null-ls: use specific configuration file

use `extra_args` to set a specific location path for the markdownlint rules configuration

A relative path to the rules file can be used without the the use of `vim.fn.expand()` function (which causes an error)

Without a specific configuration file, a markdownlint configuration file in the root directory of a project is used, e.g. `.markdownlint.yaml`

Resolve #1

Author: practicalli-johnny

.markdownlint.yaml

@@ -0,0 +1,262 @@
+---
+# Example markdownlint configuration with properties set to their default value
+
+# Default state for all rules
+default: true
+
+# Path to configuration file to extend
+extends: null
+
+# MD001/heading-increment/header-increment - Heading levels should only increment by one level at a time
+MD001: true
+
+# MD002/first-heading-h1/first-header-h1 - First heading should be a top-level heading
+MD002:
+  # Heading level
+  level: 1
+
+# MD003/heading-style/header-style - Heading style
+MD003:
+  # Heading style
+  style: "consistent"
+
+# MD004/ul-style - Unordered list style
+MD004:
+  # List style
+  style: "consistent"
+
+# MD005/list-indent - Inconsistent indentation for list items at the same level
+MD005: true
+
+# MD006/ul-start-left - Consider starting bulleted lists at the beginning of the line
+MD006: true
+
+# MD007/ul-indent - Unordered list indentation
+MD007:
+  # Spaces for indent
+  indent: 2
+  # Whether to indent the first level of the list
+  start_indented: false
+  # Spaces for first level indent (when start_indented is set)
+  start_indent: 2
+
+# MD009/no-trailing-spaces - Trailing spaces
+MD009:
+  # Spaces for line break
+  # br_spaces: 2
+  # Allow spaces for empty lines in list items
+  list_item_empty_lines: false
+  # Include unnecessary breaks
+  strict: false
+
+# MD010/no-hard-tabs - Hard tabs
+MD010:
+  # Include code blocks
+  code_blocks: true
+  # Fenced code languages to ignore
+  ignore_code_languages: []
+  # Number of spaces for each hard tab
+  spaces_per_tab: 1
+
+# MD011/no-reversed-links - Reversed link syntax
+MD011: true
+
+# MD012/no-multiple-blanks - Multiple consecutive blank lines
+MD012:
+  # Consecutive blank lines
+  maximum: 2
+
+# MD013/line-length - Line length
+MD013:
+  # Number of characters
+  line_length: 420
+  # Number of characters for headings
+  heading_line_length: 60
+  # Number of characters for code blocks
+  code_block_line_length: 180
+  # Include code blocks
+  code_blocks: false
+  # Include tables
+  tables: false
+  # Include headings
+  headings: true
+  # Include headings
+  headers: true
+  # Strict length checking
+  strict: false
+  # Stern length checking
+  stern: false
+
+# MD014/commands-show-output - Dollar signs used before commands without showing output
+MD014: true
+
+# MD018/no-missing-space-atx - No space after hash on atx style heading
+MD018: true
+
+# MD019/no-multiple-space-atx - Multiple spaces after hash on atx style heading
+MD019: true
+
+# MD020/no-missing-space-closed-atx - No space inside hashes on closed atx style heading
+MD020: true
+
+# MD021/no-multiple-space-closed-atx - Multiple spaces inside hashes on closed atx style heading
+MD021: true
+
+# MD022/blanks-around-headings/blanks-around-headers - Headings should be surrounded by blank lines
+MD022:
+  # Blank lines above heading
+  lines_above: 1
+  # Blank lines below heading
+  lines_below: 1
+
+# MD023/heading-start-left/header-start-left - Headings must start at the beginning of the line
+MD023: true
+
+# MD024/no-duplicate-heading/no-duplicate-header - Multiple headings with the same content
+MD024:
+  # Only check sibling headings
+  allow_different_nesting: false
+  # Only check sibling headings
+  siblings_only: false
+
+# MD025/single-title/single-h1 - Multiple top-level headings in the same document
+MD025:
+  # Heading level
+  level: 1
+  # RegExp for matching title in front matter
+  front_matter_title: "^\\s*title\\s*[:=]"
+
+# MD026/no-trailing-punctuation - Trailing punctuation in heading
+MD026:
+  # Punctuation characters not allowed at end of headings
