}" | grep -v -E "^($(echo "${OT_EXCLUDE_DIRS[@]}" | tr ' ' '|'))" \
+        | xargs -n10 -P"${OT_BUILD_JOBS}" npx prettier@2.0.4 --check
+}
+
 do_python_format()
 {
     echo -e '======================'
     echo -e '     format python'
     echo -e '======================'
 
-    git ls-files '*.py' | grep -E "^($(echo "${OT_PYTHON_DIRS[@]}" | tr ' ' '|'))" \
+    git ls-files "${OT_PYTHON_SOURCES[@]}" | grep -v -E "^($(echo "${OT_EXCLUDE_DIRS[@]}" | tr ' ' '|'))" \
         | xargs -n10 -P"${OT_BUILD_JOBS}" python3 -m yapf --verbose --style google -ipr
 }
 
@@ -91,21 +118,24 @@ do_python_check()
     echo -e '     check python'
     echo -e '====================='
 
-    git ls-files '*.py' | grep -E "^($(echo "${OT_PYTHON_DIRS[@]}" | tr ' ' '|'))" \
+    git ls-files "${OT_PYTHON_SOURCES[@]}" | grep -v -E "^($(echo "${OT_EXCLUDE_DIRS[@]}" | tr ' ' '|'))" \
         | xargs -n10 -P"${OT_BUILD_JOBS}" python3 -m yapf --verbose --style google -dpr
 }
 
 do_check()
 {
     if [ $# == 0 ]; then
-        do_python_check
         do_clang_check
+        do_markdown_check
+        do_python_check
     elif [ "$1" == 'clang' ]; then
         do_clang_check
+    elif [ "$1" == 'markdown' ]; then
+        do_markdown_check
     elif [ "$1" == 'python' ]; then
         do_python_check
     else
-        >&2 echo "Unsupported check: $1. Supported: clang, python"
+        >&2 echo "Unsupported check: $1. Supported: clang, markdown, python"
         # 128 for Invalid arguments
         exit 128
     fi
@@ -115,16 +145,19 @@ main()
 {
     if [ $# == 0 ]; then
         do_clang_format
-        do_python_format
+        do_markdown_format
-    elif [ "$1" == 'python' ]; then
         do_python_format
     elif [ "$1" == 'clang' ]; then
         do_clang_format
+    elif [ "$1" == 'markdown' ]; then
+        do_markdown_format
+    elif [ "$1" == 'python' ]; then
+        do_python_format
     elif [ "$1" == 'check' ]; then
         shift
         do_check "$@"
     else
-        >&2 echo "Unsupported action: $1. Supported: clang, python"
+        >&2 echo "Unsupported action: $1. Supported: clang, markdown, python"
         # 128 for Invalid arguments
         exit 128
     fi