Add Linter configs

.github/linters/.commitlint.rules.js

@@ -0,0 +1,37 @@
+module.exports = {
+	rules: {
+		'type-case': [2, 'always', 'lower-case'],
+		'type-empty': [2, 'never'],
+		'type-enum': [
+			2,
+			'always',
+			[
+				'build',
+				'chore',
+				'ci',
+				'docs',
+				'feat',
+				'fix',
+				'perf',
+				'refactor',
+				'revert',
+				'style',
+				'test',
+			],
+		],
+		'scope-case': [2, 'always', 'lower-case'],
+		'scope-empty': [1, 'never'],
+		'subject-case': [
+			2,
+			'always',
+			['sentence-case'],
+		],
+		'subject-empty': [1, 'never'],
+		'subject-full-stop': [1, 'never', '.'],
+		'header-max-length': [2, 'always', 100],
+		'body-leading-blank': [1, 'always'],
+		'body-max-line-length': [2, 'always', 1000],
+		'footer-leading-blank': [1, 'always'],
+		'footer-max-line-length': [2, 'always', 100],
+	},
+};

.github/linters/.hadolint.yml

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+# Set threshold level (error | warning | info | style | ignore | none)
+failure-threshold: warning
+
+# List of ignored rules
+# See list for reference: https://github.com/hadolint/hadolint#rules
+ignored:
+
+# Override default levels for specific rules
+override:
+  error:
+  warning:
+  info:
+    - DL3008
+    - DL3027
+  style:

.github/linters/.markdown-lint.yml

@@ -0,0 +1,139 @@
+default: false # includes/excludes all rules by default
+
+# Heading levels should only increment by one level at a time <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md001>
+MD001: true
+
+# Heading style <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md003>
+MD003:
+  style: 'consistent'
+
+# Unordered list style <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md004>
+MD004:
+  style: 'consistent'
+
+# Inconsistent indentation for list items at the same level <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md005>
+MD005: true
+
+# Consider starting bulleted lists at the beginning of the line <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md006>
+MD006: true
+
+# Unordered list indentation <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md007>
+MD007: false
+
+# Trailing spaces <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md009>
+MD009: true
+
+# Hard tabs <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md010>
+MD010: false
+
+# Reversed link syntax <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md011>
+MD011: true
+
+# Multiple consecutive blank lines <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md012>
+MD012:
+  maximum: 2
+
+# Line length <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md013>
+MD013: false
+
+# Dollar signs used before commands without showing output <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md014>
+MD014: true
+
+# No space after hash on atx style heading <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md018>
+MD018: true
+
+# Multiple spaces after hash on atx style heading <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md019>
+MD019: true
+
+# No space inside hashes on closed atx style heading <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md020>
+MD020: true
+
+# Multiple spaces inside hashes on closed atx style heading <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md021>
+MD021: true
+
+# Headings should be surrounded by blank lines <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md022>
+MD022: true
+
+# Headings must start at the beginning of the line <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md023>
+MD023: true
+
+# Multiple headings with the same content <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md024>
+MD024:
+  allow_different_nesting: true
+
+# Multiple top level headings in the same document <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md025>
+MD025: false
+
+# Trailing punctuation in heading <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md026>
+MD026: true
+
+# Multiple spaces after blockquote symbol <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md027>
+MD027: true
+
+# Blank line inside blockquote <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md028>
+MD028: false
+
+# Ordered list item prefix <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md029>
+MD029:
+  style: 'one_or_ordered'
+
+# Spaces after list markers <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md030>
+MD030: true
+
+# Fenced code blocks should be surrounded by blank lines <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md031>
+MD031: true
+
+# Lists should be surrounded by blank lines <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md032>
+MD032: true
+
+# Inline HTML <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md033>
+MD033:
+  allowed_elements: ['a']
+
+# Bare URL used <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md034>
+MD034: true
+
+# Horizontal rule style <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md035>
+MD035:
+  style: 'consistent'
+
+# Emphasis used instead of a heading <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md036>
+MD036: true
+
+# Spaces inside emphasis markers <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md037>
+MD037: true
+
+# Spaces inside code span elements <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md038>
+MD038: true
+
+# Spaces inside link text <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md039>
+MD039: true
+
+# Fenced code blocks should have a language specified <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md040>
+MD040: true
+
+# First line in file should be a top level heading <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md041>
+MD041: true
+
+# No empty links <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md042>
+MD042: true
+
+# Required heading structure <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md043>
+MD043: false
+
+# Proper names should have the correct capitalization <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md044>
+MD044: false
+
+# Images should have alternate text (alt text) <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md045>
+MD045: true
+
+# Code block style <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md046>
+MD046:
+  style: 'consistent'
+
+# Files should end with a single newline character <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md047>
+MD047: true
+
+# Code fence style <https://github.com/DavidAnson/markdownlint/blob/master/doc/Rules.md#md048>
+MD048:
+  style: 'consistent'

.github/scripts/ensure_set_euox_pipefail.sh

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+#!/bin/bash
+
+# Ensures that all bash scripts in the repository use `set -euox pipefail` or `set -euo pipefail` statement at the beginning.
+
+set -euo pipefail
+
+INVALID_FILES_FOUND=0
+
+while IFS= read -r -d '' BASH_SCRIPT
+do
+    echo "checking ${BASH_SCRIPT}"
+    if ( ! grep -q "set -euo pipefail" "${BASH_SCRIPT}" ) && ( ! grep -q "set -euox pipefail" "${BASH_SCRIPT}" )
+    then
+        echo "${BASH_SCRIPT}"
+        INVALID_FILES_FOUND=1
+    fi
+done < <(find . -type f -name "*.sh" -print0) # See https://github.com/koalaman/shellcheck/wiki/SC2044
+
+if [[ INVALID_FILES_FOUND -eq 1 ]]
+then
+    echo ""
+    echo "The bash scripts above must include either 'set -euo pipefail' or 'set -euox pipefail."
+    exit 1
+else
+    echo "euox-pipefaile check finished successfully"
+fi