+  punctuation: ".,;:!。，；：！"
+
+# MD027/no-multiple-space-blockquote - Multiple spaces after blockquote symbol
+MD027: true
+
+# MD028/no-blanks-blockquote - Blank line inside blockquote
+MD028: true
+
+# MD029/ol-prefix - Ordered list item prefix
+MD029:
+  # List style
+  style: "one_or_ordered"
+
+# MD030/list-marker-space - Spaces after list markers
+MD030:
+  # Spaces for single-line unordered list items
+  ul_single: 1
+  # Spaces for single-line ordered list items
+  ol_single: 1
+  # Spaces for multi-line unordered list items
+  ul_multi: 1
+  # Spaces for multi-line ordered list items
+  ol_multi: 1
+
+# MD031/blanks-around-fences - Fenced code blocks should be surrounded by blank lines
+MD031:
+  # Include list items
+  list_items: true
+
+# MD032/blanks-around-lists - Lists should be surrounded by blank lines
+MD032: true
+
+# MD033/no-inline-html - Inline HTML
+MD033:
+  # Allowed elements
+  allowed_elements: [ "a", "div", "iframe", "img", "p" ]
+
+# MD034/no-bare-urls - Bare URL used
+MD034: true
+
+# MD035/hr-style - Horizontal rule style
+MD035:
+  # Horizontal rule style
+  style: "consistent"
+
+# MD036/no-emphasis-as-heading/no-emphasis-as-header - Emphasis used instead of a heading
+MD036:
+  # Punctuation characters
+  punctuation: ".,;:!?。，；：！？"
+
+# MD037/no-space-in-emphasis - Spaces inside emphasis markers
+MD037: true
+
+# MD038/no-space-in-code - Spaces inside code span elements
+MD038: false
+
+# MD039/no-space-in-links - Spaces inside link text
+MD039: true
+
+# MD040/fenced-code-language - Fenced code blocks should have a language specified
+MD040:
+  # List of languages
+  allowed_languages: []
+  # Require language only
+  language_only: false
+
+# MD041/first-line-heading/first-line-h1 - First line in a file should be a top-level heading
+MD041:
+  # Heading level
+  level: 1
+  # RegExp for matching title in front matter
+  front_matter_title: "^\\s*title\\s*[:=]"
+
+# MD042/no-empty-links - No empty links
+MD042: true
+
+# MD043/required-headings/required-headers - Required heading structure
+MD043: false
+  # List of headings
+  # headings: []
+  # List of headings
+  # headers: []
+  # Match case of headings
+  # match_case: false
+
+# MD044/proper-names - Proper names should have the correct capitalization
+MD044:
+  # List of proper names
+  names: []
+  # Include code blocks
+  code_blocks: true
+  # Include HTML elements
+  html_elements: true
+
+# MD045/no-alt-text - Images should have alternate text (alt text)
+MD045: true
+
+# MD046/code-block-style - Code block style
+MD046: false
+  # Block style
+  # style: "consistent"
+
+# MD047/single-trailing-newline - Files should end with a single newline character
+MD047: true
+
+# MD048/code-fence-style - Code fence style
+MD048:
+  # Code fence style
+  style: "consistent"
+
+# MD049/emphasis-style - Emphasis style should be consistent
+MD049:
+  # Emphasis style should be consistent
+  style: "consistent"
+
+# MD050/strong-style - Strong style should be consistent
+MD050:
+  # Strong style should be consistent
+  style: "consistent"
+
+# MD051/link-fragments - Link fragments should be valid
+MD051: true
+
+# MD052/reference-links-images - Reference links and images should use a label that is defined
+MD052: true
+
+# MD053/link-image-reference-definitions - Link and image reference definitions should be needed
+MD053:
+  # Ignored definitions
+  ignored_definitions:
+    - "//"

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Added
 - git: remove neogit SPC gn key binding (defined in `mappings.lua`)
+- null-ls: use central markdownlint rules file in astronvim-config directory
 
 # 2023-07-12
 

plugins/null-ls.lua

@@ -14,9 +14,9 @@ return {
 
       null_ls.builtins.formatting.markdownlint.with {
         -- pass arguments to modify/override the null-ls builtin configuration
-        args = {
+        extra_args = {
           "--config ",
-          "/home/practicalli/.markdownlint.yaml",
+          "~/.config/astro-config/tool-config/markdownlint.yaml",
         },
       },
     }